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阅读短文,选择正确的答案。
     How do you remember the way to your house?Where do dreams come from? It is your brain (大脑)
that does these things. A British scientist showed that "sleep can improve one"s memory." It" s not a
dream for students to study when they sleep.
     In fact,  your brain is working day and night. If you learn words before bed, a certain part of the
brain may help you to remember the words while you sleep. What" s more, another scientist in the USA
foundthat there was a " talent button (天才按钮)" in the human brain. It might make a person more
talented.
     There are more interesting things about the brain. Your brain uses less energy than a fridge light. Just
two bananas can give the brain enough energy to work for a whole day. According to some scientists,
yawning (打哈欠) keeps our brains"cool", which makes us think quicker.
     Here are some pieces of advice to keep a good brain:
     ·Eat healthy food.
     ·Get a lot of playtime or exercise.
     ·Don"t drink or smoke.
     ·Use your brain a lot.
l. A British scientist found out that              could improve our memories.
A. drink              
B. dreams
C. sleep                
D. bananas
2. According to the passage,  if we want to have a good brain, we should             .
A. use our brains more
B. sleep fewer hours
C. work longer hours
D. remember fewer things
3. Which of the following is TRUE according to the passage?
A. Our brains only work in the daytime.
B. Our brains need much energy every day.
C. Smoking can keep our brains healthy.
D. Getting exercise is good for our brains.
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试题【阅读短文,选择正确的答案。     How do you remember the way to your house?Where do dreams come】;主要考察你对科普环保类等知识点的理解。[详细]
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阅读理解。     Everyone knows that exercise is important. We all need to exercise. Doctors say it is good for us.  It
 makes you strong and smart.  If" you exercise every day, you can get good grades in the exam and do
  homework well.
     There are many ways to exercise. You can walk, run, swim, skate, or play ball games. But remember:
 exercise enough, but not too much. It"s best to exercise thirty minutes each time.
     Many people go to special places to exercise. People call them "health centers". They have a lot of
 equipment there. The equipment will help exercise your arms, legs and other parts of your body.
     Exercise can be fun, Friends can exercise together at a health center or play sports together.l. Which of the following isn"t the result (结果) of exercise ?       A. It can make us strong and smart.
    B. It can make us do work well.
    C. It can make us get good grades.
    D. It can make us heavy. 2. If  you want to be healthy, you can"t _____ .     A. walk or skate        
    B. run or swim
    C. swim or play soccer  
    D. watch TV all day3. It"s best to exercise _____ each time.       A. twenty minutes    
    B. thirty minutes
    C. forty minutes      
    D. fifty minutes4. The underlined word " equipment" means "_____ " in Chinese.    A. 器材  
    B. 机器
    C. 武器  
    D. 武装5. Which of the following is WRONG?    A. Friends can exercise together.    
    B. We should exercise too much.
    C. We all need to exercise.
    D. Exercise can bring us fun.
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阅读理解。     Scientists are trying to make the deserts (沙漠) into good land again. They want to bring water to the
deserts, so people can live and grow food, They are learning a lot about the deserts. But more and more
of" the earth is becoming desert all the time. Scientists may not be able to change the desert in time.
     Why is more and more land becoming desert? Scientists think that people make deserts. People are
doing bad things to the earth.
     Some places on the earth don"t get much rain. But they still don"t become deserts. This is because
some green plants are growing there. Small green plants and grass are very important to dry places.
Plants don"t let the hot sun make the earth even drier. Plants don"t let the wind blow the dirt away. When
a little bit of rain falls, the plants hold the water. Without plants, the land can become a desert much more
easily.
