回答问题

Today ,more and more sharks(鲨鱼)die because of humans' activities .Sharks are facing hard living conditions these days. As we know ,sharks are among the oldest animals on earth. There are over 500 kinds of sharks living in the oceans. Most of them are quite large and they are about two meters long. Yet some are small , for example, the dogfish shark is less than 20cm long . The shark has a strong sense of smell. This sense helps sharks find their food . Sharks eat fish and plants in the ocean.

Sharks grow slowly. About forty percent of all sharks lay(产) eggs. The others give birth to baby sharks. Some sharks carry their babies inside their bodies as humans do. Some sharks are not able to have babies until they are twenty years old. And each of them gives birth to at most ten baby sharks.

People kill sharks for food, medicine and their skin(皮肤). Experts say the market needs much more sharks . In Asia, people enjoy a kind of food made from shark fins(鱼翅).

For the reasons above, some sharks are endangered.

根据上面的文章用完整句子回答下面5个问题。

1.How is sharks' living conditions these days?

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2.What’s the number of the kinds of sharks living in the oceans?

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3.What do sharks eat in the ocean?

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4.What’s the length (长度)of the dogfish shark?

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5.Where do people enjoy a kind of food made from shark fins?

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The year is 2025, and it’s 7:45 on a rainy Monday morning, and you are in your car and on your way to work. You turn left, and then you turn right. ______ When the light turns green and there are no other cars in the crossing, you continue on your way. Ten minutes later, you arrive at work and you stop reading the morning paper. Then, you get out of your car and you say, “Thank you!” ______ This possible future may sound unreal, but in fact many car companies are already testing robotic cars, or “driverless cars”, on the roads today.

______ By 2025 companies such as VOLVO, GM, Nissan and WMW plan to sell driverless cars. Driverless cars are not really “driverless” - the “drivers” are the computers that use radar, computer maps and other modern technology. They offer many advantages. ______ For example, in 1968 more than 53,000 people lost their lives in car accidents in the USA. In addition, people will spend less time stuck in traffic jams and there will be no need for people to have a driving license. ______ The technology is not free. US $ 5,000 to US $ 10,000 may be added to the price of a new car. At sometime in your life, you will probably be sitting in a driver-less car on your way to work or on your way to school. The future is almost here. Are you ready for it?

根据材料内容,从下面五个选项中选出能填入文中空缺处的最佳选项,使短文意思通顺、内容完整。

A. Your car replies, “You’re welcome!”

B. A few minutes later, you stop at a traffic light.

C. In the 1980s, Germany and the United States tested the first driverless cars.

D. One of the major disadvantages of the new technology , however , is the cost.

E. Perhaps the most important of these is fewer deaths caused by road accidents.

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