lsat-5-2-20

huar

20.   In Brazil, side-by-side comparisons of Africanized honeybees and the native honeybees have shown that the Africanized bees are far superior honey producers. Therefore, there is no reason to fear that domestic commercial honey production will decline in the United States if local honeybees are displaced by Africanized honeybees.

Each of the following, if true, would weaken the argument EXCEPT:

这道题的意思是说,在巴西,对两种蜜蜂的仔细的比较得出非洲蜜蜂要比巴西蜜蜂更能生产蜂蜜.因此,没有理由害怕在美国的商业的蜂蜜生产会下降,如果美国的蜜蜂替代为非洲蜜蜂.对吗?我比较困惑domestic commercial honey production 是指美国生产的吧,不是巴西的

(A) The honeybees native to Brazil are not of the same variety as those most frequently used in the commercial beekeeping industry in the United States.

(B) Commercial honey production is far more complicated and expensive with Africanized honeybees than it is with the more docile honeybees common in the United States.

(C) If Africanized honeybees replace local honeybees, certain types of ornamental trees will be less effectively pollinated.

(D) In the United States a significant proportion of the commercial honey supply comes from hobby beekeepers, many of whom are likely to abandon beekeeping with the influx of Africanized bees.（C）

(E) The area of Brazil where the comparative study was done is far better suited to the foraging habits of the Africanized honeybees than are most areas of the United States.

Each of the following, if true, would weaken the argument EXCEPT:

CONCLUSION:不用担心美国会下降

WEAKEN CONCLUSION:要担心美国会下降

WEAKEN CONCLUSION EXCEPT:加强或无关-不担心

我被几个否定词搞得晕头转向了,可否请解释一下该如何思考?思路如何?

lawyer_1

结论是：美国用Africanized honeybees代替local honeybees ， 产量不会下降

推理方式：用巴西的例子类推美国

A。巴西的本地honeybees不同于美国的honeybees-----没类比性

B。用Africanized honeybees的生产太复杂和昂贵-----代替不行

C。某种数采粉效果不好------无关

D。供应主要来源于业余养蜂爱好者，他们很多很可能放弃Africanized honeybees涌入的养蜂业-----代替不好

E。巴西比美国适合Africanized honeybees-----没有可比性

huar

为什么没有可比性的A、E不能算WEAKEN EXCEPT？

lawyer_1

AE要说明的是原文巴西的例子无法作为依据来推出美国的情况，故削弱结论

jiangjinglina

Thanks