1、,名词复数和 指示代词,words,these 这些 those 那些new old small big,glass cup,dish,spoon,knife,fork,watch,box,bus,leaf,potato,tomato,piano,lady,Do you know?,单数名词怎样变为复数名词?,an apple,apples,1,普通名词变复数,2, 以 s, x, ch, sh 结尾的名词,3, 以f, fe结尾,4, 以辅音字母加y结尾,5, 以o结尾,Attention!,黑人,英雄 爱吃土豆和西红柿,5 minutes!,Memorize and Practice!,指
2、示代词单数,this,that,these,those,指示代词的 复数形式,Attention!,注:用法1和用法2 中的指示代词these和those都可以用人称代词they来替换!,e.g. These are sweet apples.They are sweet apples.Those glasses are big.They are big.,人称代词与指示代词的替换,these _these glasses _those dishes _the man _this knife _that lady _,theytheytheyheit she,含有this,that的to be句型的否定,This is Peter.,not,含有these,those的to be句型的否定,例句:These are old.,not,改一般疑问句,例句:These are old.,Are these old?,人称代词与指示代词的替换,Are these old?,-Yes, they are. -No, they arent.,Think and Say,