题目内容
11．What can we students do _____ the environment？（ ）| A． | to protect | B． | protected | C． | protecting |
分析 为了保护环境，我们学生能做些什么？
解答 答案：A．考查不定式．句意"为了保护环境，我们学生能做些什么？"．A不定式．B过去式．C动名词/现在分词．可知此处应用动词不定式作目的状语．选A．
点评 考查不定式．此类型题只要分清不定式，过去分词，现在分词的在句中的区别就很容易解答了．具体区别：不定式表示具体的将要发生的动作．过去分词表示被动的发生过的动作．现在分词表示正在进行的动作．
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| 36．A．but | B．because | C．since | D．or |
| 37．A．ever | B．nearly | C．never | D．often |
| 38．A．pass | B．drop | C．carry | D．take |
| 39．A．problem | B．mistake | C．case | D．question |
| 40．A．during | B．after | C．over | D．before |
| 41．A．rest | B．break | C．walk | D．stop |
| 42．A．visit | B．meet | C．catch | D．greet |
| 43．A．happiness | B．anger | C．surprise | D．kindness |
| 44．A．lonely | B．empty | C．noisy | D．crowded |
| 45．A．wouldn't | B．shouldn't | C．couldn't | D．needn't |
| 46．A．make | B．fix | C．use | D．pick |
| 47．A．If | B．When | C．Though | D．Until |
| 48．A．Come | B．Help | C．Hello | D．Sorry |
| 49．A．watch | B．play | C．read | D．write |
| 50．A．cool | B．strange | C．nice | D．bad． |