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GRE阅读模拟在线练习附答案一百零九

2018-08-02 14:28:00来源：网络

　　备考GRE阅读的过程中，很多同学都在寻找备考资料。其中最好的复习资料就是练习题，通过不断的模拟练习，可以让大家更好地寻找到自己在GRE阅读备考中的不足。因此，新东方在线GRE频道为大家整理部分练习题，供大家参考。

点击查看》》》【GRE阅读真题在线练习附答案汇总】

　　Ragwort was accidentally introduced to New Zealand in the late nineteenth century and, like so many invading foreign species, quickly became a pest. By the 1920s, the weed was rampant. What made matters worse was that its proliferation coincided with sweeping changes in agriculture and a massive shift from sheep farming to dairying.

　　Ragwort contains a battery of toxic and resilient alkaloids: even honey made from its flowers contains the poison in dilute form. Livestock generally avoid grazing where ragwort is growing, but they will do so once it displaces grass and clover in their pasture. Though sheep can eat it for months before showing any signs of illness, if cattle eat it they sicken quickly, and fatality can even result.

　　The passage suggests that the proliferation of ragwort was particularly ill-timed because it

　　A.coincided with and exacerbated a decline in agriculture

　　B.took place in conditions that enabled the ragwort to spread faster than it otherwise would have done

　　C.led to an increase in the amount of toxic compounds contained in the plants

　　D.prevented people from producing honey that could be eaten safely

　　E.had consequences for livestock that were more dramatic than they otherwise would have been

　　The passage implies which of the following about the problems ragwort poses to dairy farmers?

　　A.Milk produced by cows that eat ragwort causes illness in humans who drink it.

　　B.Ragwort can supplant the plants normally eaten by cattle.

　　C.Cattle, unlike sheep, are unable to differentiate between ragwort and healthy grazing.

　　正确答案:E B

　　以上就是关于“GRE阅读模拟在线练习附答案一百零九”的内容，更多精彩内容，请关注GRE频道!


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