课题：Unit 2 This is my sister. Section B(1a-1d)
主备人：高丽 课时：3
学习目标：
Key words: son; daughter; cousin; mom; dad; aunt; uncle; grandpa; grandma；family tree;
重要句型：含有be动词的单数句变复数句 三、可数名词单数变复数的规则。
【自主探究】一、根据句意及汉语提示完成句子。
1. Tony is the (儿子) of the family. 2. Lucy is his (女儿).
3. My (表弟) is my aunt’s son. 4. Mr. Green is her (舅舅).
5. That’s my (爷爷). 6. Please say thanks to my (妈妈).
7. My father’s mother is my . 8. My parents’ daughter is my .
9. Jim and Lily are my uncle’s children. They are my .
10. I am a boy. I’m my parents’ .
二、用am, is are填空。
1. –What those? --They are pictures.
2. that your uncle? 3. I Betty. you Bob?
4. Mary my aunt. 5. Gina and Paul my cousins.
三、通过预习你的疑问是
【合作探究】
一、含有be动词的单数句变复数句，需注意以下几点：
1.指示代词this或that分别变为 或 。
2.am或is要变为 。 3.不定冠词a或an要 .
4.可数名词单数要变为 。
5.提示：如果主语是人称代词时，他们也必须变为复数形式
I--- you--- she/he/it---
6.将下列的单数句变为复数句。
1) That book is new.
2) I am a boy.
3) She is a girl.
4) How is he?
5) Is the dictionary on the desk?
二、可数名词单数变复数的规则：
1.一般情况下，直接加s：picture-- sister-- parent--
2. 以辅音字母加y结尾的名词，y变i再加es: family-- dictionary--
以元音字母加y结尾的名词，直接加s: day-- boy--
3.以s; x.; ch; sh结尾的名词加es: bus-- box-- watch-- brush--
4.以f或fe结尾的名词：
⑴f或fe变v加es wife（妻子）-- knife（小刀）--
wolf（狼） -- thief（小偷） -- shelf（书架）--
self（自己） -- half（半）-- leaf（树叶）--
“小口决：妻子持刀去宰狼，吓得小偷发了慌，躲在架下保己命，半片树叶遮日光。”：
⑵加s的有：giraffe-- roof(屋顶)--
⑶特殊变化：scarf(围巾)-- 或
5.以o结尾的名词：
⑴有生命的名词结尾加es(黑人英雄爱吃西红柿和土豆)：
Negro-- hero-- tomato-- potato--
⑵无生命的名词结尾加s：photo-- piano-- radio--
⑶特殊变化：zero-- 或
6.不规则变化：
⑴男人、女人a变e：man-- woman--
⑵鹅、足、齿oo变ee：goose-- foot-- tooth--
⑶老鼠、虱子ouse变ice：mouse-- louse--
⑷儿童要加人：child--
⑸单复数同形（中国人的鹿，日本人的鲜）：Chinese-- deer--
Japanese-- fish-- sheep--
7. 用所给的单词的复数的正确形式填空：
1>There are so many________ (wolf) in the forest.
2>There are three ______ (chair) in the classroom.
3> These _______ (tomato) are red. 4>______ (hero) are great.
5>My aunt has two ______ (baby) 6>There are some ______(deer) eating the grass.
7> My father likes to eat _______ (potato). 8> ______(Chinese)like to eat noodles.
9>I have many ______ (toy) in my bedroom.
10>I help my mother wash ______(dish) in the kitchen.
11>I have two ______ (pencil-box). 12>There are some ______ (bus) in the street.
13>Peter has eight _____ (foot). 14>Linda has three _______ (tooth).
15>There are some ______ (child) in the garden.
16>Michael likes the ______ (mouse). 17>There are some ______ (goose) in the river.
18>My uncle and father are _____(man).
19>Tom and King are _____ (boy). 20>Linda has three ______ (tooth).