A. | hear from | B. | hear of | ||
C. | hear about | D. | receive a letter |
年級 | 高中課程 | 年級 | 初中課程 |
高一 | 高一免費(fèi)課程推薦! | 初一 | 初一免費(fèi)課程推薦! |
高二 | 高二免費(fèi)課程推薦! | 初二 | 初二免費(fèi)課程推薦! |
高三 | 高三免費(fèi)課程推薦! | 初三 | 初三免費(fèi)課程推薦! |
科目:初中英語 來源:2016屆江蘇南京玄武區(qū)九年級5月測試(二模)英語試卷(解析版) 題型:閱讀理解
Do you sometimes find you want to eat chocolate or ice cream very much? Do you then make it but feel guilty about it later?
The next time this happens to you, think back if you have had enough sleep over the last 3-5 days. Many adults and even teens have noticed that they crave "midnight snacks" when working or watching TV late.
New research shows that lack of sleep could lead us to have an increased appetite (食欲)- especially for the unhealthy kind.
Recently, researchers at the University of Chicago carried out a study that clearly shows that a lack of sleep actually changes our brain chemistry! Studies were done on two control groups over four days. Both groups had their food and sleep strictly controlled. All of them received three meals. The only difference was that one group was allowed to sleep for 7.5 hours while the other group slept for a little more than four hours.
During the following visit, their sleep patterns were exchanged. After the last night of the session, the volunteers were offered as much food as they wanted to eat. Researchers noticed that in both sessions, people who sleep less ate on an average 300 calories more than those who had slept more. This was much more calories than what their bodies would need to make up for the three fewer hours of sleep.
What Is Going On?
The researchers then analyzed the chemicals (化學(xué)成分) in the blood of the people in the study. What they noticed was surprising. High levels of ghrelin (a chemical that makes us hungry) and lower levels of leptin (the chemical that tells the brain that it is satisfied) were found in the people with less sleep.
Even more surprising was that this group had higher levels of endocannabinoids - the same chemical that is caused by drugs such as cannabis (大麻). The endocannabinoid system causes a craving for sugar and fatty foods and leads to overeating even when the body is not hungry. This study suggests that sleep changes help produce chemicals in the body that are similar to taking drugs!
Furthermore, researchers noticed that food cravings continued for a long period of time, well after the lack of sleep. This increases the risk of over-eating for longer periods, leading to obesity (肥胖).
Your body needs 7-8 hours of sleep each night. So, the next time you reach for a bag of chips or a slice of decadent cake, think of the amount of sleep you have had recently!
1.According to the passage, people want to eat more when they ________.
A.work B.watch TV C.sleep less D.sleep more
2.The word ‘crave’ in paragraph 2 most probably means ________.
A.hope B.want C.hate D.dislike
3.From the passage, we can learn that ________.
A.people feel guilty about eating chocolate
B.unhealthy food makes people sleep less and less
C.a(chǎn) person’s sleep has nothing to do with his/her appetite
D.a(chǎn) study about sleep and obesity was carried out at the University of Chicago
4.The chemical that makes us feel hungry is called ________.
A.ghrelin B.leptim
C.cannabis D.endocannabinoids
5.This article is mainly about ________.
A.researchers working on people’s sleep
B.how people’s sleep influences their appetite
C.how much people need to eat after sleeping less
D.A research about chemicals in the blood of people
查看答案和解析>>
科目:初中英語 來源:2016-2017學(xué)年河北石家莊井陘礦區(qū)實(shí)驗(yàn)中學(xué)八年級上開學(xué)考試英語卷(解析版) 題型:單項(xiàng)填空
—I feel tired and sleepy. —Why not stop____ for a while?
A. rest B. to rest C. resting D. rested
查看答案和解析>>
科目:初中英語 來源:2016屆福建福安溪潭中學(xué)九年級下學(xué)期質(zhì)量檢測英語試卷(解析版) 題型:閱讀理解
Reading is very important. World Book Day falls on April 23 every year. It encourages
people, especially teenagers, to discover the pleasure of reading. 1._____________
Many countries celebrate World Book Day. On that day, millions of school children can buy
books at a much lower price than usual in any bookstore in England. It has been done every year
since 1998. 2.___________________ Wen Jiabao, Premier of China, is an avid (熱心的) reader. He does lots of reading every day though he is very busy. On World Book Day 2009, he called on (號召) people to do more reading. Wen suggested that young people should spend more time reading. “Books can not change the world, but people can change the world by changing themselves through reading,” he said.
3._____________ Reading helps us to follow the latest developments of science and technology. Reading gives us information about other cultures and places in the world. Reading is also one of the most important ways to learn a foreign language like English. We all know that it is
diliicult to learn everything in the classroom, for example, the ways English people are living and working today can be learnt by reading.
Books, magazines, newspapers and other kinds of reading materials can help us to know
more about the outside world. 4._______________
A. So it is necessary for us to spend time reading every day. B. It is also the day to honor great writers. . C. Reading helps us become more knowledgeable and smarter. D. World Book Day is also celebrated in China. |
5. What’s the best title for the article?
A. World Book Day in England.
B. Suggestions on Reading.
C. World Book Day in China.
D. World Book Day and the Advantages of Reading.
查看答案和解析>>
科目:初中英語 來源: 題型:選擇題
A. | stubborn enough | B. | energetic enough | ||
C. | kind-hearted enough | D. | strong enough |
查看答案和解析>>
科目:初中英語 來源: 題型:選擇題
A. | may | B. | must | C. | can't | D. | mustn't |
查看答案和解析>>
科目:初中英語 來源: 題型:選擇題
A. | another | B. | the other | C. | other | D. | other's |
查看答案和解析>>
科目:初中英語 來源: 題型:選擇題
A. | draw | B. | cry | C. | pass | D. | push |
查看答案和解析>>
湖北省互聯(lián)網(wǎng)違法和不良信息舉報平臺 | 網(wǎng)上有害信息舉報專區(qū) | 電信詐騙舉報專區(qū) | 涉歷史虛無主義有害信息舉報專區(qū) | 涉企侵權(quán)舉報專區(qū)
違法和不良信息舉報電話:027-86699610 舉報郵箱:58377363@163.com