重大版高中英語4冊u(píng)nit1教案

1、Unit 1 Plant WorldTeaching Aims:1. Know the use of the new words.2. Improve the Ss reading ability Teaching Important Points:1. Improve the Ss reading ability.2. The new words.3. Language pointsTeaching Difficult Points:4. Improve the Ss reading ability.Master the new words.Language points.Teaching

2、Aids:a tape recordera projectorthe blackboardTeaching procedures:Period1 Getting ReadyStep1 GteetingGreet the students as usual.完成Getting Ready中的第1項(xiàng)1) 仔細(xì)觀察投影儀上的兩幅畫，鼓勵(lì)學(xué)生積極思考：可以看到竹子的什么部分？2) 迅速匯集學(xué)生的反饋意見，學(xué)生可用漢語表達(dá)，引導(dǎo)他們說出：枝干、竹筍、葉、莖等。3) 擇機(jī)把生詞branch, stem, shoot, pulp等引出，并表在圖上相應(yīng)的部位。Step2 第二項(xiàng)活動(dòng)1） 指著屏幕上的畫，用剛學(xué)

3、會(huì)的新詞來描述，把colored word 逐步引入，形象描繪。2） 給學(xué)生五分鐘左右的時(shí)間完成選詞替換的任務(wù)，然后叫學(xué)生大聲地朗讀出來。Step3 第三項(xiàng)活動(dòng)1） 再次觀察圖畫，請(qǐng)同學(xué)大膽推測竹子是“草”還是“樹”，并說出充分理由。2） 鼓勵(lì)同學(xué)用英語表達(dá)，教師注意掌握時(shí)間。3） 事先準(zhǔn)備一種或幾種竹制品，如筷子、果盤等，鼓勵(lì)學(xué)生說出盡可能多的用途。參考答案：1. branch, leaf, stem, shoot2. a, a, a, b, b, b, a, b, a3. openPeriod 2ComprehendingStep1 GteetingGreet the students a

4、s usual.本篇文章Bamboo是一篇典型的知識(shí)性說明文，但難度不是很高，非常適合精讀課文。它首先說明竹是什么，從而消除人們的誤解；然后介紹了竹子的種類，形態(tài)特點(diǎn)，生長特性；第三部分著重工業(yè)、農(nóng)業(yè)、生活三方面介紹了竹子的用途，同時(shí)這部分也是文章的重點(diǎn)。要求學(xué)生閱讀時(shí)，對(duì)Margin Notes中的問題進(jìn)行思考。重點(diǎn)在于根據(jù)語境和圖畫猜測詞義。Step 2 處理Getting Ready中的第3項(xiàng)1） 鼓勵(lì)學(xué)生想象出“竹”在生活中的利用。2） 給學(xué)生限定的時(shí)間，要求學(xué)生“略讀”，找出文中所介紹的用途。3） 請(qǐng)同學(xué)把竹的用途進(jìn)行歸類，并闡述理由。4） 迅速訂正，簡要說明原因。Step 3處理C

5、omprehending中的第1項(xiàng)1） 教師引導(dǎo)全體學(xué)生把所給出的8個(gè)句子先理解一邊，看是否有困難。2） 讓學(xué)生在限定的時(shí)間內(nèi)閱讀，并判斷8個(gè)句子的正誤。老師注意掌握整個(gè)閱讀過程，注意及時(shí)幫助有困難的學(xué)生。3） 檢驗(yàn)學(xué)生的閱讀效果，如有錯(cuò)誤，組織全體同學(xué)指出并糾正。Step 4處理Comprehending中的第3項(xiàng)1） 學(xué)生在老師的指導(dǎo)下先觀察Comprehending中第二項(xiàng)中的內(nèi)容，提示左邊黑體字的含義，進(jìn)而學(xué)生指導(dǎo)該怎樣做。2） 學(xué)生運(yùn)用“跳讀”的方法找到答案，完成填空。3） 教師控制整個(gè)閱讀過程，觀察并及時(shí)提供幫助。4） 檢查效果引導(dǎo)學(xué)生歸納得出結(jié)論，即文章分為三部分：是什么，種類，

6、用途。Step 5處理Comprehending中的第3項(xiàng)1） 小組或同桌討論，在第二項(xiàng)活動(dòng)的基礎(chǔ)上，再回到文中去找答案。2） 教師注意控制教室氣氛，適當(dāng)提示有困難的學(xué)生。3） 檢驗(yàn)效果，訂正答案。Step 6 處理Comprehending中的第4項(xiàng)第1小題學(xué)生獨(dú)立思考完成第一小題，并寫在作業(yè)本上。Step 7處理Comprehending 中的第4想第2,3小題1） 采取二人或多人討論完成第二小題，鼓勵(lì)有想象力的答案，口頭表達(dá)。2） 讓學(xué)生課后閱讀資料，討論完成，對(duì)于學(xué)生的答案，要求其有充足的理由。Periods 3-4Language points in ReadingStep1 Gte

