四六级

　　听力一直许多英语六级考生的心头之痛，想要突破听力，日常练习是必不可少的，以下是小编为大家准备的英语六级听力在线练习，希望对各位考生有帮助！

英语六级听力模拟练习47

　　23

　　A.The former is helpful while the latter is harmful.

　　B.The former can be avoided while the latter cannot.

　　C.The former causes more harm than the latter.

　　D.The former is natural while the latter is not.

　　24

　　A.Large areas of forests are felled.

　　B.The world population keeps increasing.

　　C.People create things that release extra heat.

　　D.There are too many cars that bum gas.

　　25

　　A.The polar ice caps and glaciers will melt.

　　B.More animals will have to find new habitats.

　　C.The price of gas will keep soaring.

　　D.There will be more earthquakes.

　　参考答案解析：

　　【小题23】听力原文在对温室效应进行解释说明之后总结说Anyway, like I said, it's a pretty natural process. 指出温室效应是一个十分自然的过程。随后说到人类在大气中增加了很多物质时，所有的这一切就变糟糕了，并紧接着提到That's when global warming, which is not a natural process, happens.由此可见，全球变暖不是自然过程，而是人类使然，因此D项表述正确，故选D。

　　【小题24】听力原文中在说到全球变暖并非自然过程之后，提到See, what happens is that people create, um, things that create extra heat.由此可知，全球变暖是由于人们制造了很多排放多余热量的事物，故选C。A、B两项在听力原文中并未提及，D项中提到了消耗汽油的汽车，但这只是造成全球变暖的一个因素，并不能概括所有因素，故排除。

　　【小题25】听力原文中提到Now global warming has many negative effects, but I think one of the biggest problems with global warming is the melting of polar ice caps and glaciers.指出在演讲者看来，全球变暖的最大问题在于极地冰雪融化，因而A项表述正确，故选A。其他几项在听力原文中并未提及，均排除。

　　以上就是小编为大家分享的英语六级听力练习，想了解更多四六级备考课程、备考资讯，请点击文都网校四六级资讯站查询!

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