外研版九年级上M5U1.ppt

1、5Unit 1 Dont cross that rope!位于楼上的位于楼上的 adv.在楼上在楼上/向楼上向楼上 adv.upstairs/teil/尾，尾巴尾，尾巴 n.tailagainst the rule违违反反规则规则in trouble遇上麻遇上麻烦烦，处处于困境于困境rule规则规则，法，法则则 n./ru:l/exhibition展展览览，展，展览览会会 n./eksbn/pstez/New words and expressions粗粗绳绳，绳绳索索 n.rope/danstez/往楼下，在楼下往楼下，在楼下 adj.downstairsno wonder难难怪，不足怪，不

2、足为为奇奇missing找不到的找不到的,失踪的失踪的 adj.No entry禁止入内禁止入内entry进进入入权权，进进入入许许可可 n./entr/rp/punish惩罚惩罚，惩处惩处 v./pn/no good不合适的，不方便的不合适的，不方便的No parking.Dont turn left.No smoking.signsWarm upNo entry.No shouting.No photos.Dont touch.Signs around youDont swim.Dont drink.No fire.Dont jump.ACHave a match:Do you know?

3、1.Which of the following signs means “No Bikes”?AB2.Which of the following signs means “No Parking”?BC1.When you see the sign in the subway(地地铁）铁）,you mustnt _.A.eat and drink B.drink C.sleepA2.When you see this sign on the road,you are not allowed to_.A.kill a dog B.walk a dog C.ride a dogB1.表示表示“禁

4、止做某事禁止做某事”的结构的结构2.If从句（条件状语从句）从句（条件状语从句）1.No shouting,please!请勿喧勿喧哗！Dont cross that rope!不要越不要越过那条那条绳子！子！No photos.请勿拍照。勿拍照。课文中的文中的这些些语句表达的都是句表达的都是“禁止做某事禁止做某事”的意思。要表达的意思。要表达这一意思可以采用以下一意思可以采用以下几种几种结构：构：1).No+动名名词这是一种比是一种比较常用的表达方式。例如：常用的表达方式。例如：No joking!不要开玩不要开玩笑！笑！No smoking.禁止吸烟。禁止吸烟。2).No+名词名词 这种结

5、构也可以表达这种结构也可以表达“禁止做禁止做某事某事”的意思的意思。例如：。例如：No entry.请勿入内。请勿入内。No photos.禁止拍照。禁止拍照。3).祈使句祈使句祈使句同样可以用来表示祈使句同样可以用来表示“禁止禁止”。例如：例如：Dont make any noise.不要吵闹。不要吵闹。Keep off the grass.请勿践踏草坪。请勿践踏草坪。Dont touch.禁止触摸。禁止触摸。Keep clear of the door.请勿靠近门。请勿靠近门。Read and observe(观察观察)Turn left!Turn right!Please go upst

6、airs!Go downstairs!Walk on the zebra crossing!Dont smoke!Dont play football!Dont park your car!Please dont eat!Dont pick the flowers!Draw the conclusion(得出结论得出结论)祈使句的结构如下：祈使句的结构如下：(Please)do sth.(Please)Dont do sth.肯定：肯定：否定否定：祈使句的句型：祈使句的句型：Be quiet.Please have a seat.David,pay attention.Dont be afra

7、id.Please do not make a noise.Alan,dont be late.1.动词动词+2.Please+动词动词 3.人名人名+动词动词肯肯定定否否定定在动词前面在动词前面加加dont否否定定1.下面哪个标语提醒我们禁止停车？_A.No Smoking B.No Littering C.No Parking2.Jim,_ me a hand.A.gives B.is giving C.will give D.give3._ careful,Jenny!There is a tree in front of you.A.Am B./C.Be D.Was4.Lets _ o

8、ur time.A.not waste B.no wasting C.not to waste D.no waste5._ higher,and you will see the house.OK.A.Standing B.To stand C.When you stand D.Stand6.Please _ do it.A.he B.let him C.let he D.him7._ let anyone open the door.A.Dont B.Will C.Not D.No8.Dont be late again.Sorry,_.A.I may B.I must C.I will D

