3) That's right的用法只有一种。
这里的right意思是"正确的；对的"，它主要用于表示对某一事物的肯定，即同意对方的观点或意见。在口语中，可直接用right作答。例如：
-I think she's a teacher. 我想她是一名教师。
-That's right. 对。
单数句变复数句子六要素：
1．主格人称代词要变成相应的复数主格人称代词，即I-we/ you-you /she, he, it - they. 如：
She is a girl. - They are girls.
2． am, is要变为are. 如： I'm a student. -We are students.
3．不定冠词a, an要去掉。如：He is a boy. - They are boys.
4．普通单数名词要变为复数形式。如：It is a cat. - They are cats.
5．指示代词this, that要变为these, those。如：
This is a book. - These are books.
6．man, woman名词作定语修饰可数名词时，要在"数"上与被修饰名词保持一致。但其他名词修饰名词表示"性质"时，不作变化。如：
He is a man doctor. - They are men doctors.
This is an apple tree. - They are apple trees.
教学设计方案
Lesson 21, 22 教学设计方案
( 一课时或两课时 )
教学目标：
1）让学生学会运用：my, your, his, her and its。
2) 数词的学习以及名词的复数形式。
教具：录音机，媒体，数字图片，投影仪。
教学步骤：
Step 1 Revision
1) Revise Is everyone here today? Who is not here?
2) Revise the words: boy, girl, man, woman, mother, father, Mr., Mrs., etc.
Step 2 Presentation
The teacher picks up a boy’s bag and asks: Excuse me, Is this your bag?
The boy answers: Yes, it is.
The teacher says to the class: This is his bag.
Repeat with a girl, saying This is her… Repeat several times with different objects.
Listen to the tape and ask the students to repeat.
Step 3 Practice
Ask a student to pick up an object belonging to the person behind or beside him or her, and ask: Is this your…? and then the other answers: Yes, it is. And ask them to add: Excuse me!
Explain that it is polite to say Excuse me! to get someone’s attention. Get them to repeat several times.
Get them to practise the dialogues using their own names. At last call out some students to act it out.
Step 4 Presentation
The teacher holds up a pen and asks: What is this? The students answer: It’s a bag.
Then the teacher holds two bags and says: What are these?
The students answer: They are bags.
Repeat with a pen / pens, a book / books, a box / boxes, etc.
Get the class to ask and answer both questions—What is this? What are these?
Make sure that they pronounce the plural forms correctly. Add /z/ for bananas, bags pens, /s/ for book and /iz/ for box and bus. Also they should pronounce the ds in birds as one sound /dz/ not /d+z/.
Step 5 Practice
Pair work.
A: What are these? (Holding up two pens)
B: They are pens. They’re two pens. What are these? (Holding up three books)
C: They are books. They’re three books. What’re these? (Holding up four...) etc.
Ask students to look at the picture in the book.
把班级分为男女同学两组，互换角色问答：
What are those？ They are…
Step 6 Consolidation
I．用适当的代词填空
1. Excuse ________! Are _________ Mr. Read?
2. She is an English teacher. _______ name is Ann.
3. This is a cat. _________name is Mimi.
4. Who’s he? I don’t know _________name.
5. —Jim, is this _________ cup? —Oh, yes, it’s ________ cup. Thanks.
II．完成对话：
A: Excuse_________！________this your picture？
B: Yes________.
A: _______very good！
B: ________you.
Step 7 Workbook
1．利用幻灯片总结“找失主”、“找失物”。“感谢及应答”句型。
2．复习所学内容，表演对话。
3．预习下一课，准备教具：一些水果或熟鸡蛋。
On the Blackboard ---- handwriting
Lesson 21, 22
Excuse me! Is this your bag? This is his... a boat ---- boats
Yes, it is. This is her... a hill ---- hills
Here you are. a bus ---- buses
Thank you. a box ---- boxes
教学设计方案Lesson 23
一、教学目的
1．四会单词：their, all, all right, That’s all right.
四会句型：Are these / those/ they English books?
Yes，they are／No，they aren’t．
They’re their books．能交际使用。
2．三会用语：Thank you very much．
3．一会用语：These words have sound．
二、本课重难点
1．掌握四会词语。
2．交际用语的运用。
三、学法引导
1．教师教法：直观教学、实物问答、操练为主。
2．学生学法：通过了解本课的句型后，你如果在教室里拾到某种东西，完全可以用学过的句型问你的同学：Is this your…？Are these your…？
四、教具
录音机、投影仪、实物（水果、书等）。
五、教学过程
Step l Revision
1．Free talk复习21课找失主的情景，使用Is this your…？
2．复习What’s this？What are these？
Action chain形式，一排中的学生依次问后一名同学。
A：What are these?
，Is this your pencil-box