资源简介

Unit 13 We’re trying to save the earth!
Section B2 (2a-2e)
【学习目标】
1. 学习并掌握下列单词：upside，gate，bottle，president，inspiration，metal，creativity
2. 能正确使用以下常用表达：throw away，not…anymore，put sth. to good use，build…out of，pull down，be good at，set up，be known for，use sth. to do sth.，not only…but also…
3. 培养扫读，跳读等阅读技巧。
4. 通过对文章的学习，有回收利用变废为宝的意识。
【学习重点】
阅读技巧扫读和跳读的学习
【学习难点】
掌握并运用重点词组的用法
【课前预习】
一、根据中文意思写出下列重点单词。
1. 大门 n. ____________
2. 瓶子n. ____________
3. 负责人；主席；总统 n. ____________
4. 灵感；鼓舞人心的人(或事物) n. ____________
5. 铁n. ____________
6. (音乐、艺术)作品n. ____________
7. 金属n. ____________
8. 创造力；独创性n. ____________
二、认真阅读课文，找出下列重点短语。
9. 扔掉；抛弃 ______________
10. 好好利用某物 ______________
11. 拆下；摧毁 _______________
12. 一艘倒过来的旧船 _________________
13. 成为……的榜样 __________________
14. 建立一个网站 ___________________
15. 一个“金属艺术”主题公园 ____________________
16. 因……而闻名 ___________________
三、用以上重点短语完成下列句子。
17. 你曾经考虑过怎样把这些东西充分地利用起来吗？
Have you ever thought about how these things can actually _______ _______ _______ _______ _______
18. 王涛希望建一个“金属艺术”主题公园来向人们展示环境保护的重要性。
Wang Tao hopes to _______ _______ _______ _______ _______ _______ _______ to show people the importance of environmental protection.
【合作探究】
探究一 阅读文章，完成任务
1. Fast reading
Task 1快速阅读课文，找出各段的段落大意：
Para. 1 Wang Tao uses materials from old cars to make beautiful art pieces.
Para. 2 Many old things can be put to good use.
Para. 3 Jessica Wong uses old clothes to make bags.
Para. 4 Amy Hayes built a house out of rubbish.
Task 2 Work on 2b.
Names What materials did they use What did they make
2. Careful reading
Task 1 仔细阅读第二段，完成下面的表格。
Parts of the house Materials used
The windows and doors
The top of the house
And the gate in front of her house
Task 2仔细阅读第三段，回答下面的问题。
(1) How long has Jessica Wong been using old clothes to make bags
(2) How does she sell her bags
Task 3 仔细阅读第四段，补全下面的短文。
Wang Tao’s “metal art”
Wang Tao _______ _______ for using iron and other materials from old cars to make beautiful art pieces. The more popular works can even be seen in art shops _______ _______ ________. Wang Tao hopes to set up a "metal art" theme park to show people the importance of environmental protection. Not only can the art bring happiness to others, but it also shows that even cold, hard iron can be ______ ______ to life with a little creativity.
探究二
了解英语构词法(Word Formation)和前缀(prefix)、后缀(suffix)英语单词构成有其规律，很好的掌握了构词规律，才可以很好、很快的、准确的记忆单词。常见的构词法有合成(Compounding)、派生(Derivation)和转化(Conversion)。前缀和后缀属于派生法。英语单词的核心部分，在于词根(root)，词的意义主要是由组成单词的词根体现出来的。词根可以单独构成词，也可以彼此组合成词，通过前缀(prefix)后缀(suffix)来改变单词的词性和意义。也就是说，单词一般由三部分组成：词根、前缀和后缀。词根决定单词意思，前缀改变单词词义，后缀决定单词词性。
单词中位于词根前面的部分就是前缀。前缀，可以改变单词的意思。常见的前缀有如下几类：
前缀 意义 举例
dis- 否定 disagree 不同意
il-/im-/in-/ir- 否定 illegal非法的；impossible不可能的；impolite不礼貌的；irrational不合理的
mid- 中间 midnight半夜；midsummer仲夏
non- 否定 nonsmoker不抽烟的人
over- 过度 overwork工作过度
un- 否定 unusual 不寻常的
mis- 错，坏 misunderstand误会；misspell拼错
re- 回，再 return返回; review复习
后缀：英语单词中的后缀没有任何实在意义，只表示词性。常用的后缀有三种：动词后缀、名词后缀和形容词后缀。例如：
后缀 意义 举例
-able 形容词化 可……的；能……的 comfortable舒适的； reusable可重复利用的
-ance, -ence 名词化 状态，行为，性质 importance重要性；confidence自信
-ful 形容词化 具有……的性质 helpful有帮助的；useful有用的
-ion, -tion, -sion名词化 情况，状态，性质，行为 expression表达； suggestion建议；celebration庆祝
-less 形容词化 否定 useless无用的；fearless无畏的
-ness 名词化 状态；性质 kindness善良；sadness悲伤； darkness黑夜; happiness快乐
-en 动词化 使…… shorten (v.) 缩短
探究三 知识链接
1. Do you often throw away things you don’t need anymore
1) throw away扔掉，丢弃
e.g. I never throw anything away. 我不舍得扔任何东西。
2) 错过(机会等)，放过；未能很好利用(机会等)
e.g. Don’t throw away this opportunity. 不要错过这个机会。
3) 浪费(时间、金钱等)乱花(钱等)
e.g. It will be time and money thrown away. 这将是浪费时间和金钱。
2. She lives in a house in the UK that she built herself out of rubbish.
build / make ... out of 用……建造/制造
e.g. He built a model ship out of wood. 他用木头造了个模型船。
Some birds build nests out of twigs. 一些鸟儿用细枝筑巢。
3. The top of the house is an old boat turned upside down.
turned upside down “被翻转过来的；被颠倒过来的”，作后置定语修饰boat。英语中短语和从句用作定语时, 一般置于名词之后, 作后置定语。
e.g. the sign on the wall 墙上的标志牌
(介词短语后置作定语)
the children boating on the lake湖上泛舟的孩子们
(现在分词短语后置作定语)
the stories invented by eight or nine year olds 八九岁小孩子编写的故事
(过去分词短语后置作定语)
A machine that can do many kinds of housework 一个能做多种家务的机器
(句子后置作定语)
4. Not only can the art bring happiness to others, but it also shows that even cold,
hard iron can be brought back to life with a little creativity.
bring back to life 带回到生活
e.g. We couldn’t bring him back to life.
bring back 恢复；使想起；归还
e.g. These books must be brought back within a week.
