What is the fifth paragraph mainly about?A. Why people become short-sighted.B. Why natural light has a special chemical.C. Why playing outside is good for one’s eyesight.D. Why daylight is much brighter than indoor light.

题目

What is the fifth paragraph mainly about?

A. Why people become short-sighted.

B. Why natural light has a special chemical.

C. Why playing outside is good for one’s eyesight.

D. Why daylight is much brighter than indoor light.


相似考题

1.BSpending two or three hours playing outdoors each day can reduce a child’s chance of becoming short-sighted, a research shows. It challenges (挑战) the belief that short- sightedness is caused by computer use, watching TV or reading in weak light.The Australian government researchers believe that sunlight is good for people’s eyes. They compared the vision(视力) and habits of 100 seven-year-old children in Singapore and Australia. In all, 30% of the Singaporean children were short-sighted--this rate(比率) was ten times higher than Australian children.Both groups spent a similar amount of time reading, watching television and playing computer games. However, the Australian children spent an average(平均) of two hours a day outdoors—90 minutes more than the Singaporean children.Professor(教授) Ian Morgan, from the Australian Research Council’s Vision Centre, said, “Humans are naturally long-sighted, but when people begin to go to school and spend little or no time outdoors, the number of short-sighted people gets larger. We’re also seeing more and more short-sighted children in cities all around the world—and the main reason may be that city children spend less time outdoors. “Daylight can be hundreds of times brighter than indoor light. But why does playing outside prevent us from becoming short-sighted? Scientists believe that natural light has a special chemical(化学物质) which stops the eyeball from growing out of shape and prevents people becoming short-sighted.So be outdoors. It doesn’t matter if that time is spent having a picnic or playing sports.24. How much time did the Singaporean children spend outdoors on average every day in the research?A. 2 hours. B. 90 minutes. C. 1 hour. D. 30 minutes.

更多“What is the fifth paragraph mainly about?A. Why people become short-sighted.B. Why natural light has a special chemical.C. Why playing outside is good for one’s eyesight.D. Why daylight is much brighter than indoor light.”相关问题
  • 第1题:

    The paragraph following will most likely discuss ________.

    [A] the writer's intelligent definition of humour

    [B] more theories about the mystery of laughter

    [C] why there is humour

    [D] the mystery of humour


    正确答案:B
    根据文章最后一段的具体内容,谈论亚里士多德的另一个部分理论源于柏拉图的幽默理论。文章前面部分作者曾提到历史上有许多伟大的人物试图解释什么是幽默这一问题,而作者到目前为止还只涉及了一个伟人的理论,我们可以推测作者在后面的文章里很有可能会讨论更多伟人的幽默理论。所以本题的正确答案应当为B。

  • 第2题:

    —What about going for a walk? —________________.

    A.It’s good for you

    B.That’s all right

    C.So, do I

    D.Why not? A good idea


    参考答案:D

  • 第3题:

    --What about going for a walk? --- ().

    A、Why not? A good idea

    B、That’s all right

    C、So, do I

    D、Walking is good to you


    参考答案:A

  • 第4题:

    A: What about going for a walk? B: ______________.

    A、Why not? A good idea

    B、That’s all right

    C、So, do I

    D、Walking is good to you


    正确答案:A

  • 第5题:

    According to the author, the reason why we go wrong about our friends is that ______.

    A)we fall to listen carefully when they talk

    B)people tend to be annoyed when we cheek what they say

    C) people usually state one thing hut means another

    D)we tend to doubt what our friends say


    正确答案:C
    答案:C
    [试题分析]细节题。
    [详细解答]本题的答案可以从第二段开头两句看出来 Why do we go wrong about our friends  or our enemies? Sometimes what people say hides their real meaning,可见,选项C的意思与之相符,应为正确答案。

  • 第6题:

    Why are you working in a field other than the one in which you have a degree?


    正确答案:
              

  • 第7题:

    When I try to understand( )that prevents so many Americans from being as happy as one might expect,it seems to me that there are two causes.

    A.why it does
    B.what it does
    C.what it is
    D.why it is

    答案:C
    解析:
    该题考查句子结构。根据题干,“that...might expect”在句中做understand的宾语。宾语从句可由连接词that引导,that仅起连接作用,常可省略。若连接词在句中兼起一个句子成分的作用,则应使用what,how,when,why,who,which,where等连词,但要用陈述语气,根据句意答案为C,连接词在句中做表语。

  • 第8题:

    计划的主要内容包括(),计划必须清楚地确定和描述这些内容。

    • A、What,Why,Who,Where,When,Howmany,How much
    • B、What,Why,We,Where,When,Howto,How much
    • C、What,Why,We,Where,When,How,How much
    • D、What,Why,Who,Where,When,How,How much

    正确答案:D

  • 第9题:

    问答题
    ◆Topic 9: Primary Functions of University Education  Questions for Reference:  1. Most people think that teachers should teach students how to judge right and wrong and how to behave well. Please discuss this view.  2. Why do you think lots of teachers pay much more attention to teaching students academic subjects than other aspects?  3. What’s your opinion of the primary functions of university education? Why do you think so?

