必修3unit 4 復(fù)習(xí)課--李甜甜--高密四中

1、Learning Aims :1.Review the key words, phrases and their usage .2. Master some practical sentence structure and grammar. 3. Use what have been taught to write a mini-composition.課前熱身課前熱身Warming Up1._ n.天文學(xué)天文學(xué)2._ pron，n.& adj. 十億十億3._ adj.猛烈的，激烈的猛烈的，激烈的4._ n.大氣層；氣氛大氣層；氣氛5._ adj.有害的有害的6._ adv.因此；于

2、是因此；于是7._ n.衛(wèi)星；人造衛(wèi)星衛(wèi)星；人造衛(wèi)星8._ n.氣候氣候9._ n.謎，難題謎，難題v.使迷惑使迷惑10._ v.存在，生存存在，生存astronomybillionviolentatmosphereharmfulthussatelliteclimatepuzzleexistKey words11.religion n. _12.theory n. _13.globe n. _14.fundamental adj. _15.multiply v. _16.oxygen n. _17.gravity n. _18.crash v. _宗教，宗教信仰宗教，宗教信仰學(xué)說，理論學(xué)說，理

3、論球體；地球儀；地球球體；地球儀；地球 基本的；基礎(chǔ)的基本的；基礎(chǔ)的乘；增加乘；增加氧氣氧氣萬有引力；重力萬有引力；重力碰撞；墜落碰撞；墜落1. 及時及時;終于終于 _2. 輪到某人輪到某人;接著接著 _3. 阻止阻止;制止制止 _4. 感到高興感到高興;感到興奮感到興奮 _5. 既然既然 _6. 爆發(fā)爆發(fā);突發(fā)突發(fā) _7. 密切注視密切注視;當(dāng)心當(dāng)心;提防提防 _watch out in timein ones turnprevent .from (doing).cheer upnow thatbreak out8. 依賴；依靠依賴；依靠 _9. 四面八方四面八方 _10. 摔倒；跌倒摔倒；

4、跌倒 _11.lay eggs _12.give birth to _13.block out _14 get the hang of _15.cool down _冷卻下來冷卻下來depend onin all directionsfall over下蛋下蛋產(chǎn)生，分娩產(chǎn)生，分娩擋住擋住(光線光線)掌握，熟悉；理解掌握，熟悉；理解即時練習(xí)即時練習(xí)1. What would happen if there were no _(大氣層大氣層).2. The government is encouraging the _(發(fā)展發(fā)展) of small businesses.3. Fruit juic

5、es can be _ (有害有害)to childrens teeth.4. Sault _(存在存在) in the ocean.5. My sister is _(不像不像) my mother. She _(不喜歡不喜歡) little animals.6. The earth became so _ that it was not clear whether the shape would last or not.atmospheredevelopmentharmfulexistsunlikedislikesviolent課內(nèi)探究課內(nèi)探究(1)prevent.from.阻止某人做某事

6、=stop.from. /keep.from. 注意：注意：keep后的后的from不能省略；在被動語態(tài)中，此三個不能省略；在被動語態(tài)中，此三個短語的短語的from 均不可省略。均不可省略。(2)protect.from.保護(hù)免受活學(xué)活用1.She _her eyes from the sun with her hand.她用手遮住太陽保護(hù)眼睛。2.We must do what we can to prevent the rivers from _ by factories.Ato pollute Bto be pollutedCpolluting Dbeing pollutedDprote

7、ctedStep1: Word Usage2.puzzle n.迷；難題迷；難題 v.(使使)迷惑；迷惑；(使使)為難為難活學(xué)活用活學(xué)活用1. His recent behavior _ (使我迷惑不解使我迷惑不解).2. His answer sounds _(puzzle) and we are all_ (puzzle).3. _at what had happened，she decided to look into the matter on her own.APuzzle BTo puzzled C Puzzled DPuzzlingpuzzled mepuzzlingpuzzle

8、d _n.& v. 傷害，損害傷害，損害 _adj.無害的，無惡意的無害的，無惡意的 _(搭配搭配)對對有害有害 3.harmful adj. 有害的有害的harmharmlessbe harmful to=do harm to 活學(xué)活用1.As we all know，smoking is _ to our health. Thats to say，it does_ to our health. harmfulharm1.原句：原句：It was not immediately obvious that water was to be fundamental to the devel

