必修三unit 5_教案

1、必修三 unit 5 Astronomy: Canade -“The True North適用學(xué)科英語適用年級(jí)高一適用區(qū)域全國課時(shí)時(shí)長分鐘2課時(shí)知識(shí)點(diǎn)1、本單元重點(diǎn)詞匯。2、名詞性從句中的表語從句和同位語從句。教學(xué)目標(biāo)1、掌握本單元局部單詞和短語的根本詞義和用法。2、通過本單元的學(xué)習(xí) ,要求學(xué)生熟練掌握表語從句和同位語從句的語用功能。教學(xué)重點(diǎn)通過上下文來教詞匯、語法 ,并引導(dǎo)學(xué)生分析長句、難句和復(fù)雜句。教學(xué)難點(diǎn)總結(jié)語言材料中有關(guān)表語從句和同位語從句的用法和功能并加以應(yīng)用。教學(xué)過程一、 課堂導(dǎo)入了解加拿大風(fēng)土人情。二、復(fù)習(xí)預(yù)習(xí) 教師引導(dǎo)學(xué)生復(fù)習(xí)上節(jié)課所學(xué)知識(shí)點(diǎn) , 以提問、回憶的形式進(jìn)行 ,針對(duì)

2、上節(jié)課的作業(yè)進(jìn)行講評(píng)、訂正、答疑 ,并通過對(duì)表語從句和同位語從句具體用法的分析和擴(kuò)展導(dǎo)入本節(jié)課所要學(xué)習(xí)的課本知識(shí)的學(xué)習(xí)。 三、知識(shí)講解考點(diǎn)/易錯(cuò)點(diǎn)1 重點(diǎn)單詞與短語學(xué)習(xí)multi- 是一個(gè)前綴。意為“多。(回歸課本P33) Canada is a multicultural country. 加拿大是一個(gè)多元文化國家。歸納拓展 multiply a.乘;繁殖 (multi + ply表動(dòng)詞變多乘) multiple a.多樣的;多功能的 (multi + pile多的多功能的)multilingual a. 多種語言的 (multi + lingual方向的)multidirectional

3、a. 多方向的 (multi + directional方向的)multiform a.多種多樣的 (multi + form形式)multicultural a.多種文化的 (multi + cultural文化的)multimedia a.多媒體的 (multi + media媒介)multitude a.多數(shù);群眾 (multi + tude狀態(tài)多的狀態(tài)多數(shù))rather than 并列連詞 ,而不是 (回歸課本P34) Rather than take the aero plane all the way, they decided to fly to Vancouver and th

4、en take the train from west to east across Canada.他們不想一路乘飛機(jī) ,而決定先飛到溫哥華 ,再從西海岸乘火車橫穿加拿大到東海岸。1、rather than: 意為“而不是、“而沒有 ,側(cè)重客觀上的差異 ,還可以表示“與其 ,倒不如或?qū)幙?,側(cè)重句子主語或說話人主觀上的選擇。句中 rather than 前后一般應(yīng)為名詞、代詞、動(dòng)名詞、形容詞、謂語動(dòng)詞、動(dòng)詞不定式、介詞短語 ,甚至分句等。2、rather than做并列連詞。其前后都應(yīng)是相互對(duì)應(yīng)的詞語 ,但接不定式時(shí) ,?？墒∪ゲ欢ㄊ椒?hào) to 。 rather than 也可分開使用 ,和

5、would 或 had 構(gòu)成“ would / had rather than 結(jié)構(gòu) , than 前后也是相互對(duì)等的結(jié)構(gòu)。試比擬： 1) She would rather have the small one than the large one.     她寧愿要小的 ,也不愿要大的。 2) Tom would rather be liked than feared.歸納拓展 1、would ratherthan/other than/rather than/or ratherwould rather do sth. than do sth. els

