初中英语牛津版 (深圳&广州)九年级上册Unit 2 Great minds一等奖ppt课件

这是一份初中英语牛津版 (深圳&广州)九年级上册Unit 2 Great minds一等奖ppt课件，共25页。PPT课件主要包含了课堂导入，课堂活动，课堂小结，课堂练习等内容，欢迎下载使用。

基本结构：“t+动词原形”(t有时可以省略)。 功能：在句中除不能充当谓语外，其他成分都可充当。 如：主语、表语、宾语，状语、宾语补足语、定语等。
What is “ Infinitives ”
Infinitives after nuns
Einstein ften received invitatins t explain his theries at different universities.
T give mre infrmatin abut nuns, we can use infinitives after the nuns.
Lk at the sentence belw.
be becme help make start
A1 Jim is telling May abut his dream. Cmplete their cnversatin with the wrds frm the bx.
An ability t d
A plan t d
An ability t be
A plan t make
A way t d
A way t help
The time t d
The time t start
Advice t d
A. Infinitives after nuns
动词不定式一般都是作后置定语，修饰前面的的名词或代词，用来解释某一事物的功能或用途。
Make cnversatins with the nuns frm the bx. Use infinitives after the nuns in yur cnversatins. Yu may fllw the example belw.
A2 Cmplete the paragraph belw with the wrds frm the bx.
becme a scientist g t university d Maths try again
t g t university
t try again
t becme a scientist
Rewrite the sentences with the wrds in brackets. D nt change the meaning f each sentence.
He decided t leave schl. (decisin)
He made a decisin t leave schl.
He is able t d it. (ability)
He has the ability t d it.
I plan t visit Paris next year. (plan)
I make a plan t visit Paris next year.
Infinitives as subjects
In mst cases, we use it at the beginning f the sentence as an empty subject t refer t the infinitive.
B. Infinitives as subjects
动词不定式短语作主语时，一般不放在句首，通常以it作形式主语，将动词不定式后置。
常用形容词作它的表语： It’s + adj.（描述事物特征）+ fr sb. t d sth.. It’s + adj.（描述人性格、品质）+ f sb. t d sth.. 有时也接名词作表语。 如: It must be great fun t fly t the mn in a spaceship. it作形式主语还用于“It takes/tk/will take sb. sme time t d sth.”的句型中。 如: It will take us a lng time t walk there.　
It作形式主语时，主要有三种情况：
Hans nce drve anther scientist, Dr Green, frm the airprt t a university. Cmplete their cnversatin with infinitives and wrds in brackets.
Dr Green: Hell, Hans. Hans: Hell, Dr Green. Hw lng did it take yu t get here by plane? Dr Green: (1)_______________________________________. (take/tw hurs) Hw lng will it take t get t the university? Hans: (2)_______________________________________. (take/20 minutes)
It tk me tw hurs t get here by plane
It’ll take 20 minutes t get there/get t the university
Dr Green: Well, that’s nt very lng. Hans, yu’re a very gd driver. Is it difficult t drive a car?Hans: N. (3)____________________________.(easy/drive) Dr Green: Maybe I’ll learn t drive sme day, but (4)________________________________________ (difficult/fr me/learn) right nw. I’m t busy. D yu like yur jb, Hans? Hans: Yes, I like it a lt. I meet many great peple because I’m a driver. (5)______________________________. (lucky/fr me/have/jb)
It’s easy t drive a car
it’s difficult fr me t learn t drive
It’s lucky fr me t have this jb
Sarah is an advertisement designer. She is designing sme slgans fr Cmpex cmputers. Belw are five slgans she has thught f. Rewrite the slgans with infinitives as subjects.
It is abslutely fascinating t explre the wrld f Cmpex.
Buy a Cmpex cmputer. It is nt expensive.
It is nt expensive t buy a Cmpex cmputer.
Using the cmputer is very simple.
It is very simple t use the cmputer.
Understanding the handbk is nt difficult.
It is nt difficult t understand the handbk.
Yu can run any kind f sftware. It is easy.
It’ is easy (fr yu) t run any kind f sftware.
Explring the wrld f Cmpex is abslutely fascinating.
Infinitives after the verb t be
We als use infinitives after the verb t be.
1 d the wrk/the mst imprtant thing/well ________________________________________2 in a year/Mr White’s plan/have a small shp ________________________________________3 attract the students/my idea/by making a pster ________________________________________4 children/her jb/take care f ________________________________________
Put the wrds in the crrect rder t make sentences. Add ther wrds if necessary.
The mst imprtant thing is t d the wrk well.
Mr White’s plan is t have a small shp in a year.
My idea is t attract the students by making a pster.
Her jb is t take care f children.
c. Infinitives after the verb t be
动词不定式作表语常常用于补充说明主语的具体内容或表示目的、计划或打算等。
主语为aim, dream, hpe, idea, plan, purpse, suggestin, wish等 表示目的、计划或打算的词。 eg: His wish is t becme an astrnaut. 当句子的主语为wrk， jb或functin时， 往往也使用这一结构。 eg: The man’s jb was t give advice t the king.　
动词不定式作表语其主要用法有：
My dream was _______________ when I was yung. Nw my dream is_______________.My plan fr this cming Saturday is_______________.My best wish fr my grandparents is _____________.My suggestin fr … is _______________.My father’s jb is _______________.My aim f learning English is _______________.The purpse f studying at schl tday is ________.
Cmplete the sentences accrding t yur wn situatin.
1，Have learned hw t use infinitives after nuns , as subjects and after verb t be.
一、选择最佳答案填空。( )1. Disneyland is a gd place _____ fun. A. t have B. have C. having D. has( )2. — _____ a vlunteer is great. — I think s. Sme f us want _____ vlunteers fr the Lndn Olympics. A Being; being B. T be; being C. T be; t be D. Be; t be( )3. My plan fr the next term is _____ my Maths and physics.A. imprve B. will imprve C. imprved D. t imprve( )5. I’m thirsty, Shirley. Please give me smething _____.A. drinkB. t drink C. drinking D. drank
( )3. My plan fr the next term is _____ my Maths and physics.A. imprve B. will imprveC. imprved D. t imprve( )4. My main jb is _____ care f the children in this schl.A. takesB. t takeC. tkD. t taking( )5. I’m thirsty, Shirley. Please give me smething _____.A. drinkB. t drinkC. drinking D. drank