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Unit 8 It must belong to Carla.
第三课时（导学案）
导学案
教学目标 1. 语言能力：通过观察归纳，正确理解和运用情态动词must,
could, might, can’t
2. 文化意识：通过对语法的总结归纳学习，学会在生活中多观察，
多思考，做生活中的有心人。
3. 思维品质：通过观察讨论归纳，总结情态动词表推测的用法，提
高思维的批判性和逻辑性。
4. 学习能力：能够在学习中积极思考，尝试使用多种策略共同解决
问题。
重难点 1. 正确理解并区分情态动词表推测的用法
2.不同情景灵活运用情态动词
教学准备 教具准备: 多媒体
复习案 【短语】
1.outside the window______________2. have fun______________
3.next-door neighbor______________ 4.at first ______________
5.run away ______________6.feel uneasy ______________
7.have no idea ______________8.have fun (in) doing sth. ______________
Presentation
语法 1. 复习填空
We live in a small town and almost everyone knows each other. It used to be very quiet.
However, these days, something unusual is happening in our town. Victor’s wife thinks
that it _________ an animal, but Victor and his friends think it ________ teenagers
having fun. The policemen think it _________ the wind. Helen thought it ___________
a dog at first, but she changes her mind later. One woman in the area thinks it’s too big
to be a dog. She thinks that _______ it was a bear or a wolf. The writer thinks the noise-
maker is having too much fun creating fear in the neighborhood.
2.语法聚焦
1）.这是谁的排球？
is this ?
这一定是卡拉的。她热爱排球运动。
It be . She loves volleyball .
2）.这是谁的发带？
is this ?
它可能是梅的发带。或者可能属于琳达。他们两人都是长发。
It be Mei's hair band . Or it belong to Linda.
They have long hair .
3）.那晚你看到了什么？
did you see that night ?我不确定，但肯定不可能是狗。它更大，我想也许是一头熊或一匹狼。
I'm , but it a
dog .
It was bigger, I think it a bear or a wolf .
3. must表示有把握的______推测，意思是______。只能用于肯定句。
他肯定知道答案。e.g. He ______ ______ the answers.
他肯定不知道答案。e.g. He ______ ______ the answers.
Tips如果要表示“一定不”，应该用
你绝不能迟到。e.g. You ______ ____ late.
Tips mustn’t do 表示
4. can表示推测时，意思是______。一般用于否定句或疑问句。
他肯定不知道答案。e.g. He ______ ______ the answers.
Tips can’t表示 否定推测，意思是
5. could/may/might表示把握性不大的推测时，意思是______。
今天下午可能会下雨。e.g. it rain this afternoon.
那个消息可能不是真的。e.g. The news might not/may not be true.
Tips: may not/might not意思是 。
那个消息可能不是真的。e.g. The news could not be true.
Tips: could not意思是
Practice
趁热打铁 Ⅰ.单项选择
1.— Who’s singing in the next room?
— It ____ be her. She has gone to New York.
A. can’t B. must C. shouldn’t D. can
2. —Whose T - shirt is this?
—It ______ be John' s. It’s ______ small for him.
A. can't; much too B. can't; too much
C. mustn't; much too D. mustn't; too much
Ⅱ.根据汉语提示或用括号内所给词的适当形式填空。
1.—Is Tom coming by train?
—He (可能) drive his car. I'm not sure.
2.—Look! The man welcoming us at the school gate (一定) be our
headmaster.
—No, it (不可能) be him. He is having a meeting in the office
now.参考答案
【自主复习案】
1. 在窗外
2. 玩得高兴
3. 隔壁邻居
4. 最初； 首先
5. 逃跑
6. 心神不安
7. 一点不知道； 没办法
8. 做某事很愉快
【语法】
1. could be must be might be might be maybe
2.
Whose volleyball must Carla’s
Whose hair band could might both
What Not sure can’t be might be
3.
肯定 一定 must know can’t know can’t
mustn’t be 禁止做
4.
可能 can’t know 不可能
5.
可能 could/may/might 可能不 不可能
【趁热打铁】
1.A 2. A
1.may/might
2.must
can't
