教學(xué)課件同分母加減法

同分母分?jǐn)?shù)加減法同分母分?jǐn)?shù)加減法復(fù)習(xí)1、什么叫分?jǐn)?shù)？

把單位“1”平均分成若干份，表示這樣一份或者幾份的數(shù)，叫做分?jǐn)?shù)．復(fù)習(xí)1、什么叫分?jǐn)?shù)？把單位“1”平均分成若干份，表復(fù)習(xí)2、完成下列填空．

56（1）的分?jǐn)?shù)單位是（）1636（2）里面有（）個89（3）里面有8個（）314（4）3個的和是（）復(fù)習(xí)2、完成下列填空．56（1）的分?jǐn)?shù)單位是（例題在校園廣場上鋪地磚，今天上午鋪了這個廣

１場的，今天下午鋪地磚的人多，鋪了這個廣場的．今天一共鋪了這個廣場的幾分之幾？１６７１６例題在校園廣場上鋪地磚，今天上午鋪了這個廣１６７１６

1２例題１１６

７１６1１６1１６1１６８１６１１６７１６＋

１＋７１６

＝８１６分母不變分子相加＝相同，可以把１個和７個直接加起來，是８個

也就是，化簡后是和的分母相同，也就是它們的分?jǐn)?shù)單位1２＝約分答：今天一共鋪了這個廣場的1２。。1２例題１１６７１６1１６1１６1１練習(xí)1747＋2959＋713213＋練習(xí)1747＋2959＋713213＋算一算：今天上午比下午多鋪了這個廣場的幾分之幾？１１６＝７－７－１１６

＝６１６＝１６３8答：今天上午比下午多鋪了這個廣場的３8。算一算：今天上午比下午多鋪了這個廣場的幾分之幾？１１６＝７－練習(xí)6727－8919－713513－練習(xí)6727－8919－713513－同分母分?jǐn)?shù)加、減法法則

同分母分?jǐn)?shù)相加、減，分母不變，只把分子相加、減．同分母分?jǐn)?shù)加、減法法則同分母分?jǐn)?shù)相加、減，分填空:判斷:填空:判斷:填空:填空:說一說：通過本節(jié)課的學(xué)習(xí)，你有什么收獲？說一說：通過本節(jié)課的學(xué)習(xí)，

Unit6Design

Unit6Design

ChinesePaperArt

Lesson3

TheArtofPaper

Lesson3TheArtofPaper

Haveyouevertriedpaper-cutting?Onwhatoccasionswouldyouusepapercuts.Haveyouevertriedpaper-cuttBackground

Paper-cuttingisoneofChina’smostpopularformsofvisualArt.Paperandscissorsaretheusualmaterialsutilized,butsometimesanengravingknifeisalsoused.Paper-cuttinghasbeenatraditionalartformforhundredsofyears.Itcanbetracedbacktothe6thcentury;butonlybecameapparentafewcenturiesafterpapercutsaremainlyusedasdecorationsforreligiousandornamentalpurposes.BackgroundAshortpapercutmovie.Ashortpapercutmovie.Readthefollowingstatements.Aretheytrueorfalse?Write“T”for“true”,andwrite“F”for“false”.()1.Mrchenlearnedpapercuttingfromanearlyage.()2.Paper-cuttinghasalonghistoryinChina.()3.PapercutsofanimalshavebeenfoundintombsdatingbacktotheSongDynasty.()4.Theyoungladywouldlookattheman’spaper-cuttingskillstochooseherhusband.()5.Peopleliketousepapercutstodecoratethingsandhopetheycanbringgoodluck.()6.Atweddingcelebrationswecanoftenseethepapercutsofaphoenix.TTFFTFListentotapecarefullyandatthesametimepayattentiontothepronunciationandintonation.Readthefollowingstatements.ScanthetextandfindthetopicsentenceormainmeaningofeachParagraph.Para1Para2Para3Para4Para5Para6Para7

Typesofpaper-cuttingConclusionIntroductionofChenZijiangThehistoryofpaper-cuttingPapercutsusedfordecorationPapercutsusedforreligiouspurposePapercutsformakingpatternsordesignsScanthetextandfindthetopAnswerthefollowingquestions:Howmanytypesofpapercutsdopeopleliketomake?Whatarethey?Howdoweknowthatthereisalongtraditionofpaper-cuttinginChina?WhichChinesecharacteroftenappearsinweddingpapercuts?4.Howispaper-cuttingrelatedtofashion?5.WhyisthewritergoingtoseeMr.Chenagain?AnswerthefollowingquestionsHowmanytypesofpapercutsdopeopleliketomake?Whatarethey?