9、opment of life.水對于生命的發(fā)展會起關(guān)鍵作用，這一點(diǎn)水對于生命的發(fā)展會起關(guān)鍵作用，這一點(diǎn)在當(dāng)時并不明顯。在當(dāng)時并不明顯。 句型：句型：It is obvious that. 顯然顯然It用作形式主語用作形式主語, that 從句是真正的主語從句從句是真正的主語從句1.很明顯他昨天沒有說實(shí)話。很明顯他昨天沒有說實(shí)話。_ yesterday.2.After 5,000 years of history，_is no surprise that many Chinese people have become pretty set in their ways.Ait Bthat Cwhi

10、ch DthereStep2: Key Sentences Structure1.If the factories keep on sending off this kind of smoke，great harm will be _to the living things here.Amade Bdone Ctaken Dsuffered2.The nurse tried to _ up the little boy when he started to cry.Acheer Bdress Cget DMake3._everyone is here，lets begin our meetin

11、g!ANow that BThat CAs if DIf4.They couldnt agree with each other and finally a quarrel _ between them.Abroke up Bbroke down Cbroke out Dbroke inpracticeBAAC2.原句：原句： This produced a chain reaction，which made it possible for life to develop.這這就產(chǎn)生了一系列的連鎖反應(yīng)，使得生命就就產(chǎn)生了一系列的連鎖反應(yīng)，使得生命就有可能開始發(fā)展了。有可能開始發(fā)展了。句型：句型

12、：make it+adj.+for sb.to do使某人使某人做某事做某事說明：說明：it是形式賓語，是形式賓語，for sb.to do是真是真正的賓語。正的賓語。 it作形式賓語時不僅可代替不定式，還可代替動作形式賓語時不僅可代替不定式，還可代替動名詞和句子。名詞和句子。 We consider it no use _the problem with him. 我們認(rèn)為和他討論這個問題沒用。我們認(rèn)為和他討論這個問題沒用。 The book_ English. 這本書使我學(xué)習(xí)英語容易多了。這本書使我學(xué)習(xí)英語容易多了。 makes it easy to learndiscussing3. 原

13、句原句 Why they suddenly disappeared still remains a mystery.他們?yōu)槭裁磿蝗粶缃^至今還是個謎。（1）本句中why they suddenly disappeared是名詞性從句在句中作主語，引導(dǎo)詞是關(guān)系副詞why，在從句中作原因狀語。 （2）Remain作系動詞意思是“保持，仍然是”，其后常接名詞、形容詞、分詞和介詞短語作表語。（3）remain也可以接被動結(jié)構(gòu)的不定式，意思是“尚待 、有待于”。如：It remains to be seen whether you are right.你是否正確，以后見分曉。translation1.

14、有好幾個問題尚待解決。_2.她整個晚上沉默不語。 _Several problems remain to be solved.She remained silent all night.4. 原句原句 But when I tried to step forward，I found I was carried twice as far as on the earth and fell over.而當(dāng)我試著向前邁步的時候，而當(dāng)我試著向前邁步的時候，我發(fā)覺我被送出去很遠(yuǎn)，步子的跨度竟是在地球我發(fā)覺我被送出去很遠(yuǎn)，步子的跨度竟是在地球上的兩倍，因而我摔倒了。上的兩倍，因而我摔倒了。倍數(shù)的表達(dá)式“A倍

15、數(shù)形容詞或副詞比較級比較級thanB”，表示“A比B大(長、高、寬等)多少倍”?！癆倍數(shù)as形容詞或副詞原級原級asB”，表示“A是B的多少倍”?！癆倍數(shù)the size/height/widthofB”，表示“A正好是B的多少倍”。我的房子是我父母的兩倍大。我的房子是我父母的兩倍大。My house is twice bigger than my parents.My house is twice as big as my parents.My house is twice the size of my parents.Noun Clauses(名詞性從句名詞性從句)Subject Clau

16、se (主語從句主語從句)Appositive Clause（同位語從句）（同位語從句）Object Clause（賓語從句）（賓語從句）Predicative Clause（表語從句）（表語從句）1. 用用 that / whether / if/ /where / how / when /why / who /what/which/ how much / etc. 來連接主語從句來連接主語從句.Summary:Subject Clause3.引導(dǎo)主語從句在引導(dǎo)主語從句在句首句首只能用只能用whether,有有it作形式主語的作形式主語的whether/if都可以都可以.2.That 在主語

17、從句中在主語從句中不能省略不能省略.4.有時為了使句子有時為了使句子結(jié)構(gòu)平衡結(jié)構(gòu)平衡, 避免避免 “頭重腳輕頭重腳輕”,常用常用 it 作形式主語作形式主語,而把從句放在后面而把從句放在后面.5.主語從句作主語時，謂語動詞一般用單數(shù)形式。主語從句作主語時，謂語動詞一般用單數(shù)形式。2. _ they can solve the question is still unknown. A. If B. Which C. Whether D. What3. _ he said at the meeting astonished everybody. A. Why B. What C. That D.

