问题 阅读理解与欣赏

阅读下面的语段,完成练习。

  大熊猫、白鳍豚、扬子鳄、中华鲟、白鲟等动物,水杉、银杉、银杏、香果树、树蕨等植物,都是仅存于我国的世界著名孑遗生物,它们是在长江的庇护下才躲过了九死一生的地质灾变。长江流域正是以其优越的自然地理环境,成为世界罕见的孑遗生物避难所。现在,长江正日益失去这种特质。白鳍豚的命运,就是生态环境恶化导致长江流域生物多样性危机的缩影。

1.根据意思写出文中的词语。

(1)形容经历了多次生死考验而幸存下来。(  )

(2)能躲避灾难或摆脱迫害的场所。(  )

2.为什么长江能成为世界罕见的孑遗生物避难所?

_____________________________________________________________

3.这个自然段主要写[ ]

A.长江是孑遗生物避难所。

B.长江的生态环境恶化导致生物灭绝。

C.长江曾经是世界罕见的孑遗生物避难所,但现在长江的生态环境正在恶化,将日益失去这种特质。

答案

1.(1)九死一生(2)避难所

2.长江有优越的自然地理环境。(意思对即可)

3.C

单项选择题
单项选择题

In a democratic society citizens are encouraged to form their own opinions on candidates for public office, taxes, constitutional amendments, environmental concerns, foreign policy, and other issues. The opinions held by any population are shaped and manipulated by several factors: individual circumstances, the mass media, special-interest groups, and opinion leaders.

Wealthy people tend to think differently on social issues from poor people. Factory workers probably do not share the same views as white-collar, nonunion workers. Women employed outside their homes sometimes have perspectives different from those of full-time homemakers. In these and other ways individual status shapes one’s view of current events.

The mass media, especially television, are powerful influences on the way people think and act. Government officials note how mail from the public tends to "follow the headlines. " Whatever is featured in newspapers and magazines and on television attracts enough attention that people begin to inform themselves and to express opinions.

The mass media have also created larger audiences for government and a wider range of public issues than existed before. Prior to television and the national editions of newspapers, issues and candidates tended to remain localized. In Great Britain and West Germany, for example, elections to the national legislatures were usually viewed by voters as local contests. Today’s elections are seen as struggles between party leaders and programs. In the United States radio and television have been beneficial to the presidency. Since the days of Franklin D. Roosevelt and his "fireside chats," presidents have appealed directly to a national audience over the heads of Congress to advocate their programs.

Special-interest groups spend vast sums annually trying to influence public opinion. Public utilities, for instance, tried to sway public opinion in favor of nuclear power plants. Opposed to them were citizens’ organizations that lobbied to halt the use of nuclear power. During the 1960s the American Medical Association conducted an unsuccessful advertising campaign designed to prevent the passage of Medicare.

Opinion leaders are usually such prominent public figures as politicians, show-business personalities, and celebrity athletes. The opinions of these individuals, whether informed and intelligent or not, carry weight with some segments of the population. Some individuals, such as Nobel Prize winners, are suddenly thrust into public view by the media. By quickly reaching a large audience, their views gain a hearing and are perhaps influential in shaping views on complex issues.

Which of the following is true according to the passage()

A. TV programs have a p influence on governmental policy

B. Chats on televisions are chief means for running for presidency

C. More and more people show interest in politics because of TV

D. Before the use of TV, people showed little interest in politics