必修三unit 2 教案

1、必修三 unit 2 Healthy eating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、常用結(jié)構(gòu)Neithernor 既不也不等。3、情態(tài)動(dòng)詞+ have done。教學(xué)目標(biāo)1、讓學(xué)生掌握本單元所出現(xiàn)的詞匯的用法。2、通過本單元的學(xué)習(xí)，要求學(xué)生熟練掌握情態(tài)動(dòng)詞+ have done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)情態(tài)動(dòng)詞+ have done用法和功能并加以應(yīng)用。教學(xué)過程一、 課堂導(dǎo)入學(xué)習(xí)下列諺語：Youarewhatyoueat. 人如其食。Firstwealthish

2、ealth.-Emerson 健康是人生的第一財(cái)富。Anappleadaykeepsthedoctoraway. 一天一個(gè)蘋果，醫(yī)生不來找。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、回顧的形式進(jìn)行），針對(duì)上節(jié)課的作業(yè)進(jìn)行講評(píng)、訂正、答疑，并通過對(duì)情態(tài)動(dòng)詞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)balance n. 天平，平衡；余額，余數(shù) v. 平衡；權(quán)衡 balanced adj. 均衡的(回歸課本P10)What will happen to you if you dont eat a balanced die

3、t?Eg: 1). Try to achieve a better balance between work and play. 爭取把工作和娛樂更好地結(jié)合起來。2). I must check my bank balance (= find out how much money I have in my account). 我要核對(duì)一下我在銀行的余額（看我的帳戶上有多少錢）。3). Try to balance your diet by eating more fruit and less protein. 多吃些水果, 少攝入些蛋白質(zhì), 使飲食均衡合理。歸納拓展 a balanced di

4、et 均衡的飲食 keep the balance of nature保持生態(tài)平衡keep ones balance保持平衡 lose ones balance (= be out of balance) 失去平衡think of 想，考慮(回歸課本P10)He thought of his mutton, beef and bacon cooked in the hottest, finest oil.（1）想起；記起 Sorry, I didnt think of your name just now. （2）考慮 We should think of the matter careful

5、ly.（3）為著想 Chen is always thinking of the poor people in the poor areas.（4）想；打算 I am thinking of giving up smoking. 歸納拓展think about想；考慮 think much of 對(duì)評(píng)價(jià)很高 think highly / well of 高度評(píng)價(jià) think out 想出 think badly / little of認(rèn)為不好 think over 仔細(xì)考慮tired of 厭倦(回歸課本P10)Tired of all that fat? 厭倦肥膩了吧？be tired of

6、 對(duì)厭倦eg. Im tired of your conversation.你的講話我聽膩了.I grow tired of asking this, so itll be the last time.我已厭煩了問這個(gè)問題,所以這是最后一次.歸納拓展be/get tired from/with因感到疲勞、勞累tire sb. out使某人疲不堪，筋疲力盡lose weight 體重減輕；減肥(回歸課本P10)Want to lose weight?Eg: She is trying to lose weight. 她在努力減肥。歸納拓展 weight短語及l(fā)ose短語：put on weigh

7、t（指人）增加體重，長胖be/take a weight/ load off sb s mind使自己/某人如釋重負(fù)lost heart 泄氣；灰心lose one s heart (to sb/sth): fall in love 愛上；鍾情於lose one s life 喪生；遇害lose one s balance 失去平衡lose one s breath氣喘噓噓；上氣不接下氣lose one s head 昏了頭，張皇失措，沖動(dòng)lose one s temper發(fā)脾氣lose one s job 失業(yè)lose one s way: become lost 迷路lose touch

8、(with sb/ sth) 失去和某人/事物的聯(lián)系lose interest in sth/ sb 對(duì)某事物/人失去興趣lose sight of sb/ sth 看不見某人/物；忽略或未考慮某事物lose face 丟臉curiosity n. 好奇心 Curiosity killed the cat. 好奇害死貓。(回歸課本P10)Curiosity drove Wang Peng iside.歸納拓展out of curiosity 出于好奇with curiosity = curiously好奇地 be curious about sth. 對(duì)某事好奇 be curious to d

9、o sth. 好奇地做某事Curious adj.1) 好奇的，渴望知道的；愛探究的(+as to/about)+to-v+wh- The boy was curious about everything he saw. 那男孩對(duì)所見的一切都感到好奇 2) 奇怪的；稀奇古怪的，難以理解的I heard a curious noise last night. 昨晚我聽見一個(gè)奇怪的響聲。get away with 被放過；（做壞事）不受懲罰 tell lies(回歸課本P10)He could not have Yong Hui getting away with telling people l

