2019年托福考试语法经典练习题（二）

>>托福考试练习题：2019年托福考试语法经典练习题（二）

>>托福110+冲刺课程

1. Frances Perkins， _________ of the United States cabinet， served in the cabinet as secretary of labor from 1933 to 1945.

A. the first female member

B. was the first female member

C. the first female member who

D. of whom the first female member

答案：A

分析：主语同位语结构。B中多了一个谓语was，因为后面已经有一个谓语动词served， 一个句子中出现2个谓语且没有连接词就一定错; C中who多余，用法也不正确;D中of whom多余，不是定语从句，考的是同位语结构。

2. When _________ to dough and heated， carbon dioxide is released， causing the dough to rise.

A. is added baking powder

B. added baking powder is

C. is baking powder added

D. baking powder is added

答案：D

分析：When为状语从句引导词;语序应该为正常语序，A，C错;B语序混乱，明显应该用被动形式，而且有固定结构add to.

3. _________ the percentage of individuals with similar traits in succeeding generations， geneticists use the theory of probability.

A. The calculation of

B. To calculate

C. Is calculating

D. Calculated

答案：B

分析：to calculate，这里用不定式表示“目的”，前半句的逻辑主语是geneticists，只有B符合要求;A中只有主语，句子不完整。

补充： 如同A的形式， 逗号前面就是一个名词短语， 然而正确的句子里， 名词短语要么作为主语的同位语， 要么本身是主语， 如11题。 否则就是脱离句子成分， 成为错误。

4. Big-band uaaz relies on fixed arrangements， where_______than one instrument playing some of the parts， rather than on improvisation.

A. is more

B. whenever more

C. there is more

D. more

答案：C

分析：where引导状语从句，后面缺主谓。

5. Because of _________ diversity， seven separate groupings or divisions of algae have been established by botanists.

A. them

B. so that

C. those

D. their

答案：D

分析：those是泛指，这里应该用their来特指seven separate groupings or divisions of algae.

6. 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。

7. 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。

8. _________ “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.

9. 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

10. 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。

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