资源简介

(共17张PPT)
Section B（第三、四课时）
1.Recycling paper is really easy.回收废纸真的很容易。
（1）recycle是cycle加前缀re-构成的派生词，前缀re-意为“再”，通常加在名词、动词前。例如：
view（观察） v. →review（复习）
tell（讲） v. →retell（复述）
union（团结） n. →reunion（重聚）
start（开始）n. →restart（重新开始）
（2）句中的recycling是动名词，可以充当句子的主语、表语、宾语等成分。动名词短语作主语时谓语动词用单数形式。例如：
Seeing is believing.眼见为实。
Helping others is helping yourself.帮助别人就是帮助自己。
2.Amy isn’t the only one who is good at recycling. 埃米并不是唯一善于重复利用的人。
句中the only one是先行词，指人。当先行词前有the only时，若先行词是人，关系代词可用who或that；但若先行词是物，则只能用that，不能用which。例如：
She was the only person in her office who/that was invited to the party.她是办公室里唯一被邀请参加聚会的人。
The only thing that matters is what you choose to be now.唯一重要的是你现在选择做什么。
This is the only way that we can solve the problem.这是我们解决这个问题的唯一办法。
【拓展】当先行词前有the only one of修饰，先行词作定语从句的主语时，定语从句的谓语动词要用单数形式；如果没有the only，只有one of修饰先行词时，则谓语动词用复数形式。例如：
Nancy is one of the girls who like playing tennis. 南希是喜欢打网球的女孩之一。
This is one of the best novels that were published last year.这是去年出版的最好的小说之一。
3.She opened a small shop where she sells her bags, and she has also set up a website to sell them online. 她开了一家小店销售她的包，另外还建了一个网站在线售卖。
where she sells her bags是定语从句，作先行词shop的定语。where引导定语从句时，其先行词是表示地点的名词，它在定语从句中作地点状语。例如：
This is the factory where her mother worked last year.这就是她母亲去年工作的工厂。
【拓展】where引导状语从句时，前面没有表示地点的先行词。例如：
Wuhan lies where the Changjiang River and the Hanjiang River meet.武汉位于长江和汉江的汇合处。
基础达标
一、根据汉语提示，写出正确的单词完成句子。
1.The table is made of ______（金属） and wood.
metal
2.George Washington was the first _________（总统） of the USA.
president
3.Lu Xun is famous for his great _______（作品） as a great writer.
works
4.In fact, almost all the waste can be ________（再利用）.
recycled
5.We decided to meet each other at the school _____（大门） after
class.
gate
二、用所给单词的正确形式填空。
1.—Could you help me clean the floor, Bob
—Wait a moment. I _____________（search） for some information
about the World Cup.
am searching
2.—I ______________（expect） you here, but you didn’t come.
—I’m terribly sorry. I was so busy that I forgot.
was expecting
3.Millie ___________（work） in this factory since 1990.
has worked
4.—When will you give the novel back to me
—Sorry, I ________________（finish） it yet. How about this
afternoon
have not finished
5.This is the only one of the action movies that _________（show）
this year.
is shown
三、单项选择。
1.We ________ try our best to protect the environment.( )
B
A.may B.should C.mustn’t
2.Mrs. Brown doesn’t like to throw ________ old things though they
are useless.( )
C
A.up B.off C.away
3.The house is too old to live in. You’d better ________.( )
A
A.pull it down B.pull down it C.pull it up
4.That is the only thing ________ we can do now.( )
B
A.how B.that C.which
5.Not only ________ dance well, but she sings very well.( )
A
A.does she B.she does C.does
&3& not only位于句首引起倒装。
6.Food safety is important. Rules ________ to protect people from
food pollution.( )
B
A.must make B.must be made C.can’t
7.—Whose dress is this
—It ________ be Mary’s. It’s ________ small for her.( )
B
A.can’t; too much B.can’t; much too C.mustn’t; too much
8.This is the factory ________ they visited last Friday and is the one
________ my grandfather once worked.( )
C
A.where; that B.that; that C.that; where
9.—How does Nancy usually go to school
—She ________ take a bus, but now she ________ there to lose
weight.（ )
B
A.was used to; is used to walk
B.used to; is used to walking
C.used to; is used to walk
10.Please ________ the gas after you finish the cooking.( )
C
A.turn down B.turn up C.turn off
能力训练
四、从方框中选择适当的单词，并用其正确形式填空。
help warm as pollute that when
away keep use need
Our earth is in trouble. Our drinking water is becoming dirtier,
and the air is not as clean 1. . before. People and factories are
2. . the air, rivers and lakes and seas. You may think that
there is nothing you can do to help. That’s not true. There are many
things you can do to 3. . the earth.
as
polluting
help
Cars burn gasoline. This will produce a lot of CO2 into the air.
