What problem do many Chinese cities haw according to this passage'? A. Increasing population. B. Air pollution. C. Limited resources. 查看更多

 

题目列表(包括答案和解析)

TOKYO, JAPAN--What do you do when you see a cockroach (蟑螂)? Do you hit it with a newspaper? Do you step on it?

When researchers at Tokyo University see a cockroach, they take the remote control and make the cockroach turn around, run left or right, or go forward. These scientists are changing the cockroaches into robots. Each cockroach has a very small pack that has in it a microprocessor(微处理器).Then researchers can send signals from the remote control to the pack. The signals control the movements of the cockroaches.

Why does anyone want to control a cockroach? “Insects can do many things that people can’t,” says Isao Shimoyama, head of robot research at Tokyo University. In a few years, he says, these robot insects will carry very small cameras. They will be able to move through earthquake rubble(瓦砾)to look for people or move under doors to find information about someone.

This may seem strange, but the Japanese government thinks the research is very important. The government is giving the scientists $ 5 million for this research.

First, the researchers breed (培育)hundreds of cockroaches. They use only the American cockroach because it is bigger and stronger than other cockroaches. Then they choose the best cockroaches and remove their wings and antennae(触须). They put small packs where the antennae were. The packs weigh about three grams, or about two times the weight of the cockroaches themselves. “Cockroaches are very strong,” says Ralph Holzer, who is a researcher at Tokyo University. “They can lift 20 times their own weight. ”

With a remote control, the scientists send signals to the packs. When a cockroach gets the signal, it moves. The problem is that the cockroaches don’t always move in the right direction.

1.The scientists are changing the cockroaches into robots because ______.

A.they want cockroaches to do things people can’t in the future

B.they want to control the movements of the cockroaches

C.they want cockroaches to take photos of the earthquakes

D.they want to send signals to the packs on the cockroaches

2.What can cockroaches do to help people?

A.They can lift 20 times their own weight.

B.They can help people to carry very small cameras.

C.They can breed hundreds of cockroaches.

D.They can search for those people in rubble after an earthquake.

3.Scientists control cockroaches’ movements ______.

A.by removing their wings

B.by sending signals from the remote control

C.by using very small cameras

D.by removing their antennae

4.What problem do the rcscarchcrs meet with?

A.The cockroachcs sometimes clon;t move.

B.The cockroachcs sometimes move in ihc wrong direction.

C.The cockroachcs arc too big to move through earthquake rubble.

D.The cockroachcs can only lift 20 times their own weight.

 

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TOKYO, JAPAN--What do you do when you see a cockroach (蟑螂)? Do you hit it with a newspaper? Do you step on it?
When researchers at Tokyo University see a cockroach, they take the remote control and make the cockroach turn around, run left or right, or go forward. These scientists are changing the cockroaches into robots. Each cockroach has a very small pack that has in it a microprocessor(微处理器).Then researchers can send signals from the remote control to the pack. The signals control the movements of the cockroaches.
Why does anyone want to control a cockroach? “Insects can do many things that people can’t,” says Isao Shimoyama, head of robot research at Tokyo University. In a few years, he says, these robot insects will carry very small cameras. They will be able to move through earthquake rubble(瓦砾)to look for people or move under doors to find information about someone.
This may seem strange, but the Japanese government thinks the research is very important. The government is giving the scientists $ 5 million for this research.
First, the researchers breed (培育)hundreds of cockroaches. They use only the American cockroach because it is bigger and stronger than other cockroaches. Then they choose the best cockroaches and remove their wings and antennae(触须). They put small packs where the antennae were. The packs weigh about three grams, or about two times the weight of the cockroaches themselves. “Cockroaches are very strong,” says Ralph Holzer, who is a researcher at Tokyo University. “They can lift 20 times their own weight. ”
With a remote control, the scientists send signals to the packs. When a cockroach gets the signal, it moves. The problem is that the cockroaches don’t always move in the right direction.
【小题1】The scientists are changing the cockroaches into robots because ______.