根据短文内容,选择正确答案。
l. Deserts              
A. get a little rain
B. never have any plants or animals in them
C. can"t be turned into good land in the future
D. both A and C
2. Small green plants are very important to dry places because              .
A. they don"t let the sun make the earth even drier
B. they don"t let the wind blow the earth away
C. they hold the water
D. A, B and C
3. Land is becoming desert little by little because              
A. plants can"t grow there
B. there"s not enough rain
C. people are doing bad things to the earth
D. scientists know little about desert
4. Which is the main idea of the first paragraph?
A. Scientists know how to change deserts into good land.
B. Land is becoming desert faster than scientists can change it back into good land.
C. If scientists can bring water to the desert, people can live there.
D. More and more places are becoming deserts all the time.
5. After reading this paragraph, we learn that               
A. plants can keep dry land from becoming desert
B. it is good to get rid of (清除) the grass in the desert
C. all places without much rain will become deserts
D. it is better to grow crops on dry land than to grow grass
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任务型阅读“低碳生活,从我做起!”请仔细阅读下列材料,找出以下五种“低碳”行为产生的直接效应。
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A. Saving electric energy
B. Protecting forests
C. Saving water
D. Protecting animals
E. Producing less air pollution
阅读理解。
     Put 2 February in your diary! It is World Wetlands Day! This special day was first celebrated in 1997
and it is celebrated every year.
     The celebration is a call for action. It is a way to show people how important and useful the wetlands
are  for  humans. On  World  Wetlands  Day,  people  around  the  world  take  part  in  many wetlands
activities.  Children  draw  pictures  to  advertise  the day.  People  get  together  to  clean up their local
wetlands.
     Wetlands help protect nature and  fresh  water.  In  wetlands, there  are many small animals such as
lizards,  frogs,  dragonflies  and butterflies. They play an important part in keeping the balance of nature.
All plants and animals are part of the food chain (食物链). If the small, wetland animals die, some other
animals in the food chain will have nothing to eat. They will also die.
     People need the wetland to keep the balance of nature in the world. If we don"t protect nature today,
it will be gone tomorrow.
1. We should write down ________ in our diary. It is World Wetlands Day.
A. importance      
B. 2 February        
C. celebration    
D. 1997
2. People celebrate World Wetlands Day ________ .
A. at home    
B. on their own    
C. all over the world  
D. at local meetings
3. Children in many countries ________ on World Wetlands Day.
A. make boats to pick up rubbish          
B. take part in dragon-boat races
C. draw pictures to do advertising          
D. listing to talks about the wetlands
4. There will be ________ in the future if there are no wetlands.
A. less fresh water for people         
B. no wild animals any more
C. not any humans                  
D. no trees and no plants
5. Small animals in and around wetlands are important because _________ .
A. they are part of the balance of nature and the food chain    
B. there may be no water without them
C. they are able to keep wetlands full of life
D. bigger animals are more dangerous
阅读理解。
     The leaders (***) of 13 countries had a big meeting in St Petersburg, Russia from November 21
to 24, 2010. The  meeting was  about  tigers. They  talked about the ways to protect the animals in their
countries. They agreed to spend more money protecting tigers and they wanted to double the number of
tigers in the world before 2022.
     Tiger is one of the world"s most endangered animals. The  World  Wildlife Fund (WWF) says, there
are only about 100,000 wild tigers now. And  the  number  is  becoming  smaller and smaller. "If nothing
happens, tigers will face disasters," said WWF spokeswoman Marie von Zeipel.
     Nine types of tigers lived 100 years ago, but now at least three of them have died out. "If people leave
tigers alone and don"t kill them, then the number of tigers will double in 10 years," said Jean
ChristophVie, a French tiger expert (专家).
      China is one of the 13 countries where tigers live. There are about 50 wild tigers in China now. They
are  the  Bengal  tigers in Tibet,  Indochinese   tigers  in  China"s  southwest,  and  Siberian  tigers  in  the
northeast. The  South  China  tigers  lived in southeast  China  many  years  ago but  disappeared  in  the
1970s. Many experts think they have already died out.
1. What"s the meeting in St Petersburg mainly about?
A. How to help tigers find a better place to live.
B. How to protect tigers in their countries.
C. How to stop people from hunting the wild animals.
D. How to count the number of tigers in the world.
2. Which of the following is TRUE according to the WWF?
A. Many tigers have died only because people hunt them.
B. About 3,200 tigers have died in the past 100 years.
C. There are more and more tigers these years.
D. There are about 100,000 wild tigers in the world now.
3.In Jean-Christoph Vie"s opinion, the best way to double the number of tigers in10 years is __________.
A. to do nothing                    
B. to keep all of them in the zoo
C. to stop people from killing them      
D. to build more nature reserves for tigers
4. How many types of tigers were there in China 50 years ago?
A. 3          
B. 4          
C. 13        
D. 50
5. The Chinese meaning of "die out" in the 3rd paragraph is ___.
A. 死亡      
B. 灭绝       
C. 变弱     
D. 死于