Unit 13 We’re trying to save the earth! Section A1 (1a-2d) 优学案（含答案）

Unit 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，一级保护水资源的重要性。
5. 结对操练，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。
【重点和难点】
使用我们所学到的知识来谈论污染和环境保护。
【课前预习】
一、请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　花费；n.价钱 ____
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. 塑料的塑料；n. 塑胶____
10. n. 外卖食物____
11. n . 垃圾箱____
二、请认真阅读课文，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．尽一份力把它清理干净____
16．使空气中充满了黑烟____
17．减少空气污染____
18．产生影响____　
三. 请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把它清理干净！
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-P98，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，不再有
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、观察课本P97图片，结合2a，2b内容仿照例子，试着描述与归类图片里的污染问题，对其产生原因进行推测并提出解决方法。注意时态。
Picture 1
Picture 2
Picture 3
What’s the kind of the pollution?
Water pollution
What was the problem?
The river was very dirty and it was full of rubbish.
What caused the problem?
People are throwing litter into the river.
How should the problem be solved?
We should help to clean up the river.
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 environmental protection is just the government’s task? 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】
某物花费(某人)一些钱sth. (sb.) some money
某人花费时间/金钱在某事上sb. some time/money sth.
某人花费时间/金钱做某事sb. some time/money sth.
做某事花费某人一些时间It takes sb. some time sth.
某人为某物付费sb. some money sth.
语境串记(根据汉语提示完成句子)
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.
我的同学昨天花了整整一下午的时间买了台电脑，这台电脑花了他3500 元。我也想拥有一台，但是我没有足够的钱。因此我花了更多的时间买了一台便宜点儿的，我仅付了2000元。
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. 这个房间里将有一个聚会，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.
IV. 补全对话。
根据对话内容，从方框中选择合适的选项补全对话。(其中有两项多余)
Bob：Good morning，Kim.
Kim：Good morning.
Bob：__16__ It can save a lot of time.
Kim：Well, I prefer walking to driving a car.
Bob：Mm, it's good for health and the environment.
Kim：Yes. The environment is very important for us.__17__
Bob：Yeah, right. What else can we do?
Kim：For example, we'd better not buy clothes made of animal fur.
Bob：I agree with you. __18__ Anything else?
Kim：Don't use plastic bags.
Bob：__19__
Kim：Yes，they are really useful for us. But they pollute our environment.
Bob：__20__
Kim：We can use cloth bags instead of plastic ones.
Bob：That's a good idea. Oh，it's late. I must go now. See you!
Kim：See you!
A. Everyone should do something for it.
B. Why don't you drive to work?
C. It's useless for protecting plants.
D. It's a good way to protect animals.
E. Why do you go to work in a car?
G. How can we carry things after shopping then?
【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】
litter
ugly
advantage
cost
wooden
bottom
fisherman
coal
plastic
take away
bin
at the bottom of the river
be full of the rubbish
throw litter into the river
play a part in cleaning it up
fill the air with black smoke
cut down air pollution
make a difference
play a part in cleaning
to cut down air pollution
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；cu it down；cut them down
2. cost(s)；spend(s)；on；spend(s)；(in) doing；to do；pay(s)，for
spent，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】
bottom
ugly
plastic
coal
litter
wooden
fishermen
keeping
advantages
actions
11. clean…up
12. is full of
13. make a difference
14. cut down
15. play a part in protecting
16. B　17. A　18. D　19.E　20. G