2021_2022学年高中英语Module5ALessoninaLabSectionⅠReadingIntroduction&ReadingandVocabulary学案外研版必修1.doc

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1、高考Module5ALessoninaLab有两种变化：化学变化和物理变化，那么你知道化学变化和物理变化的区别吗？ChemicalChangeandPhysicalChangeTherearetwokindsofchange－chemicalchangeandphysicalchange.Inachemicalchange,thereisalwaysanewsubstanceformed.Breakingupwaterintohydrogenandoxygenisachemicalchange.Ineachofthechemicalcha

2、ngeatleastonenewsubstanceisformed.Achangeisnotachemicalchangeifitdoesn'tformanewsubstance.Physicalchangesareverymon,too.Therearemanyexamples.Youcanmakeaphysicalchangebytearingapieceofpaperintotwo,orbycuttingapieceofironwithalathe.Herethepaperisstillpaper,andtheironisstill

3、iron.Anotherwayofmakingphysicalchangeisdissolvingsomethinginwater.Whenyoudissolvesaltinwater,thesaltdisappears.Youmaythinkthatanewsubstancehasbeenformed.Butinfactthereisnonewsubstance.Thesaltisstillsalt.Youcanstilltasteit.Sothedissolvingofanythingisaphysicalchange.-10-/10

4、高考Whenwaterfreezes,thechangeisalsoaphysicalone.Thewaterchangesfromliquidtosolid.Butitisstillthesamesubstance.Thatiswhythefreezingofanythingisaphysicalchange.Andpeopleoftentellthedifferencesbetweenachemicalchangeandaphysicalchangethroughsomeexperiments.Weshouldtrytoexplore

5、themagicalscienceworldbydoingexperimentsbyourselves.[阅读障碍词]1．hydrogenn．氢气2．tearv．撕扯3．lathen．车床4．freezev．结冰；冷冻5．magicaladj.魔力的[诱思导读]根据短文内容，判断正误(T/F)1．Inachemicalchange,thereisalwaysanewsubstanceformed.(T)2．Breakingupwaterintohydrogenandoxygenisaphysicalchange.(F)3．Watercha

6、ngingfromliquidtosolidisachemicalchange.(F)Ⅰ.匹配下列单词的词性及汉语意思(　　)1.expand　　A．n.电(　　)2.mixtureB．n.结论(　　)3.electricityC．n.混合物(　　)4.conclusionD．n.目标；目的-10-/10高考(　　)5.aimE．n.设备；装备(　　)6.reactF．vi.形成(　　)7.equipmentG．vi.漂浮(　　)8.ordinaryH．vi.(化学)反应(　　)9.floatI．vi.膨胀(　　)10.formJ．adj

7、.普通的；平常的[答案]　1－5　ICABD　6－10　HEJGFⅡ.选择下列句中词组的汉语意思A．想出；考虑　B．将……按顺序排列　C．弄清楚，查明D．在底端　E．往……加入……　F．把……关在外面1．Doyouwanttoaddyournametothelist？________2．Shelikestoputeverythinginorderindailylife.________3．Closethedoorandkeepthecoldairoutoftheroom.________4．Canyouthinkofanyotherway

8、toworkouttheproblem？________5．Theanswerisatthebottomofthepage.Haveyoufoundit？________6．Theteache