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(共29張PPT)
Unit2
No Rules, No Order
Section A Grammar Focus
Learning Objectives
In this lesson, we will be able to:
1. understand the rules of using imperatives and modal
verbs can, have to and must;
2. make rules for a certain place.
I say
You say
“Don’t”
“run!”
I say
You say
“Don’t”
“litter!”
I say
You say
“Be”
“polite!”
I say
You say
“Be”
“quiet!”
I say
You say
“Come”
“early!”
I say
You say
“Keep”
“clean!”
3a.
Read the sentences. Do the verbs in bold need to change forms Why
Walk in the hallway. Don’t run!
Be polite and treat one another with respect. Don’t litter. / You mustn’t litter. / You can’t litter.
Can we bring our phones to class No, we can’t. We must keep them in our lockers.
Can we eat snacks in class No, we can’t eat in class. We have to eat in the dining hall.
在 祈使句中 和 情態動詞后，動詞均用原形。
祈使句中
情態動詞后
Modal Verbs —— “have to”
What do you have to do
We have to do morning exercises.
Do you have to do morning exercises every school day
No, we don’t.
We don’t have to do it on Monday.
have to
have to
have to
Do
we don’t
don’t have to
Modal Verbs —— “have to”
1. Affirmative (肯定句):
I/We/You/They + _________ + _________
2. Negative (否定句):
I/We/You/They + _______________ + __________
3. General question (一般疑問句):
__________ + I/we/you/they + ___________ + v. 原 + ...
Yes, I/we/you/they + ________.
No, I/we/you/they + ________.
have to
don’t have to
Do
have to
do
don’t
v. 原
v. 原
Modal Verbs —— “have to”
What does she have to do
She has to wear the school uniform.
Does she have to wear the school uniform every day
No, she doesn’t.
She doesn’t have to wear the school uniform on weekends.
does she
has to
Does
she doesn’t
doesn't have to
have to
Modal Verbs —— “have to”
1. Affirmative (肯定句):
He/She/It + _________ + _________
2. Negative (否定句):
He/She/It + _______________ + __________
3. General question (一般疑問句):
__________ + he/she/it + ___________ + v. 原 + ...
Yes, he/she/it + ________.
No, he/she/it + ________.
has to
doesn’t have to
Does
have to
does
doesn’t
v. 原
v. 原
Modal Verbs —— “can”
Can we bring our mobile phones to class
Can you eat snacks in class
Can he wear his own jacket
Questions
Yes, we/you/he ... can.
No, we/you/he ... can’t.
Answers
Can是情態動詞， 這里表______________其后用動詞________，_______ 人稱變化。
permission
原形
無
Can
Can
Can
bring
eat
wear
3b.
Complete the sentences using can, have to / must, or can’t / mustn’t.
1. Don’t jump the queue. You ________ wait for your turn.
2. You ________ just ask your teacher a question in class. You
________ raise your hand first.
3. A: Can I leave the class if I don’t feel well
B: Yes, but you ________ tell your teacher about it when you
________ be absent from class.
4. A: Hey! Can I look at your book
B: Shh, we ________ talk quietly in the library.
5. A: Can you put on your seat belt We ________ wear one
when we’re in a car.
B: Sure. Thanks!
can’t = can not
mustn’t = must not
3b.
Complete the sentences using can, have to / must, or can’t / mustn’t.
1. Don’t jump the queue. You _____________ wait for your turn.
插隊
等待
have to / must
social rule
3b.
Complete the sentences using can, have to / must, or can’t / mustn’t.
2. You ________ just ask your teacher a question in class. You _________ raise your hand first.
can’t
have to / must
class rule
3b.
Complete the sentences using can, have to / must, or can’t / mustn’t.
3. A: Can I leave the class if
I don’t feel well
B: Yes, but you ________
tell your teacher about
it when you ________
be absent from class.
缺席
have to / must
have to / must
/ li:v / 離開
/ bs nt/
class rule
3b.
Complete the sentences using can, have to / must, or can’t / mustn’t.
4. A: Hey! Can I look at
your book
B: Shh, we ________
talk quietly in the
library.
quiet(adj.) - quietly(adv.)
have to / must
library rule
3b.
Complete the sentences using can, have to / must, or can’t / mustn’t.
5. A: Can you put on
your seat belt We
________ wear one
when we’re in a car.
B: Sure. Thanks!
have to / must
traffic rule
Imperatives(祈使句)
表命令、勸說或警告，也可表請求。
Be型
Do型
Don’t型
Be polite and treat one another with respect.
Be quiet in the library.
Walk in the hallway.
Wear the school uniform.
Don’t run!
Don’t litter!
3c.
Look at the first sign and read the rules. Then write the rules for the other signs.
Do not eat or drink.
No eating or drinking.
You can’t / mustn’t eat or drink.
3c.
Look at the first sign and read the rules. Then write the rules for the other signs.
Do not park.
No parking.
You can’t / mustn’t park.
3c.
Look at the first sign and read the rules. Then write the rules for the other signs.
Do not take photos.
No photos.
You can’t / mustn’t take photos.
3c.
Look at the first sign and read the rules. Then write the rules for the other signs.
Do not swim.
No swimming.
You can’t / mustn’t swim.
3c.
Look at the first sign and read the rules. Then write the rules for the other signs.
Do not feed the birds.
No feeding the birds.
You can’t / mustn’t feed the birds.
3d.
In groups, brainstorm three rules for one of the places below. Then draw signs to show the rules. Share your signs in class and explain what they mean.
cinema
library
hospital
park
school dining hall
Sample
library rules
In the library, we must keep quiet first. We mustn’t make noise.
Second, we can’t bring any food or drink to the library. We must keep it clean and tidy.
What’s more, we have to return the books after we finish reading.
Let’s make the library a better place for us to study.
Thank You!

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