牛津深圳版七下:Unit 6 Electricit grammar 课件 (39张PPT)

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名称 牛津深圳版七下:Unit 6 Electricit grammar 课件 (39张PPT)
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版本资源 牛津深圳版
科目 英语
更新时间 2021-04-16 18:14:43

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Unit 6
Electricity
Grammar
Do homework
What do you usually do at home in your free time?
Play games
What do you usually do at home in your free time?
Help parents do some housework
What do you usually do at home in your free time?
?
Johnny is a helpful boy. Today, he wants to help his father do some housework.
What is Johnny going to do?
Can/May he do it now?
Why or why not?

He is going to change the bulb.
No, he can’t/may not.
Because he must turn off the electricity first.
Modal verbs
can &
cannot
01
can and cannot
Can we use electricity to do many things?

We can use electricity to do many things.
We cannot/ can’t see electricity.
When?
We use ____ to say we are able to do something.
We use _____ to say we are unable to do something.
Yes, we can.
No, we cannot/ can’t.
can
cannot
must & must not
02
must and must not

You must turn off the electricity first.
You mustn’t/ must not say that, Benny!
When?
We use _____ to tell people what to do.
We use _______ to tell people what not to do.
Must I turn off the electricity first?
Yes, you must.
No, you needn’t/ don’t have to.
must
must not
may & may not
03
may and may not
May I touch the wires?

You may turn on the TV.
You may not touch the wires.
When?
We use ____and ________to ask for and give permission.
Yes, you may.
No, you may not.
may
may not
Work out the rule

You may turn on the TV.
You may not touch the wires.
After modal verbs such as can, may and must, we use (the base form/ the –ing form/ the –ed form)of a verb.
You must turn off the electricity first.
You mustn’t/ must not say that, Benny!
We can use electricity to do many things.
We cannot/ can’t see electricity.
When Johnny do the housework, his father is talking with him about safety at home.
Example:
Johnny: May I change the bulb?
Dad: No, you may not. You must switch off the electricity. Then you may change the bulb.
When he do the housework, his father is talking with him about safety at home. P81
cover the meat
lock the door
test the water
tidy up
J: May I …?
D: No, you may not.
You must …first.
Then you may…
When he do the housework, his father is talking with him about safety at home.
J: May I … ?
D: No, you may not.
You must … first.
Then you may…
cover the meat
put the meat in the fridge
put the meat
in the fridge.
When he do the housework, his father is talking with him about safety at home.
J: May I … ?
D: No, you may not.
You must … first.
Then you may… .
lock the door
go to bed
go to bed
When he do the housework, his father is talking with him about safety at home.
J: May I … ?
D: No, you may not.
You must … first.
Then you may … .
test the water
take a bath now
take a bath
When he do the housework, his father is talking with him about safety at home.
J: May I … ?
D: No, you may not.
You must … first.
Then you may … .
tidy up
go out now
go out
What can we use electricity to do?
What can we use electricity to do in streets?
light the roads
make the traffic lights work
can use electricity to light the roads.
can use electricity to make the traffic lights work.
We ________________
_______________
We _________________
____________________
____________________
What can electricity do in factories and villages?
work the machines
water the land
can work the machines in factories.
can help water the land in villages.
Electricity __________
___________________
Electricity _____________
___________________
What can electricity do in families?
wash clothes
bring us information
can help wash clothes in families.
can use electricity to bring us information.
Electricity ___________
___________________
Television ___________
____________________
____________________
Electricity is very useful and important.
We must use electricity safely.
However
It is also dangerous.
So
How should we use electricity safely?
How should we use electricity safely at home?
(according to the following pictures)
At home, we must (not)…
repair machines
touch the plug
put out the fire with water
At home, we mustn’t
_________________________.
repair machines
repair machines by ourselves.
How should we use electricity safely at home?
(according to the pictures)
At home, we mustn’t
_________________________.
touch the plug with wet hands
touch the plug
(dry up)
We must ______________________ first.
dry up our hands
How should we use electricity safely at home?
(according to the pictures)
At home, we mustn’t
_________________________
when machines are on fire.
We must _____________________ first.
turn off the electricity
put out the fire with water
How should we use electricity safely at home?
(according to the pictures)
put out the fire with water at once
X
At school, we must (not)…
turn off the lights
touch the wires
How should we use electricity safely at school?
(according to the pictures)
At school, we ______________________ when we __________________.
must turn off the light
turn off the lights
leave the classrooms.
How should we use electricity safely at school?
(according to the pictures)
At school, we ______________________.
mustn’t touch the wires
X
touch the wires
How should we use electricity safely at school?
(according to the pictures)
When we are outside, we must (not)…
X
X
play mobile phones
fly kites
How should we use electricity safely outside?
(according to the pictures)
When the mobile phone is charging, we
_____________________.
mustn’t play it
X
play mobile phones
How should we use electricity safely outside?
(according to the pictures)
When we are outside, we
_____________________.
mustn’t fly kites near the cables
X
fly kites
How should we use electricity safely outside?
(according to the pictures)
Make a speech
04
Next week, you need to make a speech to your classmates to tell them the importance of electricity and how we can use electricity safely. Please write down a speech.
Writing
Dear class,
Today, electricity is widely used in our daily lives.
——————————————————————————————————————————————————
下周,你将要在班里进行一次关于“电的重要性”和“用电安全”的演讲,请根据以下内容写一份80词左右的演讲稿(文章开头已给出,不计入词数),内容如下:
●电在我们的日常生活中得到越来越广泛的使用,在多个方面帮助着我们。如:
可以照亮马路; 2. 可以帮忙浇灌土地;3. …
●但电也是危险的,我们必须安全用电。如:
离开教室要关灯; 2. 不要接触电线; 3. …
Show time
Summary
modal verbs ____________,
____________,_____________
2. What can we use electricity to do
____________,____________,
____________, ____________?
3. How should we use electricity safely
____________,____________,
_________________________?
can (not)
may (not)
must (not)
in streets
in factories
in villages
in families
at home
at school
when we are outside