10、ies.他可不能讓詠慧哄騙人們而不受懲罰。1. get away with eg. If you cheat in the exam, youll never get away with it. 考試作弊必予追究。Now that you have made mistakes, you shouldnt get away with such a punishment. 既然你犯了錯(cuò)誤，就逃脫不了這樣的懲罰。歸納拓展get along with 進(jìn)展，相處 get in 進(jìn)來，收獲，插話get up 起床 get on 上車 get off 下車，脫掉 get away from 逃離 get

11、rid of 擺脫，去掉get over 克服（困難），從（疾病、失望等）中恢復(fù)過來get through 做完，通過，接通電話2、tell lies 撒謊，說謊. 還可以說tell a lieeg. I hate telling lies.我討厭撒謊。 earn ones living謀生(回歸課本P14)Perhaps he would be able to earn his living after all and not have to close his restaurant. 1) earn means to get (money) by working 賺，掙（錢）；2) to

12、get sth because of ones qualities or actions 博得，贏得eg: I earn 2019 yuan a month by selling newspapers. She earned her place in the team by training hard.歸納拓展 earn ones / a living =make ones /a living by (靠) 謀生 eg: She used to earn her living by selling drinks. 她曾經(jīng)靠賣飲料來謀生。 (be) in debt 負(fù)債(回歸課本P14)He d

13、id not look forward to being in debt because his restaurant was no longer popular. debt:【C】sum of money owed to sb. that has not yet been paid 債務(wù); 欠款 歸納拓展 debt短語和 “in + n.” 表示“在（情況、狀況、狀態(tài)）中”：in debt to sb = in sbs debt 欠sb的債/人情get/run into debt 欠債；負(fù)責(zé)out of debt不欠債 run up huge debts高筑債臺(tái) pay off one s

14、debts還清債務(wù)in danger 在危險(xiǎn)中in trouble陷入困境，倒霉in order 井井有條in surprise 吃驚in public 當(dāng)眾，公開in ruins 呈廢墟狀態(tài)in sight 看見in silence沉默著eg. Knowing they are deep in debt, they cried out their heart.You saved my life, and Im forever in debt to you. 得知他們負(fù)債累累，他們哭得傷心欲絕。glare vi. 怒目而視; n.眩光，閃光，強(qiáng)烈的陽光(回歸課本P14)She didnt lo

15、ok happy but glared at him as she moved round the customers. 她繞過顧客走進(jìn)來，雙眼直瞪著他，看上去很不高興。 歸納拓展不同的 “看”glare at 表示“怒目而視”glance at 表示“粗略地看一下”look at “看一看”為一般用語stare at 盯著看，（指由于驚奇，害怕，生氣或沉思而睜大眼睛全神貫注）eg. They stopped arguing and glared at each other. 他們停止了爭論，互相怒目而視.spyv. 監(jiān)視(回歸課本P14) you only came to spy on me

16、 and my menu. 你知識(shí)過來打探我和我的菜譜的。 spy on/upon : to watch secretly 暗中監(jiān)視，偵查 eg: Have you been spying on me ? He said that someone might be spying on the station. 歸納拓展spy sth out = ( find out ) 查明，了解清楚sth spy out the land (事先)摸清情況，窺探虛實(shí)limit n. 限度，限制，限定 v. 限制，限定（limit 常與介詞to 連用）(回歸課本P14) but I found your me

17、nu so limited that歸納拓展limit to 把限制在內(nèi)limited a. 有限的within limits 適度地，有一定限制地without limit 無限的over /beyond the limit 超過限度set a limit to sth. 對(duì)加以限制 eg. Life is limited, but there is no limit to serving the people. There is no limit to the amount of pain we can bear. The number of competitors is limited.

18、He is a man of limited ability.As they had limited experience, they often had limited ideas.Im willing to help within limits. 我愿意適當(dāng)幫幫忙。We set a limit to the expense of the trip. 我們對(duì)這次旅行的費(fèi)用加以限制了。 benefit n. 益處，好處 v. 使受益，對(duì)有利(回歸課本P14) I stopped worrying and started advertising the benefits of my food.歸

19、納拓展beneficial adj.be of benefit to 對(duì)有益處 = be beneficial to for ones benefit 為了某人的利益benefit from從中受益 eg: The dictionary will be of great benefit to me. 這本字典將對(duì)我有很大的好處。 Reading more books will benefit you.多讀書對(duì)你們很有好處。You will benefit from reading more books. Fresh air is beneficial to our health. 新鮮空氣有利

