苏教版四年级数学下册第1页第1页本节课我们主要来学习用字母表示数,同窗们要能够用字母表示一个数,一个公式,一个表示式,并且能够理解每个字母含义。第2页第2页数青蛙第3页第3页数青蛙一只青蛙一张嘴,两只青蛙两张嘴,三只青蛙三张嘴,第4页第4页数青蛙一只青蛙一张嘴,两只眼睛四条腿。第5页第5页学校美术组有24人。(1)书法组比美术组多6人,书法组有()人。24+6(2)舞蹈组比美术组多9人,舞蹈组有()人。...
临西县第一中学邓冬夏学习目标解决一元一次不等式(组)中含有字母参数的问题。知识回顾1.解一元一次不等式的基本依据是什么?2.解一元一次不等式的主要步骤是什么?3.解一元一次不等式组的主要步骤是什么?(1)分别解不等式组中的各个不等式;(2)在数轴上表示各个不等式的解集;(3)求出这几个不等式解集的公共部分.例1.已知a,b为常数,关于x的不等式ax>b的解集是x<,求a的取值范围。分析:1.利用那条不等式性质?2.注意什么...
1、《字母表示数》课后练习姓名:2017/3/24知识要点:1、数字和字母相乘时,乘号可以写成小圆点,也可以不写,数字一般在字母的前面。所以4×a或4a;a×a可以写成a²,读作a的平方,表示两个a想乘。2、用字母表示正方形的周长的计算公式:C=4a;用字母表示正方形面积的计算公式:S=a²;用字母表示长方形周长的计算公式:C=2(a+b);用字母表示长方形面积的计算公式:S=ab。知识达标:一、填空。1、2016年“五一”期间,某铁路...
精品教学网www.teachcn.net北师大版小学四下7.1字母表示数能力提高题(60分钟100分)一、课内知识综合练习题(40分)1、根据运算定律填上数字或字母。(12分)m+(n+6)=(□+□)+□m×(6×n)=(□×6)×□a×(5+b)=□×□+□×□a×x+b×x=(□+□)×□2、我来显身手。(填一填)(16分)(1)买4枝同样的钢笔,每枝a元,买5枝同样的铅笔,每枝b元。那么:4a表示:()5b表示:()4a+5b表示:()4a-5b表示:()(2...
第1页共10页字母读本的少儿故事有一个人新为字母读本写了些小诗;就像旧字母读本一样,每个字母两行;他认为该有点新东西,那些旧诗太过时了①,现在他十分喜欢自己写的了。这新的字母读本只是刚写出来,和那本印刷装订好的老读本一起被并排放在那大书柜上,书柜上还放着许多传授知识的和许多有趣的书。可是老字母读本自然很不愿意和那新读本做邻居,所以便从书架上跳了下来,同时还用腕子推了一下那本新的,所以那新的也掉到了...
Passage19词数:261题材:热点话题建议阅读时间:9分钟Beingabletomultitask-doingseveralthingsatthesametime---isconsideredawelcomeskillbymostpeople.Butifweconsiderthesituationoftheyoungpeopleagedfromeighttoeighteen,weshouldthinka___1___.Whatweoftenseenowadaysisthatyoungpeoplejuggleaneverlargernumberofelectronicdevicesastheystudy.W___2___working,theyalsosurftheInternet,sendemails,answerthetelephonea...
Passage22词数:287题材:国家与城市建议阅读时间:9分钟Imagineaworldwithouttelephonesortelevision,withoutcarsorelectricity.Inthisworldthewomenwearlongdresses.Thereisnoindustry.Everyoneworksonfarmsand(1)t____________byhorseoronfoot.ThisistheworldoftheAmish(阿米希)people.TheyliveinPennsylvaniaintheUnitedStates.TheAmisharefarmersandtheybasetheirlifeontheBible.TherewerenotractorsortelephonesintheBibl...
Passage1词数:212题材:环境能源建议阅读时间:7分钟Electricityistheflowofelectricalpowerorcharge.Itisasecondaryenergysourcewhichmeansthatwegetitfromtheconversion(转化)ofothersourcesofenergy,l1coal,naturalgas,oil,nuclearpowerandothernaturalsources,whicharecalledprimarysources.Theenergysourcesweusetomakeelectricitycanberenewable(可再生的)ornon-renewable,butelectricityitselfisneitherrenewablenornon...
Passage16词数:237题材:情绪管理建议阅读时间:9分钟Angerisakindoffeeling.Manythingscanmakeyouangry.Whenyourteachergivesyoutoomuchhomework,whenyourteamlosesanimportantgame,whenyourfriendb__1__yourfavouritethingandthenbreaksit,youmaygetreallyangry.Usually,yourbodywilltellyouwhenyouareangry.Forexample,youbreathemuchf__2__,yourfaceturnsredandyoumaywanttobreaksomethingorhitsomeone,butsometimes,youhi...
