题型:阅读理解 题类:常考题 难易度:普通
湖南省岳阳市第一中学2018届高三上学期英语第二次月考试卷
Are you content with the shape of your nose? If not, the climate may be to blame, not your parents.
This is according to a recent study carried out by scientists from Pennsylvania State University, US. They found that climate played a key role in shaping our noses. The findings were based on an examination of the size and shape of noses of 476 people from four regions — West Africa, East Asia, South Asia and Northern Europe, using 3D facial imaging technology.
“People have thought for a long time the difference in nose shape among humans across the world may have arisen as a result of natural selection because of climate,” Arslan Zaidi, one of the lead authors of the study, told the Guardian. But while previous studies were based on measurements from human skulls(头骨), Zaidi and his team looked at nose shape itself.
The result showed that wider noses are more common in warm and humid climates, while narrower noses are more common in cold and dry climates. That, Zaidi said, could be because narrower nasal passages (鼻道) help to increase the wet content of air and warm it, which is easier on our lungs. This, in turn, led to a gradual decrease in nose width in populations living far away from the equator (赤道).
More study is still needed to test the link between climate and nose shape, but Zaidi believes the current findings are valuable in understanding potential health issue. “As we become more of a global community, we are going to come across climates that we are not adapted to,” he told the Guardian. This means moving to a very different climate might increase the risk of breathing problems.
However, he added, “This may not be necessarily true for various reasons such as of modem medicine and the fact that our current climate is very different from what it used to be.”
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Course Type |
Days |
Number of Lesson |
Course Timetable |
Standard Course |
Mon-Fri |
20 lessons |
9:30-12:30 |
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Mon-Fri |
20 lessons |
9:30-12:30 |
20 lessons |
13:30-14:30 |
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