It is well known to usthat modern science plays an increasingly important role in our life.
As is known to us,the problem of human population has long been a subject of discussion among the peoples of various countries of the world.
2、In my opinion,the price of a new flat is so high that most people cannot afford it. Even if you want to buy a two-room flat, probably you’ll have to apply for a bank loan.
常用词：
重要的：
key, crucial, imperative critical, important, significant, vital, substantial, indispensable
急剧地：
dramatically，drastically，sharply，hugely，enormously，steeply，substantially，considerably，significantly，surprisingly，strikingly，radically，remarkably，vastly，noticeably
A number of factors account for the phenomenon mentioned above, but the following might be the critical ones.
3).表示建议、措施、好处
1.There are several measures for us to adopt. Firstly, we can do our utmost toarouse people’s awareness.Secondly,… . Thirdly,… .
Only under successful control can we minimize the negative impacts and maximize positive impacts.
段落：
1.引言段常采用的典型句式:
It is commonly accepted/ thought that …
There is a general debate/ discussion/ tendency (these days) that…
There is no consensus of opinions among people as to ....
Recently, there has aroused a controversial/heated debate/contention as to/over…
Not onlymust we be confident of our own future,we must alsobe ready to cope with any sort of setbacks.
Only in this way/under successful control of/under special circumstances/after careful considerationscan we…….（常用于解决问题型的作文）
5、In a word,there is no time to be lost in solving the problem of air pollution.We must take some immediate and effective measures to control it.
6、As far as I am concerned, I prefer to enjoy the city life
3.There are three reasons, I think, forthe growing number of advertisements on TV.(使用插入语)
What is to account for…? In fact the reasons are not difficult to get. First,Second…
e.g.Through carefully weighing in my mind, I am unquestionably inclined to take sides with the latter point of view.Cooperation is of vitalsignificanceon one’s way to grow up.Not only does itextensively help with absorbing a diversity of knowledge and skills, but it alsoenables one to function efficiently in team work.
10.With taking all perspectives into considerations/accounts…
11.Through carefully weighing in my mind the pros and cons of these arguments, I unquestionably/undoubtedly agreeto/side with/prefer/am inclined to take sides with the former (latter) point of view/issue/viewpoint.
7. It is high time that something was done about…
8. It is essential that effective measures be taken to…
9. In short/ In a word/ In conclusion/ In summary/ In brief/ To sum up/ To conclude/ All in all…
We shouldn't ignore the factthat many cities are confronted with the problem of heavy traffic.
No one can have failed to notice the fact that…
2．常见主体句子
1）观点类
3.结尾段常采用的句式：
1、Personally, Iconcludeplanes, the modern means of transportation, have more advantages, and it’s most convenient for us to travel by plane.
3、From what has been mentioned above, we can come to the conclusion thatexamination is necessary, however, its method should be improved.
4、In conclusion,health is more important than wealth. Those who are rich but lose their health are no more fortunate than those who are poor.
3.When asked about/When it comes to/Faced with …most people claim that…, but others regard/consider differently. They argue that…. I am inclined to take the … sors lead/contribute tothe trend of increasing in examination.
2.There are several reasons whysome people prefer to travel by bike,and I would like to explore a few of the most important ones here.
2.To begin with, … Furthermore,…Moreover… Finally…
3.In view of the seriousness of this problem, effective measures must be taken before things get worse. To begin with, it is essential thatlaws and regulations be worked out and enforced to ban the manufacture and circulation of fake goods.Moreover,the public should enhance their awareness of identifying and refusing sub-standard commodities.With these measures taken, it is reasonable for us to believe that the problem will be solved in the near future.
认为：
think, believe, insist, maintain, assert, conclude, deem, hold, argue,, harbor the idea that, take the attitude that, hold the view that, it is widely shared that, it is universally acknowledged that, be firmly convinced, be fully convinced …