(共37张PPT)
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人教精通版（三年级起点）英语
精选课件
五年级下册
Unit 3 We should obey the rules.
Lesson 18
精通版·五年级下册
Look out! Look out!
You mustn’t litter!
Watch out! Watch out!
You mustn’t cross the street!
Look out! Look out!
You mustn’t spit!
Watch out! Watch out!
You mustn’t pick the flowers!
Let’s chant
Do you obey the public rules in your daily life
What public rules don’t people obey in your daily life
Free talk
Let’s judge
Let’s look at the pictures and judge if people’s behavior（行为）is right and say what rules they should obey.
You must _____________.
help old people
帮助老人
people
人；人们
You must ________________.
keep off the grass
不要进入草地
You must _____________
_______________.
take good care
照看好儿童
take
拿；乘坐
of young children
young
年轻的
children
孩子（child的复数）
You mustn’t _______________.
play on the street
在街道上玩耍
You mustn’t ______.
litter
乱丢杂物
You mustn’t ___________.
pick flowers
摘花
You must ______ for the green light.
wait
等待
play on the street
young
wait
people
child (children)
keep off the grass
take
help old people
take good care of young children
pick flowers
litter
Read the words and phrases
Watch and say
You must wait for the green light.
You mustn’t cross the street when the light is red.
你必须等待绿灯。
红灯时，你不能过马路。
Just practise
help old people
keep off the grass
take good care of young children
帮助老人
不要进入草地
照看好儿童
play on the street
pick flowers
litter
在街道上玩耍
摘花
乱丢杂物
Quick Response
take good care of young children
keep off the grass
litter
help old people
play on the street
pick flowers
Look at the pictures and say the sentences.
You must ________.
You mustn’t ________.
What must I do
You must wait for the green light. You mustn’t cross the street when the light is red.
Situational dialogue
Make dialogues according to the pictures.
What must (not) I do
You must ______.
/ You mustn’t ______.
Just write
wait take
young child (children)
people
Can you write them
You must for the green light.
You must good care of
.
You must help old .
Let’s read and write.
Let’s make and talk
Talk about your sign.
We must wait.
Don’t cross the street.
What must we do
Keep off the grass.
Look, say and role-play
Talk about your sign.
We mustn’t litter.
Don’t litter.
Look at the signs and make sentences
We must (not) ___________.
Don’t ___________.
Talk about your sign.
— What must (not) we do
— _______________.
Look and answer
Watch and chant
ir
The first girl wears a new shirt.
The second girl wears a new skirt.
Today is the first girl’s birthday.
She is as happy as a little bird.
Let’s chant
字母组合ir发/ /的音。/ /是长元音，发音时声带振动。舌平放，舌尖轻抵下齿底部，舌中部略抬起。双唇呈扁平口型。例词：circle, sir。
Phonetic knowledge
ir / /
girl
fire
bird
first
iron
shirt
skirt
hair
Game: 摘桃子
Tips: 读单词，然后点击桃子，将在单词中字母组合ir发音为/ /的单词放到左边的篮子中。
Summary
Key words: wait, take, young, child (children), people
Key expressions: help old people, keep off the grass, take good care of young children, play on the street,
pick flowers, litter
Key sentences: You must wait for the green light.
You mustn’t cross the street when the light is red.
Exercise
一、单项选择。
1. You mustn’t ________ the street now.
A. crossing B. cross C. crosses
2. ________ make noise.
A. Don’t B. Doesn’t C. Aren’t
3. Mike ________ copy Tom’s homework.
A. should B. need C. shouldn’t
4. He mustn’t cross the street ________ the light is red.
A. why B. when C. where
5. Mark mustn’t spit ________ the floor.
A. at B. on C. in
二、根据汉语提示补全句子。
1. You must _____ _____（等待）the green light.
2. You mustn’t _____ _____ _____ _____
（在街道上玩耍）.
3. Sarah often _____ _____ _____ _____（照顾好）
her brother.
4. You mustn’t _____ _______（摘花）.
5. You mustn’t _____（乱丢杂物）.
wait for
play on the street
takes good care of
pick flowers
litter
1. Copy the words, phrases and sentences on Page 33 three times.
2. Make more public rules for the parks.
Homework
