Unit 4 Find the hidden letters 找出隐藏的字母,Review,duck dog elephant fish frog girl giraffe,一起学句子吧!,Look! Its a frog! Yes,it is.Welcome! Have fun! I will !,想起来了吗?,A aB bC c,D d,E e,Ff,G g,火眼金睛,字母操,-Whats this letter? -Its letter H.-Can you show me letter H? / Can you act like this?,H h 在单词中的发音是/h/,Horse马,house房子,hen 母鸡,Its the letter H.,H,Look at my house!,H,house,它是字母H,看我的房子,