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dad,must we wait until the light答案解析

科目:czyy 来源:2013-2014学年江苏省兴化市九年级上学期期末考试英语试卷(解析版) 题型:单项填空

— Dad, must we wait until the light becomes green?

   — Yes, I’m afraid we ______. That’s the traffic rule.

A. can                         B. may              C. have to         D. need

 

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科目:czyy 来源:2013年初中毕业升学考试(河南卷)英语(解析版) 题型:单项填空

---Dad, must we wait until the light becomes green?

---Yes, I’m afraid we ______. That’s the traffic rule.

A.can              B.may              C.have to           D.need

 

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科目:czyy 来源:2013年河南市高级中等学校招生考试英语 题型:017

Dad, must we wait until the light becomes green?

Yes, I'm afraid we ________That's the traffic rule

[  ]

A.can

B.may

C.have to

D.need

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科目:czyy 来源: 题型:单选题

---Dad, must we wait until the light becomes green?
---Yes, I’m afraid we ______. That’s the traffic rule.


  1. A.
    can
  2. B.
    may
  3. C.
    have to
  4. D.
    need

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科目:czyy 来源:2013年初中毕业升学考试(河南卷)英语(带解析) 题型:单选题

---Dad, must we wait until the light becomes green?
---Yes, I’m afraid we ______. That’s the traffic rule.

A.canB.mayC.have toD.need

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科目:czyy 来源:2013届江苏省大丰市第四中学九年级12月月考英语试卷(带解析) 题型:阅读理解

Very few people enjoy exams. I don’t, either. And although I tell myself not to worry about them, I always do! So I’m not surprised that my students worry about them, too, even though they usually don’t need to. Because they are afraid of failing. However, since it is hard not to worry at all, we all must try not to worry too much. Why? Because worrying makes exams worse! How to do this?
Ask the teacher about how to revise and about exam skills—how to work when you are in the exam. Good students don’t wait until the week before an exam. They study all through the year. It is not possible to learn everything at the last minute. So don’t leave it till then.
If you start planning and working for each exam early and you make sure that you understand what you’re studying, then, when it is over, you’ll be able to say, “What a good exam that was!”
Take a short rest during your time of work and revision. If your mind is tired, it won’t remember well. Work at the time when you know you’ll work at your best.
If you’re studying in the evening, don’t go straight to bed afterwards. Your mind will still be “going round and round”—thinking too much. Do something else, maybe walk or get exercise. Choose something that will relax you, and make you think of other things.
If you feel bad, talk to someone about your worries. But don’t be too relaxed! Some stress over exams makes you work hard for them.
【小题1】How does the writer feel about exams?

A.Excited.B.Bored.C.Worried.D.Surprised.
【小题2】Why are the students afraid of exams?
A.Because they are afraid of failing.
B.Because they want to get full marks.
C.Because exams are usually hard.
D.Because their teachers will be angry at their bad grades.
【小题3】Which is NOT mentioned in the passage?
A.Good students don’t wait until the week before an exam.
B.Start planning and working for each exam early.
C.If you don’t know how to work for an exam, ask the teacher about it.
D.You should sleep well before the exam.
【小题4】According to the passage, if you feel bad, you’d better _____.
A.take a short rest
B.tell someone about your worries
C.walk or get exercise
D.keep busy working and forget your worries

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科目:czyy 来源:2011-2012学年福建省泉州市德化县初一下学期质量监控英语试卷(带解析) 题型:阅读理解

This is a street crossing. There are red and green lights at each corner. Drivers must watch the lights carefully.
When there is a green light, the cars may go. When there is a red light, the cars must stop. They must wait until the red light changes to green. Then they can go on. Sometimes the cars want to make a right turn or a left turn. They can make a right turn when the light is green or red. But they must wait until the green light is shining if they want to turn left.
Some people are color-blind(色盲). They can not tell the difference(不同) between the red and green lights. These people must not drive, or there will be accidents. We must keep our streets safe.
【小题1】Drivers must watch _____ carefully at each corner.
A.green lights         B.red lights            C.both green lights and red lights
【小题2】When there is a red light _____ .
A.the cars must stop                B.the cars may go on      C.the cars may make a left turn
【小题3】Cars can make a right turn when _____ .
A.there is a red light              B.there is a green light     C.there is a red or green light
【小题4】Color-blind people may have accidents because _____ .
A.they can’t see cars
B.they can’t see the lights
C.they can’t tell the difference between the red and green lights
【小题5】According to (根据) the passage _____ must not drive.
A.young people     B. color-blind people             C.old men

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科目:czyy 来源:2011-2012学年安徽省安庆市十中九年级上学期期中考英语试卷(解析版) 题型:阅读理解

Making friend is a skill. Like most skills, it improves with practice. If you want to meet people and make friends, you must be willing(乐意) to take some action. You must first go where there are people. You won’t make friends staying home alone.

