Unit 4 Road safety 第1课时 课件 (共31张PPT)

Unit 4 Road safety
第1课时
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Story time
road
马路；公路
形近 read（动词）读
单元新词
例 There is a traffic jam on the road.
马路上交通拥堵。
近义 street（名词）街道
短语 on the road 在马路上
safety
安全
单元新词
短语 road safety 马路安全
traffic safety 交通安全
反义 danger（名词）危险
例 We are having a lesson about traffic safety.我们正在上一节关于交通安全的课。
cross
穿过；穿行
形近 across（介词）横过
单元新词
例 The girl helped the old lady cross the road. 那个女孩帮助老奶奶过马路。
联想 crossing（名词）十字路口
safely
安全地
巧记 safe（安全的）+ly=safely（安全地）
单元新词
例 He reached the top of the mountain safely.
他安全地到达了山顶。
must
必须
形近 most（副词）最
近义 have to 不得不，必须
单元新词
例 You must finish your homework first.
你必须先完成你的家庭作业。
zebra crossing
斑马线
拓展 复数：zebra crossings
单元新词
例 We should cross the road at the zebra crossing. 我们应该走斑马线过马路。
safe
安全的
短语 a safe place 一个安全的地方
单元新词
例 It's not safe to get out of the car in the wild zoo. 在野生动物园下车是不安全的。
pavement
人行道
巧记 sleep（睡觉）+y=sleepy（困的，困倦的）
联想 asleep（形容词）睡着的
单元新词
例 I am a little sleepy. 我有点困。
look out for
当心；提防
联想 take care 当心，小心
单元新词
例 You must look out for the cars on the road. 在马路上你必须当心小汽车。
easily
容易地
拓展 easy（形容词）容易的
联想 simply（副词）简单地
单元新词
例 He can lift John up easily.
他可以很容易地把约翰提起来。
follow
遵守
反义 break（动词）违反
单元新词
例 Everyone should follow the traffic rules.
每个人都应该遵守交通规则。
rule
规则
形近 ruler （名词）尺子
单元新词
例 We should follow the class rules.
我们应该遵守班级规则。
短语 follow the rules 遵守规则
班级规则
stay
保持
形近 star （名词）星星；明星
单元新词
例 Please stay quiet. 请保持安静。
拓展 stay（动词）停留，待
light
灯
巧记 有灯（light）的夜晚（night）才会明亮。
单元新词
例 There is no light in that room.
那个房间里没有灯。
拓展 light（名词）光线
单词巩固
马路
穿过
必须
安全的
road
cross
must
safe
单词巩固
安全地
人行道
容易地
pavement
easily
safely
单元新知
Story time
Tip: The pictures can help you understand the text. See page 90.
Road safety
There are many busy roads in the city. How can you cross them safely ？
First, you must look for a zebra crossing. Then, you must look at the traffic lights and wait for the green man.
Story time
Can you see the red man？You mustn't cross the road now.
Look！Here's the green man. You can cross the road now.
Story time
Sometimes, you cannot find a zebra crossing near you.
To keep safe, you can wait on the pavement and look
out for cars and bikes. You must first look left, then
right and then left again. You can also cross the road
with other people. Then the drivers can see you easily.
Story time
Some children run or play football on the road. This is not safe. You must not play on the road because there are many cars and bikes.
Follow the rules and stay safe on the road!
Story time
a pavement
a road
a zebra crossing
Story time
green man
red man
traffic lights
知识讲解
How can you cross them safely？
你怎样才能安全地穿过它们？
1
例 How can I speak English well ？
我怎样才能说好英语?
询问某人怎样才能做某事，可用句型“ How can+ 主语 + 动词原形（ + 其他）？”。 how 为副词，意为“怎样；如何”，常用来引导特殊疑问句，询问做某事的方式或方法。 can 是情态动词，意为“能；可以”，后面接动词原形。
知识讲解
First, you must look for a zebra crossing.
首先，你必须寻找斑马线。
2
例
You must call him this evening.
今天晚上你必须给他打电话。
must 为情态动词，意为“必须”，语气强烈，没有人称和数的变化，后面接动词原形。表示某人必须做某事，可用句型“主语 +must+ 动词原形（ + 其他）”。
知识讲解
You mustn’t cross the road now.
现在你禁止穿过马路。
3
例
You mustn't smoke here. 在这里你禁止吸烟。
mustn't 是 must not 的缩写形式，意为“禁止；不允许”，表示强烈的否定语气，后面接动词原形。表示某人禁止做某事，可用句型“主语 +mustn't+ 动词原形（ + 其他）”。
知识讲解
You can cross the road now.
现在你可以穿过马路。
4
例
You can go home now. 现在你可以回家了。
can 为情态动词，在此句中表示许可，意为“能;可
以”，其否定形式为 can not 或 cannot ，可缩写为
can't 。表示某人可以 / 不可以做某事，可用句型“主
语 +can/can't+ 动词原形（ + 其他）”。
Story time
Think and write
Complete the notes below.
·To cross a busy road safely, we must first look for a __________ and then look at the ___________.
·Sometimes, we can wait on the ___________. We must first look _________, then _________ and then look _________ again before we cross the road. We can also cross the road with ____________.
·We must not ___________ or ___________ on the road.
zebra crossing
traffic lights
pavement
left
right
left
other people
run
play
Story time
Look and say
What must you do to cross the road safely ？ What must you not do on the road ？
We must...
We mustn't...
课后作业
熟记本课时所学单词及句型。