1.According to paragraph 1, what distinguishes reinforcement from reintroduction of animal species?
A. Only reinforcement involves capturing wild individuals.
B. Only reinforcement involves adding individuals to an existing population.
C. Only reinforcement requires the use of conspecifics.
D. Only reinforcement can help once a population is extinct.
你的答案：正确答案：B
题目解析：
本题需要通读第一段。根据第一段第三句可以得知，第一句是reintroduction的定义，第二句是reinforcement的定义。reintroduce指的是把一个物种迁移到另一个地区，reinforcement指的是给一个原有物种已经灭绝或者还没灭绝的时候引入另一个物种群。对于选项A和C，文章第一段最后一句说明捕捉动物和conspecifics这个概念是两者都有的，选项D根据两者的定义，它们都可以帮助物种灭绝的地区。只有选项B说的reinforcement涉及到在原有物种的基础上引进新物种正确。选择B。
2.The word "efficacy" in the passage is closest in meaning to
A. effectiveness
B. advantage
C. motivation
D. necessity
你的答案：正确答案：A
题目解析：
本句根据所考察的单词定位到原文中这一句：The number of translocations carried out under the banner of conservation has increased rapidly, and this has led to criticism of the technique because of the lack of evaluation of its efficacy and because of its potential disadvantages. 本句主干的意思是：以保护为名的物种迁移越来越多，这就导致人们批评迁移技术缺少效果的评估以及可能含有潜在危险。efficacy在这里的意思是效果。选项A的意思是效果，选项B的意思是好处，选项C的意思是动机，选项D的意思是必要性。选项A最贴合efficacy的意思。选择A。
3.Paragraph 2 indicates all of the following about species translocation EXCEPT:
A. It was used to secure food sources before it was used for conservation purposes.
B. Its disadvantages have led to a decline in its use for conservation purposes.
C. It has been used successfully on a wide range of plants and animals.
D. The way in which it is carried out varies greatly.
你的答案：正确答案：B
题目解析：
本题的出题点分布在第三段的前半部分。选项A的依据是and was carried out to maintain populations as a source of food long，正确;选项B的依据是The number of translocations carried out under the banner of conservation has increased rapidly，对于translocation的使用是增加了而不是减少了，选项B错误;选项C是根据Direct translocation has been used a wide range of plants and animals，这个技术的确被广泛运用了;选项D是根据The nature of translocation ranges from highly organized and researched national or international programs to as hoc releases of rescued animals by well- intentioned animal lovers，translocation的确有各种各样的形式方法，选项D正确。
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