英语语法：不带to的不定式
时间：2018-12-18 作者：英语课 分类：英文语法词汇
英语课
英语动词有三个非限定形式，即不定式、-ing分词和-ed分词。关于不定式，小编想告诉你：不定式分为两种——带to不定式和不带to不定式。我们从小就耳熟能详的to do 不定式，竟然会不带to?!这到底是怎么回事?在哪些场合不定式不带to呢?请听小编细细为大家讲解：
1. 在情态动词后：情态动词后用不带to的不定式。
You must study hard. 你必须好好学习。
You should finish it as 1 soon as possible 2. 你应该尽快完成这件事。
注：边际情态动词有所不同。如need作情态动词时，跟不带to不定式;作主动词后跟带to不定式。
We need stay at home this morning. (作情态动词)我们今晚要待在家里。
We need to stay at home this morning. (作主动词)我们今晚要待在家里。
2. 在半助动词后：
You had 3 better bring an umbrella with you when you go out. 你出门最好带一把伞。
3. 在情态成语后：
在would 4 rather 5/ would sooner/ would as soon, may/ might 6 as well, cannot but/ cannot help but等情态成语之后，跟不带to不定式。
I would rather not know you. 我宁愿不认识你。
We might as well take a walk since 7 it is sunny now. 天气晴朗，我们不妨走走。
4. 在rather than和sooner than(置于句首)后：
Rather than cause 8 trouble，he left his hometown 9. 他宁愿离开家乡也不愿引起麻烦。
5. 在搭配“主动词+主动词”的第一个主动词后：
在该搭配中，第二个主动词就是不带to不定式。常见有make believe 10, let go, make believe, make do等等。
Let’s make believe we have won 11 the game.让我们假装赢了比赛吧!
6. 在“使役动词+宾语”后：在make, let, have等使役动词加宾语后，用不用to不定式。
Let’s play basketball together. 让我们一起打篮球吧。
7. 在“感觉动词+宾语”后：
在“see,hear,observe, notice,feel”等感觉动词加宾语后，用不带to不定式。
I heard someone 12 sing last night. 我昨晚听到有人唱歌。
8. 在“why/ why not”结构中：
Why not go shopping now. 为什么现在不去购物呢?
9. 在介词“except 13和but”后：
在except和but之前有“do”的某种形式，其后不定式不带to。
They have did 14 nothing except wait.除了等待，他们什么也没做。
10. 在help后：
Can you help me solve 15 this problem 16.你能帮我解决这个问题吗?
在以上这10种场合中，不定式均不需要加to。你都get到了吗?
1 as
conj.按照；如同
- He got work in a hotel as a waiter.他在一家旅馆找到了当服务生的工作。
- In the hotel,the old men were drinking away as usual.在旅馆里，这些老人和往常一样喝个不停。
2 possible
adj.可能的
- It is possible to go to the moon now.现在有可能登上月球。
- They got the work over as quickly as possible.他们尽快地结束了工作。
3 had
vbl.have的过去式和过去分词；conj.有
- I just had a good idea!我有个好主意！
- The boy had a small branch of a tree in his hand.这个男孩手上拿一条小树枝。
4 would
aux.will的过去式；愿，要；常常；大概；将要，会
- Why would you say that?为什么你会这么说？
- Would you please help me?你能帮帮我吗？
5 rather
adv.宁愿，宁可；相当
- I would rather go out tonight,if you don't mind. 如果你不介意的话，我宁愿今晚出去。
- This book is rather too easy for this boy.这本书对于这个孩子来说太简单。
6 might
aux./v.(may的过去式)可能；可以，允许
- It looks as if it might snow.看起来好像要下雪了。
- Might I ask a question?我能问个问题吗？
7 since
adv.后来；conj.既然，因为，自从；prep.自从
- He's been working in a bank since leaving school.自从毕业后，他就一直在一家银行工作。
- I have known him ever since I was a child.我自孩提时代起就已经认识他了。
8 cause
pron.造成，使发生
- Bad teeth often cause pain.坏牙常引起疼痛。
- Unhappiness is the root cause of his illness.不开心是他生病的根源。
9 hometown
n.故乡；家乡
- Australia is the hometown of kangaroos.澳大利亚是袋鼠的故乡。
- My hometown is 100 miles away from here.我的家乡离这里有一百英里路。
10 believe
v.相信；认为
- Believe it or not,that's the way it is.信不信由你，反正事情就是这样。
- I believe what you say.我相信你的话。
13 except
v.除，除外，反对；prep.除了...之外，若不是，除非
- Everybody is here except tom.除了汤姆大家都到了。
- He never came except when he was in trouble. 除非有了困难，他从来不到这里来。
14 did
v.动词do的过去式
- How many goals did you score in the last game?上一场比赛你们进了几个球？
- Why did you choose basketball in the first place?你为何首先选择篮球呢？
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英语语法