省略to的动词不定式短语（可以省去to的动词不定式作表语小结）

我在阅读赵振才《英语常见问题解答大词典》（增订版第五版）P1565时，遇到了一个练习题：

The only thing we can do is to try\ try to make him realize that he ought to study hard.

我们现在能做的就是让他意识到应该努力学习。

为什么这里的不定式可以省略to，感觉很罕见，当不定式用作表语时，其中的 to 原则上是不能省略的。所以觉得有必要对不定式省略to要进行总结，现在分享给大家：

主语是all, all that, anything, the only thing, the only way,或 thing,前含有序数词如first\second等或one, least，last等修饰，或形容词 最高级修饰，且句子的主语被含有do作谓语的定语从句修饰；其表语的不定式to可以省略：大家一定要注意此时省略to是选择性的，即可省可不省。

The only thing we can do is to try\ try to make him realize that he ought to study hard.

我们现在能做的就是让他意识到应该努力学习。

The only thing I can do is keep quiet and sit this one out

我唯一能做的就是保持沉默，等待这件事结束。

The only thing to do was knuckle down and get on with some serious hard work

唯一能做的就是开始努力工作，好好干出点儿成绩来。

The only thing we can do is continue to study!

我们唯一可以做的是继续学习！

The only thing I can do is keep quiet and sit this one out

我唯一能做的就是保持沉默，等待这件事结束。

The only thing I can do is go alone.

我唯一能做的事情就是独自去。

The only thing to do now is (to) go on. 前进是现在惟一的出路。

The thing for you to do is face the facts.

你要做的事情是面对现实。

The least you can do is help up a little.

你能做的就是帮一点忙。

The least his hotel could do is provide a little privacy.

他的酒店至少应该提供一点隐私保护。

Well, the least you can do, if you won't help me yourself, is to tell me where to go instead

你自己要是不帮我，好歹也告诉我该上哪儿去呀。

《柯林斯高阶英汉双解学习词典》

All you have to do is put it in the toaster and wait till it pops up.

你要做的就是把它往烤炉里一放，便可等它跳起来。

All you need to do is complete this form.

你要做的就是填好这个表格。

All you ever do is criticize!

你就知道批评！

All you have to do is make a home video.

你要做的就是拍一段家庭录像片。

Now all we have to do is help ourselves and to pray to God.

我们现在所要做的就是自助并向上帝祈祷。

All you have to do is right-click on the desktop and select New Folder.

你只要在桌面上点击鼠标右键，选择“新建文件夹”就行了。

All I can do is tell her to hold on, that there's light at the end of the tunnel.

我只能告诉她要坚持，让她知道总会柳暗花明的。

All you need to do is gently agitate the water with a finger or paintbrush

你只需要用手指或刷子轻轻地搅动水。

All he needs to do is make one phone call and I'm a marked man.

他只消打一个电话，我就大难临头了。

All she does is gossip about others.

她做的一切就是搬弄是非。

All I did was (to) press this button. 我所做的只是按这个电钮。

All you do now is (to) complete the form. 你现在要做的只是把这张表填好。

The first thing they must do is disentangle themselves from the past.

他们当务之急是先要从过去中走出来。

The last thing we should do is make any parallelism between the murderers and their victims.

我们最不应该做的一件事就是拿凶手和被害人来比较。

When you're busy all day the last thing you want to do is spend hours slaving over a hot stove.

辛苦了一整天之后，最不愿意做的事情就是在热烘烘的炉子前再忙活上好几个钟头。

The best we can do is try to stay cool and muddle through.

我们能做的顶多就是设法保持冷静，蒙混过关。

The worst thing you can do is underestimate an opponent.

最严重的错误就是低估对手。

After all, the worst the boss can do is say no if you ask him.

毕竟，如果你向老板提出请求，最糟糕的情况也不过就是他说“不行”。

The last thing I'm going to do is run off with some-body's husband

我绝不可能和别人的丈夫私奔。

It is too late though, and I felt that the kindest thing I could do now would be walk away.《大学英语》精读，复旦大学，第一册第七课

尽管为时已晚，我还是觉得我现在能做的最好的事情就是走开。

在“be”和“walk”中间省略了不定式符号“to”

2.what 引导的主语从句，且带有do时，其句子里不定式作表语，此时不定式的to可以省略：

What I should do is go and see her

我应该去看她。《柯林斯高阶英汉双解学习词典》

What it will do is create a whole new ruling class.

它的作用就是创造一个全新的统治阶级。

What the teacher now has to do is remove the reinforcement for this bad behaviour

现在老师要做的是避免这种不良行为更加严重。

What some other clubs do is unfortunate, but we want no part of it.

其他一些俱乐部的所作所为令人遗憾，但是我们不愿介入。

What you need to do is offer impartial advice on the new proposal.

你需要做的是对新议案提出公正的建议。

《外研社英语同义词辨析词典》

What you have to do is (to) fill in the questionnaire. 你要做的是把问卷填好。

What she did to the matter was keep silent.

对此事她能做的就是保持沉默。

What I’ll do is (to) tell her the truth. 我要做的就是告诉她真相。

What the plan does is ensure a fair pension foe all.

这个计划要贯彻的就是保证大家都有一份合理的退休金。

What I want to d is take a holiday right now.

我所想的就是马上去度假。

What I’ll do is (to) tell her the truth. 我要做的就是告诉她真相。

What we’ll do is leave a note for Mum to tell we won’t be back till late.《朗文当代高级英语词典》第6版what条

我们要做的是给妈妈留一张便条，告诉她我们要很晚才能回来。

3.当主语all被以say作谓语的定语从句所修饰的时候，其不定式作表语可以省略to：即

All 定语从句 系动词 不定式，如果定语从句里含实义动词say各种形式，此时不定式to可以省略。

All they said is hurry up.他们只是想说赶快。P1547赵振才《英语常见问题解答大词典》（增订版第五版）

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