Some people believe that too much CO2 is making the earth
4. . than ever. They think CO2 thins the clouds above us. The
clouds keep us 5. . from the strongest sunlight. So try to walk,
ride a bike or take a bus. And if you drive a car, drive at a steady
speed. This can save some gasoline.
The biggest energy use at home is for 6. . warm and cool.
So turn the air conditioner off 7. . you don’t need to use it. Use
lights that save energy.
warmer
away
keeping
when
help warm as pollute that when
away keep use need
Use fewer things that cannot be used again. When you buy
something, consider those made from things that can be 8. . again
first.
A lot of water is 9. . for a shower. In one week an
American family uses as much water for showers as a person drinks in
three years! Buy a waterworks 10. . uses less water, or take
shorter showers. This can cut the use of water.
used
needed
that
help warm as pollute that when
away keep use need(共24张PPT)
Unit 13 We’re trying to save the earth!
知识概要
课时讲练
1.But it used to be so clean!但它过去是那么干净！
used to意为“过去常常（现在不这样了）”，其中to为动词不定式标志，后接动词原形，其否定形式为didn’t use to，疑问句形式为“Did...use to... ”。例如：
I used to play football with my classmates after school. 我过去放学后和同学们一起踢足球。
Mr. Wang didn’t use to drive to work, because he didn’t have a car.王先生过去不开车去上班，因为他没有车。
Did you use to go to school by bike 你过去常骑自行车上学吗？
Section A（第一、二课时）
【拓展】get/be used to doing意为“习惯于”，其中to是介词。注意be used to do中be used是被动语态形式，意为“被用来……”，这时to是不定式标志。例如：
He didn’t use to like playing tennis, but now he’s interested in it.他过去不喜欢打网球，但现在对它很感兴趣。
Wood is often used to make desks and chairs.木头常常被用来制作桌椅。
2.It’s good for health and it doesn’t cost anything！ 它对健康有益，并且不花一分钱！
cost意为“花费”，常用sth. cost（s） sb. sth.这一结构，主语是物。例如：
The bike cost me nothing. My uncle sent it to me.那辆自行车没花我一分钱，是我叔叔送我的。
【辨析】cost，take，spend与pay表示“花费”的用法区别。
①cost多指花费钱，主语通常是物。
②take指花费时间，常用于“It takes sb. some time to do sth.”句型。
③spend可以指花费金钱，也可以指花费时间，主语通常是人，构成“Sb. spend（s） time/money on sth. /（in） doing sth.”句型。
④pay表示“付款，付出代价”，主语是人，常用于pay for结构，后面接事物作宾语。
例如：
It took me a lot of time to read stories. = I spent a lot of time（in） reading stories.我花了大量时间阅读故事。
It took me half an hour to write the letter.= I spent half an hour（in） writing the letter.我花了半个小时写这封信。
The English-Chinese dictionary cost me fifty yuan.
= I paid fifty yuan for the English-Chinese dictionary.
= I spent fifty yuan on the English-Chinese dictionary.我花了50元钱买这本英汉词典。
3.This is not only cruel, but also harmful to the environment. 这不但残忍，而且对环境有害。
（1）harmful意为“有害的”，由词根名词harm（伤害，损害）加词尾-ful构成。-ful是形容词后缀，通常加在名词词尾。例如：
color（颜色） →colorful（多彩的）
beauty（美丽）→beautiful（美丽的）
use（用途） →useful（有用的）
mean（意思） →meaningful（有意义的）
（2）be harmful to意为“对……有害的”，to后接受害的对象。例如：
Reading in the sun is harmful to your eyes.在阳光下看书对你的眼睛有害。
Everyone knows that smoking is harmful to people’s health. 每个人都知道吸烟有害健康。
4.Have you ever taken part in an environmental project 你曾经参加过环境保护项目吗？
take part in意为“参加”，常指参加某项群体活动，并在活动中发挥积极的作用。例如：
They all dressed up to take part in the New Year’s party.他们都穿上盛装，去参加新年晚会。
【辨析】join与join in的用法区别。
①join通常指“参加或加入某个组织或社团”，并成为其中一员。例如：
I’d like to join the dance club. 我想加入舞蹈俱乐部。
②join in表示“参加”时后面常接表示比赛、活动等的名词。join sb. in（doing） sth. 表示“和某人一起做某事”。例如：
May I join in the discussion 我可以参加讨论吗
Will you join us in playing volleyball on Saturday afternoon 星期六下午你和我们一起打排球好吗
基础达标
一、根据汉语提示，写出正确的单词完成句子。
1.Sally found her keys at the _______（底部） of her bag.
