课件55张PPT。welcome to our classwelcome to our classwelcome to our classGrammar and usageUnit 1 ★To-infinitive
★bare infinitive
★verb-ing form as a noun. I. To-infinitiveReview the basic sentences elements.
I was watching an English programmer at 8
o'clock yesterday.
I-----subject; was watching-----predicate;
an English programmer----object;
at 8 o'clock yesterday----adverbial
2. The games of 2006 World Cup are exciting.
exciting----predicative
3. I lost my history book.
history----attribute
4. He made the room clean and tidy.
clean and tidy----object complement
The to-infinitive can be used alone or as part of an infinitive phrase and the to-infinitive can serve as the subject, object, object complement, attribute, predicative or adverbial of a sentence. 1. the to-infinitive used as the subject
不定式作主语
eg. To obey law is everyone's duty
遵纪守法是每个人的职责。
To know oneself is difficult.
了解自己是困难的。
To talk with your mouth full is rude.
满嘴食物地讲话是不礼貌的。 It is impossible to finish the work in
such a short time.
在如此短的时间内完成这项工作是不
可能的。
It is useful for you to learn some
spoken English.
学习一些口语对你来说是有用的。The following words are usually followed by the to-infinitive as the object: want, hope, wish, like, begin, start, agree, learn, promise, teach, refuse, help, arrange, dare, decide, determine, fail, manage, offer, prepare, pretend,, continue, ask, mean, expect, choose, prefer. 2. the to-infinitive used as the object
不定式作宾语
eg. He managed to solve the problem
by himself.
他自己设法解决了问题。
I like to read newspaper articles
about sports.
我喜欢读一些体育方面的新闻报道。
Amy wants to know more about the
film.
安米想知道更多的关于这部电影的情况。3.the to-infinitive used as the object complement
不定式作宾语补足语
eg. I'd like you to keep everything tidy.
我希望你能使每样东西都保持整洁。
The teacher asked us to finish the work
today.
老师要我们今天完成工作。
Tell Jack to close the window, please.
请让杰克关上窗户。动词make, let, have, hear, see, feel, watch, notice 和observe后的宾语补足语,可省去"to"。
eg. They saw the boy fall suddenly
from the tree.
他们看见那小男孩突然从树上跌下来。
The boss made the workers work
14 hours a day.
老板让工人们每天工作14小时。4.the to-infinitive used as the predicative
不定式作表语
eg. My wish is to be a doctor.
我的愿望是成为一名医生。
Our plan is to finish the work in two
weeks.
我们的计划是两周内完这项工作。
What I need most now is to have a
good rest.
我现在最需要的是好好休息。5.the to-infinitive used as the attribute
不定式作定语
eg. I have a lot of work to do.
我有许多工作要做。
I have no one to talk to.
我没有一个可以交谈的人。
He is looking for a house to live in.
他正在找房子住。 6.the to-infinitive used as adverbial of a sentence to show reason, purpose or result
不定式作句子的原因、目的和结果状语
eg. He came here to attend an important
meeting. (purpose)
他来这儿参加一个重要的会议。(目的)
Sam was very surprised to hear the news.
(reason)
萨姆听得这个消息很吃惊。(原因)
He went home to find his old friend George
waiting for him. (result)
他到家发现他的老朋友乔治在等他。(结果)When we use to-infinitive as the result adverbial, it means the result is unexpected or surprising.
eg. He hurried to the rail station,
only to find the train had left.7.the continuous and perfect forms of the to-infinitive
不定式的进行式和完成式
eg. She seemed to have heard of it
already.
她似乎已经听说过这件事了。
When the teacher came in, the
students pretended to be reading
loudly.
当老师进来时,同学们假装正在大声
读书。
Test yourselfTHINK IT OVER She pretended _________ me when I
passed by.
A. not to see B. not seeing
C. to not see D. having not seen
---- I usually go there by train.
