在标准气压下，一个长宽都是20cm，高10cm的方纸盒，表面共受压力______
题型：填空题
问题：
在标准气压下，一个长宽都是20cm，高10cm的方纸盒，表面共受压力______N，纸盒在此压力下没有压瘪的原因是______．
题型：填空题
阅读理解。
English is fast becoming the language of science around the world, but what is its future among
everyday speakers? One expert points out that the percentage(比率) of native English speakers is
declining (降低) globally while the languages of other rapidly growing regions are being spoken by
increasing numbers of people. But English will continue to remain widespread and important.
However, British language scholar David Graddol says English will probably drop in dominance (主导) by the middle of this century to rank, after Chinese, about equally with Arabic, Hindi, and Urdu. "The
number of people speaking English as a first language continues to rise, but it isn't rising nearly as fast as the numbers of many other languages around the world, simply because the main population group has been
largely in the less developed countries where languages other than English have been spoken,' he says.
In a recent article in the journal Science, Mr. Graddol noted that three languages that are not near the
top of the list of the most widely spoken now might be there soon. These are Bengali, Tamil, and Malay,
spoken in south and Southeast Asia.
David Crystal, the author of the Cambridge Encyclopedia of the English Language, says about 1.5
billion of the world's six billion people speak it as a second tongue compared to the 400 million native
speakers. But another expert on the English language says Mr. Graddol underestimates (低估) the future
of its dominance. "Nobody quite knows what's going to happen because no language has been in this
posit
ion before. But all the evidence (证据) suggests that the English language snowball is rolling down a
hill and is getting faster,' he said.
1. In David Graddol's opinion, English will _____.
A. remain widespread and important
B. be more important than any other language
C. lose its dominant position
D. die away in the near future
2. The underlined sentence in the last paragraph implies that _____.
A. snowballs will roll down faster than language balls
B. the English language snowball is rolling down faster than any time in the past
C. English language wi
ll soon drop in dominance
D. more and more language users will choose English
3. How many experts does the passage mention who express their ideas about the future of English?
A. 2.
B. 3.
C. 4.
D. 5.
4. According to David Graddol, which of the following will possibly be one of the languages that will be most widely spoken?
A. Malay.
B. Arabic.
C. Urdu.
D. German.
5. What should be the best title for the passage?
A. English Remaining the Dominant Position
B. The Future of English? Who Knows?
C. Opinions from Different Experts
D. The English Language Snowball Rolling Down