问题 多项选择题

免疫监视功能包括()

A.识别、杀伤和清除体内突变细胞,防止肿瘤的发生 

B.防止病毒的持续感染 

C.清除体内变性、损伤及衰老的细胞,防止自身免疫病的发生 

D.从体内清除微生物及其产物,保护机体的功能 

E.阻止病原微生物侵入机体,抑制其在体内繁殖扩散

答案

参考答案:A, B

阅读理解

Reading is very important to help you learn English. To learn as much as you can from reading, you need to read different kinds of English. This book provides not only different kinds of English but also a good way to check your reading ability.

There are four parts in the book:

Part 1 is Messages: In this part somebody wants to send information in writing to somebody else. There is a test on timetable and a test on text messages.

Part 2 is People: In this part all the tests are about people. For example, there is an informal letter between friends. There is formal(正式的) English in biography(传记). There is a job application as a model to help with your writing, as well as testing your reading.

Part 3 is Places: In this part, too, many different kinds of English are shown, some informal and some formal. There is the informal English of a holiday postcard. There is also the formal English in a letter of complaint.

Part 4 is Things: You will find some descriptive writing in this part. There are descriptions of clothes and of a computer.

You can do these tests in any order you like, or you can do all the tests with a formal or informal text. I enjoyed writing this book and I hope you enjoy using it.

59. We can find the introduction to a product in ___________.

A. part 1         B. Part 2           C. Part 3            D. Part 4

60. Which of the following is most probably written in informal English?

A. A letter of complaint.                                B. A computer handbook.

C. A letter of a friend.                                          D. A story of a president.

61. The passage is most probably written for _________.

A. test designers    B. students     C. test-takers    D. teachers

62. What is the best title of the book?

A. Test Your Reading                                    B. Help with Your Writing

C. Learn Different Kinds of English               D. Practice English in Different Ways

单项选择题