题目
题型：不详难度：来源：
Recently， a group of US scientists did a study (调查) of kids aged between 8 and 13. The study found that if kids sleep for just one extra (额外的) hour each day, the chance of their getting fat is cut by about 30 percent .
Why? When people don"t get enough sleep, they become tired. When they are tired, they don"t exercise enough. Also， kids like snacks: If they are awake (醒着的) an extra hour or two each day，they have more time to eat snacks or other unhealthy foods.
So， how much sleep should you get? Scientists suggest 10 to 11 hours a night for kids aged 5 to 12. For older kids, eight to nine hours will do.
小题1:How many reasons are given why people might get fat without enough sleep?
| A．3. | B．2. | C．1 | D．None. |
| A．10 to 11 hours. | B．8 to 9 hours. | C．8 to 13 hours. | D．As long as possible. |
A. In China. B In Britain. C. In America. D. In Japan.
小题4:What does" eight to nine hours will do" mean?
A. Eight to nine hours" sleep will be good and enough.
B Eight to nine hours" sleep will be too long.
C. Eight to nine hours" sleep will help get fat.
D. Eight to nine hours" sleep will help eat snacks and unhealthy foods.
小题5:What does the passage talk about?
A. How to get long sleep.
B How to keep fat.
C. Enough sleep makes people healthy and slim (苗条)
D. Long sleep makes people healthy and slim.
答案
小题1:B
小题2:A
小题3:C
小题4:A
小题5:C
解析
试题分析：这篇文章主要讲述了充足的睡眠会使人健康和苗条。美国调查发现睡眠不足会使人发胖并说明了原因，文章还告诉我们孩子的睡眠时长。
小题1:细节理解题。根据文章第三段可知没有充足的睡眠会使人发胖有两个原因：1）没有充足的睡眠人们就会累锻炼就少，就容易发胖；2)孩子醒着的时间多，他们吃零食和不健康食品的机会就多，就容易发胖。故选B。
小题2:细节理解题。根据最后一段Scientists suggest 10 to 11 hours a night for kids aged 5 to 12.可知科学家建议5到12岁的孩子每晚休息10到11个小时，故选A。
小题3:细节理解题。根据第二段第一行a group of US scientists did a study (调查) of kids aged between 8 and 13.可知是美国的科学家做的调查，故选C In America.在美国。
小题4:细节理解题。结合上句Scientists suggest 10 to 11 hours a night for kids aged 5 to 12.可知科学家建议5到12岁的孩子每晚休息10到11个小时，那么eight to nine hours will do.意思就是8到9个小时的睡眠就是好的和足够的，故选A。
小题5:主旨大意题。结合全文可知文章主要谈论了充足的睡眠会使人健康和苗条，故选C。
核心考点
试题【Do you get enough sleep? With so much homework it"s often difficult to get the r】；主要考察你对科普环保类等知识点的理解。[详细]
举一反三
First, put two objects with the same weight into two boxes. Then cover the box. Third, wrap one box with a red piece of paper, the other with a white piece of paper. OK. Now hold the boxes with your hand one by one. It is certain that you will think the red one is a little heavier.
Why do you think so? A scientist found that different colors have different weight in a man’s mind. So he did many tests and at last he got the result. That is to say, every color has its own weight in our mind and their order is the same. The heaviest color is red, then blue, green, orange, yellow and white.
The scientist told us that colors also have smell. Can you smell the color? Of course not. Then why did the scientist say so? That is because every color stands for a kind of light with a certain wavelength. It reaches our brain through sense organs.
According to this discovery, scientists say that people accept the colors they like, and refuse the colors they hate. So your body and mind will be healthy by using the colors you like. Or you’ll be nervous or even get ill. For example, if you stay in a room with red windows, wallpapers and furniture for two hours, you’ll feel you have been there for four hours. But if the room is blue, you’ll feel you have been there for only an hour. Another example, if a person walks out of a red room and into a blue room, his temperature will fall. That means our body temperature will change with different colors.
小题1:The purpose of the second paragraph is to tell us ___________.| A．a red box is heavier than a white one |
| B．a color has weight in one’s mind |
| C．white paper is lighter than red paper |
| D．you can know the weight of a color by holding it |
小题2:Why did the scientist say colors have smell?| A．Because people can sense the light from colors. |
| B．Because we can smell colors with our nose. |
| C．Because every color has its own sweet smell. |
| D．Because every color can give off light of the same length. |
小题3:It can be implied from the text that ___________.| A．colors have orders in weight |
| B．colors can change the weight of an object |
| C．people would stay longer in a room with red windows |
| D．colors can affect our mood and health |
小题4:This passage is probably a ___________.| A．book review | B．fiction novel | C．fairy tale | D．science report |
GPS, which means Global Positioning System(全球定位系统), is a small radio receiver. It looks like a mobile phone. You can hold it in your hand, or put in your pocket. It is sometimes put into a watch or a telephone. We also find a GPS in cars, planes, or boats. Some of them have electronic maps, so you know where you are. For example, in a city they can tell you the name of the street.
There are three parts to GPS. The first part is the receiver. You can hold it in your hand, or have it fixed into your car, plane, etc. The second part is a group of satellites going around the Earth. The receiver communicates with at least four of the satellites and calculates its position. The third part of the system is a network of ground stations all over the world. They control (控制) the satellites and make sure they are working well.
