1.The computer of this kind can work ______ than the one of that kind.
A. hundred of times faster
B. a hundred time faster
C. hundred times faster
D. hundreds of times faster
2.When I was young， my grandmother told me that the earth ______ round.
A. is
B. was
C. has been
D. had been
3.—Do you know Jack well?
—Certainly. We ______ friends since ten years ago.
A. were
B. have made
C. have become
D. have been
4.These hamburgers ______ nice， so they have all ______ out.
A. taste， sell
B. are tasted， sell
C. taste， been sold
D. are tasted， been sold
5.We now have ______ fast ways of traveling that this big ocean seems to have grown smaller.
A. so
B. such
C. so a
D. such a
6.I do not wish to ______ your sincerity.
A. reflect
B. reflect on
C. reflect in
D. reflect about
7.The smog is due ______ invisible gases， mostly from automobile exhaust.
A. from
B. to
C. for
D. with
8.______ is accepted as true is relatively， and not absolutely， true.
A. It
B. That
C. What
D. That it
9.How can you keep the machine ______ when you‘re away?
A. run
B. to run
C. running
D. being run
10.Because of his degree， he refused to do ______ he thought “low” work.
A. that
B. what
C. which
D. who
1.正确答案：D
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.正确答案：A
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.正确答案：D
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.正确答案：C
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.正确答案：B
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.正确答案：B
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.正确答案：B
答案解析：due to是固定搭配，意思是：归因于，由于。
8.正确答案：C
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.正确答案：C
答案解析：keep sb doing sth：使某人持续做某事。
10.正确答案：B
答案解析：what在本句中引导do的宾语从句。
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