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发布时间:2024-05-16 04:06:30

[单项选择]
下面有3篇短文,每篇短文后有5道题,每题后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题,从4个选项中选择1个最佳答案。
{{B}}第一篇{{/B}}
{{B}} Egypt Felled by Famine{{/B}}
Even ancient Egypt’s mighty pyramid builders were powerless in the face of the famine that helped bring down their civilisation around 2180 BC. Now evidence gleaned from mud deposited by the River Nile suggests that a shift in climate thousands of kilometres to the south was ultimately to blame -- and the same or worse could happen today.
The ancient Egyptians depended on the Nile’s annual floods to irrigate their crops. But any change in climate that pushed the African monsoons southwards out of Ethiopia would have diminished these floods.
Dwindling rains in the Ethiopian highlands would have meant fewer plants to stablise the soil. When rain did fall it would have washed
A. Change of climate.
B. Famine.
C. Flood.
D. Population growth.

更多"下面有3篇短文,每篇短文后有5道题,每题后面有4个选项。请仔细阅读短文"的相关试题:

[单项选择]
下面有3篇短文,每篇短文后有5道题,每题后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题。
{{B}}第一篇{{/B}}
{{B}} Shakespeare{{/B}}
When talking about the world’s greatest poet and greatest dramatist, only one name can possible suggest itself; that of William Shakespeare. Nearly every Englishman has some knowledge, however slight, of the work of this greatest writer. We use words, phrases and quotations form Shakespeare’s writings that have become part of the common property of English-speaking people. Most of the time we are probably unaware of the source of the words we use. For example, and old lady, after seeing a performance of Hamlet complained, "It was full of well-known proverbs and quotations!"
Shakespeare made full use of the great resources of the English language. Most of us use about five thousand words in
A. Most of the people have taken courses in Shakespeare’s works.
B. The English-speaking people like to mention the names of Shakespeare’s works.
C. Most of the people know clearly how to use the words and phrases from Shakespeare’s works.
D. Many of the words and phrases used by the English-speaking people are taken from Shakespeare’s works.
[单项选择]
下面有3篇短文,每篇短文后有5道题,每题后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题,从4个选项中选择1个最佳答案。
{{B}}第一篇{{/B}}
{{B}}A New Finding{{/B}}
British cancer researchers have found that childhood leukaemia is caused by an infection and clusters of cases around industrial sites are the result of population mixing that increases exposure. The research published in the British Journal of Cancer backs up a 1988 theory that some as yet unidentified infection caused leukaemia—not the environmental factors widely blamed for the disease.
“Childhood leukaemia appears to be an unusual result of a common infection,” said Sir Richard Doll, an internationally—known cancer expert who first linked tobacco with lung cancer in 1950. “A virus is the most likely explanation. You would get an increased risk of it if you suddenly put a lot of pe
A. Most people believe childhood leukaemia is due to environmental factors.
B. Population mixing best explains the cause of childhood leukaemia.
C. Radiation has nothing to do with childhood leukaemia.
D. Children born in a large town are at higher risk of leukaemia.

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