bottom
2.We should take cloth bags when shopping instead of _______（塑料
的） bags.
plastic
3.Miss Qin can’t _______（买得起） such a big house.
afford
4.Don’t _____（乱扔） waste things everywhere.
litter
5.Keeping the animals in the zoo is very ______（残酷的）.
cruel
6.No matter who you are, you must obey the _____（法律）.
law
二、用所给单词的正确形式填空。
1.Tourism has become a big ________（industrial） in my hometown.
industry
2.We must take _______（act） to protect our environment.
action
3.There used to be lots of __________（fisherman） living in the
village near the sea.
fishermen
4.There is a ________（wood） bridge over the river near my house.
wooden
5.These scientists are busy doing some _________（science） studies.
scientific
三、单项选择。
1.Using too many plastic products is harmful _______ our
environment.( )
B
A.in B.to C.on
2.I don’t like the jacket because it looks _______ on me.( )
B
A.nice B.ugly C.thin
3.—Your dress looks nice.
—It’s made _______ silk. And it was made _______ Hangzhou.( )
C
A.from; by B.in; by C.of; in
4.—How much does the computer ________
—Not much. It’s just a second-hand one.( )
B
A.pay for B.cost C.spend
&1& cost多指花费钱，主语是物；take指花费时间；spend指花费时间/金钱，主语通常是人；pay表示“付款，付出代价”，主语是人，常用于pay for结构。
5.Internet shopping has many ________, of which the most important
one is convenience.( )
A
A.advantages B.appearances C.agreements
6.Why not ________ a swimming club ( )
B
A.take part in B.join C.to join in
7.People ________ wait until the traffic light becomes green. That’s the
traffic rule.( )
C
A.can B.may C.must
8.Remember to ________ the lights when you leave the
classroom.( )
C
A.take off B.get off C.turn off
9.—How long have you ________ your watch
—For two years.( )
B
A.bought B.had C.borrowed
&2& 与表示一段时间的状语连用要用延续性动词。
10.The Olympic Games ________ every four years.( )
C
A.are holding B.were held C.are held
能力训练
四、从方框中选择恰当的选项，补全对话。有一项多余。
A: Hi, Jack! 1.(. . .). .
B: Yes. What’s up
B
A: I’d like to take you out for dinner. There is a newly opened
restaurant near my home. The food there tastes delicious.
A. But do you know that they are in danger
B. Are you free this evening
C. I’m killing a whole shark each time I drink a bowl of shark fin soup
D. That would be nice.
E. That’s all right.
F. Refusing to drink shark fin soup is a good way to protect sharks.
B: 2.(. . .). . What’s the special dish there
D
A: Shark fin soup. It’s said they cook very good shark fin soup. So
I’d like to have a taste with you.
B: Oh. We’d better not drink the soup. Do you know that you are
killing a whole shark each time you drink a bowl of shark fin soup
A. But do you know that they are in danger
B. Are you free this evening
C. I’m killing a whole shark each time I drink a bowl of shark fin soup
D. That would be nice.
E. That’s all right.
F. Refusing to drink shark fin soup is a good way to protect sharks.
A: 3.(. .). . Is that so You’re kidding!
B: That’s true. Without a fin, a shark can’t swim and soon dies. The
shark is one of the strongest animals in the sea. Do you know
A: Yes, I do. Almost no animals are stronger than sharks in the sea.
B: Yes. 4.(. .. .). .
A: I don’t know. How can they be in danger
C
A
A. But do you know that they are in danger
B. Are you free this evening
C. I’m killing a whole shark each time I drink a bowl of shark fin soup
D. That would be nice.
E. That’s all right.
F. Refusing to drink shark fin soup is a good way to protect sharks.
A: I don’t know. How can they be in danger
B: Around 70 million sharks are caught and traded for shark fins
every year.
A: That’s really surprising. It’s time for us to do something to protect
them.
B: Yes. 5.(. . .). .
A: I agree with you. I’ll never drink shark fin soup.
