英语人教版九年级全册Unit13SectionA 1a-1c.doc

Unit 13 Were trying to save the earth!Section A (1a-1c)【重点讲练】1. The air has become really polluted around here. 这儿的空气已经被污染了。辨析：turn, get 与become become多指身份、职位等的变化，它强调变化的过程已经完成，后面可接名词或形容词。He becomes a teacher. 他成了一名老师。 get多用于口语，表示一种变化过程，强调的是“渐渐变得”，后常接形容词的比较级形式。In winter the days get shorter. 冬季白天变得较短。 turn指在颜色和性质等方面与以前的完全不同，强调变化的结果。 Leaves turned brown in the mountains. 山里的树叶已变成了棕色。【小试牛刀】用turn, get 和become填空。 Her mother _ angry when she heard the news. Its _ darker and darker outside. The milk has _ bad.2. 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。Youd 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。【拓展】cut down 还可表示“砍倒”的意思。They cut down the big tree. 他们砍倒了这棵大树。cut off 切断；切除cut into 把切成cut up 切碎cut in 插队【小试牛刀】单项选择Did you tell it to Jack? Yes, but we were _ in the middle of our telephone conversation. A. cut downB. cut offC. cut upD. cut into 3. Its good for health and it doesnt cost anything! 它对身体有好处并且不会花费任何东西。辨析：spend, cost, take, pay 花费主语表示的内容spend人宾语可以是钱、精力、时间等。cost物或事后接life, money, health, time等，侧重于“花费”的代价。take事或人它说明事情完成“花费了”。pay 人意思是“支付”，作为及物动词，宾语可以是“人”、“钱”pay for人宾语为“物”、“事”，for表示支付的原因【小试牛刀】单项选择1. Do you take exercise every day?Yes. I always _thirty minutes after supper. A. spend B. cost C. take D. pay2. I _ $300 for the bike.A. tookB. spent C. cost D. paid【达标训练】. 用方框中所给词的适当形式填空。cost, wood, coal, bottom, litter1. Dont throw _ (垃圾) everywhere. 2. In winter, many people burn _ (煤) to keep warm. 3. The police found a body at the _ (底部) of the lake. 4. The _ (费用) of living in big cities is very high. 5. He keeps a rabbit in a big _ (木制的) 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 toB. is used to; used toC. use to; is used toD. is used to; is used to2. The interesting book _ me 10 yuan. A. spentB. tookC. paid D. cost 3. We must do something useful to _ pollution. A. cut offB. cut upC. cut downD. cut in 4. Smoking can _ lung cancer. Youd better give it up. A. work onB. lead to C. take awayD. put out 5. What are the _ of bike riding? It can help cut down air pollution. A. advantages B. reasons C. resultsD. ideas III. 根据汉语提示完成下面的句子。1. 多一个人少一个人无所谓。 One person wouldnt _ _ _. 2. 这个木箱时装满了书。 The _ box _ _ _ books. 3. 不健康的饮食对这种疾病的传播起一定的作用。 Unhealthy