第1题

　　When an organism is completely encapsulated and preserved, it becomes a fossil, therefore turning into evidence of things that once lived.

　　A thereby B as a result of C so D in the end

　　【正确答案】：A

　　【答案解析】Therefore 和 thereby 均为副词，表“因此”，但 therefore 后通常跟一个 句子，而 thereby 后常接现在分词作状语。as a result of 由于(as a result 才表“因此”)，因此 A 为答案。

　　第2题

　　His heavy drinking and fond of gambling makes him a poor role model. A and fact that he gambles B and that he gambles C and he gambles which D and gambling

　　【正确答案】：D

　　【答案解析】本句考查的是平行结构的用法。(并列连词and，but，as well as，or 等连接的应是两个或几个同类的结构，语法上称为平行结构)本句中and 连接的是两个动名词，所以选项 D 是答案。

　　第3题

　　Depression that inflicts people who believe their lives lack content when the rush of the busy week stops referred to by a prominent psychiatrist as Sunday Neurosis.

　　A .has been referred to by a prominent psychiatrist B .has been referred to as by a prominent psychiatrist C. a prominent psychiatrist has referred to it D .it has been referred to by a prominent psychiatrist

　　【正确答案】：A

　　【答案解析】 本句是个复合句：Depression 是主语，后面是 that 引导的定语从句 that inflicts people who believe their lives lack content when the rush of the busy week stops，而其中斜体部分又是一个修饰 people 的定晤从句，之后还有一个由when 引导的时间状语从句，因此划线部分应是谓语动词，因此选项A正确。

　　第4题

　　Most of the older civilizations which flourished during the fifth century B.C. are died out.

　　A they have died out B has died out C have died out D they had died out

　　【正确答案】：C

　　【答案解析】本句是个复合句：Most of the older civilizations 是主语，后面是 which 引导的定语从句 which flourished during the fifth century B.C.因此划线 部分应是谓语动词，根据主语，谓语应用复数形式，因此选项 C 正确。

　　第5题

　　The student asked her professor if he would have gone on the space ship he did know earlier.

　　A if he knew B if he knows C he had known D had he known

　　【正确答案】：D

　　【答案解析】本句是对过去事实的假设，条件从句的谓语应用过去完成时(had known)，而 if 条件句中如有 were，should，had，可将 if 省去，而把 were，should，had 放在句首。因此选项 D 是答案。

　　第6题

　　The professor is quite difficult pleased.

　　A to please B to be pleased C for pleasing D pleasing

　　【正确答案】：A

　　【答案解析】此句是用动词不定式作主语：To please the professor is difficult.此 句常写作：It is difficult to please the professor.因此答案为 A。

　　第7题

　　All don't have a free ticket must pay the admission fee.

　　A Everyone who doesn't have a free ticket B No one who doesn't have a free ticket C No one who has free tickets D Anyone who has free tickets

　　【正确答案】：A

　　【答案解析】 [分析] 代词应用。 此句考查的是带有定语从句的代词作主语，要表达的是：所有没有免票的人 都要付入会费。选项 B 是双重否定，与要表达的意思相反：选项 c 的定语从句中 的 ticket 不应用复数，选项 D 也与要表达的意思相反，而选项 A 意为“任何一 个没有免票的人都要付入会费”。因此 A 为答案。

　　第8题

　　In our own galaxy, the Milky Way, there are perhaps 200 billion stars, a small part of them probably have planets on which life is feasible.

　　A a small fraction in which B a small fraction of which C a small fraction which D which a fraction of

　　【正确答案】：B

　　【答案解析】 [分析] 结构应用。 英语的定语从句(不论是限定性或非限定性)中，当关系代词作介词宾语时，介词前置，其中 whom 指人，which 指物：而介词 of 表示整体中的一部分，比用 in 准确，所以 B 为答案。

　　第9题

　　When I last saw them, the police had chased the robbers down Columbus Street.

　　A were chasing B was chasing C chased D were on a chase

　　【正确答案】：A

　　【答案解析】在由 when 引导的时间状语从句的句子中， 主句和从句的谓语动词的动作是有 先后次序的，如状语从句的时态是一般过去时，主句应用过去时，本句表示过去 正在做的动作所以应用过去进行时，又因主语 the police 即状语中的 them，所 以谓语为复数，答案应为 A。

　　第 10 题

　　The trapeze artist who ran away with the clown broke up the lion tamer's heart.

　　A broke away B broke down C broke D broken down

　　【正确答案】：C

　　【答案解析】 [分析] 动词搭配。 break up 打碎， 终止， 驱散; break away 突然离开， 放弃(习惯等); break down 毁掉，制服，中止;而本句要表达的意思是：令训狮员非常伤心;所以应用 break one's heart，选项 C 正确。