18、Who4. _ is a fact that English is accepted as an international language. A. There B. This C. That D. It1. _ we need more practice is quite obvious. A. What B. That C. When D. / Pick up one number and finish the task in it, then you can get some points.1234567891011 12 13 14 15 16 17 18 19 2021 22 23

19、 24 25 26 27 28 29 30Correct or not?*When the meeting will be held havent been known yet. be held hasnt been known yet.Pay attention:主語從句的謂語用主語從句的謂語用單數(shù)單數(shù)形式形式 10 the cat domade What the cat did made the baby cry.WhatcryMake a sentence301.The question is _ the film is worth seeing.2._ we shall attend

20、the meeting hasnt been decided yet. 用用whetherif填空填空whetherWhether10Translate the sentence*_(他他們很需要幫助們很需要幫助)is quite clear. That they are badly in need of help20talk aboutthe use of cell phone What they are talking about is the use of cell phone.Make a sentence30* If we will have a meeting hasnt been

21、 decided yet.Correct or not?Whether we will. decided yet.Pay attention:放在名詞性從句放在名詞性從句句首句首，表示，表示“是否是否”，只能用，只能用whether, 不能用不能用if10Translate the sentence*It is known to us_(馬克馬克.吐溫怎樣成吐溫怎樣成為一位偉大的作家為一位偉大的作家). how Mark Twain became a great writer20report , get the highest points, match It is reported that

22、 Yao Ming got the highest points in the match.Make a sentence30 Correct or not?Pay attention:注意注意虛擬語氣虛擬語氣在名詞性從句中的在名詞性從句中的使用！在使用！在It is necessary important natural. that句型中，從句的謂語要用句型中，從句的謂語要用should+do 的形的形式式It is important that we should finish.*It is important that we will finish the work on time. 1

23、0 Correct or not?Pay attention:此主語從句此主語從句缺少成分缺少成分-賓語，賓語，故用作成分的故用作成分的what來引導(dǎo)，而不用來引導(dǎo)，而不用that。What she wants to know is.*That she wants to know is when the party will be held . 10 Correct or not?Pay attention:由由that引導(dǎo)的主語從句放在句引導(dǎo)的主語從句放在句首，首，that 不能省略不能省略。That he will give up*He will give up his job surpr

24、ises all of us.10Translate the sentence*_（她是否出席會議）（她是否出席會議）is not certain.Whether she will attend the meeting20It makes the teacher angry that the child doesnt know the answer.teacher angryDont know the answerMake a sentence30拓展練習(xí)拓展練習(xí)-基礎(chǔ)寫作基礎(chǔ)寫作Step4: 知識的整合與運(yùn)用知識的整合與運(yùn)用A fire寫作要求寫作要求1. 1.使用幾個句子（簡單句，從句使用

25、幾個句子（簡單句，從句) )表達(dá)全部的內(nèi)容。表達(dá)全部的內(nèi)容。 2.2.注意句子之間的連貫性。注意句子之間的連貫性。能力提升能力提升 合作探究合作探究 (Discussion)1. 一天，一座高樓一天，一座高樓發(fā)生發(fā)生了大火，人們了大火，人們向四面八方向四面八方逃逃跑。跑。2. 幸運(yùn)的是，消防員幸運(yùn)的是，消防員及時趕來及時趕來救人。救人。3. 他們他們讓讓人們?nèi)藗兝潇o下來，輪流冷靜下來，輪流來救困在火中的人。來救困在火中的人。4.很顯然，很顯然，消防員消防員阻止阻止了火勢蔓延。了火勢蔓延。5. 由于他們的幫助，大火沒有由于他們的幫助，大火沒有傷害傷害到人。到人。6. 甚至一個要甚至一個要生寶寶生寶寶的婦女也沒有受傷。的婦女也沒有受傷。7.既然既然沒有人在大火中受傷，人們開始沒有人在大火中受傷，人們開始高興起來高興起來。1. 一天，一座高樓一天，一座高樓發(fā)生發(fā)生了大火，人們了大火，人們向四面八方向四面八方逃跑。逃跑。2. 幸運(yùn)的是，消防員幸運(yùn)的