4.表示重要、必要、困难、方便、可能
1)It is importantfor sb.to do sth.
2)We think it necessary to do sth.
3)It plays an important role in our life.
例如:
Computers are now being used everywhere,whether in the government,in schools or in business.Soon, computers will be found in every home,too.We have good reason to say that computers are playing an increasingly important role in our life and we have stepped into the Computer Age.
5.表示措施
1)We should take some effective measures.
2)We should try our best to overcomethe difficulties.
3)We should do our utmost in doing sth.
4)We should solve the problems that we are confrontedwith.
例如:
The housing problem that we are confronted with is becoming more and more serious.Therefore,we must take some effective measures to solve it.
6.表示变化
1)Some changes have taken place in the past five years.
2)A great change will certainly be produced in the worlds communications.
3)The computer has brought about many changes in education.
例如:
Some changes have taken place in peoples diet in the past five years.The major reasons for these changes are not far to seek.Nowadays,more and more people are switching from grain to meat for protein,and from fruit and vegetable to milk for vitamins.
7.表示事实、现状
1)We cannot ignore the fact that...
2)No one can deny the fact that...
3)There is no denying the fact that...
4)This is a phenomenon that many people are interested in.
5)However,thats not thecase.
例如:
We cannot ignore the fact that industrialization brings with it the problems of pollution.To solve these problems, we can start by educating the public about the hazards of pollution.The government on its part should also design stricter laws to promote a cleaner environment.
[动词不定式]不定式的特殊句型too…to…
[分词]分词的语态
[独立主格]with的复合结构作独立主格
[动词的时态] used to / be used to
[分词]分词作定语
[动词的时态]be to和be going to
[动词]助动词have的用法
[动词不定式]不定式作主语
[特殊词精讲]begin(start) doing/to do
[特殊词精讲]be afraid doing/to do
[特殊词精讲]be interested doing/to do
[冠词和数词]冠词与形容词+名词结构
[独立主格]独立主格
[分词]分词
[动词不定式]省去to 的动词不定式
[动词不定式]不定式的特殊句型so as to
[代词]并列人称代词的排列顺序
[动词不定式]不定式作宾语
[分词] 分词作插入语
[动词不定式]不定式作状语
[动词的时态]一般现在时表将来
[特殊词精讲]regret doing/to do
[形容词和副词]以-ly结尾的形容词
[动词不定式] It's for sb.和 It's of sb
[动词的时态]一般现在时的用法
[特殊词精讲]try doing/to do
[分词]分词作表语
[特殊词精讲]cease doing/to do
[特殊词精讲]remember doing/to do
[动词不定式]动词不定式
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