资源简介

(共18张PPT)
What interesting experience did Daisy have
How did she feel about this unusual weekend
What electrical appliances did she mention
How do you feel after reading the story
Review the story
Vocabulary review
while
run out
fridge
apartment
go bad
c
a
b
c
a
Vocabulary review
while
run out
fridge
apartment
go bad
apartment
while
fridge
go bad
ran out
candlelight 我们只能在烛光下读写。
imagine 你能想象一个没有电的世界吗？
not work; run out 电池用光时，手机就不能运行了。
live 我的姐姐说如果没有手机，她就不能生存。
Vocabulary review
Translate the sentences. Use the words provided.
We can only read and write by candlelight.
Can you imagine a world without electricity
If the battery runs out, the phone can’t work.
My sister says she can’t live without her phone.
“can”
Modal verbs
Grammar
Which modal verbs do you know
Modal verbs Negative forms
can cannot; can’t
may may not
must must not; mustn’t
should should not; shouldn’t
… …
Observe and think
1. What is the form of the verbs after modal verbs
2. What does the modal verb mean in each sentence
3. Can we change the modal verb “may” into “can” in the sentence “May I try ”
ability
obligation
permission
Sum up the rules
Let's sum up the rules!
After modal verbs such as can, may and must, we use the base form of a
verb.
We use can and cannot (can't) to say we are able or unable to do something.
We use may and may not to ask for, give and refuse permission. In less
formal situations, some people like to use can and cannot (can't) for the
same purpose.
We use must and must not (mustn't) to tell people what to do or what not
to do．
Grammar in use—1
Work in pairs, fill in the blanks and read it aloud.
Check the answer:
(1)can/may (2)can
(3)can/may (4)can/may
(5)can (6)can
(7)can (8)can
(9)can (10)may/can
(11)must (12)Can
(13)cannot/can’t (14)must
(15)must not/mustn’t/cannot/can’t (16)must (17)cannot/can’t
More practice
Choose one of the following topics and discuss it in your group. Remember to use the modal verbs you learnt.
How to use electrical appliances safely
What different students are able to do
Safety rules at school
Grammar in use—2
You must listen carefully to the teachers.
You mustn’t sleep in class.
You must keep the classroom clean.
You mustn’t throw rubbish on the floor.
More practice
Work in groups. Think about the dos and don’ts in the following places.
Write them down.
Then present them to the class.
Library
Home
Metro / Subway station
Example:
Use and apply
Make up sentences using either the pictures and words below or your own ideas.
Each sentence must include at least one word or phrase from the story and one modal verb.
apartment
must
When you leave your apartment, you must turn off the air conditioner.
Can you make up your own sentences Give it a try!
Modal verbs 整体用法 后面接： 句型转换： 具体用法 原形 否定 过去式 应用
can
may
must
Conclusion
What are your special ways of learning vocabulary and grammar
More practice
Complete the sentences with the correct word in brackets.
must
had to
can
can’t
May
must
mustn’t
may
Must
may
can’t
can
Self-assessment
评价内容 评分（1-5）
我能运用本课所学重点词汇进行表达。 1 2 3 4 5
2. 我能理解情态动词的总体特征和具体用法。 1 2 3 4 5
3. 我能正确运用情态动词表达能力、许可、责任等。 1 2 3 4 5
4. 我对词汇学习和语法学习有了更多理解。 1 2 3 4 5
Homework
基础作业
完成并核对课本第139页的情态动词练习。
运用情态动词，写一篇有关安全用电原则的小作文。

拓展作业
用思维导图的形式整理情态动词的用法。
查阅与电相关的知识，如电的发现、电的应用、电的浪费，并结合情态动词的使用作简单记录。
THANK YOU

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