Some people think that in the future the GPS will be as common as the mobile. They are becoming better and cheaper. There are also new uses for the GPS. Perhaps they will become like watches. Everyone will have one and you will never be lost again.
小题1:According to the passage, with the help of the GPS, people __________.| A．can’t be lost in a new city |
| B．can’t find their way in different countries |
| C．can learn about the culture of an unknown place |
| D．can spend the least time getting to another place |
小题2:We can learn from the passage that ____________.| A．there are three parts to the GPS |
| B．a GPS can’t be put into a watch |
| C．a GPS can help you start your car |
| D．the GPS are becoming more and more expensive |
小题3:The underlined word “They ” in paragraph 3 means “____________”.| A．Receivers | B．GPS | C．Satellites | D．Ground stations |
小题4:What can we infer(推断) from the passage? | A．All GPS devices have electronic maps. |
| B．People in many countries will use the GPS for free. |
| C．The receiver of the GPS communicates with at least five of the satellites. |
| D．The GPS will become more and more common in everyday life. |
One night as usual, Rakesh found asleep. He decided to play outside again. He went into his teacher—Mrs. Green’s room and saw her . Then Rakesh walked out towards the wall. Near the wall, there was a ladder in the bushes, he hid it there. He the ladders and he climbed up it , then jumped over the wall. at that time his teacher was awake and saw him going out.
got up and took away the from the wall. A few hours , Rakesh returned. In the dark, he tried to climb from the wall. Sadly, there was no ladder, instead, Mrs. Green was standing where the ladder was and waited for him. Rakesh was very to be punished (处罚), but to his surprise, she just helped Rakesh to get onto the ground , said, "Rakesh, at least a warm coat with you, when you go out at night."
Mrs. Green"s made Rakesh know his own faults. He apologized (道歉) and never went out at night again. It is the lesson that he has ever had.
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Do you feel guilty (有罪的) when you have done something wrong? Dogs can feel guilty, too. Sometimes when I come home, my dog gives me a guilty look. Then I know he has done something wrong.
Dogs need love and attention (关心). Some dogs are very unhappy when they are left alone for a long time. Some dogs snaps(撕咬)if they don’t get enough attention.
You may have a dog or you may know a dog. Treat it well if you want to have fun with it. Take it for a walk. Don’t order（命令） it round too much. Try not to punish (惩罚) it. Always remember, a dog has needs and feelings just as you do. Talk to a dog, and it will talk to you.
小题1:When a dog is afraid, it may _______.| A．look down | B．run away | C．bark | D．stare |
小题2:When ______, you know that a dog has done something wrong.| A．It runs away from you | B．Its hair stands up |
| C．its tail shakes (摇摆) | D．it has a guilty look |
小题3:If a dog snaps at things, it may ________.| A．feel lonely | B．be frightened | C．feel sleepy | D．be happy |
小题4:Which of the following would the writer like you to do towards your dog?| A．Leave your dog alone. |
| B．Punish the dog. |
| C．Treat it the way you want to be treated. |
| D．Teach the dog to take orders from you |
Junior school students in Harbin，Heilongjiang，had a "long weekend"．They had four days off from Oct．19-22．It was not for any festival，but was caused by serious smog．
The smog was caused by high levels of PM 2．5 in the air．
PM 2．5 is small particles（微粒） of pollution in the air with a diameter （直径） of 2．5 micrometers or less．Waste gas from cars and factories is the biggest cause of PM 2．5 pollution． On Oct．17，the World Health Organization named air pollution a cause of cancer．
To better protect children，cities are taking action．
On Oct．21，Harbin Education Bureau decided to close primary and junior high schools for two days．
Beijing started a program on Oct．22 which has a warning system with four levels．The red warning is the highest warning level．It means that the next three days will see serious pollution．
When a red warning is issued（发布），schools will close．
If there"s pollution that"s not as serious，the Beijing Commission of Education will ask schools to stop PE classes and outdoor activities．
How will students be informed?
"First，the Commission of Education will inform schools online，" Ye Yan，head of Beijing Shijingshanqu Experimental Primary School，told Beijing Times．"Then teachers will text students’ parents．"
Will the days off affect the study plan?
"Missing school days will be made up during the summer or winter vacations，" said Wang Hao，a physical education teacher in Beijing Chaoyang district．
For students in Harbin who had the long weekend，they would go to school on the next two Saturdays．
根据材料内容选出最佳选项，并在答题卡上将该项涂黑。
小题1:Why did students in Harbin have a long weekend?
| A．Because the weather was extremely cold． |
| B．Because a special festival came． |
| C．Because the winter vacation began． |
| D．Because there happened serious smog． |
| A．It makes water polluted． |
| B．People can see it with eyes． |
| C．It only comes from factories． |
| D．It can cause serious diseases． |
| A．All of the work will be stopped． |
| B．People aren"t allowed to go outside． |
| C．Schools will be closed for a few days． |
| D．Air pollution will be seen in a few weeks． |
| A．写信 | B．发信息 | C．写文章 | D．发邮件 |
| A．What PM 2．5 is made up of． |
| B．How people fight against air pollution． |
| C．What influence the smog brings to school． |
| D．How schools deal with the missing school days． |
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