阅读与回答问题

1970 was “World Conservation(保护) Year”. The United Nations wanted everyone to know that the world is at risk(危险).They hoped that people would do something quickly to conserve nature.

Here is one example of the problem. At one time there were 1,300 plants, trees and flowers in Holland, but now only 860 are existing. The others have been destroyed by modern man and his technology.

Here is another example. In 1620, about half the USA was covered by forests. In 1850, about a third was covered by forests. Today the forests have almost gone. A lot of good land has gone with them, leaving only sand. Today too many trees are still being cut down.

We’re changing the earth, the air and water. We can’t live without these things. If we go on like this, we shall destroy ourselves. A lot of people know that conservation is necessary. Many things have been done to save our world. For example, people plant more and more trees on the hills. In a small town in the USA a large group of girls cleaned the banks of 11 kilometers of their river. Young people may hear about conservation through a record by the name of NO ONE’S GOING TO CHANGE OUR WORLD. It was made by Scales, Cliff Richard and other singers. The money from it will help to conserve wild plants and animals. In China, a new Great Wall has been built across the northern part of the country to stop the sand from moving towards the rich farmland in the south.

1.What year was 1970?

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2.What did the United Nations hope ?

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3.How much land in the USA is covered by forests in 1850?

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4.Can you give us an example that people have done to save our world?

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5.What has a new Great Wall been built for?

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Many years before the United States was founded(建立), Americans had already invented barbecues. But the first barbecues, in fact ,were the invention of the Taino Indians of Haiti, who dried their meat on raised frames(架子)of sticks over fires. Spanish explorers spelled the Taino word as barbacoa, and as time passed, English settlers along the Atlantic coat had their own barbecues.
One summer day in 1773, Benjamin Lynde, a citizen of Massachusetts, wrote in his diary, “Fair and hot ; Browne;hack overset.” That is , on a bright and hot day he went to the Brownes to attedn a barbecue, and his carriage(马车)fell over. It shows that the barbecue had its social occasion by that time. Large animals would be roasted whole on frames over hot fires, and neighbours would be invited to dinner.
In later centuries, as settlers moved to the west, the barbecue went along with it, reaching an especially large size in Texas, where a pit (坑)for fuels(燃料) such as tree branches might be over ten feet deep. Today , the barbecue grills(烧烤架)which are fueled by charcoal(木炭) or electricity are likely to be small and easy to move , and can cook only parts of an animal at a time, but people still have barbecues out of doors and always invite their neighbours or friends over.
【小题1】Who invented the barbecues first in history?

短文综合填空（本大题满分11分，每空1分）

Most people may not think that there are any problems with watermelons, but some Japanese sellers do. There is often wasted s_______1.when they store watermelons, because round watermelons do not sit nicely on shelves. So some c_______2.farmers have solved the watermelon problem. They make their watermelons grow in square glass boxes so the watermelons become square. The only problem now is the p_______3.. The square watermelons cost about 80 dollars each.

Many people know the s_______4.“Roses are red, violets(紫罗兰) are blue, sugar is sweet and so are you”. Well, today the poem needs to c_______5.“Roses are red” to “Roses are red, roses are blue”! Australian scientists discovered that when they put a chemical from a blue f_______6.into a rose, they can create a nearly 100% blue rose. Some of science’s inventions are beautiful, not just u_______7.!

For many years Chinese scientists have been w_______8.on developing new kinds of stronger rice and now they have produced a new kind, called super rice. Super rice not only can protect i_______9. against insects(昆虫) and diseases(病害), but it also produces more than any other kind of rice. Today farmers can grow almost one and a half times more rice than they could grow in the p_______10..

Doctors might be able to use vegetables to fight cancer now. US scientists have discovered a w_______11.to put a chemical into tomato plants while they are growing. When cancer patients eat the tomatoes, the tomatoes will fight the cancer in their bodies.