小学英语北京版三年级上册Lesson 21图文ppt课件

这是一份小学英语北京版三年级上册Lesson 21图文ppt课件，共25页。PPT课件主要包含了Lesson 21 ，seventy，eighty，ninety，Lesson 22 等内容，欢迎下载使用。

Listen, lk and learn
Let’s learn…
Wh can guess the missing number?
Wh can guess the missing number? It’s s easy! Tw minus ne is ne.
Wh can guess the missing number? It’s s easy! Three minus ne is tw.
Wh can guess the missing number? It’s s easy! Three minus tw is ne.
Wh can guess the missing number? It’s s easy! Thirty minus twenty is ten.
Wh can guess the missing number? It’s s easy! Thirty minus ten is twenty.
Wh can guess the missing number? It’s s easy! Sixty minus twenty is frty.
Wh can guess the missing number? It’s s easy! Sixty minus thirty is thirty.
Wh can guess the missing number? It’s s easy! Sixty minus frty is twenty.
Wh can guess the missing number? It’s s easy! Sixty minus fifty is ten.
Nw I can understand
1．Shw the picture f the text.There are s many peple in the picture.What can yu see in the picture?Can yu describe it?2．D yu knw them? Wh are they?Can yu guess what they are talking abut?3．Let’s listen and answer :Lk at the picture and say :Lk and say :Make the sentences :
Nw I can say
Nw I knw the sund
1．T leads S t read the wrds: il, cin, jin…2．T lets S t find the sund f “by, ty, jy”3．T leads S t read the sentences.
Nw I can write
Let's chant
1．听录音跟读单词，巩固本课字母的正确发音方法。 2．复习本单元，准备单元测试。