2015年托福考试模拟题汇编

1. Chromosomes are regarded today as the major carriers of genetic material， _________ of DNA and various types of protein.

A. consisting

B. as to consist

C. consist

D. which consisting

答案：A

分析：分词作状语。如果用consist的话，应该用个conj.后面加个完整的句子。

参考译文：染色体现今被认为是主要的遗传物质携带者，这些遗传物质由DNA和各种各样的`蛋白质组成。

2. The leopard seal is the only pinniped _________ preys on penguins and other seals.

A. that normally

B. of which it normally

C. normally

D. that it normally

答案：A

分析：句中出现is和preys两个谓语动词，一定是个复合句;用that引导定语从句，pinniped为先行词，that后为不完整句。

参考译文：美洲虎海豹是仅有的捕食企鹅和其他海豹的鳍足类动物。

3 _________ “nova” means new， novas are actually stars that have existed for a long time and suddenly flare into brilliance.

A. That

B. Why

C. Although

D. It is

答案：C

分析：空格后有2个完整句，空格处需要一个conj.

参考译文：尽管nova意味着新的，但其实新星们是存在了很久而突然闪耀出光辉的恒星。

4. Because Mars is farther from the Sun than _________， Mars takes longer to complete a revolution.

A. Earth is

B. is from Earth

C. what is Earth

D. is it Earth

答案：A

分析：比较结构的对称性：Mars is farther …… than Earth is，is后省略了from the Sun

参考译文：因为火星比地球离太阳要远，火星绕太阳转一圈的时间要比地球长。

5. A social system is _________ of social relations that draws the behavior of its members toward the core values of the group.

A. a complex network

B. how a complex network

C. a complex network and

D. a network that is complex

答案：A

分析：缺宾语。B中的从句只有主语，句子不完整，错;C中and作为连词，后面缺谓语，错;D错，因为of前应该为名词。

参考译文：社会系统就是一个社会关系的复杂网络，这个网络里把成员的行为方式向核心价值观靠拢。