1.The Netherlands is the only country in Europe which permits euthanasia， ________ it is not technically legal there. 【 C】
A. if
B. otherwise
C. although
D. unless
【答案解析】：本句的意思是“虽然荷兰是欧洲唯一允许安乐死的国家，但是安乐死在荷兰严格说来并不合法”，所以应该填although.
2.Even with the new development in research， only a tiny ________ of all tests are done without using animals. 【 D】
A. variety
B. amount
C. plenty
D. proportion
【答案解析】：本句的意思是：“即使研究有了新的发展，只有一小部分的试验可以不用动物”。因此答案为D.variety 和plenty 分别表示“多样”和“大量的”，意思不合适。amount 后只能接不可数名词，而test是可数名词。
3.________， what could we do？ 【 A】
A. Should it rain tomorrow
B. Tomorrow it should rain
C. If it rains tomorrow
D. If it will rain tomorrow
【答案解析】：A项是对将来的假设。对将来的假设可以用should+动词原形的形式。Should it rain tomorrow=if it should rain tomorrow.
4.It was a small place then compared to _______ it is now. 【 A】
A. what
B. which
C. little
D. few
【答案解析】：what it is是介词to的宾语从句，相当于一个名词。compared to what it is now：与它现在的样子相比。
5.Now many major employers are beginning to demand _______ the completion of school. 【 A】
A. more than
B. rather than
C. other than
D. better than
【答案解析】：more than：多于，不只。句意：现在很多雇主开始不仅仅要求学业的完成。
6.What he had done is _______. 【 C】
A. value
B. of valuable
C. of no value
D. of no valuable
【答案解析】：of+n=adj，可以作表语。of no value：没有一点价值。value是名词，不能作表语，也不能形容主语的性质。B和D都是of+adj的结构，是错误的。
7.A good worker in a key spot could， so _______ as he kept up production， take all the coffee breaks he wanted.【 A】
A. long
B. short
C. much
D. little
【答案解析】：so long as：只要。是固定搭配。
8.Each of us should _______ aside a few minutes to have a rest every day. 【 D】
A. push
B. provide
C. turn
D. set
【答案解析】：set aside：留出，拨出。是固定搭配。
9.In the original test all the animals in a test group are given a substance _______ half of them die. 【B】
A. unless
B. until
C. lest
D. provided
【答案解析】：本题考查词义辨析。until：直到。符合句意，表示given a substance 持续到half of them die.
10.He ________ his poor judgment ________ Jet Lag. 【C】
A. blamed …… for
B. blamed …… to
C. blamed …… on
D. blamed …… at
【答案解析】：此题考查固定词组blame sth. on sb.把……怪到……头上。 [page]
11.—________ fine day it is today！
—Yes， the sunshine is ________ beautiful that I＊d like to go swimming in the sea. 【 D】
A. How， such
B. What a， very
C. How， so
D. What a， so
【答案解析】：考查感叹句和“so…that”的用法。
12.It has been years ________ I returned home. 【 C】
A. after
B. that
C. since
D. when
【答案解析】：译文：我回家已经有好几年了。此题考查连词since的用法。since表示“从（过去某事）以来，以后或到现在”时，主句多用完成时态。又如：Where have you been since I last saw you？自从我上次见到你以后，你到哪去了？
13.The other timing system belongs in our internal clocks， which， left ________， would tie the body to a 25-hour rhythm. 【B】
A. behind
B. alone
C. out
D. aside
【答案解析】：译文：更不用说，另一个定时系统在我们的人体时钟内，它会使人保持在一个25小时的生理节奏上。此题考查关于leave的短语。leave behind意为“留下，放弃”，leave alone意为“更不用说”。 leave out意为“遗漏，忽视”。
14.Some persons gain goal and direction from their tensions　others ________ under pressure. 【 B】
A. fall out
B. fall apart
C. fall back on
D. fall in with
【答案解析】：译文：一些人因为压力达到了目的，而另一些人在压力下则精神崩溃。本题考查短语区分。A.脱落，争吵；B.崩溃，垮了；C.指望，依靠，退到；D.赞成，同意。
15.This type of desk and chair can be adjusted ________ the height of students at different ages. 【 C】
A. with
B. for
C. to
D. in
【答案解析】：译文：这款桌椅可以根据学生的不同年龄调整高度。本题考查短语搭配。be adjusted to调整为…。
16.We cannot leave this tough job to a person ________. 【B】
A. who nobody has confidence
B. in whom nobody has confidence
C. for whom nobody has confidence
D. who everyone has confidence of
【答案解析】：译文：我们不能把这样一份艰巨的工作交给一个没有自信的人。本题考查定语从句，have confidence in sb是固定用法，关系代词whom用作介词in的宾语。
17.I asked him to ________ me a few minutes so that we could go over all the problems. 【C】
A. spend
B. save
C. spare
D. share
【答案解析】：译文：我让他腾出几分钟时间以便我们能一起仔细察看所有的问题。本题考查词汇区分。A.花费；B.节省；C.抽出（时间）；D.分享。
18.Younger children are curious ________ how things workㄛand many of them want to take apart everything within their reach. 【 B】
A. of
B. about
C. at
D. with
【答案解析】：译文：小孩子对事物是如何组成的很好奇，一些孩子总是想把他们够得到的东西都拆开。此题考查短语搭配，be curious about对…好奇。
19.Washing the food down with water as a substitute ________ chewing is not a good habit. 【 B】
A. of
B. for
C. to
D. from
【答案解析】：译文：吃东西的时候，不咀嚼而用水冲下食物是一种不好的习惯。本题考查介词，表目的，应用for.
20.Parents， teachers in schools and communicators in or using the mass media are all capable of ________ our potential interests. 【 C】
A. raising
B. rising
C. arousing
D. arising
【答案解析】：arouse：唤醒，激起。符合句意。raise和rise都有“上升、提高”的意思。arise：出现，发生。