---- Why not _______ by boat for a
change?
A. to try going B. trying to go
C. to try and go D. try going
THINK IT OVER
高考链接Having a trip abroad is certainly good for the old couple, but it remains _______ whether they will enjoy it. (NMET2002)
A. to see B. to be seen
C. seeing D. see
Test yourselfTHINK IT OVERI went to see him, ________ him out.
A. finding B. find
C. only to find D. found
Test yourselfTHINK IT OVERAre you going to attend the meeting ________ next Saturday?
A. holding B. hold
C. will be held D. to be held
Charles Babbage is generally considered _________ the first computer.
A. to invent B. inventing
C. to have invented D. having invented
II. Bare infinitive
bare infinitive after let, make and have
eg. I'll let you use my computer.
我会让你用我的电脑的。
Don't make the boy stand all the
time.
别让那个小男孩一直站着。
The teacher had her students finish
the work within 5 minutes.
老师让她的学生们5分钟之内完成作
业。当"make/ let/ have + bare infinitive" 变成被动语态时,应加上"to"。
eg. The workers were made to work 14 hours a day by the boss.
工人们被迫每天工作14个小时。bare infinitive after verbs of perception like feel, hear, see, watch, observe and notice
eg. I often hear him sing in the next
room.
我经常听到他在隔壁房间唱歌。
He stood there and watched the
passengers go by.
他站在那儿看着行人来来往往。
Did you notice anyone enter the
house?
你注意到有人进那间屋子吗?Notes: Verbs of perception can also be used with verb-ing but with different meanings.
I saw her talk to her new friends.
(I witnessed the whole conversation.)
我看到她和她的新朋友谈话。(我目睹了整
个谈话过程)
I saw her talking to her new friends.
(When I saw her, she was talking to her
new friends. I might not have witnessed
the whole conversation.)
我看到她正在和她的新朋友谈话。(当我
看到的时候,她正在谈话。但我可能没看
到整个过程。)bare infinitive after some phrases or patterns like would rather, had better and why not
eg. I'd rather stay at home.
我宁愿呆在家里。
You'd better not be late.
你最好别迟到。
Why not go to the beach?
为什么不到海边走走? We use the bare infinitive for the second infinitive when two infinitives are joined by and, or, except, but, than, rather than, as or like.
eg. I forgot to turn off the lights and close
the door when I left.
我离开的时候忘记关灯、关门了。
We decided to stay at home rather than
go to the cinema.
我们决定呆在家里,不去电影院了。
高考链接THINK IT OVERThe managers discussed the plan that they would like to see ________ the next
year.(MET2002)
A. carry out B. carrying out
C. carried out D. to carry out
Test yourselfTHINK IT OVERWe were told to have our reading room _________ after school.
A. clean B. to clean
C. cleaning D. cleaned
Paul doesn't have to be made _______ . He always works hard.
A. learn B. to learn
C. learned D. learning
Test yourselfTHINK IT OVERJane was made ________ the truck for a week as a punishment.
A. to wash B. washing
C. wash D. to be washingAnswers to Sally’s letter:
1.to thank 2. to talk 3. to have
4. e-mail 5. to receive 6. to go
7. watch 8. borrow 9. visit
10. Spend 11. write 12. tell
13. to see 14. make 15. comeIII. Verb-ing form as a nounVerb-ing form used as the subject of a sentence
eg. Laying eggs is the ant queen's
full-time job.
产卵是蚁后的专职工作。
It is no use arguing with him.
与他争辩没用。
Her swimming has improved since she
started training every day.
自从她开始训练以后,她的游泳进步的很快
Verb-ing form used as the object of a sentence
eg. I like swimming.
我喜欢游泳。
He has finished writing the composition.
他已经写好了作文。
He is fond of playing football.
