必修三unit 2 _教案

1、.必修三 unit 2 Healthy eating適用學科英語適用年級高一適用區(qū)域全國課時時長分鐘2課時知識點1、本單元重點詞匯。2、常用構(gòu)造Neithernor 既不也不等。3、情態(tài)動詞+ have done。教學目的1、讓學生掌握本單元所出現(xiàn)的詞匯的用法。2、通過本單元的學習，要求學生純熟掌握情態(tài)動詞+ have done的語用功能。教學重點通過上下文來教詞匯、語法，并引導學生分析長句、難句和復雜句。教學難點總結(jié)語言材料中有關(guān)情態(tài)動詞+ have done用法和功能并加以應用。教學過程一、 課堂導入學習以下諺語：You are what you e

2、at.  人如其食。First wealth is health. -Emerson 安康是人生的第一財富。An apple a day keeps the doctor away.   一天一個蘋果，醫(yī)生不來找。二、復習預習 老師引導學生復習上節(jié)課所學知識點， 以提問、回憶的形式進展，針對上節(jié)課的作業(yè)進展講評、訂正、答疑，并通過對情態(tài)動詞詳細用法的分析和擴展導入本節(jié)課所要學習的課本知識的學習。 三、知識講解考點/易錯點1 重點單詞與短語學習balance

3、 n. 天平，平衡；余額，余數(shù) v. 平衡；權(quán)衡 balanced adj. 平衡的回歸課本P10What will happen to you if you dont eat a balanced diet?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. 我要核對一下我在銀行的余額看我的帳戶上有多少錢。3. Try to bal

4、ance your diet by eating more fruit and less protein. 多吃些水果, 少攝入些蛋白質(zhì), 使飲食平衡合理。歸納拓展 a balanced diet 平衡的飲食 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P10He thought of his mutton, beef and bacon cooked in the hottest, finest oil.1想起；

5、記起   Sorry, I didnt think of your name just now.  2考慮   We should think of the matter carefully.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 對評價很高 think highly

6、 / well of 高度評價  think out 想出  think badly / little of認為不好  think over 仔細考慮 tired of 厭倦回歸課本P10Tired of all that fat? 厭倦肥膩了吧？be tired of 對厭倦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.我已厭煩了問這個問題,所以這是最后一次.歸納拓展be/get tired from/wi

7、th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P10Want 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 weight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 on

8、e 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 with sb/ sth 失去和某人/事物的聯(lián)絡(luò)lose interest in sth/ sb 對某事物/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 t

9、he cat. 好奇害死貓?；貧w課本P10Curiosity 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. 對某事好奇 be curious to do 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

10、 curious noise last night. 昨晚我聽見一個奇怪的響聲。get away with 被放過；做壞事不受懲罰 tell lies回歸課本P10He could not have Yong Hui getting away with telling people lies.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

11、away with such a punishment. 既然你犯了錯誤，就逃脫不了這樣的懲罰。歸納拓展get along with 進展，相處 get in 進來，收獲，插話get up 起床 get on 上車 get off 下車，脫掉 get away from 逃離 get rid of 擺脫，去掉get over 抑制困難，從疾病、絕望等中恢復過來get through 做完，通過，接通 2、tell lies 扯謊，說謊. 還可以說tell a lieeg. I hate telling lies.我討厭扯謊。 earn ones living謀生回歸課本P14Perhaps h

12、e 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 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

13、 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 負債回歸課本P14He did 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

14、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；負責out of debt不欠債 run up huge debts高筑債臺 pay off one s debts還清債務(wù)in danger 在危險中in trouble陷入困境，倒霉in order 井井有條in surprise 吃驚in public 當眾，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 hear

15、t.You saved my life, and Im forever in debt to you. 得知他們負債累累，他們哭得傷心欲絕。glare vi. 怒目而視; n.眩光，閃光，強烈的陽光回歸課本P14She didnt look happy but glared at him as she moved round the customers. 她繞過顧客走進來，雙眼直瞪著他，看上去很不快樂。 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

16、貫注eg. They stopped arguing and glared at each other. 他們停頓了爭論，互相怒目而視.spyv. 監(jiān)視回歸課本P14 you only came to spy on me and my menu. 你知識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，理解清楚

17、sth spy out the land 事先摸清情況，窺探虛實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 menu 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. 對加以限制 eg. Life is limited, but there is no limit to serving th

18、e people. There is no limit to the amount of pain we can bear. The number of competitors is limited.He is a man of limited ability.As they had limited experience, they often had limited ideas.Im willing to help within limits. 我愿意適當幫幫助。We set a limit to the expense of the trip. 我們對這次旅行的費用加以限制了。 benef

19、it n. 好處，好處 v. 使受益，對有利回歸課本P14 I stopped worrying and started advertising the benefits of my food.歸納拓展beneficial adj.be of benefit to 對有好處 = 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. 這本字典將對我有很大的好處。 Reading more books will benefit you.

20、多讀書對你們很有好處。You will benefit from reading more books. Fresh air is beneficial to our health. 新穎空氣有利于身體安康a second 又一，再一回歸課本P2Wang 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. 你是第二個告訴我這個消息的人。2 _, but he s

21、aid he would go on trying until he succeeded.他又失敗了一次，但他說他會繼續(xù)努力直到成功。 before long 不久，一會兒 回歸課本P7before long Wang Peng became slimmer and Yong Hui put on more weight. before long : soon不久以后，很快，多于將來時態(tài)或過去時態(tài)連用 I shall visit you again before long. It became clear that the program was a failure before long.

