外研版八年级英语上册课件 Module 12Help Unit 3 (共13张PPT).ppt

Module 12Module 12Unit 3Unit 3Whatshallwedoornotdoifanearthquakehappens?祈使句用来表达叮嘱、劝告、希望、禁祈使句用来表达叮嘱、劝告、希望、禁止、警告、请求或命令等。祈使句最常用止、警告、请求或命令等。祈使句最常用来表达命令。来表达命令。Goandwashyourhands.快去洗手。快去洗手。（命令）（命令）Bequiet,please.请安静。请安静。（请求）（请求）Bekindtooursister.要对我们的妹妹友善。要对我们的妹妹友善。（劝告）（劝告）Watchyoursteps.走路小心。走路小心。（警告）（警告）Nolittering.不要乱扔垃圾。不要乱扔垃圾。（禁止）（禁止）Dontforgettotakeanumbrella.不要忘了带雨伞。不要忘了带雨伞。（叮嘱）（叮嘱）(5)Let构成的祈使句往往用于提出建议。构成的祈使句往往用于提出建议。Letsgotoschooltogether.咱们一起上学去吧。咱们一起上学去吧。let型祈使句有两种否定形式：型祈使句有两种否定形式：1)Let宾语宾语not动词原形其它动词原形其它Lethimnotgo.别让他走。别让他走。Letsnotwastetime.咱们不要浪费时间了。咱们不要浪费时间了。2)Dontlet宾语动词原形其它宾语动词原形其它Dontlethergothere.别让她去那儿。别让她去那儿。口口诀诀下面的口诀总结了祈使句的一般规律。下面的口诀总结了祈使句的一般规律。一起来看看吧一起来看看吧!祈使句，有特点，祈使句，有特点，动词原形摆在前，动词原形摆在前，否定句式也不难，否定句式也不难，Dont放在最前面，放在最前面，其它一律都不变。其它一律都不变。1.Itsanimportantmeeting._(not,be)late.2._(not,make)anynoise!Yourmotherissleeping.3._(not,speak)withyourmouthfulloffood.4._(not,talk)and_(read)aloud.DontbeDontmakeDontspeakDonttalkreadFillintheblanks.5._(not,leave)yourhomeworkfortomorrow,Larry.6._(look)out!Acariscoming.7._(give)ustenyearsandjustseewhatourcountrywillbelike.8._(not,let)thebabycry.DontleaveLookGiveDontlet1.咱们一起玩吧！咱们一起玩吧！2.请不要迟到。请不要迟到。3.回答这个问题。回答这个问题。4.不要这么吵闹。不要这么吵闹。Letsplaytogether.Dontbelate,please.Answerthequestion.Dontmakesomuchnoise.Translatethesesentences.5.上课安静。上课安静。6.不要随处乱扔垃圾。不要随处乱扔垃圾。7.不打架不骂人。不打架不骂人。8.让我看一看吧。让我看一看吧。9.对同学友好。对同学友好。Bequietinclass.Dontthrowrubbisheverywhere.Dontfightorsayrudewords.Letmehavealook.Befriendlytoclassmates.Underline the correct words to complete the first aid instructions.1.Get/Donotgetmedicalhelpimmediately.2.Ask/Donotaskthemwherethepainis.3.Lift/Donotliftthembecauseyoumaydropthem.4.Keep/Donotmovethemtoamorecompleteplace.Completethenewsreportwiththecorrectformofthewordsinthebox.clearinsidepowerrocktroublewarnInformationiscominginthattherecouldbe_becauseofheavyraininthenorth.Thegovernmentis_peopleabout_fallingonmountainroads.Someroadshavealotofrocksonthem,butpeoplearetryingto_themquickly.Insomeplacesthereisno_.Andpeoplemuststay_tokeepawayfromfallingrocks.troublewarningrocksclearpowerinside1.Thereareproblemseverywherebecauseofrain.2.Thegovernmentiswarningpeopleaboutanearthquake.3.Someroadsinthemountainshavealotofrocksonthem.4.Peoplearetryingtocleartherocksofftheroads.5.Thereisnoproblemwithpower.TTFFF