英語九年級全冊人教新課標(biāo)unit 9精品教學(xué)案

1、英語九年級上冊第九單元教學(xué)案執(zhí)筆人 羅偉斌Section A 第一課時課前預(yù)習(xí)翻譯下列句子或短語be used for _ be invented by _ light bulb_operate on sb._ microwave oven_陷入 （ ） 意外的（ ） 用這種方法 （ ）1. When was the telephone invented ?_2. What are they used for ?_3. What do you think is the most useful invention ?_4. I d like to have a radio because I c

2、ould listen to music all day._一、 重點(diǎn)講解及課堂練習(xí)一、重點(diǎn)單詞1、invent v. 發(fā)明，創(chuàng)造 例：Do know who invented the computer? 你知道誰發(fā)明了計(jì)算機(jī)嗎？拓展invention n. 發(fā)明（物），創(chuàng)造物 例：Here are some important inventions in human history. 這是人類歷史上的一些重要發(fā)明。 Inventor n. 發(fā)明家，該詞是由動詞invent+or 構(gòu)成的名詞。 例：Edison was a great American inventor. 愛迪生是一位偉大的美

3、國發(fā)明家。Operate v. 操作，操縱，開動；運(yùn)轉(zhuǎn)，工作；管理，經(jīng)營；起作用，奏效；動手術(shù)，開刀例：This machine does not operate smoothly. 這臺機(jī)器運(yùn)轉(zhuǎn)不靈。The doctor operated on the babys eyes. 這位醫(yī)生給這個嬰兒做眼部手術(shù)。自我測評：1.Thomas Edison was a great American (invent). He had more than one thousand (invent) in his life.2.The boy is badly hurt, so he needs an (手

4、術(shù)) at once.3.Personal computers about 30 years ago. A. invented B. was invented C. were invented D. inventing4.These new types of computers are easy . A. operation B. to operate C. to operation D. operation5.When was umbrella ? A./;invented B. a;discovered C. an; discovered D. the; invented6.The doc

5、tor operated him at once and he at last. A. with; was saved B. on; saved C. on; was saved D. with; saved二、重要短語1、be used for 被用于，其中的for是介詞，因此其后跟名詞或動詞作介詞賓語。例：A knife is used for cutting. 刀是用來切東西的。辯析be used for, be used as , be used by ，be used to do sth., used to do sth. 與 be /become /get used to doin

6、g sth.(1) be used for 被用于，被用來做，強(qiáng)調(diào)用途或作用。 (2 )be used as （被）作為而使用，強(qiáng)調(diào)被當(dāng)作工具或手段來用。 (3) be used by 被使用，by后跟人或物，強(qiáng)調(diào)使用者。 (4) be used to do sth. 被用來做，強(qiáng)調(diào)動作，其中used是動詞use的過去分詞。(5 ) used to do sth. 過去常常干某事，后面跟動詞不定式。 (6)be /become /get used to sth/ doing sth. 習(xí)慣于某事或干某事，其中used 是形容詞，to 為介詞。例：Keys are used for openin

7、g locks. 鑰匙是用來開鎖的。 “swim”can be used as noun. Swim 可以作名詞用。 Recorders are often used by English teacher. 英語老師經(jīng)常使用錄音機(jī)。The knife can be used to cut meat. 這把刀可用來切肉。He used to swim in the river when he was a child. 孩提時代他經(jīng)常在這條河里游泳。I have been used to the hot weather here. 我已經(jīng)習(xí)慣了這里的炎熱天氣。注意在被動詞態(tài)中經(jīng)常出現(xiàn)“be +過去

8、分詞+ by ”結(jié)構(gòu)。介詞 by 之后接名詞或代詞賓格表示動作的發(fā)出者。例：Children are taken good care of by teachers at school. 孩子們在學(xué)校受到老師們很好的照顧。自我測評1.Pencils are used . A.to writing B.for write C.for writing D.writing 2.The telephone Bell many years ago. A.invented B.was invented C.was invented by D.invented by3.Raincoats are used f

9、or (keep)off rain.4.This notebook is used to writing down something interesting by the little girl. (改錯) 5.Who invented it ?(改為被動語態(tài)) Whom it ?三、特殊句型1、What do you think is the most helpful invention? 分析do you think 可以看作是插入語，用“疑問詞+do you think+正常語序”的結(jié)構(gòu)。例：What do you think he would do next? 你認(rèn)為他接下來將做什么

