题目内容
7.Don't worry about your boy too much.His temperaturewill drop(drop) back to normal if he takes this medicine.分析 不要太担心你的儿子,如果他吃了这药他的体温就会降到正常.
解答 答案:will drop.这里是if引导的条件状语从句,遵循主将从现的规则,从句是he takes this medicine一般现在时,主语用一般将来时will+动词原形,所给单词drop是动词降低,故答案是will drop.
点评 主将从现是指在时间状语从句和条件状语从句和让步状语从句中,如果主句是一般将来时,从句用一般现在时替代一般将来时.主将从现 一、时间状语从句的主句是一般将来时,那么从句常常用一般现在时.
如:When I grow up,I'll be a nurse and look after patients.我长大后要当一名护士,照顾病人.
二、如果主句是祈使句,那么从句通常要用一般现在时
如:Don't laugh at me when I make a mistake.我犯错误的时候不要笑话我.
三、如果主句是含有情态动词的一般现在时,根据需要从句多用一般现在时
如:You should be quiet when you are in the reading room 在阅览室时应保持安静.
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