题目内容

In America, most people don’t get enough sleep. Children aged 5 to 12 are advised to sleep 10 to 11 hours every night, but most of them can’t sleep that long. A study found that about 41 million American workers got less than six hours of sleep every night. Scientists worry that parents are passing their bad sleeping habits down to their children.
In the study, Reut Gruber and some other scientists either added or reduced on hour of sleep for healthy children aged 7 to 11. They watched the children for five nights. They wanted to know if the amount of sleep can affect a child’s behavior.
Before the study began, students were asked to sleep the same amount of hours as usual. Their teachers were asked to record their behavior. After five nights of the records, scientists found that those who slept one hour less behaved worse than those who slept one hour more. Students with less sleep were more likely to feel sad and had more problems paying attention.
The scientists chose to study children in their homes instead of in a laboratory, because they wanted to find out how everyday changes might affect children’s behavior at school. “In the study, nobody became a talent, and nobody became crazy. But small changes in children can really make a big difference,” says Gruber.
小题1: Scientists worry that_______ may cause children to sleep less.
A.too much homework
B.pressure from parents
C.TV and computer games
D.parents’ bad sleeping habits
小题2: Scientists did the new study in order to know_______.
A.why children can’t get enough sleep
B.how long children should sleep every night
C.what children like to do before they go to sleep
D.if the amount of sleep can affect a child’s behavior
小题3: Who helped do some new study, children with less sleep_______.
A.Teachers. B.Parents. C.Scientists. D.Psychologists.
小题4:According to the new study, children with less sleep_______.
A.were more likely to feel excited
B.were more active in playing games
C.had more problems paying attention
D.didn’t want to answer questions in class
小题5:The new study was done in_______.
A.a laboratory B.a classroom
C.a children’s club D.the children’s homes

小题1:D
小题2:D
小题3:A
小题4:C
小题5:D

试题分析:这篇短文主要介绍了科学家们通过研究想知道睡眠时间是否能影响孩子的行为。通过研究发现睡眠更少的学生更容易感到悲伤有更多的问题要关注
小题1:细节理解题。根据短文第一段Scientists worry that parents are passing their bad sleeping habits down to their children.描述科学家担心父母给他们的孩子传递不良睡眠习惯。故选D
小题2:细节理解题。根据第二段They wanted to know if the amount of sleep can affect a child’s behavior.描述,他们想知道的睡眠时间是否能影响孩子的行为,故选D
小题3:推理判断题。根据第三段Their teachers were asked to record their behavior他们的老师被要求记录他们的行为,可以推断老师帮助做研究。故选A.
小题4:细节理解题。根据第三段Students with less sleep were more likely to feel sad and had more problems paying attention.睡眠更少的学生更容易感到悲伤有更多的问题要关注。故选C
小题5:归纳理解题。根据第四段The scientists chose to study children in their homes instead of in a laboratory,可知试验是在孩子的家中进行的,故选D
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We humans live in different parts of the world, but we have the same “mother”. She gives us everything we need in our daily life. She is our Mother Earth.
April 22 is Earth Day. The theme of this year is “Green Cities”.
A green city is a healthy and pleasant place for people to live, according to the United Nations.
A green city can get its energy from renewable (可再生的) sources like solar (太阳能的) and wind power. Also, it is connected by clean public transportation. Moreover, a green city is made up of facilities (设施) that can save energy and reduce waste.
Around the world, many cities and countries have done well to build themselves in a green way.
Chicago is well known for its green roof (屋顶) program. These roofs are covered with plants. The plants get a great amount of rainwater. Later, the water evaporates (蒸发) to help make the air cool and clean. So far, there are about 360 green roofs in Chicago, according to the US Environmental Protection Agency.
Curitiba, Brazil, has great transportation. It opened the world’s first bus rapid transit (BRT) system in 1974. BRT runs on special lanes. This makes sure that buses are on time even in traffic jams. With the help of BRT, the city has the lowest level of air pollution in Brazil. Today, many other countries have copied BRT, including China and Mexico.
Singapore is home to the first zero-energy building in Southeast Asia. Zero energy means a building is able to create more energy than it uses. Zero-energy buildings work with solar panels (板) mainly on roofs. These panels can make electricity which powers the buildings. By 2030, Singapore plans to build 80 percent of its buildings like this.
小题1:The theme of Earth Day this year is “_______”.
A.Green Roofs B.Green Cities
C.Reducing and Recycling D.Environmental Protection
小题2:The article mentions that there is BRT in the following countries EXCEPT _______.
A.Brazil B.Singapore C.China D.Mexico
小题3:From the passage, we learn that in the three cities _______.
A.people are encouraged to grow plants on their roofs
B.special lanes are designed to solve traffic jams
C.people make good use of solar and wind energy
D.people are provided with a pleasant place to live
小题4:The passage is mainly developed by _______.
A.giving examples B.explaining reasons
C.listing suggestions D.showing different opinions
LONDON—Scientists have found an unusual way to prevent our planet from overheating: move it to a cooler spot. All you have to do is to send a few comets (彗星) in the direction of Earth, and its orbit (轨道) will be changed. Our world will then be sent moving into a safer older part of the solar system.
