(2021新人教版)高中英语必修第三册Unit 5 Section Ⅲ Discovering Useful Structures & Viewing and Talking导学案.doc
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1、Section Discovering Useful Structures your aimn. intention 3how large, important, serious, etc. sth isn. extent 4a play or film whose action and dialogue is with singing and dancingn. musical 5to do sth or try to achieve sth over a period of timevt. pursue 6 to pause before saying or doing sth becau
2、se you are nervous or not surevi. hesitate 7at the end of a period of time or a series of eventsadv. eventually 8in case 以防;以防万一 9to . extent 到程度;在程度上 10on duty 值班;值勤 .教材原句 1 Henry Adams is stuck in a foreign country without money and friends, and with _ (无处可住)(教材 P54) 答案:nowhere to stay 2Second, yo
3、u should go to your _ (最近的领事馆)(教材 P54) 答案:nearest consulate 3He said he _ (将会值班) at the library this afternoon. (教材 P54) 答案:would be on duty 4I think _ (是善良的) of Roderick and Oliver to give Henry the money.(教材 P54) 答案:its kind 5They shouldnt be _ (打赌) on him.(教材 P54) 答案:making a bet 6But Henry might
4、 _ (陷入困境) if they didnt offer him the money.(教材 P54) 答案:get into trouble 7 Well, if they really wanted to help Henry, they could _ (给他 提供一份工作)(教材 P54) 答案:offer him a job 8 Why does the owner of the restaurant want Henry to sit _ (在 别的地方)?(教材 P55) 答案:somewhere else 9Why does the owner think Henry hes
5、itates to _ (支付账单)?(教 材 P55) 答案:pay the bill 10Why does the owner think the bank note is _ (可能是真的)? (教材 P55) 答案:probably real 重点知识重点知识 合作探究合作探究 1obligation n. 义务;职责;责任(教材 P54) 归纳 拓展 Im under no obligation to do it. 我没有义务去做那件事。 He felt obligated to help the homeless. 他觉得有义务帮助无家可归的人。 (1)单句语法填空 We are
6、invited, but we are under no obligation _ (go) I have an _ (obligate) to keep secret for the taxpayer. Im not _ (obligate) to share every little detail of my life with you. 答案:to goobligationobligated (2)单句写作 每个选手都必须遵守这些规则。 Every player is _ to keep the rules. 他感到有责任去帮助身陷困境中的人。 He _ help others who
7、are in trouble. 答案:under an obligationfeels/is obligated to 2 intention n. 打算;计划;意图;目的(教材 P54) 归纳 拓展 I have no intention of going to the wedding. 我无意去参加婚礼。 He has announced his intention to retire. 他已经宣布他打算退休。 This is no accident by the wayits quite intentional. 顺便告诉你,这不是偶然的,根本就是故意的。 What is your no
8、rmal reaction when others hurt you intentionally? 当他人故意伤害你时,你的正常反应是什么? (1)单句语法填空 He left England with the intention of _ (travel) in Africa. If I hurt your feelings, it was not _ (intention) She would never _ (intention) hurt anyone. 答案:travellingintentionalintentionally (2)单句写作 一直以来这就是我的风格。我没有想要改变它
9、。 This has always been my style. I _ of changing it. 很抱歉没把你列在名单里我不是有意的。 Im sorry I left you off the listit _. 答案:have no intentionwasnt intentional 3hesitate vi. 犹豫;迟疑;顾虑(教材 P55) 归纳 拓展 He hesitatedfor a moment before kicking the ball; otherwise he would have scored a goal. 他在踢球前犹豫了一下,不然他就会得分了。 Never
10、 hesitate to turn to the teachers for advice if you meet with some problems in study. 如果你在学习中遇到问题,要毫不犹豫地向老师求教。 We had no hesitation in helping the sufferers when the terrible earthquake happened. 当可怕的地震发生时,我们要毫不犹豫地帮助受难者。 Without hesitation, she leapt into the water and saved the drowning child. 她毫不犹
11、豫地跳入水中,救起溺水的孩子。 (1)单句语法填空 He did not hesitate in _ (make) investments in his hometown. They offered her a job, and she accepted without _ (hesitate) 答案:makinghesitation (2)单句写作 如果你需要什么,马上给我打电话。 If you need anything, dont _ me. 对于买车的事你还犹豫不决吗? Do you still _ buying a car? 答案:hesitate to callhesitate a
12、bout/in/at/over Grammar复习情态动词复习情态动词/过去将来时过去将来时 语法体验语法体验 指出下列句中黑体部分的含义 1That is why Letters from Father Christmas could be the perfect book. 能够 2The children must have been very excited as they opened it.一定;准是 3They might not receive their presents if they were not good.可能 4I was able to hold a knife
