课件12张PPT。Lesson 12 How many are there ?冀教版（一起）五年级英语下册pencilstampstampsThis is a These are pencilsThese words get bigger with an s at the end of these words .dressbusdishdressesdishesbusesThis is a These are These words get bigger with an es at the end .manwomanchildchildrenwomenmenThis is a These are people一、看图写单词.
1. These are _______.
2. There are five ________.
3. Here are many _______.
4. These are _______.
5. Here are some _______.
6. Here are three ________.
7. These are ________.二．改错：
1．This is one pencils .
2. Look at these woman.
3 . There are five childs .
4. There is many dishes.
5. How much pencils are there?
6. How many book do you have?
7. The students is reading books now. (pencil)(women )(children)(are)(many)(books)(are)三．改写句子：
1．This is a pencil. (复数)
2. Here is a dish . (复数)
3. These are some bedrooms . (单数)
4. Here are two women . (单数) 3. 拓展学习：
学生自己总结还有哪些名词的复数形式是不规则的。fish , sheep , tooth ,foot , fish , sheep , teeth , feet ,
知识延伸：
名词单数变复数的规则：
1．以o结尾的名词，有生命的加es，无生命的加s．但个别有生命的却加s．如：tomatoes , radios , kangaroos .
以辅音＋y结尾的名词，要把y变成i，再加es.如：baby babies . family families .
3. 以元音＋y结尾的名词，要直接加s ．如：boy boys .
以 f 或 fe结尾的，要去掉f或fe ,再加ves .
如：wolf wolves , leaf leaves . goodbye!
