2. Homework:

(1)总结：在学过的物品名词中，哪些前面用a，哪些前面用an。

(2)依照1a，自编两则对话，写在作业本上。

板书设计：

1. (拿实物或图片：鸡蛋、橘子和汽车模型等，进行师生问答练习。)

T:　 What’s this in English?

Ss: It’s a pen/ruler/book/car/blackboard/desk.或It’s an egg/orange.

(待学生熟悉了物品后，叫两位同学上讲台，一位同学蒙上眼睛，另一位同学猜展示的物品。猜对给予鼓励。通过更换物品，让学生轮流做这个游戏。)

S₁: What’s this in English?

S₂: Is this a book?

S₁: No, it isn’t.

S₂: Is this a pencil?

S₁: No, it isn’t.

S₂: Is this a pen?

S₁: Yes, it is. You’re right.

…

5. (练习a/an。利用前面总结好的板书，拆分打乱顺序让学生再填一遍a/an，加深对a/an的记忆。)

T: Boys and girls, look at the blackboard, please. I’ll clean up“a”and“an”, then complete by yourselves.

Step 5　 Project 第五步 　综合探究活动(时间:5分钟)

4. (拿出准备好的小黑板，让学生朗读题目，再试着填空。并核对答案。同桌之间互动操练。)

T: Look at the small blackboard, complete the conversation and practice with your partner.

(小黑板的板书设计如下：)

3. (做你问我答游戏。一名学生上讲台，手拿一件学习用品放在背后，让其余学生猜。猜对时，要展示给学生看。换另一件学习用品继续游戏。)

T: S_9, come to the blackboard, please. You answer, and the other students ask.

(S₉手里拿好的东西不能更换，直到猜对。)

Ss: Is this a ruler?(走近时用this。)

S₉: Yes, it is.(展示给学生们看。)

Ss: Is that an eraser?(走远时用that。)

S₉: No, it isn’t.

Ss: Is this a book?

S₉: No, it isn’t.

Ss: Is this a pen?

S₉: Yes, it is.

2. (播放录音2a，让学生跟读，然后两人一组，自编对话，复习巩固this/that和a/an的用法。完成2a。)

　 T:　 Listen to the tape and repeat, then make a conversation.

　 S₇: Is this a ruler?(拿一把尺子问S₆。)

　 S₈: Yes, it is.

　 S₇: Is that a ruler?(拿一块橡皮放在较远处后指着问。)

　 S₈: No, it isn’t. It’s an eraser.

1. (1) (教师出示电话图片，问学生，教授Is this/that a/an …?句型。)

T:　 Is this a telephone?

Ss: Yes, it is./No, it isn’t.(启发学生回答。)

(向学生说明this和that的用法。this→近指，that→远指。)

(2) (师生用不同的物品反复操练Is this a/an …?/Is that a/an …?句型。)

T:　 Is this an orange?(教师指着近处的实物或图片问。)

Ss:　 Yes, it is.

T:　 Is that a desk?(教师指着远处的黑板问。)

Ss:　 No, it isn’t. It’s a blackboard.

…

(引导学生区别a/an，教师归纳总结a/an的用法。)

T: How to use“a”and“an”, do you know?

(引导学生仔细观察，发现规律，教师最后总结。)

3. (1)(用投影仪或小黑板呈现一个苹果的图片，其下面是打乱了顺序的几句话，让学生在黑板上给这些句子重新排序。)

T: Boys and girls, put these sentences in the right order. S₁, S₂, you two, please.

(两名学生把答案写在黑板上，然后师生一起核对。)

A: That’s OK.

B: It’s an apple.

C: A-P-P-L-E, apple.

D: Thank you.

E: How do you spell it?

F: Excuse me, what’s this in English?

(2)(同桌之间用不同的实物。如pencil, desk, ruler, pen, book等练习1a。并到讲台前表演。)

T: Please practice the dialog in pairs and act it out.

S₃: Excuse me, what’s this in English?

S₄: It’s a pencil.

S₃: How do you spell it?

S₄: P-E-N-C-I-L, pencil.

S₃: Thank you.

S₄: You’re welcome.

(3) (拿出一幅电话的图片挂在较远处，让学生两人一组用that进行表演。)

T:　 S₃, S₄, use“that”to make a conversation please.

S₅: Excuse me, S₄. What’s that in English?

S₆: It’s a telephone.

S₅: How do you spell it?/Can you spell it?

S₆: (Yes,)T-E-L-E-P-H-O-N-E, telephone.

S₅: Thank you.

S₆: You’re welcome./That’s OK.

Step 4　 Practice 第四步 　练习(时间:13分钟)

2. (让学生在书上完成1b练习，并核对答案。)

1. (播放1a录音，让学生跟读，然后两人一组进行对话。模仿1a进行巩固练习。完成1a。)