My family is a happy one which is envied by many people. My father is a doctor who does everything very seriously. And my mother is a actress who is very beautiful. I am a student who is very hard-working. And we have a dog whose name is Lala. I love my family.。
一、以形式主语it引导的句型。
句型1. It happened(chanced) that +clause. = *** . happened /chanced sth. = *** . did sth. by chance. 如： It happened that he was out when I got there. 当我到那儿时，碰巧他不在。 句型2、It seems that *** . do/ be doing/ have done/ had done= Sb. seems to do/ be doing/ have done/ had done 如：（还有动词appear可这样使用） It seemed that he had been to Beijing before.好象你以去过北京。
二、定语从句： 句型1、由as引导的非限定性的定语从句。如： As we have known, he is a most good student.众所周知，他是个很好的学生。
句型2、由which引导的非限定性的定语从句。如： He is a professor, which I have been looking forward to being. 他是个教授，那是我一直盼望的职业。
（因为先行词professor是表示职业的名词，因此引导词用which，而不用who。（注意：关于which和as之间的比较请看语法的定语从句部分。）
三、让步状语从句 句型1、No matter what / which / who / where / when / whose+从句，+主句。注意从句中的时态一般情况用一般现在时态。
如： No matter what you do, you must do it well. 四、条件状语从句 句型1、When / So long as / As long as / Once +从句，+主句。（从句也可以放在主句之后。）
如： As long as you give me some money, I will let you go.只要你给我一些钱，我就让你走。 句型2、主句+on condition that+从句。
如： I will go with you on condition that you give me some money.我和你一起去的条件是你给我一些钱。 句型3、主句+unless+从句.（注意：由于unless本身是否定词，所引导的从句的谓语动词用肯定。）
如： I will go there tomorrow unless it rains.我明天去那儿除非下雨。 五、原因状语从句 句型1、主句+in case+从句。
（in case表示以免）如： I will take my raincoat in case it rains.我要把雨衣带上以免下雨。 句型2、主句+due to / because of / owning to / + the fact that +从句。
如： He did not e to school because of the fact that he was ill.由于他有病了，所以没有来上学。 六、时间状语从句 句型1、When / While / As +从句，+主句。
（关于它们之间的区别请看语法。）如： When I was in the country, I used to carry some water for you.当我在农村时，我常常给你打水。
句型2、主句+after / before +从句. 如： They hadn't been married four months before they were devoiced.他们绘结婚不到四个月就离婚了。 We went home after we had finished the work.我们做完此工作就回家了。
七地点状语从句 句型1、Where +从句，+主句. 如： Where there is no rain, farming is difficult or impossible.哪里没有雨水，种庄稼是很难的或者是不可能的。 句型2、Anywhere / wherever+从句，+主句. 如： Anywhere I go, my wife goes too.无论我去哪儿，我的妻子也去哪儿。
八、目的状语从句 句型1、主句+in order that / so that +从句.如：e true. However, I think it is lucky that I am young now. So I will treasure my time, enjoy my life and try my best to do everything well. From:。