Join a club or group, talking with those who like the same things you do is much easier. Or join someone in some activity. Many people are nervous when talking to new people. After all, meeting strangers means facing the unknown. And it’s human nature to feel a bit uncomfortable about the unknown.

Most of our fears about dealing with new people come from doubts about ourselves. We imagine other people are giving an opinion about us-finding us too tall or too short, too this or too that. But don’t forget that they must be feeling the same away. Try to accept(接受)yourself as you are, and try to put the other person at ease(不拘束). You’ll both feel more comfortable.

Try to keep self-confident(自信)even when you don’t feel that way when you enter a room full of strangers, such as a new classroom, walk tall(趾高气扬)and straight, look directly at other people and smile. If you see someone you’d like to speak to, say something. Don’t wait for the other person to start a conversation.

Just meeting someone new does not mean that you will make friends with that person-friendship is based on each other’s liking and “give and take”. They take time and efforts to develop. And there are things that keep a new friendship from growing.

1.If you want to meet people and make friends, what should you do?

A. Join a club or group.      B. Talk with those who like the same things.

C. Join someone in some activity.      D. All of the above(上面)

2.In the sentence “After all, meeting strangers means facing the unknown.”, the word “unknown” means _____.

A. without somebody knowing      B. without somebody liking

C. unfriendly                    D. unpleasant

3.How do you feel more comfortable when you are with new people?

A. Shake hands with others        

B. Accept yourself as you are, and put the other as ease

C. Don’t talk with those who don’t like.

D. Walk tall and straight.

4.If you’d like to speak to someone, what should you do?

A. You should wait until the person says something.   

B. You should stay home alone.

C. You should cough until the person notices you.     

D. You should say something at first.

5.Friendship is based on______

A. meeting for the first time      B. each other’s liking and “give and take”

C. keeping self-confident          D. facing the unknown

 

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科目:czyy 来源:2013届安徽省芜湖市七校九年级上学期第一次联考英语试卷(带解析) 题型:阅读理解

Making friend is a skill. Like most skills, it improves with practice. If you want to meet people and make friends, you must be willing(乐意) to take some action. You must first go where there are people. You won’t make friends staying home alone.
Join a club or group, talking with those who like the same things you do is much easier. Or join someone in some activity.
Many people are nervous when talking to new people. After all, meeting strangers means facing the unknown. And it’s human nature to feel a bit uncomfortable about the unknown.
Most of our fears about dealing with new people come from doubts about ourselves. We imagine other people are giving an opinion about us-finding us too tall or too short, too this or too that. But don’t forget that they must be feeling the same away. Try to accept(接受)yourself as you are, and try to put the other person at ease(不拘束). You’ll both feel more comfortable.
Try to keep self-confident(自信)even when you don’t feel that way when you enter a room full of strangers, such as a new classroom, walk tall(趾高气扬)and straight, look directly at other people and smile.
If you see someone you’d like to speak to, say something. Don’t wait for the other person to start a conversation.
Just meeting someone new does not mean that you will make friends with that person-friendship is based on each other’s liking and “give and take”. They take time and efforts to develop. And there are things that keep a new friendship from growing.
【小题1】If you want to meet people and make friends, what should you do?

