Unit 4 At the farm(part B lets learn )Teaching aims：Knowledge aim：能聽、說、認讀單詞：cow ,sheep ,horse ,hen,并能清楚理解these和those區別。Ability aim：培養學生的英語口語表達能力。Emotion aim：引導學生要保護我們生活中的動物。Teaching key and important aim：掌握三會單詞：cow ,sheep ,horse ,hen 的復數形式，重點知道sheep的單復形式是一樣的。Teaching method：直觀教學法、比較法、討論法、指導法。Teaching procedure：Step one , Warm-up1,Greetings2,lets sing a song together.Step two ,Free talkDo you like animals?Which animals do you like best?Step three,Presentation1,T:My boys and girls ,today we will have four animals come to our classroom, Do you want to meet them? Come on !Lets go!Listen carefully ! Can you guess who is coming?(play the cows voice in PPT )S:Wow! Cow is coming! T:Whats this?(play PPT)S:Its cow.T: what are these?(play PPT about many cows)引導學生用They are來回答。S:They are cows.2,Make a discussion1.(play PPT)Make a summary:單數和復數在提問方式和回答方式上都不一樣。3，T:Ok, lets go on! Next animal is coming , too!(play the sheeps voice)T: Tell me who is coming!S:Sheep is coming!T: Whats this?(play the sheep picture )S: Its sheep.T:what are these? (play many sheep picture )S:They are sheeps.此時，老師應重點強調 sheep很特殊，它的單數和復數都是sheep。S:They are sheep.4，Use the same method to study other words : hen ,horse.5, Make a discussion2.(play PPT)Make a summary: know the difference between these(距離較近的物體) and those(距離較遠的物體).Step four ，PracticeHappy dialogueStep five，Emotion educationStep six，Sum-up Mary has a little lambStep seven , Homework Bl