10、？辯析listen to 與 hear Listen to 意為“聽”，表示一種“聽”的動作、過程，至于結(jié)果是否聽見則表示不出來；而hear意為“聽見”，強(qiáng)調(diào)一種結(jié)果。例：I listened again , but I still heard nothing. 我又聽了一下，但仍然什么也沒聽到。 listen to me carefully! 仔細(xì)聽我說！四、疑難句子1、It gives people more time to work and play every day. 它(電燈)每天給人們更多的時間去工作和娛樂。分析動詞不定式短語to work and play every day在

11、句中作目的狀語。 注意give sb. Some time to do sth給某人一些時間去干某事例：Joining WTO gives Chinese people more chances to find work.加入WTO給了中國人更多找到工作的機(jī)會。2、Yes，but thats not going to help you leave the island. 是的，但那也將無助于你離開那個島。分析1該句中用了help sb. (to)do sth“幫助某人干某事這個詞組，動詞help后由動詞不定式擔(dān)當(dāng)賓語補(bǔ)足語，可以帶to，也可以不帶to。 例：He helps me(do) le

12、arn English every day. 他天天幫我學(xué)英語。注意 在這些使役動詞和感官動詞變?yōu)楸粍诱Z態(tài)時，則應(yīng)該把原來省略的動詞不定式符號to加上。例：The child is made to go to bed before nine oclock in the evening by his parents父母迫使那個孩子九點(diǎn)以前上床睡覺。Lucy was heard to sing a song last night. 昨天晚上有人聽見露茜唱了一首歌。被動語態(tài)概述英語中有兩種語態(tài)：主動語態(tài)和被動語態(tài)。主動語態(tài)表示主語是動作的執(zhí)行者。巧記為：主動、主動、主去動。例如：Many peopl

13、e speak English.謂語：speak的動作是由主語many people來執(zhí)行的。被動語態(tài)表示主語是動作的承受者，即行為動作的對象。巧記為：被動、被動、主被動。例如：English is spoken by many people.主語English是動詞speak的承受者。主動態(tài)和被動態(tài)指的是動詞形式，是詞法概念；而主動句和被動句則指的是句子結(jié)構(gòu)，從而是句法概念。所謂主動句就是由主動態(tài)動詞(詞組)作謂語動詞的句子，而被動句則是由被動態(tài)動詞(詞組)作謂語動詞的句子。例如：He opened the door.他開了門。(主動句)The door was opened.門被開了。(被

14、動句)二、被動語態(tài)的構(gòu)成被動語態(tài)由“助動詞be及物動詞的過去分詞”構(gòu)成。人稱、數(shù)和時態(tài)的變化是通過be的變化表現(xiàn)出來的?，F(xiàn)以teach為例說明被動語態(tài)在各種時態(tài)中的構(gòu)成。一般現(xiàn)在時：amisaretaught一般過去時：wasweretaught一般將來時：willshall betaught現(xiàn)在進(jìn)行時：amisare beingtaught過去進(jìn)行時：havehas beentaught現(xiàn)在完成時：havehas beentaught歌訣是：被動語態(tài)be字變，過去分詞跟后面。三、被動語態(tài)的用法(1)不知道或沒有必要說明動作的執(zhí)行者是誰。例如：Some new computers were s

15、tolen last night. 一些新電腦在昨晚被盜了。(不知道電腦是誰偷的)This book was published in 1981.這本書出版于1981年。(2)強(qiáng)調(diào)動作的承受者，而不強(qiáng)調(diào)動作的執(zhí)行者。例如：the window was broken by Mike.窗戶是邁克打破的。This book was written by him.這本書是他寫的。歌訣：誰做的動作不知道，說出誰做的沒有必要；動作承受者需強(qiáng)調(diào)，被動語態(tài)運(yùn)用到。四、主動語態(tài)變被動語態(tài)的方法(1)把主動語態(tài)的賓語變?yōu)楸粍诱Z態(tài)的主語。(2)把謂語變成被動結(jié)構(gòu)(be過去分詞)(根據(jù)被動語態(tài)句子里的主語的人稱和數(shù)，