7、etingGreet the students as usual. Check the homework.Step2 Language points in Reading 1. Have you ever see grass growing high as a treeeven a tall tree?你曾見過哪種草長得和大叔一樣高嗎？growing high as a tree是現(xiàn)在分詞后置作定語，與其修飾的名詞之間存在主動(dòng)關(guān)系（主謂關(guān)系）或表達(dá)進(jìn)行意義，此句中g(shù)rowing high as a tree是現(xiàn)在分詞短語做定語，相當(dāng)于定語從句which grows high as a tree

8、.The taxi taking (= which took) us to the airport broke down.載我們?nèi)C(jī)場的出租車拋錨了。Can you think of the name of a flower beginning (= which begins) with “t” ?你能想到“t”開頭的花名嗎？*擴(kuò)展 v-ed, to do也能作后置定語，但意義有所不同：1）v-ed作后置定語，強(qiáng)調(diào)與其修飾的名詞之間存在的被動(dòng)關(guān)系（動(dòng)賓關(guān)系）或表達(dá)完成意義。The experience gained ( which has been gained) will be of gre

9、at value for us.獲得的經(jīng)驗(yàn)會(huì)對(duì)我們有很大的價(jià)值。Some of the people invited ( who have been invited) to the party cant come.有些收到邀請(qǐng)的人沒有來參加聚會(huì)。2）to do 做后置定語，側(cè)重表達(dá)不定式的動(dòng)作稍后發(fā)生。There are many trees to plant.有許多樹要種Would you like something to eat? 你想吃點(diǎn)什么嗎？2. It grows up straight and thin, with branches at the top.它筆直修長，頂端長著枝葉

10、。grow up1) （指人或物）長大，成年，成熟She is growing up quickly.The tree planted by the president has grown up.2) 發(fā)展A close friendship gradually grew up between them.他們之間的友誼日益親密。*辨析 grow up grow up to be grow into grow fromThe small tree has grown up to be a big tree.grow into 漸漸成為，變得，變得習(xí)慣于（新工作、角色）She is growing

11、 into a beautiful young woman.她已漸漸出落成美麗的姑娘。grow from 生長，發(fā)育Plants grow from seeds.植物是由種子發(fā)育而成的。with branches at the top, with 的復(fù)合結(jié)構(gòu)作狀語with + n. + adj.He lay in bed, with his eyes wide open.with +n. + adv.He fell asleep with the light on.with + n. + prep. phraseHis wife came down the stairs, with her b

12、aby in her arms.with + n. + 現(xiàn)在分詞The day was light, with a fresh breeze blowing.with + n. + 不定式With so much work to do, I cant go to the movie.with +n. + 過去分詞All the afternoon he worked with the door locked.3. It has long leaves that sway in the wind like slim fingers reaching to touch something.長長的竹

13、葉在風(fēng)中搖擺，就好像伸出纖細(xì)的手指去觸摸什么。此句中that sway in the wind like為定語從句，修飾leaves, reaching to touch something 為現(xiàn)在分詞短語后置作定語，修飾fingers, 相當(dāng)于定語從句 thatwhich reach to touch something.4. Not all bamboo grows tall.并不是所有的竹子長得都很高。此句所表達(dá)的意義是部分否定。結(jié)構(gòu)為not all= all not 可譯為“并非。都?！盢ot all of them went to see the film last night.昨晚

14、不是所有的人都去看了電影。= All of them did not go to see the film last night.Im not always at home on Sunday.我并非所有的星期天都在家。*歸納：部分否定和全部否定的表達(dá)方式：部分否定：在被否定的詞前面加not或在謂語動(dòng)詞前加notAll that glitters is not gold.閃光的東西并非都是金子。Not many things are of use in the form in which they found.許多東西并非在塔門處于被發(fā)現(xiàn)的形式時(shí)就是有用的。全部否定：none of, neit

15、her of, nothing, none, nobody, neither, never, nowhere, nor, neithernor,Nothing there is good.那里沒有一件東西是好的。Neither of you can go swimming.你們倆都不能去游泳。He cant do it, nor can you.他做不了，你也做不了。*擴(kuò)展：英語句子中的否定形式很多，除了全部否定，部分否定之外，還有雙重否定，意義否定，前后綴否定等。Without honesty nothing can be accomplished in the world.在世界上要辦成幾