他喜欢踢足球。The following phrases are followed by the verb-ing form:
would you mind, can't help,
look forward to, feel like,
can't stand, it's no use/ good...,
put off, keep on,
give up, devote to,
stick to, be busy,
be worth, get down to …Some verbs can be followed by a verb-ing form or a to-infinitive, but with some differences
in meaning or usage .regret to do: 抱歉要做某事
regret doing: 后悔做了某事
eg. I regret to tell you that you
are fired.
我抱歉地告诉你你被解雇了。
I regret telling him the truth.
我后悔告诉他真相。forget to do: 忘记去做某事
forget doing: 忘记做了某事
eg. He forgot to close the door
when he left.
他离开时忘了关门了。
I will never forget winning my
first gold medal.
我永远忘不了我第一次获得金牌
的情况。remember to do: 记得要做某事
remember doing: 记得曾经做过的事
eg. Remember to post the letter for
me on your way to work, OK?
在你上班的路上记得帮我把信寄了,
好吗?
I remember seeing this man
somewhere.
我记得在哪儿见过这个人。mean to do: 打算做某事
mean doing: 意味着做某事
eg. I mean to come earlier today.
我今天打算早点来。
Missing the train means waiting
for another hour.
错过这列火车意味着又要等一个
小时。try to do: 努力做某事
try doing:尝试做某事
eg. She tried to finish the work as
quickly as she can.
她努力地要尽快完成这项工作。
I tried doing the exercise in a
different way.stop to do:停下来做某事
stop dong: 停止做某事
eg. The workers stopped to have
a rest.
工人们停下来休息。
The workers stopped working
and have a rest.
工人们停止了手中的活,休息一下。
go on to do: 继续做另一件事
go on doing: 继续做同一件事
eg, After doing the cooking, mother went on to do some washing.
饭做好后,妈妈又继续洗衣服了。
The workers went on working after a short rest.
短暂的休息后,工人们又开始干活了。Verb-ing form used as the predicate of a sentence
eg. Her job is teaching.
她的工作是教学。
Seeing is believing.
眼见为实。Verb-ing form used as the attribute of a sentence
eg. There is a shoe in the swimming pool.
游泳池内有一只鞋。
He is in the reading room.
他在阅览室里。
Answers to the e-mail:
1.visiting/ to visit 2. chatting
3. Visiting 4. pretending
5. chatting/ to chat
6. Stop 7. chatting
8. to do 9. pass
高考链接THINK IT OVERIt remains________ whether Jim will be fit
enough to play in the finals.(06年浙江)
A. seen B. to be seen
C. seeing D. to see
Mary, _______ here---everybody else , stay
where you are. (06年 全国I)
A. come B. comes
C. to come D. coming
高考链接THINK IT OVER
Is it time you got down to ___ the papers?(06年 重庆)
A. mark B. be marked
C. being marked D. marking
Test yourselfTHINK IT OVER Go on ______ the other exercise after you have finished this one.
A. to do B. doing
C. with D. to be doing
She didn't remember________ him before.
A. having met B. have met
C. to meet D. to having met
Test yourselfTHINK IT OVER I can hardly imagine Peter____ across the Atlantic Ocean in five days.
A. sail B. to sail
C. sailing D. to have sailed
----- You were brave enough to raise
objections at the meeting.
----- Well, now I regret _____ that.
A. to do B. to be doing
C. to have done D. having done
Test yourselfTHINK IT OVER翻译下列句子。
(1) 要学好一门外语是不容易的。
It's not easy to learn a foreign language well.
(2)我们拒绝他们的邀请会显得无礼。
It would be rude of us to refuse their invitation
(3)女士们,先生们,我有一些重要的事情要告诉你们。
Ladies and gentlemen, I have something
important to tell you.
Test yourselfTHINK IT OVER
(4母亲轻轻地走了进来,以免惊醒儿子。
Mother came in quietly so as not to
wake the sleeping boy
(5)我叫小李给你修收音机。
I'll have Xiao Li repair the radio for youBye - bye!Bye - bye!