1主题:Sentences句法--否定句II.Howtouse用法:肯定句变否定句第一类:含有is,am,are的句子,直接在is,am,are后面加not,主语+be(amisare)+not(Iamnot=I’mnotisnot=isn’tarenot=aren’t)例如:IamJack.----IamnotJack.—I’mnotJack.Sheisadoctor.----Sheisnotadoctor.Itisasunnyday.----Itisnotasunnyday.连接:课堂练习一讲解第二类:含can的情态动词的句子,在can后面直接加not,cannot=can’t。例如:Thebirdcanfly.---Thebirdcannotfly.Icandance____Icannotdance连接:课堂练习二讲解第三类:含实意动词的句子变否定句,在do或does后面加not主语+do(does)not+动词原形例如:Igetupat7:00everymorning.----Idon’tgetupat7:00everymorning.Grandmaoftengoestotheparkinthemorning.----Grandmadoesn’toftengototheparkinthemorning.22.完成作业单上语法练习。课堂练习一:将下列句子变成否定句。1.IamLily.____________________________________2.It’sacat.____________________________________3.Youarehere.___________________________________4.Youareanurse._________________________________5.Sheishappy.____________________________________6.It’sherbird.____________________________________7.Thisisyourcap.__________________________________8.That’shiscap.___________________________________9.MynameisTom._________________________10.Iamateacher_____________________课堂练习二:将下列句子变成否定句。1.Icanplaythepiano.____________________________________2.Shecanwalktoschool.____________________________________3.Jennycansing._______________________________4.Jackcanplayfootball.____________________________________5.Thebirdcanfly.__________________________6.Grandpacanrunveryfast.___________________________________7.Mysistercanswim._________________________3家庭作业一.将下列陈述句变成否定句。1,Iamastudent.____________________________________2.It’sacat.____________________________________3.Ihaveadog.____________________________________4.Youarehere.___________________________________5.Youareateacher._________________________________6.Mybookisgreen.____________________________________7.It’sherbird.____________________________________8.Thisisyourcap.__________________________________9.That’shiscap.___________________________________10.Ihavetwopencilboxes.______________________________二:将下列单词归类MotherpencilgreencatparentsdressPandablackbookT-shirtrulertiger1,family:____________________________________2,schoolthings:(学习用品)_______________________________3,clothes:____________________________4,animal(动物):__________________________________5,color:_____________________________________4