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Step3PracticeGuideSstorewritethesentencesusingthewordsinbrackets.【设计意图】通过操练巩固已学知识,反馈矫正Task2Step1PresentationPresentsomesentencesandguideSstoobservethesentences.【设计意图】通过观察几组句子,引导学生发现并感知复合句和简单句之间的转换GuideSstochangesomeobjectclausesintosimplesentenceswithprepositionslikeq/andabout.【设计意图】引导学生用一些介词,如f和about等将一些宾语从句改写成简单句,启发学生如何将含有从句的复合句改写成简单句Step2PracticeGuideSstorewriteMilliessentencesusingthewordsinbrackets.【设计意图】在语境中练习,内化语言,为综合输出做准备Task3Step1PresentationPresentsomesentencesandguideSstoobservethesentences.【设计意图】通过让学生观察几组句子,启发学生了解如何将复合句改写成简单句GuideSstochangesomedefiningrelativeclausesintosimplesentenceswithprepositionslikewithandin.【设计意图】引导学生用一些介词,如with和in等将一些定语从句改写成简单句,启发学生如何将含有从句的复合句改写成简单句Step2PracticeGuideSstorewritethedefiningrelativeclausesinsimplesentenceswithinorwith.GuideSstoreplaceeachoftheunderlinedpartswithanotherexpression.【设计意图】通过在语境中操练巩固已学知识,反馈矫正Step3SummarySummarizewhattheyvelearntinthisclass.Step4HomeworkReviewthegrammarlearnedintheclass.PreviewIntegratedskills.【设计意图】帮助学生内化语言和信息,积累语言,并预习下节课内容
四、板书设计Unit4LifeonMarsGrammarUsingadverbialclausesorsimplesentencesUsingobjectclausesorsimplesentencesUsingdefiningrelativeclausesorsimplesentences。