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题型:阅读理解-阅读单选 难度:0.85 引用次数:369 题号:343891

China is going green. In order to reduce air pollution and oil shortages, carmakers have announced their plans to develop hybrid vehicles (混合燃料汽车) for the Chinese market. Toyota’s hybrid car Prius will be ready to drive in China this week. Let’s have a look at the new car.

Any vehicle is a hybrid run on a rechargeable battery and gas. Hybrid cars have special engines, which are smaller than traditional gas engines. The gasoline engine provides 99 percent of the power when the car is going at a steady speed. A specially designed battery motor provides extra power for running up hills or when it needs to speed up.

Step into a Prius, and turn on the engine. The first thing you notice is that it is quieter than a traditional car. At this point, the car’s gas engine is at rest. The electric motor will provide power until the car reaches about 24km/h. If you stay at a low speed, you are effectively driving an electric car, with no gas being used, and no waste gas given off.

The computer decides when to use the gas engine, when to go electric, and when to use a combination of the two. If you go over 24km/h, when you step on the gas pedal (油门), you are telling the computer how fast you want to go.

The electric motor recharges automatically using a set of batteries. And when driving at a high speed, the gas engine not only powers the car but also recharges the batteries. When you use the brake, the electric motor in the wheels will work like a generator (发电机) to produce electricity to recharge the batteries. As a result, the car’s batteries will last for around 200,000 miles.

1. The underlined sentence probably means ________.
A.there will be more and more green land in China
B.China’s new cars are combinations of different green models
C.China is still young and lacking in experience
D.the environment is getting better in China
2. What is the most important feature of hybrid cars?
A.They are powered by both a rechargeable battery and gas.
B.They have smaller engines than traditional gas ones.
C.They only use 99 percent of their power to run up hill.
D.They are much quieter than traditional cars.
3. We can know from the story that ________.
A.the gas engine recharges the batteries as well as powering the car
B.using the brake suggests that the gas engine should work
C.the car’s batteries will last for around 200,000 miles without being recharged
D.the batteries can be recharged at any time you want
4. The author writes the passage mainly to________.
A.announce plans to develop hybrid vehicles for the Chinese market
B.let people know how to save their gas when driving a car
C.teach people how to drive a hybrid car
D.introduce a new kind of “green” car
5. Which of the following statements is TRUE according to the text?
A.The hybrid car is environmentally friendly.
B.The hybrid car is unable to get itself recharged.
C.The hybrid car has been made in mass.
D.The hybrid car can decide what power to use
9-10高一上·广东湛江·期末 查看更多[2]

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Could you imagine being in a car driven by a computer, not a human? Recently, China has made a big step toward self-driving cars.

Since August, driverless taxis can run on roads in Wuhan, Chongqing and Shenzhen. Self-driving cars bring us many benefits. They use computers to sense the things around them and make better use of space. This means fewer traffic jams and better parking of cars. For disabled or blind people, self-driving cars can also help them get around more easily.

According to US Centers for Disease Control and Prevention, more than 1.35 million people are killed on roads around the world every year. Many more are injured. Self-driving cars could reduce road accidents by 90 percent and save governments a lot of money, said the website TechDim. The main cause of car accidents is human mistakes. By using computers, self-driving cars don’t make poor decisions or lose attention like humans do.

But self-driving cars aren’t perfect. If something unexpected on the road happens, self-driving cars can’t react as fast as a human driver could. Also, during weather events like heavy snow, self-driving car s would struggle (费力) to see the lines on the road. It might lead to an accident. The car’s computer system could also get hacked (非法入侵) by someone, causing it to crash or change its destination (目的地).

It’s clear that there is a lot of work to do to make self-driving cars a common and safe sight on our roads.And China is taking the lead in making this happen.

Title     1    
Benefits◆There will be fewer traffic jams with the use of computers in the car.
◆The cars can make good use of the space, and people can park cars easily.
◆The lives of the disabled will be     2    
    3     human, self-driving cars won’t suffer from loss of attention or make poor decisions, so they can also reduce car accidents.
Imperfection(不完美)◆The cars can’t react faster than a human driver if something unexpected on the road happens.
◆The cars would     4     seeing the lines on the road to lead to an accident during the weather events.
◆Getting the car’s computer system hacked will lead to the     5     of car crash and destination change.
2023-09-18更新 | 65次组卷
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【推荐2】The first typewriters were big heavy metal machines that worked a bit like a piano. Have you ever seen the inside of a real piano? You press a key and some levers( 杠杆) make a small tool inside hit just the right piano string to make a note. Early typewriters were similar.They had all these levers with a metal letter at the end of each of them.You had to press a letter key quite hard to make the metal lever fly across and hit the paper.

The first machine did have the letter keys in the order of the letters we learn. But the trouble was that if you hit two keys quickly the levers would jam(卡住). Jams were most likely when the two keys were close together on the keyboard.

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QWERTY was developed for the English language. The keyboard slightly differs around the world. For example AZERTY is commonly used for French, QWERTZ for German,and QZERTY for Italian. Perhaps you can find someone from India, Japan or Korea. Ask them to show you the keyboard they use in their language.

1. What is the author’s purpose in writing the first paragraph?
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