1.He is good at English， _______ we all know. 【 B 】
A. that
B. as
C. whom
D. what
【答案解析】：as作关系代词可以单独用来引导非限制性定语从句。这时as所指代的不是主句中某个名词，而往往指代整个主句的含义。as在从句中可以作主语、宾语。从句可放在主句后，也可置于主句前。在本句中，as作宾语。
2.The pen _______ he is writing is mine.  【 A 】
A. with which
B. in which
C. on which
D. by which
【答案解析】：with which是“介词+关系代词”结构，常用来引导定语从句。with有“用”的意思，介词之后只能用which，不能用that. with which在定语从句中作状语，即he is writing with a pen.
3.Do you know the year _______ the Chinese Communist Party was founded？  【 C 】
A. which
B. that
C. when
D. on which
【答案解析】：when是关系副词，表示时间，在定语从句中作时间状语。
4.The place _______ interested me most was the Children‘s Palace.  【 A 】
A. which
B. where
C. what
D. in which
【答案解析】：which用作关系代词，在定语从句中作主语。
5._____ she was very tired， she went on working.  【 B 】
A. As
B. Although
C. Even
D. In spite of
【答案解析】：although：虽然，尽管。符合句意。
6.Read it aloud _______ the class can hear you.  【 A 】
A. so that
B. if
C. when
D. although
【答案解析】：so that：以至于。可以引导目的状语从句，符合句意。
7.By no means _______ look down upon the disabled. 【 A 】
A. should we
B. we should
C. we shall
D. we ought
【答案解析】：by no means 带否定意义，放在句首时句子部分倒装。
8._______ today， he would get there by Friday.  【 C 】
A. Would he leave
B. Were he leaving
C. Were he to leave
D. Had he left
【答案解析】：这是省略连词if 的表示将来虚拟的倒装结构。根据所讲过的表示将来的虚拟句的结构：should + do或 were to do ，故首先应该排除A和D，而B则表示进行的虚拟结构，因而正确的选项应该是C.
9._______， it is quite easy to drill a hole in it with a eraser.  【 B 】
A. Hard a diamond is
B. Hard as a diamond is
C. As a diamond is hard
D. How hard is a diamond
【答案解析】：A缺少连词，C项as引导原因状语从句与主句意义正好相反。B项为让步状语从句，把被强调部分放在句首，此处as可用though来代替。
10.If we _______ everything ready by now， we should be having a terrible time tomorrow.  【 A 】
A. hadn‘t got
B. didn’t get
C. wouldn‘t have got
D. wouldn’t get
【答案解析】：译文：如果到现在一切都没准备好，我们明天就会很不好过。此题考查虚拟语气，表示与现在事实相反，从句要用过去时。 [page]
11.Was it in that school _______ he developed his interest in Physics？  【 D 】
A. which
B. from which
C. where
D. that
【答案解析】：译文：他是在那所学校才逐渐对物理感兴趣吗？此题考查强调句型的疑问句形式。It is／was…that…是强调句型，变成疑问句时要把is或was提前。
12.We often hear old people wishing they ________ young again.  【 B 】
A. are
B. were
C. had been
D. will be
【答案解析】：前边为现在时陈述句，而宾语从句“但愿再年轻”是不可能再实现的现在虚拟句，不管人称变化都用were.
13._______ he says or does won‘t make me change my mind at all.  【 A 】
A. Whatever
B. However
C. Which
D. How
【答案解析】：Whatever引导主语从句。句意：无论他说什么做什么，我都不会改变主意。
14.Only when you have finished your homework _______ go home.  【 A 】
A. can you
B. would you
C. you will
D. you can
【答案解析】：only修饰句子的状语，位于句首，要部分倒装。若only修饰的状语从句不倒装，则主句要倒装，答案为A.
15.The ants， hardworking _______ they are， have their time for play.  【 B 】
A. if
B. as
C. since
D. though
【答案解析】：本题的考点是：as引导的让步状语从句要倒装。这句话的语序应该是：Hardworking as they are， the ants have their time for play. “hardworking”是形容词作表语，在as 引导的让步状语从句中提前。这句话的意思是：尽管蚂蚁很努力，他们还是有时间玩。
16.Some states have an income tax similar to ______ of the federal government.  【 A 】
A. that
B. those
C. this
D. these
【答案解析】：that在这里指代的是income tax，这句话的意思是：有些州有一个和联邦政府一样的所得税。
17.______ the examination， I would have gone to the football match last night.  【 A 】
A. But for
B. In spite of
C. Because of
D. Provided that
【答案解析】：本题的考点是：虚拟语气，but for 表示“要不是”的意思，后面句子的谓语动词用虚拟语气would have gone表示与过去事实相反的假设，本句的意思是：要不是考试，昨晚我就去看足球比赛了。
18.He had the ______ over other boys of having had very good preschool education.  【 B 】
A. ability
B. advantage
C. aggression
D. alternative
【答案解析】：本题是词义辨析题，advantage优势，长处，“比…有优势”经常用“advantage over sb.”；ability 能力；aggression 侵犯，侵略；alternative两者选择其一的，供选择的东西；这句话的意思是：他比其他的孩子有优势，他有非常好的学前教育。
19.The Atlantic Ocean is only half as big as the Pacific， ______ it is still very large.
A. but  【 A 】
B. and
C. so
D. therefore
【答案解析】：前后并列句的意思有转折，所以用but.
20.It was there， the police believe， ______ she was able to activate the recorder she kept in her bag.  【 C 】
A. until
B. which
C. that
D. when
【答案解析】：考查强调句的用法。强调句的结构是：It +动词be +强调部分 + that （who） + 其它成分。the police believe 为插入语。