初中Section A教学ppt课件

这是一份初中Section A教学ppt课件，共37页。PPT课件主要包含了Lead-in ，compass，gun powder，printing，dacb，changing，serving，Lu Yu，被动语态的用法等内容，欢迎下载使用。
D yu knw Chinese fur great ancient inventins?
Paper making
Chinese fur great mdern inventins
Talk abut with yur partner.
What was…invented? It was invented in…Wh invented it? It was invented ….
Lk at the things belw. In what rder d yu think they were invented? Discuss them with yur grup. Then number them [1-4].
Listen and match the inventins with the dates.
_____ 1876_____ 1885_____ 1927_____ 1971
Student B, cver the dates. Student A, ask Student B when the things in the picture in 1b were invented. Then change rles and practice again.
When was the telephne invented?
I think it was invented in 1876.
When was the car invented?
It was invented in 1885.
2a Listen and number the inventins [1-3] in the rder yu hear them.
Listen again and cmplete the chart.
in the dark
Make cnversatins using the infrmatin in 2b.
What are the shes with lights used fr?
They’re used fr seeing in the dark.
Rle-play the cnversatin.
Read the passage quickly and answer the questins.
What is the subject fr their schl prject? 2. What kind f inventin des Ry think f?
Small inventins that changed the wrld.
The zipper.
3. Why des Ry think it is a great inven- tin? 4. Wh and when was the zipper invented? 5. When did the zipper becme ppular?
Because it is ften used in ur daily lives.
Whitcmb Judsn in 1893.
Arund 1917.
1. I think the TV was invented befre the car. 我想电视是在汽车之前被发明的。【解读】句中invent 作动词，意为“发明”，指发明以前从来未存在过的东西。was invented 是一般过去时的被动语态，结构为was/were + 及物动词的过去分词。【举例】（1）Edisn invented the light bulb in 1879. 爱迪生在1879年发明了电灯。（2）The light bulb was invented by Edisn in 1879. 电灯是在1879年被爱迪生发明的。（3）Such bks are written fr children. 这类书是为儿童写的。
2. —Can yu help me think f an inventin?—With pleasure!(1) Can yu…? 意为“你能……吗？”，后接动词原形。其肯定回答一般为 “Sure, I’d lve/like t. /With pleasure.”，否定回答常用“Srry, I can’t…”。(2) With pleasure! 意为“乐意效劳！”，常用于表示接受或同意某事。【拓展】My pleasure. 常用作对别人表示感谢时的礼貌回答。相当于“It’s my pleasure. /A pleasure.”。
3.Think abut hw ften it’s used in ur daily lives. think abut 表示“考虑，想起” is thinking abut travelling in the summer hliday . 他正在考虑暑假旅游的事。 She was thinking abut her childhd days.她正回想她的童年时期。【拓展有关think的短语】think f 指“考虑, 记忆, 记起” think f everything!你全都提到了。think sth. ver指“仔细想, 审慎思考, 作进一步考虑” think ver what I said.请仔细考虑我说的话。
D yu like drinking tea?
Read the passage quickly and match each paragraph with its main idea.
Para. 1Para. 2 Para. 3
Lu Yu and his bk Cha JingHw tea spread t ther cuntriesHw tea was invented by accident
Read the passage again and answer the questins.
1. When was tea first drunk? ___________________________________
2. Hw was tea invented? ___________________________________
3. Wh is called “the saint f tea”? ___________________________________
It was first drunk abut 5,000 years ag.
It was invented by accident.
4. What is Cha Jing abut? _______________________________________________________ _______________________________________________________ _______________________________________________________
5. When was tea brught t ther cuntries? ___________________________________________________ ___________________________________________________
The bk describes hw tea plants were grwn and used t make tea. It als discusses where the finest tea leaves were prduced and what kinds f water were used.
Tea was brught t Krea and Japan during the 6th and 7th centuries. It was brught t England at arund 1660.
1. It is said that a Chinese ruler called Shen Nng was the first t discver tea as a drink.
①It is said that…“据说……”
类似结构：It is believed/reprted/knwn/suppsed that...人们认为/据报道/众所周知/据猜测
②the +序数词+n.+ t d sth. 第几个做某事的...