20、于身體健康a second 又一，再一(回歸課本P2)Wang Pengwei was just enjoying a second plate of dumplings 歸納拓展 序數(shù)詞與the連用表示“第幾”，與a / an連用表示“又一，再一” = another。1) You are the second to tell me the news. 你是第二個(gè)告訴我這個(gè)消息的人。2) _, but he said he would go on trying until he succeeded.他又失敗了一次，但他說他會(huì)繼續(xù)努力直到成功。 before long 不久，一會(huì)兒 (回歸課本

21、P7)before long Wang Peng became slimmer and Yong Hui put on more weight. before long : soon不久以后，很快，多于將來時(shí)態(tài)或過去時(shí)態(tài)連用 I shall visit you again before long. It became clear that the program was a failure before long. 歸納拓展 long before: 很久以前，多余完成時(shí)態(tài)連用He had taken a doctors degree long before. 他很久以前就獲得了博士學(xué)位。注：

22、long before 有時(shí)表示 早在.之前He had come to America long before the war. 他早在戰(zhàn)爭之前就來到美國?？键c(diǎn)/易錯(cuò)點(diǎn)2 重點(diǎn)句子分析【教材原句】Wang Peng sat in his empty restaurant feeling very frustrated.王鵬坐在他那空蕩蕩的餐館里，感到十分沮喪。【句法分析】feeling very frustrated 是分詞短語作伴隨狀語。eg. He sat at the table reading China Daily.【教材原句】But dont you think it would

23、 be better if you were a bit thinner? 不過, 難道你不認(rèn)為瘦一點(diǎn)更好嗎?【句法分析】think 后的賓語從句是虛擬語氣, 表示與現(xiàn)在事實(shí)相反的假設(shè)。 1) 與現(xiàn)在事實(shí)相反, 條件從句中的謂語動(dòng)詞用一般過去式(be的過去式用 were), 而主句中的謂語動(dòng)詞用“would (should, could, might) +動(dòng)詞原形”。If we had time, we would go with you If I were you, I would study hard.2) 與過去事實(shí)相反, 條件從句中的謂語動(dòng)詞用過去完成時(shí), 主句中的謂語動(dòng)詞用“ wou

24、ld (should, could, might) + have過去分詞 ”If you had come earlier, you would have met him 3) 與將來是事實(shí)相反, 條件從句和主句所用的謂語動(dòng)詞與表示與現(xiàn)在事實(shí)相反的假設(shè)的謂語動(dòng)詞相同, 或條件從句中用“ were to (should) +動(dòng)詞原形 ”If you dropped the glass, it would break If it should rain, the crops would be saved_9. Perhaps we ought to combine our ideas and pr

25、ovide a balanced menu with food full of energy and bine 1)vt.使結(jié)合或混合；使聯(lián)合The new teaching method combines education with pleasure.這種新的教學(xué)方法寓教育于娛樂之中。combine A and B 或 combine A with B 把A和B結(jié)合成一體2) vi.結(jié)合The two small shops combined to make a large one.But dont you think it would be better if you

26、were a bit thinner? 不過, 難道你不認(rèn)為瘦一點(diǎn)更好嗎? 【教材原句】Neither your restaurant nor mine offers a balanced diet.【句法分析】Neithernor 既不也不1）引導(dǎo)并列主語時(shí)，謂語的數(shù)于最靠近謂語的主語保持一致,遵循就近原則。 Eg. Neither the students nor the teacher has suffered from the fire with the timely help of the firefighters.2)引導(dǎo)兩個(gè)分句時(shí)，這兩個(gè)分句中的主謂均要倒裝。 Eg. Neith

27、er do I know her address, nor does he. Neither could the patient eat, nor could he drink.【教材原句】“Nothingcouldbebetter,”hethought.他想：“再?zèng)]有比這些更好吃的了。”【句法分析】這個(gè)句子是否定詞+比較級(jí)表示最高級(jí)的含義。要掌握該結(jié)構(gòu)的用法，須注意以下幾點(diǎn)：1該結(jié)構(gòu)多為“cantcouldnt比較級(jí)”的形式。Eg：Icantagreewithyoumore我再同意你不過了。（或：我完全同意你的意見。）Theweathercouldntbeworse天氣再糟糕不過了。Heco

28、uldnthavedonebetter他做得再好不過了。2用于該結(jié)構(gòu)中的否定詞除了not之外，還有no，never，nothing等。Eg：Thiscouldgivehernogreaterpleasure這使她再高興不過了。Shesneverbetter她現(xiàn)在最好不過了。（或：她比以往任何時(shí)候都好。）Theresnothingcheaper這東西再便宜不過了。3當(dāng)該結(jié)構(gòu)中的比較級(jí)為less時(shí)，該結(jié)構(gòu)意為“一點(diǎn)也不”。試比較：1）Hecouldntcaremore他非常介意。（或：他最關(guān)心不過了。）Hecouldnt careless他毫不介意。（或：他最漠不關(guān)心了。）2）Hehadnever