【课时小结】
1. 单词：upside，gate，bottle，president，inspiration，metal，creativity
2. 短语：throw away，not…anymore，put sth. to good use，build…out of，pull down，be good at，set up，be known for，use sth. to do sth.，not only…but also…
【达标检测】
I．核心词汇短语巩固
1. The p of the country will go on a tour to China in September.
2. It was d that the population of the manatees is becoming smaller and smaller.
3. It’s a good habit to use n at meals, but we should try to use fewer.
4. They are about 10 feet long and they weigh about 1,000 p .
5. We should p animals. It is wrong to kill wild animals.
6. Nothing is waste if you have (有创造的) mind.
7. Our aim is to make people aware of the (重要性) of animal protection.
8. This kind of (材料) can be used to make planes and cars.
9. Many poets and artists have drawn their (灵感) from nature.
10. It’s (非比寻常) for me, but I’m learning from this one.
II. 用括号内所给单词的适当形式填空。
1. __________ (actual) I have been taught English for five years.
2. This kind of game will help children with their __________ (create).
3. Everyone should know the __________ (important) of environmental protection.
4. This is a very __________ (use) book. You should read it carefully.
5. We will visit our teacher __________ (recent).
III. 选择填空。
( )1. —Do you know what the clothes on the show are made of
—Waste paper. You see, waste things can _______ to life.
A. bring back B. be brought back
C. take away D. be taken away
( )2. The wall is dangerous, we’d better _______ or it may hurt people.
A. pull it down B. pull it over
C. Pull it up D. Pull it back
( )3. He would like to _______ the next Clean-up Day.
A. play with B. play to C. play against D. play a part in
( )4. The _______ you came up with works out well and we will make more
money.
A. problem B. picture C. transportation D. method
( )5. —The shark’s fins are good to people’s health, aren’t they
—No. None of the scientific studies _______ this. It’s not.
A. believe B. support C. accept D. manage
IV. 根据汉语意思完成句子，每空一词。
1. 上个月他们用木材建造了一栋房子。
They _______ a house _______ _______wood last month.
2. 墙上的油画被人放倒了。
The painting on the wall is _______.
3. 把好的食物扔掉是一种浪费。
It is a waste to _______ _______ good food.
4. 这个故事使我们回想起在一起时快乐的童年时光。
This story _______ _______ our happy childhood together.
5. 我认为你应该好好利用这本词典。
I think you should _______ the dictionary _______ _______ _______.
【自我评价】
1. 本课我学会了什么？
________________________________________________________
2. 通过本课的学习，我还有哪些疑问？
________________________________________________________
参考答案
【课前预习】
1. gate 2. bottle 3. president 4. inspiration 5. iron 6. work 7. metal 8. creativity
9. throw away 10. put sth. to good use 11. pull…down
12. an old boat turned upside down
13. be an inspiration to sb.
14. set up a website
15. a “metal art” theme park
16. be known for
17. be put to good use
18. set up a “metal art” theme park
【合作探究】
探究一
1. Task 1
Para. 1– Many old things can be put to good use.
Para. 2 –Amy Hayes built a house out of rubbish.
Para. 3–Jessica Wong uses old clothes to make bags.
Para. 4– Wang Tao uses materials from old cars to make beautiful art pieces.
Task 2
Names What materials did they use What did they make
Amy Hayes windows and doors of old buildings that have been pulled down an old boat rocks old glass bottles a house
Jessica Wong old clothes, especially old jeans bags
Wang Tao iron and other materials from old cars beautiful art pieces
2.
Task 1
Parts of the house Materials used
The windows and doors old buildings around her town that were pulled down
The top of the house An old boat
And the gate in front of her house Rock and old glass bottles
Task 2
1. For a few years.
2. She opened a small shop and also set up a website to sell them online.
Task 3
is known; around the city; brought back
【达标检测】
I. 1. president 2. discovered 3. napkins 4. pounds 5. protect
6. creative 7. importance 8. materials 9. inspiration 10. unusual
II. 1. Actually 2. creativity 3. importance 4. useful 5. recently
III. BADDB
IV. 1. built… out of 2. put upside down 3. throw away 4. brought back
5. put…to good useUnit 13 We’re trying to save the earth!
Section B1 (1a-1e)
【学习目标】
1. 学习并掌握下列词汇：recycle，napkin
学习并正确使用以下常用表达：stop doing sth.，It’s hard to do sth.
学习并会用下列句型：
(1) Turn off the lights when you leave a room.
(2) Turn off the shower while you are washing your hair.
(3) —Recycling paper is really easy.
—I agree. But it’s hard to stop riding in cars.
2. 培养听说能力，能够听懂对话，并用目标语言进行对话。
3. 学会更多日常的环保措施，在日常生活中，从我做起。
【学习重点】
提高听力，练习目标语言，提高口语交际能力。
【学习难点】
流利表达自己的想法
【课前预习】
一、根据中文意思写出下列重点单词。
1. 回收利用；再利用v. ____________
2. 餐巾；餐巾纸 n. ____________
二、认真阅读课文，找出下列重点短语。
3. 回收书和纸张 _____________________
4. 使用纸巾 _____________________
5. 关掉淋浴头 _____________________
6. 开车出行 _____________________
三、用以上重点短语完成下列句子。
7. 回收废纸真的很容易。
_______ _______ is really easy.
8. 但是阻止开车出行却很难。
But it’s hard to _______ _______ _______ _______.
9. 我们真的不应该使用纸巾。
We really _______ _______ _______ _______.
【合作探究】
探究一 阅读课本P101，学习下列短语并在书中标记。
1) recycle books and paper 回收书和废纸
2) stop doing sth. 停止做某事
3) turn off the shower 关掉淋浴头
4) use paper napkins 使用纸巾
5) it’s hard to do sth. 做某事很困难
6) ride in cars 开车出行
探究二 个人环保行动大调查。以下环保行动哪些是你做得好的，哪些是你做得不够的。和你的组员交流一下吧。
Ways of environmental protection I did it well. I didn’t do it very well.
turning off the lights
turning off the shower
recycling books and paper
not riding in cars
taking my own bags when shopping
not littering and spitting
not buying any products made of endangered animals
探究三 听1c录音，完成下面对话。
Jack: Turn off the lights, Julia. It _______ _______.
Julia: Oh, I usually do that. I was just _______ _______ _______.
Jack: I see. I’ve just read a book which gives ideas about how we can _______ _______ _______. For example, you should _______ _______ _______ _______ when you’re washing your hair.
Julia: Oh, I would never do that. I have very short hair. It only takes a few minutes to wash. What else does it say
Jack: You should take your own bags when you go shopping.
Julia: Oh, that’s easy. I’ll do that _______ _______ _______. What else
Jack: People should _______ _______ _______ _______ and _______ _______ _______.
Julia: No way! It would take me 45 minutes to get to school by bike!
Jack: But it’s good for the environment! _______, I like riding my bike.
Julia: Yes, and you also live _______ _______ school!
探究四 知识链接
1．recycle books and paper回收书和纸张　
[小小翻译官]
回收利用v. 　　　　　