16、件事，沒有老老實(shí)實(shí)的態(tài)度是根本不行的。No pains, no gains.不勞無獲。There is little food for us. What shall we do?我們幾乎沒有吃的了，該怎么辦呢？Its useless talking with him. Youd better find the manager.跟他談沒用，你最好去找經(jīng)理。5. There are more than 500 different kinds of bamboo in all, and some grow no higher than your ankles.總共有500多種竹子，它們當(dāng)中有些長得還

17、不及你的腳踝。more than 表示“超過，不僅僅”，后接名詞、形容詞、副詞、或從句。It never takes more than an hour.從不會(huì)超過一個(gè)小時(shí)。The result was more than he imagined.結(jié)果超出他的想象。He is more than our teacher; he is our friend.他不僅僅是我們的老師，他更是我們的朋友。*辨析：more than, morethan, no more than, not more than, no morethan, not more than1) more than超過，不僅僅 mo

18、rethan比。更多，與其說，勿寧說When her son lied again, she was more sad than angry.當(dāng)兒子再次撒謊的時(shí)候，與其說她憤怒不如說她悲哀。Mr. Zhang is more a scholar than a teacher.張老師與其說是個(gè)老師，不如說是個(gè)學(xué)者。2）no more than (= only) 不過，僅僅 not more than (= at most, less than) 頂多，不超過Its useless talking with him. Hes no more than a clerk.跟他談沒用，他不過是個(gè)職員。T

19、here are not more than eight students on the playground.操場上頂多有八個(gè)學(xué)生。3) no mmore than和。一樣，和。一樣不 not morethan不及。I often make mistakes iin my homework, and Mary is no more careful than I am.= as careless as I am我經(jīng)常作業(yè)出錯(cuò)，瑪麗和我一樣粗心。Hearing the news, she is no more satisfied than me.= Neither of us is satisf

20、ied.聽到那個(gè)消息，她和我一樣不滿意。This story is not more interesting than the first one.= This story is less interesting than the first one.這個(gè)故事沒有第一個(gè)故事有趣。in all 總共，總計(jì)(= altogether, in total)There were twelve of us in all for dinner.我們總共有12個(gè)人吃飯。no higher than= as short asnot higher than= shorter thanThis book is n

21、o cheaper than the one you bought.= This book is as expensive as the one you bought.這本書和你買的那本一樣貴。6. But the most interesting thing about this remarkable plant is what people do with it after it is cut down.這種不可思議的植物最讓人感興趣的還在于人們把它們砍到之后對(duì)它的處置和利用。what 引導(dǎo)的表語從句。表語從句的連詞與賓語從句的連詞相似，由三類構(gòu)成：that, wether,or when

22、, what等特殊疑問詞。此句的表語從句中動(dòng)詞do 后缺少表物的賓語，故用連詞what引導(dǎo)。The question is whether they will come and when they will come.問題是它們是否會(huì)來，什么時(shí)候來。He came late again. The reason was that he overslept and missed the school bus.他又遲到了。原因是他睡過了頭，錯(cuò)過了校車。do with sth 表示“處理，對(duì)付”相當(dāng)于deal with sth 但是do with往往與what 連用，而deal with 往往與how

23、連用We dont know what to do with the air pollution.我們不知道如何處理空氣污染。What are we going to do with the food left over from the party?我們怎么處理聚會(huì)剩下的食物？How we can deal with the problem is unknown.我們?nèi)绾翁幚碓搯栴}還不清楚。7. They are hallow, which makes them very light.竹竿是中空的，這使得它很輕巧。which 引導(dǎo)的非限定性定語從句，既能對(duì)前句中的名詞進(jìn)行補(bǔ)充，也能說明前面整

24、個(gè)句子。She heard a terrible noise, which brought her heart into her mouth.她聽到一個(gè)恐怖的聲音，嚇得心臟都快跳到嘴里了。The weather turned out to be very good, which was more than we could expect.結(jié)果天氣很好，這超出了我們的預(yù)料。*辨析：which 和 as 都能引導(dǎo)非限定性定語從句，二者用法如下1) 當(dāng)主句和從句的語義一致時(shí)用as,反之用whichHe made a long speech, as was expected.他做了冗長的演講,這一點(diǎn)大