F
A. But do you know that they are in danger
B. Are you free this evening
C. I’m killing a whole shark each time I drink a bowl of shark fin soup
D. That would be nice.
E. That’s all right.
F. Refusing to drink shark fin soup is a good way to protect sharks.(共26张PPT)
Self Check（第五课时）
本单元以“保护环境”为话题，复习了现在进行时、现在完成时、used to的用法、情态动词的用法和被动语态。要求能够用学过的词汇表达保护环境的想法或陈述与保护环境有关的事实。
1.教材中出现的相关句型：
（1）People are also littering in public places like parks. 人们也在像公园这样的公共场合乱扔垃圾。
（2）Well, to cut down air pollution, we should take the bus or subway instead of driving. 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。
（3）It’s good for health and it doesn’t cost anything！ 它对健康有益，并且不花一分钱！
（4）The river used to be so clean. 这条河过去非常干净。
（5）The air is badly polluted. 空气被污染得很严重。
（6）We should help save the sharks. 我们应该帮助拯救鲨鱼。
2.拓展的常用句型：
（1）I had to stay at home to look after the young children. 我只好待在家里照看小孩。
（2）We have completed about 80% of the work so far. 我们目前已经完成了80%的工作。
（3）I used to like reading books, but now I like playing the violin. 我过去喜欢读书，但现在我喜欢拉小提琴。
（4）Remember to turn off the lights when you go out. 出去的时候别忘了关灯。
（5）One of the simplest ways to protect the earth is to plant more grass and trees. 保护环境最简单的办法之一就是多种草多栽树。
（6）We should try our best to save the earth. 我们应该尽力保护地球。
能力训练
一、从方框中选择恰当的选项，补全对话。有一项多余。
A: Hi, Sophie! It’s a nice day, isn’t it
B: Yes, it is. 1.(. .. .). .
A: I plan to visit my grandparents in the countryside.
B: Really Why do you want to live in the countryside
C
A. Why do you think so
B. Thank you very much.
C. What are you going to do during the National Day holiday
D. How do you know that
E. I think I should also make an animal friend.
F. Because of too much noise in the city.
A: 2.(. .. .). . I like a quiet place. What’s more, there are many green
plants in the countryside. I like plants.
B: I also like plants, but I like animals better.
A: 3.(. .. .). .
F
A
A. Why do you think so
B. Thank you very much.
C. What are you going to do during the National Day holiday
D. How do you know that
E. I think I should also make an animal friend.
F. Because of too much noise in the city.
B: Because animals give us joy and help us do some useful things.
They are our friends.
A: 4.(. . .). .
B: Enjoy yourself in the countryside.
A: 5.(. . .). .
E
B
A. Why do you think so
B. Thank you very much.
C. What are you going to do during the National Day holiday
D. How do you know that
E. I think I should also make an animal friend.
F. Because of too much noise in the city.
素养提升
二、完形填空。
There was once a little grey planet. It was very sad. The people living there hadn’t looked after it, though they had all the . .1. . you could ever need because of the rapid development of technology. They had polluted the whole planet so seriously with . .2. . that there were no plants or wild animals left.
One day, a little boy was walking on the planet when he passed a cave and noticed a small red flower inside.
The flower was very sick—almost dying, so the boy . .3. . dug up the flower with roots, soil and everything. Then he started looking for a place where he could look after it. He searched all over the planet but everywhere was so . .4. . that there was no place for the flower to live. Then he looked up at the sky and saw the moon. “Maybe the flower can survive there,” thought the boy. . .5. . the little boy put on his astronaut suit, and climbed into a spaceship. He put the little red flower in the back, and then went to the moon.
Far from all that pollution, the flower started to . .6. .. The flower was so well cared for that it started producing seeds soon, . .7. . others, and these other flowers spread onto other flowers. Before long, flowers completely covered the moon, which looked very . .8. ..
The earth on which we live has also been . .9. . in a very bad way. If we don’t look after it, maybe someday we will also only be able to plant flowers on the moon. Do you want that day to . .10. .
1.( ) A.explanations B.instructions C.inventions
C
2.( ) A.air B.rubbish C.water
B
3.( ) A.carefully B.excitedly C.easily
A
4.( ) A.wet B.deep C.dirty
C
5.( ) A.Though B.So C.But
B
6.( ) A.grow B.clean C.refuse
A
7.( ) A.taking care of B.taking the place of C.giving birth to
C
8.( ) A.round B.beautiful C.wide
B
9.( ) A.expected B.decorated C.polluted
C
10.( ) A.start B.come C.disappear
B
三、阅读理解。
How do you deal with plastic bags from the supermarkets Throw them away or recycle them How about eating them
The bags are no harmful to the environment. Humans and animals can safely eat them. Indian company EnviGreen has made a bag with natural materials. It looks and feels just like plastic, but can break down easily.
