Unit 3 Care for the earth 知识点讲解+精选精练（讲义） 陕旅版（三起）英语六年级上册

Unit 3 知识点讲解 精选精练（讲义） 陕旅版（三起）英语六年级上册 知识点讲解 必背词汇： pick flowers摘花 cut down trees砍树 make the air dirty污染空气 waste water浪费水 drive a car开车 care for the earth关爱地球 on the earth 在地球上 have to 不得不，必须 have no time 没有时间 why not为什么不 World Car Free Day世界无车日 because因为 do something for为…做些事 go to work去上班 on foot步行 live on 住在…上 sometimes有时 too many/much太多 only one唯一的 plant more trees栽更多的树 do bad things to对…做坏事，损坏… help the animals帮助动物 be helpful to…对做…有用 had better最好 make the air clean净化空气 常用口语： Great!太棒了! I see.我明白了。 What's the matter?怎么了？ Help!救命! Why?为什么? What should I do?我该怎么办? 常用句型： 表达应该做某事或不应该做某事的句型: We should plant more trees. You shouldn't cut down trees. Tom shouldn't waste too much water. 表达自己的看法的句型: I think I should go to work on foot today. I think we should go to the park by bike. I think you shouldn't waste too much water. 精选精练 一、单选题 1．This cartoon is  ________ a cat. The cat is a police officer. A．with B．in C．about 2．Today is World Car Free Day. People have to ________ to work by bike. (     ) A．go B．goes C．went D．going 3．There are so ________ cars in the city. (   ) A．many B．much C．little 4．Since the road is wet this morning, _____ last night. (   ) A．it must rain B．it must have rained C．it must be rained D．it must have been rained 5．What should I ________? (   ) A．does B．do C．did 6．How _______ we save water? (  ) A．do B．does C．doing 7．I don't drive my car _______ today is World Car Free Day. (   ) A．so B．that C．because 8．She goes to ________ in a big park. (   ) A．play B．playing C．plays 9．We cut down too ______ trees and waste too ______ water. (   ) A．many; many B．much; much C．many; much 10．—Don’t ______. (   ) —It’s time to do something for our earth. A．waste water B．plant trees C．help the animals 二、词汇选择题 选出不同类的一项。 11． A．tree B．flower C．beautiful 12． A．drive B．dirty C．pick 13． A．river B．clean C．mountain 14． A．helpful B．help C．plant 15． A．make B．think C．thing 三、补全句子 16．The