回收利用n. 　　　　　
可回收的adj.
【拓展】重新使用v. reuse 重写v. rewrite 重建v. rebuild
语境串记(用recycle的适当形式填空)
Paper is . We’d better all the waste paper.
The of paper is good for the environment.
纸是可以回收利用的。我们最好把所有的废纸回收再利用。纸的回收再利用对环境有益。
2. I stopped using them last year. 我去年就不再用它们了。
[小小翻译官]
停下正在做的事 _________________
停下来去做另一件事 _________________　
尽力做某事 _________________
尝试去做某事 _________________
记得要做某事 _________________
记得做过某事 _________________
【课时小结】
Words：recycle，napkin
Phrases：stop doing sth.，It’s hard to do sth.
Sentences：
(1) Turn off the lights when you leave a room.
(2) Turn off the shower while you are washing your hair.
(3) —Recycling paper is really easy.
—I agree. But it's hard to stop riding in cars.
【达标检测】
I. 从方框中选择合适的单词并用其适当形式填空。
take, recycle, own, napkin, shop
1. __________ paper is a really easy thing for everyone.
2. The girl doesn’t have her __________ room.
3. She went __________ with her sister in the supermarket yesterday.
4. My brother is __________ a shower in the bathroom now.
5. And if you have to cough, use your __________ to cover your mouth.
II. 用括号内所给单词的适当形式填空。
1. “Stop __________ (talk) and listen to me.” The teacher said to us.
2. You’d better keep the window open when __________ (sleep) in summer.
3. She felt sorry for __________ (be) late again.
4. The old man used to __________ (like) basketball when he was young.
5. He has been used __________ (live) alone.
III. 单项选择。
1. —How can we deal with waste paper
—The best way is to ________ it. We can save lots of trees by doing so.
A. clean B. recycle C. throw D. burn
2. —What should I do to be a green man
—It is easy. For example，________ your own bags when ________.
A. take; shopping B. taking; shopping
C. taking; you shopping D. take; you shopping
3. They were too tired. They decided to stop ________ a rest.
A. had B. having C. to have D. to having
4. We find ________ hard to do a job very well.
A. this B. that C. it D. these
5. —We are supposed to recycle paper and bottles. It can help the environment.
—________. It can save money, too.
A. It’s nothing B. Best wishes C. I agree D. All right
IV. 完形填空。
I am Grace Cortese, and I am 10 years old. I believe I can make a difference in 1 the environment, because my science teacher, Mrs. Esby, tells us that there are many things we can do to help protect the environment 2 we are willing to change our habits.
Every year at my birthday party, I 3 charitable donations instead of gifts. When I was eight，I asked my friends to donate to the Natural Resources Defense Council to save the polar bears. I 4 almost $150. Last year，my friend，Mary，also did that. Imagine how much money we could raise to save the environment if everyone asked for charitable donations 5 their birthdays!
My whole 6 is doing things to help protect the earth, too. Our school makes a carpooling (拼车) program to reduce the number of cars on the road, and we have a “Walk to School” day once a year. 7 science teacher，Mrs. Esby, has a “Teenie Greenies” club at lunch and she teaches a class on how to recycle after school. And we 8 do beach clean-up.
If you 9 to do something for the environment, look through the website Grades of Green. It is 10 of great ideas for us to reduce, reuse and recycle waste, and it also has a lot of really interesting facts.
1. A. using B. protecting C. cleaning D. preventing
2. A. even if B. until C. because D. if
3. A. ask for B. look for C. pay for D. send for
4. A. sold B. borrowed C. raised D. rented
5. A. to B. for C. with D. from
6. A. school B. home C. factory D. office
7. A. Her B. His C. Your D. My
8. A. still B. yet C. also D. already
9. A. want B. use C. enjoy D. refuse
10. A. short B. full C. tired D. fond
【自我评价】
1. 本课我学会了什么？
__________________________________________________________
2. 通过本课的学习，我还有哪些疑问？
_____________________________________________________________
参考答案
【课前预习】
1. recycle 2. napkin 3. recycle books and paper 4. use paper napkins 5. turn off the shower
6. ride in cars 7. Recycling paper 8. stop riding in cars 9. Shouldn’t use paper napkins
【合作探究】
探究三
saves electricity; in a hurry; save the environment; turn off the shower; from now on
stop riding in cars; start riding bikes; besides; close to
探究四
1. recycle；recycling；recyclable；recyclable；recycle；recycling
2. stop doing sth.
stop to do sth.
try to do sth.
try doing sth.
remember to do sth.
remember doing sth.
【达标检测】
I. 1. Recycling 2. own 3. shopping 4. taking 5. napkin
II. 1. talking 2. sleeping 3. being 4. like 5. living
III. 1-5 BACCC
IV. 1-5 BDACB 6-10 ADCABUnit 13 We’re trying to save the earth!
Section A2 (3a-3b)
【学习目标】
1．学习并掌握新词汇：shark，fin, cruel, harmful，chain，ecosystem，low，industry，law, scientific
2．学会并正确使用以下常用表达：
hear of，cut off，throw…into，no longer，not only…but also，be harmful to，at the top of…，the sale of…
3. 通过学习3a部分的文章，了解鲨鱼的生存现状，树立保护濒危动植物的意识。
【学习重点】
理解阅读材料，掌握细节信息获取方法
【学习难点】
连词在阅读材料中的应用
【课前预习】
一、根据中文意思写出下列重点单词。
1. 鲨鱼n. _______________ 2. (鱼) 鳍n. _____________
3. 科学上的；科学的adj. ________________ 4. 残酷的；残忍的adj. _________________
5. 有害的adj. ________________________ 6. 链子；链条n. _____________________
7. 生态系统n. ______________________ 8. 工业；行业n. ___________________
9. 法律；法规n. ___________________
二、认真阅读课文，找出下列重点短语。
10. 鱼翅汤 ___________________
11. 处于食物链的顶端 ____________________
12. 在过去的20到30年间 ___________________
13. 环境保护组织 _____________________
14. 健全法律 ________________________
15. 鱼翅买卖 ________________________
三、用以上重点短语完成下列句子。
16. 但是你意识到当你每次在品尝一碗鱼翅汤时，你正在杀死一整头鲨鱼吗？
But do you realize that you're killing a whole shark each time you enjoy ______ ______ ______ ______ ______ ______
17. 在过去的20到30年里，有些种类的鲨鱼的数量已经下降了百分之九十多。
The numbers of some kinds of sharks have fallen by over 90 percent ______ ______ ______
20 to 30 years.
