1、Unit 9 Unit 9 Its one hundred.Its one hundred. 第三课时第三课时 湘少版 四年级上 Free talk. How many boys are there in the classroom? How many girls are there in the classroom? How many teachers are there in the classroom? Lets play. Standing on one foot. 单脚站立! 参加比赛的同学，闭上眼睛，单腿离地。其余 同学边数数one，two，three边给他们鼓劲，脚 最后一个落地
2、的学生为优胜。 Lets look. 2. Do you know the sum? 3. Whats the missing number? 1. What numbers do you hear? Questions before reading: Lets watch. 点击播放Lets Read and Write Lets Read and Write. We know the sum. Its one hundred. There are five numbers here. We know four: fifteen, twenty-three, twenty- six and
3、twenty-seven. What is the missing number? Lets answer. 2. Do you know the sum? 3. Whats the missing number? 1. What numbers do you hear? One hundred, fifteen, twenty-three, twenty-six and twenty-seven. One hundred. Nine. Lets watch. 点击播放Lets Chant Lets read. violin Lets chant. Vicky wears a vest. Vi
4、cky never has a rest. Vicky plays the violin. She plays her best. Lets try. Vicky wears a vest. Vicky never has a rest. Vicky plays the violin. She plays her best. 尝试唱歌谣，注意发音和节奏。 Lets Fun Time. Work in groups of 4. Put a number(10, 20, 30, 40, 50, 60, 70) in each circle. The sum of the three circles
5、 on each line is 100. See which group wins. 10 20 60 50 40 30 70 Lets practice. 一、选出不同类的一项。 ( ) 1. A. ten B. thirty C. fourteen ( ) 2. A. count B. number C. draw ( ) 3. A. is B. and C. are ( ) 4. A. one B. four C. number C B B C 二、连词成句。 1. five/ numbers/ there/ are/ here (.) _ 2. plays/ the/ she/ violin (.) _ There are five numbers here. She plays the violin. 三、选择题。 ( ) 1. My sister can play _ piano. A. a B. / C. the ( ) 2. -_ is one and one? -Two. A. What B. How many C. How C A Summary 1.字母Vv在单词中的发音。 2. 用英语表达数字加法： Thirty and seventy is one hundred. Homework 1.和爸爸妈妈一起唱F部分的儿歌。 2. 默写100以内的数。
