TIP：should we succeed 为倒装结构，相当于if we should succeed。
4. Having considered the problem for a while she thought better ______ her first solution. A. to B. than C. from D. of
参考答案： D
TIP：think better of something为一词组，表示“认为??更好”。
5. If that idea was wrong, the project is bound to fail, ______ good all the other ideas might be. A. whatever B. though
C. whatsoever D. however
参考答案： D
TIP：however表示让步，相当于no matter how。
6. The less the surface of the ground yields to the weight of the body of a runner, ______ to the body.
A. the greater the stress B. the stress is greater C. greater the stress is D. greater is the stress
参考答案： A
TIP：这是一个the more ... the more ... 的比较结构，可以省略谓语动词。
7. That's your sister, ______? A. isn't it? B. isn't that? C. isn't she? D. aren't you?
参考答案： A
TIP：这是一个反意（附加）疑问句，当句子的主语为that，this时，附加部分的代词用it。
8. It's high time we ______ a rest. A. have B. had
C. are having D. should have
参考答案： B
TIP：在It is high / about time that ...句型中，that从句中的谓语动词应用一般过去时。
9. If you ______, you'd better go outside in the fresh air. A. faint
B. have fainted C. are going to faint D. will faint
参考答案： C
TIP：If从句中的一般现在时无现在语意，与主句不符；完成体不合题意。If从句中一般不用will将来时，只能用be going to形式表示“如果现在有迹象表明你将要昏倒的话”，使从句与主句表达的现在语意相照应。
10. I don't know ______. A. why do this
B. why having done this C. why doing this
D. why we ought to do this
参考答案： D
TIP：why引导子句时不可采用动词的非限定形式。
11. The man over there is ______ our principal. A. no other but B. not other than C. no one than D. none other than
参考答案： D
TIP：none other than“（不是别人）正是??”，表示惊奇。
12. No one can walk the wire without a bit of fear unless ______ very young. A. having been trained
B. trained
C. to be trained D. being trained
参考答案： B
TIP：用 -ed 形式同时表示完成和被动。
13. — When can we come to visit you? — Any time you feel ______. A. for it B. to it C. like it D. so
参考答案： C
TIP：feel like为固定搭配，可跟-ing分词，表示“想要”。
14. His honesty is ______ : nobody can doubt it. A. in question
B. out of the question C. beside the question D. without question
参考答案： D
TIP：without question“毫无问题”，in question“被怀疑，有问题”，out of the question“不可能”，beside the question“离题”。
15. This is a most peculiar letter. What do you ______ of it? A. gather B. make C. get D. feel
参考答案： B
TIP：make of something为一动词词组，意为“理解”，常与 nothing, anything, what等代词连用。
16. Now that we've identified the problem, we must decide on an appropriate course of ______. A. action B. progress
C. solution
D. development
参考答案： A
TIP：a course of action“行动途径”。
17. Since the couple couldn't ______ their differences, they decided to get a divorce. A. reconcile B. identify C. adjust D. coincide
参考答案： A
TIP：reconcile“使和解”。
18. We attended a ______ of the new manufacturing process. A. demonstration B. display C. showing
D. manifestation
参考答案： A
TIP：demonstration“演示”，display和showing“展览”，manifestation“表明，表现形式”。
19. How many people do you think his car would ______? A. occupy B. hold C. fit D. load
参考答案： B TIP：hold“容纳”，occupy“占据，占用”，fit“使??适合”，load“装载”。
20. It never ______ my mind that he might refuse the request. A. passed B. filled C. crossed D. occurred
参考答案： C