问一道阅读36套的题. Exercise19.4

幻づ风UID: 3357261

4. Which of the following most logically completes the argument?
Alivia‘s government has approved funds for an electricity-generation project based on the construction of a pipeline that will carry water from Lake Cylus, in the mountains, to the much smaller Lake Tifele, in a nearby valley. The amount of electricity generated will be insufficient by itself to justify the project‘s cost, even if the price of imported oil-Alivia‘s primary source of electricity-increases sharply. Nonetheless, the pipeline project is worth its cost, because ——

(B) the project could restore Lake Tifele, which is currently at risk of drying up and thus of being lost as a source of recreation income for Alivia

(D) it would cost less to generate electricity by moving water from Lake Cylus to lake Tifele than to do so by moving water from Lake Cylus to another valley lake
看到两个版本的答案了...也不知道哪个对，自己当时迷迷糊糊的也没做出来，希望好心人能帮忙解释下!多谢了！

alexl39UID: 2940293

B.
project能restore那个lake，restore了之后避免了recreation income的损失，便能justify那个project的costs

crazyrobinUID: 2368627

楼上正解
这题就是justify the conclusion

幻づ风UID: 3357261

alexl39 发表于 2013-8-9 23:20
B.
project能restore那个lake，restore了之后避免了recreation income的损失，便能justify那个project的co ...

嗯，我觉得B也对。但是话说为什么D是错的呢？能再解释下不？

幻づ风UID: 3357261

crazyrobin 发表于 2013-8-9 23:23
楼上正解
这题就是justify the conclusion

同楼上，为什么D不对呢？求解释下~多谢了！

dula55UID: 3454251

幻づ风 发表于 2013-8-10 21:51
同楼上，为什么D不对呢？求解释下~多谢了！

D只是把提案里的湖与另一个湖比较，尽管花钱比那个湖少，但是无法说明任何问题。属于 Out of scope.

幻づ风UID: 3357261

dula55 发表于 2013-8-10 22:53
D只是把提案里的湖与另一个湖比较，尽管花钱比那个湖少，但是无法说明任何问题。属于 Out of scope.

是因为这么比较没有表明任何结果是么？？

alexl39UID: 2940293

幻づ风 发表于 2013-8-10 21:51
嗯，我觉得B也对。但是话说为什么D是错的呢？能再解释下不？

这个比较完全是irrelevant。
就像你考试考了55分没及格，但是你考的比你同桌高，你同桌只有50分。但是你比你同桌高不说明任何问题，你还是没及格。
这道题里，要解释为什么pipeline project is worth its cost，只是比别的湖赔的钱少，但赔钱还是赔钱。

幻づ风UID: 3357261

alexl39 发表于 2013-8-10 23:37
这个比较完全是irrelevant。
就像你考试考了55分没及格，但是你考的比你同桌高，你同桌只有50分。但是你 ...

soga~~懂了！非常感谢！