1.She _____ the film. She knows nothing about it. 【 B 】
A. can‘t see
B. can’t have seen
C. must see
D. mustn‘t have seen
【答案解析】：can‘t have done，表示对过去发生情况的否定推测，意为“不可能已经……”。
2.Let‘s clean the classroom， _______？ 【 B 】
A. won‘t you
B. shall we
C. do we
D. will not you
【答案解析】：Let‘s do sth.表示“建议做某事”，含听话一方在内，故用 shall we.如果用Let us do sth.结构，则用will you？表示请求对方允许。
3.— Shall I tell John about it？
— No，you _____. I don‘t know his telephone number. 【 A 】
A. needn‘t
B. wouldn’t
C. mustn‘t
D. shouldn’t
【答案解析】：needn‘t表示“不必要”；mustn’t表示“禁止”；wouldn‘t表示“拒绝”。
4.Up to now there have been many explanations _______ the cause of sleepwalking. 【 D 】
A. in view of
B. in line with
C. apart from
D. as to
【答案解析】：句子意思为“到目前为止，关于梦游病原因有多种说法”。“关于”用as to，其他in view of “考虑到，由于”；in line with“符合”； apart from“除去”，意思不符合。
5.What you said reminds me _______ something I read a few days ago 【 D 】
A. for
B. by
C. from
D. of
【答案解析】：remind sb of sth是固定搭配，意思是：提醒某人某事。
6.My skirt looks similar _______ yours. 【 B 】
A. with
B. to
C. about
D. in
【答案解析】：similar常与to搭配，所以答案是B.
7.She took a spoonful and tasted it _______ it was hot. 【 A 】
A. in case
B. in case of
C. in the case of
D. in that case
【答案解析】：in case：以防。
8.Don‘t wait for me if you _______. 【 B 】
A. have a hurry
B. are in a hurry
C. have a speed
D. are in a speed
【答案解析】：in a hurry是固定短语，意思是：匆忙，赶忙。
9.It‘s raining _______. We have to stay at home instead of going fishing. 【 C 】
A. badly
B. hardly
C. heavily
D. strongly
【答案解析】：形容“雨大”用heavily.句意：雨下得很大。我们只好待在家里，不能去钓鱼了。
10.______ he speaks softly is no proof that he is kind. 【 C 】
A. Since
B. As
C. That
D. Because
【答案解析】：that做主语从句he speaks softly的引导词，没有实际意义。[page]
11.Copernicus maintained that the earth ______ round the sun. 【 A 】
A. moves
B. moved
C. moving
D. move
【答案解析】：表述永恒的真理或客观规律用一般现在时，不管主句谓语用什么时态。而“地球绕着太阳转”是客观规律，所以选A.
12.He was very ______ to go，but he had no choice. 【 C 】
A. ready
B. willing
C. reluctant
D. hesitant
【答案解析】：reluctant“不愿的，勉强的”：“他非常不愿意去，但他别无选择”，所以，reluctant用于本句合适。Hesitant“踌躇的，犹豫的”；ready“准备好的”；willing“愿意的”。
13.Two-thirds of his property ______ lost in the fire. 【 A 】
A. was
B. were
C. are
D. have been
【答案解析】：以分数限定的名词做主语时，谓语的单复数应同该名词保持一致，而不管分数是单数还是复数。此句中property（财产）是不可数名词，故用单数形式的动词。
14.Remember， nothing hurts concentration ______ reading too slowly. 【 C 】
A. rather than
B. as well as
C. more than
D. instead of
【答案解析】：nothing…more than是习惯用语，意思为“什么也比不上…更…”。句子意思为：记住，什么也比不上读得太慢更伤害注意力的集中了。
15.Many people have made a ______ to a physical fitness program so as to maintain good health. 【 B 】
A. decision
B. commitment
C. contribution
D. difference
【答案解析】：本句是带有不定式短语作目的状语的简单句。句意为“许多人都投入了身体锻炼计划，以保持良好的健康”。make a commitment“投入，保证”符合题意。
16.Scientists could see many things that most people would ______ to see. 【 B 】
A. feel
B. fail
C. fall
D. fill
【答案解析】：句子意思为“科学家能注意到大多数人注意不到的许多事物”。
17.She passed the examination ______ she studied very little. 【 C 】
A. in spite of
B. despite
C. though
D. in that
【答案解析】：空格前后句子的意思是相反的，由此可知空格处应该用一个表示转折的词。in spite of是介词短语，后面不能跟从句；despite是介词，也不能引导从句。in that意思是“既然，因为”，不符合句意。所以只有C项正确。句意：她通过了考试，虽然她没怎么用功。
18.The father wished the twins to be doctors， but ______ of them liked to study medicine. 【 B 】
A. both
B. neither
C. either
D. none
【答案解析】：句中用了but，表示转折，所以A答案错误。either表示“（两个中的）一个”，也不符合句意。neither表示两者都不，符合句意。none是指三者以上的人或物，而句子中说的是the twins，是两个人，所以也不正确。句意：父亲希望这对双胞胎成为医生，但他们没有一人喜欢学医。
19.John is so strongly built that he looks as if he ______ an elephant. 【 D 】
A. lifts
B. is lifting
C. lifted
D. could lift
【答案解析】：as if引导的是与现在事实相反的虚拟。
20.The book was sold ______ 50 dollars. 【B】
A. in the price of
B. at the price of
C. with the price
D. of all the price in
答案解析：at the price of是固定搭配，意思是：以…的价钱。