6、e“寧愿做某事而不愿做別的 ,表示主觀愿望。使用這一結(jié)構(gòu)時(shí) ,than前后兩局部的成分應(yīng)對(duì)等。如果than后是動(dòng)詞 ,要用原形。例如：He would rather have the small one than the big one.do A rather than do B = rather than do B, sb. does A 某人不做B卻做A A rather than B 是A而不是B would rather do A than do B = would do A rather than do B 寧可做A而不做Bprefer to do A rather than do

7、B 最喜歡做A而不做Bwould rather sb. did/had done sth. 寧愿某人做某事2、or rather“與其說不如說；更確切地說；并非那樣 ,而是。例如：I'll meet him, or rather I'll ask him to meet me.我要會(huì)見他 ,或者更確切地說 ,我要請(qǐng)他來見我。3、other than“除了；除了以外 ,通常用于否認(rèn)句中。例如：I can't do other than obey.除了服從 ,我別無他法。settle v.安放;安排;安排;料理。(回歸課本P34) That afternoon aboard

8、 the train, the cousins settled down in their seats.歸納拓展及物動(dòng)詞 vt. 1. 安放;安排;安排;料理OHe settled his child in a corner of the compartment. 他把孩子安排在車廂的一個(gè)角落里。 2. 使(雜質(zhì))沉淀;使(液體)澄清3. 使(自己)安下心來;使(心情)平靜下來,使安寧After the excitement I tried to settle myself. 沖動(dòng)過后,我設(shè)法平靜下來。 4. 確定,決定+(that)+wh-I've settled that I

9、9;ll drop medicine and take up physics. 我已決定放棄學(xué)醫(yī),開始學(xué)物理。 5. 解決(問題等);結(jié)束(爭端、糾紛等)Both wanted to settle their scores. 雙方都愿意捐棄前嫌。 The question has been settled. 這個(gè)問題已經(jīng)解決了。 6. 使定居;殖民于H7. 支付,結(jié)算I have several bills to settle. 我有好幾筆賬要付。 不及物動(dòng)詞 vi. 1. 坐下;安排下來Q2. 停息;下沉;沉淀(+on/over/upon)The powder settled to the

10、bottom of the cup. 粉末都沉淀到杯底了。 3. 穩(wěn)定下來;平靜下來;鎮(zhèn)定下來(+down/to)She cannot settle to work. 她安不下心來工作。 settle down to 使某人安下心來做 settle (down) in . 在定居下來4. 和解;結(jié)束爭端(+with)5. 安家,定居;殖民QThe family has settled in Canada. 這家人已定居加拿大。 manage v.設(shè)法做成某事catch sight of 看到(回歸課本P34) they managed to catch sight of some mounta

11、in goats and even a grizzly bear and an eagle.她們?cè)O(shè)法看到了野山羊 ,甚至還看到了一只灰熊和一只鷹。1、manage to do sth.準(zhǔn)確的意思是：成功地做到了某事 ,是有明確結(jié)果的。也就是說、A managed to do sth. =A succeeded in doing sth. 歸納拓展 同義句型try to do sth. 指的是努力做某事try doing sth. 意思是

12、試著做某事。兩者動(dòng)作能不能“成功都不太確定。try doing sth. 往往隱含著做某事把握不是很大 ,還有些猶豫 ,可能會(huì)失敗 ,還要重試的意思。2、catch sight of 看到歸納拓展lose sight of 看不見have a sight of 看見at first sight of 初見at sight 一看見就in sight 在望；臨近out of sight 在視野之外eastward adv. 向東 adj. 向東的；朝東的(回歸課本P34)Going eastward, youll pass mountains and thousands of

13、lakes and forests.Eg: 1). They were traveling eastward(s) to the city which appeared in their dreams. 他們朝著東邊向夢(mèng)想中的城市進(jìn)發(fā)。2). The plane filed in an eastward direction. 飛機(jī)向東邊飛去。歸納拓展eastward(s) adj./adv. 向東的 ,向東地 southward(s) adj./adv. 向南的 ,向南地southeastward(s) adj./adv. 向東南的 ,向東南地northeastward(s) adj./adv

