虽然考研英语试题中取消了词汇单选题，但是，从近几年的完型填空的词汇考点可以明显看出，很多比较难的词汇考点是以前历年词汇单选题的考查点。例如：

28. Some of the most important concepts in physics ________their success to these mathematical systems.

[A] oblige [B]owe [C]contribute [D]valuable

正确答案是(B)

题目分析：(A)oblige ...(to do)："强迫……做某事"。Oblige还有“施惠;帮…的忙”的含义，例如：Please oblige me by closing the door.请帮我把门关上。I’m much obliged to you.我非常感谢你帮忙。这一用法是2004年考研英语翻译第62题的一个重要考点。(B)owe ....(to )："多亏，感谢，把…归功于"。(C)contribute...(to)："献出，把……花费在……"，contribute to导致，造成。(D)attribute...(to)："把……归属于……"。显然，(B)为正确答案。这句话的意思为：一些物理学中最重要的概念的成功应该归功于这些数学体系。而不能把物理学中概念的成功"归属于"数学体系。

29. As your instructor advised, you ought to spend your time on something __________ researching into.

[A] precious [B] worth [C] worthy [D] valuable

正确答案是(B)

题目分析：(A) precious："宝贵的;完全的"。(B)worth："值得的"。worth后面一般跟动名词表示"值得做某事"，并且用主动形式表达被动的含义，而(C)worthy也表示"值得做某事"时，一般的用法是worthy of sth.或worthy to be done。此外，worthy有受人尊敬的意思，这一含义，在2006年考研阅读理解第二篇文章第二段从到了这一含义，“the worthy residents”. (D)valuable："有价值的，贵重的"，比较词义和用法，(B)为最佳答案。

30. As a defense against air-pollution damage, many plants and animals _________ a substance to absorb harmful chemicals.

[A] relieve [B] release [C] dismiss [D] discard

正确答案是(B)

题目分析：(A) relieve："减轻, 解除, 援救, 救济"。(B)release："释放;免除;发行，发布"。(C)dismiss"解散;解雇;消除"。(D)discard:"抛弃，解雇"。此题目意思是：作为对空气污染的防护措施，许多植物和动物释放出一种可以吸收有害化学成分的物质。因此应选择(B)。against是1998年完形填空的43题的考点。

31. Without the friction between their feet and the ground, people would ________ be able to walk.

[A] in no time [B] by all means [C] in no way [D]on any account

正确答案是(C)

题目分析：此题目考查介词和名词搭配的固定词组的含义。(A)in no time："立即，立刻"，=at once.(B)by all means："务必"。(C)in no way："不可能"。(D)on any account：“无论如何”，往往用于not on any account"决不"。根据题意(C)是正确答案。

32. While typing, Helen has a habit of stopping ________ to give her long and flowing hair a smooth.

[A] occasionally [B] simultaneously [C] eventually [D] promptly

正确答案是(A)

题目分析：(A) occasionally："偶尔，有时"。(B)simultaneously："同时"=at the same time。(C)eventually"最终，最后"，一般放在句首。(D)promptly："敏捷地，迅速地"。根据上下文，应选择(A)。上下文为：打字的时候，Helen习惯于偶尔停下来梳理她的长而飘逸的头发。

33. One reason for the successes of Asian immigrants in the U.S. is that they have taken great __________ to educate their chidren.

[A] efforts [B] pains [C] attempts [D] endeavours

正确答案是(B)

题目分析：(A) efforts，一般不与take搭配，常用于make efforts："作出许多努力"。(B)pains：与take搭配，表示"费尽苦心"。(C)attempts：一般也用于make attempts(尝试)这一搭配。(D)emdeavours：一般不与take搭配，而用于do endeavours和make endeavours表示"努力，尽力"。根据词汇搭配和上下文，(B)为最佳答案。

34. If any man here does not agree with me, he should _________ his own plan for improving the living conditions of these people.

[A] put on [B] put out [C] put in [D] put forward

正确答案是(D)

题目分析：该题目考查put一词的搭配。(A)put on："穿上，戴上"。(B)put out："伸出，解雇;熄灭"。(C)put in："插入，引入"。(D)put forward："促进;提出，倡议"。根据上下文"计划"只能是"提出"，因而(D)为正确答案。

35. I support your decision, but I should also make it clear that I am not going to be _________ to it.

[A] connected [B] fastened [C] bound [D] stuck

正确答案是(C)

题目分析：(A) (be) connected一般不与to搭配，而用be connected with："与……有联系。"(B)(be) fastened to："被紧紧抓住"，fasten的含义是“拴紧, 使固定, 系, 强加于”。(C)be bound to sth："必定"，"受……约束"的意思。这符合题意，故应选(C)。(D)stick to："坚持"，一般不用被动语态。这句话的意思是：我支持你的决定，但我必须讲清楚，我不打算受到它的约束。

36. The English language contains a (n) _________ of words which are comparatively seldom used in ordinary conversation.

[A] altitude [B] latitude [C] multitude [D] attitude

正确答案是(C)

题目分析：(A) altitude："高度"。(B)latitude："纬度"。(C)multitude："大批"，可用于a multitude of+n.(pl)，相当于2003年第30题的考点词汇multiple。(D)attitude："姿势;态度"。从上下文和用法上都只有(C)为正确答案。

37. In my opinion, you can widen the ________ of these improvements through your active participation.

[A] dimension [B] volume [C] magnitude [D] scope

正确答案是(D)

题目分析：(A) dimension："尺寸, 尺度, 维(数), 度(数)"。(B)volume："容积，体积，容量"。(C)magnitude："大小, 数量, 巨大, 广大, 量级"。(D)scope："范围"，从上下文看，"扩展"只能是范围、面积等，而不能是"尺寸、体积"等，所以(D)scope是正确答案。

38. Your improper words will give _________ to doubts concerning your true intentions.

[A] rise [B] reason [C] suspicion [D] impulse

正确答案是(A)

题目分析：(A) (give) rise (to)："导致，引起，产生"。(A)与题意吻合，故应选(A)。(B)(give) reason (to):"对……进行解释"。(C)(give)suspicion (to)："对……进行怀疑"。(D) (give) impulse (to)："促进，增进"。此句话的意思是：不恰当的话会引起对真正意图的怀疑。

39. The news item about the fire is followed by a detailed report made __________.

[A] on the spot [B] on the site [C] on the location [D] on the ground

正确答案是(A)

题目分析：本题考查词组含义。(A)on the spot："在现场，就地"。(B)on the site：没有这一搭配。(C)on the location："在外景"。(D)on the ground："在地面上,当场"。根据上下文，(A)为正确答案。

40. The remarkable _________ of life on the Galopagos Islands inspired Charles Darwin to establish his theory of evolution.

[A] classification [B] variety [C] density [D] diversion

正确答案是(B)

题目分析：classification："分类，类别;分级"。(B)variety："变化, 多样性, 种种, 品种, 种类"。a variety of“多种的”。(C)density："浓度，密度"。(D)diversion："转移, 转换, 牵制, 解闷, 娱乐"。根据上下文，正确答案应为(B)variety。此句的意思为：Galopagos岛上异常的生物变种启发了查尔斯达尔文建立了自己的进化理论。