问题 单项选择题

阅读下面的文字,完成下列各题。

2000年,南美洲秘鲁海域的海水比往年同期变暖了。2001年,北美洲的加拿大等国的食品价格比往年上涨了许多。这两件事之间有什么联系吗如有联系,这种联系又说明了什么问题呢

在秘鲁海域,每年五月初到九月底,通常情况下气候是相当的潮湿和寒冷。这种潮湿气候是由一股寒流造成的。这种寒流我们称之为洪堡洋流,它每年都从太平洋来到南美洲秘鲁海域。

尽管人们不喜欢洪堡洋流带来的这种冷气候,但是,一种名叫“鳀鱼”的鱼特别喜欢这种冷潮。每年五月初到九月底,秘鲁海域就存游有亿万尾鳀鱼。

然而,在极少的年岁里,赤道的暖流也许会改变流行方向,南下到秘鲁海域,使海水变暖。于是那些喜欢冷潮的鳀鱼就被迫离开南美的秘鲁海域而另觅新的乐园。

鳀鱼是制作鱼粉的主要原料,这种鱼粉是干鳀鱼肉研磨后另混合其他饲料而制成的,成本低、效用高,是喂养鸡、牛和其他禽畜的极好饲料。

秘鲁是世界上鱼粉主要出产国,1999年,秘鲁向海外出售了两百万吨鱼粉饲料。加拿大、欧洲、拉丁美洲等国家常年能够在秘鲁买到大量的鱼粉饲料。

2000年4月,秘鲁海域的气候突然发生了变化。一股赤道暖流似不速之客来到这里,使先期到达这里的洪堡洋流温度升高,海水变暖。于是一群群鳀鱼游离到其他远海域。

在这种情况下,秘鲁渔民的捕获量极少。国家也就不可能像往年那样大量的向海外出口鱼粉。于是,市场上那些原来由秘鲁供给的牛、鸡吃的饲料极为缺乏。这样,北美加拿大等国食品价格上涨也就是必然的结果了。

根据文中表述,对“北美洲的加拿大等国的食品价格比往年上涨了许多”和“南美洲秘鲁海域的海水比往年同期变暖了”之间的联系理解正确的一项是()。

A.海水变暖→改变了秘鲁海域鳗鱼的生存环境→鳀鱼减少→鳗鱼料鱼粉生产量减少→鸡、牛等生产成本变高→北美加拿大等国的食品价格上涨

B.海水变暖→改变了鳀鱼的生存环境→致死鳀鱼→鳀鱼料鱼粉生产量小→鸡、牛等生产成本变高→北美加拿大等国的食品价格上涨

C.海水变暖→改变了鳀鱼的生存环境→鳀鱼减少→鳀鱼料鱼粉生产量小→鸡、牛等禽畜数量减少→北美加拿大等国的食品价格上涨

D.海水变暖→改变了鳀鱼的生存环境→致死鳀鱼→鳀鱼料鱼粉生产量小→鸡、牛等禽畜数量减少→北美加拿大等国的食品价格上涨

答案

参考答案:A

解析:

B.应为改变了秘鲁海域鳀鱼的生存环境、鳗鱼减少,错误;C.应为改变了秘鲁海域鳀鱼的生存环境,鸡、牛等生产成本变高,错误;D.应为改变了秘鲁海域鳀鱼的生存环境,鳀鱼减少,鸡、牛等生产成本变高,错误;选A。

单项选择题
单项选择题

"A good newspaper is a nation talking to itself," mused Arthur Miller in 1961. A decade later, two reporters from the Washington Post wrote a series of articles that brought down President Nixon and the status of print journalism soared. At their best, newspapers hold governments and companies to account. They usually set the news agenda for the rest of the media. But in the rich world newspapers are now an endangered species.
Of all the old media, newspapers have the most to lose from the Internet. Circulation has been falling in the U. S., Western Europe and Latin America for decades. But in the past few years the web has hastened the decline. In his book The Vanishing Newspaper, Philip Meyer calculates that the first quarter of 2043 will be the moment when newsprint dies in the U. S. as the last exhausted reader tosses aside the last crumpled edition.
Newspapers have not yet started to shut down in large numbers, but it is only a matter of time. Over the next few decades half the rich world’s general papers may fold. Jobs are already disappearing. According to the Newspaper Association of America, the number of people employed in the industry fell by 18% between 1990 and 2004.
Having ignored reality for years, newspapers are at last doing something. In order to cut costs, they are already spending less on journalism. Many are also trying to attract younger readers by shifting the mix of their stories towards entertainment, lifestyle and subjects that may seem more relevant to people’s daily lives than international affairs and politics are. They are trying to create new businesses on-and offline. And they are investing in free dally papers. So far, this fit of activity looks unlikely to save many of them. Even if it doest, it bodes ill for the public role of the Fourth Estate.
Nobody should relish the demise of once-great titles. But the decline of newspapers will not be as harmful to society as some fear. Democracy, remember, has already survived the huge television-led decline in circulation since the 1950s. It has survived as readers have shunned papers and papers have shunned what was in stuffier times thought of as serious news. And it will surely survive the decline to come.
The usefulness of the press goes much wider than investigating abuses or even spreading general news; it lies in holding governments to account -- trying them in the court of public opinion. The Internet has expanded this court. Anyone looking for information has never been better equipped. People no longer have to trust a handful of national papers or, worse, their local city paper.
In future, some high-quality journalism will be backed by non-profit organizations. Already, a few respected news organizations sustain themselves that way. An elite group of serious newspapers available everywhere online, independent journalism backed by charities, thousands of fired-up bloggers and well-informed citizen journalists: there is every sign that Arthur Miller’s national conversation will be louder than ever.

"The Fourth Estate" in Paragraph 4 refers to ______.

A.newspapers

B.the political influence

C.the people working for the media

D.the people writing news reports