资源简介

(共53张PPT)
Assessment & Further study
Unit 7 The natural world
Assessment
What I can do Me Partner
1 I can retell some facts about different ecosystems.
2 I can use verbs and sentence structures, and, but, or and so, and the suffix –ly correctly.
3 I can talk and write about protecting the ecosystems with the new words in this unit.
4 I have some ideas about how to protect ecosystems and the environment.
* Assess your learning of new words and grammar by doing the exercises on page 140.
Result: □ Weak □ Good □ Wonderful
I am good at __________________________.
I need to spend more time on ____________.
My action plan：______________________
Further study
The Chinese Wetlands is a wonderful documentary about various kinds of wetlands in China, the Chinese people‘s efforts to protect them and the achievements we have made. Watch it to learn more about the importance of wetlands and share your findings with your classmates.
自主学习 语法现象
判断下列句子属于哪种句子结构
1. I give her a birthday present. ( )
2. Reading books helps me relax after a busy day. ( )
3. I brought my sister her favorite cake. ( )
主谓宾宾
主谓宾补
主谓宾宾
写出下列句子中的并列连词
4. Maths is very difficult, so Gina doesn’t like it. ( )
5. Do you want to be a worker or a teacher ( )
6. My brother has a basketball and a soccer ball, but he doesn’t have a volleyball. ( )
so
or
and; but
合作探究 语法考点
一 动词及基本句型（二）
考点1 主语+ 谓语+ 间接宾语+ 直接宾语（S+V+IO+DO）
一些及物动词（如give, pass, show, send, bring, tell, teach, buy, lend 等）可以接双宾语。一个是指物的直接宾语，另一个是指人的间接宾语。通常情况下，间接宾语在前，直接宾语在后。当间接宾语放在直接宾语之后时，要加介词to 或for。
· He bought you a dictionary.=He bought a dictionary for you.
他给你买了一本词典。
· My friend gave me an apple.=My friend gave an apple to me.
我的朋友给了我一个苹果。
注意：能与to 搭配的动词有bring, feed, give, hand, lend, offer, pass, pay, post, read, sell, send, show, take, teach, tell, write 等。能与for 搭配的动词有bring, build, buy, cook, find, get, leave, make, order, save 等。
考点 2 主语+ 谓语+ 宾语+ 宾语补足语（S+V+O+C）
该句型中的谓语由可接宾语补足语（简称宾补）的及物动词充当，宾语和其补足语一起构成复合宾语。若无宾语补足语，则句意不完整。能充当宾语补足语的有名词、形容词、副词、介词短语、不定式（短语）和分词（短语）。
· They usually call the baby Dick. 他们通常叫那个婴儿迪克。
(名词作宾补)
· I find maths very difficult. 我发现数学很难。(形容词作宾补)
·He told me to visit there. 他告诉我去那里参观。(不定式作宾补)
·Don’t keep me waiting too long. 不要让我等太久。(现在分词作宾补)
·I must have my hair cut tomorrow. 我明天得去理发了。
(过去分词作宾补)
考点 1 并列连词and
and 意为“ 和，又”，表达并列关系，连接单词、短语或句子。
·The students and the teachers are planting trees on the hill.
学生们和老师们正在山上种树。
·Go along the street and you’ll find the library.
沿着这条街走，你就会找到图书馆。
二 并列连词and、but、or 和so
考点 2 并列连词but
but 意为“ 但是”，表达转折关系，所连接的成分意思往往相反或相对。
·Ryan is wise but careless. 赖安是一个聪明但粗心的人。
·I want to help you, but I really don’t know what to do.
我想帮你，但我真的不知道该做些什么。
考点 3 并列连词or
or 意为“或者”，表达选择关系。
·Do you go to school by bus or on foot
你是坐公共汽车还是步行去上学？
·Which do you prefer, white or black
你更喜欢哪一个，白色还是黑色？
注意：在否定句中并列成分通常用or 连接，而不用and。
·I don’t like maths or science.
我不喜欢数学和科学。
考点 4 并列连词so
so 意为“因此，所以”，表达因果关系，常用来连接两个简单句。
· It began to rain, so we had to stay here.
开始下雨了，因此我们不得不待在这儿。
· I thought you might like this book, so I sent it to you.
我想你或许喜欢这本书，所以我给你寄过去了。
注意：并列连词so 和从属连词because 不能一起使用。
对点突破 语法专练
一 将两句话合并为一句，构成主谓宾宾或主谓宾补结构
1. John gave some money. He gave it to the charity.
→__________________________________________________
2. We found the house. The house was dirty.
→__________________________________________________
John gave the charity some money.
We found the house dirty.
3. She showed the map. She showed it to the tourist.
→__________________________________________________
4. Mom painted the wall. The wall became white.
→__________________________________________________
5. The coach trained the players. The players became strong.
→__________________________________________________
She showed the tourist the map.
