小学英语语法知识点：不用进行时的动词 1) 事实状态的动词 have， belong， possess， cost， owe， exist， include， contain， matter， weigh， measure， continue I have two brothers. This house belongs t
小学英语语法知识点：since的四种用法 1) since +过去一个时间点(如具体的年、月、日期、钟点、1980， last month， half past six)。 I have been here since 1989. 2) since +一段时间+ ago I have been here sin
小学英语语法知识点：比较since和for Since 用来说明动作起始时间，for用来说明动作延续时间长度。 I have lived here for more than twenty years. I have lived here since I was born.. My aunt has worked in a
小学英语语法知识点：用于现在完成时的句型 1）It is the first / second time . that 结构中的从句部分，用现在完成时。 It is the first time that I have visited the city. It was the third time that the boy
小学英语语法知识点：be to和be going to be to 表示客观安排或受人指示而做某事。 be going to 表示主观的打算或计划。 I am to play football tomorrow afternoon. (客观安排) I m going to play football tomorr
小学英语语法知识点：be going to / will 用于条件句时， be going to 表将来 will 表意愿 If you are going to make a journey， you d better get ready for it as soon as possible. Now if you will take off
小学英语语法知识点：used to / be used to used to + do： 过去常常 表示过去习惯性的动作或状态，但如今已不存在。 Mother used not to be so forgetful. Scarf used to take a walk.(过去常常散步) be used to +
小学英语语法知识点：分词作状语 As I didn t receive any letter from him， I gave him a call. - Not receiving any letter from him， I gave him a call. 由于没有收到他的信，我给他打了电话。 If more atte
小学英语语法知识点：begin(start) doing/to do begin / start to do sth begin / start doing sth. 1)谈及一项长期活动或开始一种习惯时，使用doing. How old were you when you first started playing the piano
小学英语语法知识点：mean to doing/to do mean to do 打算、想 mean doing意味着 例句 I mean to go， but my father would not allow me to. 我想去，但是我父亲不肯让我去。 To raise wage means increasing pur
小学英语语法知识点：be interested doing/to do interested to do 对做某事感兴趣，想了解某事。 interested in doing 对某种想法感兴趣，doing 通常为想法。 例句 I shall be interested to know what happens.