9、.I wont禁止吸烟可以怎样表达呢？禁止吸烟可以怎样表达呢？2.If引导的条件状语从句：引导的条件状语从句：译为译为“如果，假如如果，假如”(1)if从句从句+祈使句祈使句(2)if从句从句+主句（一般将来时）主句（一般将来时）本模块先学习本模块先学习if从句的第一种结构：从句的第一种结构：if从句从句+祈使句。祈使句。注注：1.If所引导的是一个完整的句子，一定要有所引导的是一个完整的句子，一定要有主主语语。2.If 从句表示从句表示“如果如果.，就就.”。可以放在可以放在主句之前，也可放在主句之后。主句之前，也可放在主句之后。如果从句在主句如果从句在主句之后无逗号隔开；如从句在主句之前则

10、用逗号隔之后无逗号隔开；如从句在主句之前则用逗号隔开开。If引导的条件状语从句引导的条件状语从句If you want to turn on the recorder,press the blue button.If you want to play back,press the green button.If you think you left it at Emilys house,call her.=Call her if you think you left it at Emilys house.注意：注意：if 从句的谓语动词用从句的谓语动词用一般现在时一般现在时1.If you w

11、ant to go,please tell me.如果你想去的话，请告诉我一声。2.If you want to know more about it,call now.如果你想了解更多的内容，现在就打电话吧。3.If you want to know what to see,look at the guide.如果你想知道有什么可看的，就读一下指南吧。从例句中可以看出，if引导的条件状语从句不是指不是指已经发生的事件已经发生的事件，而是指能够发生或可能发生的而是指能够发生或可能发生的事件。事件。Lets practisePocket moneyIf you want to have enou

12、gh pocket money_ for your parents do houseworkDo more houseworkIf you dont want to be late for schoolPlease _Hurry up!hurry up.What should you do if?If you want her to be happy say sorry to her.Lets talk:What should you do if?1ooIf you want to get good marks,Study hard.根据示例完成下列句子根据示例完成下列句子Example:If

13、 a snake bites you,take a photo.1.If you _(receive)a text message,answer it.2.If you _(do)some work on your computer,save it.3.If a photo isnt good,_(not show)it to your friends.4.If you want more information,_(look)on a website.5.If you_(be tired),_(have)a rest6._(print)the photo if you_(like)it.7.

14、_(look)at our website if the camera _(not work)总结：总结：1.if从句的位置从句的位置 2.if从句的时态从句的时态 3.主句的句型主句的句型主句之前，或主句之后主句之前，或主句之后一般现在时一般现在时动词原形开始的祈使句动词原形开始的祈使句receivedodont showlookare tiredhavePrintlikeLookdoesnt workIf从句（条件状语从句）从句（条件状语从句）祈使句祈使句+if条件状语从句条件状语从句 if条件状语从句，条件状语从句，+祈使句（从句后加逗号）祈使句（从句后加逗号）if条件状语从句要用一般现

15、在时。条件状语从句要用一般现在时。句型结构句型结构时态时态If 条件状语从句（条件状语从句（1）当堂检测当堂检测Can you write them down?1.禁止吸烟禁止吸烟_2.禁止入内禁止入内_3.No photos._4.Dont touch._5.No shouting._6.No parking._No smokingNo entry禁止拍照禁止拍照禁止触摸禁止触摸禁止喧哗禁止喧哗禁止停车禁止停车Complete the sentences with the correct form of the words.1.If you _(listen)to the music,_(b

16、uy)a CD.2.If he_(be)late for school,_(not wait)for him.3.If you _(buy)a new camera,_(get)a good one.4.If the light _(not come)on,_(wait)for one minute.isbuygetdoesnt comewaitdont wait listenbuy5.If you _(want)to know how it works,read the instruction.6.If you want to buy a new camera,_(get)a good one.7.If it _(not work),wait for a minute and then try again.8._(turn)off the radio if you _(not want)to listen to music wantgetdoesnt workTurndont wantListening and vocabulary 1.Match the pictures with