A.Join a club or group.
B.Talk with those who like the same things.
C.Join someone in some activity.
D.All of the above(上面)
【小题2】In the sentence “After all, meeting strangers means facing the unknown.”, the word “unknown” means _____.
A.without somebody knowing
B.without somebody liking
C.unfriendly
D.unpleasant
【小题3】How do you feel more comfortable when you are with new people?
A.Shake hands with others
B.Accept yourself as you are, and put the other as ease
C.Don’t talk with those who don’t like.
D.Walk tall and straight.
【小题4】If you’d like to speak to someone, what should you do?
A.You should wait until the person says something.
B.You should stay home alone.
C.You should cough until the person notices you.
D.You should say something at first.
【小题5】Friendship is based on______
A.meeting for the first time
B.each other’s liking and “give and take”
C.keeping self-confident
D.facing the unknown

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科目:czyy 来源: 题型:

This is a street crossing. There are red and green lights at each corner. Drivers must watch the lights carefully.
When there is a green light, the cars may go. When there is a red light, the cars must stop. They must wait until the red light changes to green. Then they can go on. Sometimes the cars want to make a right turn or a left turn. They can make a right turn when the light is green or red. But they must wait until the green light is shining if they want to turn left.
Some people are color-blind(色盲). They can not tell the difference(不同) between the red and green lights. These people must not drive, or there will be accidents. We must keep our streets safe.
【小题1】Drivers must watch _____ carefully at each corner.
A.green lights         B.red lights            C.both green lights and red lights
【小题2】When there is a red light _____ .
A.the cars must stop                B.the cars may go on      C.the cars may make a left turn
【小题3】Cars can make a right turn when _____ .
A.there is a red light              B.there is a green light     C.there is a red or green light
【小题4】Color-blind people may have accidents because _____ .
A.they can’t see cars
B.they can’t see the lights
C.they can’t tell the difference between the red and green lights
【小题5】According to (根据) the passage _____ must not drive.
A.young people     B. color-blind people             C.old men

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科目:czyy 来源:2012届安徽省安庆市十校九年级上学期期中联考英语试卷(带解析) 题型:阅读理解

Making friend is a skill. Like most skills, it improves with practice. If you want to meet people and make friends, you must be willing(乐意) to take some action. You must first go where there are people. You won’t make friends staying home alone.
Join a club or group, talking with those who like the same things you do is much easier. Or join someone in some activity. Many people are nervous when talking to new people. After all, meeting strangers means facing the unknown. And it’s human nature to feel a bit uncomfortable about the unknown.
Most of our fears about dealing with new people come from doubts about ourselves. We imagine other people are giving an opinion about us-finding us too tall or too short, too this or too that. But don’t forget that they must be feeling the same away. Try to accept(接受)yourself as you are, and try to put the other person at ease(不拘束). You’ll both feel more comfortable.
Try to keep self-confident(自信)even when you don’t feel that way when you enter a room full of strangers, such as a new classroom, walk tall(趾高气扬)and straight, look directly at other people and smile. If you see someone you’d like to speak to, say something. Don’t wait for the other person to start a conversation.
Just meeting someone new does not mean that you will make friends with that person-friendship is based on each other’s liking and “give and take”. They take time and efforts to develop. And there are things that keep a new friendship from growing.
【小题1】If you want to meet people and make friends, what should you do?

A.Join a club or group.B.Talk with those who like the same things.
C.Join someone in some activity.D.All of the above(上面)
【小题2】In the sentence “After all, meeting strangers means facing the unknown.”, the word “unknown” means _____.
A.without somebody knowingB.without somebody liking
C.unfriendlyD.unpleasant
【小题3】How do you feel more comfortable when you are with new people?
A.Shake hands with others
B.Accept yourself as you are, and put the other as ease
C.Don’t talk with those who don’t like.
D.Walk tall and straight.
【小题4】If you’d like to speak to someone, what should you do?
A.You should wait until the person says something.
B.You should stay home alone.
C.You should cough until the person notices you.
D.You should say something at first.
【小题5】Friendship is based on______
A.meeting for the first timeB.each other’s liking and “give and take”
C.keeping self-confidentD.facing the unknown

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科目:czyy 来源:2012-2013学年安徽省芜湖市七中九年级上学期第一次考英语试卷(解析版) 题型:阅读理解

Making friend is a skill. Like most skills, it improves with practice. If you want to meet people and make friends, you must be willing(乐意) to take some action. You must first go where there are people. You won’t make friends staying home alone.

Join a club or group, talking with those who like the same things you do is much easier. Or join someone in some activity.

Many people are nervous when talking to new people. After all, meeting strangers means facing the unknown. And it’s human nature to feel a bit uncomfortable about the unknown.

Most of our fears about dealing with new people come from doubts about ourselves. We imagine other people are giving an opinion about us-finding us too tall or too short, too this or too that. But don’t forget that they must be feeling the same away. Try to accept(接受)yourself as you are, and try to put the other person at ease(不拘束). You’ll both feel more comfortable.