A.they want cockroaches to do things people can’t in the future
B.they want to control the movements of the cockroaches
C.they want cockroaches to take photos of the earthquakes
D.they want to send signals to the packs on the cockroaches
【小题2】What can cockroaches do to help people?
A.They can lift 20 times their own weight.
B.They can help people to carry very small cameras.
C.They can breed hundreds of cockroaches.
D.They can search for those people in rubble after an earthquake.
【小题3】Scientists control cockroaches’ movements ______.
A.by removing their wings
B.by sending signals from the remote control
C.by using very small cameras
D.by removing their antennae
【小题4】What problem do the rcscarchcrs meet with?
A.The cockroachcs sometimes clon;t move.
B.The cockroachcs sometimes move in ihc wrong direction.
C.The cockroachcs arc too big to move through earthquake rubble.
D.The cockroachcs can only lift 20 times their own weight.

查看答案和解析>>

TOKYO, JAPAN--What do you do when you see a cockroach (蟑螂)? Do you hit it with a newspaper? Do you step on it?
When researchers at Tokyo University see a cockroach, they take the remote control and make the cockroach turn around, run left or right, or go forward. These scientists are changing the cockroaches into robots. Each cockroach has a very small pack that has in it a microprocessor(微处理器).Then researchers can send signals from the remote control to the pack. The signals control the movements of the cockroaches.
Why does anyone want to control a cockroach? “Insects can do many things that people can’t,” says Isao Shimoyama, head of robot research at Tokyo University. In a few years, he says, these robot insects will carry very small cameras. They will be able to move through earthquake rubble(瓦砾)to look for people or move under doors to find information about someone.
This may seem strange, but the Japanese government thinks the research is very important. The government is giving the scientists $ 5 million for this research.
First, the researchers breed (培育)hundreds of cockroaches. They use only the American cockroach because it is bigger and stronger than other cockroaches. Then they choose the best cockroaches and remove their wings and antennae(触须). They put small packs where the antennae were. The packs weigh about three grams, or about two times the weight of the cockroaches themselves. “Cockroaches are very strong,” says Ralph Holzer, who is a researcher at Tokyo University. “They can lift 20 times their own weight. ”
With a remote control, the scientists send signals to the packs. When a cockroach gets the signal, it moves. The problem is that the cockroaches don’t always move in the right direction.

  1. 1.

    The scientists are changing the cockroaches into robots because ______.

    1. A.
      they want cockroaches to do things people can’t in the future
    2. B.
      they want to control the movements of the cockroaches
    3. C.
      they want cockroaches to take photos of the earthquakes
    4. D.
      they want to send signals to the packs on the cockroaches
  2. 2.

    What can cockroaches do to help people?

    1. A.
      They can lift 20 times their own weight.
    2. B.
      They can help people to carry very small cameras.
    3. C.
      They can breed hundreds of cockroaches.
    4. D.
      They can search for those people in rubble after an earthquake.
  3. 3.

    Scientists control cockroaches’ movements ______.

    1. A.
      by removing their wings
    2. B.
      by sending signals from the remote control
    3. C.
      by using very small cameras
    4. D.
      by removing their antennae
  4. 4.

    What problem do the rcscarchcrs meet with?

    1. A.
      The cockroachcs sometimes clon;t move.
    2. B.
      The cockroachcs sometimes move in ihc wrong direction.
    3. C.
      The cockroachcs arc too big to move through earthquake rubble.
    4. D.
      The cockroachcs can only lift 20 times their own weight.

