题目列表(包括答案和解析)
LONDON----Here’s a new warning from health experts: Sitting is deadly.
Scientists are increasingly warning that sitting for prolonged periods — even if you also exercise regularly — could be bad for your health. And it doesn’t matter where the sitting takes place — at the office, at school, in the car or before a computer or TV — just the overall number of hours it occurs. Several studies suggest people who spend most of their days sitting are more likely to be fat, have a heart attack or even die.
In an editorial published this week in the British Journal of Sports Medicine, Elin EkblomBak of the Swedish School of Sport and Health Sciences suggested that authorities rethink how they define physical activity to highlight the dangers of sitting.
While health officials have issued guidelines recommending minimum amounts of physical activity, they haven’t suggested people try to limit how much time they spend in a seated position.
"After four hours of sitting, the body starts to send harmful signals," Ekblom-Bak said. She explained that genes regulating(调节) the amount of glucose（葡萄糖） and fat in the body start to shut down.
Even for people who exercise, spending long periods of time sitting at a desk is still harmful. Tim Armstrong, a physical activity expert at the World Health Organization, said people who exercise every day — but still spend a lot of time sitting — might get more benefit if that exercise were spread across the day, rather than in a single bout.（一回）
Still, in a study published last year that tracked more than 17,000 Canadians for about a dozen years, researchers found people who sat more had a higher death risk, independently of whether or not they exercised.
"We don’t have enough evidence yet to say how much sitting is bad," said Peter Katzmarzyk of the Pennington Biomedical Research Center in Baton Rouge, who led the Canadian study. "But it seems the more you can get up and interrupt this sedentary behavior, the better."
Figures from a U.S. survey in 2003-2004 found Americans spend more than half their time sitting, from working at their desks to sitting in cars.
Experts said more research is needed to figure out just how much sitting is dangerous, and what might be possible tooffset those effects.
"People should keep exercising because that has a lot of benefits," Ekblom-Bak said. "But when they’re in the office, they should try to interrupt sitting as often as possible," she said.
【小题1】What is the best title for the text?
| A．Not Sitting Too Much While Working | B．How To Avoid Sitting Too Much |
| C．Sitting Too Much Could Be Deadly | D．More And More People Sit Too Much |
| A．the more time you spend in exercising in a single bout, the healthier you will be. |
| B．those who often sit too much are sure to grow fat or suffer from a heart attack. |
| C．regular exercise is effective to get rid of the side effect of sitting too much. |
| D．you had better not sit for more than four hours in a single bout. |
| A．It results in a higher death risk. |
| B．It increases glucose and fat in the body. |
| C．It makes a person unable to exercise long enough in a day. |
| D．It causes the gene to fail to balance the glucose and fat in the body. |
| A．sending your friends e-mails |
| B．having a walk around your office |
| C．chatting online or playing computer games |
| D．listening to music with your head on the desk. |
At the age of 13，I visited a doctor with my parents. As I sat in the examining chair，the doctor looked into my 31 .“She did inherit (继承) it，”he said with coldness.“You need to be prepared. There is no 32 for this disease.”
My father 33 a gene which，in most cases，results in blindness. I’d inherited the gene. He gradually 34 his eyesight and so did I. At last we were both 35 blind—he was fifty-seven years old， 36 I was only twenty-eight.
My world 37 as the darkness fell， 38 the dreams my husband and I had for us and for our three little boys. But 39 I tried to find some hope and 40 ，my eyes were opened to a new realization.
My father had 41 me not just failing eyesight，but an example of 42 in the face of hardships as well. We were all living in Bolivia in 1964 when he decided to 43 the family to America. He worked tirelessly to 44 the right of living in the US.
Alone in the States，he 45 his helplessness and lack of fluency in English. He managed to rent a small apartment，and nine months later，sent airline tickets for my mom，my brother and me.
Decades later， 46 an American citizen，I look back at what he'd shown me. He set an example proving that determination is important to success. His 47 taught me valuable lessons for my own path in the darkness.
I did the same as I stepped into a 48 world. I fulfilled (完成) my own 49 as a wife，mom，Sunday school teacher and Spanish interpreter. What I inherited from my father helped me to 50 my life in a whole new light.
1.A.mouth B.eyes C.ears D.throat
2.A.solution B.reason C.excuse D.cure
3..A.carried B.spread C.infected D.raised
4.A.damaged B.lost C.recovered D.gained
5.A.rapidly B.nearly C.completely D.terribly
6.A.though B.but C.so D.since
7.A.broke down B.broke off C.broke away D.broke out
8.A.realizing B.sharing C.disturbing D.destroying
9.A.when B.before C.unless D.until
10.A.honour B.beauty C.strength D.failure
11.A.handed B.rewarded C.given D.taught
12.A.contribution B.determination C.challenge D.honesty
13.A.move B.settle C.arrange D.send
14.A.enjoy B.declare C.apply D.win
15.A.accepted B.admitted C.overcame D.met
16.A.as B.like C.for D.to
17.A.knowledge B.journey C.situation D.event
18.A.cruel B.inner C.modern D. dark
19.A.promises B. hopes C. roles D. changes
20.A.touch B. end C. save D. see
However, the two James were different. They were separated from one another and adopted by different families, called Lewis and Springer, a few weeks after they were born and they did not meet until after 39 years.
When the scientists at Minnesota learnt about the two James, they were naturally invited to come to the University, where investigations revealed the most astonishing similarities about their lives:
* Both married girls called Linds, were divorced and then married women called, Betty.