Passage1词数:227题材:学校教育建议阅读时间:8分钟Fourteen–year-oldgirlDuBingziwaswalkingtowardsherhome.Suddenly,amanstoppedherandshouted,“Givemeyourmoney!”Du’shandswerecaughtbytheman.Butinonequickmovement,shetookbackherarmsandstartedtoscreamforattention.Themanranawaywithoutgettinganyofhermoney.DuisastudentfromBeijingNo.25MiddleSchool.HerteacherChenHanhasstartedgivinghisstudentsanu__1__less...
Passage1词数:288题材:技能学习建议阅读时间:8分钟Nowstudents’Englishhandwriting(书法)getsworseandworse.Thatmakestheirteachersfeelw__1__.IsyourEnglishhandwritingbeautiful?Ifnot,herearefourstepsthatreallywork!◆UsepaperwithlinesUsingpaperwithlinescankeepyouwritingstraightinsteadofupordownwhenyouwriteEnglishwordsorsentences.Thoselinesonthepapercanhelpyoutowritewordsinther__2__size.Besuretofillth...
Passage1词数:314题材:人物故事建议阅读时间:8分钟IcameintoavillageandIsawapolicemanstandingoutsidethepostofficeandreadingsomethingcarefully.Helookedupatthecar,w__1___intotheroad,andheldupahandtostopme.Ia__2___stopped,butthenIrealizedthatthepolicemanhadbeenreadingaboutme.Isupposedthepoliceatthehotelhadworkedquickly,andcalledallthelocalvillages.Idrovefaster,thepolicemanjumpedoutofmyway,andIwasso...
Passage25词数:373题材:阅读建议阅读时间:12分钟TheNorfolkPrisonColony’slibrarywasintheschoolbuilding.Av____1___ofclasseswastaughttherebyinstructorswhocamefromsuchplacesasHarvardandBostonuniversities.Theweeklydebatesbetweenprisonerteamswerealsoheldintheschoolbuilding.Youwouldbeastonishedtoknowhowhard-workingprisonerdebatersandaudienceswouldgetovers___2_____like“ShouldBabiesBeFedMilk?”A____3_...
Passage28词数:248题材:学校建议阅读时间:7分钟Startedin1636,HarvardUniversityistheoldestofallthemanycollegesanduniversitiesintheUnitedStates.Yale,Princeton,Columbia,wereopenedsoonafterHarvard.TheywereallstartedbeforetheAmericanRevolutionmadethethirteencoloniesintos_____1____.Intheearlyyears,theseschoolsweremuchalike.Onlyyoungmenattendedcollege.Allthestudentsstudiedthesamesubjects,andeveryonele...
26个字母发音规律及英语字母组合发音表a/ei/namecaketable/æ/applecatmapam/α:/wantdance/o/whatwatchb/b/bookbigbagboxc/k/catcakecupclockcar/s/facenicepencilbooksd/d/deskdolldogdade/i:/heshemeetme/e/elephanteggbedpenf/f/finefriendflyfootfang/ɡ/gunglassgladglove/dз/ageorangeh/h/hathehousehandi/ai/finebikefiveice/i/issitmisspigpicturej/dз/jeepjamjacketjark/k/kitecakeblackthankl/l/legleftrulerflagl...
Peter老师正在讲解字母书写的注意事项呢!一起来听听吧!•每个字母都应稍向右倾斜5~10度,斜度要一致。•大写字母都应一样高,占上面两格,但不顶第一线。•小写字母a,c,e,m、n,o,r,s,u,v,w,x,z写在中间一格里,上下抵线,但都不出格。注意区分印刷体和手写体,字母要按一定的笔画顺序书写。•书写单词时,字母与字母之间的间隔要均匀、适当,不要凑得过紧,也不要离得太远。
GreetingClassbegins!上课!Standup!起立!Goodmorning,class!/MrsZhang!Goodafternoon,class!/MrsZhang!Goodevening!晚上好!Goodnight!晚安!Sitdown,please!请坐下!Thankyou.谢谢!Classisover!下课!Goodbye,class!MrsZhang!国际音素表音素48元音20辅音28单元12音双元8音清辅11音浊辅17音前元音[i:][i][e][æ]中元音[ʒ:][ə][ʌ]后元音[ɔ:][ɔ][u:][u][a:][ei][ai][ɔi][iə][eə][uə][əu][au][p][t][k][f][θ][s][ʃ...
26个英语字母注音及分类Aa/eɪ/Bb/bi:/Cc/si:/Dd/di:/Ee/i:/Ff/ef/Gg/dʒi:/Hh/eɪtʃ/Ii/aɪ/Jj/dʒeɪ/Kk/keɪ/Ll/el/Mm/em/Nn/en/Oo/əu/Pp/pi:/Qq/kju:/Rr/ɑ:/Ss/es/Tt/ti:/Uu/ju:/Vv/vi:/Ww/dʌblju:/Xx/eks/Yy/waɪ/Zz/zi:/或/zed/英语26个字母发音归类表注:z有两个发音[ei]AaHhJjKk[i:]BbCcDdEeGgPpTtVvZz[ai]IiYy[əu]Oo[ju:]QqUuWw[e]FfLlMmNnSsXxZz[a:]Rr注:5个元音字母:AaEeIiOoUu/eɪ//i://aɪ//əu//ju:/