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 th
比较since和forSince 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 worke
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+ agoI hav
延续动词与瞬间动词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.
过去完成时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等动词后的宾语从句。She
过去完成时典型例题The students ___ busily when Miss Brown went to get a book she ___ in the office.A. had written, left B. were writing, has left C. had written, had left D. were writing,
这个周末你有空吗?Are you free this weekend?我们还可以再见面吗?Could I see you again?能给我你的电话号码吗?Could you give me your phone number?我们在哪儿见面?Where shal
准备好了吗?Are you ready?=Ready yet?=Are you all set?准备好了。Ready.=I’m ready.=I’m all set.还没准备好呢。I’m not ready.我们什么时候出发?What time shall we leave? =What
一起去喝酒去喝一杯怎么样?How about a drink?Answer: That’s a great idea. (好主意。)我想去喝一杯。I need a drink.下班以后去喝一杯怎么样?Would you like to have a drink
用叫医生吗?Do you need a doctor?=Do you want me to get a doctor?=Do you need any help?Answer: Yes, I think so. (是的，请叫医生吧。)请叫救护车。Please call an ambulance. =We need an