题目内容
阅读短文
What are the limits(极限) of human body? The BBC’s Focus magazine has some answers.
How cold can you stand?
Normal body temperature is around 37℃. At 35℃ you’re unable to write your name. Even walking is very difficult. At 33℃ you may find it difficult to think, understand and form(形成) opinions properly. By the time you have cooled to 20℃, your heart would have stopped beating.
Limit: 0℃. Ice would form in your tissues(纤维组织), killing all the cells.
How spicy can you eat?
There is capsaicin(辣椒素) in many foods. The more capsaicin, the hotter the dishes are. If you’re healthy enough, you can survive(存活) eating a teaspoon of pure capsaicin. But you would find it impossible to eat anything else for a few hours.
Limit: 5g capsaicin.
How fast can you run?
The fastest man in the world is Asafa Powell. The runner finished the 100m in 9. 74 seconds in 2007. This gives an average(平均的) speed of 36. 96km/h.
Top runners are at their fastest around 80 metres, so a runner’s greatest speed may reach 43.06km/h.
Limit: 43.06km/h.
How loud is too loud?
The loudest sound you can hear is 168 dB(分贝). Sound louder than that may do harm to your ears. The loudest sound ever recorded was the eruption of Krakatoa(卡拉卡托火山爆发) in 1883. It was 180 dB, 160km away.
Limit: 168 dB
根据短文内容,回答问题
1.At what temperature will your cells die?
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2. What will happen if you eat a teaspoon of pure capsaicin?
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3. How fast can a runner run at most?
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4. What sound can be heard by your ears?
________________________________
5. Where can you read such an article?
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1.At 0℃.
2.I won’t be able to eat anything else for a few hours.
3. 43.06km/h.
4. Sound which is lower than 168dB.
5.In a science magazine.
【解析】
1.根据短文中0℃. Ice would form in your tissues(纤维组织), killing all the cells.可知
2.根据第二段If you’re healthy enough, you can survive(存活) eating a teaspoon of pure capsaicin. But you would find it impossible to eat anything else for a few hours.可知
3.根据Top runners are at their fastest around 80 metres, so a runner’s greatest speed may reach 43.06km/h.可知
4.根据The loudest sound you can hear is 168 dB(分贝)可知
5.考查对全文理解,不难得出结论这是摘自科技杂志的文章
先阅读短文,然后从文中每小题的四个选项中选出一个可以填入短文中相应空白处的最佳答案。
I did very badly at school. My headmaster thought I was useless and when I was 14, he said, “You’re never going to be (1) but a failure(失败者).
After five years of poor jobs, I fell (2) with a very nice girl. But her mother said to me, “You’ve (3) in everything you’ve ever done. You can’t give any happiness to my daughter!” It was the frustrating thing that could have changed me later. I decided to do something (4) about my life, because I wanted to show her that what people said about me was (5) .
So I tried hard with my writing and went to college. My first book came out while I was at college. After college I (6) during the day in high schools and went to evening classes at college. Later, I gave up that job to write full time. At the same time, I was offered a part-time job as a (7) at Leeds University. I began to feel (8) of myself –here was once a poor boy who’d left school early, now teaching at the university. My writing career(生涯) (9) when I discovered my own style.
Now I’m rich and (10) , have been on TV, and met lots of film stars. But what does that mean? I just wish all the people who have put me down had said: “I believe in you. You’ll succeed.”
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