2024全国英语等级考试（四级）真题模拟03-28

1、The author’s primary purpose in the text is to ______.（单选题）

A. clarify the kinds of understanding an adolescent must have in order to develop a political ideology

B. dispute the theory that a political ideology can be acquired during adolescence

C. explain why adolescents are generally uninterested in political arguments

D. suggest various means of encouraging adolescents to develop personal political ideologies

试题答案：A

2、We can infer from the last paragraph that ______.（单选题）

A. Americans enjoy the medical care of their choice.

B. most Canadians deem their health care system to be flawless.

C. Canadians do not benefit from all new medical achievements.

D. most Americans are proud of their health care system.

试题答案：C

3、Incomplete proteins ______.（单选题）

A. have all the essential amino acids

B. are manufactured by the body

C. can mix with other proteins to form complete proteins

D. can be gained from meat, fish, eggs, and milk

试题答案：C

4、PPL scientists will try to solve their problem by ______.（单选题）

A. removing the sugar molecule on the surface of pig cells.

B. distinguishing human tissues form those of pigs.

C. using the sugar-free nucleus in cloning a pig.

D. taking out the sugar genes from the cell of a pig.

试题答案：C

5、The superiority of the Canadian health care system is seen in ______.（单选题）

A. its low medical cost and better public health.

B. the immediate compensations form insurance companies.

C. its prompt application of advanced technological innovations.

D. the low charges made by medical personnel.

试题答案：A