【正确答案】 B

【答案解析】[听力原文] 26-28
In 1990，over 100 countries signed an international agreement to make it illegal to buy or sell ivory，which is mainly used for jewelry．Most ivory is made from the tusks of African elephants．These tusks are very Valuable—one pair is worth more than three times that an African farmer or factory worker earns in a year．
[26]Hunting elephants was SO profitable that from 1979 to 1989 the number of elephants in Africa fell from 1.3 million to 600，000．It was feared that by the year 2000 there would be none left．However，since 1990there has been much less illegal hunting．thanks to the international agreement．
[27]But it costs a lot of money to preserve elephants．Game wardens must be hired to protect them，land must be set aside for them，and when they destroy a farmer’s crops，the farmer must be paid compensation．
Zimbabwe and four other African countries say that some of the elephants should be killed legally．[28] This would help keep the population stable，and selling the ivory would help pay for preserving the elephants．But conservationists say that making ivory legal to sell would lead to even more illegal hunting．Others say that it is wrong to kill elephants because they are sensitive animals who feel emotional pain at the death of other elephants．
26．What happened to the African elephants from 1979 to 19897

[解题思路]
1．四项均含有elephants。
2．两项含有与捕猎有关的词汇(hunting，hunted)。
[结论] 本题很可能考查与捕猎大象有关的内容。听音重点为illegal hunting、number of elephants、African farmers or factory workers和jewelry。
[解析] 题目问的是从1979年到1989年，非洲象发生了什么事。文章中提到，捕猎大象利润非常丰厚，以致从1979年到1989年，非洲象的数量由130万头锐减到60万头。B项是对这一内容的同义转述，故为正确答案。

【正确答案】 C

【答案解析】[听力原文]
Which of the following is NOT a problem caused by elephant preservation?
[解题思路]
1．两项含有farmers。
2．两项含有与土地或庄稼相关的词(land，crops)。
[结论] 结合上题分析可知，本题很可能考查大象与农民或土地的关系。听音重点为money、land、hired和crops。
[解析] 题目问哪一项不是由保护大象而引起的问题。文中提到，保护大象需要花费很多钱，既要雇用看守人来对其进行保护，又要给它们预留出土地，而且，当农民的庄稼遭到大象破坏时，还要对农民的损失进行赔偿。四项中，C项“需要雇佣农民”偷换了概念，故为正确答案。

【正确答案】 A

【答案解析】[听力原文]
Why do several African countries advocate legally killing some of the elephants?
[解题思路]
1．四项均为不定式短语，表示某种目的或意图。
2．四项均含有表示积极意义的动词(stabilize，protect，relieve，improve)。
[结论] 本题很可能考查做某事的积极目的或意图。听音重点为elephant population、environment、burden以及international agreement。
[解析] 本题问为什么一些非洲国家倡导合法捕杀一些大象。文章最后提到，一些非洲国家认为应该合法捕杀一些大象，这样可以控制大象的数量，而且卖象牙获取的资金还可以用来保护大象，四项中只有A项与这一意思一致，故为正确答案。其他三项文中均未提及，故排除。