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　　First it was an earthquake．Then came a terrible tsunami．These natural disasters killed thousands of people in Japan on Mar．11, 2011．Then a nuclear crisis(核危机)put the island in danger and shocked the world．

　　Damaged by the earthquake and tsunami, Fukushima Daiichi nuclear plant(福岛第一核电站)has put out dangerous radioactive(放射性的)materials．Experts from several countries are working to control the crisis．

　　Although the reports say the leak so far will not cause huge health problems, people are worrying about nuclear safety．Switzerland has stopped plans to build new nuclear plants．Germany raised questions about its nuclear future．

　　As for China, the government has suspended approving(暂停审批)new nuclear power stations and stepped up safety checks at existing plants, Xinhua reported．But it is reported that all nuclear power stations in China are safe．

　　A nuclear power plant creates electricity．It is a clean energy source．In 1954, the world's first nuclear power plant was built in Russia．From then on, nuclear power has been widely used．

　　But nuclear power plants have hidden problems．If radioactive materials get into the air or water, they can pollute soil and plants and harm humans and animals．Nuclear accidents, such as the Chernobyl(切尔诺贝利)disaster in 1986 in the Ukraine, have caused great damage to the nearby people and the environment．

　　Will there be another choice for energy that we can use in the future? In recent years, scientists have found ways to make electricity from sunshine, wind and garbage．

　　Some scientists say hydrogen(氢气)may be used to create power．Hydrogen is a clean resource to use, and will never disappear．Some car companies have already developed cars powered by hydrogen．But still, the technology for its production is only in early stages of development．

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　　It was a sunny day，we had no classes．Mr．Li and our class went for a picnic in the open air．We walked to a village called Zhaocun．There were many green trees，and the water was nice and green，too．

　　After a while，we felt very hungry，so we cooked quickly．We were all busy，but we really enjoyed it．There was much food：tomatoes，fried eggs，and chips．They all looked very nice．We ate the food hungrily．Soon the bowls and plates were all empty．We laughed and felt very excited．

　　We flew kites after lunch．The boys were better at flying kites than the girls．They could fly kites very high．A kite looked like a big bird．It flew up and down，round and round．The highest kite is up in the cloud．

　　How time flied．The picnic was over，but we had a lot of fun．What an interesting and exciting picnic！

　　根据短文内容，判断正误，正确的写“T”，错误的写“F”。

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完形填空，通读下面的短文，掌握其大意，然后从每小题所给的A，B，C三个选项中选出一个最佳答案。

I had a very unusual experience(经历)on Sunday．At ten in the morning, I was 　　1　　 down the street when a UFO landed right 　　2　　 of me．You can imagine(想象) 　　3　　 strange it was! An alien 　　4　　 and walked down Center Street．I followed it to see 　　5　　 it was going, and I was very surprised when it went 　　6　　 a souvenir shop．While it was 　　7　　 at the souvenirs(纪念品), the shop assistant called the 　　8　　．Before the police arrived, the alien left the 　　9　　 and then visited the Museum of Flight．　　10　　 the alien was in the museum, I called the TV station．Isn't that amazing!

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完形填空。

　　It was an unexpected holiday．　　1　　 April 19,we were told to leave school and stay at home because of a new deadly disease called SARS．

　　It is not very 　　2　　 to be stuck at home(憋在家里),unable to 　　3　　．Although our classes are sometimes boring,going to school is much 　　4　　 than staying at home．

　　I am even starting to 　　5　　 some of my teachers．It would be nice just to see their faces again．Meeting old classmates would be great too．I feel as if 　　6　　 haven't seen them for ages．

　　After weeks of being at 　　7　　,I asked my parents to take my cousins and me to the Great Wall．Being able to go out made me feel 　　8　　．It was not very crowded there because 　　9　　 people were leaving their homes．

　　My school has asked me to do a special job during this unusual 　　10　　．

Every day I phone ten of my classmates and ask them to 　　11　　 their temperatures．I also ask them if they have done their homework．　　12　　 I give the information to our teacher．

　　There is a lot of fun．

　　I have 　　13　　 made so many phone calls to my classmates!

　　　　14　　 knows how long this holiday will last．When we go back to school,I 　　15　　 everything will return to normal(正常)．I miss my friends and school very much．

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