七年级英语Unit8Whenisyourbirthday语法专项突破课件.pptx

语法专项突破,.when引导的特殊疑问句语境领悟Whendoyouliketocome?你想什么时候来?WhendoesLiMinggotoschool?李明什么时候去上学?Whenisyourfathersbirthday?你爸爸的生日是什么时候?自主归纳when意为“”,用来询问时间。when引导的特殊疑问句的结构为:+?,什么时候,When,一般疑问句,学以致用(1)doyouusuallygotoschool?At7:00a.m.A.WhenB.WhatC.WhyD.Where,A,.序数词1.基数词变序数词静观其变基数词序数词onefirsttwosecondthreethirdfourfourthfivefifthsixsixthsevenseventheighteighthnineninthtententh,基数词序数词eleveneleventhtwelvetwelfththirteenthirteenthfourteenfourteenthfifteenfifteenthsixteensixteenthseventeenseventeentheighteeneighteenthnineteennineteenthTwentytwentiethtwenty-onetwenty-firsttwenty-twotwenty-secondtwenty-threetwenty-third,基数词序数词thirtythirtieth,自主归纳观察以上基数词变序数词的规律可知:一、二、三的序数词分别是,。eight变成序数词时,eight后面只加-h,相当于把eight中的去掉,再加-th。nine变成时,要去掉e,再加-th。five的序数词为,twelve的序数词为,都是把ve改为f,再加-th。表示“整十”的基数词以-ty结尾,变为序数词时,把y变为i,再加。表示“整十加个位数”的基数词(十几除外)变序数词时,只把变为序数词即可。,first,second,third,t,序数词,fifth,twelfth,eth,个位数,口诀助记基变序,有规律,词尾加上th,1,2,3特殊记,词尾字母t,d,d。8少t,9去e,f来把ve替,整十变y为ie,后跟th莫迟疑。若想表示几十几,只变个位就可以。,2.序数词的用法语境领悟Thisismyfirsttrip.这是我的第一次旅行。Sheismyfirstteacher.她是我的第一位老师。ThatsMarysfirstbook.那是玛丽的第一本书。自主归纳研读以上例句可知,序数词往往与定冠词连用;如果序数词前有或等修饰时,不需要加冠词。温馨提示序数词有时也可缩写成“阿拉伯数字+序数词的最后两个字母”。如1st(第一),2nd(第二)等。学以致用(2)Parentsareour(one)teachers.,the,形容词性物主代词,名词所有格,first,单项选择1.Whosyourteacher?A.oneB.firstC.thesecondD.two2.thetrainleave?Atthreeoclock.A.WhendoesB.WheredoesC.WhydoD.Howdo3.