16. In their native habit, amaryllis plants go dormant when the soil in which they are growing dries out during the dry season. Therefore, if amaryllis plants kept as houseplants are to thrive, water should be withheld from them during part of the year so that the plants go dormant.
Which one of the following is an assumption on which the argument depends?
(A) Most kinds of plants go dormant at some time or other during the year.
(B) Amaryllis are more difficult keep as houseplants than other kinds of plants are.
(C) Water should be withheld from amaryllis plants kept as houseplants during the exact time of year that corresponds to the dry season in their native habitat
(D) Any amaryllis plant that fails to thrive is likely to have been dormant for too short a time.
(E) Going dormant benefits amaryllis plants in their native habitat in some way other than simply preventing death during overly dry periods.
答案： E， 我选C，我认为C就是个bridge 联结论据与结论。
21. Claim: Country X's government lowered tariff barriers because doing so served the interests of powerful foreign companies.
Principle: In order for a change to be explained by the advantage some person or group gained from it, it must be shown how the interests of the person or group played a role in bringing about the change.
Which one of the following, if true, can most logically serve as a premise for an argument that uses the principle to counter the claim?
(A) Foreign companies did benefit when Country X lowered tariff barriers, but consumers in Country X benefited just as much.
(B) In the period since tariff barriers were lowered, price competition among importers has severely limited importers' profits from selling foreign companies' products in Country X.
(C) It was impossible to predict how Country X's economic reforms, which included lowering tariff barriers, would affect the economy in the short term.
(D) Many of the foreign companies that benefited from Country X's lowering tariff barriers compete fiercely among themselves both in Country X and in other markets.
(E) Although foreign companies benefited when Country X lowered tariff barriers, there is no other evidence that these foreign companies induced the change.
21. E正确不用说了.
Principle: In order for a change to be explained by the advantage (some person or group gained from it), it must be shown how the interests of (the person or group) played a role in bringing about the change.
其中 some person or group gained from it 应该指 powerful foreign companies
其中 the person or group 也应该指 powerful foreign companies