14、. 向東北的 ,向東北地southwestward(s) adj./adv. 向西南的 ,向西南地northwestward(s) adj./adv. 向東北的 ,向東北地westward(s) adj./adv. 向西的 ,向西地northward(s) adj./adv. 向北的 ,向北地have a gift for 有天賦thousands of 成千上萬的 (回歸課本P34)Many of them have a gift for riding wild horses and can win thousands of dollars in prizes. 它使地球把有害氣體溶解在海洋

15、里。1、 have a gift for 在方面有天賦。gift表示才能。類似表達(dá)有：have a talent for, have a genius for.2、thousands of: 用作基數(shù)詞單位的 hundred, thousand, million, billion 通常不帶復(fù)數(shù)詞尾-s ,但假設(shè)用于表示 數(shù)百、數(shù)千、數(shù)百萬這樣的泛指 ,那么用復(fù)數(shù)。如：About two thousand people died in the earthquake. 大約有兩千人在地震中喪生。Thousands of people go to the seaside every year. 每年

16、成千上萬的人到海濱去?？键c(diǎn)/易錯(cuò)點(diǎn)2 重點(diǎn)句子分析【教材原句】Some people have the idea that you can cross Canada in less than five days. (P34) 有人想在不到五天的時(shí)間內(nèi)穿越加拿大?！揪浞ǚ治觥看颂巘hat you can cross Canada in less than five days是同位語從句 , 是idea的同位語 ,用來說明idea的具體內(nèi)容?！窘滩脑洹縋eople say it is Canadas most beautiful city, surrounded by mountains and

17、 the Pacific Ocean. (p34) 人們說這是加拿大最美麗的城市 ,被大山和太平洋環(huán)繞?！揪浞ǚ治觥?、此處surrounded by mountains and the Pacific Ocean 是過去分詞作原因狀語 , 相當(dāng)于狀語從句because it is surrounded by mountains and the Pacific Ocean.過去分詞作狀語 ,表原因、條件 ,伴隨等。一般置于句首 ,也可置于句末。Eg： He soon fell asleep, exhausted by the journey.Seen from the hill, the ci

18、ty looks magnificent.Given good health, I hope to finish the work this year.They came in, followed by 3 children.2、 surrounding, adj. 周圍的 ,附近的 eg: surrounding country 【教材原句】 Because of the Great Lakes, they learned, Canada has more fresh water than any other country in the world.他們知道 ,因?yàn)槲宕蠛?,加拿大的淡水比

19、世界上任何國家都多。【句法分析】該句運(yùn)用了形容詞比擬級(jí)表示最高級(jí)。英語中用比擬級(jí)句型可以表最高級(jí)的含義 ,較為常見的有以下幾種形式：1、直接使用比擬級(jí)How beautiful she sings! I've never heard a better voice.  = She has the best voice I've ever heard. I have 

20、;never read a more interesting novel. = It is the most interesting novel I've ever read.   any other + n.(單)2、 比擬級(jí)+ than +  the other +n.(復(fù)) any of the 

21、;other + n.復(fù)She goes to school earlier than the other girls. He works harder than any other student. China is larger than any of the other countries in Asia.

22、60;3、比擬級(jí)+ than + anything/ anyone else George did more work than anyone else. Tom cared more for money than for anything else. 4、在比擬句型中使用"no", "nobody", "n

23、othing" + better than等詞。I like nothing better than swimming. Nobody can do the work better than he did.  No other building is as grand as the new hotel.

