日日人人_亚洲美女在线视频_av手机在线播放_国产大片aaa_欧美中文日韩_午夜理伦三级

精英家教網 > 高中英語 > 題目詳情
     People have often wondered about Margaret Thatcher's famous claim that she only needed four
hours of sleep a night. People were amazed that former British Prime Minister had managed to run the
country on so little sleep. Most people need at least seven or eight hours rest every night.
     But now scientists have discovered a gene(基因)that affects the amount of sleep we need and which
allows some people to survive on fewer hours. They found a mother and a daughter who have a rare
gene that allows them to sleep less than the rest of their family -but still feel alert during the day. The pair
managed to stay alert on about six hours sleep a night, two hours less than the rest of their family needs.
     The finding, published in Science magazine, offers a new direction for studies on how sleep affects
health. Experts say adults need seven to nine hours of sleep for good health, while teenagers and kids
need more. People who don’t get enough sleep are more likely to get sick and suffer from memory loss.
     In 2001,scientists at the University of California discovered a mutation(突變)in a gene that causes
people with that gene to have very unusual sleeping patterns. These people go to bed around 7:30 pm
and wake around 3:30 am.
     Now the team has found a gene that affects how long a person can stay asleep. In the family they
studied, the 69-year-old mother and her 44-year-old daughter usually went to bed around 10 pm. The
mother woke up around 4 am, and her daughter woke up around 4:30 am. Both of them felt fully rested.
     Blood tests showed the women have a mutation in a gene named DEC2, which regulates the body's
clock.
     Researcher Ying-Hui Fu bred(培育) mice and fruit flies to carry the mutation. The flies and mice with
the mutation slept less than ordinary flies and mice, and needed less time to recover from little sleep.
1. What is the main idea of the passage?
A. Less sleep does not affect people's health.
B. Different people have different sleeping patterns.
C. New measures can reduce the effect of less sleep on health.
D. The hours we need to sleep may be affected by some gene in our body.
2. The underlined word "alert" in Paragraph 4 is similar in meaning to        .
A. comfortable
B. wide awake
C. quite alive
D. sleepy
3. In the study, the mother and the daughter       .
A. were found to have a mutation in the gene DEC2
B. were asked to sleep less than other family members
C. had the same sleeping pattern as other family members
D. suffered from memory loss for sleeping only six hours a night
4. According to the passage, the new finding can help       .
A. recover memory loss
B. cure sleeping problems
C. get rid of mice and fruit flies more easily
D. explain why some people need less sleep to feel fully rested
練習冊系列答案
相關習題

科目：高中英語 來源：2012-2013學年廣東省惠州市實驗中學高一上學期期中考試英語試卷（帶解析） 題型：閱讀理解

Different people use different languages. We Chinese speak Chinese, and, most of us are learning a foreign language. But there is another kind of language we need to know --- the language of the body.
All over the world, people “talk with their hand, with their heads and with their eyes.” When Japanese people meet, they bow. When Indians meet, they put their hands together. What do American and British do? Americans are more imformal(不拘小節的) than the British. They like to be friendly. They use first names, they ask questions and they talk easily about themselves. When they sit down, they like to relax in their chairs and make themselves comfortable. British people are more reserved(保守的). They take more time to make friends. They like to know you before they ask your name.
When British or American people meet someone for the first time, they shake hands. They do not usually shake hands with people they know well. Women sometimes kiss their women friends, and men kiss women friends (on one cheek only). When a man meets a man, he just smiles, and says, “Hello.” Men do not kiss each other, or hold hands. Even fathers and sons do not often kiss each other.
【小題1】In the passsage, the writer thinks that body language is ______________.

A．uselssB．difficultC．quite easyD．important
【小題2】Which of the following is right?
A．different countries hav the same body language.
B．different countries have different body anguages.
C．people in Asia share the same body language.
D．many people only use their body language.
【小題3】If an American friend visits you, he probably _____________.
A．sit straightB．never sits downC．makes fun of youD．sits freely
【小題4】If you want to make a British friend, you may feel it ________________.
A．imopssibleB．too easyC．too difficultD．slow
【小題5】Generally speaking, ____________ kiss more often.
A．menB．womenC．BritishD．Americans

查看答案和解析>>

科目：高中英語 來源：2015屆廣東省惠州市高一上學期期中考試英語試卷（解析版） 題型：閱讀理解

Different people use different languages. We Chinese speak Chinese, and, most of us are learning a foreign language. But there is another kind of language we need to know --- the language of the body.