Mom painted the wall white.
The coach trained the players strong.
二 单项选择
6. [天津] In autumn, the weather gets cooler _______ the green leaves start to turn gold.
A. because B. but C. whether D. and
7. The flight was delayed （延期） because of the storm, _______ the passengers had to wait at the airport.
A. so B. or C. for D. but
D
A
8. Patty spent several days planning to invite Charlie to dinner, _______ she couldn’t say a word when they met.
A. but B. if C. or D. so
9. —Do you like Journey to the West _______ The Adventures of Tom Sawyer
—Journey to the West.
A. and B. or C. but D. so
A
B
10. The high school invited a famous scientist _______ a talk on World Earth Day.
A. giving B. to give C. give D. given
B
写作维度
本单元的写作项目是保护大自然。相关内容涉及以下几个方面：（1）保护森林与湿地；（2）保护自然保护区；（3）保护海洋与水资源；（4）践行绿色生活方式的重要性等。
写作支架/模版
保护大自然 开篇点题：塑料垃圾给海洋带来污染
提出建议：如何减少使用塑料制品
归纳总结：表达美好期望
黄金语料（从教材内外积累好句）
开头段
①Welcome to... Today I’ll talk to you about...
②Deserts are difficult places for animals to live.
③In some cities, the air is filled with pollution.
中间段
① People cut down many trees so elephants are losing their homes.
② The river is dirty. Even the bottom of the river is full of rubbish.
③ I think simple things like bringing a bag to go shopping can help.
④ You can also save electricity by turning off the lights when you leave a room.
⑤ To cut down air pollution, we should take the bus or subway instead of driving.
⑥ We should separate waste into different groups so that it can be recycled.
⑦ We should plant more trees so that the air will become cleaner.
结尾段
① In my opinion, I’ll try my best to make our city cleaner and more beautiful.
② I believe if we pull together, we can make the world a better place to live in.
③ All in all, we should ... to protect the earth and make it greener.
经典例题（从经典例题学会审题）
每年6 月8 日为“世界海洋日(World Oceans Day)”。 2018 年世界海洋日的主题为“清洁我们的海洋(Cleaning Our Oceans)”。海洋中有数百万吨塑料垃圾，这会伤害甚至杀死海洋生物。作为中学生的你，应该减少塑料制品的使用。请以“Saying No to Plastics”为题，写一篇英语短文。
审人称：第一人称
审体裁：议论文
审时态：一般现在时
要点如下：1. 塑料污染现状及减少使用塑料制品的重要性；
2. 减少使用塑料制品的建议。
注意：1. 词数80 ～ 100；
2. 文中不得出现真实姓名及学校名称。
参考词汇：recycle v. 再利用；回收利用
Saying No to Plastics
______________________________________________________
审要点：说明塑料污染现状及减少使用塑料制品的重要性；提出减少使用塑料制品的建议。
精彩范文[从教材内外积累好句]
Saying No to Plastics
In recent years, we have to face the plastic pollution problems. There are millions of tons of plastic waste in the ocean. This will harm or even kill sea life. Therefore, we must take action to stop plastic pollution.
教材原句①There are millions of tons of plastic waste in the ocean.(教材P104)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
教材原句 ②This will harm or even
kill sea life. (教材P104)
~~~~~~~~~~~~~~~~~
As students, we should reduce the use of plastics. First, we should use a cloth bag while we are shopping. Second, even if we need to use plastic bags, we should recycle and make full use of them. Third, we are supposed to bring our own cups instead of using plastic cups.
All in all, we should reduce the use of plastics to protect the earth and make it greener.
【亮点词块】
take action 采取行动
even if 即使
make full use of 充分利用
be supposed to应该
instead of而不是
【高分句子】
· Second, even if we need to use plastic bags, we should recycle and make full use of them. （让步状语从句）第二，即使我们需要使用塑料袋，我们也应该回收并充分利用它们。
· All in all, we should reduce the use of plastics to protect the earth and make it greener. （不定式作目的状语）总之，我们应该减少塑料的使用，以保护地球，使其更环保。
实战演练
保护环境，人人有责。请你结合下面思维导图信息，以 “Let’s try our best to protect the environment”为题，根据写作要求，用英语写一篇短文，向学校校刊的英语专栏投稿。
写作要求：1. 文中须包含思维导图提示的所有信息，可适当发挥；
2. 文中不得出现考生的真实姓名和学校名称；
3. 词数100左右。
Let’s try our best to protect the environment
______________________________________________________
______________________________________________________
范文参考
Let’s try our best to protect the environment
Nowadays, our environment is becoming worse and worse. As middle school students, we have the responsibility to play a part in protecting the environment and make a difference!
