新概念青少版1B-Lesson-33

Unit17Smile,please!WhoaretheyandWhataretheydoing?WhereareLucyandFlora?CanVikkebalanceontheball?IsVikkeontheball?CanLucydomaths?CanVikkedomaths?Whataretheydoing?WhocantakeaphotoofLucyandFlora？CanFlorabalanceonaball?Whocantryandbalanceonaballaswell?IsFloraonherknees?•onone'sknees:•one'smy/your/her/his/its/their•Idoyousay/Isayyoudo!•e.g.Heisonhisknees.Whoarebothgoodatgymnastics,butwhoisusless?begoodat:Iamgoodat...She/He/Itisgoodat...They/We/Youaregoodat...e.g.Heisgoodatmaths.beuselessat...e.g.Sheisuselessatmusic.CanVikketakeaphotoforthem?Icanonthisball.IcanIcanbalanceonaballI'monmyYou'rebothgoodatgymnastics,butI'mforus,Vikke.balancetrykneesuselessTakeaphotosmilebalancetryaswalleasygoodatgymnasticsuselesstakeaphotoonone’skneesIbalanceonthisball.ItryIbalanceonaballyoubalancelikeus?YoudoMathsandMusic.Youtakeaphotoofus.cancancancancancanIbalanceonthisball.ItryIbalanceonaballyoubalancelikeus?YoudoMathsandMusic.Youtakeaphotoofus.cancancancancancanGrammar:can是情态动词，表示“能”，表示某人的能力，其后加动词原形。肯定句：主语（I/We/You/He/She/It/They)+can+动词原形.e.g.Icanrun.否定句：主语(I/We/You/He/She/It/They)+can't+动词原形.他不能游泳。我们不能爬山。这只大象不能行走了。他们能做完作业。我能荡秋千。Hecansingasong.Shecanswingwell.Icantakeaphoto.Theycandogymnastics.cannot一般疑问句：Can+主语(you/he/she/it/they)+动词原形?e.g.Cantheyswim?“一提”“二变”“三问号”1.Floracanbalanceonaball.2.Lucycan'tbalanceonaball.3.It'sfun.4.FloraandVikkearebothgoodatgymnastics.5.Lucyisuselessatmaths.6.Vikkecantakeaphotoofthem.1.IsFloraonherknees?2.CanLucybalanceonaballaswell?3.IsiteasyforVikke?4.IsVikkeuselessatgymnastics?5.CanLucydomaths?6.CanVikketakeaphotoofLucyandFlora?7.CanVikkebalanceonaball?Recitebyyourgroups