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Unit 13We're trying to save the earth!单元测试题 一、单顶选择 ()1.So far this year we about half of the road and we are sure that it will be finished on time. A.have built B.built C.build D.are building ()2.-Must I finish reading this book today,Mr.Brown? -No,you_.It's due next week. A.needn't B.can't C.mustn't D.shouldn't ()3.These crazy fans have waited for about five hours.They will continue to wait_the football superstars arrive. A.when B.since C.till D.after ()4._-helps us a lot to protect the environment. A.Buying old things B.Making cheap things C.Recycling things D.Using cheap things )5.-Would you like to tell me something about Yuan Longping? -He's called the "father of hybrid rice"and he helped save_China -_-the world from hunger. A.not only;but also B.either;or C.neither;nor )6.The weather is bad outside,_we have to stay at home. A.so B.or C.but D.because )7.-It's reported that many children in small villages can't_their education. -Really?We should value the chance to study. A.mention B.offer C.refuse D.afford )8.This picture_ _by my cousin last year. A.draw B.drew C.is drawn D.was drawn ()9.-Why didn't John come to Susan's birthday party? -He_-. A.isn't invited B.didn't invite C.wasn't invited D.hasn't invited )10.It is helpful for older adults to exercise.Not only_them keep their bodies healthy,but it can also help their brains. A.it helps B.helps it C.can it help D.it can help 二、完形填空 It was a lovely spring afternoon.My classmates and I were playing happily on 1 the playground when I let out a cry,"Ow!Ow!Something in my shoe is biting me." Everyone was shocked by the cry.They took me into a classroom and were about to take off my (11)_"Which foot is it?"one asked."Let us have a look." Suddenly,I remembered the holes in(12)_socks.My family was very poor during those years.I wore welfare socks,which cost only a little,but those (13) _welfare socks didn't last long.They soon had (14)_at the bottom. I refused to take off my shoe.I(15)_stand others seeing the holes i