第3部分：概括大意与完成句子。阅读下面这篇短文，短文后有2项测试 任务：(1)第1-4题要求从所给的6个选项中为第2-5段每段选择1个正确的小标题;(2)第5-8题要求从所给的6个选项中选择4个正确选项，分别完成每个句子。
English and English Community
1 There is no doubt that English is a useful language.The people who speak English today make up the largest speech community in the world with the exception of speakers of Chinese.
2 A speech community is similar to other kinds of communities.The people who make up the community share a common language.Often they live side by side, as they do in a neighborhood (街坊)，a village，or a city.More often they form a whole country.National boundaries，however，are not always the same as the boundaries of a speech community.A speech community is any group of people who speak the same language no matter where they happen to live.
3 We may say that anyone who speaks English belongs to the English speech community.For convenience(方便)，we may divide the speakers into two groups: one in which the speakers use English as their native language, the other in which the speakers 1earn English as a second language for the purpose of education，commerce，and so on.
4 Learning a second language extends one's vision and expands the mind.The history and literature of a second language record the real and fictional(虚构的)lives of people and their culture;a knowledge of them adds to our ability to understand and to feel as they feel.Learning English as a second language provides another means of communication through which the window of the entire English speech community becomes a part of our heritage.
23 Paragraph 1___________ .
24 Paragraph 2___________ .
25 Paragraph 3___________ .
26 Paragraph 4___________ .
A Threat Posed by English
B Definition of a Speech Community
C Benefits of Learning a Second Language
D Advantages of Learning Chinese
E Two Groups of the English Speech Community
F A Widely Used Language
27 Overall there are more speakers of Chinese than of ___________
28 The boundaries of a speech community may be different from ___________ .
29 People who live in different places may belong to ___________ .
30 Many people learn English as ___________ .
A a second language
B the same language
C the same speech community
D any other language
E national boundaries