C
Researchers have just offered evidence in a study that says obesity appears to spread through social ties, much like a virus. When one person gains weight, their close friends often follow. But the findings might also offer hope.
If friends help make obesity acceptable, then they might also be influential in losing the fat. The researchers note that support groups are already an effective tool in dealing with other socially influenced problems, like alcoholism.
The findings appeared in the New England Journal of Medicine. The researchers used information collected from? 12 000 people. It was collected between 1971 and 2003 as part of the Framingham Heart Study.
The information was highly detailed. There was even contact information for close friends of the people in the study.
The researchers examined more than 40 000 social ties. They found that a person’s chances of becoming severely overweight increased by 57% if a friend had become obese.
A sister or brother of a person who became obese had a 40% increased chance of becoming obese. The risk for a wife or husband was a little less than that.
Nicholas Christakis of Harvard Medical School was a lead investigator in the study. He says there is a direct causal relationship between a person getting fat and being followed in weight gain by a friend.
The study found that the sex of the friends was also an influence. In same—sex friendships, a person had a 71% increased risk of becoming obese. Men had a 44% increased risk of becoming obese after weight gain in a brother. In sisters, it was 67%.
The researchers also considered the effect of where people lived in relation to each other. James Fowler of the University of California,San Diego, was the other lead investigator. He says a friend who lives a few hundred kilometers away has as much influence as one in the same neighborhood. He says the study demonstrates the need to consider that a major part of people’s health is tied to their social connections.
Both investigators say their research shows that obesity is not just a private medical issue, but a public health problem.
59.What does the underlined sentence in Para. 2 mean?
A.Obesity has a negative influence on a close friend.
B.Friends might also play a part in losing weight.
C.One might have a positive influence on one’s friend.
D.Friends usually don’t follow each other to lose weight.
60.Who is mostly likely to gain weight?
A.A man who has a fat brother. B.A husband who has a fat wife.
C.A wife who has a fat husband. D.A woman who a fat female friend.
61.Which of the following statements doesn’t the passage agree with?
A.You are sure to lose weight if you have a skinny friend.
B.If one gains weight, one’s friends are likely to get fat.
C.A person’s health is closely linked with his/her social relationship.
D.Even if the friend lives far away, the influence still remains.
62.The reason why the study involves both family members and friends is that_______
A.researchers fail to find a more different sample
B.researchers have different ideas for family members and friends
C.researchers can meet these people regularly
D.researchers can compare the results
科目:高中英語 來源: 題型:閱讀理解
Common indoor plants may prove to be a valuable weapon in the fight against rising levels of indoor air pollution. Those plants in your office or home are not only pretty, but NASA scientists are finding them to be surprisingly useful in absorbing possible harmful gases and cleaning the air inside modern buildings.?
NASA have announced the finds of a 2-year study that suggested the common indoor plants may provide a natural way of helping fight against “Sick Building Syndrome(綜合癥)”.?
Research into the use of biological processes as a means of solving environmental problems, both on Earth and in space habitats, has been carried out for many years by Dr. Bill Wloverton, a senior research scientist at NASA. ?
Based on preliminary evaluations(初步評估) of the use of common indoor plants for indoor air purification(凈化),NASA funded a study using about a dozen popular varieties of attractive plants to determine their effectiveness in removing several key pollutants linked with indoor air pollution. NASA research on indoor has found that living plants are so efficient at absorbing pollutants in the air that some will be launched into space as part of the biological life support system aboard future orbiting space stations.?
While more research is needed, Wolverton says the study has shown that common indoor plants can remove certain pollutants from the indoor environment. “We feel that future results will provide an even stronger argument that common indoor plants can be a very effective part of a system used to provide pollution free homes and work places,” he concludes.?
“Combining nature with technology can increase the effectiveness of plants in removing air pollutants,” he said.
NASA research has always shown that living, green and flowering plants can remove several poisonous chemicals from the air inside buildings. You can use plant in your home or office to improve the quality of the air to make it a more pleasant place to live and work—where people feel better, perform better, and enjoy life more.
The main idea of the passage is _______.?
A. plants are very useful to human beings?
B. indoor plants can help remove indoor air pollution?
C. indoor plants should be raised in both homes and offices?
D. NASA have studied indoor plants for many years?
Why do you think NASA are very interested in indoor plants??
