（一）非谓语动词1.The grey building is where the workers live,and the white one is where the spare parts_____.a.are producingb.are producedc.producedd.being produced2.Homework____on time will lead to better grades.a.doneb.be donec.having doned.to have been done3.It is not unusual for workers in that region____.a.to be paid more than a month lateb.to be paid later than more a monthc.to pay later than a month mored.to pay late more than a month4.The speech ______ ，a lively discussion started.A) Being delivered B) was deliveredG) be delivered D) having been delivered 5. ______ for my illness, I would have lent him a helping hand.A) Not being. B) Had it not beenC) Without being D) Not having been6. ______ a teacher in a university, it is necessary to have at least a master's degree.A) To become B) Become C) One becomes D) On becoming1.band 连接的两个分句应该有一致的结构，主语是备用零件是produce的接受者，所以选被动语态。2.a分词做定语修饰homework，homework是接受者，所以用过去分词表示被动。3.a本题测试不定式的被动语态，工资是被发，是动作的承受者，所以用被动语态。b的语序不正确。4.d这句是分词独立主格结构，speech是动作的承受者，所以要被动，并且发生在主句之前。5.b这句是虚拟语气的否定倒装形式。6.a不定式做目的状语