九年级英语全册 Unit 8 It must belong to Carla Section A（Grammar Focus-4c）教案（新版）人教新目标版-（新版）人教新目标版初中九年级全册英语教案.doc

Section A (Grammar Focus－4c)

1．重点单词：laboratory，outdoors，coat，sleepy
2．重点句式：
What did you see that night?
I think it might be a bear or a wolf.
She was thinking of taking a shower.

情态动词must，could，might和can't 的用法

情态动词must，could，might和can't 的用法

一、预习课本P60新单词并背诵，完成下面的汉译英。
1．实验室________　　　　2.外套________
3．困倦的________
二、认真预习Grammar Focus－4c找出下列句型。
1．那天晚上你看到什么了？________________________________________________________________________
2．我认为它可能是一头熊或一匹狼。
________________________________________________________________________
3．她正想着要去洗澡。________________________________________________________________________

Step 1　情景导入
Teacher：We have learned how to use “must” to show that you think something is probably true.We also learned how to use “might” or “could” to show that you think something is possibly true and how to use “can't” to show that you think something is not true. Today we are going to do some exercise.
环节说明：开门见山的提出本节课的学习目标——情态动词表示猜测的用法。
Step 2　完成教材Grammar Focus的任务
1．学生大声朗读Grammar Focus的句子。(2分钟)
2．小结训练。(2分钟)
Whose_volleyball_is_this?
(这是谁的排球？)
It_must_be_Carla's.She_loves_volleyball.
(它一定是卡拉的，她喜欢排球。)
Whose_hair_band_is_this?
(这是谁的发带？)
It_could_be_Mei's_hair_band.Or_it_might_belong_to_Linda.They_both_have_long_hair.
(它可能是梅的发带。或者它可能属于琳达。她们都有长发。)
What_did_you_see_that_night?
(那天晚上你看到什么了？)
I'm_not_sure，but_it_can't_be_a_dog.It_was_bigger.I_think_it_might_be_a_bear_or_a_wolf.
(我不确定，但是它不可能是一只狗，它比较大。我认为它可能是一头熊或者一匹狼。)
　　环节说明：通过对Grammar Focus 句型的填空练习能够使学生更好地理解和掌握本单元的重点语法和句型。
Step 3　完成教材4a－4c的任务
1.认真阅读4a中的对话，然后从括号内选择合适的词来补全对话，完成后小组内互相交流答案，教师点拨易错点。(3分钟)
2．两人一组练习4a中的对话，并邀请几组学生表演对话。(3分钟)
3．读4b中的句子，然后推测出现这些情况的原因，完成后小组内互相交流答案。(3分钟)
4．认真观察4c中房间的图片，根据房间的物品及物品摆放，仿照4c的对话形式和你的搭档互相交流各自的看法。
参考案例
A：It could be a girl's room because it's very tidy.
B：I guess so.But it might be a boy's room because the clothes look like boys' clothes.
3．小结训练。(3分钟)
(C)1.—There is a beautiful blouse on the bed.I think it ________ be a girl's room.
—I think so.
A．may　　　B．can't　　　C．must　　　D．can
(A)2.—Could I play computer games now?
—No，you ________.You must help me with the housework first.
A．mustn't B．may not
C．could D．needn't
(C)3.—Is he your English teacher?
—No，he ________ be our teacher.The man is much shorter.
A．mustn't B．may not
C．can't D．needn't
环节说明：通过本环节的对话练习及小结训练让学生熟练地掌握了情态动词表示推测的用法。
Step 4　问题探究
(　)1.The pair of shoes ________ yours.It is ________ big for you.
A．must be；too much B．can be；much too
C．can't be；too much D．can't be；much too
答案选择D，本句子是考查情态动词和be连用表示推测的用法，所以由从句的意思理解到much too big表示“太大”的意思。

请学生们做前面课时训练部分。