三、詞匯和語法

　　31. John was late for the business meeting because his flight had been _____ by a heavy storm.

　　A.kept B.stopped C.slowed D.delayed

　　答案：D

　　32. It's ten years since the scientist _____ on his life's work of discovering the valuable chemical.

　　A.made for B.set out C.took off D.turned up

　　答案：B

　　33. Hospital staff burst into cheers after doctors completed a 20-hour operation to have _____ one-year-old twins at the head.��

　　A.isolated B.separated C.divided D.removed

　　答案：B

　　34. I don't _____ rock 'n' roll.It's much too noisy for my taste.��

　　A.go after B.go away with C.go into D.go in for

　　答案：D

　　35. He accidentally _____ he had quarreled with his wife and that he hadn't been home for a couple of weeks.��

　　A.let out B.took care C.made sure D.made out

　　答案：A

　　36.Although _____ experience, the members of the team played well in the football game.

　　A lacked B lacking of C lacking D lacked of

　　答案：C

　　37._____ you've tried it, you can't imagine how pleasant it is.

　　A Unless B Because C Although D When

　　答案：A

　　38.There's no light on they _____ be at home.

　　A can't B mustn't C needn't D shouldn't

　　答案：A

　　39.We often provide our children with toys, footballs or basketballs, _____ that all children like these things.

　　A thinking B think C to think D thought

　　答案：A

　　40.Some people in parts of the world are wasting food _____ some others haven't any.

　　A since B when C as D while

　　答案：D