Three.Papercutsfordecorations,forreligiouspurposeandfordesignpattersHowmanytypesofpapercutsdHowdoweknowthatthereisalongtraditionofpaper-cuttinginChina?WeknowthatbecausepapercutsofanimalshavebeenfoundintombsdatingbacktothetimeoftheNorthernandSouthernDynasty.Howdoweknowthatthereisa3.WhichChinesecharacteroftenappearsinweddingpapercuts?TheChinesecharacterofdoublehappinessoftenappearsinweddingpapercuts.3.WhichChinesecharacterofte4.Howispaper-cuttingrelatedtofashion?Byusingpaper-cuttinglikeapatterninclothingoronajewellerybox4.Howispaper-cuttingrelated5.WhyisthewritergoingtoseeMr.Chenagain?Tolearnpapercuttingfromhim.5.WhyisthewritergoingStudylanguagepoints

ReadpartIV(Importantpoints)onyourpaperquickly.Thentrytomakesentencesusingthefollowingwords.….papercutsfordecoration,forreligiouspurposes…….……canbefoundintombswhichdatebaketothetime…..Peopletowhomthedeadpersonwasrelatedwouldmake….(relateto)4.Iwasalsoreadytotryoutpaper-cuttingformyself.StudylanguagepointsReadparCompletethefollowingsentences:1Ican’t_________whathedoes_______(聯(lián)系，涉及)whathesays.Allthings___________________(和……有聯(lián)系)otherthings.3.我到那兒去是為了跟我的父母呆在一起。

Iwentthere____________________stayingwithmyparents.4.我們下個月將試驗新的機器。

We’ll_________thenewmachinenextmonth.relatetoarerelatedto

forthepurposeoftryoutCompletethefollowingsentencGrammarRelativeClauses(1)GrammarFindtheserelativepronounsinthetext:Who,that,which,whose,whom,Whichofthem:canrefertopeople?canrefertothings?refertopossession?FindtheserelativepronounsiLookattheseexpressionsfromthetext:1.apapercuttingexpert(whom)Iinterviewed2.something(that)helearned3.ayoungfarmerwhowantedawife4.papercutswhichshowtheChinesecharacter.5.parentswhosechildhasrecentlybeenbornLookattheseexpressionsfrom

作用類型指代（先行詞）充當(dāng)從句的成分who人主、賓（不在介詞之后）whom人賓whose人或物定that人或物主、賓（不在介詞之后）表which物主、賓as人或物主、賓、表when時間狀where地點狀why原因狀that\inwhich狀such\so…asthesame…as主、賓、表關(guān)系代詞關(guān)系副詞其它語法學(xué)習(xí)（定語從句）way人或物作用指代Trytopickoutalltheattributiveclausesinthetextwithyourpartnersandstudythembyyourselves.Thentrytofinishtheexercisesonyourpapers.

TrytopickoutalltheattribHomework:1.Finishofftherestexercises.2.Gooverwhat’velearned.3.Previewthenewlesson.4.Trymakingapapercut.Homework:Seeyou!Seeyou!同分母分?jǐn)?shù)加減法同分母分?jǐn)?shù)加減法復(fù)習(xí)1、什么叫分?jǐn)?shù)？

把單位“1”平均分成若干份，表示這樣一份或者幾份的數(shù)，叫做分?jǐn)?shù)．復(fù)習(xí)1、什么叫分?jǐn)?shù)？把單位“1”平均分成若干份，表復(fù)習(xí)2、完成下列填空．

56（1）的分?jǐn)?shù)單位是（）1636（2）里面有（）個89（3）里面有8個（）314（4）3個的和是（）復(fù)習(xí)2、完成下列填空．56（1）的分?jǐn)?shù)單位是（例題在校園廣場上鋪地磚，今天上午鋪了這個廣

１場的，今天下午鋪地磚的人多，鋪了這個廣場的．今天一共鋪了這個廣場的幾分之幾？１６７１６例題在校園廣場上鋪地磚，今天上午鋪了這個廣１６７１６

1２例題１１６

７１６1１６1１６1１６８１６１１６７１６＋

１＋７１６

＝８１６分母不變分子相加＝相同，可以把１個和７個直接加起來，是８個

也就是，化簡后是和的分母相同，也就是它們的分?jǐn)?shù)單位1２＝約分答：今天一共鋪了這個廣場的1２。。1２例題１１６７１６1１６1１６1１練習(xí)1747＋2959＋713213＋練習(xí)1747＋2959＋713213＋算一算：今天上午比下午多鋪了這個廣場的幾分之幾？１１６＝７－７－１１６