18. 如果我们不采取措施来阻止这种鱼翅买卖，鲨鱼可能有一天会消失。
Sharks may disappear one day if we do not do something to ______ ______ ______ ______
______ ______.
【合作探究】
探究一 背景知识：了解一下关于WildAid（野生救援）和WWF（世界自然基金会）的背景知识。
野生救援（WildAid）是在美国注册的非营利非政府的国际环保组织，使命是取缔针对濒危野生动物的非法贸易。野生救援的工作重点是提高公众意识，通过公共宣传活动，教育公众减少对濒危野生动物制品的消费需求，同时提高环境保护的意识。传递的信息简短有力：没有买卖，就没有杀害！野生救援通过媒体宣传，旨在影响人们的环保态度、激励人们的行为改变，减少对环境的影响，从而产生显著的集体影响。
世界自然基金会（World Wide Fund for Nature）是在全球享有盛誉的、最大的独立性非政府环境保护组织之一，自1961年成立以来，WWF一直致力于环保事业，总部位于瑞士格朗。WWF的使命是遏止地球自然环境的恶化，创造人类与自然和谐相处的美好未来。为此致力于：保护世界生物多样性；确保可再生自然资源的可持续利用；推动降低污染和减少浪费性消费的行动。
探究二、阅读课本P99，学习下列短语并在书中标记。
1. 听说 _______________________ 2. 鱼翅汤 _____________________
3. 一整只鲨鱼 _________________ 4. 一碗…… ____________________
5. 切掉 ______________________ 6. 扔回 ______________________
7. 不仅……而且…… ______________ 8. 对……有害 ________________________
9. 位于食物链顶端 __________________ 10. 在海洋生物系统里 ________________
11. 给……带来危害 ______________________
12. 濒临灭绝 ____________________________
13. ……的数量 ____________________________
14. 降低了多少(幅度) ______________________
15. 在最近的20到30年里 __________________
16. 环境保护组织 ___________________________
17. 健全法律 ____________________________
18. 鲨鱼鳍买卖 ____________________________
19. 到目前为止 ____________________________
20. 科学研究 _______________________________
探究三、阅读课文P99，完成下列任务
1. Fast reading
1) Read the title, the first and last sentences in each paragraph and find the main ideas.
Para. 1 ___________________________________
Para. 2. ___________________________________
Para. 3. ___________________________________
2) Read the passage quickly and complete the chart in 3a.
2. Close reading
1) Sharks are endangered, read the passage carefully and judge the sentences.
( ) We have to kill a whole shark to get a bowl of shark fin soup.
( ) People cut off sharks’ fins and throw the sharks back into the ocean.
( ) Sharks are in the bottom of the food chain in the ocean’s ecosystem.
( ) Wild Aid and the WWF are environmental protection groups in China.
2) Read the passage again and complete the short passage.
Some people like to eat shark fin soup. Many people don’t 1__________they are 2__________ a whole shark when they enjoy a bowl of shark fin soup.
But getting the shark fin is very 3__________. When people catch sharks, they 4__________ __________ their fins and 5 __________ the sharks 6 __________ into the ocean. The sharks slowly 7__________ because they can’t 8__________ without fins. And it is also 9__________to the environment. Sharks are at the 10__________ of the food chain. If the numbers of sharks 11__________ too low, it will 12__________ the balance of the nature.
Environmental protection groups have asked governments to 13__________ laws to stop the sale of the shark fins. Please say no to shark fin soup, and take actions to 14__________ the sharks!
探究四、知识链接
1. This is not only cruel, but also harmful to the environment.
这种做法不但残忍，而且对环境有害。
be harmful to…对……有害 =be bad for…
【小小翻译官】
抽烟对我们的健康有害。
Smoking ______ ______ ______ our health.
＝Smoking ______ ______ ______ our health.
2. The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years.
在过去的20到30年里，有些种类的鲨鱼的数量已经下降了百分之九十多。
……的数量 __________　
一些，许多 __________
语境串记(根据汉语提示完成句子)
______ ______ ______ measures have been taken to protect wild animals because ______ ______ ______ them has become smaller and smaller.
因为野生动物的数量变得越来越少，所以(我们)采取了一些措施来保护它们。
3. Sharks are at the top of the food chain, so if their numbers drop, the ocean's ecosystem will be in danger.
鲨鱼处于食物链的顶端，所以如果它们的数量下降，海洋生态系统将会陷入危险。
【小小翻译官】
濒危的adj_____________　危险的adj. _____________ 　
危险n. ____________ 处于危险之中____________
语境串记(用danger的适当形式填空)。
Sharks are ___________ animals. But now they are ____________. People catch them and cut off their fins, which leads them to death. So they are ____________ ____________ of extinction. If the numbers of sharks drop too low, it will bring ____________ to all ocean life.
【课时小结】
重点单词
shark, fin, cruel, harmful, chain, ecosystem, low, industry, law, scientific
重点词组
hear of，cut off，throw…into，no longer，not only…but also，be harmful to，at the top of…，
the sale of…
重点句式
1. But do you realize that you’re killing a whole shark each time you enjoy a bowl of shark fin soup
你意识到当你每次在品尝一碗鱼鳍汤时，你正在杀死一整头鲨鱼吗？
2. This method is not only cruel, but also harmful to the environment.
这种方法不仅残酷，而且对环境有害。
3. The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years.
在最近的20年到30年的时间里，这种鲨鱼的数量已经下降了90%。
4. So far, no scientific studies have shown that shark fins are good for health.
到目前为止，还没有科学研究证明鱼鳍对人们的健康有好处。
5. Sharks may disappear one day if we do not do something to stop the sale of shark fins.
如果我们不采取措施来阻止这种鱼鳍买卖，鲨鱼可能有一天会消失。
【达标检测】
I. 根据句意及汉语提示填写单词。
1. I think it's __________ (残酷的) of them to shoot the animals.
2. With the development of ___________ (工业), it will cause some pollution problems.
3. Reading in the sun is ___________ (有害的) to your eyes.
4. The government has made some ____________ (法律) to protect the wild animals.
5. We should use some ____________ (科学的) ways to solve the problem.
II. 用括号内所给单词的适当形式填空。
6. We all support his _____________ (science) research.
7. This is an _____________ (danger) animal. We should try to save it.
8. Smoking is _____________ (harm) to your health. You must give it up.
9. In fact, about 70 million sharks are ______________ (catch) and traded every year.
III. 根据汉语意思完成句子，每空一词。
10. 保护海洋生态系统食物链的平衡很重要。
It’s very important to keep the balance of the ________ ________ in the ocean ecosystem.
11. 目前很多动物的数量在下降。
At present the number of many animals ________ ________.
12. 听！贾森在练歌房里引吭高歌。
Listen! Jason is singing ________ ________ ________ ________ his voice in the singing hall.
