第四课时Section B (1a1e) 类别课时要点重点单词1.ten (num.) 十2.eleven (num.) 十一3.twelve (num.) 十二4.thirteen (num.) 十三 5.fifteen (num.) 十五 6.eighteen (num.) 十八7.twenty (num.) 二十 8.thirty(num.) 三十重点句式How much is the white bag？这个白色的包多少钱？Its seventeen dollars.它是十七美元。 自主学习案新词自查根据句意和提示完成句子。1There are twelve(十二) months in a year.2My little sister is ten(十) years old.3Nine and four is thirteen4This pair of shoes is fifteen (十五) dollars.5The black shorts are thirty(三十) yuan.6There are eighteen(十八) girls in our class.课堂导学案 Step 1准备与热身(Preparation) T：Numbers are known to us all.We can see them everywhere.Weve learned ten numbers from zero to nine.There are countless numbers.So we will ask how we can memorize them one by one.There are some rules in the numbers.Now lets learn them.First discuss some questions：1Whats 110 in English?2Can we say “11” as “ten one” in English?3How do you spell 12，13，14 in English?Step 2呈现与输入 (Presentation)1Play the recording for the students to listen.T：You are going to hear some numbers.Listen and tell what the numbers are.(Play the tape.)S：The numbers are from “ten” to “thirtyone”T：Ill play the recording once again.This time you can follow the tape to read out the numbers.(Play the tape once more.)(The students read after the tape.)2Show some number cards and let the students read the cards with the English numbers on them.3Play the number cards in pairs.T：Mix your own number cards and ask your partner to put them in the right order.(The students mix up their own number cards.Their partners should put the cards in the right order.)Step 3练习与体验 (Practice) Read the following words and write the numbers next to them.The words and numbers say the same thing.1Listen and circle.T：Kate is shopping with her mother in the shopping mall.Listen to their conversation.Circle the numbers you hear.(Play the tape and the students circle the numbers they hear.)2Listen to the conversation again.What things are Kate and her mother talking about？Please circle them.And try to find out what things they are going to buy.Check the answers.(1d)(Play the tape and the students circle the things Kate and her mother are talking about and check the things Kate buys.)(The students listen to the tape once more，then circle and check.)T：Lets check your answers.What things are Kate and her mother talking about?S：They are talking aboutT：Good，youre right.What things are they going to buy?S：They are going to buyS：They are talking aboutStep 4运用与生成 (Production) Ask and answer about the things in the picture.T：Look at the blue sweater.How much is it?S：Itsdollars.T：And how much are the blue shirts?S：They aredollars.T：What about the white Tshirt？How much is it?S：Itsdollars.T：How much are the red socks?S：They aredollars.T：How much is the green sweater?S：Itsdollars.Step 5巩固与提高(Progress)【探究点】基数词的用法表示数量的词叫基数词。one到twelve，拼写和读音没有什么相似之处，无规律可言，应逐个进行记忆。thirteen 到nineteen，表示“十几”，在个位数后加teen。twenty到ninety，表示“几十”，均是以ty结尾。2129直到9199，表示“几十几”，用整十位数加个位数表示，中间用连字符“”把十位数和个位数连接起来。one hundred意为“一百”，表示一百还可以用a hundred.要表示200900的整百位数，用“具体数字hundred”。【针对训练】基数词填空。four(4)fourteen(14)forty(40)five(5)fifteen(15)fifty(50)eight(8)eighteen(18)eighty(80)twelve(12)twenty(20)Step 6家庭作业(Homework)1Remember the words in 1b.2Make a similar conversation like 1e with your partner.3Preview the next period. 4完成学生用书本课时练习。