A. Some indoor plants would be used in space stations.?
B. They want to find a way to cure Sick Building Syndrome.?
C. They need indoor plants to carry out their experiments.?
D. Indoor plants are pretty and attractive.?
The underlined word “pollutants” refers to _______.?
A. some kinds of indoor plants B. ways to solve air pollution?
C. research on indoor plants D. poisonous chemicals in the air?
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科目:高中英語 來源: 題型:閱讀理解
Adults are often surprised by how well they remember something they learned as children but have never practised in the meantime. A man who has not had an opportunity to go swimming for years can ___55___ swim as well as ever when he gets back in the water. He can get on a bicycle after several decades and still ___56___ away. A mother who has not ___57___ the words for years can teach her daughter the poem that begins “Twinkle, twinkle, little star” or recite the story of Cinderella or Snow White.
One explanation is the law of over learning, which can be stated as following: ___58___ we have learned something, additional learning increases the ___59___ of time we will remember it.
In childhood, we usually continue to practise such skills as swimming, bicycle riding long after we have learned them. We continue to listen to and ___60___ ourselves of poems such as “Twinkle, twinkle, little star. We not only learn but ___61___.
The law of over learning explains why cramming(突擊學(xué)習(xí)) for an examination, ___62___ it may result in a passing grade, is not a ___63___way to learn a school course. By cramming, a student may learn the subject well enough to get by on the examination, but he is likely soon to forget almost everything he learned. A little over learning; ___64___, is usually a good investment toward the future.
55. A. only B. hardly C. still D. even
56. A. move B. drive C. travel D. ride
57. A. thought about B. cared for C. showed up D. brought up
58. A. Before B. Once C. Until D. Unless
59. A. accuracy B. unit C. limit D. length
60. A. remind B. inform C. warn D. recall
61. A. recite B. overlearn C. research D. improve
62. A. though B. so C. if D. after
63. A. convenient B. demanding C. satisfactory D. swift
64. A. at most B. by the way C. on the other hand D. in the end
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科目:高中英語 來源: 題型:閱讀理解
One of the most remarkable things about the human mind is our ability to imagine the future. In our 1._____we can see what has not yet happened. For example, while we are looking forward to 2._____a new place or country, we 3._____what it will be like. We predict( 預(yù)料) the 4._____ people will eat, dress and act. Of course, we do not always predict things 5._____. Things are often very different from the way we 6._____them to be. One of the 7._____ dreams in history is the dream of the German scientist, Kekule, who had been 8._____ to work out a very difficult problem in physics. He had 9._____and analysed(分析) the problem from every angle(角度) for days, but there 10._____ to be no way of 11._____ out the answer. Then one night he went to bed and dreamed. When he 12._____ up, he realized that he knew the answer. He had solved the problem in his 13._____. The hypnotist(催眠者)sat in the chair opposite him and spoke 14._____: I want you to concentrate on my voice. Think about 15._____. You know nothing but my voice. And as you pay attention to my voice, your 16._____ will get heavier. Soon you’ll be asleep. You will hear my voice and 17._____ my words, but your body will be asleep, your eyes are too heavy. You are 18._____ asleep, and when you wake up you will 19._____ nothing. You will forget everything. Now I am going to 20._____ slowly from one to five. One, two, three, four, five.
1.A.brains | B. senses | C. minds | D. sights |
2.A.visiting | B. seeking | C. reaching | D. discovering |
3.A.imagine | B. know | C. feel | D. guess |
4.A.custom | B. habit | C. style | D. way |
5.A.quickly | B. simply | C. correctly | D. neatly |
6.A.required | B. wished | C. left | D. expected |
7.A.funny | B. dull | C. famous | D. silly |
8.A.managing | B. trying | C. thinking | D. hoping |
9.A.studied | B. learned | C. discussed | D. researched |
10.A.used | B. ought | C. seemed | D. had |
11.A. making | B. finding | C. turning | D. letting |
12.A.gave | B. sat | C. woke | D. got |
13.A.dream | B. lesson | C. research | D. exercise |
14.A.softly | B. loudly | C. slowly | D. firmly |
15.A.everything | B. something | C. nothing | D. anything |
16.A.eyes | B. feet | C. head | D. body |
17.A.believe | B. repeat | C. take | D. understand |
18.A.really | B. extremely | C. actually | D. almost |
19.A.accept | B. remember | C. hear | D. receive |
20.A.count | B. say | C. add | D. Speak |
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科目:高中英語 來源:人教新課標(biāo)選修八 Unit3 Inventors and inventions單 題型:完型填空
第一節(jié):完形填空(共15小題;每小題1.5分,滿分22.5分)
閱讀下面短文,掌握其大意,然后從1~15各題所給的四個選項(A、B、C和D)中選取出最佳選項,并在答題卡上將該項涂黑。
Nick sat in my classroom after school, five years ago, wanting help on a research paper that stood between him and graduation. An 1 student at the school, he felt much worried about his assignment.
