逻辑单题分析

oceannUID: 3637087

Epidemiologist: Malaria passes into the human population when a mosquito carrying the malaria protozoa bites a human who has no immunity. The malaria parasite can remain for up to forty days in the blood of an infected person. The disease cannot be passed from person to person, unless a non-infected person is exposed to the blood of an infected person. Theoretically, malaria could be eradicated in any given area, if all the mosquitoes carrying malaria in that area are exterminated. If such a course of action is carried out at a worldwide level, then the global eradication of malaria is possible.

Which of the following, if true, suggests that the epidemiologist’s plan for eliminating malaria is not viable?
A) A person who is infected with malaria can infect a mosquito that is not carrying malaria, if that mosquito bites such a person.
B) Unless a mosquito bites an infected person, and then bites a non-infected person, malaria cannot be passed directly from human to human.
C) Malaria is still endemic in many parts of the world, and many health workers believe that the global eradication of malaria is not possible.
D) Some people in areas where malaria is rife have developed an immunity to mosquitos, yet they are also show a higher incidence of genetic disorders such as sickle-cell anemia.
E) Mosquitos in many developing parts of the world are responsible for passing on a variety of viruses to human hosts.

逻辑单题，先看题目-- weaken 题
第一步： 找出core argument
所以core argument是 除去带有malaria的蚊子，那么malaria就会被globally 消除。
A. 对。之前错是因为看文章时忽略了mosquitos carrying malaria
B. a mosquito没说是carrying or not carrying malaria. 不明确
C. 其他人认为不能消除，not relevant; 之前选C，因为其他不知道，所以随便选了
D. irrelevant
E. irrelevant

oceannUID: 3637087

In 1998 the United States Department of Transportation received nearly 10,000 consumer complaints about airlines; in 1999 it received over 20,000. Moreover, the number of complaints per 100,000 passengers also more than doubled. In both years the vast majority of complaints concerned flight delays, cancellations, mishandled baggage, and customer service. Clearly, therefore, despite the United States airline industry’s serious efforts to improve performance in these areas, passenger dissatisfaction with airline service increased significantly in 1999.

Which of the following, if true, most seriously weakens the argument?
A. Although the percentage of flights that arrived on time dropped slightly overall, from 77 percent in 1998 to 76 percent in 1999, some United States airlines’ 1999 on-time rate was actually better than their 1998 on-time rate

B. The number of passengers flying on United States airlines was significantly higher in 1999 than in 1998.

C. Fewer bags per 1,000 passengers flying on United States airlines were lost or delayed in 1999 than in 1998.

D. The appearance in 1999 of many new Internet sites that relay complaints directly to the Department of Transportation has made filing a complaint about airlines much easier for consumers than ever before.

E. Although the number of consumer complaints increased for every major United States airline in 1999, for some airlines the extent of the increase was substantial, whereas for others it was extremely small.


逻辑链: 1998 10k -- 1999 20k投诉 -- complaints per 10k 乘客也double了 -- 两年中投诉都是关于xxx -- 所以，尽管尝试改善，1999年passenger不满度还是上升很多。

题目: weaken，那就是要找其他可能性
A. overall  准点率降了 -- strengthen
B. 乘客变多，但第二句 complnts per 10k也变多，所以无关
C. 减少了失误，但不起作用
D. 新网站导致投诉变得同意 -- Weaken -- 因为投诉容易， 所以更多人投诉
E. 无关

错因，错选B。漏看第二句，而且自己主观印象作祟导致忽略C. 不要带主观印象，而是看实际文章