16、以及原來主動語態(tài)句子中動詞的時態(tài)來決定be的形式)。(3)把主動語態(tài)中的主語放在介詞by之后作賓語，將主格改為賓格。例如：All the people laughed at him.He was laughed at by all the people.They make the bikes in the factory.The bikes are madeby themin the factory.歌訣是：賓變主，主變賓，by短語后面跟。謂語動詞變被動，be后“過分”來使用。五、含有情態(tài)動詞的被動語態(tài)含有情態(tài)動詞的主動句變成被動句時，由“情態(tài)動詞be過去分詞”構(gòu)成，原來帶to的情態(tài)動詞變成被

17、動語態(tài)后“to”仍要保留。歌訣是：情態(tài)動詞變動，情態(tài)加be加“過分”，原來帶to要保留。例如：We can repair this watch in two days.This watch can be repaired in two days.They should do it at once.-( It should be done at once.)自我測評一：1. Tom doesnt have to be made . He always works hard. A1earn Bto learn C. learned D. learning2The bridge over the r

18、iver three years ago Ais finished Bwas finished Cwas finish Dhas finished3. A present me by my friend on my birthday. Ais giving Bwas given to Cis given for Dwill give to 4The old men and the child in our country Amust take good care Bmust be taken good care Cmust take good care Of D.must be taken g

19、ood care of5A talk on English history in our school hall last week Ais given Bwas given Chas given Dwill give6His father bought a computer for him last month(改為被動語態(tài)) A computer for him last month7 He often makes me do housework(改為被動語態(tài)) I am often houseworkSection B一、根據(jù)漢語完成句子。1.Do you like the _ ( 酸的

20、 ) taste ?2.You will see a lot of _ ( 古老的 ) buildings in Xian.3. I didnt _ ( 注意到 )what she wrote yesterday.4. Twins songs are _ ( 令人愉快的 ).5.Ive got seven days holiday _ (包括) New Years Day.二翻譯下列句子或短語。by mistake _ not until _ by accident _in this way _ knock into _ divide into _離開（ ） 幸虧（ ） 到目前為止（ ）二、重

21、點(diǎn)講解及課堂練習(xí)重點(diǎn)單詞1、salty adj. 咸的、含鹽的 例：The oceans of the world are salty. 世界上的海洋都含鹽。拓展salt n. 鹽 例：Please pass me the salt. 請把鹽遞給我。2、sprinkle v. 撒（粉末狀物），灑（液體） 例：Please sprinkle some pepper and salt on the fried chicken. 請?jiān)谡u上撒點(diǎn)胡椒粉和鹽。3、notice v. 注意到，常用于兩個詞組，notice sb. do sth. 注意到某人干了某事；notice sbdoing sth注意

22、到某人正在干某事。例: She didnt notice me .她沒有注意到我。 I noticed him enter the office 我注意到他進(jìn)了辦公室。拓展notice還可作名詞，“通告，布告，通知；公告，告示，啟示；注意”等意思。例：Please write the notice on the blackboard 請把通知寫到黑板上。自我測評1He (注意到)that she had left already 2The soup is kind of (咸)3They (撒)sand on the floor4Please dont smoke hereLook at th

23、at sign Sorry，I (not notice) it5I noticed him into the classroom just now。 A. was going Bcame Cgo Dwent6They the grass water twice a week A. sprinkle ; on Bsprinkle；with Csprinkling；with， Dsprinkling；on7The soup tastes . Maybe I added too much just now A. salt; salt B. salty; salty C. salt; salty D.

24、 salty; salt重要短語1、by mistake 錯誤地例：I was in such a hurry that I took my brothers bag by mistake and didnt find out about it until I got on the train. 匆忙中我錯拿了弟弟的書包，而且直到上火車后才發(fā)現(xiàn)。 分析mistake n. 誤會，錯誤，過失 常用詞組make a mistake或make mistakes出錯，犯錯誤 例：I made some mistakes in my English test我在英語測試卷里出現(xiàn)了幾個錯誤。2、accor

25、ding to 按照，根據(jù)，依據(jù)所說，后面常跟名詞例：Answer the fo1lowing questions according to the text 根據(jù)課文回答下列問題；According to the weather reporter, there will be rain tomorrow據(jù)天氣預(yù)報(bào)員所說，明天將有雨。3、divideinto 把分成例：Lets divide ourselves into several groups. 我們分成幾個小組吧。 特殊句型1、So leaves form a nearby bush fell into the water and r

