Unit 3 Lesson 16 How Safe Is Your Home 课件(共25张PPT)

(共25张PPT)
Unit 3
Lesson 16
How Safe Is Your Home
新课导入
Watch a video.
1.掌握本课单词:prevent, certain, burn, slip, put out 等
2.掌握祈使句的用法
3.了解家里存在的安全隐患并且知道如何防范危险
预习检测
1.The naughty boy always makes his sister ____.
A. cry B. crying C. cries D. to cry
2.—They go to school early in the morning.
—________.
A. So do Tom. B. So Tom do.
C. So does Tom. D. So Tom does.
A
C
3.We all introduced_______before the meeting started.
A.ourself B.us C.ourselves D.we
4.Jenny put her new phone onto the table_______.
A.careful B.care C.careless D.carefully
5.It's not easy ____ English well in a short time.
A.to learn B.learn C.learning D.learns
C
D
A
知识梳理
1.Can people prevent certain accidents
prevent为及物动词,意为“阻止,预防”,常用结构prevent sb. from doing sth.意为“阻止某人做某事”,与stop sb. from doing sth.用法相同。
2.So be careful!
careful为形容词,意为“小心的,仔细的”,其副词形式为carefully,意为“小心地,仔细地”;名词形式为carefulness,意为“小心,仔细,认真”。
3.Many people hurt themselves by falling off chairs.
◆hurt oneself意为“伤着自己”。hurt themselves表示“伤到他们自己”,其中themselves是反身代词。
◆fall off意为“掉下来”,强调“从什么地方掉下来”,相当于drop/fall down from,后面接名词作宾语。
4.Don’t use water to put out kitchen fires.
◆这是一个否定形式的祈使句。以动词原形开头的祈使句变为否定形式时,多在动词原形前加don’t。
◆use sth. to do sth.意为“用某物做……”,to do不定式表目的。
◆put out意为“扑灭,熄灭”,是由“动词+副词”构成的动词短语,后接代词作宾语时,代词要放在put与out中间。
◆和fire相关的短语:catch fire(着火),make a fire(生火),discover a fire(发现火情),light/start a fire(点火),put out the fire(灭火),set fire to sth.=set sth. on fire(放火烧……),be on fire(失火,在着火)。
5.Use baking soda or salt instead.
instead为副词,意为“代替,反而,却”,instead of也表示“代替”。
【辨析】instead,instead of
instead常位于句末,译作“而是”,instead of常位于句中,译作“而不是”。
6.Be careful with scissors and knives!
be careful with意为“小心,谨慎……”。
7.It’s easy to slip and fall on a wet floor.
不定式作主语时,往往用it作形式主语,而将不定式放在后面。这句话中的主语是to slip and fall on a wet floor,It是形式主语,is是系动词,easy是表语。
8.Be sure to keep the bathroom floor dry after you have a shower or bath.
◆be sure to do sth.意为“务必/切记去做某事”,常用于祈使句中,表示说话人向对方提出要求。
【拓展】be sure about/of意为“对……有把握,一定会”。
◆“keep+sth./sb.+形容词”意为“使……处于某种状态”,形容词作宾语补足语。
【拓展】keep doing sth.一直做某事;keep sb. doing sth.让某人一直做某事。
9.Never leave small children alone in a bathtub.
leave sb./sth. alone.意为“让某人/某物独自留下”。
【辨析】alone,lonely
(1)alone作副词,用于陈述客观事实,强调独自一人,没有别的同伴;作形容词,在句中作表语或后置定语,强调别无其他,处境安全孤立。
(2)lonely作形容词,意为“孤独的,寂寞的”,具有感彩,在句中作表语或前置定语,修饰某地时,意为“荒凉的,偏僻的”。
了解家里存在的安全隐患
How Safe Is Your Home
Your home is a safe place, right
Think again!
Many serious accidents happen in people's homes.
The kitchen and the bathroom are the two most dangerous rooms in the house. Why Because most accidents happen in the kicthen and the bathroom.
Can people prevent certain accidents Yes. Many accidents happen because people are careless. So be careful!
Safety tips for preventing accidents in the kitchen
·Don't use stand on chairs. Many people hurt themselves by falling off chairs.
·Don't use water to put out kitchen fires. Use baking soda or salt instead.
