人教版九年级全册Unit8It must belong to Carla. section A GrammarFocus-4c 课件(共20张PPT，内嵌音频)

(共20张PPT)
Unit 8 It must belong to Carla.
九年级上册
Grammar Focus-4c
1.学习情态动词并能在特定语境中使用。
2.能积极参与师友互助活动，师友共同完成学习任务。
能对自己的学习进行评价，总结学习方法。能利用多种教育资源进行学习。
课程目标
1.掌握本单元的重点单词、短语和句型。
2.掌握情态动词must，might，could, can't表示推测时的用法。
3.掌握so，as，because，or, not only...but also等连词的用法。
1.在Section A部分，主要进行听说练习，在练习中初步学习must, might, could, can't表推测的用法。
2.在Section B部分，重点学习2b部分的课文，了解关于世界闻名的巨石阵的相关内容。在课文中，进一步学习本单元的单词短语及语法要点。
1.培养学生在学习和生活中勇于发现、积极探索的精神。2.训练学生的思维能力，提高对事物推理和判断的能力。
单元目标
1.学习词汇：laboratory, coat, sleepy。
2.进一步学习情态动词must，might, could, can't表推测的用法。
3.结合 Grammar Focus中的重点句型，对重点语法和句型进行进一步的学习和巩固，再进行Section A部分的综合习题练习。
4.训练学生的思维能力，提高对事物推理和判断的能力。
课时目标
课时目标
学情分析
本单元重点学习情态动词 must, might， could， can’t表示推测的用法，这些情态动词都是学生之前已经学过的，对其用法也很熟悉，但在本单元，教学的重点是这些情态动词表示推测的用法，要注意进行区分和辨析。
课时目标
教材分析
本单元的教学话题是对未知的事物作出推断，重点语法结构为情态动词 must, might， could， can’t表示推测时的用法。本单元的课文具有很强的故事性和神秘性，教师可利用学生的好奇心理来让学生作出推断，在具体的语言运用中巩固情态动词must, might，could，can’t表示推测时的用法。让学生在实际生活中，能够就身边发生的事情作出自己的推断，并用英语流利地表达出来。
本课时对本单元的重点句型做了归纳，进一步巩固学习情态动词 must, might， could，can't表示推测。
Grammar Focus
I学习语法--1.师友感知
1.--Whose volleyball is this .
--It must be Carla’s. She loves volleyball.
2.--Whose hair band is this
--It could be Mei’s hair band . Or it might belong to Linda . They both have long hair.
3.--What did you see that night
--I’m not sure, but it can’t be a dog. It was bigger. I think it might be a bear or a wolf.
这是谁的排球？
它一定是卡拉的。她喜欢排球。
这是谁的发带？
它可能是梅的发带。或者它可能属于琳达。她们两个都留着长发。
提示：
1.独立阅读，翻译句子；2.师友互助；3.观察标红部分, 总结语法结构.
那天晚上你看见什么了？
我不确定，但是它不可能是一条狗。它更大一些。我想它可能是一头熊或一只狼。
（1）“must＋动词原形”，意为“一定，肯定”。 must表示推测的用法只用于肯定句中.
eg：There must be something wrong with the computer.
电脑肯定有点问题。
（2）“may/might/could＋动词原形”表示推测,意为“也许,可能”。
The guitar might be Jane's. She plays the guitar.
这把吉他可能是简的。她弹吉他。
It could be Mei's hair band.
它可能是梅的发带。
（3）“can't＋动词原形”表示推测,意为“不可能”。
There is no light in the room. She can't be at home now.
房间里没有灯光。她现在不可能在家里。
That man can't be Mr. Black. He is much taller.
那个人不可能是布莱克先生。他高得多。
情态动词表示推测
I学习语法--2.教师点拨
【活学活用一】
用适当的情态动词填空。
1. — Susan has bought a large house with a swimming pool.
— It ______ be very expensive. I never even dream about it.
2. — Listen! Is Mr. Green giving a report in the hall
— No, it ______ be him. He has gone to Japan.
3. Ann hasn’t come to school today. I think she___________ be ill.
4. The guitar _______________ belong to Alice. She likes playing
the guitar.
5. — I wonder if this is Jack’s book.
— It ______ be his. It has Linda’s name on it.
must
can’t
may/might/could
may/might/could
can’t
Ⅱ题型讲解--1. 师友练习
Choose the best way to
complete each sentence using the words in brackets.
4a
1. A: Where’s Jean
B: I’m not sure. She __________(is/might be/must be) in the
laboratory.
2. A: Everyone is going to the pool after school.
B: Really It _______(must be / can’t be / could be) hot outdoors.
3. A: That’s the phone.
B: Hmm. I wonder who it ____________ (must be / could be /
should be).
4. A: I wonder if these are Jim’s glasses.
B: They ____________ (can’t be / might be / could be) his. He
doesn’t wear glasses.
5. A: I hear water running in the bathroom.
B: It _________________ (could be / must be / can’t be) Carla.
She was thinking of taking a shower.
might be
must be
could be
can’t be
could be/must be
III拓展提高--1.师友练习
Complete these responses.
4b
1. A: Many people are wearing coats.
B: The weather must be _______________________.
2. A: Sally has been coughing a lot.
B: She might be _______________.
3. A: This restaurant is always very crowded.
B: The food ____________________.
4. A: Whenever I try to read this book, I feel sleepy.
B: It can’t ___________________________.
cold outside/getting colder
having a cold/ill
must be delicious/good
be that boring/be interesting
III拓展提高--1.师友练习
Whenever I try to read this book, I feel sleepy.
每当我试图读这本书时，我都感觉到困倦。
【词汇解剖】
本句是whenever 引导的时间状语从句。
sleepy 是形容词，意为“困倦的；瞌睡的”。
【妙辨异同】
sleepy是形容词，意为“困倦的；瞌睡的”。即可作定语。也可作表语。
asleep是形容词，意为“睡着的”，只能作表语，不能作定语。fall asleep 意为“入睡”。
III拓展提高--2.教师点拨
IV. 总结归纳--1. 师友归纳
IV-1 师友讨论
What did you learn in this class
(这节课你掌握了哪些知识？）
IV-2 师友评价
What do you think of your partner
(你们师友两人表现如何？)
Which is the best pair
(本节课的最佳师友是谁？)
IV. 总结归纳--2. 教师总结
情态动词表示推测
must ＋动词原形
may/might/could＋动词原形
can/could not＋动词原形
Review passive voice we have learnt today.
Preview the new words we will use in the next lesson.
Homework
Unit 8 Section A Grammar focus-4c
情态动词表示推测
must ＋动词原形
may/might/could＋动词原形
can/could not＋动词原形
1a Look at the pictures. Then use the words in the box to write a sentence about each picture.
land man UFO run alien run after
a. A UFO is landing.
b.The alien is running after the man.
c. The man is running.
a
b
c
2
3
1
Listen and number the picture[1-3]in 1a. Then write two or three sentences to finish the story.
1b
__________________________________________________________________________________________________________
There is a woman with a camera.
They must be making a movie.
They see… The man says… The woman says…
1. a man running he might be _________________ he could be ____________________
2. something in the sky it could be________ it must be __________
3. something strange it must be ________ I must be ___________
4. a woman with a camera she could be _________________ they must be
____________________
late for work
running for exercise
a plane
a UFO
an alien
dreaming
from the TV news
making a movie
Listen again. Complete the sentences.
1c
1d Role play the conversation between
the man and woman.
A: Why do you think the man is running
B: He could be running for exercise.
A: No, he’s wearing a suit. He might be running to catch a bus to work.
PAIR WORK