参考答案
【课前预习】
1. shark 2. fin 3. scientific 4. cruel 5. harmful 6. chain
7. ecosystem 8. industry 9. law
10. shark fin soup 11. at the top of the food chain 12. in the last 20 to 30 years
13. environmental protection groups 14. develop laws 15. the sale of shark fins
16. a bowl of shark fin soup 17. in the last 18. stop the sale of shark fins
【合作探究】
探究二
1. hear of 2. shark fin soup 3. a whole shark 4. a bowl of 5. cut off 6. throw…into 7. not only…but also 8. be harmful to
9. at the top of the food chain 10. in the ocean’s ecosystem
11. be harmful to 12. be endangered 13. the number of
14. reduce sth. by 15. in the last 20 to 30 years
16. environmental protection groups 17. develop laws 18. the sale of shark fins
19. so far 20. scientific research
探究三
1.1)
Para. 1 Talk about shark fin soup.
Para. 2. Sharks are endangered now.
Para. 3. How governments can help.
2)
Where shark fin soup is popular southern China
Number of sharks caught and traded every year 70 million
How governments can help Develop laws to stop the sale of shark fins
Two environmental groups against “finning” WildAid and the WWF
2. 1) TTFF
2) 1. realize 2. killing 3. cruel 4. cut off 5. throw
6. back 7. die 8. swim 9. harmful 10. top
11. drop 12. break 13. develop 14. save/protect
探究四
1. is harmful to；is bad for
2. the number of；a number of；A number of；the number of
3. endangered；dangerous；danger；in danger
dangerous；endangered; in danger；danger
【达标检测】
I. 1. cruel 2. industry 3. harmful 4. laws 5. scientific
II. 6. scientific 7. endangered 8. harmful 9. caught
III. 10. food chain 11. is dropping 12. at the top ofUnit 13 We’re trying to save the earth!
Section A3 (Grammar focus-4c)
【学习目标】
1. 学习并掌握新词汇：reusable，afford，transportation
2. 学习并会用以下常用表达：try to do sth.，used to do sth.， take part in， turn off，instead of，pay for，add up，afford to do sth.，not…any longer，take action，It's difficult for sb. to do sth.
3. 复习现在进行时，被动语态，现在完成时，情态动词，used to do的用法。
【学习重点】
复习语法
【学习难点】
正确运用语法
【课前预习】
一、用can，may，must，need或have to的适当形式填空。
1. You ___________ return the book to the library on time.
2. I ___________ find the way to the hospital. __________ you show me the way
3. —___________ I finish the work right now
—No, you ___________. You ___________ do it later.
4. He said he ___________ come tonight.
5. Her mother was ill. She ____________ stay at home and look after her.
6. It's time for class. You ____________ stop playing football or you __________ be late for class.
7. The cloud is lifting，so it ____________ be a rainy day tomorrow.
8. The desk is not dirty. You ____________ clean it.
9. —What is your mother going to do this Saturday
—I'm not sure. She ____________ go to see my grandmother.
10. If the traffic light is red, you _____________ cross the road. It’s dangerous.
二、用括号内所给单词的适当形式填空。
11. We don't need ____________ (work) today.
12. He doesn't dare _____________ (break) his promise.
13. Some students are used to _____________ (ask) their parents for help when they meet trouble.
14. There used _____________ (be) a quiet village here.
15. You will be used to _____________ (live) in the countryside.
16. All of us know that cotton can be used _____________ (make) cloth.
17. You used _____________ (go) to school by bike, didn't you
三、根据汉语意思完成句子，每空一词。
18. 这本书一定是汤姆的，他的名字在封面上。
This book ______ ______ Tom's. His name is on the cover.
19. 他可能被一个五岁的小男孩愚弄了吗？
______ ______ ______ true that he was fooled by a five-year-old boy
20. 你的车需要维修了。
Your car ______ ______.
21. 这种小刀是用来切东西的。
This kind of knife ______ ______ ______ ______ things.
22. 我年轻的时候常常打篮球。
I ______ ______ ______ basketball when I was young.
23. 他过去常花很多时间玩电脑游戏吗？
______ ______ ______ ______ ______ much time playing computer games
【合作探究】
探究一 仔细阅读课本P100，并在书上查找这些短语并标记。
1） be considered 被认为是
2） improve the environment 改善环境
3） can’t afford to do sth. 负担不起做某事
4） begin with small things 从小事做起
5） add up 加起来，聚少成多
6） use public transportation 使用公共交通
探究二 观察下列例句，总结语法规则。
1. 现在进行时
Now people are taking actions to save wild animals. Let’s join them.
Look! Kenny is swimming happily in the pool.
Listen to me carefully. I am talking about something very important.
Be quiet please! The baby is sleeping.
总结: 现在进行时表示：
谓语构成： +
标志性词汇：
现在分词的构成规则：
2. 现在完成时
He has kept this book for over two months. Please ask him to return it soon.
We have lived here since my little sister was born.
Have you ever been to Australia It’s a beautiful country.
He has already tried to solve the problem, but it didn’t work.
总结：现在完成时的用法：___________________________
谓语构成： +
标志性词汇：
过去分词构成规则：
3. 被动语态
Photos are shared online.
The video was sent out quickly and was seen by many people.
Teenagers should be allowed to make their own decisions.
总结：被动语态的构成： +
一般现在时的被动语态： +
一般过去时的被动语态： +
情态动词的被动语态： + +
4. 情态动词
Tracy could ride a bike when she was five years old.
You mustn’t play on the road. It’s too dangerous.
He can’t come back. He has gone to Hong Kong.
It’s raining now. I have to wait till it stops.
总结：情态动词有哪些____________________
用法：情态动词+
5. used to
James used to wake up late, but now he is used to getting up early.
Did Cherry use to live in Shanghai when she was a child
He didn’t use to be active. He was quite silent.
总结：used to 表示 ；后接
used to的否定句：
used to的一般疑问句：
be used to doing 表示：
探究三 知识链接
1. We can’t afford to wait any longer to take action!
afford v. 承担得起；提供, 给予
afford to do sth. (常与can, be able to连用) 买得起；有足够的……
e.g. We can’t afford to pay such a price. 我们付不起这个价钱。
Dancing affords us pleasure. 跳舞给我们带来快乐。
2. For example, you can save electricity by turning off the lights when you leave a room.
turn off 关掉
e.g. Please turn the television off before you go to bed.
睡觉前请关掉电视。
[拓展] turn相关短语
turn around 转身
turn up 调高（音量）
turn down 调低；拒绝
turn into 变成；进入
turn on 打开，发动
turn out to be 结果是
turn over 移交
【课时小结】
单词：reusable，afford，transportation
短语：try to do sth.，used to do sth.，is/are doing，be considered，take part in， turn off，instead of，pay for，add up，afford to do sth.，not…any longer，take action，It's difficult for sb. to do sth.