24、60;5、one of + the +adj.最高級(jí)+ n.(復(fù))“最的之一  eg. Paper-making is one of the greatest inventions of ancient China. 6、the + 序數(shù)詞+ adj.最高級(jí)+ n.(單) + in短語“第幾長、大、遠(yuǎn)eg. The Yellow Rive

25、r is the second longest river in China. 7、adj.最高級(jí)可用在選擇疑問句中 ,常用句型：Which/ Who A, B or C?eg. Which city is the biggest, Beijing, Shanghai or Chongqing? 8、當(dāng)adj.最高級(jí) 前有物主代詞、指示代詞、名詞所有格修飾時(shí)

26、 ,省掉最高級(jí)前的定冠詞the。eg. Linda is my sisters best friend. 【教材原句】 In the distance, they could see the misty cloud that rose from the great Niagara Falls, which is on the south side of the lake.遠(yuǎn)處 ,他們可以看到湖的南邊尼亞加拉大瀑布上方升騰著的霧靄?！揪浞ǚ治觥?、 in the distance 在遠(yuǎn)處；相當(dāng)于 far away , 強(qiáng)調(diào)距離

27、遠(yuǎn)。2、 that 引導(dǎo)的是一個(gè)定語從句 ,修飾the misty cloud ,表示“升起的misty cloud“。3、 rose是rise的過去式。表示上升。辨析rise、arise、raise、arouse 首先 , rise, arise 是不及物動(dòng)詞raise, arouse是及物動(dòng)詞 1. riserose, risenvi. 上升 ,升起, 升高；上漲；文：躺 坐或跪后起立 ,起身；起床說明主語自身移向較高位置 ,常用于日、月、云、霧、煙、蒸汽、河水、溫度、物價(jià)等 ,無被動(dòng)語態(tài)。 1) The sun rose at seven oclock. 太陽七點(diǎn)鐘升起。2) The m

28、oon has risen above the hills. 月亮已經(jīng)從山上升起。 3) The river has risen by several meters.河水上漲了好幾米。4) The river is rising after the rain. 雨后河水漲了。5) The temperature in the room is rising higher and higher. 房間里的溫度越升越高。6) Soon steam can be seen rising from the wet clothes. 很快就看見水蒸氣從濕衣服里冒出來。7) The price i

29、s rising. 物價(jià)正在上漲。2、 arise (arose, arisen) vi. .(問題 ,困難等)出現(xiàn)；發(fā)生 , 產(chǎn)生；主語一般為抽象名詞 ,如problem, trouble, quarrel, difficulty, misunderstanding, disagreement古：起身；起來；起立。無被動(dòng)語態(tài)。常用短語：arise from / out of sth.由引起；因產(chǎn)生。 如：1) Problems arose from the outset.一開始就產(chǎn)生了很多問題。2) How did the quarrel arise? 爭吵是怎么引起的？3) They ar

30、e talking about problems arising out of the lack of communication.他們正在談?wù)撚捎谌狈涣鞫a(chǎn)生的問題。3、 raise vt. 說明主語發(fā)出的動(dòng)作是要作用于其它事物的 ,往往有使物體到達(dá)其應(yīng)有的高度的含義?？捎糜诒粍?dòng)語態(tài)。如： 1) 招募：to raise an army 2) 養(yǎng)育、栽培：to raise a family 3) 提高raise salaries工資, raise the rent租金。4) 舉起raise ones hand 5) 提出問題 raise a question 1) Salaries have

31、 now been raised. 現(xiàn)在薪水已增加了。 2) The price was raised to 10. 價(jià)格漲到十英鎊。 3) Heavy rain raised the river stage. 暴雨使河水水位升高。4) The boss promised to raise her salary. 老板容許要給她加薪水。4、 arouse意為“激起 ,喚醒；使. 發(fā)奮 可用于被動(dòng)語態(tài)1) arouse ones interest / sympathy“喚起某人的興趣 / 同情心 2) arouse sb. 喚醒某人3) He fell i

32、nto a sound sleep, don't arouse him. 他睡熟了 ,別喚醒他。4) He was aroused from his sleep by the doorbell. 門鈴聲把他從睡眠中喚醒?？偨Y(jié)： arise 沒有“上升之意 ,多指“產(chǎn)生、發(fā)生和出現(xiàn) ,常用于抽象事物 rise 使用范圍廣 ,既用于具體事物的“上升、增長 ,又用于抽象事物的“上漲 raise 與以上兩詞不同的是 ,此詞是及物動(dòng)詞 ,表示把某具體事物抬起高處或提高某抽象事物【教材原句】 It is too bad the Chinese cant go as far as

