Part III Short Answer Questions

　　86. different causes that have influence on the alteration of weather

　　87. raise the temperature of the earth's surface

　　88. This phenomenon may be due to the variable behavior of the sun

　　89. the world should be entering a new Ice Age

　　90. as a counterbalance to the cooling of the earth's surface

　　Part IV Writing (for reference only)

　　Pollution: An Increasing Concern in China

　　It is reported that ten big cities in China are being ranked among the top twenty cities with the highest pollution index in the world. This means it is high time that we did something to bring the situation under control.

　　Many factors are contributing to the worsening situation: industrial wastes pumped into the air, the lakes and the rivers; more and more automobiles crowding into the streets; the widespread use of plastic bags,etc.

　　To my view, stiffer laws and regulations must be implemented to check pollution. Industries that release wastes without permission should be heavily fined. Cars should be equipped to minimize the exhaust they release into the air. And the use of plastic bags and disposable meal boxes should be banned.

　　What's more, the media should play an important role in implanting a sense of environmental consciousness into people's mind. If everybody works towards a common goal of making the environment better, we can create a cleaner and lovelier world for us and for the coming generations as well.

    做完这套六级全套模拟题后，考生要对照答案认真找出自己的不足，总结做题技巧，练习的时候掐着时间，以适应真正考试的时间安排。

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