As you see, the number of cars on the roads _...

As you see, the number of cars on the roads _____ these days.

A. keeps rising B. keep rising C. keep to rise

九年级英语单项填空中等难度题查看答案及解析

Don’t be too surprised if you see a car going down the road without a driver in Beijing these days. It might be one of Baidu’s self-driving cars.

Self-driving cars have been in development since 2010, when Google announced that it was making such cars. Since then,companies like Tesla, Uber and Baidu have been working to produce and test their own self-driving cars.

Self-driving cars are expected to change the way we get around. They are safer and more environmentally friendly than usual cars. They can remove the stress of driving and allow disabled or blind people to get around more easily.

But self-driving cars have their own flaws (缺陷)as well. In one test, researchers pointed a laser pointer (激光棒)at the car’s sensors (传感器)while it was moving. The car mistakenly thought that the laser beam(激光束）was in its way and slowed down or changed direction. Flaws like this could be used by people to trick self-driving cars.

The software (软件)that is used to direct the cars may not be safe enough. It may crash (崩溃),When we use our computers or smart phones, they sometimes crash without any reason. But if this happened to a self-driving car, the results could be deadly. Improvements to the software could be a way to deal with this problem.

Anyway, whether you like it or not, it’s only a matter of time before they’ll become more affordable and popular on our roads.

1.　　　　　　　 was the first company to develop self-driving cars?

A. Google. B. Telsa C. Uber. D. Baidu.

2.What does Paragraph 3 mainly talk about?

A. Solutions for disabled people. B. Tips for riding in self-driving cars.

C. Reasons for testing self-driving cars. D. Advantages of self-driving cars.

3.When sensing an obstacle(障碍物）in the road，self-driving cars will　　　　 .

A. attack it with a laser pointer B. slow down or change direction

C. crash into it to get past it D. stop and move around it

4.Which of the following statements is WRONG according to the passage?

A. Self-driving cars free people from the stress of driving.

B. Self-driving cars can reduce traffic accidents.

C. Researchers have solved the problems self-driving cars have.

D. The software of the self-driving cars needs improvements.

5.What’s the writer’s opinion about the self-driving cars?

A. They are more dangerous. B. They’ll be well developed in the future.

C. They cause more pollution. D. They’ll be more expensive in the future.

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Don’t be surprised if you see a car going down the road without a driver in Beijing these days.In March, 2018, baidu was given a license to test its self-driving cars in Beijing, China Daily reported.

Self-driving cars have been in development since 2010, when google announced that it was making such cars. Since then, companies like Tesla, Uber and Baidu have been working to produce and test their own self-driving cars.

self-driving cars are expected to change the way we get around. They are safer and more environmentally friendly than regular cars. They can remove the stress(压力) of driving and allow disabled or blind people to get around mroe easily.

But self-driving cars have their own disadvantages as well. In one test, researchers pointed a laser pointer（激光棒） at the car’s sensors（感应器） while it was moving. The car mistakenly thought that the laser beam（波束） was in its way and slowed down or changed directions.

The software(软件) that is used to direct the cars may not be safe enough. Reported Live science. Sometimes, without any reasons,it may break down when we use our computers or smartphones. If the software in a self-driving car happened to crash. The results could be deadly.Maybe improvements to the software could solve this problem.

1.when did Baidu get a testing license of its self-driving cars in Beijing

A. In february, 2018　　 B. in march,2018　　 C. in april,2018　　 D. in may, 2018

2.which company has firstly developed self-driving cars since 2010.

A. Google　　 B. tesla　　 C. Uber　　 D. baidu.

3.the moving car may _____. if a laser beam is in its way.

A. Stop itself　　 B. hit others　　 C. slow down　　 D. move on

4.the underlined word “crash” in paragraph 5 probably means___.

A. 奔溃　　 B. 碰撞　　 C. 暴跌　　 D. 坠毁

5.this passage may come from ____

A. A story book　　 B. a travel guide

C. a sports newspaper　　 D. a science magazine.

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----______number of cars on the roads is growing too fast.

----I agree with you. ______ number of problems have appeared already.

A. A, A　　　　 B. The , The　　 C. The ,a　　 D. A, the

九年级英语单项填空中等难度题查看答案及解析

----______number of cars on the roads is growing too fast.

----I agree with you,and ______ number of problems have appeared already.

A. A, A　　　　　　　　 B. The , The　　　　　 C. The ,a　　　　　　 D. A, the

九年级英语单项填空中等难度题查看答案及解析

----______number of cars on the roads is growing too fast.

----I agree with you. ______ number of problems have appeared already.

A. A, A　　　　　　　　 B. The , The

C. The ,a　　　　　　 D. A, the

九年级英语单项填空简单题查看答案及解析

A sign is another kind of language. Here are some of them that you can see on the roads.

Number One is a sign with the number thirty on it. When drivers see this sign, they must not go at more than thirty kilometers one hour. We see this sign when we are getting near a town.

Number Two is a sign that we’re near a crossing. We must drive carefully.

Number Three is a sign that there is a bend on the road. Again, we must drive slowly and carefully. It is not safe to go round a bend very fast.

Number Four is a sign that there is another road coming in from the right. There is a junction（交叉点）at this place.

Number Five is a sign that there is a hill and Number Six is a sign that the road gets narrow. Drivers must go slowly and carefully.

1.At the places where you see Sign 1　　　　　　 .

