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We all know that a smile is usually a sign ________ people feel friendly and happy.

A. whenB. howC. thatD. if

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假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处。错误仅涉及一个单词的增加、删除或修改。增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。删除:把多余的词用斜线(\)划掉。修改:在错的词下划一横线,并在该词下面写出修改后的词。

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What can we prevent ourselves from getting low scores in exams? Here, one of our teacher gives us some useful suggestions.

It's important to have a correct attitude toward exams, which purpose is to see how we're getting on with our study. So it is no need to worry about the results.

Before exams, control our test anxiety by listening some light music. Besides, learning from the past-exam mistakes is also a effective way. While taking exams, we'd better plan your time careful. And then we should spare a few minutes to check that what we had done to avoid silly mistakes.

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Some doctors say that both repressing and expressing anger can be dangerous. They believe that those who express anger violently may be more likely to develop heart disease, and they believe that those who keep anger inside may face a greater danger of high blood pressure.

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Doctors say that a good way to deal with anger is to find humor in the situation that has made you angry. __5.___

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It is five years now since I graduate from No. 6 High School. Last Saturday, the class that I was on held a get-together, which took us a long time prepare. It was indeed not easy to get in the touch with everybody and set a well time for all of us. We all enjoyed this precious day greatly, remember the time we spent together and the people they were familiar with. It was a pity which some of us were not present as they had gone to abroad for further study, but they called back or sent greeting card from different places.

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Dear Jamie,

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Amongst the alien species discovered were the Iceland Poppy, and Annual Winter Grass — all from cold climates and capable of growing in Antarctica.

The Antarctic Peninsula, where most tourists travel, is now considered a “hot spot” on the frozen continent and the warmer the climate, the easier for seeds to grow. “The peninsula(半岛) is warming at some of the greatest rates on the planet,” said Bergstrom.

The study, the first continent-wide assessment of invasive species in Antarctica, surveyed about 1,000 passengers during 2007-2008, the first year of the International Polar Year, an international effort to research the polar areas.

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B. The development of native plants.

C. The discovery of new plants.

D. The promising future of tourism.

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A. They contribute to the biodiversity.

B. They lead to the warming up of Antarctica.

C. They make the native plants more competitive.

D. They break the balance of the natural environment of plants.

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A. The International Polar Year started in 2007.

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A. To introduce the native environment of Antarctica.

B. To warn people of the danger of alien plant seeds to Antarctica.

C. To explain the relationship between plants and climate.

D. To give visitors some tips on how to explore Antarctica.

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Jack Ma is the founder and CEO of Alibaba Group. He was one of the 100 global "future leaders" of the 2001 World Economic Forum and the "commercial leader" of 2001 elected by US Commercial Association of Asia.

Born in the city of Hangzhou, Zhejiang Province, Ma graduated from Hangzhou Teachers Institute in 1988 (he failed the entrance exam twice) and became a lecturer in English and International Trade.

In 1985, a one-month visit to see an Australian pen pal he had met in Hangzhou changed his life. "Everything I'd learned in China was that China was the richest country in the world," he said. "When I arrived in Australia, I realized it's totally different. I started to think you have to use your own mind to judge, to think." After his return, Ma became the chairman of the Students' Union of the whole city.

Jack Ma founded Alibaba.com in 1999, a China based business to business marketplace site. In 2003, Alibaba launched Taobao.com, a consumer to consumer auction (消费者拍卖) website similar to eBay.

Ma said that he got most of his ideas while taking very long, hot showers. He likes to spend time walking his four dogs and playing chess and poker. He said, "I've learned a lot of business philosophy by playing poker."

Looking ahead, Ma said that he dreamed of using his group's resources to improve the lives of all Chinese people, especially the 900 million farmers. "There must be some way of using our experience, our know-how, and make their life easier," he said.

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A. his pen pal

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C. his failure in the entrance exam

D. his experience in Australia

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B. Jack Ma will devote a lot of money to help the Chinese farmers

C. they will teach the farmers how to use their resources

D. Alibaba groups resources will be given away to the farmers

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