四年级英语上册语法知识总结(共2页).doc

精选优质文档-倾情为你奉上四年级英语上册语法知识总结缩写与完全形式的转换lets = let us whos = who is wheres = where is whats = what is its = it is hes = he is shes = she is Im = I am cant = can not dont = do not isnt = is not arent = are nottheyre = they are doesnt = does not 反义词类big（反义词）small / little short(反义词)tall / longstrong（反义词）weak / thin new（反义词）old / youngfat（反义词）thin