C. “Have you brought anything on which custom duties must be paid?”
You jump into a car, tell it where you want to go then sit back and let a computer take control. It
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seems a dream in the future. It isn't.
In many ways such driverless cars are already with us. There is partial automation in many cars, such as intelligent braking, lane departure warning and automatic parking. The systems are there
cars can pretty much drive themselves. No one noticed the introduction of cruise control. We've got collision avoidance, and we'll soon have automatic lane change.
Improving this technology should make the roads safer. Machines are much better at following rules than humans. Driveway signs advise drivers to slow down to avoid jams. They are often ignored by drivers. But it won't happen
a computer. Driverless cars could also choose the best route to avoid traffic jams.
Fewer jams will mean stop-start driving. Maintaining smooth and constant speeds will improve fuel efficiency. Computers could also be programmed to take the greenest route, rather than the fastest one. Under computer control, cars could also travel much closer together.
They can effectively “slipstream” one another and use less fuel to move themselves forward. They can even form multi-car “trains” going
high speeds. However, with driverless cars on the roads, there will be potential trust issues between people and machines. We could therefore see guard rails back on the sides of pavements. This would be a backwards step.
1. A. because B. so that C. such as
2. A. creating B. to creat C. creat
3. A. with B. to C. on
4. A. more B. little C. less
6. A. over B. in C. at
— I was worried about this out-dated equipment. A. Yeah,it may bring a health hazed. 正确 B. It's too old. C. You're so lucky.
— Oh, dear! I've just broken a window.
A. That's fine. B. Great.
C. Don't worrry. 正确
He has forgotten to the battery.
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A. load B. charge 正确 C. electrify
If I had time ,__________ see that new movie at the University Theatre. A. I may B. I'll C. I'd 正确
He is the right person to such a large wine company. A. rule
B. supervise 正确 C. managing
二、阅读理解：阅读下面的短文，根据文章内容从A、B、C三个选项中选出一个最佳选项。
Man is a land animal, but he is also closely tied to the sea. Throughout history the sea has served the needs of man. The sea has provided man with food and a convenient way to travel to many parts of the world. Today, nearly two—thirds of the world's population live within 80 kilometers of the sea coast.
In the modern technological world, the sea offers many resources to help mankind survive. Resources on land are beginning to be used up. The sea, however, still can be hoped to supply many of man's needs.
The list of riches of the sea yet to be developed by man's technology is impressive. Oil and gas explorations have been carried out for nearly 30 years. Valuable amounts of minerals exist on the ocean floor ready to be mined (开采).
Fish farming promises to be a good way to produce large quantities of food. The culture of fish and shellfish is an ancient skill practiced in the past mainly by Oriental people.
Besides oil and gas, the sea may offer new sources of energy. Experts believe that the warm temperature of the ocean can be used in a way similar to the steam in a steamship. Ocean currents (水流) and waves offer possible use as a source of energy.
Technology is enabling man to explore ever more deeply under the sea. The development of
strong, new materials has made this possible.
The technology to harvest the sea continues to improve. Experts believe that by the year 2000 the problems that prevent us from exploiting fully the food, minerals, and energy sources of the sea will be largely solved.
1. The major things that the sea offers man are C
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A. fish and oil
B. warm temperature and ocean currents C. the food, energy sources, and minerals 2. The sea serves the needs of man because . C A. in provides man with food B. it supplies man with minerals C. all of the above
3. We can conclude from this passage that . B A. the sea resources have largely been used up
B. the sea, in the broad sense, has not yet been developed
C. the problems that prevent us from using the food, minerals, and energy sources of the sea have already been solved.
4. The underlined words Oriental people in the fourth paragraph probably mean A A. the people in Asia B. African people C. European people
5. The best title for this passage is C A. Sea Harvest
B. Technology for Exploiting the Sea C. Man and the Sea
That's what this material does. It is developed for the British Army. The fabric is made of yarn. The yarn can conduct electricity from a battery pack to anywhere in your clothing. It can charge your gadgets on contact.
It can carry either power or data through a soldier's clothes, helmet, or backpack. It can gear that otherwise needs separate power sources. The materials have been field tested. But they still need to be weather-proofed.
Right now, charging up a battery still involves wires, chargers, and sockets. Inductive charging is developing. But you can not just put your phone down on any surface and start powering up.
And what if that could be hacked together with some kind of inductive charging? You'd be able to almost totally cut the cord with your gadgets. Yes, you'd need to charge up whatever power
source you're using now and then. But keep a pair of khakis plugged in while they hang in the closet.
A. But what if your pants or jacket or bag could charge your phone, or laptop or anything else?
B. The fabric is developed by Intelligent Textiles.
C. Imagine having jeans that charge your phone just by putting it in your pocket. D. It is a lot different from having to remember to plug in your phone.
E. And that's all great, but would this ever be made it into your home, and charge your
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phone or laptop someday? CBEAD
.
国家开放大学理工英语三期末考试习题答案
