初中英语Section B教学ppt课件

这是一份初中英语Section B教学ppt课件，共33页。PPT课件主要包含了一般过去时的被动语态，主动句变被动句，style，pleasure，daily，mention，ruler，smell，national，translate等内容，欢迎下载使用。
Unit 6 When was it invented?
Learning gals
Functins: Learn t intrduce an inventin.Grammar: passive vice (past tense)Curriculum wrds: nearly, mentinUseful expressins: think f, take ntes, cme up with Sentences: ①It’s hard t tell wh came up with the idea first. ②Sme inventins can als lead t ther inventins all f a sudden.
Warming up
一般过去时的被动语态表示过去某一时刻发生的被动性动作, 其基本结构为： 主语+ was / were + 动词过去分词+ : The teacher was visited by them tw years ag. 他们两年前拜访过这位老师。
1. 找宾语 —— 即动作的承受者
2. 判断宾语的单复数 —— 即be动词的单复数
3. 判断动词的时态 —— 即be动词的时态
4. 修改谓语的时态 —— 即原句动词改为过去分词
5. 修改原句的主语 —— 即by + 主语
Warming up
►1. Tm brke the windw.   The windw was brken by Tm.►2. He brke the windws.  The windws were brken by him.
Warming up
n. 样式；款式 n.高兴；愉快 adj. 每日的；日常的 v. 提到；说到 n. 统治者；支配者 n.气味 v.发出……气味 adj.国家的；民族的 v. 翻译 adj.突然（的） n. 饼干 adj.酸的；有酸味的 n. 顾客；客户 adj. 职业的；专业的
有道理 偶然;意外地 发生；出现 毫无疑问；的确 突然；猛地 把……译成…… 错误地；无意中 把……分开 不但……而且…… 钦佩；仰慕
have a pint
by accident
withut dubt
all f a sudden
Warming up
Pre-writing
Hw many inventins have been mentined in this unit?
In fact, inventins are everywhere in ur life.
Pre-writing
Think f smething that yu d nt like t d. Then think f an inventin that culd help yu. Make ntes.
• Prblem: __________________________ New inventin: __________________ What it is used fr: __________________
quickly taking ntes in class
a special pen
taking ntes quickly
Imagine yu are a business persn. Write a descriptin f yur new inventin. Try t sell the inventin t the class.
This special pen was invented by Liu Jie. It has three clrs and is used fr…
Pre-writing
While-writing
at the same timealthugh
rder that...
There ,shape,size,use
Hw t intrduce an inventin
in+ 年份n+月，日，年
Try t use the fllwing expressins: It was invented by...It is used fr...nt als...have a pintIt is very imprtant / f great imprtance because...In my pinin...
While-writing
While-writing
定体裁：说明文定人称：介绍一项发明，人称为第三人称，表达想法为第一人称定时态：一般为一般现在时和一般过去时
介绍这个发明的情况。
说出自己的想法和意见。
While-writing
Tpic sentence: I have a great inventin. It is...
It is can nt nly... but is used will be very cnvenient / helpful / cmfrtable if...
Cnclusin:I think the inventin is very useful. I hpe that it can be widely used in the future.
查字数是否符合要求，名词、代词单复数、词组搭配是否正确
查句子结构是否完整，动词时态、语态是否正确，主谓是否一致
查篇章结构是否完整、文体格式是否正确
查卷面书写是否规范，有无单词拼写、大小写、标点符号的笔误
While-writing
常用连接词或短语 and/but/s/because/when/hwever/if/what’s mre in this way/after that/in rder t/s that/such as in my pinin/like/nt n the ne the ther hand亮点句 1. Withut dubt, I think it is my best inventin. 2. It can nt nly change the light but als be turned n r ff itself. 3. I think it can be widely used in ur daily/everyday lives.
Sample writing
This is my new inventin—an adjustable dustpan(簸箕). I think it can be widely used in ur daily life.I came up with the idea because f my mther.My mther is tall,s she always feels tired when she bends dwn(弯腰) t use the nrmal dustpan.After ding sme study, I invented this adjustable dustpan fr her.It lks like a nrmal ne but it has a special handle.It can be adjusted lnger r shrter accrding t the users’ need. Withut dubt, I think it is my best inventin.I hpe a large number f adjustable dustpans will be prduced t help mre peple.
Pst-writing
1. Cmplete the passage with the crrect frms f the wrds in the bx.
invent dubt mentin nearly website all f a sudden
It is ften difficult t decide n the inventr f certain inventins. This is because smetimes a few peple may ______ things which are ______ the same. It’s hard t tell wh came up with the idea first. Sme inventins can als lead t ther inventins ________________. S sme peple _________ whether the inventr came up with the idea himself r herself. They think that the inventr used smene else’s idea t create his r her inventin. That is why bks r ________ usually _________ mre than ne inventr when giving infrmatin abut inventins.
2. Rewrite these sentences using the passive vice.
1. Smene stle my watch. 2. They used five eggs t make this big cake. 3. When did they invent the persnal cmputer? 4. They asked us nt t run in the hallway. 5. Smene tk the vide back t the stre.
Pst-writing
1. Smene stle my watch.2. They used five eggs t make this big cake.3. When did they invent the persnal cmputer?
My watch was stlen (by smene).
Five eggs were used t make this big cake (by them).
When was the persnal cmputer invented (by them)?
Pst-writing
4. They asked us nt t run in the hallway.5. Smene tk the vide back t the stre.
We were asked nt t run in the hallway (by them).
The vide was taken back t the stre (by smene).
3. Find ut infrmatin abut an inventin yu wuld like t knw mre abut and write sentences belw.
Inventin: .When: .Wh: .Purpse: .
It was invented in 1876
It was invented by Alexander Graham Bell
It was invented t cmmunicate with thers
Pst-writing
Language pints
This is because smetimes a few peple may invent things which are nearly the same.（教材P48 Self Check 1）
nearly与almst 的辨析
Exercise
一、用括号内所给单词的适当形式填空。
The first paper _____________ (make) in China in 105 AD.In 610AD, papermaking _________________ (intrduce) int Japan.Kites ___________ (knw) in China abut 2,000 years ag.Gunpwder ________________ (discver) by the Chinese hundreds f years ag.Sccer ________________ (develp) in England in the 12th century.
was intrduced
was discvered
was develped
二、按要求完成下列句子。
1. We planted these trees in 1997. (改成被动语态) ____________________________________2. He made a cake yesterday. (改成被动语态) ____________________________________
These trees were planted (by us) in 1997.
A cake was made by him yesterday.
3. The teacher gave the students sme advice. (改成被动语态) ____________________________________________________4. He was seen t read a bk in his rm. (用I作主语, 改成主动语态) ____________________________________________________5. She was helped by all the peple.(改成一般疑问句) _______________________________________________
Sme advice was given t the students by the teacher.
I saw him read a bk in his rm.
Was she helped by all the peple?
Exercise
1.（2021福建）Many research labs ________ in the next 5 years t develp science and technlgy in China. A. are building B. will be built C. were built2. (2021内蒙古自治区包头) A small wn in Nrway desn’t get direct sunlight frm late September t mid-March _______ six mnths ut f the year. A. nly B. hardly C. clearly D. nearly
Exercise
Hmewrk
Finish the writing.D the exercises in students’ bk.Prepare fr the test.