动词时态标志词1.一般现在时(1) always, usually, often, sometimes (2) every day, every morning, every Saturday, every time(3) in the morning, on Saturdays (4) once a week, three times, a day, twice a year 2.一般过去时 （1) yesterday, the day before yesterday, yesterday morning (evening, afternoon)（2) last time, last Friday, last term, last month (3) 2 hours ago, a week ago, 3 years ago（4) just now = a moment ago （5）in 1989（6）at the age of 5, one day, long long ago, once upon a time（7） in the past 3.现在进行时（1）.now.Look.Listen. （2）.these days （3）.at that time.at that moment.this time yesterday evening4.过去进行时 （1）.at that time.at that moment.this time yesterday evening（2）以when引导的谓语动词是一般过去时的时间状语5.一般将来时 (1) tomorrow, the day after tomorrow, tomorrow morning (evening, afternoon) (2) next time, next Friday, next term, next month(3) in +一段时间in + 一段时间 s + time(4) soon = right away = at once (5) by the end of + 将来时间 6.过去将来时 （1）the next time/ Friday/ term/ month （2）the following month (week),7.现在完成时 (1) already, yet, ever, never, just, before(2) for + 一段时间, since + 过去某一点时间 ; since +从句 （一般过去式）；since + 一段时间 + agoin / during the past / last + 一段时间 （3）recently ，lately（4）so far 8.过去完成时（1）.by, by the time (of), by the end of + 过去时间 （2）when. before. after.+过去时间（3）up till then (直到时); up until last night(直到昨晚）等。（4）already, just, ever, yet 等。英语单选常见时态类标志词1. Its the first time that.(从句中用现在完成时)It was for the first time that(强调句，对状语for the first time进行强调)Its (high) time that.(从句中用过去时或should do)2. Its the same with sb. / So it is with sb.表示某人也如此（用于前句中既有肯定又有否定或两个不同类的谓语动词）3.be about to do / be doingwhen.正要做/正在做就在那时.4 A is twice / three times as +原级+as BA is twice / three times the n. of B.A is twice / three times +比较级+than B5. Its a waste of time / money doing / to doIts no use / good doingIts possible / probable / (un) likely that.It makes great / no sense to do做某事很有/没意义6. Theres no use / good doing.Theres no sense / point (in) doingThere is no need for sth. / to do.There is (no) possibility that（同位语从句）7.The+比较级., the+比较级越., 越.注意：前半句为从句，用一般现在时代替将来时；8. It seems / appears ( to sb. ) that sb.在某人看来某人= Sb. seems / appears to be / to do / to be doing / to have done.It seems / looks as if.好象/似乎.9.It (so) happened that sb. .某人碰巧.= Sb. happened to be / to do / to be doing / to have done.10.It is said / thought / believed / hoped / supposed .that sb=Sb. is said to be / to do / to be doing / to have done.(注意：这种句型里如带动词hope则不能变成简单句，因为无hope sb. to do结构)12 .such.that.如此.以致于（引导结果状语从句）.such.as像.的这种(as为关系代词，引导定语从句，在从句里充当主、宾、表)13. Do you mind if I do sth.? / Would you mind if I did sth.?14. The chance is that./ (The )Chances are that.很可能.15.Check / Make sure / See to it / See that.(从句中常用一般现在时) 确信/务必.16. depend on it that.取决于 see to it that.负责/设法做到.注意：除了except / but / in等介词可以直接接that从句，其它介词后必须用it做形式宾语；17 It is / was +介词短语/ 从句/ 名词/代词等+thatHow / When / Where / Why is / was it that.?注意：此句型为强调句，当被强调的为表示人的词时，还可用who连接；强调主语时，从句后的谓语动词应与前面的主语保持一致；注意与定语从句的区别）18 .How is it that.（这几个句型都表示“怎么会.?” “怎么 发生的？”）How come+从句？How does / did sth. come about? ( How did it come about that.?)如:How come you are late again?19. There seems / appears / happens to be / must be / cant be / is (are, was, were) said to be / is (are, was, were) thought to be.表示 “.似乎有/碰巧有/一定有/不可能有/ 据说有/认为有.”介词（如of ）there beingwant / wish / expect there to be要/希望/期待有.adj. / adv. enough for there to be.足够.会有.注意：there being / there to be为there be的非谓语形式；It is said / thought that there is / are=There is / was / are / were said (thought) to be. 如：I have never dream of there being such a good chance for me.It wont be cold enough for there to be a frost tonight.20. 疑问词+插入语+陈述语序？Who do you think hell have attend the meeting?21. But for + n. / pron., sb. / sth. would (not) have done.要不是., 某人早就(表示虚拟语气)=If it had not been for.,./ If there had not been ., .22. It won(t) be long before +从句（从句中用一般现在时）不久/很久就要.It was (not) long before+从句（从句中用一般过去时）不久/很久才.23. Those who.(从句及主句中谓语动词用复数形式).Anyone who= Whoever.(从句及主句中谓语动词用单数形式)24.主句（一般现在时或过去时）.when从句.(might / should do 或might / should have done) 表示”对比”,意思为 “本该(可)而却”,主句中为陈述语气,从句里为虚拟语气,如:Why are you here when you should be in school?你本该上学的怎么在这儿?He stopped trying when he might have succeeded .本该已成功了他却停止努力了.25. There is ./ Sb. have no doubt that(同位语从句,that不可省略)There is / Sb. have some doubt whether.(同位语从句不可用if)Sb. doubt if / whether.Sb. dont doubt that26 . immediately / directly / instantly / the moment +从句on / upon + n. / doingNo sooner had sb. done than .(过去时)Hardly had sb. done when.(过去时)注意：这几个结构都表示“一.就”；27. e