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Directions: Choose one of the two topics to develop an essay of about 300 words.1.China’s Opportunities and Challenges with the Coming of Globalization.2.Some people believe that the Earth is being damaged by human, activity. Others feel that human activity makes the Earth a better place to live. What is your opinion? Use specific reasons and examples to support your answer.

1.经济活动对环境有着潜在的影响，人们对此已经有了一定的认识。2.要让我们的国产品牌为世界更多的消费者认可，广告创作就必须使用国际通用的语言。3.有一种理论，把对目的语的敏感性视作语言学习中最重要的因素之一。4.为了帮助学生学习语言，图书馆已经决定将英语原版电影出租给他们。5.心理学家们已经做了无数次试验表明，在改进人的行为方面，表扬比批评有效得多。

1.When you are in the business of sending spacecraft to other planets, it is probably wise to do everything you can to keep your space-probes sterile (无菌的). NASA, America’s space agency, certainly does so. After all, you would not want hugs from one planet to contaminate another where they might possibly thrive.But according to Curt Mileikowsky, of the Royal Institute of Technology in Stockholm, this may already have happened naturally billions of years ago when the solar system was young. For Dr Mileikowsky has taken a century-old idea called panspermia (有生源说), and shown that it is plausible.2.Panspermia is the theory that life does not start independently on each planet that has it (assuming that other planets do). Rather, it hops from place to place, “infecting” new worlds as it goes. Supported by experts in biology, geology and celestial mechanics, Dr Mileikowsky argued to the American Astronomical Society meeting in Atlanta that this is not as outlandish as it sounds.3.Bungling space organizations apart, the only mode of travel open to microbes seems to be meteorites. Most of these are small bits of junk from the asteroid (小行星) belt that have gone off course. But some are rocks that have been flung into space from the surfaces of planets as a result of those planets having been struck by even larger bits of rock—decent—sized asteroids or comets.4.If there is life on such a planet, microscopic forms of it will probably live deep inside rocks, as they do on earth. The acceleration of lift-off would not kill something that size.5.If a rock is large enough, the heat generated as it is thrown clear will be negligible except at its surface—where, if anything, melting may even produce an airtight skin to protect any microbes deeper down from the unpleasant vacuum of space.

Obviously, the employer’s reply bore little（）to employees’ requirements.

Two centuries have（）to meet in smaller working groups and deepen negotiations over the North’s nuclear.

Personnel department takes charge of deciding who should be（）our Paris branch.

He is proud of his children that he often（）about their small achievement.

Heavy fighting has been going on after the guerrillas had（）their offensive attack on local force.

This is a difficult job, if you try your best, you will learn how to do it（）.

At this single point in the interior, there has been in some far distant age, a great sudden volcanic（）.

There are both advantages and disadvantages in the scheme proposed, but（）I think we should benefit by adopting it.

Every member of the society has to make a（）struggle for the freedom of the country.

The world’s governments have done （）nothing to combat the threat of nuclear accidents.

The magician picked out several people（）from the audience and asked them to help him with the performance.

The village moved further and further away from the city；as a result, links with the outside community have（）.

The number of copies the paper seils seems to be in（）proportion to the amount of news it contains.

The heavy fog had created an optical（）that made the opposite shore of the lake seem closer than it was.

When the party finished at 11 o’clock, the balloons my uncle had（）at our dinner table had most of them exploded.

He knew that he was poor, and would admit it; he would have died sooner than confess any（）to the rich.

To my surprise, all the students in our class（）against having to do three hours’ homework each evening.

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