13、 and forkand chopsticks!能够 5But there are still some dishes that Dad dare not try even after many years of marriage to my mother.胆敢,敢于 6Mum and I just have to find a way to get him into the kitchen!不得不 7Come on, George, wed better get back now.最好 8“You neednt try it if you dont want to,” Mum said.不必
14、 9I heard that they were going to return to Shanghai soon.将要 10Whenever we had trouble, he would come to help us.总是 语法讲座语法讲座 复习情态动词 一、can 与 could 的用法 1.表示能力:can 用来表示现在的能力,could 表示过去的能力。 I can play basketball now, but I couldnt when I was young. 现在我会打篮球了,但小时候我不会。 2表示请求和许可:could 语气比 can 委婉,但回答时只能用 can
15、。 Can/Could you lend me a hand? 你能帮我一下吗? 3表示推测,意为“可能”。多用于否定句或疑问句。 Can he be in the reading room now? No, he cant be in it. Because I saw him in the office just now. 他现在可能在阅览室吗? 不,他不可能在(阅览室)。因为我刚刚在办公室看见他了。 4表示理论上或习惯上的可能性,意为“可能会”。 Jogging can help you keep fit. 慢跑有助于保持身体健康。 二、may 与 might 的用法 1.表示征求对方的
16、许可或允许(不用 might)对方做某事。 May I come in? Yes, you may/can. 我可以进来吗? 是的,你可以进来。 (No, you cant.不行,你不能进来。) You may go now. 你现在可以走了。 2表示推测(把握不大),意为“可能”,多用于肯定句。might 比 may 可能 性更小。 He may come, or he may not. 他可能来,也可能不来。 It may/might rain this afternoon. Youd better take a raincoat with you. 今天下午可能会下雨。你最好带上雨衣。
17、3may 用于祈使句,表示祝愿。 May you succeed! 祝你成功! 4“may/might as well动词原形” 表示“不妨,还不如”。 I may/might as well start at once. 我还不如马上就动身。 三、must 的用法 1.表示命令或强烈的建议,意为“必须”。 All the students must obey the school rules. 所有学生必须遵守校规。 2表示十分肯定的推测,意为“一定;准是”。 Betty must be in the next room. I can hear her talking there. 贝蒂肯定
18、在隔壁房间。我能听见她在那儿讲话。 3表示说话人的一种态度,意为“偏要;硬要;偏偏”。 Why must he go out in the bad weather? 为什么他偏要在这种坏天气出门? 4must not 表示禁止,意思是“不许” “不准” “不可以”等。 You mustnt stop your car in the busy street. 你不准把车停在繁忙的路上。 5 回答 must 问句时, 肯定回答多用 must; 否定回答多用 neednt 或 dont have to。 Must I finish my homework before eight oclock? Y
19、es, you must.(No, you neednt/you dont have to.) 我必须要在 8 点之前完成作业吗? 是的,必须。(不,没必要。) (1)选词填空(can/may/cant/could/mustnt) He _ be in the reading room. Because I saw him in the playground just now. I _ speak English fluently while he cant. _ you please clean this room, Peter? Sure, but let me finish a game
20、 first. _ your days be filled with happiness! Thanks. You, too! You _ fire without my signal. 答案:cantcanCouldMaymustnt (2)单句语法填空 If I were here five minutes earlier, you _ have finished it on time. It _ have rained last night, for the ground is still wet. Could I come in for a rest, sir? Of course y
21、ou _. No one is getting in your way. It _ be sunny tomorrow, but no one is sure. Fish _ live without water. Me neither. 答案:couldmustcanmightcant (3)单句写作 我们为什么非要在午饭期间参观学校呢? Why _ visit the school at lunch time? 我会弹钢琴但不会拉二胡。 I can play the piano but I _ the erhu. 我可以为病人唱首歌吗,大夫? 不,千万别。病人需要安静。 _ a song
22、for the patient, Doctor? No, _. The patient needs quietness. 安静!客人们随时会来到。 Be quiet!The visitors _ on scene at any time. 我们必须等到天黑以后才能回家吗? 不,不必。事实上,你们可以在 5 点半回家。 _ wait until it gets dark before we can go home? No, you _. In fact, you can go home at 5:30. 答 案 : must we cant play May/Can I sing; you mu
23、stnt may/might beMust we; neednt/dont have to 四、be able to 的用法 be able to 意为“能够,有能力”,不仅有时态、人称和数的变化,而且还可 以与某些情态动词连用(通常不与 can 连用),甚至还可以有非谓语形式。 Since his accident he hasnt been able to leave the house. 自出事之后,他一直未能离开家。 You might be able to persuade him. 你也许能够说服他。 I hope to be able to do the work. 我希望能够胜
24、任这项工作。 I regret not being able to help her. 我很遗憾未能帮助她。 易混辨析:can, be able to 表示“能力”时的区别 can用于指现在,常表示自身具有的能力 be able to用于各种时态,表示经过努力后所具有的能力 Babies can swim when they were born. 婴儿们一出生就会游泳。(自身具有的能力) Without his hard work, he was not able to get good grades. 如果他没有努力工作,他是不可能取得好成绩的。(经过努力) 五、dare 的用法 dare
25、既可作情态动词,也可作实义动词。 1dare 作情态动词时,表示“敢,敢于”,后跟动词原形,常用于疑问句、 否定句和条件句中。此时的 dare 没有人称、数和时态的变化,能单独构成否定和 疑问。例如: Dare you climb that tree? 你敢爬那棵树吗? He darent go there because it is very dangerous. 他不敢去那里,因为那里很危险。 2dare 用作实义动词时,有时态和人称的变化,用 do, does 或 did 来构成否 定句或疑问句。 She didnt dare to say a word, did she? 她一句话也不
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