高中英语必修三第二单元教案.doc

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1、(3,2)重点词汇1. n. 天平，平衡；余额，余数 v. 平衡；权衡 balanced adj. 均衡的典例 1).Many people have come to realize that they should go on a balanced diet.2). I must check my bank balance.3). Try to balance your diet by eating more fruit and less protein. 重点用法 be out of balance 失去平衡练习 用balance短语填空或翻译。1). He _ _ _ and hurt

2、himself when he went upstairs. 2). It is difficult for you to _ _ _ on an icy pavement.2.完成句子Its very important to _(保持大自然平衡)However，at times it is disturbed，resulting in a number of possibly unforeseen effects.2. n. 好奇心；求知欲 curious adj. 好奇的 curiously adv. 好奇地典例 1). Children are naturally curious ab

3、out everything around them.2). I opened the packet just to satisfy my curiosity. There are some people who show great curiosity about other peoples affairs.Just out of curiosity，how much did you pay for your car?It is curious that he should not have failed the race.重点用法 out of curiosity 出于好奇with cur

4、iosity = curiously好奇地 be curious about sth. 对某事好奇 be curious to do sth. 好奇地做某事练习 用curiousity的短语或其适当形式填空。1). Margaret looked at him _ _. 2). She decided to try a cigarette _ _ _.3). All the employees in this firm _ _ _ the personal life of the general manager.4). _ drove Mary to open her husband s le

5、tter though she knew it was wrong.(天津卷)People have always been_about exactly how life on earth began.AcuriousBexcited CanxiousDcareful3. vt. 限制；限定 n. 界限；限度 limited adj. 有限的 limitless adj. 无限制的典例1). The speed limit on this road is 70 mph. 2).This technique is useful but it has its limitations. 3). In

6、 my opinion，you had better set a limit to the expense of your trip. I believe teaching should not be limited to the classroom.The amount of money you have to spend will limit your choice.短语归纳 limit短语：limit sb./sth. to. 限制某人/某事到某种程度put a limit on. 对限制there is a limit to对是有限的without limit 无限地，无限制地练习 用

7、limit的短语或其适当形式填空。1). Ones energy is _.2). _ _ _ _ (没有止境) what you can do if you try. 3). We must _ our weekly expenditure _ ten pounds.4). Only a _ number of places are available.4.In my opinion，keeping dogs should not be banned，but_to certain areas.AlimitedBlimiting Cto limitDto be limited4. vt. 有益

8、于 vi. 得益于（常及from, by连用） n. 利益，好处；津贴1). The rain benefits the plants. = The plants benefit from the rain. 2).Plenty of exercise every day is of great benefit to our health.We should spend the money on something that will benefit everyone.Fresh air and good food are beneficial to the health.重点用法be of

9、great benefit to = be very beneficial to 对有益 for the benefit of = for sb s benefit为了的利益 benefit from 从中受益练习 用benefit或其短语的适当形式填空。The new highway will _ the villagers. 完成句子(1)Many thousands of patients _(受益于这种新的治疗) and recovered quickly.(2)A large sum of money has been raised_(为了的利益) the poorlyeducate

10、d children in the mountainous districts.5. vt.&vi. (使)联合；结合 combination n. 联合；结合 combined adj. 联合起来的典例We cant always combine work with pleasure. 短语归纳 combine的短语：combine together联合起来 combine A with/and B 使A及B联合起来练习 用combine的短语或其适当形式填空。 1) A _ of factors led to her decision to resign. 2) Success was a

11、chieved by the _ efforts of the whole team.3) As a writer, he _ wit _ passion.6. n日常饮食；vt.& vi.节食；使实施饮食疗法Proper diet and exercise are both important for health.I really ought to go on a diet.Ive put on so much weight since I gave up jogging.The doctor put him on a diet after operation.No sugar in my

12、 coffee，please.Im dieting.短语归纳be/go on a diet节食 put sb.on a diet控制某人饮食 a balanced diet均衡饮食练习：完成句子Would you like some more chicken?No，thanks.I am_(正在节食) and Im trying to_(减肥)7. nU 力量，体力；n.C 长处，强项build up ones strength增强实力 Each of us has our own strengths and weaknesses.Our friendship has steadily str

13、engthened over the years.He hasnt got enough strength to lift the box.(浙江)Practising Chinese kungfu can not only_ones strength，but also develop ones character.Abring upBtake up Cbuild upDpull up重点词组1. 削减；删节The doctor advised the patient to cut down smoking.Our money is running out.We should cut down

14、 expenses.It is impolite for children to cut in when their seniors are talking.Because of the terrible earthquake，the electricity of the city has been cut off.重点用法cut in插话，让某人分享利润 cut up切碎；齐根切掉 cut out删除 cut off切断，中止练习：1. I was just talking to my old friend when Mary_.Acut inBcut down Ccut outDcut u

