资源简介

(共16张PPT)
Learning objectives
By the end of this class, I can:
1. Get to know the meanings and usage of modal verbs.
2. Use modal verbs properly to talk about rules in daily lives.
3. Make a “Home Electrical Safety Guide”.
Dear Daisy and Benny,
You’re home alone.
Please stay safe with electricity.
Both of you mustn’t touch any electrical appliance with wet hands.
Daisy can use the microwave, but Benny, you mustn’t put metal in it.
You must unplug the hair dryer after use.
You may watch TV for 1 hour.
You needn’t turn it on if you don’t want to.
Be smart, be safe!
Love, Mum & Dad
Daisy's parents were
on a business trip for two days. They left a note for Daisy and their son Benny.
What can they do
What mustn’t they do
Pay attention to the red words. What are they
Modal Verbs
情态动词
Do they change form when the subject changes
Rule 1: Modal verbs: no change for different subjects!
What do these modal verbs mean
What if I remove the can, must, and may
The speaker’s mood and attitude changed!
What other rules do they need
How can we learn more about safe electricity use at home
Activity 1: Read and Understand
Dad, it’s so boring to stay at home.
I miss you.
Benny, why don’t you play with your robot Bobo Just know what Bobo can and cannot do first.
Great! Bobo can introduce how to use it to us.
Instruction card can may must needn’t mustn’t activity
Bobo swim, dance and play chess
You ask Bobo questions
keep Bobo away from water
put Bobo in water
charge Bobo every day
Listen to Bobo’s introduction and complete the instruction card.
(Tick the right modal verb in the table.)





Which modal verb feels the most positive？
Which one feels the most negative？
Activity 2: Listen and Tick
Choose the correct modal verbs to fill in the blanks in the user guide.
can / cannot / may / may not / must / mustn’t / needn’t
1. You _______ close the lid before starting.
2. You _______ put too much food in the blender.
3. You _______ unplug the blender after use.
4. You _______ clean the blender after each use.
5. You _______ touch the blade with your fingers.
6. You _______ use the blender if you don’t want to.
The content of the users’ guide is missing...
User Guide
must
mustn’t
may
can
mustn’t
may not
Look at the verbs after the modal verbs. What do they have in common
Rule 2: modal verbs + do (basic form)
Activity 3: Fill and Explain
Practice in pairs, talk about how to use rise cooker safely.
A: May I use the rice cooker
B: Yes, but you must … / you mustn’t …
A: Must I unplug it
B: You needn’t … but you must …
A: Got it. And I mustn’t …
B: Exactly!
I want to cook rice in a rice cooker, but how should I use the rice cooker
I can help you!
Example
Activity 4: Role-play and Practice
To ensure the safety of electricity usage at home, Daisy decided to make a guide and stick it on the refrigerator.
Group 1-2: Kitchen (microwave, rice cooker, blender, fridge)
Group 3-4: Living room (TV, fan, lights, phone charging)
Group 5-6: Bathroom (hair dryer, water, sockets)
Group 7-8: Bedroom (laptop, alarm clock, heater)
Group Work
Activity 5: Create and Share
Time to show!
Guide for Home Alone Electricity ★★★★★ ★★★★ ★★★
1. I can use correct modal verbs (can, may, must, needn’t, mustn’t, etc.) in the rules.
2. I can match the strength of modal verbs to the right situation (e.g., must for strong rules, may for permission).
3. I can write clear and useful safety rules that help Daisy and Benny stay safe at home.
Check your guide according to the evaluation.
With the right guide on the fridge,
Daisy and Benny can stay safe and smart.
Activity 6: Present and Improve
Electricity makes life easy, but only if we use it safely.
Be smart, be safe!
Homework Must do Benny is going to primary school. Use modal verbs to write at least 2 dos and 2 don’ts to tell him the school rules.
Choose to do Make a “Home Electrical Safety Guide”. Use at least 3 different modal verbs.
1.We ______ see electricity, but we ______ see its power in lights.
A. can; can
B. can’t; can
C. must; may
D. may; must
答案：B
解析：表达“看不见电但能看见其作用”，否定用 can’t，肯定用 can
课堂练习
2.—______ I use the hairdryer in the bathroom —No, you ______. It’s dangerous!
A. Must; mustn’t
B. May; can’t
C. Can; couldn’t
D. May; mustn’t
答案：D
解析：请求许可用 May I... ，禁止用 mustn’t 强调安全规则
课堂练习
3.To save energy, you ______ turn off lights when leaving a room.
A. must
B. may
C. can
D. mustn’t
答案：A
解析：must 表示义务/必要行为（节能要求）
课堂练习
4.Look at the sign: "______ touch wet wires!" It means we ______ keep away.
A. Must; may
B. Don’t; must
C. Can’t; should
D. May not; can
答案：B
解析：警示牌用祈使句 Don’t touch，对应 must（必须遵守）
课堂练习
谢谢观看
Thank you

展开更多......

收起↑