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    37．A．much B．enough C．little D．lots of 【查看更多】

     

    题目列表(包括答案和解析)

    A study finds that not enough morning light causes teenagers not to get enough sleep at night. “As teenagers spend more time indoors, they miss necessary morning light. Day light is needed to keep the balance of the body’s 24-hour biological system (生物系统), which regulates (调节) body temperature and sleep styles,” reports Dr. Mariana Figueiro. “These teenagers who receive little morning light are going to bed later, getting less sleep and doing badly in tests. They are more likely to fail in their exams.”
    In the study, Dr. Figueiro asked 11 students in Grade 8 to wear special glasses to prevent blue morning light from reaching their eyes. At the end of the 5-day study she found that they fell asleep 30 minutes later than usual.
    Throughout her research, Dr. Figueiro has been very worried about teenagers going to bed too late. The problem is that today’s schools require teenagers to be in school very early in the morning. These students are likely to miss the morning light because they often go to school before the sun is up or as it’s just rising.
    Furthermore (此外), the schools are not likely to provide enough electric light to keep the balance of this biological system. Our biological system is much more sensitive (敏感的) to blue light. Therefore, having lots of light in the classroom does not make sure that there is enough light to keep our biological system balanced.
    小题1:Which of the following is the result of the study?
    A．Blue light in the morning harms the biological system.
    B．Not enough morning light keeps teenagers sleep less.
    C．Not getting more light in the morning make teenagers happy.
    D．Not enough sleep makes teenagers fail in tests.
    小题2:We know from the passage that morning light __________.
    A．has the same effects as afternoon light
    B．may change studying habits of teenagers
    C．is important to children’s biological system
    D．has no effect on students’ tests
    小题3:What’s the problem of the students according to the study?
    A．There are not enough electric lights in the classroom.
    B．Being in school early affects their study habits.
    C．They have to go to bed very early to have enough sleep.
    D．They go to school too early to get enough morning light.

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    Many years ago，there were lots of trees on earth，because summer lasted a whole year．What was the forest like? It is not difficult to see，because parts of that ancient（古老的）forest still stand．It is the rainforest．Here，even in a sunny day water drops through the leaves．

    Today's largest rainforest is in South America．It covers about a million square miles．All the trees are very tall；the young trees are nearly sixty feet high．But it is not easy for some to grow higher because very little sunlight leaches them．

    Many trees are about 60 to 120 feet high．Some are even taller．The tallest trees can be 200 feet high．

    In this forest of tall trees，plant life is rich，animal life is rich，too．At different heights live different animals and many different noises can let you know where they are．

    根据短文内容，选择最佳答案。

    1．There were lots of trees on earth many years ago because of the _________．

    A．cold weather          B．largest forest          C．warm weather               D．rainforest

    2．A rainforest has enough _________．

    A．trees                    B．rainfall（雨量）      C．forest                    D．leaves

    3．There is rainforest _________．

    A．only in South America                              B．only in the old days

    C．in some parts of the world                          D．below the sea

    4．Young trees share little sunlight because _________．

    A．tall trees are above them                           B．there isn't enough sunlight

    C．they needn't much sunlight                          D．it is summer the whole year

    5．You can always find different animals by _________．

    A．their colors                                             B．the noises they make

    C．climbing the trees                                       D．watching them carefully

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    Parents are the closest people to you in the world．They love you just because you are you．And they would do anything for you．

        Like a lot of middle school students，ZhuangShuxia has a problem．She and her parents don’t get on well．

        “I really want to be my Daddy’s little girl．But it feels like he just doesn’t understand．He talks at me and doesn’t listen，”said Zhuang，a Junior 3 student

        Do you and your parents also have problems?

        Well, why don’t you all take a walk and have a talk on Saturday? It’s the International(国际的) Day of Families．On May l5，people around the world give thanks for good things about their families and work on family problems．

        A study last year showed that l,500 Beijing families had the same problem as Zhuang’s family：The children，12 to 15 years old，didn’t like talking with their parents much．They weren’t happy at home．

        Of course，lots of kids feel that way．But you and your parents will be much happier if you can be friends．Here are some ways to have a good talk with them：

        Find a good time to talk，like when you’re eating dinner, going out for a walk or watching TV．

       Tell them something you’re interested in，or ask them about their lives when they were young．They love to talk about it．

       Listen to them carefully，and look them in the eye．

       Be honest(诚实的)．Your parents will trust(信任)you more．And a trusting family is a happy family．