All over the world, people “talk with their hand, with their heads and with their eyes.” When Japanese people meet, they bow. When Indians meet, they put their hands together. What do American and British do? Americans are more imformal(不拘小節的) than the British. They like to be friendly. They use first names, they ask questions and they talk easily about themselves. When they sit down, they like to relax in their chairs and make themselves comfortable. British people are more reserved(保守的). They take more time to make friends. They like to know you before they ask your name.

When British or American people meet someone for the first time, they shake hands. They do not usually shake hands with people they know well. Women sometimes kiss their women friends, and men kiss women friends (on one cheek only). When a man meets a man, he just smiles, and says, “Hello.” Men do not kiss each other, or hold hands. Even fathers and sons do not often kiss each other.

1.In the passsage, the writer thinks that body language is ______________.

A．uselss            B．difficult           C．quite easy         D．important

2.Which of the following is right?

A．different countries hav the same body language.

B．different countries have different body anguages.

C．people in Asia share the same body language.

D．many people only use their body language.

3.If an American friend visits you, he probably _____________.

A．sit straight         B．never sits down     C．makes fun of you    D．sits freely

4.If you want to make a British friend, you may feel it ________________.

A．imopssible         B．too easy           C．too difficult        D．slow

5.Generally speaking, ____________ kiss more often.

A．men             B．women           C．British            D．Americans

 

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

Different people use different languages. We Chinese speak Chinese, and, most of us are learning a foreign language. But there is another kind of language we need to know --- the language of the body.
All over the world, people “talk with their hand, with their heads and with their eyes.” When Japanese people meet, they bow. When Indians meet, they put their hands together. What do American and British do? Americans are more imformal(不拘小節的) than the British. They like to be friendly. They use first names, they ask questions and they talk easily about themselves. When they sit down, they like to relax in their chairs and make themselves comfortable. British people are more reserved(保守的). They take more time to make friends. They like to know you before they ask your name.
When British or American people meet someone for the first time, they shake hands. They do not usually shake hands with people they know well. Women sometimes kiss their women friends, and men kiss women friends (on one cheek only). When a man meets a man, he just smiles, and says, “Hello.” Men do not kiss each other, or hold hands. Even fathers and sons do not often kiss each other

  1. 1.

    In the passsage, the writer thinks that body language is______.

    1. A.
      uselss
    2. B.
      difficult
    3. C.
      quite easy
    4. D.
      important
  2. 2.

    Which of the following is right?

    1. A.
      different countries hav the same body language
    2. B.
      different countries have different body anguages
    3. C.
      people in Asia share the same body language
    4. D.
      many people only use their body language
  3. 3.

    If an American friend visits you, he probably______.

    1. A.
      sit straight
    2. B.
      never sits down
    3. C.
      makes fun of you
    4. D.
      sits freely
  4. 4.

    If you want to make a British friend, you may feel it______.

    1. A.
      imopssible
    2. B.
      too easy
    3. C.
      too difficult
    4. D.
      slow
  5. 5.

    Generally speaking, ______kiss more often

    1. A.
      men
    2. B.
      women
    3. C.
      British
    4. D.
      Americans

查看答案和解析>>

同步練習冊答案
主站蜘蛛池模板： 亚洲视频免费观看 | 亚洲成人网络 | 色噜噜狠狠色综合中国 | 国产亚洲成av人片在线观看桃 | 91在线精品一区二区三区 | 涩久久| 久久久久久亚洲 | 国产一区二区三区在线免费观看 | 亚洲一级毛片 | 91色在线 | 亚洲精品久久久久久国产精华液 | 中文在线 | 中文 | 欧美日韩国产在线观看 | 国产精品久久久久久中文字 | www婷婷av久久久影片 | 国产精品爱久久久久久久 | 色综合久久网 | 先锋资源中文字幕 | 黄频免费在线观看 | 国产成人精品久久 | 四虎首页| 成年人网站国产 | 亚洲精品一二区 | 久久新视频 | 欧洲毛片| 黄色电影在线免费观看 | 午夜日韩| 97精品在线| 日中文字幕在线 | 国产精品一区在线观看 | 一区二区三区不卡视频 | 国产精品美女久久久久aⅴ国产馆 | 色黄视频在线 | 青青草在线免费视频 | 日精品 | 99精品视频在线 | 国精产品一区一区三区免费完 | 看毛片网站 | 91久久久久久久久久久久久久久久 | 激情91 | 成人日批|