15、p2. Our teacher advised you to_the article that is too long so as to make it fit the space.Acut awayBcut through Ccut upDcut down2. aux. 应当；应该(没有人称和数的变化，后接动词原形)典例 1). They ought to come tomorrow.2). He thought that they ought to take part in the design. 3). He ought not to do it. / He oughtn t to do

16、 it.4). Ought we to do it at once?练习 按要求填空或翻译。1). He ought to be here, _ he? (反意疑问句)2). I m sorry. I _ (本应该先给你打个 ) to tell you 1 was coming3). I _ (本不该拜访) her, but I missed her so much. 3. 体重减轻；减肥典例 She is trying to lose weight.短语归纳 weight短语及lose短语：put on weight（指人）增加体重，长胖be/take a weight/load off s

17、b s mind使自己/某人如释重负lost heart 泄气；灰心lose one s heart (to sb/sth): fall in love 爱上，钟情于lose one s life 丧生；遇害lose one s balance 失去平衡lose one s breath气喘嘘嘘；上气不接下气lose one s temper发脾气lose touch (with sb/sth) 失去和某人/事物的联系lose face 丢脸lose interest in sth/sb 对某事物/人失去兴趣lose sight of sb/sth 看不见某人/物；忽略或未考虑某事物练习 短语

18、适当形式填空或填介词。1). He s _ _ _ since he gave up smoking. 2). Paying my mortgage was an enormous weight _ (介词) my mind! 3). I ve _ _ _ all my old friends.4. 偷携某物潜逃；逃避惩罚典例 1) They raided the bank and got away with a lot of money. 2) If you cheat in the exam youll never get away with it. If we can get over

19、present difficulties，then everything should be all right.They have a lot in common，so they get along well with each other.I called all day yesterday，but I couldnt get through to you.短语归纳 get词组：get on well with 相处融洽；(工作的) 进展好get through 接通 ；办完；完成get up 起床；起身get over 克服，熬过，恢复get across (使)被理解，(把)讲清楚 g

20、et away (from)(从)脱离，逃脱get rid of摆脱；除掉 get down to (doing) sth.开始认真地做某事get in touch with及取得联系 练习 用get词组填空。1). To my surprise, the baby wolf _ _ _ the dogs and then managed to survive.2). She never arrives on time at the office, but she somehow managed to _ _ _ it.3). Well, stop chatting. It s time we

21、 _ _ _ some serious work.4). The news was a terrible blow to her, but she will _ _ the shock soon.I used to quarrel a lot with my parents，but now we_fine.Aget overBstay up Cget away fromDget along5. = tell lies 说谎典例 It s not right to tell a lie. 短语归纳 tell短语和习语：tell jokes/ a joke讲笑话tell (sb.) a story

22、给某人讲故事 to tell (you) the truth 说实话(用以引出自白或承认的话tell A from B: distinguish A from B 辨认A和B；you can never tell 谁也不知道there is no telling: it is impossible to know 不可能知道练习 用tell词组填空。1). _ _ _ _, I fell asleep in the middle and didn t know how the story ended.2). Can you _ Tom _ his twin brother?3). There

23、s no _ (tell) what may happen. 6. = make ones/a living 谋生典例1). They began to earn their living when they were very young. 2). I earn my living by teaching English in the middle schoo1. 练习 根据句子意思及要求填空或翻译。 1). He had to _ _ _ by delivering newspaper in his youth.2). He earned his living _（介词）a fisherm

24、an.3). 这个小孩从10岁开始就自己谋生。_7. 欠债典例 1). They are in heavy debt to the Bank of China. 2). You saved my life: I am forever in your debt. Today，many developing countries are heavily in debt.Being out of debt makes Tom a light mood.The couple worked hard day and night in order to pay off all their debts.We

25、were poor but we never got into debt. 短语归纳 debt短语和 “in + n.” 表示“在（情况、状况、状态）中”：get/run into debt 欠债；负责out of debt不欠债 pay off one s debts还清债务in danger 在危险中in trouble陷入困境，倒霉 in order 井井有条in surprise 吃惊in public 当众，公开in ruins 呈废墟状态in sight 看见in silence沉默着be in heavy debt负债累累 be in debt to sb.欠某人债be in s

26、b.s debt感激某人；欠某人的情 pay off all the debts还清债务(动作)be out of debt不欠债(状态) get/run into debt陷入债务练习 根据句子意思用debt短语和 “in + n.” 结构填空。1). He _ _ _ after he was out of work. 2). He did all he could to _ _ _ _ in five years.3). He was _ _ when he was young, but has been _ _ _ since he got rich.4). James was _ _

27、, but I dont know how to help him out.5). After the war, the whole city was _ _.完成句子This country_ _(负债) for a year because of the financial crisis.Now things have improved a little.重点句子1.Nothing could be better. (1)形容词的比较级及否定代词nothing连用，表达最高级的含义。有此用法的常用否定词：no，not，never，hardly，nothing，nobody等。(2)表示最高

