GRE阅读 | 不要这样背单词

在学生时代，背单词或者查生词的时候，我总喜欢只看第一个意思，也不管词性，也不管这个单词究竟还有多少意思，反正就只看第一个。

然后，天真地以为会了第一个意思，就会了这个单词。而一到考试，碰到的单词，就总是“最熟悉的陌生人”：单词都背过，意思就是对不上。

所以，今天我要和大家强调的一个问题就是，背单词一定要全面。要识别这个单词有几个词性，每个词性都有什么意思。

①Our terrestrial food supply comes from ecosystems transformed to produce a few comestible species through the removal of competitors, predators, and pests, but marine capture fisheries depend on the overall productivity of natural ecosystems. ②There is, however, increasing concern about the impact of fishing and other human activities on marine ecosystems, which are now far from pristine. ③One option for moving toward both biodiversity and terrestrial food supply goals is to produce greater yields from less land, thereby freeing land for conservation purposes. ④By contrast, the objective of maintaining or resorting the biodiversity of marine ecosystems may conflict with the objective of maintaining or increasing our food supply from the sea, since the level of fishing required to achieve the latter may compromise the former.

2. According to the passage, increasing the food yield per unit of land can have which of the following effects?

A. enabling more land to be used for development purposes

B. compromising progress toward conservation goals

C. helping protect comestible species from competition and predation

D. helping reduce pressure on marine ecosystems

E. helping restore the biodiversity of terrestrial ecosystems

-误区-

这道题，通过题干的定位，相信大家都能找到第三句，然后从定位句可知freeing land for conservation purposes就是题干中所说的effects，哇这个影响不就是节约出土地来起到保护的目的吗？

选B，因为这样做的目的就是为了向保护的目的妥协啊。没问题，结果就选了。