Unit3.This is my sister.
句型：1,Is this your sister?No,it isn’t.
Is she your sister?No,she isn’t.
2,This is my friend.
These are my friends.
That is my brother.
Those are my brothers.
3,Thanks for the photo of your family.Here is my family photo.
photo of your family = your family photo
語法：可數(shù)名詞單數(shù)變復(fù)數(shù)：一般情況下加s,book-books,以s,x,sh,ch結(jié)尾的加es
watch-watches 以輔音字母加y結(jié)尾的,把y改為i再加es boy- boys,family-families 以o結(jié)尾的有生命的加es,無生命的加s,tomato-tomatoes,photo-photos
Unit3 This is my sister.
　　一、短語
　　1.thanks for (sth/doing sth)
　　2.pen friend/pal
　　3.family photo
　　4.take a photo
　　二、句型/語法點(diǎn)
　　1.Is he your friend?
　　2.This/That is my sister.
　　These/Those are my brothers.