2016春人教版数学四下9.2《鸡兔同笼问题的运用》ppt课件

BLECUNTRUEDNOTTRUE10JACKDIDNTKNOWWHENNAPOLEONHADDIEDBECAUSE_AHEDIDNTDOWELLINHISHISTORYBHEDIDNTTAKEANYNEWSPAPERCHEDIDNTKNOWNAPOLEONDHEDIDNTKNOWNAPOLEONLEFTTHEUNIVERSITY七、翻译下列句子。我从来没有去过游乐场。你呢我也没有。IHAVE_TOANAMUSEMENTPARK_YOU_I2以前我从来没读过这么好笑的故事。I_NEVER_AFUNNYSTORYLIKE_3你曾经和你的同桌争吵过吗_YOUEVER_YOURDESKMATE4你为什么想去讲英语的国家工作_DOYOUWANTTO_INAN_COUNTRY5我们每天花一个小时做作业。IT_USANHOUR_OUR_八、书面表达。你到过什么地方你对它有什么深刻的印象请用英语写一篇短文来介绍你游历过的城市或风景点。80词左右。_八年级英语（下）第八年级英语（下）第610单元检测题12班级_姓名_学号_等级_一、词汇考查。A用所给单词的适当形式填空。1LUCY,WOULDYOUMIND_GOSHOPPINGWITHMECERTAINLYNOT2YOUMUSTDOMOREEYEEXERCISES_KEEPYOUREYESGOOD3THISGIRLGOT_INTERESTINMUSICWHENSHEWASFIVEYEARSOLD4MYCOUSINDOES_GOODINPLAYINGBASKETBALL5IHAVEFINISHED_DOMYHOMEWORKHAVEYOUFINISHEDYOURSB根据首字母完成单词。1THISSUPERMARKETISVERYC_,LETSGOTOANOTHERONE2TOMISBADLYHURTHEWALKSA_THESTREETSLOWLY3EVERYONEKNOWSTHED_BETWEENTHESETWOSCHOOLS4IREALLYWANTTOKNOWWHYYOURMOTHERGETSSOA_5HISFATHERWORKSINABARBERSHOP,HEWORKSASAHAIRS_二、用所给动词的正确形式填空。1LILYSPARENTSTHINKITISNOTEASYFORHER_MOVESUCHAHEAVYBOX2TIMCHOSETHEBIGHOUSE_LIVEIN3THEY_SEETHEFILMTITANICTHEY_SAYTHEYLIKEDITVERYMUCH4IFYOUDONTHURRYUP,YOU_BELATEFORSCHOOL5MYBROTHERALWAYS_TRYHISBESTTODOEVERYTHING,HEISAHARDWORKINGBOY6I_HAVEMYLUNCH,I_HAVEITJUSTNOW7_SPEAKENGLISHASOFTENASPOSSIBLEISAGOODWAYTOLEARNENGLISH8HOWABOUT_GOSWIMMINGWITHOURCLASSMATES,LUCY三、句型转换。1THISBOYHASVISITEDTHEGREATWALLALREADY变为一般疑问句_THISBOYVISITEDTHEGREATWALL_2TOMISSOYOUNGTHATHECANTGOTOSCHOOL（同义句）TOMISNT_GOTOSCHOOL3DAVIDCANTGOTOTHEMEETING,SOIWILLGOINSTEAD（同义句）IWILLGOTOTHEMEETING_DAVID4IWONTBUYTHECARBECAUSEITSTOOEXPENSIVE（同义句）IWILLBUYTHECAR_ITDOESNTTOOMUCH9THECHILDISTOOYOUNGTOPUTONCLOTHESHIMSELF同义句DIFFICULTFORTHECHILDTOHIMSELF四、单项选择。