This idea for improving our climate comes from a group of US NASA (美国航空航天局) engineers and American astronomers. They say their plan could add another six billion years to the useful lifetime of our planet—hopefully doubling its working life.
The plan put forward by Dr. Laughlin, and his colleagues Don Korycansky and Fred Adams, needs carefully directing a comet or asteroid (小行星) so that it passes close by our planet and sends some of its gravitational energy (重力势能) to Earth.
“Earth’s orbital speed would increase as a result and we would move to a higher orbit away from the sun,” Laughlin said.
Engineers would then direct their comet so that it passed close to Jupiter (木星) or Saturn(土星). The comet would pick up energy from one of these giant planets. Later its orbit would bring it back to Earth, and the process would be repeated.
In the short term, the plan provides an ideal way to worldwide warming, although the team was actually worried about a much greater danger. The sun is certain to heat up in about a billion years and so “seriously compromise” our biosphere (生物圈)—by cooking us.
That’s why the group decided to try to save Earth.
The plan has one or two worrying sides, however. For a start, space engineers would have to be very careful about how they directed their asteroid or comet towards Earth. The smallest miscalculation (误算) in orbit could fire it straight at Earth—with deadly results.
There is also the question of the moon. As the present issue of Scientific American magazine points out, if Earth was pushed out of its present location, it is “most likely the moon would be stripped (剥离) away from Earth,” it states. This would greatly change our planet’s climate.
小题1:What makes the scientists plan to move Earth?
A.A few comets are moving to the direction of Earth.
B.Earth’s working life is coming to an end soon.
C.Earth will become too hot for mankind to keep alive.
D.The moon is moving farther and farther away from Earth.
小题2:If the plan is successful, Earth will have a working life of ________ years.
A.12 billionB.6 billionC.18 billionD.24 billion
小题3:What serious problems might the plan cause according to the passage?
A.The comet might hit Earth and man might lose the moon.
B.Earth might be moved too far away and man might die because of the coldness.
C.The comet might hit Jupiter or Saturn and never return to Earth.
D.Earth’s working life might be greatly shortened.
小题4:What does the underlined word “compromise” mean?
A.provideB.benefit (受益)C.shareD.endanger
A big company wanted a clerk, so John went there. In the interview the director(主管) asked him a question.
“Who paid for your school?’
“My mother paid for it by washing clothes.”
Hearing this, the director asked John to show his hands. John showed a pair of hands that were perfect. The director said, “When you go back today, go and clean your mother’s hands, and then see me tomorrow morning”.
When John went back, he happily asked his mother to let him clean her hands. However, his tears fell as he cleaned his mother’s hands. It was the first time he noticed that there were too many bruises(伤痕) in his mother’s hands.  After finishing the cleaning of his mother’s hands, John quietly washed all the remaining clothes for his mother.
Next morning, John went to the director’s office. The director noticed the tears in John’s eyes and asked, “Please tell me your feelings.”
John said, “Number1, I know now what appreciation(感激) is. I would not be successful if my mother didn’t do these things. Number2, by helping my mother, now I realize how difficult it is to get something done.” The director said, “This is what I want to be my clerk. You can get the job.”
小题1:John went to the big company to              .
A.look for his motherB.ask for a job
C.ask the director for helpD.wash clothes
小题2:John’s mother was a(n)         .
A.office clerkB.directorC.clothes cleanerD.doctor
小题3:From the underlined sentence, we learn           .
A.John tried his best to wash clothes for his mother.
B.John often helped his mother do the housework
C.John hardly helped his mother wash clothes.
D.John did all the housework.
小题4:John felt    when he cleaned his mother’s hands.
A.happyB.sorryC.angryD.glad
小题5:Why did the director hire(雇佣) John?
A.Because he thought John learned appreciation
B.Because he thought John had a good education
C.Because he thought John worked hard.
D.Because he thought John could wash clothes.
阅读短文,从每题所给的ABC三个选项中选出最佳答案回答问题或完成句子。
When the traffic lights turn red, we will stop driving a car or crossing a street. Why is red used for traffic lights instead of other colors?
As we know, scattering (散射) happens when light goes through the air. For the same media(媒质), if the wavelength islong, the scattering will be short. If the wavelength is short, then the scattering will be long.
Of all lights we can see red has the longest wavelength, so the scattering is the weakest. That means the red light travels far. In fact, it travels farther on rainy days.
Using the red light can help drivers in farther areas sec the lights. It helps drivers stow down or stop in lime. If drivers don't see the red light until they are close, they may not be able to stop the car in time. An accident may happen Red can also excite people. We can act more quickly when we see the color red. In a word, red lights help drivers stop in time and help prevent accidents.
小题1:When the traffic lights turn ______, we will stop driving a car.
A. red    B green     C. yellow
小题2:According to the passage, the scattering of the red light is the _______.
A. longest    b. weakest       C. farthest
小题3:The underlined word "wavelength" means________ in Chinese.
A.波浪        B.光波      C.波长
小题4:What can the red light help drivers do?
