认识图形 （课件）2025年一年级下册数学北师大版(共14张PPT).pptx

Unit6OurLocalAreaTopic3SectionD

新课导入Letswatchavideo

能熟悉并正确运用本课时的重点单词和短语12能熟练使用问路和指路的句型3能熟练使用祈使句

1.Wemuststopandlookbothways______wecrosstheroad.A.beforeB.after C.once D.until2.—______isitfromhere?—About20kilometersawayfromhere.A.Howlong B.HowfarC.Howoften D.Howmuch3.—HowcanIgettotheBankofChina?—Onfoot,Ithink.Youcan_______thestreet.It’snotfarfromhere.A.goout B.goawayC.goup D.gofrom预习检测BAC

4.—Excuseme,whichisthewaytothepostoffice?—Goalongthisroadtotheend.Youcan’t______thepostoffice.A.find B.seeC.get D.miss5.—Thesecondclassisover.______onewillbeginat10:00.Let’shurry(快点).—OK.A.Thethird B.ThirdC.Thethree D.ThreeDA

知识梳理Imperatives(祈使句)祈使句用来表示命令、请求、建议或劝告对方做某事或别做某事等。Closethedoor,please.Becareful!Dontbelateforschoolagain!注意：1.祈使句一般没有主语。2.句末用感叹号或句号。3.读时用降调。4.肯定结构一般以动词原形开头。

祈使句常见结构1)“Be+形容词”型肯定式：Be+形容词否定式：Don’tbe+形容词eg:Bequiet,please.请安静。Don’tbelatenexttime.下次不要迟到。

祈使句常见结构2)“行为动词开头”型肯定式：动词原形+其他否定式：Don’t+动词原形+其他eg:Comehere,please.请过来。Don’tstandup.不要站起来。

祈使句常见结构3)Let型肯定式：Let+人称代词宾格+动词原形否定式：Let+人称代词宾格+not+动词原形Don’t+let+人称代词宾格+动词原形eg:Let’sgo!Let’snotsayanythingaboutit.Don’tletthemmakeanynoise.

祈使句常见结构4)“No+名词或动名词”型意义：表示“禁止”，含否定含义，经常用于公共场合。eg:Nophotos.Nosmoking.

祈使句与问路、指路句型Letssing...

alongacrossonthecornerofacrossfrombetween...and...PrepositionsGrammarBecareful!Dontplayonthestreet.Turnright.Dontparkhere.Imperatives

FunctionsExcuseme,howcanIgettothelibrary?GoalongXinhuaStreetandturnrightatthefirstcrossing.Excuseme,whichisthewaytothehospital?Excuseme,couldyoutellmethewaytoDinghaoBuilding?Goal