语法：现在进行时，被动语态，现在完成时，情态动词，used to do的用法。
【达标检测】
I. 根据句意及首字母或汉语提示填写单词。
1. The house is really expensive. I can't a__________ it.
2. How much did you p___________ for the computer
3. Remember to turn o___________ the light when you leave the room.
4. What do you think of the t____________ (交通运输) in your city
5. This kind of material is r_____________ (可重复使用的). Don't throw it.
II. 单项选择。
6. —Why don't you buy the computer
—It's too expensive. I can't ________ it.
A. afford B. sell C. borrow D. keep
7. —Would you like to ________ us in this topic
—Yes, I'd like to.
A. join B. join in C. take part in D. attend
8. Our government has to do something ________ our environment.
A. protect B. protected C. protecting D. to protect
9. Nobody is in the room. Please go and ________ the light.
A. turn on B. turn off C. turn down D. turn up
10. —How much is the ticket to Central Park
—A one-way ticket ________ $40，and you can ________ another $20 for a round trip.
A. costs；pay B. cost；spend C. pay；spend D. spends；pay
III. 根据汉语意思完成句子，每空一词。
11. 我至今还没有得到她的回复。
I have had no reply from her __________ ___________．
12. 最后，在一年以后，他不能再等了。
At last，after a year he could __________ wait __________ __________．
13. 星期天我们常回到自己的工厂帮忙。
On Sundays we used to go back to __________ ___________ in our factories.
14. 上周我们班三分之一的男生参加了跑步接力赛。
One third of the boys in my class ___________ __________ __________ the running relay race last week.
15. 我们必须采取行动阻止他们污染环境。
We ___________ ___________ ___________ __________ to stop them from polluting the environment.
【自我评价】
1. 本课我学会了什么？
____________________________________________________
2. 通过本课的学习，我还有哪些疑问？
____________________________________________________
参考答案
【课前预习】
1. must 2. can't; Could/Can; 3. Must; needn’t; may/can 4. couldn't
5. had to 6. must; may 7. can't 8. needn't 9. may/might
10. mustn't 11. to work 12. to break 13. asking 14. to be
15. living 16. to make 17. to go
18. must be 19. Can it be 20. needs repairing
is used to cut 22. used to play 23. Did he use to spend
【合作探究】
探究二
1. 总结: 现在进行时表示：表示现在或现阶段正在发生或进行的动作。
谓语构成：am / is/ are+动词-ing形式
标志性词汇：now, at the (very) moment, for the time being, at present, 及Look! Listen! ……
现在分词的构成规则：
1) 一般情况下直接加ing。
2) 以不发音的字母e结尾的单词, 去掉字母e, 再加-ing。
3) 以一个辅音字母结尾的重读闭音节词，先双写末尾的辅音字母, 再加-ing。
2. 总结：现在完成时的用法：表示过去发生的动作对现在产生的影响或结果。
谓语构成：have / has +动词过去分词
标志性词汇：already、yet、just、never、ever、before、since、for……
过去分词构成规则：
1) 一般情况下, 在动词后加-ed。
2) 在以- e结尾的动词后只加-d。
3) 在以辅音字母加y结尾的动词, 应将y改为i再加ed
study→ studied carry→ carried try→ tried
4) 以重读闭音节结尾的动词, 要双写末尾的辅音字母再加-ed。
stop→ stopped drop→ dropped
3. 总结：被动语态的构成：be + 动词过去分词
一般现在时的被动语态：am/is/are + 过去分词
一般过去时的被动语态：was/were+过去分词
情态动词的被动语态：will/ shall等/be going to+be+过去分词
4. 总结：情态动词有哪些：can, may, must, need, have to, could, should, ought to 等
用法：情态动词+动词原形
5. 总结：used to 表示过去常常，后接动词原形。
used to 的否定句：didn’t use to …
used to的一般疑问句：Did you use to...
be used to doing 表示习惯做某事
【达标检测】
1. afford 2. pay 3. off 4. transportation 5. reusable
6-10 AADBA
11. so far 12. not; any longer 13. help out 14. took part in
15. have to take actionUnit 13 We’re trying to save the earth!
Section A1 (1a-2d)
【学习目标】
1．学习并掌握下列单词：litter，bottom，fisherman，coal, ugly，advantage，
cost，wooden，plastic
2. 能正确使用以下常用表达：
the bottom of，be full of，used to do sth.，play a part in doing sth.，clean it up，be badly polluted，too much rubbish and waste，turn…into
3. 复习used to的用法，现在进行时和一般现在时。
4. 通过听力练习了解如何解决水污染问题，以及保护水资源的重要性。
5. 结合主题图和听力内容开展对话，以便对单元的话题词汇和语言结构进 行语言简单的输出。
6. 树立环境危机意识，学会关注环境、保护环境。明白保护环境是每个人的职责。
【学习重点】
复习相关知识
【学习难点】
用所学知识谈论污染和环境保护
【课前预习】
一、根据中文意思写出下列重点单词。
1. v. 乱扔　n. 垃圾；废弃物 ____________
2. adj. 丑陋的；难看的___________
3. n. 优点；有利条件____________
4. v. 花费　_____________
5. adj. 木制的；木头的_____________
6. n. 底部；最下部____________
7. n. 渔民；钓鱼的人 _____________
8. n. 煤；煤块______________
9. adj. 塑料的n. 塑胶_____________
10. n. 外卖食物_____________
11. n. 垃圾箱_______________
二、认真阅读课文，找出下列重点短语。
12. 在河床底部 __________________
13．充满了垃圾 __________________
14．把垃圾扔入河中________________
15．尽一份力清理干净它 _________________
16．使空气中充满了黑烟 __________________
17．减少空气污染 __________________
18．产生影响 __________________
三、用以上重点短语完成下列句子。
19. 这个城镇里的每个人都应当尽一份力清理干净它！
Everyone in this town should _______ _______ _______ _______ ________
it up!
20. 为了减少空气污染，我们应该乘坐公共汽车或地铁，而不是开车。
_______ _______ _______ _______ _______，we should take the bus or subway instead of driving.
21. 因此，我们齐心协力就能带来变化，创造更加美好的未来！
So together，_______ _______ _______ _______ _______ _______ and lead
to a better future!
