求教Prep1-40&41

nikizhangqia

求教大家啊！下周就考试了。。

p1-cr       40.   (32869-!-item-!-188;#058&006461)

Columnist:  People should avoid using a certain artificial fat that has been touted as a resource for those whose medical advisers have advised them to reduce their fat intake.  Although the artificial fat, which can be used in place of fat in food preparation, has none of the negative health effects of fat, it does have a serious drawback:  it absorbs certain essential vitamins, thereby preventing them from being used by the body.

In evaluating the columnist's position, it would be most useful to determine which of the following?

(A) Whether increasing one's intake of the vitamins can compensate for the effects of the artificial fat

(A) Whether increasing one's intake of the vitamins can compensate for the effects of the artificial fat

(B) Whether the vitamins that the artificial fat absorbs are present in foods that contain the fat

(C) Whether having an extremely low fat intake for an extended period can endanger the health

(D) Whether there are any foods that cannot be prepared using the artificial fat as a substitute for other fats

(E) Whether people are generally able to detect differences in taste between foods prepared using the artificial fat and foods that are similar except for the use of other fats

 为什么B不对呢？

 为什么B不对呢？

 

p1-cr       41.   (32917-!-item-!-188;#058&006462)

In the two years following the unification of Germany in 1989, the number of cars owned by residents of East Germany and the total distance traveled by cars in East Germany both increased by about 40 percent.  In those two years, however, the number of East German residents killed each year as car occupants in traffic accidents increased by about 300 percent.

In the two years following the unification of Germany in 1989, the number of cars owned by residents of East Germany and the total distance traveled by cars in East Germany both increased by about 40 percent.  In those two years, however, the number of East German residents killed each year as car occupants in traffic accidents increased by about 300 percent.

Which of the following, if true, most helps to explain the disproportionate increase in traffic fatalities?

(A) The average number of passengers per car was higher in the years before unification than it was in the two years after.

(B) After unification, many people who had been living in East Germany relocated to West Germany.

(C) After unification, a smaller proportion of the cars being purchased by East German residents were used vehicles.

(D) Drivers who had driven little or not at all before 1989 accounted for much of the increase in the total distance traveled by cars.

(E) Over the same two-year period in East Germany, other road users, such as motorcyclists, bicyclists, and pedestrians, experienced only small increases in traffic fatalities.

 为什么A不对呢？

[此贴子已经被作者于2009/10/13 21:40:26编辑过]

nikizhangqia

求问啊求问

quarboy

40. B的意思就是说维生素跟人造脂肪在一个食物里面，这样的话人在脂肪还是会影响人们从其他渠道获取的维生素的吸收，所以对evaluate没有什么帮助。而对于A，如果回答是，那么这个人的argument就被weaken了，如果回答否，那么这个argument就被support了，这个才有助于evaluate。

41. 楼主没有仔细看A选项吧，A说统一前每张车的人数比统一后的两年要多，就是说统一后的每张车的平均乘客减少了，那在车的数量之增长了40%的情况下，怎么会车祸人数增加了300%呢？岂不是更加解释不清了么。

nikizhangqia

啊谢谢解释，豁然开朗＾＾

peter3008

其实41题我觉得这道题目不好
因为选项D是基于一个假设的,就是说drivers都是car occupants,不然是无法解释这个矛盾的~
同理,要是A选项把before换成after,即The average number of passengers per car was higher in the years AFTER unification than it was in the two years before.
我觉得也是对的,因为同样跟正确答案做了一个假设,即passengers in cars  are car occupants

另外补充,选项D也假设了new drivers通常驾驶不如有经验的老drivers,但是这个也是基于假设,根据经验,一般新手开车特别的慢小心,对于小的交通事故,比如说是碰撞,擦到这些new drivers比较多,对于老drivers小的错误比较少,但是也容易疏忽,因为好像对自己比较有信心,容易酒后驾车,疲劳驾车,对于distance traveled 哪个是更安全的驾驶员就需要进一步的数据统计资料的,所以选项D也很weak,既然其他答案都错的那么离谱,只能选这个了

cynthia628

40.原文讨论的结论是，人造脂肪没什么不好，除了会阻碍人体对维他命的吸收。所以原文在讨论人造脂肪的功效问题。
Ａ如果可以通过摄入维生素弥补这一损失，那么人造脂肪就没什么不好了，与原文讨论问题直接相关。
Ｂ因为人们用人造脂肪代替食物中的脂肪，维生素在有人造脂肪的食物里可以被它吸收，在其他食物里也同样可以被它吸收，所以对原文讨论的结论没什么影响。