九年级英语unit13,Section A Grammar Focus-4c课件.ppt

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1、Unit13SectionAGrammarFocus—4cⅠ．短语温顾1.河床底部______________________2.充满了垃圾_____________________3.产生影响________________________4.听说_____________________5.到目前为止________________________6.对……有害_____________________7.……的数量__________________________8.给……带来危险__________________9.不但……而且…

2、______________________10.砍掉；割掉_____________________【课前准备】thebottomoftheriverbeharmfultohearofbefullofrubishthenumberofbringdangertonotonly…butalsocutoffsofarmakeadifferenceⅡ．短语知新1.参加______________________2.代替______________________3.采取行动_____________________4.关掉_____________

3、__________5.付费__________________________6.累加______________________7.使用公共交通_______________________8.负担不起做某事____________________【课前准备】can’taffordtodosth.takepartininsteadoftakeactionturnoffpayforaddupusepublictransportation1.TheshoesaresoexpensivethatIcan’t____________(买得起）th

4、em.2.Weshoulduse____________(可重复使用的）chopstickswhenweeatoutside.3.Whatdoyouthinkofthe____________(交通）inChina?4.TheSpringFestivalis____________(认为是）themostimportantfestivalinChina.5.Wecansave____________(电）byturningoffthelightswhenweleavearoom.自学自查：根据汉语提示完成单词。affordreusabletr

5、ansportationconsideredelectricity典型例句所用语法MakeupnewsentencesWearetryingtosavetheearth.Theriverusedtobesoclean.Theairisbadlypolluted.Noscientificstudieshaveshownthatsharkfinsaregoodforhealth.Weshouldhelpsavethesharks.现在进行时am/is/are＋doing语法总结读GrammarFocus表格内的句子，理解每个句子所用的时态、语态、

6、情态动词及usedto结构。Discussinpairs/groups.usedto＋do一般现在时被动语态：am/is/are＋done现在完成时：has/have＋done情态动词＋doHaveyouevertakepartinanenvironmentproject?Whatshouldyoudotosavetheenvironment?①turnoffthelightswhen…②usethepaperbags..③walktoschool……Wecan________________________________.Lead–in4

7、a.4aFillintheblankswiththecorrectformsoftheverbsinbrackets.Joe:_____youever______(take)partinanenvironmentalproject?Eric:Yes,Ihave.I______(help)withaClean-UpDaylastyear.Itwas__________(consider)thebiggestclean-upprojectthiscity____ever____(have).Havetakenhelpedconsideredhad

8、had参加Joe:Howmanypeople____(take)part?Eric:I_____(think)morethan1,000people______(c