求助~大牛们来看看og12中的一道题~

audrey007 · 发表于 2011-3-24 18:07:32

60.Redbloodcellsinwhichthemalarial-feverparasiteresidesareeliminatedfromaperson'sbodyafter120 days.
Becausetheparasitecannottraveltoanewgenerationofredbloodcells,anyfeverthatdevelopsinaperson
morethan120 daysafterthatpersonhasmovedtoamalaria-freeregionisnotduetothemalarialparasite.

Whichofthefollowing,iftrue,mostseriouslyweakenstheconclusionabove?

(A)Thefevercausedbythemalarialparasitemayresemblethefevercausedbyfluviruses.
(B)Theanophelesmosquito,whichistheprincipalinsectcarrierofthemalarialparasite,hasbeeneradicated
inmanypartsoftheworld.
(c）Manymalarialsymptomsotherthanthefever,whichcanbesuppressedwithantimalarialmedication,can
reappearwithin120 daysafterthemedicationisdiscontinued.

(D)Insomecases,theparasitethatcausesmalarialfevertravelstocellsofthespleen,whichareless

frequentlyeliminatedfromaperson'sbodythanareredbloodcells.
(E)Inanyregioninfestedwithmalaria-carryingmosquitoes,thereareindividualswhoappeartobeimmune

tomalaria.

我开始做的时候觉得这道题应该用他因做,即存在他因.

迅速看了五个选项,用小威老师的方法,排除模糊词,即c中的many，D中的some，而A，B选项是在不靠谱~

然后选了E，很不明白正确答案D, 仔细看了下，虽然肯定了他因的存在，但是some 不能说明权威性呀~

很郁闷，到底小威老师的这种方法要怎么用哦，求大牛们解惑！！

小女感激不尽！

audrey007 · 发表于 2011-3-24 18:18:23

60. Red blood cells in which the malarial-fever parasite resides are eliminated from a person's body after 120 days. Because the parasite cannot travel to a new generation of red blood cells, any fever that develops in a person more than 120 days after that person has moved to a malaria-free region is not due to the malarial parasite.

Which of the following, if true, most seriously weakens the conclusion above?
(A) The fever caused by the malarial parasite may resemble the fever caused by flu viruses.
(B)The anopheles mosquito, which is the principal insect carrier of the malarial parasite, has been eradicated
in many parts of the world.
(C) Many malarial symptoms other than the fever, which can be suppressed with antimalarial medication, can reappear within 120 days after the medication is discontinued.
(D) In some cases, the parasite that causes malarial fever travels to cells of the spleen, which are less
frequently eliminated from a person's body than are red blood cells.
(E) In any region infested with malaria-carrying mosquitoes, there are individuals who appear to be immune
to malaria.
重新附上题目, 大家分享下自己的见解把~

longyan009 · 发表于 2011-3-24 18:25:22

此题狒狒的讲课里面讲了的，新东方的网络课程里面

小安安要乖 · 发表于 2011-3-24 19:07:43

d项说明了一种可能性，即血红细胞进入其他路径从而导致虐疾
e没有从原文的因果来说明啊

再把原文的推理说一遍，因为淋巴液不能从血红细胞中传递过去，所以虐疾淋巴液不能在人体的血红细胞中存活120天，所以120天后都是其他因素引起的发烧，
这是一个顺的思维链，你只要把其中一个环节打破就可以了，d就是打破了它的前提

cecilia422 · 发表于 2013-2-22 14:26:18

用D选项中的一个some来排除，真心觉得这种方法太冒险了。。
看结论：any fever that develops in a person more than 120 days
就说超过120天的发烧就和malarialparasite没有关系了，所以削弱的时候，只要能说明发烧和malarialparasite就行啦~!
这不就是D项说的嘛，它通过其他途径传染，也是传染阿

E项说的是“就算在有热病源的地方，也有会对热病免疫的人”，而原文讨论的是“去没有热病感染源的地方，120天后再发烧的那群人（那肯定就不免疫了）”，这根本是没有关系的两群人嘛。。
我感觉E项就是很典型的一种迷惑选项，一开始会被绕进去，但是练习多了就能很快排除这种明显是来凑热闹的选项了

求助~大牛们来看看og12中的一道题~

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