41. We live in a time ______, more than ever before in history, people are moving about .

　　A. what B. when C. which D. where

　　【答案】B 这里选when而不选which因为如果分析成份的话，time在后半句中担当状语的成份，所以连词要用一个与状语相搭配的连接词。

　　42. The time will come ___ man can fly to outer space freely.

　　A. that B. when C. in that D. which

　　【答案】B本题考察定语从句. when引导定语从句修饰先行词the time,定语从句被will come分割不能用that 排除A,而in that表因为，引导原因状语从句。排除C,若用which前应该有介词at,故选B. 句意是“人类能够在太空自由飞翔的时代将会到来.”

　　43. I know a number of occasions_____ people died from water pollution.

　　A. how B. as C. when D. where

　　【答案】C 句意：我知道一些人们由于水污染而死亡的事件。When people died from water pollution 是修饰occasions 的定语从句，occasions 表示“事件，(某个时候)时刻”,在后面的从句中作时间状语，故用关系副词when , when=on which, which代表occasion.

　　44. I will never forget the ten years ___ we both spent in the little village.

　　A. when B. during which C. which D. in which

　　【答案】C。此句为定语从句。关系代词在从句中做spent的宾语。从句还原一下：we both spent ten years in the little village.

　　45. Great changes have taken place since then in the factory _______we are working.

　　A. where B. that C. which D. there

　　【答案】A where=in which. 从那时起，我们工作的厂子发生的巨大的变化。

　　46. He’s got himself into a dangerous situation _____he is likely to lose control over the plane.

　　A. where B. which C. while D. why

　　【答案】A。考查定语从句连接词的选择。通常先行词是地点名词，且定语从句的引导词在从句中作地点状语时，用where引导定语从句，但有时先行词是非地点名词是，也须用where引导定语从句，表示抽象意义的一种状态，此类词包括point, situation, case等。他处于一种危险的境地，(在这种情况下)他好像不能控制那个飞机了。

　　47. The treatment will continue until the patient reaches the point __ he can walk correctly and safely.

　　A. when B. where C. which D. whose

　　【答案】B 治疗将会持续到他能够安全正确的行走为止。从句缺少状语，连接词用where

　　48. —Do you have anything to say for yourselves?

　　—Yes. there's one point_________ we must insist on.

　　A. why B. where C. how D. /

　　【答案】D we must insist on one point, 从句缺少宾语 用that、which或省略

　　49. In the book, Newton is shown as a gifted scientist who stood at the point in history __ magic ended and science began.

　　A. where B. when C. that D. which

　　【答案】A从句缺少状语，连接词用where

　　50. I can think of many cases ________ students obviously knew a lot of English words and expressions but couldn't write a good essay.

　　A. why B. which C. as D. where

　　【答案】D从句缺少状语，连接词用where

　　51.Already laser guns are being developed ____ could kill an enemy，or bring down an airplane or a missile at a great distance.

　　A. when B. while C. which D. since

　　【答案】C从句缺少宾语 用that、which或省略

　　52. Mr. Leon said in the future，computer would be developed _____ would be small enough to carry in the pocket.

　　A. when B. while C. which D. since

　　【答案】C从句缺少宾语 用that、which或省略

　　53. The film brought the hours back to me _________ I was taken good care of in that faraway village.

　　A. until B. that C. when D. where

　　【答案】C 先行词是hour，表时间，从句缺少时间状语，连接词用when

　　54. Perhaps the day will come ______ people will be able to breathe clean air in cities.

　　A. when B. while C. as D. since

　　【答案】A先行词是day表时间，从句缺少时间状语，连接词用when

　　55. The time is not far away ______ modern communications will become widespread in China’s vast countryside.

　　A. when B. before C. until D. as

　　【答案】A先行词是time，表时间，从句缺少时间状语，连接词用when

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