A. Just as every coin has two sides, cars have both advantages and disadvantages．
B. Compared to letters, e-mails are more convenient.
C. Opinions are divided on the advantages and disadvantages of living in the city and in the
D. As we all know, computers have played an important role/part in our daily life.
E. Why do you go to university? Different people have different points of view.
F．With the development of internet… more and more popular…
G. As a student
K. as an old saying goes….
He is very young. he can’t go to school.
He is too young to go to school.
He is very clever. He can work out the problem.
He is so clever that he can work it out the problem.
He is clever enough to work out the problem.
3.not only...but also...
4.It has many advantages . First, 优点1… Besides, 优点2…
5.However, every coin has two sides. It also brings us bad influences. On the one hand, 缺点1… On the other hand, 缺点2…
She not only plays well, but also writes music.
Not only the students but also their teacher is enjoying the film.
4. It is important（easy,hard,possible,good,bad…）for sb. To do sth.
还有rather…than… not…until… as well as…慢慢的补充
first, firstly, second, secondly, third,thirdly, to begin with, to start with, what is more, last, also, and then, next, besides At first; at last; in the end… then/next/after that…
when/while/as soon as/not… until…
in addtion finally On one hand ....on the other hand， each/one coin has two sides，
2)表转折；but, however, though, although, after all, in spite of， fortunately，unfortunately，at the same time…
3)表递近：in addition, besides, moreover, what`s more
4)因果 because, so, because of, thanks to, due to,for, since, owing to, as a result(of), hence, thus
5)例证 for example, for instance, such as
6)表示利弊的：be good/bad for sb.; be harmful to sb.; do harm to sb.; …have great/much influence on sb.; sth. benefit sb.; sb benefit from sth.; affect; have an effect on sb.;
表示喜爱的：love/like/enjoy…; be fond of…; be interested in…; show great interest in…; lose oneself in…; put one’s heart into…;
7)总结 As I see, As for me ，As we all know, in general, generally speaking, I think..., in fact , in a word, in brief, in conclusion, in short, in summary, to sum up,
I will work hard to make my dream come true.
I hope your dream will come true one day.
It takes sb. +时间+to do…
Sb. spend（某种人称时态）+时间/钱+on sth./ (in) doing sth.
It’s important/necessary/useful/useless/common…(for sb.) to v…
It’s nice/kind of sb. to v..
It’s time for sb. to do sth. It’s a waste of time to…
It’s …years/days since sb. +ved
It’s great fun to do=sb. have great fun doing
It’s a pity that… It’s an honor to…
I’m/We’re not allowed to …
I’m afraid of making mistakes… There be …doing…
Great changes have taken place in… sth is/are well worth v-ing.
It seems/seemed that… It seems (im)possible to v… It is said that…
…and …. are different in many ways.
too + adj./adv. to do There are many differences between … and …
写作：随着社会的发展，小汽车越来越普遍，有人说方便，有人说它污染环境等等。请你写一篇作文表达你对小汽车的看法。（pollution n 污染 traffic accident交通事故
convenient adj. 方便的 ）