·Be careful with scissors and knives! Many people cut
themselves in the kitchen.
·Don't keep poisons in the kitchen.
·Be careful with fire and heat when you cook.
You don't want to burn yourself.
Some things catch fire easily.
Don't put them near the stove!
Safety tips for preventing accidents in the bathroom
·Never use electricity in the shower or bathtub. It can hurt you!
·It's easy to slip and fall on a wet floor. Be sure to keep the bathroom floor dry after you have a shower or bath.
Accidents happen suddenly. Never leave small children alone in a bathtub.
Safety tips for preventing accidents in the kitchen
Dos Don'ts
1 Read the lesson and complete the table.
·Don't stand on chairs.
·Don't use water to put out kitchen fires.
·Don't keep poisons in the kitchen.
·Don't put the things that are easy to catch fire near the stove.
·Be careful with
scissors and knives!
·Be careful with
fire and heat when
you cook.
Safety tips for preventing accidents in the bathroom
Dos Don'ts
·Never use electricity in the shower or bathtub.
·Never leave small children
alone in a bathtub.
·Be sure to keep
the bathroom floor
dry after you have a shower or bath.
2 Fill in the blanks with the correct forms of the words from the lesson. The first letter is given.
1.Tom won't drive to Beijing. He'll take a bus i ．
2.We should eat less s to prevent heart disease.
3.Take the k away. The little boy may cut himself.
4.A hot coal fell out the fire and b the shoes.
5.Grandma likes to sit in the sun. She enjoys the h of the sun.
urnt/urned
alt
nstead
nife
eat
3 Read the passage and fill in the blanks with the words in the box.
Be Careful!
Here are some of the most common accidents that happen at home：
Scalding—Hot water or drinks can scald you badly. Be careful when you smell your coffee and want to drink it right away!
________—Every year，quite a lot of children fall and hurt themselves. They fall off furniture or down the stairs. Climbing trees，high walls or fences can be dangerous，too.
________—Many people are badly burnt or even die in house fires. A cigarette can easily start a fire. People can be burnt by a hot iron or matches.
________—Glass causes the most serious cuts. So do knives and scissors. These things should be kept away from children.
Scalding Cuts Falls Burns
Falls
Burns
Cuts
4 Make a poster. What should you do to stay safe at home Give more tips for home safety.
Example：
Be careful with hot water.
Don't climb trees or high walls.
Be careful with hot water.
Don't climb trees or high walls.
Never play with fire.
Be careful with scissors
and knives.
Be careful with the electricity.
Home safety
活动小结
了解家里存在的安全隐患,注意用火用水安全。
关于家庭安全的一些建议有：
1._________________________________
2._________________________________
3._________________________________
4._________________________________
5._________________________________
Be careful with hot water.
Don't climb trees or high walls.
Never play with fire.
Be careful with scissors and knives.
Be careful with the electricity.
祈使句的用法
本句为祈使句的肯定形式。
其构成为：动词原形＋其他。
课文例句
Use baking soda or salt instead.
用小苏打或者盐代替。
本句为祈使句的否定形式。其构成为：Don’t＋动词原形＋其他。意为“不要……”。
use sth. to do sth.用某物做某事。
to do不定式表目的。put out熄灭。
课文例句
Don’t use water to put out kitchen fires.
不要用水去扑灭厨房的火。
活动小结
祈使句的肯定形式为：__________________。
祈使句的否定形式为：_________________________。
动词原形＋其他
Don’t＋动词原形＋其他
当堂检测
一、根据句意及汉语提示填写单词。
1. They seemed to be enjoying_____________(他们自己) at the party.
2. John is too young to use___________(刀).
3. The_______(热量) of the water broke the glass.
4. Take care not to_______(烧伤) your fingers.
5. Put some _______(盐) and pepper into the soup, please.
themselves
knives
heat
burn
salt
二、用括号内所给单词的适当形式填空。
1. The old woman earns money by________(sell) newspapers.
2. My foot ________(slip) and I nearly fell over.
3. This kind of fruit has a deadly_________(poison). You can’t eat it.
4. We all introduced_________(us) before the meeting started.
5. Jenny put her new phone onto the table _________ (careful).
selling
slipped
poison
ourselves
carefully
Unit 3
Lesson 16
掌握祈使句的用法
了解家里存在的安全隐患并且知道如何防范危险