saving the earth（the first period）

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1、Savingtheearth（TheFirstPeriod）Unit9Savingtheearth　　1．BriefStatementsBased0ntheUnit　　Inthisunit，Sswilldosomelisteningspeaking，readingandwritingpractice．Also,theywilllearntousetheInversion．Inthefirstperiod，Sswi1limprovetheirspeakingabilitybytalkingaboutnatureecologyandtheenvironmentandtheyw

2、illlistentosomelisteningmaterialaboutourenvironment．Afterthestudyofthisperiod，theywillimprovetheirspeakingandlisteningabilitiesandalsoknowsomethingabouttheproblemsfacingtheearth．Inthesecondperiod，SswillreadapassageabouttheEarthSummit．FromthepassageSswillknowmoreabouttheimportanceofprotect

3、ingourearth．Inthethirdperiod．Sswillstudythegrammaritem：Inversion．Afterdoingsomeexercisesprovidedinthisperiod．andwiththehelpoftheteacher，SswillknowhowtousetheInversion．TeachermayprovidemoreexercisesforSstoconsolidateifnecessary．Inthelastperiod，SswilllistentotwospeechesfromtheEarthSummitand

4、finishthepracticeprovidedinthefirstpart．SswillknowmoreabouttheEarthSummitandimprovetheirlisteningability．Inthewritingpart,Sswillimprovetheirwritingabilitybywritinganevaluationparagraphwiththehelpofsomegivenexpressions．Afterthestudyofthisunit．Sswillknowhowtosupportanopinion，andtheywillknow

5、moreaboutenvironmentprotection．Theywillknowthatifallofusmakesmallchanges．wecouldmakeabigdifference．Theywilldomoretoprotectourearth．　　II．TeachingGoals　　1．Talkaboutnatureecologyandthe、environment．　　2．Practisesupportinganopinion．　　3．Learntouseinversion．　　4．Writeanevaluationparagraph．　　III．Te

6、achingtime：Fiveperiods　　IV．BackgroundInformation　　1．ProtectTheOzoneLayer　　Inthemiddleofwinter，whensnowisfallinginmanypartsoftheUnitedStates,　　scientistshavesoundedawarningtopeoplewhoplantospendmanyhoursinthesunthissummer．Thewarning：Thesun’ssummer-timeraysaremoredangerousthanonce　　thought．

7、　　Ateamofscientistsfrom80nationsrecentlyreportedtotheUnitedNationsthatalayerofozoneintheatmosphere,whichprotectshumansfromharmfullevelsofultravioletradiation，willbethinnerovertheUnitedStatesthissummer．Thethinner1ayerallowsmoreultravioletraysfromthesuntoreachtheearth