21.Mrs. Lee teaches ________ math. We all like her.A. we B. us C. our D. ours(选择C的同学要注意, teach +人+科目, 而不能用teach +某人的+ 科目)答案: B

　　22.There are many trees on ________ side of the street.A. either B. any C. all D. both(选择D的同学要注意side为单数。选择B的同学要注意：街道只有两边，因此不能用any)答案：A

　　23.________ is the population of the city?A. How many B. What C. How many people D. How much(在问到人口是多少时，其实是在说“人口数是什么”，因此不能用A，要注意排除中文的干扰。)答案：B

　　3

　　介词、连词

　　24.Japan is ________ the east of China.A. in B. to C. on( in 表示在范围里的, on表示紧挨着的; to 表示在范围以外,不接壤)　答案: B

　　25.The postman shouted, “ Mr Green, here is a letter ________ you.”A. to B. from C. for D. of( 选择A的同学要注意to 表示动作的方向, for表示有从属关系或者利益关系)　答案: C

　　26.We can’t do it ________ your help.A. with B. Of C. under D. without(选择C的同学要注意中文的干扰, 借助某人的帮助要用with,反之用without)答案: D

　　27.He hasn’t heard from his friend __________ last month.A. since B. by the end of C. for D. until　　 (选择B的同学要注意B选项为过去完成时的时间;选择C的同学要注意, for+时间段; 选择D的同学要注意不是not…until 句型.until + 句子)答案: A

　　28.I didn’t buy the dictionary yesterday _________ my aunt would give me one.A. until B. because C. if D. before　　 (选择A的同学要注意语境)答案: B

　　29.I’m going to look for another job ________ the company offers me more money.A. after B. unless C. when D. for( 选择其它三项的同学要注意语境, 这里是指除非公司给我更多工资,否则我就要找其它工作.)答案: B

　　30.Don’t hurry. The bus won’t start ________ everybody gets on.A. since B. as C. until D. when　　 (选择D的同学要注意前面是否定.)答案: C

　　31.Please show me _________ to send an e-mail, John. It’s the first time for me to do it.A. how B. what C. when D. where(选择C的同学要注意认真看题，这里的time不是时间，而是指第一次)　答案：A

　　32.You’ve passed the exam. I’m happy ______ you.A. on  B. at  C. in  D. for(选择A的同学要注意记忆词组的准确性.)　答案：D

　　33.I wonder ________ they finished so many different jobs in such a short time.A. why B. how C. when D. where(选择A的同学要注意语境，这里指他们怎么能在如此短的时间里完成如此多的困难的工作.)答案：B

　　34.-- Do you speak English?-- Yes, I speak _________ a little English _______ some French.A. neither, not B. both, or C. either, or D. not >　　(选择C的同学要注意语境.)答案：D

　　35.______ the maths problem is difficult, I’ll try very hard to work it out.A. Though B. When C. Before D. After (选择B的同学要注意语境.不能说当题目难的时候，我将努力.而是说尽管题目难，但我将努力解决.) 答案：A

　　36.The accident took place ________ a cold February evening.A. on  B. in  C. at  D. for(选B的要注意，在特指的早上、下午、晚上，不用in要用on)　答案：A

　　37.He turned ________ the radio because his father was asleepA. on B. down C. up D. over(根据语境：他爸爸睡着了，因此不能用A-打开，也不能用C-调大.D表示反过来)　答案：B

　　38.I don’t know the homework _______ today.A. on  B. in  C. of  D. for(选择C的同学要注意of表示从属关系，要注意中文的干扰.)答案：D

　　39.– Oh, it’s raining heavily.-- Please don’t leave ________ it stops.A. when B. after C. since D. until(选择其它选项的同学要注意读懂句子, 只有把语境搞清楚才能答对问题.)答案: D

　　40.Jane said she would come here ________ 9:00 and 9:30 tomorrow morning.A. from B. at C. between D. around(选择B的同学没有把体看完整; 选择A的同学没有注意到from…to…的搭配.)　答案: C