25、家都料到了。He made a long speech, which was unexpected.他做了冗長的演講，這出乎大家的意料。2) 當(dāng)非限定性定語從句為否定句時(shí)，常用which 引導(dǎo)Tom drinks a lot every day, which his wife doesnt like at all.湯姆每天喝大量的酒，這是他太太很不喜歡的。3)which引導(dǎo)的定語從句一般放在主句后，as引導(dǎo)的定語從句放在主句前后均可。As everybody knows, Chongqing is a very beautiful city.人人都知道重慶是一個(gè)美麗的城市。4) 當(dāng)as 在定語

26、從句中作主語時(shí)，后面常接下列句型：as is know, as is said, as in reported, as is announced等As is known to all, Mr. Wang is a good teacher.眾所周知，王老師是一位好老師。5) as引導(dǎo)的定語從句要譯為“像。一樣”，而which引導(dǎo)的非限定性定語從句要譯為兩個(gè)并列句。As we all expected, he succeeded in passing the important exam.像我們期待的那樣，他成功地通過了那個(gè)重要的考試。The sun, which rises from the

27、east, is red.太陽是紅色的，它從東方升起。8. In warm countries. many people have their houses made almost entirely of bamboo, the walls, the roof, and the floor.在氣候溫暖的國家，許多人家的房子，包括墻，屋頂和地板都是用竹子做的。have sth done 請(qǐng)人做某事，強(qiáng)調(diào)使某事予以處理Why dont you have your hair cut?你怎么不理發(fā)呢？The wash machine I had had repaired last week went

28、wrong again.我上星期剛拿去修過的洗衣機(jī)又壞了。*辨析：have sb do have sb doing have sth to do have sbsth done1)have sb do命令或安排某人做某事，相當(dāng)于make sb do let sb doIll have the pardoner plant some tees.我要讓園丁種一些樹。Have the driver bring the car round at 4:00.叫司機(jī)四點(diǎn)左右開車過來。2)have sb doing 讓某人持續(xù)做某事The boss had his workers working for 1

29、4 hours a day, which made them very unhappy.老板讓員工每天工作長達(dá)14小時(shí)，這使得員工很不高興。3)have sth to do有事情要做I cant go with you because I still have a lot of homework to do.我不能跟你去因?yàn)槲疫€有許多作業(yè)要做。4) have sth done請(qǐng)人做某事9. Nearly everything inside their houses is made of bamboo, too.而且房內(nèi)的陳設(shè)幾乎都是竹制的。nearly 幾乎，很接近地（客觀描述）Nearly

30、everyone has known the result.幾乎每個(gè)人都知道結(jié)果了。The bottle is nearly empty.瓶子快空了。She nearly won first prize.她差點(diǎn)獲得一等獎(jiǎng)。（習(xí)語）not nearly 相關(guān)很遠(yuǎn)，遠(yuǎn)遠(yuǎn)少于There isnt nearly enough time to learn all these words.要把這些新詞都學(xué)會(huì)，時(shí)間遠(yuǎn)遠(yuǎn)不夠。*辨析：almost（主觀估計(jì)）& nearly1)多用于形容詞、副詞、動(dòng)詞前，可以和nearly互換Its a mistake they almost always make.這是一個(gè)

31、他們幾乎總在犯的錯(cuò)誤。Dinner is almost ready.晚餐差不多好了。2)還可用于表否定的詞no, nobody, none, nothing, never之前（nearly不能與這些詞連用）Almost no one believed him.幾乎沒人相信他。The speaker said almost nothing worth listening to.那個(gè)演講者幾乎沒說什么值得聽的內(nèi)容。10. Who can tell what the new use someone may find for this special kind of grass bamboo?也許將來

32、人們會(huì)發(fā)現(xiàn)這種特殊的草竹子還有其他用途，誰知道呢？tell與情態(tài)動(dòng)詞cancould 連用，表示“區(qū)分，辨別，說出”I cant tell the difference between margarine and butter.我嘗不出人造黃油和黃油有什么區(qū)別。Can you tell Tom from his twin brother?你能分辨湯姆和他的孿生兄弟嗎？-These kittens look exactly alike.-How can you tell which is which?Periods 5Word PowerStep1 GteetingGreet the students as usual. Check the homework.Step2寫詞練習(xí)1)請(qǐng)學(xué)生認(rèn)真閱讀所給出的英文解釋，注意所給詞的詞性2)在理解了詞義的基礎(chǔ)上，回到課文中，找出并標(biāo)記出這些詞匯。3)學(xué)生通過課文提供的語境，檢測自己對(duì)這止匕詞的理解。4)不參考課文，回到練習(xí)中，正確地拼寫出這些詞匯Step 3 1)學(xué)生認(rèn)真閱讀這8個(gè)句子，理解其句意。同時(shí)注意畫線部分的含義。2)從前一個(gè)練習(xí)中的