题目内容
19．We should plant more trees ______ our environment．（ ）| A． | protect | B． | to protect | C． | protecting | D． | protected |
分析 我们应该种更多的树来保护我们的环境．
解答 答案：B．根据We should plant more trees ______ our environment，可知这里考查了to引导的动词不定式作目的状语的用法．故选B．
点评 本题考查了动词不定式的用法．熟知句意是解答本题的关键．
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