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题目：
1.科学家认为，出生在夏天将赋予你开朗的性情，而出生在冬天则可能给你的快乐蒙上永久的阴影。实验表明，出生的季节会极大地影响人体生物钟运转的速度。冬天出生的人体内的生物钟运转得太慢，从而可能对健康和性格产生影响。这一离奇有趣的理论来自一项对老鼠的研究，该研究把刚出生的老鼠暴露在不等量的光线下长达数月。2. 有些老鼠被放置在夏天的光照条件下，每天有16小时的“白天”和8个小时的“黑夜”。其他老鼠则只有8个小时的“白天”，和冬天昼短夜长的光照条件类似。在这些老鼠断奶后，他们被放置在相同的光照周期中长达数周，或转换到相反的光照环境。最后，科学家把它们都放置到黑暗中，观察它们的反应。3.根据《自然神经科学》杂志的报道，那些在夏天的光照条件下成长起来的老鼠像往常一样作息，而那些在缺少光线的环境中成长起来的老鼠在应对这一变化时却显得吃力。研究者道格拉斯?麦克马洪教授说：“在冬天的光照周期中成长起来的老鼠对于季节的变化表现出夸大的反应，这和得了季节性情感抑郁症的人类病患的反应极其相似。”
题目：
Directions: Translate the following three underlined parts from English into Chinese and write your translation on the ANSWER SHEET.Passenger jets of Japan’s air carrier All Nippon Airways are seen parked on the tarmac at TokyoInternational Airport in 2008. The Japanese airline is taking its weight-saving efforts to new heights, asking passengers on some of its flights to visit the restroom before flying.1.A Japanese airline is taking its weight-saving efforts to new heights，asking passengers on some of its flights to visit the restroom before flying. The unusual request is one of a number of measures being tried out by All Nippon Airways to reduce fuel consumption. ANA estimates that if half its passengers went to the bathroom before boarding, it could reduce its carbon dioxide emissions by 4. 2 tons a month, said company spokeswoman Megumi Tezuka.2.The airline will also recycle paper cups and plastic bottles，and use chopsticks produced from wood from forest thinning projects，as part of its efforts to become more environmentally friendly. The measures are being trialed on 38 domestic flights and four international flights — on the Tokyo-Singapore route — during October.3.The move follows earlier steps by airlines to reduce the weight of flights by trimming the size of in-flight magazines，slimming the handles of forks and spoons and using lighter drink trolleys and porcelain. ANA announced in April its first annual loss in six years as the global economic downturn reduced the number of people taking to the skies.It is not the only airline looking to the lavatory to save money. Irish budget airline Ryanair has previously said it is considering charging passengers to use on-board toilets.
题目：
You are required to write about 200 words on the following topic: “ Is it better to set up a bridge or a wall between China and the west? ”
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