题目内容
3．早睡早起，保健康．If you want to keep fit，please sleep andgetupearly．
分析 get up．
解答 答案：get up．这里是一个if引导的条件状语从句，主句是祈使句，please后加上动词原形，起床get up，故答案是get up．
点评 if所引导的条件状语从句，若主句是祈使句，从句也要用一般现在时代替一般将来时．
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