21. It is known to all that _______ you exercise regularly, you won’t keep good health. (2005重庆卷)
A. unless B. whenever C. although D. if
【答案】A。
【考点】考查状语从句的用法。
【解析】四个选项分别填入句中，只有填A句意最通顺。众所周知，如果你不经常锻炼，你就没有好的身体。又如：Her bank warned that unless she repaid the overdraft she could face legal action. 银行警告她如果不偿还透支钱款，她将面临诉讼。
22. ―Victor certainly cares too much about himself.
―Yes. He’s never interested in what _______ is doing. (2005重庆卷)
A. no one else B. anyone else C. someone else D. nobody else
【答案】B。
【考点】考查不定代词的用法。
【解析】对话的前面一句说“维克托太过关心自己”，很显然，其言外之意就是“他对其他任何人在做什么从不感兴趣”，故选B。
23. ― My family usually goes skating for vacation. I like skating, but I want to try something different this year.
― _______ (2005重庆卷)
A. Let’s go. B. Cheer up. C. Like what? D. Take care.
【答案】C。
【考点】考查交际口语的用法。
【解析】由语境可知，是请对方举个与skating不同的活动的名称，即“比如说什么呢？”，此处的like意为“比方说，例如(=for example)”。
24. His idea of having weekly family meals together, which seemed difficult at first, has _______ many good changes in their lives. (2005重庆卷)
A. got through B. resulted from C. turned into D. brought about
【答案】D。
【考点】考查短语动词的用法。
【解析】只有用bring about(引起，导致)才与语境相符。其他选项的意思是：get through通过，完成；result from(后接原因)由于……的结果；turn into变成(=become)。句意是：一周的家庭聚餐的主意，开始似乎很难，但现在已经给他们的家庭生活带来了许多良好的变化。
25. ―What’s wrong with your coat?
―Just now when I wanted to get off the bus, the man next to me _______ on it. (2005重庆卷)
A. sat B. had sat C. had been sitting D. was sitting
【答案】C。
【考点】考查动词时态的用法。
【解析】句子大意为：刚才我想下公共汽车时，(我才发现)靠近我坐的那个人一直坐在我的外衣上。表示从过去某一时刻开始一直延续到另一过去时间仍在进行的动作或状态用过去完成进行时。
26. Daddy didn’t mind what we were doing, as long as we were together, _______ fun. (2005重庆卷)
A. had B. have C. to have D. having
【答案】D。
【考点】考查非谓语动词的用法。
【解析】句中已有谓语were together，又没有and，应当用非谓语动词，排除选项A和B；“玩得快乐”与“在一起”是同时发生的，用现在分词作状语，表示伴随情况，所以选D。再说，不定式作状语，前面通常不用逗号。
27. _______, he talks a lot about his favorite singers after class. (2005重庆卷)
A. A quiet student as he may be B. Quiet student as he may be
C. Be a quiet student as he may D. Quiet as he may be a student
【答案】A(ask.yygrammar.com/)。
【考点】考查让步从句的倒装与词序。
【解析】as作“虽然”解，引导让步状语从句时，一般将表语或状语提到句首，当作表语的名词前没有形容词修饰时，单数名词前的冠词通常省略，但此处的名词student前有形容词quiet修饰，冠词a不省略。
28. ―What are you going to do this afternoon?
―I am going to the cinema with some friends. The film _______ quite early, so we _______ to the bookstore after that. (2005重庆卷)
A. finished, are going B. finished, go C. finishes, are going D. finishes, go
【答案】C。
【考点】考查动词时态的用法。
【解析】由问句和答语I am going…可知，要用将来时态，排除选项A和B；电影的开始和结束是影院在时刻表中已有的计划，用一般现在时表示，表示最近的打算或安排，可用现在现进时表示。
29. Millions of pounds’ worth of damage _______ by a storm which swept across the north of
A. has been caused B. had been caused C. will caused D. will have been caused
【答案】A。
【考点】考查动词时态与语态的用法。
【解析】由过去式swept和last night可知，要用过去时态，排除选项C和D；此处没一个相比较的过去时间或动作来说明是“过去的过去”，不用过去完成时，排除选项B；只有选项A正确，这里用现在完成时强调昨天晚上的这场暴风雨所造成的影响现在依然存在。
30. ―You know, Bob is a little slow _______ understanding, so…
―So I have to be patient _______ him. (2005重庆卷)
A. in, with B. on, with C. in, to D. at, for
【答案】A。
【考点】考查介词的用法。
【解析】句中slow意为“迟钝的，笨的，理解慢的”，be slow in understanding指“理解慢”；be patient with sb. 指“对某人有耐心”。句意为：“你是知道的，鲍勃在理解方面慢一点，所以……”“所以我得对他有耐心。”
31. ―What should I do with this passage?
― _______ the main idea of each paragraph. (2005重庆卷)
A. Finding out B. Found out C. Find out D. To find out
【答案】C。
【考点】考查省略句的用法。
【解析】由问句可知完整的答语应是You should find out…，口语中承上省略了You should，所以就成了Find out…。句意为：“要我拿这篇文章做些什么？”“归纳每个段落的中心思想。”
32. Mark was a student at this university from 1999 to 2003, _______ he studied very hard and was made Chairman of the Students’ Union. (2005重庆卷)
A. during which time B. for which time C. during whose time D. by that time
【答案】A。
【考点】考查定语从句的用法。
【解析】前后都是句子，之间无连词，后句应为非限制性定语从句，排除选项D；“他学习努力并被选为学生会主席”应是“在1999至2003年这个期间里”所发生的事，所以用during which time。
33. I was on the highway when this car went past followed by a police car. They _______ at least 150 kilometers an hour. (2005重庆卷)
A. should have been doing B. must have been doing
C. could have done D. would have done
【答案】B。
【考点】考查情态动词的用法。
【解析】因为“我”当时也在公路上，应是有把握的肯定推测，故用情态动词must。must后接完成进行式，表示过去某时正在发生的某情况。句意为：我当时正在公路上行驶，这时一辆警车跟随着着这辆车从旁边经过。它们当时的速度至少是每小时150公里。又如：He must have been working late 他一定工作到很晚。He must have been living here. 他当时一定住在这里的。
34. The old lady’s hand shook frequently. She explained to her doctor _______ this shaking had begun half a year before, and _______, only because of this, she had been forced to give up her job. (2005重庆卷)
A. when, how B. how, when C. how, how D. why, why
【答案】C。
【考点】考查从句引导词的用法。
【解析】根据half a year before（半年前）可知第一空不能填when，即可排除A；再根据because of this可知第二空不能填why，即可排除D。比较B和C，选项C填入句中意思更通顺。句意为：这位老太太的手经常颤抖。她向医生解释这颤抖是在半年前如何开始的，以及就因为这个原因她是如何被迫辞掉工作的。
35. ―We missed you at this morning’s meeting, Diana.
― _______, but if I hadn’t had to meet a friend, I would have been there. (2005重庆卷)
A. Me, too B. I’m sorry C. Never mind D. Thank you
【答案】B(http://www.yygrammar.com/)。
【考点】考查交际口语的用法。
【解析】由but引出虚拟语气可知，“我”没去参加今天早上的会议，所以用I’m sorry。句意为：“戴安娜，我们在今天上午的会议上没有见到你啊。”“对不起，要不是我不得不去见一位朋友，我就会去开会了。”