Unit 4 Lesson 23 At the Zoo Lead-inLead-inLead-inDo you like to go to the zoo?Study Aims1.words and phrases: zoo, tiger, elephant, monkey,2.key sentences: 1.This is a zoo. 2.I see a… 3.It’s big/small. tigerelephantmonkeyn. 老虎n. 大象n. 猴子New WordsI see a monkey.It is small.I see two elephant.They are big.I see a tiger.It is big.Homework你最喜欢哪种动物?请查找相关资料。 Thank you!