According to a new study published in the journal Nature，earthquakes in the Himalaya can increase the influence of floods （洪水） downstream，probably affecting millions of people．The findings could help researchers improve flood risk maps for the Ganga Plain，an area covering parts of India，Nepal and Pakistan．They could also help better understand the long-term influence of earthquakes in the area．
As we all know，earthquakes may cause huge landslides （滑坡）．For the first time，scientists at the University of Edinburgh have studied the path of rocks washed down from the Himalayan Mountains onto the Ganga Plain．They found that large landslides in the southern part of the Himalaya are more likely to increase flood risk than those in the high mountains further north．Rocks in the south are extremely hard and travel only a short distance-less than 20 km-to reach the Ganga Plain．This means a lot of hard rocks reach the Ganga Plain and can build up in rivers，changing the natural path of the water，the team says．Rocks from more northerly areas of the Himalaya are softer，and the team found they often travel at least 100 km to reach the Ganga Plain．These rocks are gradually broken down into sand and finally spread widely as they travel downstream．
The research，published in the journal Nature，was supported by the Natural Environment Research Council．Elizabeth Dingle，PhD student in the University of Edinburgh's School of GeoSciences，led the study．"Our findings help to explain how events in the Himalaya can have great effects on rivers downstream and on the people who live there．Knowing where landslides take place in the mountains could help us foresee how rivers on the Ganga Plain will be affected，"she said．
（1）What does the new study find？ AA
A．How earthquakes in the Himalaya can increase the flood risk downstream．
B．Whether humans can finish flood risk maps for the Ganga Plain．
C．Whether earthquakes in the Himalaya can cause floods downstream．
D．How earthquakes happen in the Himalaya．
（2）What can we learn from Paragraph 2？ DD
A．Landslides will produce a lot of dangerous hard rocks．
B．Rocks from the Himalaya can be easily broken down into sand．
C．Rocks from the northern Himalaya raise the flood risk downstream．
D．Hard rocks from the Himalaya raise the flood risk downstream．
（3）What does the underlined word"foresee"in the last paragraph most probably mean？ AA
A．Forecast．
B．Check．
C．Control．
D．Change．
（4）What does Elizabeth Dingle think of the new study？ BB
A．Meaningless．
B．Helpful．
C．Interesting．
D．Surprising．
【答案】A；D；A；B
【解答】
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發(fā)布：2024/4/20 14:35:0組卷：13引用：1難度：0.5
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（2）What does the underlined phrase "bear out" in Paragraph 3 mean？
A．make.
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D．Farmers do not allow Lucy to conduct tests in their fields.發(fā)布：2024/12/16 9:0:1組卷：16引用：4難度：0.5 -
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