六、表示必须、紧急、有困难做某事的句型:
　　1. It is important （necessary, urgent, difficult, easy, convenient, comfortable, expensive, desirable, advisable） for sb. to do sth.
　　2. It is inevitable that the natural resources throughout the world are diminishing as the demand for them 在不断增长.
　　　不可避免的是，
　　3. It is obvious that the strength of a country’s economy 直接相关the efficiency of its industry and agriculture.
　　　显然，
　　4. It is urgent for the government to take measures to control the birth rate in our country/ to 把沙漠变为良田.
　　　政府迫在眉睫的是
　　5. It is necessary for us to build more hospitals, shopping centers, recreation centers, cinemas, and other public facilities to 满足the increasing needs of the people. 我们必须建立
　　6. have trouble/ difficulty/ a hard time/ a difficult time （in） doing sth（有困难做某事）
　　　他很难找到一份满意的工作。 He has trouble finding a satisfactory job. have trouble with sth.（对...有困难,不好对付）I have some trouble with my English study.

七、常用谚语 （在议论文中）:
　　1. 常言道，“事物总是一分为二的。” As a popular saying goes, "Every coin has two sides".
　　2. As a proverb says, "Everything has two sides". On the one hand, physical exercise is good for your health. On the other hand, if you don't deal with it properly, it will do harm to your health. So we should look at the matter from two sides.
　　3. As a proverb says, " Where there is a will there is a way." （有志者事竟成。）
　　4. As a popular saying goes, "A man is known by the company he keeps." （观其交友，知其为人。）
　　5. As is known to all, "No pains, no gains". （没有苦，就没有甜。）
　　6. It’s no use crying over the spilt milk. （覆水难收。）
　　7. More haste, less speed. （欲速者不达。）
　　8. Look before you leap. （三思而后行。）
　　9. He who laughs last laughs best. （谁最后笑，谁笑得最好。）

八、辩论中常用的句型:
　　1. There is no doubt that ... 译：毫无疑问the rapid increase in population 促使 the sharp decrease in the species of wild animals.
　　2. It is obvious/clear that 爱心是一盏灯, 越黑暗的地方, 它越明亮。
　　3. 众所周知，中国一贯主张, 国家不管大小, 应该一律平等。As is known to all, China always maintains that all nations should be equal, be they large or small.
　　4.（It's） no wonder ... （难怪） 译：他不努力工作, 难怪他丢了工作。
　　5. It goes without saying that ... （ 不成问题, 很自然 ） ：很自然，健康的人比病人幸福。It goes without saying that healthy people are much happier than sick ones.
　　6. What is more important, we should 保持 ecological balance.
　　7. I am convinced that only if our society is full of love, tomorrow will be much better and brighter.
　　8. It is no exaggeration to say … 可以毫不夸张地说，…

九、举例表示法:
　　1. For example,/ For instance,the people's economic status has been greatly improved.
　　2. A case in point is that the economic status of the people has been improved.
　　3. Let's have an example. TV sets, refrigerators and recorders have become household necessities.