在英语四六级考试中，大家都知道写作文一定要学会躲错误,很多固定句式和高分句型是必须掌握的。下面是小编给大家整理的四六级备考内容，大家可以作为参考。

一、the + ~ est + 名词 + (that) + 主词 + have ever + seen ( known/heard/had/read, etc)

the most + 形容词 + 名词 + (that) + 主词 + have ever + seen ( known/heard/had/read, etc)

例句：

Helen is the most beautiful girl that I have ever seen.

海伦是我所看过最美丽的女孩。

Mr. Chang is the kindest teacher that I have ever had.

张老师是我曾经遇到最仁慈的教师。

二、Nothing is + ~~~ er than to + V Nothing is + more + 形容词 + than to + V

例句：

Nothing is more important than to receive education.

没有比接受教育更重要的事。

三、~~~ cannot emphasize the importance of ~~~ too much.(再怎么强调...的重要性也不为过。)

例句：

We cannot emphasize the importance of protecting our eyes too much.

我们再怎么强调保护眼睛的重要性也不为过。

四、There is no denying that + S + V ...(不可否认的...)

例句：

There is no denying that the qualities of our living have gone from bad to worse.

不可否认的，我们的生活品质已经每况愈下。

五、It is universally acknowledged that + 句子~~ (全世界都知道...)

例句：

It is universally acknowledged that trees are indispensable to us.

全世界都知道树木对我们是不可或缺的。

六、There is no doubt that + 句子~~ (毫无疑问的...)

例句：

There is no doubt that our educational system leaves something to be desired.

毫无疑问的我们的教育制度令人不满意。

七、An advantage of ~~~ is that + 句子 (...的优点是...)

例句：

An advantage of using the solar energy is that it won’t create (produce) any pollution.

使用太阳能的优点是它不会制造任何污染。

八、The reason why + 句子 ~~~ is that + 句子 (...的原因是...)

例句：

The reason why we have to grow trees is that they can provide us with fresh air./ The reason why we have to grow trees is that they can supply fresh air for us.

我们必须种树的原因是它们能供应我们新鲜的空气。

九、So + 形容词 + be + 主词 + that + 句子 (如此...以致于...)

例句：

So precious is time that we can’t afford to waste it.

时间是如此珍贵，我们经不起浪费它。

十、Adj + as + Subject(主词)+ be, S + V~~~ (虽然...)

例句：Rich as our country is, the qualities of our living are by no means satisfactory. {by no means = in no way = on no account 一点也不}

虽然我们的国家富有，我们的生活品质绝对令人不满意。

十一、The + ~er + S + V,

~~~the + ~er + S + V ~~~

The + more + Adj + S + V,

~~~the + more + Adj + S + V~~~(愈...愈...)

例句：

The harder you work, the more progress you make.

你愈努力，你愈进步。

The more books we read, the more learned we become.

我们书读愈多，我们愈有学问。

十二、By +Ving, ~~ can ~~ (借着...，..能够..)

例句：

By taking exercise, we can always stay healthy.

借着做运动，我们能够始终保持健康。

十三、~~~ enable + Object(受词)+ to + V (..使..能够..)

例句：

Listening to music enable us to feel relaxed.

听音乐使我们能够感觉轻松。

十四、On no account can we + V ~~~ (我们绝对不能...)

例句：

On no account can we ignore the value of knowledge.

我们绝对不能忽略知识的价值。

十五、It is time + S + 过去式 (该是...的时候了)

例句：

It is time the authorities concerned took proper steps to solve the traffic problems.

该是有关当局采取适当的措施来解决交通问题的时候了。

十六、Those who ~~~ (...的人...)

例句：

Those who violate traffic regulations should be punished.

违反交通规定的人应该受处罚。

十七、There is no one but ~~~ (没有人不...)

例句：

There is no one but longs to go to college.

没有人不渴望上大学。

十八、be + forced/compelled/obliged + to + V (不得不...)

例句：

Since the examination is around the corner, I am compelled to give up doing sports.

既然考试迫在眉睫，我不得不放弃做运动。

十九、It is conceivable that + 句子 (可想而知的)

It is obvious that + 句子 (明显的)

It is apparent that + 句子 (显然的)

例句：

It is conceivable that knowledge plays an important role in our life.

可想而知，知识在我们的一生中扮演一个重要的角色。

二十、That is the reason why ~~~ (那就是...的原因)

例句：

Summer is sultry. That is the reason why I don’t like it.

夏天很燠热。那就是我不喜欢它的原因。

二十一、For the past + 时间，S + 现在完成式...(过去...年来，...一直...)

例句：

For the past two years, I have been busy preparing for the examination.

过去两年来，我一直忙着准备考试。

二十二、Since + S + 过去式，S + 现在完成式。

例句：

Since he went to senior high school, he has worked very hard.

自从他上高中，他一直很用功。

二十三、It pays to + V ~~~ (...是值得的。)

例句：

It pays to help others.

帮助别人是值得的。

二十四、be based on (以...为基础)

例句：

The progress of thee society is based on harmony.

社会的进步是以和谐为基础的。

二十五、Spare no effort to + V (不遗余力的)

例句：

We should spare no effort to beautify our environment.

我们应该不遗余力的美化我们的环境。

以上就是小编给大家整理的四六级备考内容，希望可以给大家学习带来帮助。