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(共31张PPT)
Unit 8
It must belong to Carla.
SectionB 1a-1d　
Language goals
语言
能力
学习
能力
思维
品质
文化
意识
通过谈论“外星人事件” ，细心观察，客观解释奇怪现象，做到科学认识世界。
1. 学习并掌握词汇land ,alien, run after,suit等；
2.进一步感知运用“情态动词+be+doing”结构对正在进行的动作表示推测的用法。
通过活动练习，让学生根据观察到的现象进行合理性推测，锻炼逻辑思维推理能力。
1.培养学生从听力材料中提取目标语言和重要信息的能力；
2.情态动词对现在进行的动作进行推测的用法。
1
2
3
4
She could / might be a / an ...
nurse
What could / might the girl do
English teacher
doctor
She could / might be a / an ...
What could / might the woman do
He could / might be a / an ...
What could / might the man do
reading
对正在发生的事情进行推测：
情态动词 + be + doing
playing basketball
He could / might be doing ...
What could / might the boy be doing
They could / might be doing ...
What could / might they be doing
Review
can 不肯，may 不问
must 肯定不否问。
According to what we learned last class to talk about
the meaning of these sentences.
can (could)，may (might)，must 表“推测”时
所适用的句式区别。
can 一般
不用于肯定句;
Can [Could] this be true
He can't be at home now.
It could(may/might) rain later this evening.
Review
can 不肯，may 不问
must 肯定不否问。
According to what we learned last class to talk about
the meaning of these sentences.
may (might)一般不用于疑问句
He may have caught a cold today because his face looks pale.
I'm not sure if she might come tomorrow.
Review
can 不肯，may 不问
must 肯定不否问。
According to what we learned last class to talk about
the meaning of these sentences.
must 一般仅用于肯定句，不用于否定句和疑问句
The window is broken. Someone must have thrown a stone at it.
You have worked hard all day. You must be tired.
mustn't
不能用于表“推测”
否定推测用can’t.
Pre-listening
What is this movie about
alien.
Pre-listening
What might you feel when you see
a UFO and the alien
['e li n] n.外星人
Are you interested in the UFO and aliens
excited
scared
surprised
Pre-listening
a
b
c
Make inferences.
What might the UFO be doing
It might be landing.
n.陆地；v.着陆
Pre-listening
a
b
c
Make inferences.
What is the alien doing
It is running after the man.
追逐；追赶
Pre-listening
a
b
c
Make inferences.
Why is the man running
He could /might be running for/to...
Pre-listening
a
b
c
1a
Look at the pictures. Then use the words in the box to write a sentence about each picture.
a. _____________________________________
b. _____________________________________
c. _____________________________________
An alien is running after a man.
The man is running, looking afraid.
A UFO is landing.
land
man
UFO
run
alien
run after
What might be the right order of this story
Pre-listening
a
b
c
What might be the right order of this story
I think picture A might be the first one because the UFO must land first , and then the alien can get out and run after the man .
I think picture B could be the first one . Maybe the alien runs after the man because it wants to catch him .A UFO comes here to take them to another planet .
While-listening
1b
a
b
c
Listen and number the pictures[1-3] in 1a.
1
2
3
While-listening
1b
Listen and write two or three sentences to finish the story.
a
b
c
1
2
3
A woman is filming with a camera.
They are making a movie.
…
While-listening
Listen again. Complete the sentences.
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
________________
1c
late for work
a plane
an alien
from the TV news
a UFO
dreaming
making a movie
running for exercise
M: Hey, look at the man running down the street. I wonder _______________.
W: He ________________ for exercise.
M: But he’s wearing a suit. He _________ late for work.
W: He looks kind of afraid. (pause) Oh, no! What’s that
M: Where
W: There’s something in the sky.
M: It _________ a plane.
W: No, it _________ a plane. It’s too big. It _________ a UFO.
M: A UFO ________________
W: Look, now the UFO is landing ...
Listen again and fill in the blanks.
must be running
While-listening
what’s happening
might be
could be
can’t be
What’s going on
must be
在空中
M: And there’s something strange getting out. It ____________ an alien.
W: And the alien is ____________ the man! I ____________________.
M: ________we should call the police. (pause) Hey, wait a minute. What’s that
W: Where
M: Over there.
W: It’s a woman ______________.
M: She __________ from the TV news.
W: No, look at all those other people. They’re actors.
Oh! They _______________ a movie.
Listen again and fill in the blanks.
While-listening
Maybe
could be
must be
must be dreaming
must be making
running after
with a camera
拿着相机的妇女
Post-reading
Retell the story according to the mind map.
What happened
They must be ...
He might be ...
It could be ...
It must be ...
She could be ...
a man running
something in the sky
something strange
a woman
with a camera
Role play the conversation between the man and woman.
1d
Let’s talk
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
late for work.
Hey, look! There’s something in the sky.
It could be a plane.
observation
inference
充足理由进行推断
Do you believe in aliens really exist in the universe Why
What do you think of them
Let’s talk
You can speak like this:
I do believe!
Firstly...,Secondly...
I think they could be friendly…
1.A UFO is landing.
language points
land
(1)作不及物动词，意为“降落，登陆”。
The plane can land safely.
(2)作及物动词，意为“使着陆；使靠岸”。
He managed to land his kite. whose
(3)作名词，意为“陆地；土地”。
Elephant is the biggest animal on the land.
在这种结构中，
如果特殊疑问词在句中作主语，特殊疑问句语序；
如果特殊疑问词在句中不作主语，特殊疑问句用陈述语序。
2.Why do you think the man is running
考点
“疑问词 + do you think + 其他”构成的特殊疑问句
Who do you think is the tallest in your class
Where do you think we should go for a holiday
language points
I. 看图完成句子。
1. The _______ is landing.
2. He wears a new _______ today.
3. Do you want to make friends with the________ It looks friendly.
UFO
suit
alien
Exercises
II. 从方框中选词并用其适当形式填空。
1. I guess he must be ___________ for exercise.
2. He looked up and saw a kite flying in the ______.
3. He might be running _________a bus.
4. In ten minutes the plane will ________ in Beijing.
5. Luckily, I had my ________ along. I can take some photos for you.
camera, run, land, sky, catch
running
sky
to catch
land
camera
III. 完成句子。
1. 他没赶上校车，可能上学要迟到了。
He didn’t catch the school bus. He might ___ ___ for
school.
2. 那些警察可能在追小偷。
The policemen might ______ _______ after the thief.
be late
be running
3. 他们一定是在举办聚会。
They _______ _______ _______ a party.
4. 她说她梦见了外星人。
She said she _______ _______ an alien.
5. 她看起来有点儿害怕，她发生了什么事？
She looks kind of scared. What’s _________ _____ her
must be having
dreamed of
happening to
IV. 根据汉语完成句子，每空一词。
1. 你认为那个人为什么在跑呢？
_____ _____ _____ _____ the man is running
2. 他每天早上爬山的目的是为了得到锻炼。
He climbs mountains every morning _______ _________.
Why do you think
for exercise
1. Look at the pictures and describe them in at least three sentences by using could / might be doing.
2. Surf on the Internet for information about Stonehenge and take notes.

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