    正确答案: 【参考答案】
    There is no doubt that helping students find a job is one of the primary functions of university education, but universities do exist for other purposes such as improving students’ analytical skills and raising students’ moral standards.
    A university education can be seen as a process of improving students’ analytical thinking. The variety of courses offered at university inspires students in various ways, therefore improving their analytical ability. For example, science courses such as math and biology help students develop a rational way of thinking whereas arts courses such as literature let students ponder over issues from a logical, multi-dimensional perspective; and courses in social sciences force students to recognize the ideas that have been traditionally assumed to be acceptable and unproblematic. With the development of these types of analytical thinking, graduates can face future challenges with more confidence and enthusiasm.
    Also, university education is expected to improve students’ moral standards. This is rooted in universities? Belief that students’ awareness of responsibility towards their community and their country is of high importance. In this ever-degrading society and civilization, students are encouraged actively participate in improving the local community. A university that provides care and facilities for physically disadvantaged students may inspire the graduates to better handle situations in the future where they may have to interact with the disabled community. A successful university education is supposed to produce morally sound graduates, therefore increasing their employability.
    In conclusion, university education not only helps students locate a decent job but will also develop other qualities such as enhancing their analytical skills and cultivating their hunger and spirit for life.
    解析: 暂无解析

  • 第10题:

    填空题
    Why is divorce in Australia now easy?  Because all one has to do is change one’s ____

    正确答案: civil status
    解析:
    在澳大利亚,法律已取消了离婚这一条款,离婚只是简单地改变一下身份的问题。也就是说离婚已变得很容易。

  • 第11题:

    问答题
    Do you think your hometown is a good place for young people? Why or why not?

    正确答案: I believe my hometown is a good place for not only the young, but for people of all ages. The young can go to shopping malls and pubs while nice free parks and many convenient facilities are for the old. And you can also visit the famous Qing Pan Mountains and the zoological park.  
    解析:
    可以谈论自己家乡有哪些便利的设施和条件。

  • 第12题:

    问答题
    Do you think your hometown is a good place for the elderly? Why or why not?

    正确答案: Definitely. The elderly will find themselves happily conversing in the beautiful Beiling Park, which consists of a large park, with many gardens. Shenyang is also a city of history; there are lots of history museums and sites. I’m sure the city is suitable for the elderly.
    解析:
    沈阳历史悠久,环境优美,有著名的北陵公园,非常适宜老年人居住。

  • 第13题:

    Tell me about a city you have visited.

    You should say:

    where the city is and when you went there

    what people can see and do in that city

    why that city is special and explain why your visit to that city was memorable.

    You will have to talk about the topic for one to two minutes.

    You will have one minute to think about what you're going to say.

    You can make some notes to help you if you wish.


    正确答案:The city that I visited most recently was Sydney. It's on the coast of South-East Australia and is one of the biggest cities in that country. It's most famous for it's opera house which I went to on a tour. Nearby there is a big bridge—I can't remember the name. It's shaped like an arch. I went there last month to visit a friend. There are many theatres galleries and other cultural things to do there but I spent most of my time just walking around. In the evenings I went out to a few of the bars with my friend. They were a little expensive but I enjoyed the atmosphere and we met some interesting people. There are still some old buildings from the colonial era and I took some photographs of them whenever I saw them on my walks. What makes the city special? I'd say that the people. Most people are friendly and cheerful. They seem very optimistic. They are also very out-going and so Sydney is quite lively in the evenings—at least in the city centre. I'm looking forward to going there again someday.
    The city that I visited most recently was Sydney. It's on the coast of South-East Australia and is one of the biggest cities in that country. It's most famous for it's opera house, which I went to on a tour. Nearby, there is a big bridge—I can't remember the name. It's shaped like an arch. I went there last month to visit a friend. There are many theatres, galleries and other cultural things to do there, but I spent most of my time just walking around. In the evenings, I went out to a few of the bars with my friend. They were a little expensive, but I enjoyed the atmosphere and we met some interesting people. There are still some old buildings from the colonial era and I took some photographs of them whenever I saw them on my walks. What makes the city special? I'd say that the people. Most people are friendly and cheerful. They seem very, optimistic. They are also very out-going and so Sydney is quite lively in the evenings—at least in the city centre. I'm looking forward to going there again someday.

