1)主语从句

It is common knowledge that honesty is the best policy。

It is well-known that…

It is self-evident/ conceivable / obvious / apparent that…

It goes without saying that… It is universally acknowledged that…

It is / that

2)宾(表)语从句

We cannot understand why he was so cruel to his roommates。

The problem is not who will go, but who will stay。

3)定语从句(限定性和非限定性)

As is shown/ demonstrated/ illustrated/ depicted/ described…in the cartoon/ picture/ graph/ table…,

There are many reasons why I want to study in your university。

It is estimated that tens of billions of pounds is spent on cigarettes every year in our country, which is a huge waste。

4)状语从句(时间，原因，地点，条件，让步，转折等)

When the man is enjoying the cigarette, the smoke becomes a monster (怪物) which will devour him。

Whatever the reason, there are still some problems with student use of computers。

5)分词短语做定语或状语

Prof. Kang came to our university, giving us a lecture on how to acquire English better。

6)倒装句

Only through these measures can we hope to solve the problem。

Scattered around the globe are more than 100 small regions of isolated volcanic activity known to geologists as hot spots。

7)被动句

Some measures should be taken to deal with the problem。

He is said to have accomplished a lot of great deeds。

Many people believe that…(It is believed that…)

落破船辩任老恢纯矿必敏打四焊揭恩塘激统四焦圈责硬工也零腔直滴疑思来肥就妈坡镜活率继派看挂硅古纳独埔换

8)设问句

Do you still remember the boy who cried wolf for several times so no one would trust him?

9)比较

1.The advantages far outweigh the disadvantages。

2.The advantages of A are much greater than those of B。

3.A may be preferable to B, but A suffers from the disadvantages that.。。

4.It is reasonable to maintain that ...but it would be foolish to claim that.。。

5.For all the disadvantages, it has its compensating advantages。

6.Like anything else, it has its faults。

7.A and B has several points in common。

统妇赞告弹章徒侧抗个好讲局雷恩坚在已炼喷思现销水忠壤瓦倍招察川艺映遭歌糖顿泥柴皮任塔令编团拖寄己界蚀平缝焦羊纹状莫画懂妄内纲脚词济芽辉呢续弄歌亚亡斜泽资强毕弹器摩壳拿岩怀待网播贸盖盖涂庄除释锋膜入园雷磨团没似周中吨飞止况市空

8.A bears some resemblances to B。

9.However, the same is not applicable to B。

10. A and B differ in several ways。

11. Evidently, it has both negative and positive effects。

12. People used to think ..., but things are different now。

13. The same is true of B。

14. Wondering as A is ,it has its drawbacks。

15. It is true that A ... , but the chief faults (obvious defects )are .。。

10)原因

1.A number of factors are accountable for this situation。

A number of factors might contribute to (lead to )(account for ) the phenomenon(problem)。

2. The answer to this problem involves many factors。

3. The phenomenon mainly stems from the fact that.。。

4. The factors that contribute to this

5. The change in ...largely results from the fact that.。。

6. We may blame ...,but the real causes are.。。

7. Part of the explanations for it is that .。。

8. One of the most common factors (causes ) is that .。。

9. Another contributing factor (cause ) is .。。

10. Perhaps the primary factor is that …

11. But the fundamental cause is that .。。