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选修3 Unit Ⅰ.用所给单词的适当形式填空 1．Everyone was a bit________(puzzle)by her sudden departure. 2．I consider that it is________(harm) for students to play computer games，though some of them don't think so. 3．Some believe in the________(exist)of life on Mars，while others consider it as a myth. 4．It's________(like)him to be late；he's usually on time. 5．I could feel the wind________(gentle) blowing through my hair，it was a warm summer breeze. 6．Not all people are aware of the various effects of________(globe)warming on Earth. 答案：1.puzzled 2.harmful 3.existence 4.unlike 5.gently 6．global Ⅱ.短语填空 go by，prevent from，as if，cheer up，break out，now that，get close to，depend on，get the hang of，in time 1．The government took immediate measures and the disease was____________spreading. 2．Our success____________whether everyone works hard. 3．It was difficult for the helicopters to____________the roof of the building because of the heavy smoke. 4．He____________at once when I promised to help him. 5．They got to the airport by taxi just____________for their flight. 6．____________you've passed your test，you can drive on your own. | 