1_ELEPHANTISBIGGERTHAN_SHEEPAAN,ABA,/CAN,/D/,/2HETEACHESUS_ENGLISHWELLAHOWTOSPEAKBWHATTOSPEAKCWHENTOSPEAKDHOWCANSPEAK3HELIKESPLAYING_PIANOANDSOMETIMESHELIKESTOPLAY_BASKETBALL,TOOATHE,THEB/,/C/,THEDTHE,/4CANYOUDOTHEWORK_ANOTHERWAYAINBONCBYDWITH5ALLOFUSFOUND_DIFFICULTFORUSTOWORKOUTTHEMATHPROBLEMANDITWASVERYNICE_HIMTOHELPUSAITS,OFBIT,FORCITS,FORDIT,OF6DOYOUHAVEENOUGHMENTOCARRYTHESECHAIRSNO,ITHINKWENEED_MENAANOTHERTWOBTWOOTHERSCMORETWODTWO7THELIGHTINTHEROOMWASNT_FORME_AENOUGHBRIGHTLYREADINGBBRIGHTLYENOUGHTOREADCENOUGHBRIGHTLYREADINGDBRIGHTENOUGHTOREAD8WHATDOPEOPLE_THISKINDOFPLANTSASAYBTELLCSPEAKDCALL9MUM,IVEFINISHEDMYCOMPOSITIONWOULDYOULIKEMETOREADITTOYOUPLEASEDO_ALETSSEEITBHOWGOODTHESTORYISCITSQUITEGOODDIMSUREWELLENJOYIT10DOYOUALWAYSSPENDMUCHTIME_YOURHOMEWORKNO,BUTISPENTHALFANHOUR_THEPHYSICSPROBLEMYESTERDAYEVENINGADOING,INBON,DOCDOING,ONDDO,ON11THEREARESOMANYBEAUTIFULPRESENTSINTHESHOPTHATIDONTKNOW_AWHICHONETOCHOOSEBTOCHOOSEWHICHONEDWHICHTOCHOOSEONEDTOCHOOSEONEWHICH12_HAVEYOUBEENINTHISSCHOOLFORFIVEYEARSAHOWOFTENBHOWLONGCHOWSOONDWHEN13ALLOFHISTEACHERSAREFRIENDLY_HIMANDITISQUITEGOOD_HISSTUDYATO,ATBTO,FORCFOR,TODFOR,FOR14THEBADNEWSMADEEVERYONE_AWORRIEDLYBFELTWORRIEDCFEELWORRYDWORRIED15LINTAO,WHERE_AREYOUGOINGAOTHERPLACEBOTHERTHINGSCANOTHERDELSE五、完形填空。MRKINGWORKEDINAFACTORYHEWASTALLAND1HELIKEDPLAYINGBASKETBALLHESPENTALOTOF2ONITANDSOMETIMESHEWASLATEFORTHEWORKITMADEHISBOSS3ANDONEDAYTHEYOUNGMAN4HETRIEDTOFINDANOTHERPIECEOFWORK,BUTHE5SEVERALMONTHSLATERHEGOTINTOTROUBLEANDLIVEDA6LIFEONCEHEMETWITHHISFRIENDINTHESTREETTHEMANFELT7FORHIMANDINTRODUCEDHIMTOHISBROTHERWHOWASA8OFASPARETIMEPHYSICALCULTURALSCHOOLITWASJUSTINGREATNEEDOFSOMESWIMMINGCOACHESANDHEBEGANTO9THECHILDRENTOSWIMTHEREHEWASNTGOODWORKERANDHEWASNTAGOODCOACH,EITHERTWOMONTHSLATERTHECHILDREN10NOTHINGFEWOFTHEMCOULDSWIMINTHE11RIVERITWASSATURDAYANDTHEWEATHERWASVERY12THECHILDRENWOULDNTSTAYINTHECLASSROOMANDTHEYHOPEDTOSWIMINTHERIVERMRKINGFOUNDITWASDIFFICULTTO13THEMHEHADTOAGREEWITHTHEMBEFORETHEYSTARTED,HEDREWALINE14THEKNEEOFEACHCHILDWITHAREDPENHESAIDTOTHEM，“COMEOUTOFTHERIVERATONCEIFTHEWATER15THELINE”1AWEAKBSTRONGCFATDILL2ATIMEBHOPECMONEYDSOUND3APLEASEDBSADCANGRYDFRIENDLY4AUSEDBWASUSEDCSENTOFFDWASSENTOFF5ACRIEDBSHOUTEDCFAILEDDLAUGHED6ABUSYBUSEFULCLIGHTDHARD7ASORRYBSAFECDANGEROUSDSURPRISED8AWORKERBHEADMASTERCDRIVERDNURSE9ASHOWBTEACHCTELLDASK10ADIDBSAWCHEARDDLEARNED11ADEEPBWIDECNARROWDLOW12ACOOLBWARMCHOTDCOLD13ASAVEBLEAVECHURTDSTOP14ABELOWBINCOVERDBETWEEN15AWASHESBREACHESCTOUCHESDTOOK六、阅读理解。AAYOUNGMANWHODIDNOTHAVEMUCHMONEYWASCOMINGHOMEBYTRAINONEDAYHEGAVEHISLASTFEWCOINSTOABEGGAR乞丐,BUTTHENHESAWANOTHERONE,ANDFORGOTTHATHEDIDNTHAVEANYMONEYABOUTHIMHEASKEDTHEBEGGARIFHEDLIKETOHAVELUNCHWITHHIM,ANDTHEBEGGARAGREEDSOTHEYWENTINTOASMALLRESTAURANTANDHADAGOODMEALATTHEENDTHEMANCOULDNOTPAYTHEBILLOFCOURSETHEBEGGARHADTODOSOTHEYOUNGMANWASVERYSORRYABOUTTHIS,SOHESAIDTOTHEBEGGAR,“COMEHOMEWITHMEINATAXI,MYFRIEND,ANDILLGIVEYOUBACKTHEMONEYFORLUNCH”“OH,NO”THEBEGGARANSWEREDQUICKLY“IHADTOPAYFORYOURTAXITOO”1FROMTHEPASSAGEWECANGUESSTHAT“COIN”ISAKINDOF_AFOODBMONEYCDRINKDTICKET2THATDAYTHEYOUNGMANHADHISLUNCH_AINHISFRIENDSHOUSEBINTHETRAINCINARESTAURANTDINHISOWNHOUSE3THEYOUNGMANASKEDTHESECONDBEGGARTOAMEALBECAUSE_AHEHADNOMONEYTOPAYFORTHETAXIBHEDIDNTWANTTOPAYFORTHETAXIEHEWANTEDTOHELPTHEBEGGARDHEDIDNTWANTTOGETBACKTHEMONEYFORLUNCH4THEBEGGARDIDNTWANTTOGOTOTHEMANSHOMEBYTAXIBECAUSE_AHEHADNOMONEYTOPAYFORTHETAXIBHEDIDNTWANTTOPAYFORTHETAXIFHEDIDNTWANTTOGIVETHEMANANYTROUBLEGHEDIDNTWANTTOGETBACKTHEMONEYFORLUNCH5WHATKINDOFPERSONWOULDYOUSAYTHEYOUNGMANWASAHEWASNOTRICHBUTKINDBHEWASNEITHERRICHNORKINDHHEWASRICHBUTNOTKINDDHEWASRICHANDVERYKINDBAEROPLANES飞机ARESLOWLYDRIVINGMEMADILIVENEARANAIRPORTANDPASSINGPLANESCANBEHEARDNIGHTANDDAYTHEAIRPORTWASBUILTYEARSAGO,BUTFORSOMEREASONITCOULDNOTBEUSEDTHENLASTYEAR,HOWEVER,ITCAMEINTOUSEOVERAHUNDREDPEOPLEMUSTHAVEBEENDRIVENAWAYFROMTHEIRHOMESBYTHENOISEIAMONEOFTHEFEWPEOPLELEFT剩下的SOMETIMESITHINKTHISHOUSEWILLBEKNOCKEDDOWNBYAPASSINGPLANEIHAVEBEENOFFERED提供ALARGESUMOFMONEYTOGOAWAY,BUTIAMDETERMINED下定决心的TOSTAYHEREEVERYBODYSAYSIMUSTBEMADANDTHEYAREPROBABLYRIGHT1WHEREDOESTHEWRITERLIVE_2ARETHEAEROPLANESNOISYORQUIET_3HOWMANYPEOPLELEFTTHEIRHOMESBECAUSEOFTHENOISE_4WHATISHEDETERMINEDTODO_5WHATDOESEVERYBODYSAYABOUTHIM_七、根据汉语提示完成英语句子。1如果我在这儿吸烟你介意吗_MYSMOKINGHERE6你毕业之后计划干什么WHATWILLYOUPLANTODOAFTER_SCHOOL7你应当尽自己的最大努力记住这些新单词。YOUMUSTTRYYOURBESTTO_ALLTHENEWWORDS_8这儿有一封感谢信是给你的。HEREISA_FORYOU9老师叫我们不要在课堂上玩游戏。THETEACHER_US_PLAYCOMPUTERGAMES_CLASS八、书面表达。在你成长过程中，家人（父母、祖父母等）倾注了大量的心血，他们对你的生活和学习除了给关心、帮助外，也会提出一些建议。A根据你的情况,列举五点家人给予你的关心、帮助或建议，用简短的文字分别填入空白处。1_2_10_4_11_B请根据上面你所答的内容，选择一点或几点，写一篇短文，向你的好友谈谈你的家人给予你的关心、帮助或建议以及你的想法。参考词汇BESTRICTWITH（对某人要求严格）ALLOWSBTODOSTH（允许某人做某事）IS/AREVERYKINDANDHELPFUL_八年级英语（下）诊断性检测题参考答案UNIT1一、1FEWER2FEWER3LESS4MOREHAPPIER5LESS6FREETIME10INFOURYEARS8ONCOMPUTERS9WINAWARD10PLAYTHETRUMPETS11FIFTH12HEAVILY13LIVING14LEISURE15INVENTION16POLLUTION17VACATION18CREDIT19CLOSED20BETTER二、21SCIENTIST22BUILDING23MYSELF24SKATING25TOOTHBRUSHES三、A261WONTHAVE27WILLWRITE28WILL/ISGOINGTORAIN29ISREADING30AREDANCINGB31WILLCLEAN32YES,THEYWILL33WONTGO34WILL,HAVE35WHEREWILL,WORK四、36B37C38A39D40B41C42A43D44D45A五、46INTHEFUTURE47ARE,USEDBY48DOYOUTHINK49ASTRONAUT,SPACESTATION50FELLINLOVEWITH六、A5155ADABA5660BAABCC61HOT62DIFFERENCE63COOL64COUNTRY65WARMER66TAKE67ENGLAND68COOLER69TAKE70SOUTHWEST七、71INVENTOR72MEETINGS73EAT74TURNEDON75LISTENEDTOMUSIC7680ABDBD八、ONEPOSSIBLEVERSIONILIKEENGLISHIWANTTOBEANENGLISHTEACHERINTENYEARSILLTEACHMYSTUDENTSASWELLASPOSSIBLEILLGIVEMYLESSONSINASMUCHENGLISHASICANILLTRYMYBESTTOMAKEMYLESSONSLIVELYANDINTERESTINGBESIDES,WEALLLIKELISTENINGTOSTORIESSOILLTRYOFTENTOTELLMYSTUDENTSSTORIESINENGLISH,SOTHATTHEYLLBEINTERESTEDINENGLISHANDCANIMPROVETHEIRLISTENINGIBELIEVETHATICANBECOMEAGOODTEACHERUNIT2一、A1ARGUMENT2HAVING3FREEDOM4PRESSURE5SOLUTIONC1STYLE2SERIOUS3EXCEPT4PREPARING5GENIUS二、1TOSTAY2ARGUED3TOBUY4TOGET,TAKE5TOREACH6COMPARE,WORK7ISSUFFERING,GO三、1ARENT,SAME2WHOSEDESK3MORE,ANYOTHER4DIDNT,UNTIL,RETURNED四、15CDACA610DADAB1115ACDAA五、15CBDAA610ABCDA六、15CADBD610BACBA七、1FOUNDITDIFFICULTNOTEASY2HEADACHE,UPSET,WHATTODO3BORROW,FROM,RETURNTHEM4GETTINGALONG/ONWELLWITH5ITSEEMED,BYTHEMSELVES八、ONEPOSSIBLEVERSIONTHISTERMISHOULDSTUDYHARDERIAMGOODATMATH,PHYSICSANDSCIENCELESSONSMYENGLISHISNOTGOODITHINKISHOULDLEARNFROMMYFRIENDNARIHISENGLISHISGOODPERHAPSHEWOULDLIKETOHELPMETEACHERSAID,MYCOMPOSITIONSWERENOTGOODSOISHOULDREADMOREUSEFULBOOKSAFTERCLASSIBELIEVEIWILLDOWELLINENGLISHONTHEOTHERWAY,ISHOULDDOMOREEXERCISE,THISWILLMAKEMESTRONGILIKEPLAYINGBALLGAMESAFTERCLASSISHOULDMAKEMOREFRIENDS,BECAUSETHEMOREWEARETOGETHER,THEHAPPIERWEAREUNIT3一、A1FLIGHT2SAFELY3BARBERS4SURPRISINGSURPRISEDD1STRANGE2BUSINESS3FOREIGNER4OURSELVES5ACTION二、1WERE,DOING,WASWATCHING2WASWALKING,MET3BOUGHT4WASSHOUTING12CALLED6WASWORKING7TEACHING8WEREDOING三、1WHEREWAS2WHATWERE,DOING3WENTWITH4HAPPENEDTO5TOO,TO四、15BCCAA610CACCC1115CCCDC五、15CBABD610AACBD六、15BADAA610BCADD七、1WASSNOWINGTOOKOFF2SOTHAT,CATCH3AREDRESSEDIN,CELEBRATE13ARECHASINGAFTER5WHILE,WEREPLAYING八、ONEPOSSIBLEVERSIONLASTSATURDAYWEHADNOLESSONSMYFRIENDSANDIDECIDEDTOHELPTHEFARMERSPICKTHEAPPLESTHEYWEREVERYBUSYLIHONGANDICLIMBEDUPABIGAPPLETREETHEREWEREALOTOFAPPLESONITAFTERASHORTTIMEWEPICKEDALOTOFAPPLESXIAOZHUANCOULDNTGETTHEAPPLESBECAUSETHEYWERETOOHIGHLILEICARRIEDALADDERFORHERSOONWEPICKEDMANYBASKETSOFAPPLESANDTHETRUCKSARRIVEDWEALLGOTDOWNANDHELPEDTOCARRYTHEAPPLESONTOTHETRUCKS02/者勰橢橢攓攓8蘒茳042016春人教版数学四下92鸡兔同笼问题的运用PPT课件课件简介2016春人教版数学四下92鸡兔同笼问题的运用PPT课件2全班一共有38人，共租8条船，每条船都坐满了，大小船各租了几条第九单元第2课时（数学广角）人教版四年级数学下册（1）鸡兔同笼，从上面数有4个头，从下面数，有10只脚，鸡和兔各有几只一、复习引入（2）鸡兔同笼，从上面数有6个头，从下面数，有18只脚，鸡和兔各有几只（3）鸡兔同笼，从上面数有10个头，从下面数，有30只脚，鸡和兔各有几只答鸡3只，兔1只。