题目内容
15．The illegal ivory trade （象牙贸易） has been a major problem in Africa for decades．Poachers （偷猎者） and hunters have killed hundreds of thousands of elephants to obtain this precious material．Now the areas in which they do it are taking action．The International Union for Conservation （保护） of Nature （IUCN）announced on Dec 3that key states （29）where poaching takes place have made a promise to stop the ivory trade and protect Africa's elephants．Recently，top officials and experts from 30states met to discuss how to protect Africa elephants．The conference，（30）organized （organize） by the IUCN and the government of Botswana，was held in Gaborone，Botswana's capital city．
In （31）the1980s，as many as 1million elephants across Africa were killed for ivory．The ivory （32）was used （use） to make jewelry and other items．This continued until 1989，（33）when the convention （大会） on International Trade in Species voted to ban all trade in ivory．Then，elephants'population slowly began to increase．
According to the IUCN，2011saw the highest levels of poaching and illegal ivory trading in at least 16years．Around 25，000elephants were killed in Africa that year．"With an estimated 22，000elephants illegally （34）killed （kill） in 2012，we continue to face a critical situation，"said John E．Scanlon，CITES Secretary-General．
At the meeting，key Africa states where elephants make （35）their home agreed to develop a"zero-tolerance approach"to poaching．The deal calls for tough sentences for poachers and hunters，and increased cooperation between states where poaching and hunting is a big problem．All participants at the conference agreed to sign the deal．With these states （36）coming （come） together，there may be hope for elephants．
分析 本文主要讲述的是国际自然与自然资源保护联合会通过的一项协议，要求对于象牙贸易零容忍，要求保护非洲大象．
解答 29．where；考查定语从句，先行词states在从句中充当地点状语，因此使用where引导．
30．organized；考查非谓语，句子谓语动词是was held，organize应使用其非谓语形式，与其逻辑主语The conference构成被动的关系，因此使用过去分词形式．
31．the；考查冠词，表示"在…年代"使用定冠词the．
32．was used；考查时态和语态，句子表示的是过去的事情，因此使用一般过去时，use与主语The ivory构成被动的关系，因此使用was used．
33．when；考查定语从句，句子先行词 1989，在从句中充当时间状语，因此使用when引导．
34．killed；考查with的复合结构，句中包含with+宾语+宾语补足语，kill与宾语elephants构成被动的关系，因此使用过去分词充当宾语补足语．
35．their；考查代词，此处表示"大象的家"使用形容词性物主代词their．
36．coming；考查with的复合结构，句中包含with+宾语+宾语补足语，come与宾语states构成主动的关系，因此使用现在分词充当宾语补足语．
点评 对于语法填空这类题，一是懂得分析句子结构，二是知道充当各个句子成分的词类或词性，从语法上确定答案，当然，对于某些固定搭配也要牢记，在平时的学习中要多积累这些词汇或短语，对于句子使用的时态语态也要通过语境进行确定．
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