题目内容
3.你最好不要熬夜,这样才能保持健康.Youhad betternot stay up late,so you cankeep healthy.
分析 had better; keep healty.
解答 答案:had better; keep healty.首先是表示最好不要做某事用结构had better (not) do最好(不)做…,第二个空是表示保持健康,用keep healthy系表结构,can是情态动词,后加动词原形,故答案是had better; keep healty.
点评 had better 的基本用法特点
其意为"最好"、"应该",后接动词原形,与情态动词should用法相似,其中的had通常缩略为'd:
You'd better get some sleep.你最好去睡一会儿.
We had better go before it rains.我们最好在下雨前就去.
2.had better 如何构成否定式和疑问式
构成否定式时,通常将not置于had better之后(而不是had之后);而构成疑问式时,则通常将had(而不是had better)置于主语之前:
I'd better not disturb him.我最好别去打扰他.
What had we better do?我们最好怎么办?
【注】在否定疑问句或反意疑问句中可将not与had连用
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