八、used to , had better, would rather 的用法比较：

①used to 表示过去的习惯动作或状态，现在已不存在，其否定陈述句和否定疑问中，一般用 didn't use to 均可；而且，used to 还可与 never, often, always 等连用。注意：used to 与 be used to 的不同，后者表示 be accustomed to “习惯于某种状态” ， 如：

He used to drink.表示“他过去经常喝酒”而现在不喝了。

He is used to wine (He is used to drinking wine) at eachmeal. 表示“他现在已养成习惯，每顿饭喝点葡萄酒。”

②had better 表示“最好⋯⋯”，后接动词原形，其否定式在后边为 had better not+动词原形，如：You had better not follow his behavior.你最好不要学他。

③would rather 意思是“宁愿”，表示选择，肯定句后直接跟动词原形，其否定句是 would 后加 not, 即 would not rather+动词原形；由于 would rather 表示选择，其后可路 than, 如：She would rather go home.她宁愿回家。/Susan wouldn't rather stay here with him.苏珊不愿和他在这儿呆着。/She would rather sleep than talk rubbish.她宁愿睡觉不愿闲聊。