2. Sme leaves frm a tea plant fell int the water and remained there fr sme time.
sme time:sme times:smetime:smetimes:
一段时间，常与延续性V连用；对它提问用Hw lng
几倍；几次 对它提问用Hw many times
某时；用于过去或将来时.提问用when
有时；表频率，对它提问用Hw ften
3.The tea trade frm China t Western cuntries tk place in the 19th century.
take place 发生；出现。 常指事先安排或事发有因的事情。
happen 发生。常指偶然发生的事情。
一、一般过去时被动语态
由“was/were+及物动词的过去分词”构成。被动语态的时态变化只改变be的形式，过去分词部分不变。疑问式和否定式的变化也是如此
1. 不知道谁是动作的执行者，或没有必要指出谁是动作的执行者。 e.g. English is spken all ver the wrld. 全世界都在说英语。2. 需要突出或强调动作的承受者。 e.g. This dictinary is used by mst students. 这本字典是大多数学生在用的。
三、主动语态变被动语态应注意的问题
1. 有些短语动词相当于及物动词，变为被动句时介词或副词不能去掉。
e.g. They put ff the meeting because f the weather. → The meeting was put ff because f the weather. 会议因天气的缘故被推迟了。
2. 含有双宾语的主动句变为被动句时，通常把指“人”的间接宾语变为主语，指“物”的直接宾语保留不变；如果把指“物”的直接宾语变为主语，则在间接语前加t或fr。
e.g. My aunt gave me an e-dictinary yesterday. I was given an e-dictinary yesterday. An e-dictinary was given t me yesterday.
3. 主动句中感官动词see / hear / watch / feel等和使役动词make / let / have等后跟省略t的动词不定式，变为被动语态时应加上不定式标志t。
e.g. I saw a heavy man enter the huse. A heavy man was seen t enter the huse.
4. 系动词、不及物动词或某些短语动词（happen, take place, cme true, fall asleep…）没有被动语态。
e.g. What happened t Mr. Brwn? 布朗先生发生了什么事？
Rewrite the sentences using the passive vice.
They sld the fridge at a lw price.
Smebdy stle my camera frm my bag.
Where did yu take these phts?
Our parents advised us nt t g ut alne.
Different writers translated the bk int different languages.
The fridge was sld at a lw price.
My camera was stlen frm my bag (by smebdy).
Where were these phts taken?
We were advised by ur parents nt t g ut alne.
The bk was translated int different languages by different writers.
Cmplete the sentences with the crrect frms f the verbs in the bx.
eat, like, invite, tell, lck, ring, break, bring
1. Yu ____________ t the party last night, weren’t yu? Why didn’t yu g? 2. The earthquake happened all f a sudden, but luckily the villagers _____________ t a safe place.
were invited
were brught
3. The dr ______________ when we arrived, s we ______ the bell. 4. The students ___________ nt t eat rdrink in class, but Ruby _________ the rule when she started eating a biscuit in science class. 5. The ckies _____________ by the hungry kids in less than 20 minutes, and they really ___________ them.
Decide whether active r passive frms shuld be used in these sentences. Write the crrect frms in the blanks.
The telephne ______________(invent) by Alexander Graham Bell. He __________(brn) in __________ (wrk) n the inventin f the telephne with Tmas Watsn.In 1875,Mr.Bell ___________ (learn) hw t send musical ntes thrugh an instrument similar t a telephne.Finally,the telephne __________(invent) in 1876.The first sentence ___________(say) n the telephne by Mr.Bell was "Mr.Watsn,cme here;I want t see yu."Tday the telephne _____________ (use) arund the wrld.
was invented
1. inventinventin名词，意为“发明(物);创造”inventr 名词，意为“发明者，发明家练习：He ________ the telephne in 1876.
2. electricityelectric形容词，无比较等级，指“电的;电子的;带电的”练习：Our city was withut ________ last night.
electricity
3. with pleasure用于回答别人的请求，表示客气地接受或同意my pleasure意为“别客气，不用谢”，用于回答别人的感谢练习：-May I sit here?-Yes，___________.
with pleasure
4. by accident形容词为accidental“无意的;偶然的”。It is n accident that...意为“绝非偶然”练习：I met her ________ in a crwded bus.
by accident