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You may hear about earthquakes,but do you know what to do before,during and after an earthquake? Here is some advice for you:
Before an earthquake It's necessary to prepare yourself and your family.All family members should know how to turn off gas,water and electricity and know useful telephone numbers(doctor,hospital,police,119,etc.).Never put heavy things over beds.
During an earthquake It's important for each of you to stay calm(冷静).If you are indoors,quickly move to a safe place in the room such as under a strong desk or a strong table.The purpose is to protect yourself from falling objects.Stay away from windows,large mirrors,heavy furniture and so on.If you are cooking,turn off the gas.
If you are outdoors,move to an open area like a playground.Move away from buildings,bridges and trees.If you are driving,stop the car as soon as possible,staying away from bridges and tall buildings.Stay in your car.
After an earthquake Once the shaking has stopped,DO NOT run out of the building at once.It's better to wait and leave when it is safe.
Check around you and help the people who are in trouble.If your building is badly broken you should leave it.If you smell or hear a gas,get everyone outside and open windows and doors.If you can do it safely,turn off the gas.Report it to the gas company.
1.Which of the following is mentioned in the second paragraph?
A.People should know how to turn on gas.
B.People should know how to save water.
C.People shouldn't put heavy boxes over beds.
D.People shouldn't forget the phone numbers of others.
2.When an earthquake happens, can help you deal with it.
A.standing still B.staying calm C.looking outside D.moving indoors
3.During an earthquake,if you are driving in an open area,you should .
A.speed up your car B.stop your car and stay in
C.slow down your car D.stop your car and run out
4.When the earth stops shaking,you should .
A.check around you first B.run out of the building at once
C.break the windows and doors D.write a report to your company
5.You can learn after reading the passage.
A.what an earthquake is like B.what to do to avoid an earthquake
C.how an earthquake happens D.how to protect yourself in an earthquake
查看习题详情和答案>>If you often feel tired and the doctor can’t find anything wrong with you, you may be in a state of subhealth(亚健康). Subhealth is a state between health and illness. Most of the subhealthy people are middle-aged ones who are usually stressed out because of work and family. And some of them are students who are having exams.
If you are subhealthy, it is not difficult for you to become well soon. You should have good living habits. For example, you should get up early and go to bed early. And you should exercise regularly(有规律地). Exercising can keep you healthy. As for meals, it is better to eat less salt and sugar. Vegetables, fruit and fish are important to your body. You should eat more of them. It is not good to eat too much at one meal, because it may cause unhealthy changes in the digestive tract(消化道). And at last, a balanced diet is very helpful in staying away from(远离)subhealth.
【小题1】How may you feel if you’re subhealthy?
A.Happy | B.Comfortable | C.Tired | D.Sad |
A.Teachers and students |
B.Parents and children |
C.Middle-aged people and students |
D.The young and the old |
A.Relax and have good living habits |
B.Go to see the doctor and ask for some medicine. |
C.Go to hospital in foreign countries. |
D.Stay at home and not talk to others |
A.you need to get up early and go to bed early. |
B.you should exercise very often |
C.you should eat less salt and sugar and eat more vegetables, fruit and fish |
D.All above(上边的) |
A. What is subhealth.
B. How to keep away from subhealth.
C How to keep subhealthy.
D. Why are you subhealthy? 查看习题详情和答案>>
Do you have a dictionary? I think almost everyone has one.But ,how often do you use a dictionary? I don't believe that everyone makes good use of it.You may come across lots of new words in your study and you will ask someone for the answers. But if you have a dictionary ,
please don't let it sleep.You should make better use of it .It can tell you not only the meaning of the words but also the use of them.What's more, it can tell you how to use them.
It is true that dictionaries are very useful and important to us.They are like silent teachers. When you have a question, you can turn to them.They will give you the right answer.They are also like a trusted friend and stay with you forever. You can learn a lot from them .
Don't be lazy. Don't let your dictionary sleep any more. You will find it is a new world if you walk to it.
【小题1】Does everyone make good use of the dictionary?
