Reviewgirl 帽子boy 捶打 hat 女孩hammer 男孩Lets guess.火车火车 ball汽车汽车 doll棒球棒球 train玩偶玩偶 carapplethrees Lets talk!one chairtwo boysfour bagsfive booksHow many.?How many cars?Five cars.How many balls?Three balls.How many dolls?Four dolls.How many trains?One train.How many teddy bears?Two teddy bears.1+3=2+3=4+1=Can you do it?你会做吗?用英文把你和同桌的年龄写下来!