新概念英语第二册-Lesson16课件.ppt--(课件中不含音视频)

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1、Lesson 16A polite request policemanget a ticketno parking areaDont stop!Dont cross!Dont turn right!new words and expressionspark v.停放(汽车)stop the car 车在运动中停下来parking area 停车场 no parking:禁止停车(标志)traffic n.交通traffic police 交通警traffic lights 交通灯traffic lights=crossing/turning:十字路口(in)traffic jam 交通堵塞(i

2、n)heave traffic 交通拥挤new words and expressionsnote n.便条;纸钞message 消息make notes 做笔记area n.地段;场地(一块地方)place 地点region 地区(交战、开火)reminder n.提示(可以致人、也可指物)v.指示;提醒reminder sb.of sth.reminder sb.to do sth.new words and expressionsfail v.失败;不及格 She failed in the math exam.1)fail+宾语 失败做某事2)fail in doing sth.在某些

3、方面失败 3)fail to do 没有能够做某事 he fail to swim across the river.4)not fail to do sth 一定能做某事 I can not fail to pass it.我一定会通过的。you can not fail to obey it.你一定会遵守。Ask and answer the questions in pairs.What happens if you park your car in the wrong place?He usually gives you a parking ticket,doesnt he?Are y

4、ou lucky if he lets you go without one?Do the traffic police always give parking tickets?Traffic police are sometimes very polite,arent they?Where were you spending a holiday?What did you find on your car?Did it welcome you to the city?Were you in a“No Parking”area?What did the note ask you to pay a

5、ttention to?A polite request If you park your car in the wrong place,a traffic policeman will soon find it.You will be very lucky if he lets you go without a ticket.However,this does not always happen.Traffic police are sometimes very polite.During a holiday in Sweden,I found this note on my car:sir

6、,we welcome you to out city.This is a“No Parking”area.You will enjoy your stay here if you pay attention to our street signs.This note is only a reminder.If you receive a request like this,you cannot fail to obey it!allow&letallow sb.to do sth.(较为正式)sb.is allowed to do sth.let sb.do sth.(通常不用于被动语态)1

7、.我们不允许大家在教室里吸烟。2.我会让你用我的字典的。We dont allow people to smoke in the classroom.I will let you use my dictionary.Compare following two sentences:Please allow me to buy you a drink.请让我给你买一杯酒。(听起来显得客气,庄重)Let me buy you a drink.让我来给你买一杯酒。(听起来更亲切,随便)However&but However 是副词,既可放在句子的开头,又可放在句中。But 是连词,用来连接一个句子,它

8、只能位于句首,而且强调对比。a)He had an invitation;_,he did not go.b)He had an invitation,_ he did not go.howeverbut票很贵,但我们还是决定去。a)The tickets are expensive;however,we still decided to go.b)The tickets are expensive;but we still decided to go.Fail to do sth.Fail to do(=do not do,cannot do)表示“不,不能,没有”1)他始终每星期给母亲写信

9、。2)他没有还清债。He never fails to write(=always writes)to his mother every week.He failed to pay his debts.Compare:He failed to pass the exam.He did not fail to pass the exam.他没有通过考试。他没有通过考试。他通过了考试。他通过了考试。Remind:表示使想起,或“记起,提醒”remind sb.to do.Remind sb.of sth.我提醒他寄信。这张照片使我想起了他的父亲。I reminded him to post the

10、 letter.This photo reminds me of his father.1.我没有忘记寄你的信。2.替我向你的母亲问好。I remembered to post your letter.Remember me to your mother.Compare:条件句(Conditional Sentences)类型1-真实条件句(Sentences of Real Condition)条件句是表示在某种条件或要求下,预期会产生某种结果的表达方法。在“真实条件句”中,IF-从句中假设的情况是有可能实现或发生的.1、IF从句中的动词用一般现在时态从句中的动词用一般现在时态,主句中的动词

11、主句中的动词用一般将来时态用一般将来时态.主句和从句的位置可以互换:主句和从句的位置可以互换:If he is out,Ill call tomorrow.If he has time,he will come.Youll miss the train if you dont hurry.Hell get there in time if he runs.2、如果要用从句表达将来的意思、如果要用从句表达将来的意思,也只能用一般现在时也只能用一般现在时态的形式来表达态的形式来表达,而绝不能用将来时的形式:而绝不能用将来时的形式:If it rains tomorrow,I will stay a

12、t home.Well go out for a picnic if it is fine next Sunday.If he has enough money next year,hell go to Europe.3、主句的变化形式:a)IF从句中的动词是现在时从句中的动词是现在时,主句中的主句中的shall/will可以用其可以用其它情态动词代替:它情态动词代替:If it rains,we can/must/may stay at home.If it stops raining we can/may go out.If you want to lose weight,you must

13、 eat less bread.b)IF从句中的动词用现在时从句中的动词用现在时,主句还可以是主句还可以是“命令命令,恳求或劝告恳求或劝告”If you want to lose weight,you had bettereat less bread.If you want to lose weight,eat less bread.If you see Tom tomorrow,could you ask himto ring me?4、IF从句的变化:a)从句中可以用现在进行时从句中可以用现在进行时,表示现在的行为表示现在的行为或将来的安排:或将来的安排:If you are leaving tomorrow,Ill send you a car.If you are looking for Peter,youll find him in the library.b)IF从句中还可用情态动词从句中还可用情态动词(can,could):He will come tomorrow if he can.If they can help you,they will.

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