26、emained there for some time. 附近的一棵灌木樹上的幾片葉子落進(jìn)了水中并在那里逗留了一段時間。分析 (1)nearby adj附近的，指空間上的近。 例：He lives in the nearby town他住在附近的一個小鎮(zhèn)里。(2)remain 停留，逗留，留下，保持，可作系動詞，后接形容詞表狀態(tài)。例：I remained in London until May. 我在倫敦一直待到五月。 The door remains closed 門關(guān)著。(3) fall into 落入，陷入 例：He saved the boy falling into the wate

27、r. 他救起落水的男孩。2、The emperor noticed that the leaves in the water produced a pleasant smell. 這位皇帝注意到水中的葉子發(fā)出一種令人愉快的氣味。分析（1）produce 1) 出產(chǎn)；生產(chǎn)；制造 例：America produced more cars this year than last year美國今年生產(chǎn)的汽車比去年多。 2）演出；出版 例：We produced a new play last night. 昨晚我們上演一部新劇。（2）pleasant 令人愉快的，舒適的，合意的，修飾物；同義詞 ple

28、ased 高興的例： Im pleased to see you見到你我很高興。 Its pleasant for me to see you看到你真叫我高興。自我測評:1The beautiful scenery will （留在）in my memory for ever.21 went to the city，but my parents at home. A、got Bremained Cstaying Dremaining3They are very to have a party Aplease Bpleased Cpleasant Dpleasure4Salt mostly (p

29、roduce) in Tianjin疑難句子1、Later he decided to taste the hot mixture . 后面他決定品嘗這種熱的混合物。注意decide to do sth“決定去干某事”的意思。拓展(1)taste的用法; 1)嘗，品嘗，辯味；嘗出的味道；嘗到，感到，體驗(yàn)；例：Please taste the soup and see if it has enough salt 請嘗一口湯，看鹽夠不夠。 It tastes sweet這東西吃起來很甜。 2) 味道，滋味，味覺 例：Its bitter to the taste這味道是苦的。 Sugar has

30、a sweet taste糖有甜味。 (2)mixture 混合物，混合體 例)Air is a mixture of gases空氣是各種氣體的混合物。2、Knocking into players and falling down would be dangerous撞上選手摔一跤可能很危險(xiǎn)。分析(1)句中使用了動名詞作主語，需要注意的是動名詞作主語時謂語動詞用第三人稱單數(shù)形式。 例：Walking on the grass is not allowed 禁止在草地上行走。 (2)knock into sb意為“撞到某人身上”。 例：When you knock into somebody

31、，you should say sorry。當(dāng)你撞到別人的時候，應(yīng)該說對不起。3、Basketball has also become a popular sport for people to watch , and many young people dream of becoming famous basketball players籃球也已成為更受觀眾喜愛的；年輕人渴望成為著名的籃球選手。 例：Its time to go該走了。(單純的修飾關(guān)系) He was the first teacher to come 他是第一個來的老師。（邏輯主謂關(guān)系） Do keep your prom

32、ise to write to us. 一定遵守諾言給我們寫信。(邏輯同位關(guān)系)2)dream of夢想，向往，渴望 該短語為動介短語，后接名詞、代詞或動名詞。 例：Little did I dream of ever seeing you again 我做夢也沒有想到會再見到你。自我測評一:1I wasnt careful enough to an old man while walking along the street Aknock off Bknock up C knock into Dknock out2The milk strangeDo you think its OK to

33、drink? AWas tasted Btasted Cis tasting Dtastes3In the end, we decided (visit) the Great Wall4It is important for you (read) English every day5Linda dreams of (visit) the Great Wall some day6Thomas Edison saved money (build) his own lab.自我測評二：把主動語態(tài)改為被動語1、We dont clean the classroom every day. The classroom _ every day.2、We keep the noise under 50 dbs(分貝) here . The noise_ under 50 dbs here.3、Did they plant many fruit trees on the hill last spring? Many fruit trees on the hill last spring?4Someone saw him swim in a Lake yesterday . He to swim in a Lake yesterday.5、Do many pe