A.No,they aren't. | B.No,they don't. | C.Yes,they do. | D.I don't know. |
A.He will look them up in the dictionary. |
B.He will ask his parents. |
C.He will ask someone for the answers. |
D.I don't know. |
A. The meaning of the words. B. The use of the words.
C. How to use the words. D. A,B and C.
【小题4】What are dictionaries like according to the passage?
A.They are like silent teachers and trusted friends. | B.They are of medium height. |
C.They are very cute. | D.They are very beautiful. |
A.We should let the dictionary sleep. | B.Dictionaries are like our mothers. |
C.Dictionaries are very useful to us. | D.We can see the film in the dictionary. |
When you look up into the sky at night, have you ever felt that your eyes are playing tricks on (捉弄) you? It seems that the stars are moving all the time.
Actually, there is nothing wrong with your eyes. This twinkling effect is called scintillation (交光). Scintillation happens because of air movements in the earth’s atmosphere (大气). Light is “bent (弯曲的)” when it travels through different parts of the earth’s atmosphere. As the air in the earth’s atmosphere is moving all the time, the light from the stars looks as if it is moving too.
The same thing also happens to things on the ground. On a very hot and shiny day, if you look at the road, the image in the distance is not clear and things move slightly. You can also see the same effect if you drop a rock into water. The rock appears a little unclear under the moving water.
This twinkling effect causes a lot of problems for astronomers (天文学家) since they cannot observe the stars clearly. A telescope (望远镜) was sent into space so that the air movements in the atmosphere could be avoided (避免). It took a long time to build the space telescope but finally in 1990, a huge space telescope called the Hubble Space Telescope was successfully sent into space. Since then, astronomers have many important observations that have helped people understand space better.
根据短文内容,选择最佳选项。 (10分)
【小题1】What happens to the light from the stars we see when the air in the earth’s atmosphere is moving?
A.It looks even brighter. |
B.It looks as if it is bent. |
C.It looks as if it is moving. |
D.It looks like drops of rain. |
A.rainy days | B.shiny days |
C.cloudy days | D.windy days |
A.The rock gets broken. |
B.The rock becomes unclear. |
C.The water becomes much polluted. |
D.The water does not move anymore. |
A.watch | B.listen | C.draw | D.explain |
A.The stars never stay still. |
B.It makes the stars too dark to see. |
C.It makes astronomers feel too hot to work. |
D.Astronomers cannot observe the stars clearly. |
When you look up into the sky at night, have you ever felt that your eyes are playing tricks on (捉弄) you? It seems that the stars are moving all the time.
Actually, there is nothing wrong with your eyes. This twinkling effect is called scintillation (交光). Scintillation happens because of air movements in the earth’s atmosphere (大气). Light is “bent (弯曲的)” when it travels through different parts of the earth’s atmosphere. As the air in the earth’s atmosphere is moving all the time, the light from the stars looks as if it is moving too.
The same thing also happens to things on the ground. On a very hot and shiny day, if you look at the road, the image in the distance is not clear and things move slightly. You can also see the same effect if you drop a rock into water. The rock appears a little unclear under the moving water.
This twinkling effect causes a lot of problems for astronomers (天文学家) since they cannot observe the stars clearly. A telescope (望远镜) was sent into space so that the air movements in the atmosphere could be avoided (避免). It took a long time to build the space telescope but finally in 1990, a huge space telescope called the Hubble Space Telescope was successfully sent into space. Since then, astronomers have many important observations that have helped people understand space better.
根据短文内容,选择最佳选项。 (10分)
1.What happens to the light from the stars we see when the air in the earth’s atmosphere is moving?
A.It looks even brighter.
B.It looks as if it is bent.
C.It looks as if it is moving.
D.It looks like drops of rain.
2.Scintillation also happens on according to the passage.
A.rainy days B.shiny days
C.cloudy days D.windy days
3.What can you see when you drop a rock into the water?
A.The rock gets broken.
B.The rock becomes unclear.
C.The water becomes much polluted.
D.The water does not move anymore.
4.The underlined word “observe” means “ ”.
A.watch B.listen C.draw D.explain
5.Why is scintillation a problem for astronomers?
A.The stars never stay still.
B.It makes the stars too dark to see.
C.It makes astronomers feel too hot to work.
D.Astronomers cannot observe the stars clearly.
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