The shop owner will get all these ordered TV sets to the customers today.
A. delivered B. passed
C. shown D. worked
科目:高中英语 来源:2014-2015学年广东珠海一中等六校高三第二次联考英语试卷(解析版) 题型:阅读理解
Conventional wisdom says that hardship can make us old before our time. In fact, a new study suggests that violence not only leaves long-term scars on children’s bodies, but also changes their DNA, causing changes that are equal to seven to ten years of premature aging (过早老化).
Scientists measured this by studying the ends of children’s chromosomes (染色体), called telomeres, says Idan Shalev, lead author of a study published in Molecular Psychiatry.
Telomeres are special DNA sequences (序列) which prevent the DNA in chromosomes from separating. They get shorter each time a cell divides, until a cell cannot divide any more and dies.
Several factors have been found to shorten telomeres, including smoking, radiation and psychological stresses such as being treated badly when young and taking care of a chronically ill person.
In this study, researchers examined whether exposure to violence could make children’s telomeres shorten faster than normal. They interviewed the mothers of 236 children at ages 5, 7 and 10, asking whether the youngsters had been exposed to domestic violence between the mother and her partner, physical maltreatment by an adult or bullying. Researchers measured the children’s telomeres—in cells obtained from the insides of their cheeks—at ages 5 and 10.
Telomeres shortened faster in kids exposed to two or more types of violence, says Shalev. Unless that pattern changes, the study suggests, these kids could be expected to develop diseases of aging, such as heart attacks or memory loss, seven to 10 years earlier than their peers.
Shalev says there is hope for these kids. His study found that, in rare cases, telomeres can lengthen. Better nutrition, exercise and stress reduction are three things that may be able to lengthen telomeres, he says.
The study confirms a small?but?growing number of studies suggesting that early childhood hardship imprints itself in our chromosomes, says Charles Nelson, a professor of pediatrics and neuroscience at Harvard Medical School.
1.The new study has found that ________.
A. violence leaves scars on a child’s mind
B. violence can speed up a child’s aging
C. hardship can change a child’s aging
D. hardship has a long-term effect on children
2.According to the text, telomeres ________.
A. probably cause a cell to divide quickly
B. can help prevent DNA from separating
C. can make a cell die quickly
D. become shorter before they die
3.All of the following things can shorten telomeres EXCEPT ________.
A. maltreatment B. radiation
C. smoking D. exercising
4.Which of the following is TRUE, according to the text?
A. Researchers measured the children’s telomeres from their legs in the study.
B. Kids interviewed in the study are exposed to two or more types of violence.
C. Children who have shorter telomeres may suffer from a heart attack earlier.
D. Victims of domestic violence have no hopes of lengthening their telomeres.
5.What is the best title for the text?
A. Violence aging children’s DNA
B. Children’s changing DNA patterns
C. Violence and children
D. The function of telomeres
查看答案和解析>>
科目:高中英语 来源:2014-2015学年浙江永嘉楠江中学高一上第二次月考英语试卷(解析版) 题型:单项填空
You’d better _______ your score and see if you have passed the exam.
A. add up to B. add to
C. add up D. add
查看答案和解析>>
科目:高中英语 来源:2014-2015学年浙江温州第六十一中学高二上期中英语试卷(解析版) 题型:阅读理解
One day, when my wife and I were leaving a restaurant, I heard a man's voice from a car in the car-park. After a quick look at the car, I noticed the Pennsylvania license plate (牌照) at once, so I knew they had come from far away. The young man had his head partly out of the window and spoke to me as I moved closer, "Excuse me, my wife and I are trying to find a room for the night and every place in the area seems to be filled up. Do you have any suggestions for us where we might find a room?"
Well, that didn't surprise me. After all, it was the busy time of the year for tourism. As he spoke, I noticed that his wife was pregnant (怀孕的). I told them that they should just keep searching and wished them good luck in their search. The young husband didn't say any other words and backed out of the car-park and headed off. We also got into our car and drove home.
After a short drive, I couldn't get this young couple out of my mind. Here they were, traveling in a different state, tired, the wife pregnant. It was at that moment that my wife told me we needed to go back and find that couple. We went back and looked for them. We even went as far as the mountain. I'm happy that this story had a happy ending. We found them in the end, gave them a room, and now we are close friends.
1.The main problem the young couple had was that they couldn't ________.
A. find a place for the night
B. find a doctor
C. find their way
D. afford to stay at a hotel
2.When the writer told him to keep searching, the young husband _______ .
A. was very happy
B. continued to ask other questions
C. thanked him and drove away
D. said nothing and drove away
3.We can reach a conclusion from the passage that _______ .
A. the writer didn't agree with his wife
B. the writer's wife was a kind person
C. the writer had no trouble finding the young couple
D. the young couple found a room in a hotel in the end
4.Which is NOT the reason why the writer decided to offer help?
A. The couple was not familiar with the state.
B. The couple became tired out.
C. The driver’s wife was to give birth.
D. It was getting dark outside.
5.We can infer from the ending that the writer managed to help the couple by _______.
A. leading them to a hotel B. searching together with them
C. giving a room for them D. renting a room for them
查看答案和解析>>
科目:高中英语 来源:2014-2015学年浙江温州第六十一中学高二上期中英语试卷(解析版) 题型:单项填空
Barack Obama’s first speech as president left a strong impression his audience.
A. on B. in C. at D. by
查看答案和解析>>
科目:高中英语 来源:2014-2015学年浙江温州第六十一中学高二上期中英语试卷(解析版) 题型:单项填空
— What happen over there?
— They argued the waiter the price of the meal.
A. to; for B. against; over
C. for; at D. with; about
查看答案和解析>>
科目:高中英语 来源:2014-2015学年云南富民县第一中学高二上期中英语试卷(解析版) 题型:其他题
1.come to life ________________
2.in advance ___________________
3.make sense _________________
4.break away (from)______________
5.leave out___________________
6.be modelled after _______________
7.apart from__________________
8.break down____________________
9.be to blame_________________
10.consist of_____________________
11.很可能... _________________
12.接近 _______________________
13.代替 ____________________
14.丢脸____________________
15.难怪、不足为奇____________
16.总的来说;通常_______________
17.背对______________________
18.得出结论_____________________
19.对......严格的_______________
20.提出_________________________
查看答案和解析>>
科目:高中英语 来源:2014-2015学年云南富民县第一中学高二上期中英语试卷(解析版) 题型:单项填空
--Tim, you are leaving for the Yellow Stone Park tomorrow. Why not pack your clothes and food up now?
-- .
A Help yourself B. Good idea
C. Go ahead, please D. Me, too
查看答案和解析>>
科目:高中英语 来源:2014-2015学年内蒙古巴彦淖尔市高二上10月月考英语试卷(解析版) 题型:单项填空
Shandong Province is famous ____ Mount Tai.
A. as B. for C. with D. to
查看答案和解析>>
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com