答鸡3只，兔3只。答鸡5只，兔5只。1你用什么方法解决鸡876543210兔012345678脚1618202224262830322从表中，你发现了什么每多一只鸡，就少两条腿；每多一只兔，就多两条腿。一、复习引入1笼子里有若干只鸡和兔，从上面数有25个头，从下面数，有80只脚。鸡和兔各有几只答鸡有10只，兔有15只。用假设法二、方法运用（1）如果笼子里都是鸡，25250（只）805030（只）兔30215（只）鸡251510（只）（2）如果笼子里都是兔，254100（只）1008020（只）鸡20210（只）兔251015（只）二、知识运用问题（1）这道题是“鸡兔同笼”这一类的问题吗（2）解决这个问题，你喜欢用哪种方法呢2有龟和鹤共40只，龟的腿和鹤的腿共有112条。龟、鹤各有几只日本的“龟鹤算”问题就是从我国的“鸡兔同笼”问题演变来的。（1）如果都是鹤。如果都是鹤，就有40280条腿，比题目中少1128032条腿。那么需要用龟换鹤，换上一只龟，腿的总数就多2条，有32216只龟。所以有401624只鹤。二、知识运用2有龟和鹤共40只，龟的腿和鹤的腿共有112条。龟、鹤各有几只答龟有16只，鹤有24只。如果都是龟，就有404160条腿，比题目中多16011248条腿。那么需要用鹤换龟，换上一只鹤，腿的总数就少2条，有48224只鹤。所以有402416只龟。（2）如果都是龟。二、知识运用2有龟和鹤共40只，龟的腿和鹤的腿共有112条。龟、鹤各有几只答龟有16只，鹤有24只。（1）这道题是“鸡兔同笼”这一类的问题吗（2）题目中哪个数量相当于“头数”哪个数量相当于“脚数”3新星小学“环保卫士”小分队12人参加植树活动。男生每人栽了3棵树，女生每人栽了2棵树，一共栽了32棵树。男、女生各有几人二、知识运用（1）如果都是男生栽树。如果都是男生栽树，就栽了12336棵树，比题目中多36324棵树。那么需要用女生换男生，一名女生比一名男生J唀愀唃愀伀儀帀愀漀摧愁愁少栽1棵树，有414名女生。所以有1248名男生。二、知识运用3新星小学“环保卫士”小分队12人参加植树活动。男生每人栽了3棵树，女生每人栽了2棵树，一共栽了32棵树。男、女生各有几人答男生有8人，女生有4人。（2）如果都是女生栽树。如果都是女生栽树，就栽了12224棵树，比题目中少32248棵树。那么需要用男生换女生，一名男生比一名女生多栽1棵树，有818名男生。所以有1284名女生。二、知识运用3新星小学“环保卫士”小分队12人参加植树活动。男生每人栽了3棵树，女生每人栽了2棵树，一共栽了32棵树。男、女生各有几人答男生有8人，女生有4人。1盒子里有大、小两种钢珠共30颗，共重266G。已知答钢珠每颗11G，小钢珠每颗7G。盒中大、小钢珠各有多少颗三、强化练习（1）如果全部是大钢珠，3011330（G）33026664（G）1174（G）小钢珠64416（颗）大钢珠301614（颗）（2）如果全部是小钢珠，307210（G）26621056（G）1174（G）大钢珠56414（颗）小钢珠301416（颗）答大钢珠有14颗，小钢珠有16颗。（1）如果全租大船，6848（人）483810（人）642（人）小船1025（条）大船853（条）（2）如果全租小船，4832（人）38326（人）642（人）大船623（条）小船853（条）答大船租3条，小船租6条。三、强化练习3自行车和三轮车放在同一个车棚里，数数一共有8辆，数数轮子一共有19个。问自行车有几辆三轮车有几辆三、强化练习（1）如果全部是自行车，8216（个）19163（个）321（个）三轮车313（辆）自行车835（辆）（2）如果全部是三轮车，8324（辆）24195（辆）321（辆）自行车515（辆）三轮车853（辆）答自行车有5辆，