◆     句型积累

A.      used to

例句观察

In fact, I used to dream about one day being a famous football player and representing our country in the World Cup.

事实是，我过去常常梦想有一天能成为一名著名的足球运动员代表国家参加世界杯比赛。

There used to be a bus stop on that corner.

在那个拐角上曾有一个公共汽车站。

I used to go to office on foot but I don’t do that now.

过去我步行去上班，但现在我不这样了。

归纳拓展

(1) used to do, be used to sth. / doing sth. 与be used to do

used to 表示过去经常发生的动作或存在的状态，但现在已不再发生或存在。

（2）be used to sth. / doing sth. 结构，意为“习惯于”。be可用于多种时态，可用get或become替换，以表示“逐渐习惯于”。

（3）be used to sth.意为“被用来做某事”，其中use是及物动词“使用”，是被动结构，不可和系表结构的be use to doing sth.相混淆。

2.so that

例句观察

There should be a space at the end of each row so that people in wheelchairs can sit beside their friends.

在每排坐位的后面都应留有空间以便于那些乘坐轮椅的人坐在他们朋友的旁边。

I’ll show you so that you can see how it’s done.

我做给你看，以便使你明白如何做此事。

Jack worked hard so that he might get a good job.

为了能找到一份好工作，杰克努力地工作。

归纳拓展

（1）       so that=in order that。但位于句首时，只能用in order that不能用so that。So that既可引导结果状语从句，又可引导目的状语从句，而in order that只能引导目的状语从句。

（2）       so as to 与in order to大致相似，但用于句首时只能用in order to。

3. too… to

例句观察

Some days I was too tied to get out of bed.

有时候我太疲劳了以致于起不了床。

He is too old to work.

他太老了不能再工作了。

She was too excited to say a word when she heard the news.

当她听到这个消息时激动地说不出话来。

归纳拓展

too…to结构一般表示否定含义，意为“太……以致于不能”。

但too…to在下列情况下却不表示肯定含义：

(1) 当too前或to前有否定词构成双重否定时。

e.g: English is not too difficult to learn.

英语并不太难学。

(2)当too后是glad, pleased, happy, delighted, satisfied, ready, willing, kind, apt, good, true, easy, near, careful, well, early, delicious, eager, anxious等形容词或副词时。

e.g: They are too anxious to leave.

他们急于离开。

He is too ready to help others.

他总是乐于助人。

I’m only too glad to see you.

见到你非常高兴。

（3）与cannot连用时。

e.g: You cannot be too careful(=You can never be careful enough) to do your homework.

你做作业越仔细越好。（=无论怎样仔细也不过分）。

（4）当不定式在句中作定语或真正的主语时。

e.g: There are too many problems to be solved.

有很多问题有待解决。