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[单选题]
What if the car,necessary to get the child to the daycare center and herself to and from her job,breaks（)？
A.down
B.up
C.out
D.in
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题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
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A.down
B.up
C.out
D.in
如果结果不匹配，请 联系老师 获取答案
更多“What if the car,necessary to g…”相关的问题
A.concurrent control
B.feedforward control
C.definitional control
D.feedback control
E.projected control
A、Because the car had remained idle for too long.
B、Because the young couple were not good at driving.
C、Because a wrong bolt was used.
D、Because a second-hand car goes wrong easily.
ort, and convenience. These cars will float along never touching the ground, and therefore will have no need for wheels. Annoying highway vibrations, caused by the rotations of the disc-and-tire wheels, will be things of the past. The coming highway passenger cars will literally fly above the road, supported on columns of air compressed by
turbine-driven fans.
The car without wheels has been called a “flying car” , and, in a sense, that’ s just what it is; however, it will not back out of the family garage, start down the street, and then suddenly go quickly upward heading for some distant point. On the contrary, to avoid problems in aerial navigation, the wheel-less vehicle probably will travel no more than three inches above road surface. It will travel over fairly rough road and even over smooth water.
The inevitable problems of maritime regulations, severe weather conditions, and running out of fuel in remote areas all will require new concepts of operation, servicing, and vehicle regulation.
1.The author believes that cars of the future _______ .
A、will be replaced by airplanes
B、will have wheels unlike those of today
C、will u s e columns of air instead of wheels
D、will u s e wheels without tires
2.Cars of the future will run _______ .
A、without annoying noise
B、without fuel
C、much more smoothly
D、on a number of fans
3.The car without wheels has been called a “flying car” because _______ .
A、it travels a few inches above the ground
B、it can fly as a plane does
C、it moves at a very high speed
D、it can travel over smooth water
4.Where is a wheel-less car least fit to travel_____ .
A、Over soft land
B、Over rough country roads
C、Over highways
D、Over waterfalls
5.Wheel-less cars will _______ .
A、eliminate all traffic problems
B、create new traffic problems
C、eliminate parking problems
D、both A and C
The summer holidays are the best part of the year for most children.The weather is usually good, so that one can spend most of one’s time playing in the garden or, if one lives in the country, out in the woods and fields.Even if one lives in a big town, one can usually go to a park to play.
The best place for a summer holiday, however, is the seaside.Some children are lucky enough to live near the sea, but for the others who do not, a week or two at one of the big seaside towns is something which they will talk about for the whole of the following year.
In England, it is not only the rich who can take their children to the seaside; if a factory worker or a bus driver, a street cleaner or a waiter wants to take his wife and children to Southend or Margate, Blackpool or Clacton, he is usually quite able to do so.
Now, what is it that children like so much about the seaside？ I think it is the sand, sea and sun more than any other things.Of course, there are lots of new things to see, nice things to eat, and exciting things to do, but it is the feeling of sand under one’s feet, of salt water on one’s skin, and of the warm sun on one’s back that makes the seaside what it is.
1.Summer holidays start _________.
A.with July
B.as soon as the examinations are over
C.in mid-June
D.in August
2.After the examination, all pupils leave for home ________.
A.by train only
B.by air
C.by bike
D.by either train or car
3.The summer holiday lasts _______.
A.as long as two months
B.more that two months
C.one and a half months
D.a little less than two months
4.July and August are the brightest months for most children, for they can _______.
A.stay with their parents for all the vacation
B.do more reading
C.play out of doors
D.meet their old friends
5.Children like the seaside so much because they can _______.
A.swim in the sea
B.play with the sand
C.take a sun bath
D.do all of the above
A.The car in front of me stalled and I missed the green light
B.The car in front of me stalled and I didn' t miss the green light
C.The car ahead stopped me and I missed the green light
D.The car ahead stopped me and I didn' t miss the green light
A.wonder
B.marvel
C.miracle
D.surprise
We could start with the advantages of mobile phones. There are many things that we could do with mobile phones. With the advancement of technology，more and more features are being added to the mobile phones which make them more useful. In addition to making calls，mobile phones also support a wide variety of other services such as text messaging，email，Internet access，business applications，gaming and photography. We can bring them everywhere，and can be reached by others anytime. They make the world smaller，bringing people together no matter where they are.
But we could have some risks when using our mobile phones. We may have accidents when we use them while driving. Some studies show that mobile phones can do harm to our bodies;and materials in mobile phones could damage our environment.
Since there are so many risks，why do we still have mobile phones？This is because these risks or disadvantages can be overcome. For example，while we are driving we can easily pull up our car if we really need to use the phone. Mobile phone manufacturers are reducing the radiation of mobile phones to avoid health risks.
Though there are both pros and cons of using mobile phones，we could easily see that there are more advantages than disadvantages. Moreover，mobile phones are becoming cheaper，which might be another reason why mobile phones are increasingly used today.
1. Which of the following functions is NOT mentioned in the passage？
A. Text messaging.
B. Camera.
C. GPS.
2. What risks might mobile phones cause？
A. Traffic accidents and health problems.
B. Environmental damage.
C. Both A and B.
3. What are mobile phone manufacturers doing to prevent mobile phone users from health risks？
A. They are reducing the radiation of mobile phones.
B. They are trying to persuade people to use mobile phones less.
C. They are developing new models of mobile phones.
4. Why do people still use mobile phones despite their disadvantages？
A. Because people don’t believe that mobile phones have any disadvantages.
B. Because the disadvantages of mobile phones can be avoided.
C. Because people cannot live without mobile phones.
5. According to the last paragraph，why are mobile phones increasingly being used today？
A. They are safer.
B. They have more functions.
C. They are becoming cheaper.
