选修六unit4 global warming period 3

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1、Period3　Grammar—theUseof“It”(2)教学内容分析　　　Thisteachingperiodmainlydealswiththegrammar：theuseof“it”．“It”hasmanyusagesintheEnglishlanguage.“It”canbeusedasapronounandtheformofsubjectandobject，andbeusedtoexpressemphasis.FromUnit3weknowthat“it”canbeusedasapronounandt

2、heformofsubjectandobject.Inthisunitwewilllearnthat“it”canbeusedtoexpressemphasis.Thiskindofsentenceiscalledemphasizedsentences.Itsmainformis“Itis/was...that/who...”，whichisaveryusefulsentencepattern.三维目标设计　　　Knowledgeandskills1．Togetthestudentstoknowthestructu

3、reoftheemphasizedsentences.2．Toletthestudentslearntheusagesoftheemphasizedsentences.3．Toenablethestudentstousetheemphasizedsentencescorrectlyandproperly.Processandmethods1．Toaskthestudentstoreadthereadingpassageagain，pickouttheemphasizedsentencesfromthereading

4、passageandtranslatethemintoChinese.2．Toaskthestudentstodiscoverthestructureandusagesoftheemphasizedsentencesbycomparingalotofexamplesentences.3．ToaskthestudentstodotheexercisesinDiscoveringusefulstructuresonPage29tomastertheemphasizedsentences.4．Toaskthestuden

5、tstosummarizetheusagesoftheemphasizedsentences.5．ToaskthestudentstodotheexercisesinUsingStructuresonPage64andsomeotheradditionalexercisesforconsolidation.Emotion，attitudeandvalue1．Togetthestudentstobecomeinterestedingrammarlearning.2．Todevelopthestudents'abili

6、tyofcomparingandsummarizing.教学重、难点　　　1．Togetthestudentstomasterthestructureandusagesoftheemphasizedsentences.2．Toenablethestudentstolearnhowtousetheemphasizedsentences.Step1　Revision1．Checkthehomeworkexercises.2．Dictatesomenewwordsandexpressions.Step2　Warmin

7、gupAskthestudentstocomparethetwosentencesbelow.Thesecondsentenceisfromthereadingpassage.TranslatethemintoChineseandthendiscussanydifferenceinmeaningandform.Askthestudentstoexplainwhy“it”isusedinthesecondsentence.Humanactivityhascausedthisglobalwarming.It_ishum

8、anactivity_thathascausedthisglobalwarming.Tellthestudentstherearetwomoresentencesinthetextinwhich“it”isusedforemphasis.Findthemandthenwritethemdown.________________________________