29、feltmoreliketalkingtoanyone他從未如此想和人談話。Hehadneverfeltlessliketalkingtoanyone他從未如此不想和人談話。類似的還有too,enough。Youcanneverbetoocarefulwhenyoucrossthestreet.過馬路越小心越好/過馬路再怎么小心也不足為過。【教材原句】I found your menu so limited that I stopped worrying and started advertising the benefits of my food. 【句法分析】sothat 引導(dǎo)結(jié)果狀語從句

30、 eg. He ran so slowly that no one fell behind him.The girl talked so much in class that the teacher got angry.歸納拓展搭配： so + 形容詞/副詞+ that 從句 so + 形容詞+ a/an + 可數(shù)名詞單數(shù) + that 從句 so + many/ much /few / little(少) + 名詞 + that 從句 such + a/an + 形容詞 + 可數(shù)名詞單數(shù) + that 從句 such + 形容詞 + 不可數(shù)名詞/可數(shù)名詞復(fù)數(shù)+ that 從句 such +

31、a lot of / lots of + 名詞+ that 從句考點(diǎn)/易錯(cuò)點(diǎn)3 語法點(diǎn)學(xué)習(xí) 情態(tài)動(dòng)詞 + have done1. 情態(tài)動(dòng)詞must +have done只用于肯定句中，表示對(duì)過去發(fā)生的事情或狀態(tài)進(jìn)行肯定的推測，意為“過去一定做過某事”。It must have rained last night, for the road is wet. 昨天晚上一定是下雨了，因?yàn)槁愤€濕著。 You must have seen the film the Gold Rush. 你肯定看過電影淘金熱。2. 情態(tài)動(dòng)詞cancould可用于否定句中，即can t have done couldn t

32、 have done，表示對(duì)過去發(fā)生的事情或狀態(tài)的肯定的推測，意為“過去不可能做過，肯定沒做過”。My sister met him at the theatre last night, so he couldn t have attended your lecture. 我姐姐昨天晚上在電影院遇見了他，所以他肯定沒參加你的演講3. 此外，cancould have done還可用于疑問句中表示對(duì)過去發(fā)生的事情或狀態(tài)的不太有把握的推測，常表示“過去可能做過嗎?”(注意：表推測的情態(tài)動(dòng)詞只有cancould常用于疑問句中)I can t find Tom anywhere in the offi

33、ce building. Where can he have gone? 我在辦公樓任何地方都找不到湯姆。他有可能去了哪里了呢？4. 情態(tài)動(dòng)詞maymight +have done表示對(duì)已發(fā)生的動(dòng)作或存在的狀態(tài)進(jìn)行不肯定的推測，might語氣稍弱一點(diǎn)兒，只能用于肯定句和否定句中，表示“過去可能做過某事或過去可能沒做過某事”。You might have read about it in the papers. 你可能在報(bào)上已經(jīng)看過這個(gè)消息了。 四、例題精析【例題1】 【題干】According to the law, anyone who destroyed the forest will n

34、ot_ what he has done.A. get away from B. get along with C. come up with D. get away with 【答案】A 【解析】句意：根據(jù)法律規(guī)定，任何破壞森林的人都逃脫不了他所犯的罪行。get away from （做壞事）不受懲罰?！纠}2】 【題干】He said that he would pay _ second visit to Australia _ next month. A. the, / B. the , the C. a, the D. a, / 【答案】D 【解析】序數(shù)詞與the連用表示“第幾”，與a

35、 / an連用表示“又一，再一” = another?！纠}3】 【題干】“We cant go out in this weather.” said Bob,_ out of the window.A. looking B. to look C. looked D. having looked 【答案】A 【解析】looking out是分詞短語作伴隨狀語。 五、課堂運(yùn)用【基礎(chǔ)】1、Youll not _ your homework today if you dont hurry up.A. get off B. get back C. get through D. get in【答案】C【

36、解析】get through, 通過，到達(dá)，做完，接通電話。2、He _to us that those eggs which are _ on the table had been _ by snakes.A. lied; laying; lied B. lied; lying; lainC. laid; laid; laid D. lied; lying; laid【答案】B【解析】lie躺；說謊；位于；展現(xiàn)。lay躺下；產(chǎn)卵；擱放；放置；鋪放；涂，敷。3、 Do you think the rain will affect the football match?The players are used to such rainy weather, so it _ make any difference to them.Ashant BshouldntCneednt Dmustnt【答案】B【解析】考查情態(tài)動(dòng)詞。shouldnt 表示“按理說不會(huì)/不該”。【鞏固】1、 The child ought to be punished. How should you