英语to的用法.1.He needs to drink some more water.drink 前面为什么加to?2

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/15 05:43:33

英语to的用法.
1.He needs to drink some more water.drink 前面为什么加to?2.You should eat less food to keep thin.keep前面为什么加to?
need to do sth 是固定用法吗？

第一句是因为两个动作need,drink出现在同一个句子中,后者采用了动词不定式的形式,俗称连动的动作或者用动词不定式形式,例如：want to do sth,类似的用法还有determine; learn; hope/ wish/ expect；agree; plan; pre...
再问：一般什么时候用动词不定式？
再答： He hoped to visit China again. 动词后面表示连动的动作做宾语 I have a letter to write. 放某名词后表“要做的”做定语 To learn about the universe, you need to have a telescope.放到句子开头和结尾或中间表目的，做目的状语 His wish is to become a pop singer. 放系动词后做表语 It took a lot of time to finish the report. it做形式主语to do 做真正主语 Mother wants me to bring some water. 放某些动词后做宾补，如：做want的宾补

英语to的用法.1.He needs to drink some more water.drink 前面为什么加to?2 he would like to drink some water 1.remember,some,water,drink,to(.) Before -------(go) to bed,he needs ----(drink) some milk. give him some water to drink 为什么有个to Ben is [t ].He wants to drink some water. I want to drink some water.当中为什么要用to drink I would like to drink some water . I need some (much) water to drink. he wants to drink water同义句 1.—Would you like to drink some water? man needs water to drink,i want something to drink.would you