[26] The medicine _____ natural plants.
A. is made of B. is made from
C. is made in D. is made into
[答案] B。 制成成品看不出原材料应该用be made from。
[27] The beef is too expensive. I won’t buy it _____.
A. at that price B. at a that price
C. on that price D. in that price
[答案] A。 以…价格或速度用介词at。
[28] Three students in ten will go and _____ to stay in the classroom.
A. the rest are B. the rest is
C. the other are D. the other is
[答案] A。 rest 可以代替可数名词也可以代替不可数名词，谓语用单数还是用复数就看它代替的是什么名词了。
[29] We were about to leave the classroom _____ it began to rain.
A. while B. when
C. as D. before
[答案] B。 be about to do sth. when "…正要干某事，这时…"。
[30] After we walked ______ the forest, and ______ a river, we arrived at that small village.
A. across; across B. through; across
C. across; through D. through; through
[答案] B。 穿过两边有高度的地方用介词through;穿过广阔的海洋，沙漠，平原用across。
[31] Please say "Hi" to Bob ______ me.
A. to B. for
C. about D. from
[答案] B。 请你代我向某人问好应用say Hi to sb. for me。
[32] _____ is the population of your country?
A. How B. what
C. How many D. How many
[答案] B。 就名词population提问"多少"时，可用what或how large。
[33] What _____ to Joan last night? What did she cry for?
A. was happened B. happened
C. was happening D. had happened
[答案] B。 昨天晚上发生了什么事，一般用过去时态;happen不能用被动语气。
[34] Old McDonald gave up smoking for a while, but soon _____ to his old way.
A. returned B. returns
C. was returning D. had returned
[答案] A。 时态题。连词but前后的时态应该基本一致。
[35] He wrote to his friends ______ information.
A. asked for B. to ask for
C. ask for D. asks for
[答案] B。 不定式表示目的。
[36] Tom kept quiet about the accident ____ lose his job.
A. so not as to B. so as not to
C. so as to not D. not so as to
[答案] B。 so as to 中的to 是不定式符号，不定式的否定形式是将not放在不定式符号之前。
[37] He was named Robert _____ his father by mother.
A. to B. upon
C. after D. under
[答案] C。 name sb. after …"根据….的名字命名"。
[38] -----I’m going to Beijing nest week. Do you have anything _____ there? ------ No, but thank you all the same.
A. taken B. to take
C. taking D. to be taken
[答案] D。 该句的主语you发不出take的动作，故用被动形式。
[39] The heavy snow stopped the farmers ______ in the fields.
A. working B. work
C. to work D. works
[答案] A。 stop sb. (from) doing sth. 阻止某人做什么。
[40] The result of the experiment was very good, _____ we hadn’t expected.
A. when B. that
C. which D. what
[答案] C。 非限制性的定语从句，which代替前面的句子。
[41] She reached the top of the hill and stopped ______ on a rock by the side of the path.
A. to have rested B. resting
C. to rest D. rest
[答案] C。 不定式表示目的。
[42] Whom can you trust, if not _______ ?
A. himself B. he
C. him D. his
[答案] C。 这儿是个省略句，作宾语。
[43] In the USA, he made a lot of friends ______ English well to make himself ______.
A. learn; understand B. to learn; understood
C. learning; understand D. learned; understood
[答案] B。 第一个空是不定式作目的状语;第二个空是过去分词作宾补。
[44] He kept the light in his room ______ the whole night.
A. burnt B. burning
C. burn D. to burn
[答案] B。 现在分词短语作宾补。
[45] The world is _____ seven continents and four oceans.
A. made up of B. made out of
C. made from D. made in
[答案] A。 be made up of表示由什么组成;be made of/ from/ out of表示由制成。
[46] We started early ______ before dark.
A. in order to reach B. in order that arrived
C. so as to arrive D. so that got to
[答案] C。 不定式表示目的;reach是及物动词要跟宾语。
[47] Be sure to ______ your wife when we go to the party this evening.
A. bring B. take
C. get D. carry
[答案] A。 bring带来;take带走;carry去取来。
[48] They will complete the work ______.
A. after a few weeks’ time B. in a few weeks’ time
C. after a few weeks’ time D. in a few week’s time
[答案] B。 在将来时态的句子中，时间状语一般用in引导的短语。
[49] When and where to build the new factory ______ yet.
A. is not decided B. are not decided
C. has not decided D. have not decided
[答案] A。 不定式短语做主语谓语动词用该用单数。
[50] I need one more stamp before my collection ______.
A. had completed B. completes
C. has been completed D. is completed
[答案] D 主句是将来时态(包括含有情态动词)，时间或条件状语从句中用现在时态
