人教九上U6時(shí)導(dǎo)學(xué)教案

1、自主學(xué)習(xí)方案1.學(xué)生自學(xué)生詞，并記住單詞拼寫和拼讀。2.預(yù)習(xí)課本，熟讀重點(diǎn)短語(yǔ)和句子。（見學(xué)習(xí)目標(biāo)）課堂導(dǎo)學(xué)方案Step 1 復(fù)習(xí)Ask students questions like:What is your chair made of?Where is it made?環(huán)節(jié)說明：簡(jiǎn)要復(fù)習(xí)上單元有關(guān)詢問物品的原材料，產(chǎn)地等的教學(xué)內(nèi)容。Step 2 情景導(dǎo)入Ask the students like below:T:What are there in your house? Do you have mobile phones, computers or cars?S1:_ T:What are

2、 they made of?S2: _ 環(huán)節(jié)說明：由向?qū)W生問其家里的電器、交通工具入手進(jìn)入本單元內(nèi)Step 3 完成教材1a-2d的任務(wù)1.1a學(xué)生看本節(jié)四種發(fā)明，判斷它們被發(fā)明的先后順序。2.1b聽1b錄音，把每項(xiàng)發(fā)明及其年份搭配起來(lái)。3.1c學(xué)生B遮住日期。學(xué)生A 問學(xué)生B 在1b圖畫中的物品是什么時(shí)候發(fā)明的。然后交換角色，再練習(xí)。并找?guī)捉M學(xué)生展示他們的對(duì)話。4.2a聽2a的錄音，根據(jù)聽到的順序給下面的發(fā)明標(biāo)上1-3的序號(hào)5.2b再聽錄音，完成表格。6.2c小組練習(xí)，學(xué)生就2b模仿本節(jié)對(duì)話練習(xí)對(duì)話，并找?guī)捉M學(xué)生展示他們的對(duì)話。7.2d處理學(xué)生預(yù)習(xí)后的重難點(diǎn)，然后學(xué)生兩人一組讀對(duì)話，然后讓2

3、-3對(duì)學(xué)生表演對(duì)話。課堂資料包Step 1 重難點(diǎn)解析1.I think the TV was invented before the car.我認(rèn)為電視比汽車發(fā)明得早。這是一個(gè)主從復(fù)合句，think后面跟了一個(gè)賓語(yǔ)從句。因?yàn)橹骶涫且话悻F(xiàn)在時(shí)態(tài)，從句根據(jù)句意用了一般過去時(shí)態(tài)。（1）was invented意為“被發(fā)明”，此結(jié)構(gòu)為一般過去時(shí)的被動(dòng)語(yǔ)態(tài)。一般過去時(shí)的被動(dòng)語(yǔ)態(tài)的結(jié)構(gòu)為“was/were + 及物動(dòng)詞的過去分詞”。如：These trees were planted last year.這些樹是去年種的。The car was bought yesterday.這部車是昨天買的。（2）

4、invent作動(dòng)詞，意為“發(fā)明，創(chuàng)造”，指發(fā)明以前沒有的新東西。當(dāng)物做主語(yǔ)時(shí)，常用被動(dòng)語(yǔ)態(tài)。invention名詞，意為“發(fā)明物”；inventor名詞，意為“發(fā)明家，發(fā)明者”。如：Edison,a great inventor, invented many great inventions during his life.愛迪生，一個(gè)偉大的發(fā)明家，在他的一生中發(fā)明了許多重要的發(fā)明。Many inventions have been invented last year.去年有多項(xiàng)發(fā)明。2.What are they used for?它們是用來(lái)做什么的？ be used for sth./d

5、oing sth.意為“被用來(lái)做某事”，表示用途或目的，后接名詞或動(dòng)名詞，相當(dāng)于be used to do sth.。如：Clothes are used for keeping (=to keep) warm.衣服是用來(lái)保暖的。Wood can be used for building (=to build) houses.木材可以用于建房子。The stick is used to write on the blackboard.那根棒子被用來(lái)在黑板上寫字。辨析：be used for，be used as 與be used by(1)be used for被用來(lái)（做）,for表示用途或目

6、的，后接名詞或動(dòng)名詞形式。如:Knives are used for cutting things.刀子是用來(lái)切東西的。Bikes are used for riding.自行車是用來(lái)騎的。(2)be used as 被用作,as是介詞，意為“作為”，其后一般接名詞，強(qiáng)調(diào)使用的工具或手段。如:The box is used as a table by my mother.這個(gè)箱子被媽媽當(dāng)作桌子使用。(3)be used by 被使用,by是介詞，意為“被，由”，后接動(dòng)作的執(zhí)行者。如:The tools are used by the workers in the factory.這家工廠的工人

7、使用這些工具。The computers are mainly used by the students.那些電腦是學(xué)生用的。Step 2 小結(jié)訓(xùn)練(C)1.The telephone _by a wellknown scientist, Edison. A.inventedB.inventingC.was invented(A)2.English is used _a second language people in many _countries.A.as;by B.for;by C.as;for(B)3.What is the bottle used for?It is used _h

8、old the water.A.for me to B.by me to C.to me for(B)4.He is famous for the_ he_ .A.inventions; inventionB.inventions; inventedC.inventor; invention環(huán)節(jié)說明：學(xué)生進(jìn)一步鞏固對(duì)invent,use 相關(guān)用法的理解和掌握。Step 3 問題探究1.The ancient Chinese_ (發(fā)明) tea that is now very popular all over the world.【解析】答案是 invented。這里應(yīng)該用invent的主動(dòng)語(yǔ)

9、態(tài)，同時(shí)根據(jù)句意，應(yīng)該用invent的過去式，故答案是invented。2.The old man is so lonely that he hopes to know about_ every day.A.special somethingB.special anything C.something specialD.anything special【解析】答案是C。句意為“老人很孤單，他希望每天都知道一些特殊的事。”3.The computer is a great invention it changed the world.A.so;that B.such;that C.so;how【解析】答案是B。a great invention是名詞詞組，所以用詞組such that。4.What is the thing made _ you used _?It is important _us to clean the glass.A.by；for；byB.by；for；forC.for；to；for【解析】答案是B。句子意思為：你做的這個(gè)東西是用來(lái)干什么的？它對(duì)我們擦玻璃很重要。5.The man_ （mention) in the book lived in Q