Ashwath Hedge who set up the EnviGreen company spent four years doing experiments（实验） with 12 natural materials. They include potato, corn, vegetable oil and banana. He made the material into liquid（液体） and used the liquid to make the bag.
Although the EnviGreen bag is more expensive than a common plastic bag, it has many advantages. According to the Wall Street Journal, it takes 1,000 years for common plastic bags to break down. But an EnviGreen bag can naturally break down in less than 180 days. It also breaks down in less than a day in water, and in less than a
minute in boiling water. Hedge was happy to show it in his interview—he put an EnviGreen bag in water and ate it with a smile.
There are more than 15,000 tons of plastic waste in India every day. But only 9,000 tons are processed. In China,3 billion plastic bags are used every day. Maybe the EnviGreen bag could be a solution（解决办法） to the world problem of plastic pollution.
根据短文内容，选择正确答案。
( ) 1.According to Paragraph 2,we can know ________.
B
A.the EnviGreen bag can not break down
B.the EnviGreen bag is made from natural materials
C.EnviGreen is an English company
( ) 2.What’s the main idea of Paragraph 3
B
A.What Hedge thinks of the new bag.
B.How Hedge makes the EnviGreen bag.
C.Who sets up the EnviGreen company.
( ) 3.The underlined sentence in Paragraph 4 shows that the Envi Green
bag ________.
A
A.is safe and can break down quickly
B.is useful although it is more expensive
C.looks and feels like a common plastic bag
( ) 4.The EnviGreen bag breaks down fastest in ________.
C
A.hot air B.cold water C.boiling water
( ) 5.From the last paragraph, we can infer ________.
C
A.all of India’s plastic waste is processed
B.India produces more plastic waste than other countries
C.the EnviGreen bag may help solve the problem of plastic pollution
四、书面表达。
节约资源，保护环境，从我们身边的小事做起。假如你叫李华，请根据所给要点提示，以“My low-carbon life”为题写一篇英语短文，简单描述自己的“低碳生活”。80词左右。
要点提示：
1.每天步行上学；
2.离开教室时，关灯、关风扇、关电脑等；
3.不用水时，记住关水龙头（tap），而且要循环使用水；
4.学会垃圾分类，不使用塑料袋。
参考词语：sort garbage对垃圾进行分类
My low-carbon life
#b#
______________________________________________________________
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
My name is Li Hua. I am a middle school student. I go to school on foot every day. I always remember to turn off the lights, fans and computers when I leave the classroom. When I finish using water, I always turn off the tap. I often reuse water. For example, when I finish washing the clothes, I reuse the water to water flowers or trees. I learn to sort garbage. I try to use cloth shopping bags instead of plastic ones when shopping.
I believe our life will become better and better if we can do these things. Lower carbon, happier life. Let’s take action.
One possible version:
知识清单
Unit 13
重点短语
1._________________起作用；有影响
make a difference
2.______________对……有害
be harmful to
3._____________在……顶部或顶端
at the top of
4.______________食物链
the food chain
5.____________参加
take part in
6._________关掉
turn off
7._________付费；付出代价
pay for
8.____________扔掉；抛弃
throw away
9.__________________好好利用某物
put sth. to good use
10.____________拆下；摧毁
pull...down
11._____________上下颠倒；倒转
upside down
12.___________恢复；使想起；归还
bring back
重点句型
1._______________________________________________________________________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。
Well, to cut down air pollution, we should take the bus or subway instead of driving.
2.__________________________________________________________________________________在过去的20到30年里，某些种类的鲨鱼数量下降了百分之九十以上。
The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years.
3._____________________________________________________________________到目前为止，没有科学研究证明鱼翅对健康有益……
So far no scientific studies have shown that shark fins are good for health...
4.__________________________我们正努力拯救地球。
We’re trying to save the earth.
5.__________________________这条河过去非常干净。
The river used to be so clean.
6.____________________________我们应该帮助拯救鲨鱼。
We should help save the sharks.
7.__________________________________________________________对于带小孩的父母来说，使用公共交通很困难。
It’s difficult for parents with young children to use public transportation.
8._____________________________________________________________________________________________________________________这种艺术不仅能带给他人愉悦，而且还表明只要通过一点儿创造力，即使冰冷坚硬的铁块也能有生命力。
Not only can the art bring happiness to others, but it also shows that even cold, hard iron can be brought back to the life with a little creativity.
语法要点
1.复习现在进行时。
2.复习used to的用法。
3.复习被动语态。
4.复习现在完成时。
5.复习情态动词。

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