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?

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)

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；

15.Check / Make sure / See to it　 / See that……..(从句中常用一般现在时) 确信/务必……..

14. The chance is that……../ (The )Chances are that……….很可能…….

13. Do you mind if I do sth.?　 /　 Would you mind if I did sth.?

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)

9.It (so) happened that sb. ……..某人碰巧……..

= Sb. happened to be / to do / to be doing / to have done…..

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……..

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；