Unit3Weshouldobeytherules.(Lesson17)（课件）-英语五年级下册

Unit3Weshouldobeytherules.Lesson17ClassRulesWeshouldobeytherules.Askandanswerquestionsactively.

Don'teatinclass.Don'tmakenoise.

Bequiet.祈使句：

是表示命令、请求、建议或劝告的句子。肯定祈使句一定是以动词原形开头(有时用please)，否定祈使句，在句子前面加Don’t。

Idols(身边榜样):whoobeytherulesverywellinourschool?XXisagoodstudentatschool.XXcomestoschoolearly.XXnevermakesnoiseinclass.XX……HomeRulesWhyisPeternotagoodboyathome?Hedoesn’tliketodohousework.Hereadsinbedandhegoestobedverylate.HewatchesTVtoooften.Heoftenmakesamessinhisroom.HomeRulesYoushould:…Youshouldn’t:…Tips：Should:应该,情态动词,后面加动词原形,变否定句时在should后面加not,缩写为shouldn’t.SocialRulesDotheyobeytherules?whatmustwedo?必须must:必须，

情态动词，后面加动词原形，变否定句时在must后面加not,缩写为mustn’t,可以翻译成一定不要。keepoffthegrass

不要进入草地Wemust

keepoffthegrass.不接近whatmustwedo?pickflowers摘花Wemustn’tpickflowers.whatmustn'twedo?Wemustn’tlitter.litter乱丢杂物NoLitting!=Don'tlitter.Youmusttakegoodcareofyoungchildren.好好照顾小孩子Children

childYoumustn’tspitontheground.吐痰地面Youmusthelpoldpeople.redlightwaitfor等待green

lightcrossthestreet横穿马路What

willyousaytothem?Youmustn'tcrossthestreetnow.Youmustwaitforthegreenlight.Youmustn'tplayonthestreet.Lookout!争做文明志愿者Practice1）We________crossthestreet.A.must B.mustn’t2）We______waitforthegreenlight.A.must B.mustn’t3）We_______keepoffthegrass.A.must B.mustn’t4）We_________takegoodcareofyoungchildren.A.must B.mustn’t5）We________litter.A.must B.mustn’tBAAABPractice英翻汉Youmustn’tcrossthestreet.

________________2.Youmustkeepoffthegrass.

_________________3.Youmusttakegoodcareofyoungchildren.

___________________4.Youmustn’tspitontheground.

___________________你禁止穿越街道。你必须远离草坪。你必须照顾好小孩子。你禁止随地吐痰。Summary1.Lookout.小心

2.must必须mustn’t禁止Youmustwaitforthegreenlight.keepoffthegrass.takegoodcareoftheyoungchildren.Youmustn’tcrossthestreet.picktheflowers.spitontheground.litter.THANKSFORWATCHINGWeshouldobeytherules.Answerthequestions:IsGaoWeiagoodboy?2.Doeshe