28、级意义的几种特殊结构：never比较级nothing/noso原级as. nothing/no比较级than.can/couldnever/notenough/tooI ve never heard a more beautiful voice. Nothing in my life shook me so deeply as the first visit to China.You can never be too careful.Did you sleep well last night？ Never better，like a log.Nothing is more precious t

29、han health.练习 根据句子意思及要求填空或翻译。 1). 他从来没有看过一部更令人激动的电影了。_2). 没有什么比旅游更令人愉快。_Did you have a good nights sleep，sir?Oh，exactly.It was such a comfortable bed.I could never have_sleep.A a goodBthe best Ca betterDa bestOur women athletes achieved great success in the Vancouver Winter Olympic Games. Yes.No one

30、 could perform_，I think.AwellBbetter CbestDthe best2. Something terrible must have happened if Maochang was not coming to eat with his as he always did. 解释 情态动词 + have done1). 情态动词must +have done只用于肯定句中，表示对过去发生的事情或状态进行肯定的推测，意为“过去一定做过某事”。It must have rained last night, for the road is wet. You must h

31、ave seen the film the Gold Rush. 2). 情态动词cancould可用于否定句中，即can t have done couldn t have done，表示对过去发生的事情或状态的肯定的推测，意为“过去不可能做过，肯定没做过”。My sister met him at the theatre last night, so he couldn t have attended your lecture. 3). 此外，cancould have done还可用于疑问句中表示对过去发生的事情或状态的不太有把握的推测，常表示“过去可能做过吗?”(注意：表推测的情态动词

32、只有cancould常用于疑问句中)I can t find Tom anywhere in the office building. Where can he have gone? 4). 情态动词maymight +have done表示对已发生的动作或存在的状态进行不肯定的推测，might语气稍弱一点儿，只能用于肯定句和否定句中，表示“过去可能做过某事或过去可能没做过某事”。You might have read about it in the papers. 练习 用括号中所给词的适当形式填空。1). 一Where _ Margaret _ the empty bottles (can

33、; put)?一She _ them away. They must be somewhere (can; throw). 2). 一_he _ as captain of the football team (can; choose)? 一Yes, he must have. 3). 一Hurry up, Michael! It s ten to three. Goodness me! The class _ (must; begin). I ll be late again. 3. He couldn t have Yong Hui getting away with telling pe

34、ople lies. 解释 have sb./sth. doing sth. 使某人或某物一直做某事have sb./sth. doing sth. 容忍某人或某物总是干 have sb./sth. do sth. 使某人或某物做某事(注意不要在do之前加上to) have sb./sth. done sth. 请人做某事(自己不去做或无法做)，(主语)遭受了不好的事情 have sth.to do有事情要做典例I cant have you speaking to your mother in a rude manner.You must apologize to her immediate

35、ly.The teacher had his students reading English for half an hour.Dont be worried.Ill have Tom help you finish the work.Can you go to watch the football match with me tonight?Sorry，but I have an important meeting to attend.练习 用括号中所给词的适当形式填空。1). To my despair, the doctor _ me _ in the room for the who

36、le afternoon(have;wait). 2). I _ my watch _ because it didnt work (have; repair). 3). I can t _ him _ noise all the time (have, make).4). Yesterday Mum _ Tim _ his room since it was in a mess. (have, tidy)5). The woman _ her handbag _ yesterday. (have; rob)(山东卷)I have a lot of readings_before the en

37、d of this term.A completingBto complete CcompletedDbeing completed.重点单词聚焦1Mary has been on a_(节食) for weeks but still hasnt lost any weight.2He pushed against that big stone with all his_(力气)3There is a time_(限制)：you must finish it in 30 minutes.4The two men in the fight_(怒目而视) at each other.5You wi

38、ll_(受益) a lot from morning exercises.6Dont be particular about food.A_(平衡) diet is very important for health.7The letter was not addressed to me but I opened it out of_(好奇)8We aim to offer good service to all our_(顾客)9He thought that crying was a sign of_(软弱)10I have_(查阅) a number of law books in th

39、e British Museums.选词填空spy on；throw it away；get away with；earn ones living；win back；tell a lie；in debt；cut down1He didnt_stealing and was put into prison.2He has been heavily _because of his sisters illness.3Being unable to speak English，he found it hard to_in Canada.4Never think you will not be foun

40、d out when you_.5He was sent to_the enemys military bases during the war.6Are you sure these measures can_ on the number of traffic accidents?Yes，I am.7This is the best chance for you to go abroad.Dont _.8The seventeenyearold girl is determined to_the gold medal in four years.巧思妙解1 (重庆卷)With the wor

41、ld changing fast，we have something new_with all by ourselves every day. Adeal Bdealt Cto deal Ddealing2 Every year，Tom remembers to have some flowers_to her mother on her birthday. AsendBsent CsendingDbeing sent3Excuse me sir，where is Room 301? Just a minute.Ill have Bob_you to your room.AshowBshows Cto showDshowing4Has John repaired his washing machine? He had it_，because he was so busy.Ato repairedBrepair CrepairedDto be repairing5If we have illegal immi