The best-known (最熟知的) vegetable in the world is the potato. It grows in many places and does not need rich soil(土壤) like many other crops. But until four hundred years ago, the Europeans(欧洲人) began to know the potato. But today it's one of the main foods in Europe(欧洲). About half of the world's potatoes are grown in Europe.

    In France the potato was not grown for a long time .Here is story about Louis. In 1778 he saw some potato flowers for the first time .He liked them so much that he picked one and put it in his buttonhole. He was interested in the flowers not the potatoes themselves.

    Radios, telephones and televisions are widely used in the world. When you switch on the radio, you can listen. But when you use the telephone, not only can you listen to others, but also you can chat with them. However, you cannot see anything at all. Television is much better than both of them. People can watch TV and listen to it, but they cannot take part in what they see.

    Today, some people are using a new type of telephone called vision phone. With it two people who are talking can see each other. Vision phones can be of great use when you have something to show the person whom you are calling. It may also have other uses in the future. Some day you may be able to call up a library and ask to read a book right over your vision phone. You may be able to do the shopping through it too. Perhaps in the near future, vision phones will come into our everyday life.

    Around the world, there are about 7,000 National Parks. Most of them cover huge areas of land where nobody lives. However, the National Parks in England include places where people live and work, as well as wild areas where there are few human activities.

    The National Parks in England are called "England's Breathing Spaces" because they are places where people can go to be in the open air, away from the dirt and noise of cities. They provide wonderful scenes of mountains, woods, grasslands and wetlands. And there are plenty of activities to do in all of the National Parks in England. Visitors can walk or ride bikes for fun. Many of the parks put on activities for families.

    Every year there are about 110 million visitors to the parks, bringing many benefits(益处) to the areas. At the same time, it creates problems, too.

    First, life can be difficult for local people. Car parks and roads are too crowded. Gift shops and cafes take the place of many everyday shops. Even house prices in some areas can become too high. Besides, country roads can be damaged, for too many people walk, cycle or ride horses on them. Roads can be rebuilt, but then they look less natural. Another big problem to the National Parks is litter. In the parks it is a danger to wild animals. Broken glass can also cause fires by focusing the rays of the sun. Such fires in wild places can be out of control.

    _______All National Parks in England are making more rules, which tell people how to take good care of their environment. If these rules are followed, the National Parks will be well kept and continue to give pleasure to many people for a very long time.

Why do we go to zoos?Millions of people around the world visit zoos each year,but the reason is hard to explain.{#blank#}1{#/blank#}But the animals they see in zoos are little like the toys,cartoons,and decorations that fill their homes. For such children,meting with real animals can be confusing even upsetting

The great interest that children have in animals today might lead one to suppose that this has always been the case.{#blank#}2{#/blank#}That was also when zoos became an important part of middle-class life. 

{#blank#}3{#/blank#}They lived together with our ancestors（祖先）in a shared natural environment. In the Industrial Era,the human domination（支配）of animals could be seen in the popularity of real-looking animal toys. 

Children rode rocking-horses that had realistic features,and they slept with bears,tigers,and rabbits that looked and felt almost real. The Twentieth Century marked a further development—the change of animals into people. 

This was the age of Babar the Elephant,Hello Kitty,and the Lion King. Parents and children had previously wanted animals that looked like animals. {#blank#}4{#/blank#}

In a zoo they hope to see the living breathing versions of their character friends. They find instead unfamiliar creatures who cannot speak,smile or interact with them. For this reason,a visit to the zoo can be disappointing for children today. {#blank#}5{#/blank#}Meeting real animals reminds us forcefully of the boundary( 界 限 )between imagination and reality. When we visit animals in a zoo,perhaps we will recall our true relationship not only to animals but to the entire world. 

A. Animals are the best friends of the human beings. 

B. Many of those visitors are children,whose lives are already surrounded by animals' images. 

C. Perhaps that disappointment is the best gift a zoo can offer

D. But now they want animals that look and act like humans

E. Yet,it was not until the Industrial Era that animals became part of childhood. 

F. In prehistoric times,there had been no zoos,as animals were a real part of the human world

Maybe you'll forget your password and ID, but you'll never forget your face. Using your face as your ID is {#blank#}1{#/blank#}(quick) and easier than using your password. 

In China, facial recognition(人脸识别) systems have been used in many {#blank#}2{#/blank#}(area). In Zhengzhou, people can {#blank#}3{#/blank#}(easy) get on the underground by using it. Students at Peking University can go {#blank#}4{#/blank#} the school gate by scanning(扫描) their faces. It has also been used by the police {#blank#}5{#/blank#}(catch) criminals(罪犯). 

"However, like all new technologies, facial recognition can {#blank#}6{#/blank#}(use) for good or ill. There are now no laws to manage the use {#blank#}7{#/blank#} collection of facial information, " according to Zhao Zhanling, {#blank#}8{#/blank#} famous researcher. Many people are worried about the privacy breach(隐私泄露). They wonder if the laws {#blank#}9{#/blank#}(make) in the future. 

So, the question is {#blank#}10{#/blank#} this powerful technology will be developed widely or be controlled wisely in the future. Anyway, the government should find how to use it properly.