Try to keep self-confident(自信)even when you don’t feel that way when you enter a room full of strangers, such as a new classroom, walk tall(趾高气扬)and straight, look directly at other people and smile.

If you see someone you’d like to speak to, say something. Don’t wait for the other person to start a conversation.

Just meeting someone new does not mean that you will make friends with that person-friendship is based on each other’s liking and “give and take”. They take time and efforts to develop. And there are things that keep a new friendship from growing.

1.If you want to meet people and make friends, what should you do?

   A. Join a club or group.      B. Talk with those who like the same things.

   C. Join someone in some activity.      D. All of the above(上面)

2.In the sentence “After all, meeting strangers means facing the unknown.”, the word “unknown” means _____.

   A. without somebody knowing      B. without somebody liking

   C. unfriendly                    D. unpleasant

3.How do you feel more comfortable when you are with new people?

A. Shake hands with others

B. Accept yourself as you are, and put the other as ease

   C. Don’t talk with those who don’t like.

D. Walk tall and straight.

4.If you’d like to speak to someone, what should you do?

    A. You should wait until the person says something.

  B. You should stay home alone.

    C. You should cough until the person notices you.

 D. You should say something at first.

5.Friendship is based on______

    A. meeting for the first time    B. each other’s liking and “give and take”

    C. keeping self-confident      D. facing the unknown

 

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科目:czyy 来源:2012-2013学年江苏省大丰市九年级12月月考英语试卷(解析版) 题型:阅读理解

Very few people enjoy exams. I don’t, either. And although I tell myself not to worry about them, I always do! So I’m not surprised that my students worry about them, too, even though they usually don’t need to. Because they are afraid of failing. However, since it is hard not to worry at all, we all must try not to worry too much. Why? Because worrying makes exams worse! How to do this?

Ask the teacher about how to revise and about exam skills—how to work when you are in the exam. Good students don’t wait until the week before an exam. They study all through the year. It is not possible to learn everything at the last minute. So don’t leave it till then.

If you start planning and working for each exam early and you make sure that you understand what you’re studying, then, when it is over, you’ll be able to say, “What a good exam that was!”

Take a short rest during your time of work and revision. If your mind is tired, it won’t remember well. Work at the time when you know you’ll work at your best.

If you’re studying in the evening, don’t go straight to bed afterwards. Your mind will still be “going round and round”—thinking too much. Do something else, maybe walk or get exercise. Choose something that will relax you, and make you think of other things.

If you feel bad, talk to someone about your worries. But don’t be too relaxed! Some stress over exams makes you work hard for them.

1.How does the writer feel about exams?

A.Excited.           B.Bored.            C.Worried.          D.Surprised.

2.Why are the students afraid of exams?

A.Because they are afraid of failing.

B.Because they want to get full marks.

C.Because exams are usually hard.

D.Because their teachers will be angry at their bad grades.

3.Which is NOT mentioned in the passage?

A.Good students don’t wait until the week before an exam.

B.Start planning and working for each exam early.

C.If you don’t know how to work for an exam, ask the teacher about it.

D.You should sleep well before the exam.

4.According to the passage, if you feel bad, you’d better _____.

A.take a short rest

B.tell someone about your worries

C.walk or get exercise

D.keep busy working and forget your worries

 

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科目:czyy 来源: 题型:050

  Many people have to do their own things every day. Some of them ride bikes and some of them drive cars, so streets look very busy.

  This is a street crossing. There are red and green lights at each corner. Drivers must watch the lights carefully. When there is a green light, the cars may go on. When there is a red light, the cars must stop. They must wait until the light changes to green. Then they can go. Sometimes the cars want to make a right turn or a left turn. They can make a right turn when the light is green or red. But they must wait until the green light is shining if they want to turn left.

  But some people are color-blind(色盲). They can't tell the difference between red and green. These people must not drive. We must keep our streets safe.

(1) The streets look busy because ________.

[  ]

A.there are so many people and cars or bikes

B.the streets are not wide enough

C.many people like traveling

D.the streets are fewer than before

(2) Drivers must see ________ clearly at a corner of the street crossing.

[  ]

A.the people and bikes

B.the old and young people

C.the green light and the red light

D.the students who are going to school

(3) Cars can't go ________.

