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?

________________________________

2. What will happen if you eat a teaspoon of pure capsaicin?

________________________________

3. How fast can a runner run at most?

________________________________

4. What sound can be heard by your ears?

________________________________

5. Where can you read such an article?

________________________________

 

请阅读下面各小题，从方框中选择适当的短语填空，并将其序号填写到答题卷的相应位置。每个词语限用一次。

A. With the help of B. complain about C. a good experience D. provided…with E. pick…up F. later on G. anybody else H. all the time I. in white J. woke up

【小题1】Lucy volunteers at a school. It’s ________for her because she wants to be a teacher.
【小题2】—Let’s keep the secret between us .
—I won’t tell it to _________ .
【小题3】________ the policeman, the Blacks finally found their lost cat on the street .
【小题4】—Who is that man ________ ?
—He is the world champion we talked about just now .
【小题5】Some old people have nothing better to do than to ________their unhappiness .
【小题6】—I __________several times during the night .
—What’s wrong  with you ?
【小题7】—My company _______me _________a car .
—Oh , you’re a lucky dog .
【小题8】—I dropped my book on the floor . Could you please help me ________ it ________?
—Wait a minute .
【小题9】—How cold the weather is today !
—Yes , and it’ll be even colder _________ .
（【小题10】Children can’t depend on their parents __________ .

请阅读下面各小题，从方框中选择适当的短语填空，并将其序号填写到答题卷的相应位置。每个词语限用一次。

A. With the help of B. complain about C. a good experience D. provided…with E. pick…up F. later on G. anybody else H. all the time I. in white J. woke up

【小题1】Lucy volunteers at a school. It’s ________for her because she wants to be a teacher.
【小题2】—Let’s keep the secret between us .
—I won’t tell it to _________ .
【小题3】________ the policeman, the Blacks finally found their lost cat on the street .
【小题4】—Who is that man ________ ?
—He is the world champion we talked about just now .
【小题5】Some old people have nothing better to do than to ________their unhappiness .
【小题6】—I __________several times during the night .
—What’s wrong  with you ?
【小题7】—My company _______me _________a car .
—Oh , you’re a lucky dog .
【小题8】—I dropped my book on the floor . Could you please help me ________ it ________?
—Wait a minute .
【小题9】—How cold the weather is today !
—Yes , and it’ll be even colder _________ .
（【小题10】Children can’t depend on their parents __________ .