＝６１６＝１６３8答：今天上午比下午多鋪了這個廣場的３8。算一算：今天上午比下午多鋪了這個廣場的幾分之幾？１１６＝７－練習(xí)6727－8919－713513－練習(xí)6727－8919－713513－同分母分?jǐn)?shù)加、減法法則

同分母分?jǐn)?shù)相加、減，分母不變，只把分子相加、減．同分母分?jǐn)?shù)加、減法法則同分母分?jǐn)?shù)相加、減，分填空:判斷:填空:判斷:填空:填空:說一說：通過本節(jié)課的學(xué)習(xí)，你有什么收獲？說一說：通過本節(jié)課的學(xué)習(xí)，

Unit6Design

Unit6Design

ChinesePaperArt

Lesson3

TheArtofPaper

Lesson3TheArtofPaper

Haveyouevertriedpaper-cutting?Onwhatoccasionswouldyouusepapercuts.Haveyouevertriedpaper-cuttBackground

Paper-cuttingisoneofChina’smostpopularformsofvisualArt.Paperandscissorsaretheusualmaterialsutilized,butsometimesanengravingknifeisalsoused.Paper-cuttinghasbeenatraditionalartformforhundredsofyears.Itcanbetracedbacktothe6thcentury;butonlybecameapparentafewcenturiesafterpapercutsaremainlyusedasdecorationsforreligiousandornamentalpurposes.BackgroundAshortpapercutmovie.Ashortpapercutmovie.Readthefollowingstatements.Aretheytrueorfalse?Write“T”for“true”,andwrite“F”for“false”.()1.Mrchenlearnedpapercuttingfromanearlyage.()2.Paper-cuttinghasalonghistoryinChina.()3.PapercutsofanimalshavebeenfoundintombsdatingbacktotheSongDynasty.()4.Theyoungladywouldlookattheman’spaper-cuttingskillstochooseherhusband.()5.Peopleliketousepapercutstodecoratethingsandhopetheycanbringgoodluck.()6.Atweddingcelebrationswecanoftenseethepapercutsofaphoenix.TTFFTFListentotapecarefullyandatthesametimepayattentiontothepronunciationandintonation.Readthefollowingstatements.ScanthetextandfindthetopicsentenceormainmeaningofeachParagraph.Para1Para2Para3Para4Para5Para6Para7

Typesofpaper-cuttingConclusionIntroductionofChenZijiangThehistoryofpaper-cuttingPapercutsusedfordecorationPapercutsusedforreligiouspurposePapercutsformakingpatternsordesignsScanthetextandfindthetopAnswerthefollowingquestions:Howmanytypesofpapercutsdopeopleliketomake?Whatarethey?Howdoweknowthatthereisalongtraditionofpaper-cuttinginChina?WhichChinesecharacteroftenappearsinweddingpapercuts?4.Howispaper-cuttingrelatedtofashion?5.WhyisthewritergoingtoseeMr.Chenagain?AnswerthefollowingquestionsHowmanytypesofpapercutsdopeopleliketomake?Whatarethey?

Three.Papercutsfordecorations,forreligiouspurposeandfordesignpattersHowmanytypesofpapercutsdHowdoweknowthatthereisalongtraditionofpaper-cuttinginChina?WeknowthatbecausepapercutsofanimalshavebeenfoundintombsdatingbacktothetimeoftheNorthernandSouthernDynasty.Howdoweknowthatthereisa3.WhichChinesecharacteroftenappearsinweddingpapercuts?TheChinesecharacterofdoublehappinessoftenappearsinweddingpapercuts.3.WhichChinesecharacterofte4.Howispaper-cuttingrelatedtofashion?Byusingpaper-cuttinglikeapatterninclothingoronajewellerybox4.Howispaper-cuttingrelated5.WhyisthewritergoingtoseeMr.Chenagain?Tolearnpapercuttingfromhim.5.WhyisthewritergoingStudylanguagepoints

ReadpartIV(Importantpoints)onyourpaperquickly.Thentrytomakesentencesusingthefollowingwords.….papercutsfordecoration,forreligiouspurposes…….……canbefoundintombswhichdatebaketothetime…..Peopletowhomthedeadpersonwasrelatedwouldmake….(relateto)4.Iwasalsoreadytotryoutpaper-cuttingformyself.StudylanguagepointsReadparCompletethefollowingsentences:1Ican’t_________whathedoes_______(聯(lián)系，涉及)whathesays.Allthings___________________(和……有聯(lián)系)otherthings.3.我到那兒去是為了跟我的父母呆在一起。

Iwentthere____________________stayingwithmyparents.4.我們下個月將試驗新的機器。

We’ll_________thenewmachinenextmonth.relatetoarer