Topic1Unit2练习.ppt

1、( )1.How long _ you _ here? For about two years so far. A.have; studied B.did; live C.do; stay D.were; swimming ( )2.We have known each other _ ten years ago. A.for B.everC.aboutD.since ( )3.There is _ pollution in the world. We must stop it. A.much too B.too much C.many too D.too many ( )4.Is the f

2、lower beautiful? Yes, at _ its _ the one you bought for me. A.last; as bad as B.least; no better than C.last; not better D.least; no worse than ( )5.I cant stand _ for you so long. A.to waitB.waiting C.waitsD.waited,( )6.The boss made child laborers _ 12 hours every day. A.working B.works C.workD.to

3、 work ( )7._ the environment is important for human beings. A.Take care of B.Taking care of C.Took care ofD.Take the care of ( )8.Have you finished your homework? Not _. There are still some exercises to be done. A.alreadyB.yetC.justD.ever ( )9.It smells terrible. What has happened here? Look, there

4、 is much waste gas _ from the chemical factory. A.pourB.pouringC.pouredD.pours ( )10.When I was walking in the street yesterday, I saw a UFO _ over my head. A.flyingB.fliesC.flewD.to fly,(A) 根据句意，用所给单词的适当形式填空。 1.Look, there is a bird _ (sing) in the tree. 2.The bad air makes my chest hurt and its di

5、fficult for me _(breath). 3.They are doing their homework carefully. Youd better not _(disturb) them. 4.Litter _ (influence) the look of our city. 5.It is known that smoking does great _(harm) to us.,(B) 根据句意及汉语提示完成句子。 6.The chemical factories _ (生产) terrible gas. 7.Each year people pour _ (废物) into rivers, lakes and so on. 8.There are _ (几个) students reading books over there. 9.Do you know h