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(共22张PPT)
动词不定式
Do you still remember them
1. According to Joe, what is important
2. What does he need to do
It is important to meet friends in person from time to time, not just on social media.
He needs to drag himself away from the online world sometimes.
subject 主语
object 宾语
infinitive 不定式
Read each sentence and underline the infinitive. Does it function as a subject (主语), object (宾语), predicative (表语), attribute (定语), adverbial (状语) or object complement (宾语补足语)
1. My mum keeps telling me to go out with my school friends instead.
2. It’s important to meet friends in person from time to time.
3. When I set out to do something, I do my best to achieve it.
4. My target is to prepare myself for my degree in biology at university.
5. Li Ying is the first person to join the volunteering club in her class.
object complement 补语
predicative 表语
attributive 定语
adverbial 状语
subject 主语
object 宾语
动词不定式是 动词的一种，基本构成为 ，没有人称和数的变化，在句子中
______作谓语，但可做 、 、 _______ 、 、 和 ，具有名词、形容词和副词的特征。
动词不定式仍保留动词的一些特点。
What is infinitive
非谓语
to do
不能
主语
表语
宾语
状语
宾语补足语
定语
牛刀小试
She seems to (hear) about this matter.
He was said to (tell) about the news.
The weather seems (improve) now. Let's go for a picnic.
have heard
have been told
to be improving
How to use
1. 做句子的主语
To drink Mixue Bingcheng makes me happy.
It is happy for me to drink Mixue Bingcheng
牛刀小试
①To get up early is a good habit.
→ a good habit .
②It is difficult to speak a foreign language well.
→ difficult.
③It is necessary to remember enough words.
→ necessary.
It is
to get up early
To speak a foreign language well
To remember enough words
2. 做句子的表语
My wish is to join the army after graduation.
His job is to feed animals.
表将来
牛刀小试
①我的工作是每天打扫房间。
My work is every day.
②他的梦想是当一名医生。
His dream is .
③它看起来是本有趣的书。
It seems .
to clean the room
to be a doctor
to be an interesting book
3. 做句子的宾语
He managed to escape from the fire.
I don’t know what to do next.
v.+to do
I find it useful to learn English well.
v.+疑问词+to do
v.+it +adj./n.+to do
like，want，try，begin，decide，ask，forget，promise，hope，love, offer, refuse，wish等。
主语＋find/feel/think/believe/consider/make＋it＋adj./n.＋to do sth
牛刀小试
①他同意帮助我们。
He agreed .
②我们都在思考如何解决这个问题。
We are all thinking about .
③我发现与他相处是件难事。
I find it hard ____________________.
to help us
how to solve this problem
to get along with him
4. 做句子的宾语补足语
He warned me to be careful.
They saw the boy fall off the tree.
The boy was seen to fall off the tree.
ask, tell, order, want, get, would like, like, advise, invite, allow, help, wish, warn, expect, would prefer, encourage.
感官动词和使役动词后面作宾语补足语的不定式不带to，但变为被动语态时，作主语补足语的不定式需带to。常见的上述词有：一感：feel；二听：listen to，hear；三使：let，have，make；四看：see，watch，notice，observe等。另外，help后作宾语补足语的不定式符号to可有可无。
牛刀小试
我没有料到你会来得这么快。
I didn't expect here so soon.
请提醒我开会不要迟到。
Please remind the meeting.
他请我谈谈英语学习。
He asked English study.
you to come
me not to be late for
me to talk about
5. 做句子的定语
He's always the first one to get up.
Please give me something to drink.
He wanted to find a new house to live in.
不定式动词为不及物动词，则该动词必须与介词连用，使其成为及物的动词短语。
主谓关系
动宾关系
牛刀小试
①这是开前门的钥匙。
This is the key .
②这是一些纸，你可以在上面写字。
Here is some paper for you .
③他总是第一个来，最后一个走。
He was always and .
to open the front door
to write on
the first to come
the last to leave
6. 做句子的状语
He ran so fast as to catch the first bus.
He hurried to the post office only to find it was closed.
We were very excited to hear the news.
目的状语
结果状语
To turn to the left, you could find a post office.
原因状语
条件状语
just to, only to（仅仅为了）, in order to, so/such...as to...（如此……以便……）
too ...to do sth; ...enough to do sth; only to do sth。
主要放在表示喜怒哀乐(glad, pleased，sad, worried, sorrow, excited等)的情感的词汇之后。
牛刀小试
①她昨天来看我了。
She came yesterday.
②她到得很早，为的是得到一个好座位。
She arrived early .
③我急急忙忙赶到他家，结果却发现他不在家。
I hurried to his house, only him out.
to see me
to get a good seat
to find
Complete the blog entry with the correct form of the words in the brackets.
I wake up at six o’clock every morning. It _______ (take) me less than 15 minutes _________ (wash), get changed, have breakfast and leave home. I’m always the first person _______ (get) to my class. The mornings are always very busy and the afternoons are even busier! By around five o’clock, I usually _______ (find) time _______ (do) my paperwork and preview the lessons. You may think that it _______ (be) boring ________ (do) the same thing every day, but I like being busy. (Wang Qing, 16 years old)
takes
to wash
to get
find
to do
is
to do
In Henan Province and Shandong Province, China, the senior high school life is extremely tough and boring. Parents count on their children 1. (admit) into key universities. As a result, higher grades mean everything, and self control is very important 2. (succeed)．Some are begged 3. (work) hard; some are forbidden 4. _______(watch) TV.
5． (conclude), people here spare no efforts 6. (defeat) others and 7. (get) high marks comes first.
to be admitted
to succeed
to work
to watch
To conclude
to defeat
to get
Retell what the infinitive does in the sentence.
Thanks for listening

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