A. It can help drivers in farther areas see the lights.
b. It can help drivers slow down or stop in time.
C. A and b
小题5:Which of the following is the best title?
A. Why do accidents happen
b. How does the red light travel
C. Why do we use red traffic lights
There are many kinds of tigers in the world. The largest tiger is Northeast Tiger. Most Northeast Tigers live in the northeast of China, like Heilongjiang Province(省) and Jilin Province. Because there are many forests, the tigers usually like living there. In the forest, there are not many people getting out and coming in. So the tigers are very free. They can run after each other and eat some small animals.
The Northeast Tigers are different from other tigers. The Northeast Tigers can swim very well, but can’t climb the trees. They can hear very well.
The number of(数量) the tigers is smaller and smaller, we should try our best to protect(保护) the tigers.
小题1:Northeast Tigers can live ________.
A.only in Heilongjiang Province
B.in Jilin Province or Jiangsu Province
C.in the northeast of China
D.in the southeast of China
小题2:The tigers are free because ________.
A.they can play with each other
B.they can eat some small animals
C.there are many trees in the forests
D.people seldom get out and come in the forests
小题3:The small animals are afraid of tigers ________.
A.to eat them for dinnersB.to stay with them
C.to run after them to playD.not to live with them
小题4:The words “run after” means ________.
A.追求B.追逐C.尾随D.跑
小题5:From the passage, we can know that the Northeast Tigers ________.
A.can’t hear very well
B.only live in the northeast of China
C.are good at swimming and climbing trees
D.aren’t the same as other tigers and can’t climb trees
Have you ever heard of H7N9 flu? Some students are afraid of it, and many of them are worried        it. Don’t worry. Here are some        for keeping away from H7N9 flu. Maybe it will be useful for you.
★Often wash your hands.
★Don’t touch your face,        you want to bathe.
★Gargle(漱口) twice a day with warm salt water.
★Clean your nostrils(鼻孔)        least once every day.
★Drink as much warm        as you can. Drinking warm water has the same effect as gargling.
★Have a balanced diet. You should eat more vegetables and fruits that are        in vitamin C. Don’t be afraid of chicken and eggs. If they are well-cooked (煮透的),it’s safe to eat them.
★Have a       lifestyle. Get enough sleep and do some exercise every day. Doing exercise can make your body stronger, and you won’t get H7N9 flu       .
★Also, always        the window and let the fresh air in.
★Schools are helping keep away from H7N9 flu in many ways. Many experts said,  “ Good       will protect you.” So it’s time to keep good habits. If you do so, you needn’t worry. Enjoy your life every day.
小题1:A. about                  B. of                      C. with
小题2:A. advices               B. suggestions              C. way
小题3:A. if                     B. unless                  C. when
小题4:A. on                    B. at                      C. in
小题5:A. drink                  B. tea                     C. water
小题6:A. rich                  B. poor                    C. good
小题7:A. healthy                B. health                   C. unhealthy
小题8:A. easy                  B. easily                    C. any more
小题9:A. close                 B. open                     C. turn on
小题10:A. food                  B. habits                    C. habit
A few years ago, I went to China with my parents. The five-day trip left me with a deep impression.
As the capital of China, Beijing is a very beautiful city with fresh air and clean streets which make the travelers feel very pleased. To my surprise, many people there were learning English. Later I was told that they did so because Beijing would hold the 29th Olympic Games and they wanted most foreigners to understand them. They strictly kept the traffic rules. When there was a red light, no one was seen crossing the street.
Of all the places I visited, I liked the Summer Palace best. To our surprise, although it was winter when we were there, we still saw green trees and many fresh flowers. The whole park was very beautiful.
We visited a very modern football field. We were told the buildings where the Olympic Games would be held were even better than that. I also enjoyed skiing in Xiangshan. Skiing is an interesting and exciting sport liked by many people.
In my eyes, China is a nice place and Chinese people are very kind. In Beijing Station, there were so many people, and most of them were going home to spend the Spring Festival—the most important Chinese festival, with their families. Passengers helped each other carry luggage(行李), and they were very kind to foreigners. We were given a card by the hotel we stayed at, on which was the address of the hotel. With the card we never got lost in the city.
The five days passed quickly, but the trip left me a lot of sweet memories.
根据短文,从题中所给的A、B、C、D四个选项中,选择最佳答案。(10分)
小题1:From the passage, we know the Summer Palace ______ .
A.has flowers only in summer
B.is worth visiting all the year round
C.is a place where people visit only in summer
D.is a place where many people ski in winter
小题2:The writer enjoyed ______ in Xiangshan.
A.skatingB.swimmingC.skiingD.board-skating
小题3:The five-day trip of Beijing was ______.
A.during New Year’s DayB.after the Spring Festival
C.on the Mid-Autumn DayD.before the Spring Festival
小题4:The foreigners were given a card each by the hotel ______.
A.so that they could easily find their hotel
B.in order to go shopping
C.so they could get something freely from the hotel
D.as the New Year’s gift
小题5:In the writer’s eyes, Chinese people ______.
A.are kindB.are helpful
C.strictly kept the traffic rulesD.all of the above

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