单项选择题

Earth scientists have come to understand that climate______.

A．is going through a fundamental change
B．has been getting warmer for 10 000 years
C．will eventually change from hot to cold
D．has gone through periodical changes

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热门试题

单项选择题Scientists believe that human evolution______.

A．has seldom been accompanied by climatic changes
B．has exerted little influence on climatic changes
C．has largely been effected by climatic changes
D．has had a major impact on climatic changes

单项选择题Evidence of past climatic changes indicates that______.

A．human activities have accelerated changes of Earth's environment
B．Earth's environment will remain mild despite human interference
C．Earth's climate is bound to change significantly in the future
D．Earth's climate is unlikely to undergo substantial changes in the future

单项选择题The message the author wishes to convey in the passage is that______.

A．human civilization remains glorious though it is affected by climatic changes
B．mankind is virtually helpless in the face of the dramatic changes of climate
C．man has to limit his activities to slow down the global warming process
D．human civilization mill continue to develop in spite of the changes of nature

单项选择题Fanning emerged as a survival strategy because man had been obliged______.

A．to give up his former way of life
B．to leave the coastal areas
C．to follow the ever-shifting vegetation
D．to abandon his original settlement

单项选择题By saying that It's an image that will boggle the mind for years to come, (the last sentence in paragraph 2) the author means that______.

A．the WTO is likely to have a bad image in people's mind in the future
B．the startling scene will hang in people's mind in the years to come
C．the WT0 will have a difficult time changing people's way of thinking in the furture
D．people will lose whatever confidence they have in the future of the WTO