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A new study suggests that ancient periods of cold and dry climate（氣候） led to Neanderthal（尼安德特人） disappearance.Their disappearance was followed by an appearance of our species（物種）：Homo sapiens（智人 modern human beings）.
Neanderthals are a species of early humans that once lived in Europe and Asia，which died out about 40000 years ago.Homo sapiens arrived in Europe a few thousand years later.
Scientist Michael and his research team reported their findings.Their study focused.jye.ai around two cold and dry periods.One began about 44000 years ago and lasted about 600 years.The timing of those events matches the periods when Neanderthals disappear.During the two events，signs of Homo sapiens appear in central and Eastern Europe and in France.
The changes in climate would have turned forests into grassland filled with small plants.Homo saplens may have been better adapted（適應(yīng)） to that new environment than the Neanderthals were.So they may be able to move in after the Neanderthals disappeared，the researchers wrote.
Katerina，a Neanderthal expert said it is helpful to have the new climate information from southeastern Europe，which is an area that many researchers think Homo sapiens used to spread through the continent（大洲）.But she said it is unclear whether Neanderthals disappeared and Homo saplens appeared at the times the researchers reported.Rick Potts of the Smithsonian Institution called the study "a new look" at how one species took the other's place."As has been said before， our species were not cleverer than the Neanderthals，" Potts wrote."We simply out-survived（幸存） them."
（1）Why did Neanderthals disappear according to the new study？ Because of the cold and dry climate.Because of the cold and dry climate.
（2）When did Neanderthals disappear according to the writer？ About 40000 years ago.About 40000 years ago.
（3）What may the new environment in Paragraph 4 be like？ Grassland filled with small plants.Grassland filled with small plants.
（4）What do the underlined words"our species"in Paragraph 5 refer to（指代）？ Homo sapiens.Homo sapiens.
（5）What does the passage mainly talk about？ The passage mainly talks about why Neanderthals disappeared.The passage mainly talks about why Neanderthals disappeared.
【答案】Because of the cold and dry climate.；About 40000 years ago.；Grassland filled with small plants.；Homo sapiens.；The passage mainly talks about why Neanderthals disappeared.
【解答】
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發(fā)布：2024/4/20 14:35:0組卷：11引用：1難度：0.2
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