题目内容
8．He promised （答应） to do as much as he couldto help （help） protect wetlands．分析 他承诺尽他所能帮助保护湿地．
解答 答案：to help 考查单词填空．根据题干：as much as he could 作定语，要用不定式做目的状语，故答案是 to help．
点评 解答此题的关键是根据语境推测要填内容表达的含义，然后能理解各选项内容，有时可能没有必要细细区分每个单词的含义，仅根据句子语气就可以判断出正确答案．
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