* Both owned dogs called Toy when they were boys.
* Both had worked for the hamburger chain, McDonald's, and at filling station.
* Both had the habit of biting their fingernails.
* Both have similar sleeping problems.
How can one attempt to explain so many coincidences? Is it possible that twins have some mysterious way of communicating? Or does our gene make us take particular decisions in certain circumstances? In any case, it seems that many more aspects of our behavior are influenced by genetic factors than we had previously imagined.
1. What was the piece of good fortune the scientists enjoyed recently?
A The James twins would accept the invitation to the University.
B The James twins met with each other after 39 years' separation.
C The scientists found many interesting cases about twins.
D The scientists discovered a special pair of long-separated twins.
2. Why were the two James different from other twins according to the passage?
A. They shared a lot of similarities.
B. They lived in different families for a long time.
C. They both worked in the hamburger chain.
D. Their parents died when they were very young.
3. The word "coincidence" (Para.4) may mean things that ______.
A. happen around the same time by chance B. astonish people
C. are likely to cause accidents D. are very funny
4. The two James share all of the following similarities except that
A. both married twice
B. both had at least two jobs
C. both suffered from the same disease
D.both kept dogs when they were children
LONDON----Here’s a new warning from health experts: Sitting is deadly.
Scientists are increasingly warning that sitting for prolonged periods — even if you also exercise regularly — could be bad for your health. And it doesn’t matter where the sitting takes place — at the office, at school, in the car or before a computer or TV — just the overall number of hours it occurs. Several studies suggest people who spend most of their days sitting are more likely to be fat, have a heart attack or even die.
In an editorial published this week in the British Journal of Sports Medicine, Elin EkblomBak of the Swedish School of Sport and Health Sciences suggested that authorities rethink how they define physical activity to highlight the dangers of sitting.
While health officials have issued guidelines recommending minimum amounts of physical activity, they haven’t suggested people try to limit how much time they spend in a seated position.
"After four hours of sitting, the body starts to send harmful signals," Ekblom-Bak said. She explained that genes regulating(调节) the amount of glucose（葡萄糖） and fat in the body start to shut down.
Even for people who exercise, spending long periods of time sitting at a desk is still harmful. Tim Armstrong, a physical activity expert at the World Health Organization, said people who exercise every day — but still spend a lot of time sitting — might get more benefit if that exercise were spread across the day, rather than in a single bout.（一回）
Still, in a study published last year that tracked more than 17,000 Canadians for about a dozen years, researchers found people who sat more had a higher death risk, independently of whether or not they exercised.
"We don’t have enough evidence yet to say how much sitting is bad," said Peter Katzmarzyk of the Pennington Biomedical Research Center in Baton Rouge, who led the Canadian study. "But it seems the more you can get up and interrupt this sedentary behavior, the better."
Figures from a U.S. survey in 2003-2004 found Americans spend more than half their time sitting, from working at their desks to sitting in cars.
Experts said more research is needed to figure out just how much sitting is dangerous, and what might be possible to offset those effects.
"People should keep exercising because that has a lot of benefits," Ekblom-Bak said. "But when they’re in the office, they should try to interrupt sitting as often as possible," she said.
1.What is the best title for the text?
A. Not Sitting Too Much While Working B. How To Avoid Sitting Too Much
C. Sitting Too Much Could Be Deadly D. More And More People Sit Too Much
2.According to the research,______________.
A. the more time you spend in exercising in a single bout, the healthier you will be.
B. those who often sit too much are sure to grow fat or suffer from a heart attack.
C. regular exercise is effective to get rid of the side effect of sitting too much.
D. you had better not sit for more than four hours in a single bout.
3.How does the danger of sitting too much affect the human body?
A. It results in a higher death risk.
B. It increases glucose and fat in the body.
C. It makes a person unable to exercise long enough in a day.
D. It causes the gene to fail to balance the glucose and fat in the body.
4.In the opinion of Ekblom-Bak, you’d better have a rest in the office by________.
A. sending your friends e-mails
B. having a walk around your office
C. chatting online or playing computer games
D. listening to music with your head on the desk.
At the age of 13，I visited a doctor with my parents. As I sat in the examining chair，the doctor looked into my 31 .“She did inherit (继承) it，”he said with coldness.“You need to be prepared. There is no 32 for this disease.”
My father 33 a gene which，in most cases，results in blindness. I’d inherited the gene. He gradually 34 his eyesight and so did I. At last we were both 35 blind—he was fifty-seven years old， 36 I was only twenty-eight.
My world 37 as the darkness fell， 38 the dreams my husband and I had for us and for our three little boys. But 39 I tried to find some hope and 40 ，my eyes were opened to a new realization.
My father had 41 me not just failing eyesight，but an example of 42 in the face of hardships as well. We were all living in Bolivia in 1964 when he decided to 43 the family to America. He worked tirelessly to 44 the right of living in the US.
Alone in the States，he 45 his helplessness and lack of fluency in English. He managed to rent a small apartment，and nine months later，sent airline tickets for my mom，my brother and me.
Decades later， 46 an American citizen，I look back at what he'd shown me. He set an example proving that determination is important to success. His 47 taught me valuable lessons for my own path in the darkness.
I did the same as I stepped into a 48 world. I fulfilled (完成) my own 49 as a wife，mom，Sunday school teacher and Spanish interpreter. What I inherited from my father helped me to 50 my life in a whole new light.
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