英语人教版九年级全册Unit 13 Section A .doc

Unit 13 Were trying to save the earth!Section A (1a-2d)【基础预习】I. 写出下面单词的意思。1. littler _2. bottom _3. fisherman _3. coal _5. ugly _6. advantage _7. cost _8. wooden _9. plastic _II. 把下面的短语与汉语意思搭配。1. make a difference A. 参与2. cut down B. 充满3. lead to C. 减少4. be full of D. 起作用5. play a part in E. 导致【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。21世纪教育网版权所有【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。【来源：21世纪教育网】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。21*cnjy*comYoud 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. 【版权所有：21教育】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. 【来源：21cnj*y.co*m】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 foods _ _ _ _ the spread of the disease. 21*cnjy*com4. 这条小路通向公园。 The path _ _ the park. 5. 我错拿了你的包。 I took your bag _ _ mine by mistake. Section A (3a-4c)【基础预习】I. 根据汉语提示写出下面句中所缺的单词。1. I have a simple and easy _ (方法) to solve the problem. 2. We shouldnt be _ (残忍的) to animals. 3. Its _ (有害的) to your health to drink to much. 4. The city is the _ (工业) center of the country. 5. The car is too expensive, I cant _ (买得起) it. II. 写出下面短语的意思。1. take part in _2. turn off _3. pay for _4. hear of _5. be harmful to _【重点讲练】1. The method is not only cruel, but also harmful to the environment. 这种方法不仅残酷，而且对环境也有害。21cnjyharmful 形容词，意为“有害的”。常构成短语be harmful to “对有害的”。Staying up often is harmful to your health. 经常熬夜对你的健康有害。【拓展】harm 名词，意为“害处”。常用构成短语do harm to “对有害”，相当于be harmful to. Too much smoking does harm to his health. = Too much smoking is harmful to his health. 吸烟过多对他的健康有害。【小试牛刀】改为同义句。Reading in the sun does harm to our eyes. Reading in the sun _ _ _ our eyes. 2. Have you ever taken part in an environmental project? 你曾经参加过环境保护活动吗？辨析：join, join in 和take part in join 加入组织，团体，党派等，有作为其中的一个成员的含义。后面也可以加表示人的名词，表示和某人一起参加某活动。join in加入一种具体活动。take part in 指参加会议或群众性活动等，着重说明句子主语参加该项活动并在活动中发挥作用。Willyoujoinusinthediscussion?你参加我们的讨论吗？ShejoinedtheYoungPioneers.她加入了少先队。Whydidntyoujoininthetalklastnight?昨晚你为什么没参加座谈？【出处：21教育名师】Did you take part in the sports meet? 你参加运动会了吗？【小试牛刀】单项选择。1. Have you _ a club? Yes, Im in a swimming club and I often _ the swimming training. 21教育名师原创作品A. joined; take part inB. joined; join C. taken part in; join D. taken part in; join in 2. Were going for a picnic. Would you like to_ us? Why not? Lets go! A. attendB. joinC. join inD. take part in 3. We cant afford to wait any longer to take action! 我们不能再等了，要采取行动了。 afford是动词，意为“买得起,担负得起”，通常与can,could,beableto连用,多用于否定句中。Theycouldntafford$50foraticket.他们拿不出50美元买一张票。 afford后面常跟带to的动词不定式。Wecantaffordtogoabroadthissummer. 今年夏天我们没有足够的钱出国。【小试牛刀】单项选择。Miss Taylor never wastes money on anything too expensive, even though she can _to. She has donated much of the money she saved to charities. A. affordB. allowC. remind D. pay【达标训练】I. 用方框中词的适当形式完成下面的句子。method, cruel, harmful, afford, law1. I think its _ to make such a young boy work all day. 2. The poor fisherman cant _ his childrens education. 3. I think the government must develop _ to protect environment. 4. Eating too much junk food is _ your health. 5. He can use different _ to work out the problem. II. 单项选择。1. Are you going to _ any of the events? Yes. Maybe long jump and high jump. A. take part inB. joinC. attend D. join in 2. I cant afford _ him an expensive birthday present. A. to buyB. buyingC. for buyingD. buy 3. Remember to _ the lights when you leave the room. OK. I will. A. turn onB. turn downC. turn upD. turn off 4. The girl always has some money to _ snacks. A. spendB. pay forC. takeD. cost 5. Look! _ boys are playing on the playground. Yes. _ them is about 200. A. The number of; A number of B. The number of; The number of C. A number of; the