  • 第14题:

    —What a lovely day! Why not go swimming this afternoon? —()

    A、Because it’s raining.

    B、Have a good time!

    C、Why do you go swimming?

    D、It sounds nice!


    参考答案:D

  • 第15题:

    -- I’ll be free this Sunday. -- _____ a swim?

    A. Why don’t you go to

    B. What about going for

    C. How about going to

    D. Why didn’t you go for


    正确答案:B

  • 第16题:

    — _______________? — That’s a good idea.

    A、When can you write the invitations

    B、What do you think of the invitations

    C、Why don’t you write the invitations now

    D、Why not you write the invitations now


    正确答案:C

  • 第17题:

    Other than academic success, what has been your greatest achievement up to date? What do you see as your personal strength, why?


    正确答案:

     

     

  • 第18题:

    Lewis’ research provides an answer to the question 。

    A. why TV is important in family life

    B. why parents should keep good order

    C. why children in small families seem to be quieter

    D. why middle children seem to have more difficulties in life


    正确答案:D
    推理判断题。Lewis的研究表明中间的孩子不受重视,可以推断出这对他们将来的生活会造成一定的影响。

  • 第19题:

    The passage is mainly about__________.

    A.what has brought about less working time
    B.why employees want to make more money
    C.why employees have less leisure time
    D.what a good employee should be like

    答案:C
    解析:
    通过对全文的通读和理解,可知本文一直在围绕着为什么现在工作的人的业余时间那么少。

  • 第20题:

    问答题
    ◆Topic 10: Government’s Control of Violence in Media  Questions for Reference:  1. What negative effects could be brought by the violence in films and on television to our society according to your observation?  2. Do you agree that the government’s control of the amount of violence in films and on television would limit our right of free speech? Why /Why not?  3. Some people put that it is in our best interest as a society for the government to censor broadcast media for violence. Do you think so? Why /Why not?

    正确答案: 【参考答案】
    Whether the government should control the amount of violence in films and on television in order to decrease the violent crimes in society involves a conflict between our right of free speech and the duty of the government to protect its citizenry from potential harm. In my view, our societal interest in preventing the harm that exposure to violence produces takes precedence over the rights of individuals to broadcast this type of content.
    First of all, I believe that exposure to violence does indeed cause similar behavior on the part of those who are exposed to it. Although we may not have conclusive scientific evidence of a cause effect relationship, ample anecdotal evidence establishes a significant correlation. Moreover, both common sense and our experiences with children inform us that people tend to mimic the behavior they are exposed to.
    Secondly, I believe that violence is indeed harmful to a society. The harm it produces is, in my view, both palpable and profound. For the individual, it has a debasing impact on vital human relationships: for the society, it promotes a tendency toward antisocial behavior. Both outcomes, in turn, tear apart the social fabric that holds a society together.
    Those who advocate unbridled individual expression might point out that the right of free speech is intrinsic to a democracy and necessary to its survival. Even so, this right is not absolute, nor is it the most critical element. In my assessment, the interests served by restricting violence in broadcast media are, on balance, more crucial to the survival of a society.
    In sum, it is in our best interest as a society the government to censor broadcast media for violence. Exposure to such media content tends to harm society and its citizenry in ways that are worth preventing, even in light of the resulting infringement of our right of free expression.
    解析: 暂无解析

  • 第21题:

    问答题
    继续性问答:  口试教师:  1.Do you often watch play?why?  2.Who do you often go to watch a play with?Why?  3.Have you watched a play recently?What is it about?  4.What is your favourite play?Why?

    正确答案: 略。
    解析: 暂无解析

  • 第22题:

    单选题
    Why does the author say summer is a good time to take a long vacation from thinking _____?
    A

    Because a long vacation in summer helps to improve people’s mental power.

    B

    Because people tend to be less creative during summer

    C

    Because summer is a good time for outdoor activities

    D

    Because mental exertion in the summer heat taxes too much of people’s energy


    正确答案: A
    解析:
    推理题。第二段的最后一句“It does mean, however, that the mental abilities of large numbers of people tend to be lowest in summer”指出大部分人的智力在夏季处于最低水平。

  • 第23题:

    问答题
    Q4: Do you think it’s a good idea to move staff around within a company from time to time? (Why?/Why not?)

    正确答案:
    A: It might be a good idea to move staff around within a company from time to time. By doing so, a company can promote loyalty to particular projects or to work teams. Nevertheless, it depends on the specific situation for nothing is easy.
    B: Moving staff around within a company from time to time could be a good idea for it could help company implement targeted programs so as to keep the required talent in place. Offering cross-department career paths may be very helpful for employees to redesign their career plan. At the same time, it will bolster staff moral.
    解析: 暂无解析