1、lesson 21Unit 4 January is the first month.March is the third month of the year.People can see green trees and green grass everywhere.In China,Tree Planting Day is on 12th.People plant trees on that day.They wan to stop sand on windy days and make the air clean.They want to make the country greener.
2、April is the thirdfourth month of the year.Easter is in March or April.It is always on a sunday.For American students,The Easter holiday are aw long.During Easter,children get colorful Easter eggs.草，不可数名词，无复数具体几号前加介词on.单纯月份前加介词in,具体几号前加介词on.March is the _month of the year.People can see green trees and green grass_.They want to _the sand _windy days and make the air_.They want to make the country_.April is the _month of the year.Easter is _March or April.Its always on a _.Easter holidays are a _long.During Easter,children get colourful _.THANKS
