Unit1 How tall are you? Period2,sharp eyes,tall,big,long,heavy,old,short,light,small,young,strong,thin,Free talk,How old are you? Im _ years old. How tall are you? Im _ metres tall,metre 米,How tall are you ,I am 1.60 meters,meter是一个计量单位,意为“米”,在英语中写作meter,其缩写形式为 m。当meter前面的数字大于1时,用复数meters,当meter前面的数字小于1或等于1时,用单数meter,meter,Who is your _ teacher? What is he / she like ,young,younger,The boy is young. The baby is younger. The baby is younger than the boy,old,older,The woman is old.