1.The computer of this kind can work ______ than the one of that kind. 【 D 】
A. hundred of times faster
B. a hundred time faster
C. hundred times faster
D. hundreds of times faster
【答案解析】：表示“数百”、“数千”、“数百万”等不确切数目时，要用hundreds / thousands / millions of结构表示。D中hundreds of times意思是“数百倍”。答案为D.
2.When I was young， my grandmother told me that the earth ______ round. 【 A 】
A. is
B. was
C. has been
D. had been
【答案解析】：the earth is round是客观真理，所以不管句子其它部分用什么时态，这个句子都用一般现在时。
3.—Do you know Jack well？
—Certainly. We ______ friends since ten years ago. 【 D 】
A. were
B. have made
C. have become
D. have been
【答案解析】：根据句意可知应该用完成时，所以A答案错误。have been…表示状态，可以和表示一段时间的短语连用。have made和have become都是瞬间动词，不能和表示一段时间的短语连用。
4.These hamburgers ______ nice， so they have all ______ out. 【 C 】
A. taste， sell
B. are tasted， sell
C. taste， been sold
D. are tasted， been sold
【答案解析】：taste是系动词，taste nice构成系表结构，不用被动语态。但第二个空格处应该用被动语态，因为hamburgers与sell out之间是被动的关系。所以答案是C.
5.We now have ______ fast ways of traveling that this big ocean seems to have grown smaller. 【 B 】
A. so
B. such
C. so a
D. such a
【答案解析】：such可以修饰可数名词单复数和不可数名词，名词前可以有形容词作定语，其结构是“such +a/an+形容词+可数名词单数”，“such+形容词+可数名词复数/不可数名词”。
6.I do not wish to ______ your sincerity. 【 B 】
A. reflect
B. reflect on
C. reflect in
D. reflect about
【答案解析】：reflect on：思索，思考，有时表示“怀疑”。根据句意，应该选reflect on.
7.The smog is due ______ invisible gases， mostly from automobile exhaust. 【 B 】
A. from
B. to
C. for
D. with
【答案解析】：due to是固定搭配，意思是：归因于，由于。
8.______ is accepted as true is relatively， and not absolutely， true. 【 C 】
A. It
B. That
C. What
D. That it
【答案解析】：本句中，what is accepted as true是主语从句，在句子中作主语。
9.How can you keep the machine ______ when you‘re away？ 【 C 】
A. run
B. to run
C. running
D. being run
【答案解析】：keep sb doing sth：使某人持续做某事。
10.Because of his degree， he refused to do ______ he thought “low” work. 【 B 】
A. that
B. what
C. which
D. who
【答案解析】：what在本句中引导do的宾语从句。 [page]
11.She hasn‘t decided with ______ she should first make contact. 【 B 】
A. who
B. whom
C. how
D. which
【答案解析】：with用于与make contact搭配。本题使用的短语是make contact with sb.whom在本句中引导的句子做介词with的宾语。由于位于介词后面，所以用宾格形式whom.
12.That is ______ we differ. 【 B 】
A. that
B. where
C. what
D. whether
【答案解析】：where在本句中引导表语从句。句意：这就是我们的不同之所在。
13.Another worry is that telecommunication systems may isolate people ______ each other. 【 A 】
A. from
B. for
C. with
D. to
【答案解析】：isolate sb/sth from sb/sth是固定搭配。
14.If I ______ in your place， I wouldn‘t trouble him. 【 A 】
A. were
B. had been
C. could be
D. was to be
【答案解析】：本句是对现在的虚拟，所以条件状语从句用过去时。同时在虚拟语气中，一般不用was而一律用were，所以答案是A.
15._______ the moon moves round the earth is well known to all of us. 【 A 】
A. That
B. What
C. When
D. As
【答案解析】：本题的考点是：That引导的主语从句，注意that引导的主语从句在句中只起到连接作用，没有意义，也不做任何成分。
16.I doubt _______ they can complete the bridge ahead of time. 【 A 】
A. whether
B. that
C. why
D. what
【答案解析】：doubt 用在肯定句中，之后的宾语从句用 whether 或 if 引导。用在否定句中，后接宾语从句用 that 引导。
17.The question he asked was _______ I come here. 【 B 】
A. that
B. how
C. what
D. because
【答案解析】：这里表示的是：来的方式，要用how.
18.Too many people are indifferent _______ others‘ troubles. 【 B 】
A. with
B. to
C. of
D. about
【答案解析】：indifferent，形容词，“漠然的、冷淡的”，常用indifferent to.
19.Let us see how dictionaries are made and how the editors _______ definitions. 【 B 】
A. lead to
B. arrive at
C. reach for
D. approach to
【答案解析】：本题考查词义辨析。arrive at：获得（结果）；达到（目的）。
20.Shanghai is the place _______ I was born. 【 B 】
A. on which
B. in which
C. when
D. that
【答案解析】：出生在某地，要用介词in.此句话中，in which=where.