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阅读理解。
     Up to 65% of children don't get as much sleep as they should do, and this can make them nervous
and slower at school, scientists say.
     So how long should young people sleep each night? The answer is between eight and ten hours. If
you don't get enough sleep at night, you'll have less energy the next day.
     But the scientists say many children have missed out on 4,500 hours of sleep by the time they are
seven years old. They say that children miss sleep because they have TVs and computers in their rooms,
and busy parents don't read to their younger children at night any more. The traditional "bedtime story"
helps children to relax and fall asleep peacefully. Children with TVs and computers in their bedrooms
were more likely to sleep badly, and to get less than eight hours' sleep. Even losing one hour's sleep a
night can mean that children do less well at school.
    German scientists think that your brain (大脑) keeps working while you are asleep. To show that
they were right, they gave two groups of people a problem to work out. One group went to sleep, and
the other group stayed awake. The result? The people who slept worked out the answer more quickly.
This showed that their brains had been trying to find the answer while the people were asleep. So,
make sure you get enough sleep tonight, and you'll be at your best tonight , and you'll be at your best
tomorrow!
1. What problem do more than a half of students have?
A. They don't get on well with their studies.  
B. They don't  have enough sleep at night.
C. They don't relax themselves at school.    
D. They don't follow their school rules
2. If you have less energy the next day, you'll probably feel _______.
A. sleepy, slow and nervous            
B. tried, bored and worried
C. afraid, alone and angry              
D. dull, lazy and crazy
3. According to the third paragraph, what has worst influenced many children's sleep?
A. Their parents' noise.                  
B. Bedtime stories.  
C. Too much homework                  
D. TV and computers
4. The German scientists' experiment showed that _______.
A. our study depends on our sleep          
B. our sleep helps improve our health
C. our brain works while we sleep          
D. our brain works faster during sleep
5. This passage in mainly written for _______.
A. parents      
B. school teachers      
C. scientists    
D. young students

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阅读理解
       TOKYO,  JAPAN--What do you do when you see a cockroach (蟑螂)?  Do you hit it with a
newspaper? Do you step on it?
       When researchers at Tokyo University see a cockroach,  they take the remote control and make
the cockroach turn around, run left or right, or go forward. These scientists are changing the cockroaches
into robots. Each cockroach has a very small pack that has in it a microprocessor(微处理器).Then
researchers can send signals from the remote control to the pack. The signals control the movements
of the cockroaches.
       Why does anyone want to control a cockroach? "Insects can domany things that people can't," says
Isao Shimoyama, head of robot research at Tokyo University. In a few years, he says, these robot insects will carry very small cameras. They will be able to move through earthquake rubble(瓦砾)to look for
people or move under doors to find information about someone.
       This may seem strange, but the Japanese government thinks the research is very important. The
government is giving the scientists $ 5 million for this research.
       First, the researchers breed (培育)hundreds of cockroaches. They use only the American cockroach because it is bigger and stronger than other cockroaches. Then they choose the best cockroaches and
remove their wings and antennae(触须). They put small packs where the antennae were. The packs weigh about three grams, or about two times the weight of the cockroaches themselves. "Cockroaches are very
strong," says Ralph Holzer, who is a researcher at Tokyo University. "They can lift 20 times their own
weight. "
       With a remote control, the scientists send signals to the packs. When a cockroach gets the signal, it
moves. The problem is that the cockroaches don71 always move in the right direction.
1. The scientists are changing the cockroaches into robots because ______.
A. they want cockroaches to do things people can't in the future
B. they want to control the movements of the cockroaches
C. they want cockroaches to take photos of the earthquakes
D. they want to send signals to the packs on the cockroaches
2. What can cockroaches do to help people?
A. They can lift 20 times their own weight.
B. They can help people to carry very small cameras.
C. They can breed hundreds of cockroaches.
D. They can search for those people in rubble after an earthquake.
3. Scientists control cockroaches' movements ______.
A.by removing their wings      
B. by sending signals from the remote control
C. by using very small cameras
D. by removing their antennae
4. What problem do the rcscarchcrs meet with?
A. The cockroachcs sometimes clon;t move.
B. The cockroachcs sometimes move in ihc wrong direction.
C. The cockroachcs arc too big to move through earthquake rubble.
D. The cockroachcs can only lift 20 times their own weight.

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