(共23张PPT)
有了枝叶句子就会生动饱满
如果说主谓宾组成了句子的主干
定状补就是句子的枝叶
infinitives
Unit 6 Topic1 Section D
Grammar
仁爱版 Grade 8
Review Simple Sentences, know about Subject, Predicate, Object, Object Complement, Attributive,Adverbial .
(复习简单句,了解主语、表语、宾语、宾补、定语、壮语。)
learning Objects
II. Infinitives
Is Infinitive Subject, Predicative, Object, Object Complement, Attributive,Adverbial in a Sentence?(key points & difficulties).
(能辨认动词不定式在句中作主语、表语、宾语、宾补、定语或状语)
2. Structures of the infinitive.
(掌握不定式的构成)
3. Features of the infinitive.
(理解不定式的特征)
沈丘县槐店镇第三中学 李海丽
沈丘县槐店镇第三中学 李海丽
Review sentence structures.
She can’t find her passport.
S + V + O
The plane is flying quickly.
S + V
The grass turns green.
S + V + P
The boss makes the workers work all day.
S + V + O+OC
The?cute?boy speaks English.? (那个可爱的男孩会说英语。)
The boy?in red?speaks English.? (穿红衣服的男孩会说英语。)
状语是广义的副词
Tom answered?quickly.? (Tom迅速回答。)
Tom answered?in English.? (Tom用英语回答。)
1.Subjects
To learn?English well?is not easy.
学好英语不容易。
To see?is to believe.
眼见为实。
It is not easy?to learn English well.
学好英语不容易。
It's nice?to meet you.
见到你很高兴。
不定式作主语时,如果后面接系表结构,则常使用it 做形式主语,不定式后置。如:
2. Objects
I want?to?go shopping.
我要去购物。
We decided?to?change my hotel.
我们决定换宾馆。
3. Object Complement
Mother told me?to?help her.
妈妈叫我去帮忙。
She?invited?her?friends?to?go to her party.
她邀请她的朋友参加她的派对。
I?do not want?you?to give up your dream.
我不想让你放弃梦想。
4. Predicative
My dream is to become a pilot in the future.
我的梦想就是将来当一名飞行员。
The most difficult thing in life is to know yourself.
人生最难是自知。
5. Adverbial
We went?to Hunan?to?attend his class.
我们去湖南去听他的课。
Work hard?to?get an A.
努力学习可以得个A。
I'm glad?to?meet?you.
很高兴遇见你。
不定式作状语一般表示目的、原因和结果。
6. Attributive
I have a lot of?work?to?do.
我有许多工作要做。
Would you like something?to eat?
你要吃点什么吗?
特殊疑问词加不定式
who, what, which, when, how, where+to do sth.
构成的短语,在句中作主语、宾语和表语等。
Where?to?find my lost bag?is a big problem.
哪里去找我丢失的包是个大问题。
作主语
特殊疑问词加不定式
who, what, which, when, how, where+to do sth.
构成的短语,在句中作主语、宾语和表语等。
I don't know?whom to ask for help.
我不知道去找谁帮忙。
作宾语
特殊疑问词加不定式
who, what, which, when, how, where+to do sth.
构成的短语,在句中作主语、宾语和表语等。
The question is?when?to get my key back.
问题是什么时候去拿回我的钥匙。
作表语
Focus on
1.在had better, had best, would rather...than, would sooner, do nothing but等词组后省略to。
I can?do nothing but?wait for Mum.
我只能等妈妈。
You?had better?not go.
你最好别去。
2.当动词不定式略去时,常保留to表明省略了一个不定式。
—Would you like to take a walk?
你想散散步吗?
—I’d love to. 我乐意。
Read and complete the letter with the correct forms of the given words.
Dear Li Wei, Sunday, April 7th
How are you?
I have some great news _______ (tell) you. Next week, we’re going on a spring field trip. You know, spring is the best time _________ (climb) Mount Tai. There are many interesting places ________ (visit) there. Mount Tai is in Taian, Shandong. So we decided ________ (take) the train. Kangkang helped us __________ (book) the train tickets. I also called __________ (book) some rooms.
Many of us didn’t have enough money, so Michael advised us __________ (raise) money, such as putting on a show, and ________ (sell) flowers and old books. It’s so exciting!
I’m looking forward to hearing from you.
Yours,
Maria
to tell
to climb
to visit
to take
(to) book
to book
to raise
selling
Summary
一、动词不定式的构成
二、动词不定式的特征
肯定形式:to+动词原形,有时to省略;
否定形式:not to+动词原形;
1. 无人称和数的变化
2. 有时态和语态的变化
3. 不能独立作谓语
4. 有自己的宾语和状语
5.在句中作主语、表语、宾语、宾补、定语或状语
Homework
Finish 2 on the text of P32.
We’ll check them tomorrow.
Thank you!