题目列表(包括答案和解析)
You may know about “ junk food” like French fries. But do you know about “junk sleep”?
Recently, a British survey found that electronic(电子) products in teenagers bedrooms are affecting(影响)their sleep.
The survey was done among 1,000 British kids from 12 to 16. It found that thirty percent of them got just 4 to 7 hours sleep every day. But doctors say they need 8 to 9 hours.
Almost a quarter of the kids said they fell asleep more than once a week while watching TV, listening to music or using other electronic products.
“This is very worrying.” Said Dr Chris Idzikowski, a British expert, “We call it ‘junk sleep’, It means you don’t get enough sleep and the quality of the sleep is bad, too. If you don’t get good rest, you don’t perform well in school the next day.”
The survey found that 40 percent of the kids felt tired each day, with girls between 13 and 16 feeling the worst. Nearly all the teenagers have a phone, Mp4 or TV IN THEIR BEDROOM. And many of them have all three.
【小题1】 This passage is mainly about______.
| A.junk food | B.junk sleep |
| C.electronic products | D.the importance of sleep |
| A.200 | B.300 |
| C.500 | D.1,000 |
| A.they are both low in quality | B.they are both produced in factories |
| C.people enjoy both in their spare time | D.they are both good to people’s health |
| A.Teenagers need 4 to 7 hours of sleep each day. |
| B.Few of the teenagers have a phone in their bedrooms. |
| C.Teenagers spend too much time on electronic products. |
| D.Girls between 15 and 16 spend the least time on electronic products. |
| A.Parents watch TV together with their children |
| B.Forbid teenagers to use any electronic product. |
| C.Teenagers limit (限制) their use of the electronic products. |
| D.The use of mobile phone and Mp4 is not allowed at school |
Mrs. King is an American doctor. She is now in China. She works in a Children’s Hospital in Beijing. She is also learning Chinese medicine(医术) there. She likes Chinese medicine very much. She loves working for children. She works hard in the day and reads English books on(关于) Chinese medicine at night. She learns Chinese from the Chinese doctors and her Chinese friends. Now she can speak some Chinese. She can read some Chinese books, too.
Her husband Mr. King is a teacher. He teaches English in a junior high school in Beijing. He works hard, too. He works from Monday to Friday. He teaches three classes every day. Sometimes, on Saturdays and Sundays, he teaches other English classes. He wants to make more money(挣更多钱).
1.Mrs. King works in a _____ .
A.shop B.junior high school in Beijing
C.hospital in America D.hospital in Beijing
2.Both of the Kings _____ .
A.live in America B.live in Shanghai
C.work hard D.work every day
3.Mrs. King learns Chinese from _____ .
A.her teacher B.the books
C.the doctors D.the Chinese doctors and her Chinese friends
4.Which of the following sentences is NOT true?
A.Mrs. King can speak English and Chinese.
B.Mrs. King knows much about Chinese medicine.
C.Mrs. King is from America.
D.Mr. King sometimes teaches other English classes on weekends.
The doctors in Beijing did all they could______ Shao Zhanwei, mayor of Hangzhou, but he still died of heart attack at the age of 58.
A.save B.to save C.saved D.saving
DNA is the whole “map” of the human body. It is something that all humans have, and it tells the body what to do. DNA is the reason that we look like our parents, because we get some of their DNA to make our own.
People have been trying to understand the human body for a long time, In1860, Mr Mendel discovered why we look the same as other people in our family. It is because of small things called “genes”(基因) in our body. In 1953, two scientists, Watson and Crick, found out that those small parts are really messages . They’re written in the DNA with a special language.
In1961, another two scientists found the first “word” that they could understand in that language. It shows how DNA tells the cell﹙细胞﹚to build its parts. So far, scientists have found all the words in the DNA map, but we still do not understand what they all do. By understanding what just one “word ”means, we can help to save people from several illness. So the more we understand, the more doctors will be able to do.
Most people hope that this will help to make better medicine and help sick people. Other people worry that when we learn more “words” and find out more information, we will use it in the wrong way, just to make people more attractive (有吸引力的),or stop sick people getting jobs.
【小题1】When did Mr Mendel discover why we look the same as other people in our family?
A. In 2000. B. In 1961 C. In 1953 D In 1860
【小题2】What did the two scientists find in 1961? They found_____.
| A.all the words in the DNA map |
| B.Small things called “genes” in our body |
| C.The first “word” they could understand in that language |
| D.those small parts are written in the DNA with a special language |
| A.Make better medicine. | B.Make them get jobs. |
| C.Make maps for them. | D.Make them attractive |
| A.We look like our parents because of “genes” in our body |
| B.We have understand what all the words in the DNA map do |
| C.DNA is the whole “map” of the human body. |
| D.DNA tells the cell to build its parts. |
| A.It can be only bad | B.It can be only good |
| C.It can be good but won’t work | D.It can be good and bad |
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