请认真阅读下面短文，并根据短文内容回答问题。
A 9.0-magnitude earthquake occurred
off the northeastern coast of Japan on 11 March

The earthquake in Japan on March 11,2011 was a 9.0 on the Richter scale (里氏). Over 6,500 died because of the disaster by March 18. The earthquake also caused a tsunami (海啸) and a nuclear leak (核泄漏).
However, most Japanese people stayed calm and orderly.They left broken houses calmly. They waited in line for food, water and public telephones. There was no robbing (抢劫) and no pushing.
Earthquakes hit Japan almost every year. People are ready for an earthquake at any time.

In Japan, you can learn about earthquakes on TV and in schoolbooks. Even the famous comic, Sakura Momoko (《樱桃小丸子》), shows earthquake training in a school. Almost every family in Japan has a survival kit (救生包). The kit has a flashlight (手电筒), a radio, water and enough food for several days.
Most buildings in Japan use wood. The material is less dangerous during a disaster. The buildings can  stand an earthquake of up to 7.0 on the Richter scale.
【小题1】How large was the earthquake in Japan on March 11?
                                                           
【小题2】What did the earthquake cause besides many people’s death?
                                                           
【小题3】Where can Japanese people learn about earthquakes?
                                                           
【小题4】What are most buildings in Japan made of?
                                                           
【小题5】What can we learn from Japanese people if the disaster happens to us?
                                                           

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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Qi Haoran, a Junior 1 student at High School Attached to Harbin Institute of Technology, was quite busy over the past winter vacation—and not just with homework. Qi, together with 10 other classmates made a volunteer group to call on people to join the Clean Your Plate Campaign (光盘行动).
The 11 students went to many restaurants and told people the importance of saving food.“Excuse me, do you know that 950 million people around the world still haven’t got enough to eat? Could you please not waste food?”They would say this kind of thing hundreds of times every day.
China in recent years has experienced serious problems with wasted food. CCTV reported in January that the food Chinese people waste every year is enough to feed 200 million people for a year. It’s a tradition that Chinese people offer lots of food when they invite others to dinner. Many even feel that they will lose face if their guests have eaten all their food.
Luckily the campaign has got the support of many. In a restaurant in Xinjiang, the owner gives the guests who have eaten up all that they ordered a sticker. People can enjoy a free meal when they have 10 stickers. More than 750 restaurants in Beijing have begun to offer smaller dishes and encourage their guests to take leftovers(剩饭剩菜) home.
Wasting food is a serious problem around the world, not only in China. It’s said that 2 billion tons(吨) of food ends up as waste every year in our country. This is as much as half of all the food in the world. The UN Environment Program and the Food and Agriculture Organization held a“Think, Eat, Save” program on January 24 to help reduce food waste.
To reduce food waste is a big task, and it needs time. It’s important that everyone does their bit, just like Qi. Did you finish your meals today?
【小题1】The Clean Your Plate Campaign calls on people to __________.