To protect the environment, we can start small like saving water. Besides, we are supposed to recycle things whenever possible.
What’s more, we can choose to ride a bicycle instead of taking a car to school to help cut down air pollution, and we should make sure to always throw rubbish in the proper bins.
By doing our part, we can make a difference and create a better future for ourselves and generations to come. Let’s take action now!
重点单词
1. climate n. 气候
2. wetland n. 湿地
3. include vt. 包括
→ including prep. 包括……在内
→ include... in 把……包括在内
4. around adv. 大约
→ look around 环视；向四周看
5. hold vt. 容纳；拿着；举行
→ hold on 别挂断电话；稍等
→ hold off = put off 推迟
6. return vi. 返回，回去，回来
→ return to + 地点 返回某地
→ return sth. to sb. 把某物归还给某人
→ in return 作为回报
7. prevent vt. 防止，阻止
→ prevent sb. from doing sth. 阻止某人做某事
8. store vt. 贮存→ store up 储存；积累
→ n. 商店；仓库
9. act vi. 起作用；行动 vi. & vt. 扮演
→ act like 表现得像……
→ act as 充当；担任
→ act out 表演出来
10. trap vt. 吸收；使落入险境
→ trap sb. /sth. (into sth. /into doing sth.)
使陷入圈套；使中计；使上当
n. 陷阱；圈套
→ fall into a trap 落入陷阱；陷入圈套
11. therefore adv. 因此
12. sadly adv. 不幸地；悲伤地
→比较级是more sadly，最高级是most sadly
13. ton n. 吨 → tons of 大量的
→ in tons 数以吨计的
14. harm vt.& n. 伤害，损害
→ do harm to 对……有害
→ harmful adj. 有害的
→ be harmful to 对……有害
15. wildlife n. 野生动物
→ a wildlife habitat 野生动物栖息地
16. topic n. 话题
17. sandy adj. 铺满沙子的，含沙的
→ sand n. 沙
18. noisy adj. 充满噪声的；吵闹的
→ noise n. 噪音
→ make a noise 制造噪音
19. cause vt. 使发生，造成，导致
n. 原因；理由
→ cause sb. sth. 给某人造成某物
→ cause + 宾语 +不定式 使……做某事；导致……发生某事
20. damage vt. 损害，毁坏 n. 损坏，损失；损害
→ cause damage to sb. / sth. 对某人/某物造成损害
21. north-east n. , adj. & adv. 东北；东北方的；向东北方
22. cover n. 躲避处；罩子→v. 遮盖；覆盖
→ cover sth. with sth. 用某物遮盖某物
→ n. 封面，封皮
23. rare adj. 稀罕的，珍贵的
→比较级是rarer，最高级是rarest
→ a rare book一本珍贵的书
24. lead vi. 造成（后果）
→过去式和过去分词为led
25. create vt. 创建，创造
→ creation n. 创造；创作
→ creative adj. 创造性的
26. balanced adj. 保持平衡的
→ a balanced diet 均衡饮食
→ balance n. 平衡
27. project n. 项目
→ a research project研究计划
28. knowledge n. 知识
→ knowledgeable adj. 博学的；知识渊博的
29. sir n. 先生
30. madam n. 女士
31. kill vt. & vi. 杀死→ killer n. 杀手
32. solve vt. 解决；解答
33. environmental adj. 环境的
重点短语
1. look like看起来像
2. be home to是……的栖息地/所在地
3. between...and... 在……和……之间
4. get rid of清除；摆脱
5. make up占据（某种比例）
6. millions of 数以百万计的
7. too much 太多
8. quite a few相当多，不少
9. provide...with... 给……提供……
10. be worried about 担心……
11. because of 因为
12. lead to导致
13. the number of
重点句子
1. Do you know anything about ecosystems, David 大卫，你对生态系统有所了解吗？
2. ...the climate in deserts is so awful that only a few animals and plants can live there. ……沙漠的气候如此恶劣，以至于只有少数动植物能够在那里生存。
3. Each ecosystem has a role to play and helps keep the balance between all its members and the greater environment. 每个生态系统都要发挥作用，帮助保持其所有成员和更大的环境之间的平衡。
4. It holds plenty of salt water, and the water rises to the sky, falls onto the lands and then returns to the ocean.它容纳大量盐水，这些水升上天空，落到陆地上，然后又回到海洋。
5. Forests make up nearly a third of the earth’s land area.森林占地球陆地面积的近三分之一。
6. Do you know what it is 你知道它是什么吗？
7. It’s time for us to take action and protect the ocean.是时候我们采取措施来保护海洋了。
8. What can we do to help protect forests, Daniel 我们能做些什么来保护森林呢，丹尼尔？
9. It is meaningful to join an environmental group and work as a volunteer.加入环保组织并且作一名志愿者是很有意义的。

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