英语考研

cease to do　 长时间，甚至永远停做某事。 cease doing　 短时停止做某事，以后还会接着做。 That department has ceased to exist forever. 那个部门已不复存在。 The g...

regret to do　 对要做的事遗憾。　(未做) regret doing　 对做过的事遗憾、后悔。(已做)I regret to have to do this, but I have no choice. 我很遗憾必须这样去做，我实...

　remember to do 记得去做某事 (未做)　remember doing　记得做过某事　 (已做) Remember to go to the post office after school. 记着放学后去趟邮局。 Don't you remember seein...

　1) 构成will / be going to do sth.　2) 概念　 a. 状态完成：表示某事继续到将来某一时为止一直有的状态。b. 动作完成：表示将来某一时或另一个将来的动...

1)　两个动作如按顺序发生，又不强调先后，或用then，and，but 等连词时，多用一般过去时。 When she saw the mouse，she screamed. My aunt gave me a hat and I lost it. 2 ...

1） 概念：表示过去的过去----|-------|-----|---->其构成是had +过去分词构成。那时以前　 那时　现在 2） 用法　a.　在told, said, knew, heard, thought等动词后的...

1) 用于完成时的区别延续动词表示经验、经历； 瞬间动词表示行为的结 果，不能与表示段的时间状语连用。 He has completed the work.他已完成了那项工作...

　 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 h...

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 clinic since 1...

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 had been late....