Many 2 find themselves in the same position: A child feels lost with 3 and turns to you for help . Not wanting the child to 4 , some parents step in and take over. I could easily tell the 5 between a parent’s writing style and the sudent’s style on homework.
Parents often have purposes, but the result can be harmful. They’re cheating their kids out of the very 6 they want them to get Allowing children to master a skill 7 lifelong gains.
Some ways to help without hurting:
Be a model learner. If your child sees you _8_ papers, magazines or literature, he’ll be _9 motivated to learn.
Ask _10_ needs to be done, and look over completed assignments. This shows that you __11 them to do the work and consider it important enough to review.
If you’re _12 that he or she is falling behind , talk with the teacher about it ___13 doing the work yourself.
Nick made it through fine. I didn’t write her paper. Nor did his mother, instead, we guided him together. At_ 14_ , we are very happy to see him collect his diploma. But _15__ was prouder than Nick. He knew what he had done.
1.A.average B. excellent C. open-minded D. absent-minded
2.A.children B. teachers C. parents D. researchers
3.A.school B. homework C. research D. classroom
4.A.study B. graduate C. succeed D. fail
5.A.difference B. similarity C. comparison D. distance
6.A.homework B. purpose C. education D. school
7.A.results in B. comes from C. makes up D. takes over
8.A.writing B. reading C. collecting D. making
9.A.not B. more C. no longer D. much
10.A.who B. what C. why D. how
11.A.teach B. allow C. expect D. force
12.A.sure B anxious C. worried D. happy
13.A.rather than B. instead of C. except for D. as well as
14.A.classroom B. home C. graduation D. presentation
15.A.everyone B. someone C. anyone D. no one
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科目:高中英語 來源:2010年河北省高一年級期末考試英語卷 題型:閱讀理解
We are all called upon to make a speech at some point in life, but most of us don't do a very good job. This article gives some suggestions on how to give an effective speech.
So, you have to give a speech and you're terrified. You get nervous, you forget what you want to say, you stumble over words, you talk too long and you bore your audience. Later you think, “Thank goodness, it's over. I'm just no good at public speaking. I hope I never have to do that again.”
Cheer up! It doesn't have to be that bad. Here are some simple steps to take the pain out of speech making. Ask yourself the purpose of your speech. What is the occasion? Why are you speaking? Then, gather as many facts as you can on your subject. Spend plenty of time doing your research. Then spend plenty of time organizing your material so that your speech is clear and easy to follow. Use as many examples as possible and use pictures, charts and graphs if they will help you make your points more clearly. Never forget your audience. Don't talk over their heads and don't talk down to them. Treat your audience with respect. They will appreciate your thoughtfulness.
Just remember: Be prepared. Know your subject, your audience and the occasion. Be brief. Say what you have to say and then stop. And be yourself. Let your personality come through so that you make person-to-person contact with your audience.
If you follow these simple steps, you'll see that you don't have to be afraid of public speaking. In fact, you may find the experience so enjoyable that you volunteer to make more speeches! You're not convinced yet. Give it a try and see what happens.
1. We can conclude from Paragraph 2 that many people .
A. talk too long in a speech
B. are happy to give a speech
C. are afraid of giving a speech
D. do not prepare for a speech
2.All of the following statements are true except that .
A. a lecturer does not need to organize his speech
B. few people know how to make good speeches
C. research is important in preparing a speech
D. there are simple steps to improve your speaking
3.The underlined expression “talk over their heads” means “ ”.
A. speak too loudly B. look at the ceiling
C. look down upon them D. use difficult words and ideas
4.The main idea of the passage is that
A. you can improve your speaking ability
B. a poor speaker can never change
C. it's easy to make a short speech
D. it is hard to make a speech
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