    1. Who are the closest people to us according to the writer of this passage?

    A. The people who love us.          

    B. The people who understand us.

    C. Our father and mother.          

    D. All the family members.

    2. What is Zhuang Shuxia's problem?

         A. Her father thinks she is old enough.

         B. Her father doesn't like to talk with her.

         C. She really wants to be a little girl again.

         D. She and her father don't understand each other well.

    3. What does the writer suggest (建议) the students do on the International Day of Families?

         A. They should remember the special day for the families in the world.

         B. They should take a walk and have a talk with their parents.

         C. They should do something to celebrate the International Day of Families.

         D. They should help others to solve their family problems.

    4. How does the writer know 1,500 families had the same problem as Zhuang's family?

         A. From a study made in Beijing.

         B. From reports about family problems.

         C. From discussions with parents and their children.

         D. From a report on the International Day of Families.

    5. In this passage the writer tells the children,12 to 15 years old,           

         A. how to show their thanks to their parents

         B. how to make friends with their parents

         C. how to feel happier at home in different ways

         D. how to win their parents' trust by listening to their parents

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    　　Do you know sotriething about tree rings (年轮)? Do you know they can tell us what the weather was like, sometimes even hundreds of years ago?

    　　A tree will grow well in a climate with lots of sunshine and rainfall. And little sunshine or rainfall will limit the growth of a tree. We can see the change of climate by studying the tree rings. For example, to find out the weather of ten years ago, count the rings of a tree from the outside to the inside, if it is near to the eleventh ring, then the climate that year was bad.

    　　Tree rings are important not only for studying the history of weather but also for studying the history of human. Many centuries ago there lived a lot of people at a place in New Mexico. But now you can find only sand there --- no trees and no people. What happened?

    　　A scientist studied the rings of dead trees there. He found that the people had to leave because they had cut down all the trees to make fires and buildings. As all the trees had gone, the people there had to move.

    (1) ________ in good climate.

    [　　]

    A．Tree rings grow far from each other

    B．Tree rings become thinner

    C．Tree don't need sunshine or rainfall

    D．People can cut down most of the trees

    (2) The scientists are interested in studying tree rings because tree rings can tell ________.

    [　　]

    A．whether a tree was strong or not

    B．whether people took good care of the trees or not

    C．whether the climate was good or not

    D．how old the trees were

    (3) If you want to find out the weather of twenty years ago, you should study ________ of a tree from the outside to the inside.

    [　　]

    A．the twentieth ring

    B．the tenth ring

    C．the nineteenth ring

    D．the twenty-first ring

    (4) Why did people usually live in places with lots of trees?

    [　　]

    A．Trees could tell the change of the weather.

    B．Trees brought lots of sunshine and rain.

    C．Trees could make weather not too hot or too cold.

    D．Trees could be used for burning and for building houses.

    (5) The people had to leave the place in New Mexico ________.

    [　　]

    A．because bad weather stopped the growth of trees

    B．because they no longer had water and the land became sand

    C．because they didn't have enough trees for burning

    D．because there was too much rain there

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    阅读理解

    　　Do you know something about tree rings(年轮)? Do you know they can tell us what the weather was like, sometimes even hundreds of years ago?

    　　A tree will grow well in a climate(气候)with lots of sunshine and rainfall．And little sunshine or rainfall will limit(限制)the growth of climate by studying the tree rings．For example, to find out the weather of ten years ago, count the rings of a tree from the outside to the inside．If the tenth ring is far from the eleventh ring, then we’re sure that it was sunny and rainy most of that year．If it is near to the eleventh ring, then the climate that year was bad．

    　　Tree rings are important not only for studying the history of weather but also for studying the history of man．Many centuries ago there lived a lot of people at a place in New Mexico．But now you can find only sand there－no trees and no people．What happened?

    　　A scientist studied the rings of dead trees there．He found that the people had to leave because they had cut down all the trees to make fires and buildings．As all the trees had gone, the people there had to move．

    (1)

    ________ in good climate．

    [　　]

    A．

    Tree rings grow far from each other

    B．

    Tree rings become thinner

    C．

    Trees don’t need sunshine or rainfall

    D．

    People can cut down most of the trees

    (2)

    The scientists are interested in studying tree rings because tree rings can tell ________．

    [　　]

    A．

    whether a tree was strong or not

    B．

    whether people took good care of the trees or not

    C．

    whether the climate was good or not

    D．

    how old the trees were

    (3)

    If you want to find out the weather of twenty years ago, you should study ________．

    [　　]

    A．

    the twentieth ring

    B．

    the tenth ring

    C．

    the nineteenth ring

    D．

    the twenty-first ring

    (4)

    Why did people usually live in places with lots of trees?

    [　　]

    A．

    Trees could tell the change of the weather

    B．

    Trees brought lots of sunshine and rain

    C．

    Trees could make weather not too hot or too cold

    D．

    Trees could be used for burning and for building house

    (5)

    The people had to leave the place in New Mexico because ________．

    [　　]

    A．

    had weather stopped the growth of trees

    B．

    they no longer had water and the land became sand

    C．

    they didn’t have enough trees for burning

    D．

    there was too much rain there

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