33、 Ottawa, Canadas capital.很可惜你們不能一直走到加拿大的首都渥太華?！揪浞ǚ治觥?、該句結(jié)構(gòu)是It+ 系動(dòng)詞+形容詞+that從句。如：It is necessary/ clear/ likely/ important that 有必要/很清楚/很可能/重要的是類似的形容詞還有：strange; natural; obvious; true; good; wonderful; possible; unlikely; quite; unusual; certain; evident; worth-while; surprising; interesting; astoni

34、shing, etc. Eg: It is no surprise that Bob should have won the game. It is a pity that you missed the film. 2、go as far as 一直走到 eg. This is as far as we go. as/so far as sb. knows 就某人所知 as far as sb. can see/tell/ remember 就某人看來/所說/所記得as/so far as sb / sth is concerned 就某人/事物而言far from sth 毫不；一點(diǎn)也不；

35、遠(yuǎn)非So far, so good. (諺) 到目前為止 ,一切都很順利?？键c(diǎn)/易錯(cuò)點(diǎn)3 語法點(diǎn)學(xué)習(xí) 表語從句和同位語從句表語從句1 定義：用作表語的從句叫做表語從句。2 引導(dǎo)表語從句的關(guān)聯(lián)詞的種類：(1) 附屬連詞that。在從句中不做成分。如：The trouble is that I have lost his address.  麻煩是我把他的地址丟了。 The reason was that he was late for school.(2) 附屬連詞whether, as, as if。如：1. He looked just as he had looked

36、ten years before.  他看起來還與十年前一樣。2. The question is whether they will be able to help us. 問題是他們是否能幫我們。注：附屬連詞if一般不用來引導(dǎo)表語從句 ,但as if卻可引導(dǎo)表語從句 ,如：All this was over twenty years ago, but its as if it was only yesterday.這都是20多年前的事了 ,但宛如昨天一樣。The key is whether we can solve the problem. 看起來好似要下雨。It l

37、ooked as if it was going to rain.注：能跟表語從句的謂語動(dòng)詞一般為系動(dòng)詞be, seem, look ,sound等。如：He looked just as he had looked ten years before. 他看起來還與十年前一樣。 造句：聽起來好似有人在敲門。It sounds as if someone is knocking at the door. (3) 連接代詞who, whom, whose, what, which, whoever, whatever, whichever 在表語從句中做主語、賓語等。如：The problem i

38、s who we can get to replace her. 問題是我們能找到誰去替換她呢。That was what she did this morning on reaching the attic. 那就是她今晨上了閣樓干的。 造句： 問題是我們能找到誰去替換她呢。 The problem is who we can get to replace her.我想問的是誰離開了。 My question is who left. (4) 連接副詞 where, when, how, why。What I wonder is when he left. 我想知道他是何時(shí)離開的。This

39、is where they once lived. 這就是他們?cè)?jīng)住過的地方。造句：這就是他為何沒到這兒來的原因。 That is why he didn't come here. 造句：問題是他是如何做此事的。 The question is how he did it.  (5) 連詞because可引導(dǎo)表語從句。如：I think it is because you are doing too much. 我想這是因?yàn)槟阕龅锰?。造句：這是僅僅因?yàn)樗徽J(rèn)識(shí)她。 It's just because he doesn't know her. Tha

40、t's because he didn't understand me. 那是因?yàn)樗麤]有理解我。(That's because.強(qiáng)調(diào)原因) That's why he got angry with me. 那正是他對(duì)我生氣的原因。 (That's why.強(qiáng)調(diào)結(jié)果) (6) 在一些表示“建議、勸說、命令的名詞后面的表語從句中 ,謂語動(dòng)詞用虛擬語氣。should+動(dòng)詞原形表示 ,should可省略。如：My suggestion is that we (should) start early tomorrow. 我的建議是我們明天一早就出發(fā)。同位語從句同位