[  ]

A.when the green light shows
B.when the red light shows
C.when there is no light
D.when the light changes

(4) A car can turn right when ________.

[  ]

A.there is a green or red light

B.there is only a green light

C.there is only a red light

D.there is no way

(5) If someone is a color-blind, he ________.

[  ]

A.can drive cars
B.can see the green color clearly
C.can't go to streets
D.can't be a driver

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科目:czyy 来源:题网八年级上英语人教 题型:026

根据短文内容及首字母提示填写所缺单词

  This is a street crossing(十字路口).There are red and g  1   lights at each corner(交叉路口).Drivers must watch the light c  2  

  When there is a green light, the cars may go on.When there is a red light,the cars must s  3  .They must wait u  4   the red light changes to green.Then they can go on.Sometimes the cars want to make a right t  5   or a left turn.They can make a r  6   turn when the light is green or red.But they must wait until the green light is shining if they want to turn l  7  

  Some people are color blind(色盲).They cannot see the d  8   between red and green.These people must not d  9  , or else there will be accidents(事故).We must keep our streets s  10  

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科目:czyy 来源:江苏省江阴市暨阳中学2011-2012学年八年级下学期期中检测英语试题 题型:050

阅读理解

阅读下面的短文,然后根据短文内容选择最佳答案。

  Very few people enjoy exams.I don't , either.And although I tell myself not to worry about them, I always do! So I am not surprised that my students worry about them, too , even though they usually don't need to.Because they are afraid of failing.However, since it is hard not to worry at all, we all must try not to worry too much.Why? Because worrying makes exams worse ! How to do this ?

  Ask the teacher about how to revise and about exam skills---- how to work when you are in the exam.

  Good students don't wait until the week before an exam.They study all through the year.It is not possible to learn everything at the last minutes.So don't leave it till then!

  If you start planning and working for each exam early and you make sure that you understand what you are studying , then, when it is over, you'll be able to say, ‘What a good exam that was!”

  Take a short rest during your time of work and revision.If your mind is tired, it will not remember well.Work at the time when you know you will work at your best.

  If you are studying in the evening, don't go straight to bed afterwards.Your mind will still be “going round and round”----thinking that will relax you, and make you think of other things.

  If you feel bad, talk to someone about your worries.But don't be too relaxed! Some stress over exams makes you work hard for them.

(1)

Why are the students afraid of exams?

[  ]

A.

Because they are afraid of failing.

B.

Because they want to get full marks.

C.

Because exams are usually hard.

D.

Because they think their teachers will be angry with them if they can't pass the exams.

(2)

Which is NOT mentioned in the passage?

[  ]

A.

Good students don't wait until the week before an exam.

B.

Start planning and working for each exam early

C.

If you don't know how to work for an exam, ask the teacher about it.

D.

You shouldn't sleep well before the exam.

(3)

According to the passage, if you feel bad, you'd better________.

[  ]

A.

take a short rest

B.

tell someone about your worries

C.

walk or get exercise

D.

keep busy working and forget your worries

(4)

The writer of the passage is probably a ________.

[  ]

A.

student

B.

teacher

C.

reporter

D.

scientist

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科目:czyy 来源:黄冈重点作业·初二英语(下) 题型:050

阅读理解

  This is a street crossing. There are red and green lights at each corner. Drivers must watch the lights carefully. When there is green light, the cars may go on. When there is a red light, the cars must stop. They must wait until the red light changes to green. Then they can go on. Sometimes the cars want to make a right turn or a left turn. They can make a right turn when the light is green or red. But they must wait until the green light is shining if they want to turn left.

  Some people are colour-blind. They can not see the different between red and green. These people must not drive or there will be an accident. We must keep our streets safe.

1.Drivers must pay attention to ________ at each corner of the street crossing.

[  ]

A.the red light
B.the green light
C.all kinds of lights
D.the red and the green lights

2.No one should drive on when ________.

[  ]

A.the green light shows
B.the red light shows
C.there is a light
D.the light changes

3.A car can turn right when there is ________.

[  ]

A.either a green light or a red one

B.a green light but not a red one

C.not only a green light but also a red one

D.no green light or red one

4.A car can not make a left turn ________ the green light shines.

[  ]

A.when
B.because
C.if
D.until

5.Something may happen to a colour-blind man if he ________.