【合作探究】
探究一、 阅读课本P97-98，学习下列短语并在书中标记。
1) environmental protection 环境保护 2) be full of 充满，装满了
3) no more 不再 4) write to sb. 给某人写信
5) ask sb. to do sth. 要求某人做 6) used to be 过去是
7) throw litter 乱扔垃圾 8) play a part in sth./ doing sth. 参与
9) clean up 打扫，清理 10) land pollution 土地污染
11) air pollution 空气污染 12) noise pollution 噪声污染
13) water pollution 水污染 14) be badly polluted 被严重污染
15) these days 如今 16) burn coal 燃煤
17) turn ...into... 把……变成…… 18) solve problems 解决问题
19) cut down 减少 20) instead of 而不是，代替
21) buy takeaway food 买外卖食品 22) remember to do sth. 记得要做某事
23) throw rubbish 乱扔垃圾 24) public places 公众场合
25) make a difference 产生影响 26) lead to 带来，导致
探究二、浏览P97 1a，试着将污染分类，可以适当的补充你知道的污染类别。
The kinds of pollution
Noise pollution Air pollution Water pollution
machines, crowds, vehicles … burning, smoking unclear waste disposal … sewage, industrial waste pesticides …
探究三、播放录音，完成1b、2a、2b的练习。
探究四、阅读课本P98 2d，试着回答下面问题。
How can we cut down air pollution according to Jason
What is Susan’s advice for waste pollution
Do you think protecting the environment is the responsibility of the government Why
探究五、知识链接
1. Well, to cut down air pollution, we should take the bus or subway instead of driving.
嗯，为了减少空气污染，我们应该乘坐公共汽车或地铁，而不是开车。
cut down 把……砍倒〔割掉〕 减少, 降低；
【小小翻译官】
如果你想攒钱，你应该减少不必要的开支。
If you want to save money, you should unnecessary expenses.
我的老师让我把这篇文章删减到一千字。
My teacher asked me to to 1,000 words.
价钱已经足够低了，你不能再砍价了。
The price is low enough. You can't .
树木对我们有益，不要砍伐它们了。
Trees are beneficial to us. Don't .
2．It's good for health and it doesn't cost anything！它有益于健康，而且不用花钱！
【小小翻译官】
sth. cost(s) (sb.) some money某物花费(某人)一些钱
某人花费时间/金钱在某事上sb. spend(s) some time/money on sth.
某人花费时间/金钱做某事sb. spend(s) some time/money (in) doing sth.
做某事花费某人一些时间It takes sb. some time to do sth.
某人为某物付费sb. pay(s) some money for sth.
语境串记(完成句子)
My classmate _______ a whole afternoon (in) buying a computer yesterday, and it _______ him 3,500 yuan. I wanted to have one, too. But I didn't have enough money. So it _______ me more time to get a cheaper one. I only _______ 2,000 yuan for it.
3．So together, our actions can make a difference and lead to a better future!
因此，我们齐心协力就能带来变化，创造更加美好的未来！
【小小翻译官】
有作用；有影响 _____________________ 做鬼脸 _____________________　
交朋友_____________________　 整理床铺_____________________　
腾出地方_____________________ 犯错误_____________________
谋生_____________________　 制造噪声_____________________
做决定_____________________ 赚钱_____________________
惹麻烦_____________________
【课时小结】
Words: litter，bottom，fisherman，coal, ugly，advantage，cost，wooden，plastic
Phrases: the bottom of，be full of，used to do sth.，play a part in doing sth.，clean it up，be badly polluted，too much rubbish and waste，turn…into
What we should do to reduce air pollution: take the bus or subway instead of driving, ride a bike.
What we should do to cut down waste pollution: bring a bag to go shopping, don’t take wooden chopsticks or plastic forks when buying takeaway food, throw rubbish in bins
【达标检测】
I. 根据句意及首字母提示填写单词。
1. We can clearly see fish swimming at the b_________ of the river.
2. The girl seldom goes outside because of an u_________ scar (伤疤) on her face.
3. The fewer p _________ bags we use, the more beautiful our earth will be.
4. The villagers used to burn c_________ to get warm.
5. Don't l_________ waste things everywhere.
II. 用括号内所给单词的适当形式填空。
6. There is a _________ (wood) table in the middle of the room.
7. There used to be many __________ (fisherman) in the village.
8. Everyone in the class is asked to play a part in __________ (keep) the classroom clean.
9. Can you tell me the machine's ___________ (advantage)
10. Her ____________ (act) tell us a lot about her purpose.
III. 根据汉语意思完成句子，每空一词。
11. 这个房间里将举行一个聚会，请在聚会后把房间打扫干净。
There will be a party in this room. Please _______ it _______ after the party.
12. 这个篮子里装满了苹果。
This basket _______ _______ _______ apples.
13. 我们的行动会带来不同，并引领一个更好的未来。
Our actions can _______ _______ _______ and lead to a better future.
14. 种植更多的树木可以减轻空气污染。
Planting more trees can _______ _______ air pollution.
15. 这座城市里的每个人都应该在保护环境方面出一份力。
Everyone in the city should _______ ______ _______ _______ _______ the environment.
【自我评价】
1. 本课我学会了什么？
______________________________________________________
2. 通过本课的学习，我还有哪些疑问？
______________________________________________________
参考答案：
【课前预习】
1. litter 2. ugly 3. advantage 4. cost 5. wooden
6. bottom 7. fisherman 8. coal 9. plastic 10. takeaway 11. bin 12. at the bottom of the river 13. be full of the rubbish
14. throw litter into the river 15. play a part in cleaning it up
16. fill the air with black smoke 17. cut down air pollution
18. make a difference 19. play a part in cleaning
20. To cut down air pollution
21. our actions can make a difference
【合作探究】
探究四
1. We should take the bus or subway instead of driving.
2. Bring bags to go shopping.
探究五
1. cut down；cut the article down；cut it down；cut them down
2. spent, cost, took, paid
3. make a difference make a face
make friends make the bed
make room make a mistake
make a living make noise　
make a decision make money　
make trouble
【达标检测】
1. bottom 2. ugly 3. plastic 4. coal 5. litter
6. wooden 7. fishermen 8. keeping 9. advantages 10. actions
11. clean…up 12. is full of 13. make a difference
14. cut down 15. play a part in protectingUnit 13 We’re trying to save the earth!
Section B3 (3a-Self check)
【学习目标】
1．复习并巩固本单元出现的重点词汇和短语。
2．学习并掌握重点句型：
1) Which parts may be less nice and need to be improved
2) Give suggestions or possible ways to solve the problems.
3. 学会写关于所在城市环境问题以及个人建议的信件。
【学习重点】
复习现在进行时、used to句型、被动语态、现在完成时和情态动词
【学习难点】
读写任务结合锻炼写作及对语言综合运用能力
【课前预习】
一、翻译下列短语:
1. 环境问题 _________________
2. 市长 ______________
3. 公共交通 _________________
4. 水污染 _________________
5. 陆地污染 _________________
6. 变得越来越糟糕 ___________________
7. 减少污染 _______________
二、阅读103-104页的课文，翻译句子。
8. 空气污染越来越严重了。
________________________________________
9. 我们已经看到了环境的许多变化。
________________________________________
【合作探究】
探究一 Let’s collect words, phrases and sentences.
1. I can write. (我会写)
翻译下列短语：
1) 有一个好的环境 _____________________
2) 有待提高 _____________________
3) 变得越来越严重 _____________________
4) 乘坐公共交通工具 _____________________
2. I can translate. (我会译)
1) 他给父母带来很多烦恼。
He ______ his parents ______ ______.