A.you are already out of the town B.you still have thirty kilometers to go

C.there must be a town thirty kilometers away D.Your speed must under 30 kilometres per hour

2.There stands Sign 2 near a place where　　　　 .

A.two roads cross B.people can cross the road

C.the road gets narrow D.there are no traffic lights

3.You have to drive not only slowly but also carefully when you find 　　　　 .

A.each of the six signs B.either of Signs 2 and 3

C.both Signs 3 and 6 D.any of Signs 3,4,5 and 6

4.Which sign shows a bend on the road?

A.Sign 1. B.Sign 2. C.Sign 3. D.Sign 4.

5.People put these signs on the road to 　　 .

A.show drivers the way B.stop cars going too fast

C.make driving even safer D.learn another kind of language

九年级英语阅读单选中等难度题查看答案及解析

A sign is another kind of language. Here are some of them that you see on the roads.

Number One is a sign with the number thirty on it. When drivers see this sign, they must not go at more than thirty kilometers an hour. We see this sign when we are getting near a town. Number Two is a sign that we’re near a crossing. We must drive carefully. Number Three is a sign that there is a bend (拐弯) in the road. Again, we must drive slowly and carefully. It is not safe to go around a bend very fast. Number Four is a sign that there is another road coming in from the right. There is a junction (交叉) at this place. Number Five is a sign that there is a hill and Number Six is a sign that the road gets narrow. Drivers must go slowly and carefully. Number Seven has the word “SCHOOL” on it. This is a sign that there is a school at the side of the street or the road. Perhaps there are children going to or leaving school. So drivers must look carefully and go slowly. Number Eight is a sign with the letter “P” on it. The letter “P” means “Parking”. At some places, there are the signs “No parking” or “No waiting”. If a driver leaves his car near one of these signs, a policeman may come and write down the number of his car.

1.At the places where you see Sign 1, ____________. .

A．you are already out of a town

B．you still have thirty kilometers to go

C．there must be many houses and building not far away

D．there must be a town thirty kilometers away

2.A driver can leave his car ___________.

A．near a sign with “P” on it in the daytime

B．near a sign with “No parking” on it

C．near a sign with “No waiting” if there’re no policemen there

D．near Sign 8 at any time

3.People put these signs on the roads to ____________.

A．make driving even safer                  B．show drivers the way

C．stop cars going too fast                   D．learn another kind of language

九年级英语阅读理解中等难度题查看答案及解析

A sign is another kind of language. Here are some of them that you can see on the roads.

Number One is a sign with the number forty on it. When driver see this sign, they must not go at more than forty kilometers one hour. We see this sign when we are getting near a town. Number Two is a sign that we’re near a crossing. We must drive carefully. Number Three is a sign that there is a bend (弯道) on the road. Again, we must drive slowly and carefully. It is not safe to go round a bend very fast. Number Four is a sign that there is another road coming in from the right. There is a junction(交叉点) at this place.

Number Five is a sign that there is a dangerous mountain road and Number Six is a sign that the road gets narrow. Drivers must go slowly and carefully when they see these signs. Number Seven is a sign that there is a school at the side of the street or the road. Perhaps there are children going to or leaving school. So drivers must look carefully and go slowly. Number Eight is a sign with a letter “P” on it. The letter “P” means “Parking”. At some places, there are signs “NO PARKING” or “NO WAITING”. If a driver leaves his car near one of these signs, a policeman may come and write down the number of his car.

1.. At the place where you see Sign 1, ________.

A. you are already out of the town

B. you still have forty kilometers to go

C. there must be a town forty kilometers away

D. there must be many houses and buildings not far away

2. There stands Sign 2 near a place where ________.

A. two roads cross                        B. the road gets narrow

C. there are no traffic lights             D. people can cross the road

3. You have to drive not only slowly but also carefully when you find ________ according to the passage.

A. either of signs 2 and 3                    B. all of signs 3, 5, 6 and 7

C. each of the eight signs                    D. any of signs 3, 6, 7 and 8

4. A driver can leave his car ________.

A. near Sign 8 at any time

B. near a sign with “NO PARKING” on it

C. near Sign 3 in the daytime

D. near a sign with “NO WAITING” if there’re no police there

5. People put these signs on the roads to ________.

A. show drivers the way                B. stop cars going too fast

C. make driving even safer            D. learn another kind of language

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Each year there is an increasing number of cars on roads and streets as millions of new cars are produced．One out of every six Americans works at putting together the parts of cars, driving trucks, building roads or filling cars with gas．American won't live without cars!

Most Americans find it hard to think what life would be like without a car．However, some have realized the serious problem of air pollution by cars．The polluted air is poisonous(有毒的)and dangerous to health．

One way to get rid of(排除)the polluted air is to build a new kind of car．That's what several of the large car factories are trying to do．But progress in this field has been slow．

Another way is to take the place of the car engine(发动机) by something else．Engineers are now working on some new cars．Many makers believe that it will take years to develop a practical model that satisfies man．

To prevent the world from being polluted by cars, we'll have to make some changes in the way of us live．Americans, for example, have to cut down on the number of their cars．They are encouraged to travel and go to work by bike．Riding a bike is thought to help keep the air clean．

But this change does not come easily------a large number of workers may find themselves without jobs if a car factory closes down．And the problem of air pollution would become less important than that of unemployment(失业)．

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