第2节熔化和凝固义务教育教科书（RJ）八年级物理上册1各种状态下的物质2各种状态下的物质3固态液态气态固态液态气态1．物质有三态：固态、液态、气态。1．物质有三态：固态、液态、气态。2．物质从一种状态变成另一种状态叫做物态变化一、物质的三种状态及变化4熔化熔化凝固凝固固态液态气态固态液态气态熔化和凝固现象3．熔化和凝固5河水结冰火山熔岩浇铸熔化与凝固现象6（1）实验装置：二、探究固体熔化时温度变化的规律（1）...
义务教育教科书（人教版）八年级数学上册12345678910111213141516勤奋的人是时间的主人,懒惰的人是时间的奴隶勤奋的人是时间的主人,懒惰的人是时间的奴隶17
WemustsayMrandMrswhenyouspeaktoolderpeople.Youcanusefirstnameswithyourfriends.Youmustn’ttalktooloudly.Insometrainsyoucan’tevenuseyourmobilephone.1Listentoateenagertalkingaboutlife.Checkthethingshemustdo.164325872mustmustn’t1.cleanupbedroom2.washup3.stayoutafter9:00p.m.4.smoke5.dohomework6.washhands7.usethetelephonewithoutasking8.playmusicloudlyafter10:00p.m.√√√√√√√√3Listenagain.Whatt...
12Unit2Stayawayfromwindowsandheavyfurniture.1must,can,may表示“推测”顺口溜：can不肯,may不问,must肯定不否问。can不肯,即：can(could)一般不用于肯定句；may不问,即：may(might)一般不用于疑问句；must肯定不否问,即：must一般仅用于肯定句,不用于否定句和疑问句。21、表示有把握的推测时,肯定句用must(一定,准是),否定句用can’t(不可能,一定不)。must(can’t)+动词原形,表示对现在情况的推测。must(can’t)+bedoing,表...
Unit5Lesson15MyFavouriteTeacher1Whoareyourfavouriteteachers?Whataretheylike?Whyaretheyyourfavoutiteteachers?Brainstorm2Readthefoursentencesandpredictwhattheinterviewisabout.Itmaybeabouthisteacherandhim.Bre-reading3Heoftenforgottodohishomeworkanddidn’tdowellintests.1.HowdidChenChengdoinhisjuniorhighschoolatfirst?SheaskedChenChengtogotoheroffice.2.WhatdidMrsTangdolikeotherteachers?ReadingReadthe...
义务教育教科书（北师版）八年级数学上册12345678910111213141516171819对于事实问题的健全的判断是一切德行的真正基础。对于事实问题的健全的判断是一切德行的真正基础。20
用天平和量筒测密度1【出示目标】1.深入理解密度的概念,认识量筒,会使用量筒测物体体积2.通过探究活动学会测量液体和固体的密度2学习指导1.量筒的使用2.测量液体和固体的密度3【学习指导一】量筒的使用GO4自主预习•预习课本第117页内容,完成下列问题•1.叫物质的密度,密度的计算公式是ρ=。•2.规则形状物体,如：长方体金属块体积可以用测量。不规则形状物体,如：牛奶,小石块的体积可以用测量。•3.量筒的容积单位一般是,也有...
1Unit1LetstrytospeakEnglishasmuchaspossible.11.DoyouenjoylearningEnglish?2.WhydoyoulearnEnglish?3.DoyouthinkEnglishisuseful?4.HowtolearnEnglishwell?AskandanswerFreetalk2learningEnglishgrammarlisteningSpeakingreadingwritingvocabularyWhichdoyouthinkisdifficultforyouaboutlearningEnglish?3answeraskchecklistenlookreadsaytranslatewrite回答检查问翻译听阅读写看说MatchthewordswiththeChinese41.Grasptheke...
ReadingI1Revision汉译英最好做某事坚持工作休息想要继续把我叫醒在你回来的路上计划环游中国一个可以去的很棒的地方hadbetterdosth.keepworkinghave/takearestwanttogoonwakemeuponyourwaybackplantotravelaroundChinaawonderfulplacetogo2Revision汉译英谢谢你的建议。爬这么多台阶真的很累。Thanksforyoursuggestions.Itsreallytiringtoclimbsomanysteps.3emperor皇帝IfIweretheemperor,Imustlettheordinarypeoplealloverthe...
1一.Fillintheblanks.1.Thedeskisbroken.Canyouhelpme______（修理）it,please?2.Weshouldreadthe______________(指示)carefullybeforeweusethemachine.3._________(自己动手做)ispopularamongyoungpeopleinChinanow.4.–Whatdoweneedtocutthepieceofpaper?--Apairof__________(剪刀).5.Youlook_______(love)onthepinkdress.repairinstructionsDIYscissorslovely26.Therearemanykindsof_______(tool)intheshop.7.Ricklooks_____...
理教材基础化必修二Module1OurBodyandHealthyHabits析考向精准化研精题集约化究方法状元说事1Day1billion[ˈbIljən]num.十亿biology[baIˈɒlədʒI]n.生物学bird[bɜːd]n.鸟birth[bɜːθ]n.出生，分娩；出现，诞生；出身birthday[ˈbɜːθdeI]n.生日birthplace[ˈbɜːθpleIs]n.出生地；发源地2bit[bIt]pron.[a～]一点儿，一些ad.[a～]有点儿，稍微n．一小块，一小片bite[baIt](bit，bitten)v.咬；叮bitter[ˈbItə]a.苦...
义务教育教科书（教科版）八年级物理上册1234567891011121314151617信心是半个生命,淡漠是半个死亡。18
Unit3Lesson7SummerHoliday1Howdoyouwanttospendyoursummerholiday?gotoasummercampvisitfriendsBrainstorm2LearnEnglishBrainstormHowdoyouwanttospendyoursummerholiday?3readlotsofbooksStudyabroadBrainstormHowdoyouwanttospendyoursummerholiday?4goonatourBrainstormHowdoyouwanttospendyoursummerholiday?5Ifyougoonatour,wheredoyouwanttogo?theGreatWallWarm-up6IwanttogotothePalaceMuseumtheBirdsNes...
义务教育教科书（沪科版）八年级物理上册123456789101112131415161718天才是百分之一的灵感加百分之九十九的汗水。19