2) 我的表需要修了。
My watch needs ______.
3) 空气污染现在变得越来越严重了。
The air pollution is ______ ______ and ______.
4) 在环境方面我们已经看到了很多变化。
We have ______ ______ ______ in the environment.
探究二 知识链接
1. Which parts need to be improved
need作实义动词，意为“需要”，后接名词、代词、动词-ing形式及带to的动词不定式作宾语。need后面接动词-ing形式时，动词-ing形式表被动, 此时主语常为某物。
其用法如下：
1) need sth.“需要某物”
e.g. I need your help. 我需要你的帮助。
2) need to do sth. “需要做某事”
e.g. Do you need to go at once 你需要马上去吗？
3) need doing=need to be done“（某事）需要被做”
e.g. The bridge needs repairing. = the bridge needs to be repaired.
这座桥需要被修理了。
【拓展】
1) need还可用作名词，意为“需要” 。
e.g. A friend in need is a friend indeed.
2) need作情态动词时，意为“需要；必须”，无人称或数的变化，后接动 原形。
3)由need引出的一般疑问句，肯定回答常用must或have to，否定回答常用needn’t。
e.g. —Need I answer the question
—Yes, you must./ Yes, you have to./ No, you needn’t.
2. The air pollution is getting worse and worse.
worse and worse “越来越糟”，其结构为：比较级+ and+比较级或more and more+原级（多音节或部分双音节词），意为“越来越……”。
e.g. He is getting taller and taller.
The flower are more and more beautiful.
探究三 写作专题
【单元写作目标】
本单元的话题是“Protecting the environment(保护环境)”，讨论了各种污染及其解决办法。本话题常见的命题方式有提示性作文和看图作文等，体裁通常为记叙文、议论文等。
单元写作素材
(一) 单元话题短语积累
1. 不要乱扔垃圾 ________________
2. 成立；建立 ________________
3. 采取行动 ________________
4. 关掉 ________________
5. 在……中起作用 ________________
6. 打扫 ________________
7. 好好利用某物 ________________
(二) 单元话题句子积累
8. 我们的环境正变得越来越糟。
Our environment _________ _________ _________ _________ _________.
9. 它不仅可以保护环境，而且对我们的健康有好处。
It _________ _________ can protect the environment，_________ _________ _________ _________ _________ our health.
10. 保护环境是每个人的责任。
_________ _________ _________ _________ to protect the environment.
话题范文剖析
假如你校英文报近期开展“保护环境，从我做起”的主题演讲活动，要求每位学生写一封倡议书，号召全校师生从小事做起，维护我们赖以生存的环境。请你据此写一封英文倡议书。
要求：
1．语句通顺，语法正确，可适当发挥；
2．词数80左右，开头已给出，不计入总词数。
◆◆审题指导
1．文体：应用文(倡议书)
2．时态：一般现在时
3．注意事项：注意段落布局，恰当地使用复合句、连接词，增加得分点。
◆◆范文欣赏
Dear teachers and students，
A clean environment can help people feel happy and healthy. But now our environment has become worse and worse. So how can we help to protect it Here are some ways.
First we can stop driving our private cars. We can go to school or work on foot or by bus. It not only can protect the environment，but also is good for our health. Second, we are supposed to sort the rubbish into different kinds because some can be reused or recycled. Third，we should turn off the lights when leaving a room. What's more，stop littering! It's necessary to put things you don't need in the bin.
There's a lot for us to do. I think if everyone does something，our environment will become better and better.
单元写作练笔
Write a letter to the city mayor about the problems and your suggestions.
In your letter, describe the environmental problems in your city/ town.
What are the problems
Where are they
What or who is causing these problems
Then, give suggestions or possible ways to solve the problems.
要求：
1．包含所有提示内容，可适当发挥；
2．不少于80词。
_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
【课时小结】
1. 环境问题 environmental problems
2. 市长 city mayor
3. 公共交通 public transportation
4. 水污染 water pollution
5. 陆地污染land pollution
6. 变得越来越糟糕 get worse and worse
7. 减少污染cut down on pollution
10. The air pollution is getting worse and worse.
We have seen many changes in the environment.
【达标检测】
Ⅰ. 单项选择。
( ) 1.You _______ drive your car so fast. It’s very dangerous.
A. wouldn’t B. shouldn’t C. couldn’t D. mightn’t
( ) 2. The buildings _______ by the government last year.
A. was pulled down B. are pulled down
C. were pulled down D. will be pulled down
( ) 3. Mary _______ to school by bike when she lived in China.
A. use to go B. was used to go C. was used going D. used to go
( ) 4. The pollution is serious. We must do something to make our environment _______.
A. cleaning B. cleaner and cleaner
C. more and more clean D. cleaning and cleaning
( ) 5. He likes _______ furniture, so everything in his room is made of _______.
A. wooden; wooden B. wood, wood
C. wooden, wood D. wood, wooden
Ⅱ. 用所给单词的适当形式填空。
1. As Chinese, we should take active part in the __________ (protect) of the environment.
2. We can make our lives better and easier with a little __________ (create).
3. The man sailed across the sea alone by his __________ (wood) boat.
4. We should protect the environment by the ___________ (science) method.
5. You shouldn’t wait until too late to understand the __________ (important) to protect the environment.
Ⅲ. 根据汉语提示完成英语句子，每空一词。
1. 你能给出一个可能处理这些问题的办法吗？
_______ you please give _______ ways to _______ the problems
2. 我们的河流被工厂污染了。
Our rivers _______ _______ _______ factories.
3. 这是一张木床。
This is a _______ _______.
4. 他们用旧牛仔制作了许多手提袋。
They _______ old jeans _______ _______ many handbags.
【自我评价】
1. 本单元我学会了什么？
______________________________________________________
2. 通过对本单元的学习，我还有哪些疑问？
_______________________________________________________
参考答案
【课前预习】
一、 1. environmental problems
2. the city mayor
3. public transportation
4. water pollution
5. land pollution
6. get worse and worse
7. cut down on pollution
二、8. The air pollution is getting worse and worse.
9. We have seen many changes in the environment.
【合作探究】
探究一
1. 1) have a good environment 2) need to be improved
3) get worse and worse 4) take public transportation
2. 1) caused；much trouble 2) repairing
3) getting worse；worse 4) seen many changes
探究三
1. stop littering anywhere 2. set up 3. take action 4. turn off 5. play a part in
6. clean up 7. put sth. to good use 8. is becoming worse and worse
9. not only；but also is good for 10. It is everyone’s duty
探究三
略
【达标检测】
Ⅰ. 1-5 BCDBC
Ⅱ. 1. protection 2. creativity 3. wooden 4. scientific 5. importance
Ⅲ. 1. Could, possible, solve 2. are polluted by 3. wooden bed 4. use, to make

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