22、歸納拓展 long before: 很久以前，多余完成時態(tài)連用He had taken a doctor's degree long before. 他很久以前就獲得了博士學位。注：long before 有時表示 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。考點/易錯點2 重點句子分析【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，感到非常沮喪。【句法分析】feeling very frus

23、trated 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 be better if you were a bit thinner? 不過, 難道你不認為瘦一點更好嗎?【句法分析】think 后的賓語從句是虛擬語氣, 表示與如今事實相反的假設(shè)。 1 與如今事實相反, 條件從句中的謂語動詞用一般過去式be的過去式用 were, 而主句中的謂語動詞用“would should, could, might +動詞原形。If we had time, we would g

24、o with you If I were you, I would study hard.2 與過去事實相反, 條件從句中的謂語動詞用過去完成時, 主句中的謂語動詞用“ would should, could, might + have過去分詞 If you had come earlier, you would have met him 3 與將來是事實相反, 條件從句和主句所用的謂語動詞與表示與如今事實相反的假設(shè)的謂語動詞一樣, 或條件從句中用“ were to should +動詞原形 If you dropped the glass, it would break If it shou

25、ld rain, the crops would be saved_9. Perhaps we ought to combine our ideas and provide a balanced menu with food full of energy and bine 1vt.使結(jié)合或混合；使結(jié)合The new teaching method combines education with pleasure.這種新的教學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 s

26、hops combined to make a large one.But dont you think it would be better if you were a bit thinner? 不過, 難道你不認為瘦一點更好嗎? 【教材原句】Neither your restaurant nor mine offers a balanced diet.【句法分析】Neithernor 既不也不1引導并列主語時，謂語的數(shù)于最靠近謂語的主語保持一致,遵循就近原那么。 Eg. Neither the students nor the teacher has suffered from the f

27、ire with the timely help of the firefighters.2引導兩個分句時，這兩個分句中的主謂均要倒裝。 Eg. Neither do I know her address, nor does he. Neither could the patient eat, nor could he drink.【教材原句】“Nothing could be better,he thought. 他想：“再沒有比這些更好吃的了。 【句法分析】這個句子是否認詞+ 比較級表示最高級的含義。 要掌握該

28、構(gòu)造的用法，須注意以下幾點：   1該構(gòu)造多為“can't couldn't 比較級的形式。Eg：I can't agree with you more我再同意你不過了?；颍何彝耆饽愕囊庖?。    The weather couldn't be worse天氣再糟糕不過了。    He couldn't have&

29、#160;done better他做得再好不過了。    2用于該構(gòu)造中的否認詞除了not之外，還有no， never，nothing等。 Eg：This could give her no greater pleasure這使她再快樂不過了。    She's never better她如今最好不過了?；颍核纫酝魏螘r候都好。   There's 

30、nothing cheaper這東西再廉價不過了。    3當該構(gòu)造中的比較級為less時，該構(gòu)造意為“一點也不。 試比較：1He couldn't care more他非常介意。或：他最關(guān)心不過了。   He couldn't care less他毫不介意?；颍核钅魂P(guān)心了。    2He had never felt more like 

31、;talking to anyone他從未如此想和人談話。    He had never felt less like talking to anyone他從未如此不想和人談話。 類似的還有too, enough。 You can never be too careful when you cross the street.&

32、#160; 過馬路越小心越好/ 過馬路再怎么小心也缺乏為過 。 【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 引導結(jié)果狀語從句 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： s

33、o + 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)名詞復數(shù)+ that 從句 such + a lot of / lots of + 名詞+ that 從句考點/易錯點3 語法點學習 情態(tài)動詞 + have done1. 情態(tài)動詞must +have done只用于肯定句中，表示對過去發(fā)生的事情或狀態(tài)進展肯定的推測，意為“過去一定做

34、過某事。It must have rained last night, for the road is wet. 昨天晚上一定是下雨了，因為路還濕著。 You must have seen the film the Gold Rush. 你肯定看過電影?淘金熱?。2. 情態(tài)動詞cancould可用于否認句中，即can t have done couldn t have done，表示對過去發(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 attende

35、d 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)動詞只有cancould常用于疑問句中I can t find Tom anywhere in the office 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)動詞maymight +have done表示對已發(fā)生的動作或存在的狀態(tài)進展不肯定的推測，might語氣稍弱一

36、點兒，只能用于肯定句和否認句中，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. 你可能在報上已經(jīng)看過這個消息了。 四、例題精析【例題1】 【題干】According to the law, anyone who destroyed the forest will not_ 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

37、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 / 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. looke

38、d D. having looked 【答案】A 【解析】looking out是分詞短語作伴隨狀語。 五、課堂運用【根底】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【解析】get through, 通過，到達，做完，接通 。2、He _to us that those eggs which are _ on the table had been _ by snakes.A. lied; laying; lied B. li

39、ed; 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.Ashan't Bshouldn'tCneedn't Dmustn't【答案】B【解析】考察情態(tài)動詞。should