[  ]

A.arrives
B.walks
C.runs
D.drives

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科目:czyy 来源:101网校同步练习 初一英语 人教社(新课标2002/3年通过) 人教社(新课标2002/3年通过) 题型:050

  This is a street crossing.There are red and green lights at each corner.Drivers must watch the lights carefully.

  When there is a green light, the cars may go on.When there is a red light, the cars must stop.They must wait until the red light changes(变)to green.Then they can go on.Sometimes the cars want to make a right turn or a left turn.They can make a right turn when the light is green or red.But they must wait until the green light is shining(闪亮)if they want to turn left.

  Some people are colour-blind(色盲).They can not see the difference between red and green.These people must not drive, or else there will be an accident(事故).We must keep our streets safe.

根据短文内容选择正确答案。

(1)

Drivers must pay attention to(注意)________ at each corner of the street crossing.

[  ]

A.

the red light

B.

the green light

C.

all kinds of lights

D.

the red and green lights

(2)

No one should drive on when ________.

[  ]

A.

the green light shines

B.

the red light shines

C.

there is a light

D.

the light changes

(3)

A car can turn right when there is ________.

[  ]

A.

either a green light or a red one

B.

not only a green light but also a red one

C.

a green light and not a red one

D.

no green light or red one

(4)

A car can’t make a left turn ________ the green light shines.

[  ]

A.

when

B.

because

C.

if

D.

until(直到)

(5)

Something may happen to a colour-blind man if he ________.

[  ]

A.

arrives

B.

walks

C.

drives

D.

runs

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科目:czyy 来源:同步题 题型:阅读理解

阅读下面短文,请从方框中选出适当的句子填入文中的适当位置,使短文内容完整正确。

       This is a street crossing.  1   Drivers must watch the lights carefully.
          2    When there is a red light, the cars going straight must stop. They must wait until the red light
changes to green.  3   Sometimes the cars want to make a right turn or a left turn. They can make a right
turn when the light is green or red.  But they must wait until the green light is shining if they want to turn left.
         4   They can't see the difference between red and green. These people must not drive, or else there will be accidents.  5   
We must keep our streets safe.
There are red and gree,n lights at each corner.
Then they can go on.
When there is a green light, the cars may go on.
Some people are color-blind(色盲).

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科目:czyy 来源: 题型:阅读理解

 (A)There was ice on the road, and the doctor’s car hit a tree and turned over three times.To his surrise,he wasn’t hurt.He got out of the car and walked to the nearest house.he wanted to telephone the garage for help.AA woman,one of his patients,opened the door.”Oh,doctor,”she said,”I have only just telephoned you.You must have a very fast car.You hae got here very quickly,there was a very bad accident on the road outside.I saw it through the window.I’m sure the driver will need your help.”

判断正误(写T或F)

(  )1.The doctor was driving t the garage before the accident.

(  )2.A tree fell across te road,so the traffic accident happened.

(  )3.The doctor knew one of his patients lived in the nearest house.

(  )4. The patient phoned the doctor because she thought someone needed help.

(  )5. The woman wanted the doctor,but was surprised that he came so quickly.

(B) This is a street crossing. There are red and green lights at each corner. Drivers must watch he lights carefully.When there is a green light, the cars may go. When there is a red light, the cars must stop. Drivers must wait until the red light changes to green. Then they can go. Sometimes drivers want to make a right turn or a left turn. They can make a right turn when the light is green or red. But they must wait until the green light is shining if they want to turn left.Some people are colour-blind. They can’t see the difference between red and green. These people must not drive, or else there will be accidents. We must keep our streets safe.

(  )6.Drivers must watch __carefully at each corner.

A.           Green lights     B. red lights    C. the policeman     D. both A and B

(   )7.When there is a red light, ___________.

A.           the cars must stop                   B. the cars may go

C. the cars may make a left turn           D. the cars can’t stop

(  )8. The cars can make a left turn when _______________.

A.           There is a red light           B. There is a green light

C. There is a red or green light         D. There is a yellow light

(  )9.The colour-blind people must not drive because____________.

they are blind    B. they can’t tell the difference between red and green.

A.           C.they can’t hear anything       D. they can’t see the lights.

(  )10.According to the passage, we can know ____________.

A.              where there is a street crossing, there are traffic lights

B. the colour-blind people caused(引起) all the traffic accidents

C.if drivers always watch the traffic lights carefully, there will be fewer accidents

D. people who wear glasses cannot drive cars.

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