1.It’sthe first time that……….(从句中用现在完成时)
　　
　　It wasfor the first time that………(强调句，对状语for the first time进行强调)
　　
　　It’s(high) time that……..(从句中用过去时或should do)
　　
　　2.It’sthe 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. …beabout to do / be doing……when…….正要做/正在做……就在那时…….
　　
　　4.A istwice / three times as +原级+as B A是B的两倍/三倍
　　
　　A istwice / three times the n. of B. A的…是B的两倍/三倍
　　
　　A istwice / three times +比较级+than B A比B多两倍/三倍
　　
　　5.It’s awaste of time / money doing / to do…做……浪费时间/金钱
　　
　　It’s nouse / good doing……… 做……是没有用的
　　
　　It’spossible / probable / (un) likely that………. 很可能……
　　
　　It makesgreat / no sense to do……做某事很有/没意义
　　
　　6. There’sno use / good doing……. 做……没有用
　　
　　There’s no sense / point (in) doing…… 做……没有意义
　　
　　There is no need for sth. / to do……. 没有过必要做……
　　
　　There is (no) possibility that…………(同位语从句)很可能/没可能……
　　
　　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.Itseems / 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 issaid / thought / believed / hoped / supposed …….that sb………
　　
　　=Sb. issaid 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hopesb. 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. Doyou mind if I do sth.? / Would you mind if I did sth.? 你介意我做……吗?
　　
　　14. Thechance 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+that………
　　
　　How /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 isit 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 itcome about that…….?)
　　
　　如:How come you are late again?
　　
　　19. Thereseems / appears / happens to be / must be / can’t be / is (are, was, were) saidto 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 being
　　
　　want /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therebe的非谓语形式;It is said / thought that there is / are……=Thereis / was / are / were said (thought) to be……. 如：
　　
　　Eg: Ihave never dream of there being such a good chance for me.
　　
　　It won’t be cold enough for there to be afrost tonight.
　　
　　20. 疑问词+插入语+陈述语序?
　　
　　Eg: Whodo you think he’ll have attend the meeting?