新人教版英语七年级下册Unit5_语法专项ppt课件(why的用法)

,初中英语人教版七年级下册,初中英语人教版八年级下册,初中英语外研版七年级下册,初中英语外研版八年级下册,初中英语仁爱版七年级下册,初中英语人教版七年级下册,初中英语人教版七年级下册,语法透析,考点大观,易错辨析,通关训练,考点大观,易错辨析,通关训练,*,*,考点大观,易错辨析,通关训练,*,*,考点大观,易错辨析,通关训练,解析,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,Unit5,语法专项课件,（,why,的用法）,初中英语人教版七年级下册,Unit5 初中英语人教版七年级下册,新人教版英语七年级下册Unit5_语法专项ppt课件(why的用法),why,的用法,1,why,是疑问副词，意思是“为什么”，用来询问,原因、理由,，一般由“,Why+,一般疑问句”构成特殊疑问句。,why的用法1why是疑问副词，意思是“为什么”，用来询问原,3,why,的用法,1,Why,does he like this subject?,Why,is she here?,why的用法1Why does he like this s,4,why,的用法,2,why,引导的特殊疑问句，一般由,because,引导的状语从句来作答,。,because,是连词，意为“因为”，其后要接一个句子来陈述,原因、理由,。,why的用法2why引导的特殊疑问句，一般由because引,5,why,的用法,2,Why,dont you like English?,Because,its difficult.,Why,do they want to go to China?,Because,they want to learn Chinese.,why的用法2Why dont you like Eng,6,why,的用法,3,Why not do sth,？,=Why dont/didnt you do sth?,意为“为什么不做某事？”，用于提出,建议、征询意见,。根据具体场景来答复对方。,why的用法3Why not do sth？=Why don,7,why,的用法,3,Why dont you go,to the zoo with us?,Sounds great./Good idea.,why的用法3Why dont you go to th,8,why,的用法,4,why,相当于“,whatfor,”，回答时用,because,后接表示原因的,句子,，,because of,后接,名词、代词或词组,。,why的用法4why相当于“whatfor”，回答时用be,9,why,的用法,4,What,do you open the window,for,?,=,Why,do you open the window?,Because,we need more fresh air.,why的用法4What do you open the w,10,易错点,1,Why,are you late again?,Because,there is something wrong with my bike.,because,常回答,why,引导的疑问句；,as,，,since,语气较弱，不回答,why,引导的问句,。,易错点1Why are you late again?be,11,易错点,2,because,和,because of,有区别。,because,后面要跟,从句,，而,because of,后面跟,名词、代词或短语,。,He is late for school,because it rains heavily.,He is late for school,because of the heavy rain,.,易错点2because和because of有区别。beca,12,【,典例,1】_ does your cousin usually go to work on foot?,He says its good for his health.,A.Where B.When C.Why D.How,考查疑问词。句意：,为什么你堂弟经常步行上班？,他说，那对他身体好。答句表示的是原因，故应选用,why,来提问。,【典例1】_ does your cousin,13,【,典例,2】Why not _ to the park now?,Good idea!Lets go.,A.go B.to go,C.goes D.going,考查,why,的用法。句意：为什么现在不去公园呢？好主意，我们走。,why not,表建议，后跟省,to,动词不定式，选,A,。,【典例2】Why not _ to the pa,14,【,典例,3】Why not go to Lao She Teahouse tonight?,_.,A.It doesnt matter B.Thank you,C.Sorry to hear that D.Sounds great,考查疑问句及回答。句意：,为什么今晚不去老舍茶馆呢？,听起来不错呀。表建议的回答，根据实际情况来，选,D,。,【典例3】Why not go to Lao She Te,15,