Unit 13 We are trying to save the earth 第1课时Section A(1a-2d)学案（无答案）

Unit 13 We are trying to save the earth

第1课时Section A（1a-2d） 1. Phrases:

在……的底部_____________________ 充满，布满___________________ 把……扔进……____________________ 关闭工厂 ____________________ 打扫 _______________________ 扮演角色，起作用_________________________ 噪音污染_____________________ 把……变成……___________________ 对……产生影响或作用____________________ 2. litter, n. 垃圾，同义词_________. V. 乱扔

公园里有一些垃圾。_________ some _______ in the park. 不要往地上乱扔书。__________ _________ the floor with books 3. 污染（v.）_______________________, (n.)______________________ How to deal with the ____________ (pollute) is a hot issue in modern society. The poisonous smoke ____________ (pollute) the fresh air in the area.

所有这些废物正在污染这条河。 All the________ things ________ _________ the river

我们越少开车，污染就会越少。_____ ______ we use cars, the ______ ______ there_________ be. 4. at the bottom of在...的底部

5. 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者地铁，而不是开车。

cut down 意为―减少‖；是―动词+副词‖结构的短语，所带的宾语为名词时，宾语可位于down的前面或后面；为代词时，只能位于down前面。

You’d better cut the article down to about 2,000 words. 你最好能把这篇文章压到两千字左右。 cut off：切碎，切掉 cut down：砍倒，减少 cut up：切碎 cut into：把……切成…… cut in line： 插队 cut sth. into pieces 把…..切成碎片

They_________ __________ the big tree. 他们砍倒了这棵大树。

The doctor had to ____ ____ his arm ____ _____ his life.医生为了挽救他不得不将他的胳膊截止 _____ _____ the meat, please. 请把肉切碎

It’s _______ _______ ______ ______ line. 插队是不礼貌的。

①—Did you tell it to Jack? —Yes, but we were ____ in the middle of our telephone conversation

A. cut down B. cut off C. cut up

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D. cut into

② We must do something useful to ____ pollution. A. cut off B. cut up C. cut down D. cut in

It’s good for health and it doesn’t cost anything! 它对身体有好处并且不会花费任何东西。 be good for : 对… 有好处 be good at：擅长 = do well in be good with: 善于应付…

________ more vegetables ______ ______ ______ your health. 多吃蔬菜对健康有好处 He ________ ______ _______ children.他对待孩子很有一套 I _____ ______ ______ playing chess. 我擅长下棋 6. 辨析：spend, cost, take, pay

花费 spend cost 主语 人 物或事 take 事或人 pay 人 意思是“支付”，作为及物动词，宾语可以是“人”、“钱” pay for 这辆自行车花了我350元。

The bike _______ _______ 350yuan. 否定句______________________________ = I _________ 350yuan __________ the bike. = I ________ 350yuan ___________ the bike 我每天花大量的时间研究英语。 I _________ plenty of time __________ English.

= ________ _______ me plenty of time _______ ______ English ① —Do you take exercise every day?

—Yes. I always ___thirty minutes after supper. A. spend B. cost C. take D. pay ② I _________ $300 for the bike. A. took

B. spent C. cost

D. paid

人 宾语为“物”、“事”，for表示支付的原因 表示的内容 宾语可以是钱、精力、时间等。 后接life, money, health, time等，侧重于“花费”的代价。 它说明事情完成“花费了……”。 ③ The interesting book _____ me 10 yuan. A. spent B. took C. paid D. cost 7. keep public clean and beautiful 保持公共场所的清洁和美丽

keep + sth + adj.(clean/tidy/open/closed)保持某种状态， keep (sb) doing （某人）一直做某事 keep sb from doing 让某人呢不做某事 = _______________

keep away from避开; 远; （使） 不接近， Keep off the grass.勿踏草地！ 你应该保持你房间的整洁。 You should ________ your room _______.

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你认为青少年应该远离网络吗？ Do you think teenagers should _____ _____ _____the Internet? 会议期间请关闭手机。 The mobile phone ______ ______ ______ ______ during the meeting. 他不断的把自己的所见拍下来。He ________ _______- the photos of what he saw.

8. make a difference 起作用， 有影响。 同义词_______________, 对某人产生影响______________ 污染的空气影响了他的健康。The _________ air _______ _____ _______ _____ her health. 【达标训练】

Ⅰ. 用方框中所给词的适当形式填空。 cost, wood, coal, bottom, litter 1. Don’t throw _______________ everywhere.

2. In winter, many people burn ________________to keep warm. 3. The police found a body at the _______________ of the lake. 4. The ______________ of living in big cities is very high. 5. He keeps a rabbit in a big ________________ box. II. 单项选择。

1. He ____ go out with his parents, but now he ____ staying at home alone. A. used to; is used to

B. is used to; used to C. use to; is used to

D. is used to; is used to

2. Smoking can _____ lung cancer. You’d better give it up.

A. work on

B. lead to C. take away

D. put out

3. —What are the _____ of bike riding? —It can help cut down air pollution.

A. advantages

B. reasons C. results

D. ideas

4. Watches in this shop ______ ten dollars each. A. pay B. cost C. take D. spend 5. Lady Gaga is famous _____ her beautiful voice. A. as B. with C. for D. of 6. The coat isn’t expensive. I can afford it. A. sell B. borrow C. lend D. buy 7. –The classroom is so bright now. you should _____ the lights. – OK, I will. A. turn on B. turn up C. turn down D. turn off

8. I think drinking milk is good ______ our health. A. for B. in C. with D. at 9. Class begins. Please stop______ A. talking B. to talk C. talk D. talked

10. In order to make our city more beautiful, more trees and flowers ______ every year. A. will plant B. should plant C. should be planted

11. He had to retire(退休) early _____ poor health. A. as a result B. because C. so D. because of 13.______ books in our school library is about 20,000. and ____ books are good fro us to read.

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A. A number of , the number of B. The number of , a number of C. A number of , a number of D. The number of , the number of

14. Don’t ____ the tree. They are animals’ homes. A. cut down B. cut in C. cut up D. cut out 15. Anyone who sings well can ____ the activity in our school. A. take part in B. take off C. take out D. take care of III. 根据汉语提示完成下面的句子。 用所给单词的恰当形式填空

1. We must keep __________ (practice) the piano. 2. He tried ____________ (work) hard to save more money. 3. The book ____________ (cost) her 3yuan.

4. I hope our actions can make a ____________(different) 5. Do you like the ___________ (wood) chair? 改写句子

6、We should save the sharks. (改为被动) The sharks _______ ______ saved by us. 7、 The river used to be so clean. (一般疑问句) _______ the river _____ ______ be so clean? 8、 I have ever taken part in an environmental project. (一般疑问句)

9、 ________ you _______ ever ______ _______ ________ an environmental project? 10、 11、

I take the bus to work. = I ______ to work _____ _______.

We are trying to save the earth.（提问） _________ are you trying to ___________?

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