41、語從句說明其前面的名詞的具體內(nèi)容。1、 同位語從句通常由that引導(dǎo) ,可用于同位語從句的名詞有advice、demand、doubt、fact、hope、idea、information、message、news、order、problem、promise、question、request、suggestion、truth、wish、word、rumor等抽象名詞。例如：The news that we won the game is exciting. 我們贏得這場比賽的消息令人沖動(dòng)。I have no idea when he will come back home. 我不知道他什么時(shí)候

42、回來。The thought came to him that Mary had probably fallen ill. 他想到可能瑪麗生病了。2、如同位語從句意義不完整 ,需增加"是否"的含義 ,應(yīng)用whether引導(dǎo)同位語從句。例：We'll discuss the problem whether the sports meeting will be held on time.析：the sports meeting will be held on time意義不完整 ,應(yīng)加"是否"的含義才能表達(dá)the problem的全部內(nèi)容 ,因此應(yīng)用

43、whether引導(dǎo)同位語從句。3、如同位語從句意義不完整 ,需增加"什么時(shí)候"、"什么地點(diǎn)"、"什么方式"等含義 ,應(yīng)用when, where, how等詞引導(dǎo)同位語從句。Eg: 1：I have no idea when he will be back. 2：I have no impression how he went home, perhaps by bike. 4、當(dāng)主句的謂語較短 ,而同位語從句較長時(shí) ,同位語從句常后置。eg：The thought came to him that maybe the enemy had

44、 fled the city. 同位語從句與定語從句的區(qū)別：1、 定語從句中的that既代替先行詞 ,同時(shí)以在從句中作某個(gè)成分主語或賓語 ,而同位語從句中的 that是連詞 ,只起連接主句與從句的作用 ,不充當(dāng)句中任何成分。2、 定語從句是形容詞性的 ,其功能是修飾先行詞 ,對(duì)先行詞加以限定 ,描述定的性質(zhì)或特征；同位 語從句是名詞性的 ,其功能是對(duì)名詞進(jìn)行補(bǔ)充說明。例如：1) The news that he told me is that Tom would go abroad next year.他告訴我的消息是湯姆明年將出國。2)The news that Tom would go a

45、broad is told by him.湯姆將出國的消息是他講的。I had no idea that you were herethat引導(dǎo)同位語從句 ,不能省略Have you got the ideathatthis book gives you of life in ancient Greece？that引導(dǎo)定語從句 ,作賓語 ,可以省略四、例題精析【例題1】 【題干】To some people ,happiness _family and friends. 對(duì)于有些人來說 ,幸福就是被朋友和家人包圍著。 【答案】is being surrounded by 【解析】此題考查詞匯s

46、urround的使用?！纠}2】 【題干】The National Stadium which looks very magnificent_258,000 square metres in area.Ais measuring Bis measuredCmeasured Dmeasures【答案】：D【解析】：句意：看起來非常輝煌的國家體育館面積為258 000平方米。measure在此處為不及物動(dòng)詞 ,指尺寸、長短、數(shù)量等。用作此含義時(shí) ,不能用于進(jìn)行時(shí) ,也不能用于被動(dòng)語態(tài)?！纠}3】 【題干】These soldiers defend the _ area of China's

47、 North all year round.Aborder BharborCglobe Dscenery【答案】：A【解析】：句意：這些士兵整年都在保衛(wèi)中國北疆國門。border國界 ,國門；harbor港口；globe地球；scenery景色。 五、課堂運(yùn)用【根底】1、More consumers are waiting for the further drop of housing prices with money in their hands rather than _ houses ,according to a report.Ato buy BbuyingCbuy Dbought【答案】B【解析】rather than連接平行結(jié)構(gòu) ,由句子中的waiting for.可知rather than后應(yīng)用buying。 2、The girl who is studying at the art college has a _ for music and dance.Agift BpresentCpower Dstrength 【答案】A 【解析】詞組have a gift for的含義是“在有天賦。present作“禮物講與gift是同義詞 ,但它沒有“天賦的含義。3、It was so noisy o