专四汇练习单选题2000.doc

1. The atmosphere ________of certain gases mixed together in definite proportions. a. composes b. comprises c. consists d. constitutes 2.While he was in the office he ________doing something to doing nothing. a. preferred b. liked c. favored d. approved 3.Metals_____ when cooled and expand when heated. a. decrease b. reduce c. condense d. contract 4.Take your raincoat with you_________ it rains. a. by chance b. in case c. at large d. on occasion 5. He was afraid he would have to _________her invitation to the party. a. refute b. refuse c. reject d. decline 6.At the Committee last Saturday the following proposal was agreed ________ by those present. a. to b. with c. over d. at 7.We went to see the exhibition ________ the storm. a. but for b. in spite of c. for the sake of d. instead of 8.To my surprise, at yesterdays meeting he again brought ________ the plan that had been . disapproved a week before. a .about b out c. back d. up 9.The doctor took X-rays to ________ the chance of broken bones. a. make sure b. rule out c. break down d. knock out 10.He felt it rather difficult to take a stand _________ the opinion of the majority. a. for b. against c. to d. by 11.He has behaved in the most extraordinary way recently; I cant ______his behaving like that at all. a. look into b. break through c. account for d. get over 12.How did it come ________ that you made a lot of mistakes in your homework? a. about b. along c. around d. by 13.He could produce no evidence _____ his argument. a. in respect of b. in view of c. in support of d. on account of 14.The government should ________ with the irrational regulations restricting drinking hours. a. break away b. come up c. get away d. do away.. 15. I know him well enough to accept his explanation ____________. a. without question b. by all means c. at any cost d. in any case 16. It was a small country house, but it w