冀教版九年级上册Unit 3 Safety Lesson16 How safe is your home？ 课件(共16张PPT)

(共16张PPT)
Don't keep poisons in the kitchen.
knife n.
[na f]
scissors n.
['s z z]
baking soda
[be k ]
['s d ]
salt n.
[s :lt]
poison n.
['p zn]
heat [hi:t ] n. 高温；炉灶
v. 加热
burn [b :n ] v. 烧伤；燃烧
burn- burned-burned 或 burnt-burnt
Be careful with fire and heat,
or you may be burnt.
Can people prevent certain accidents
Don’t use electricity with your wet hand.
prevent
[pr 'vent]
v. 预防、阻止
certain
['s tn]
adj.某些;某个
bathtub [‘bɑ:θt b]
n. 浴缸；浴盆
slip [sl p] v. 滑倒
What’s it for
It is used to prevent people from slipping.
Your home is a safe place, right
Think again!
Many serious accidents happen
in people’s homes.
We should be careful!
Safety tips for preventing accidents in the kitchen
Dos Don’ts
Read & Complete the Table
◆Be careful with ________
_______________
◆__________ poisons in the kitchen
◆_____________ fire and heat when you cook.
◆_________ on chairs
◆____baking soda or salt to ______ kitchen fires.
◆_________ water to put out kitchen fires
_______
扑灭
scissors and knives
Be careful with
Use
put out
Don’t stand
Don’t keep
Don’t use
Safety tips for preventing accidents in the bathroom
Dos Don’ts
Read & Complete the Table
◆ _____ use electricity in the shower or bathtub.
◆__________ keep the bathtub floor dry after you have a shower or bath.
Be sure to
Never
Safety tips for preventing accidents
Dos Don’ts
◆Be careful with scissors and knives.
◆Be careful with fire and heat when you cook.
◆Don’t stand on chairs
◆Don’t keep poisons in the kitchen
◆Be sure to keep the bathtub floor dry after you have a shower or bath.
◆ Never use electricity in the shower or bathtub.
你能由此了解祈使句的基本句型 吗？
◆Use baking soda or salt to put out kitchen fires.
◆Don’t use water to put out kitchen fires
祈使句
祈使句的结构及用法:
祈使句表示命令、请求、建议、或劝告等等。主语通常被省略，谓语动词用原形，句末用感叹号或句号，读降调。
Go and wash your hands.
去洗你的手。(命令)
Be quiet, please. (Please be quiet.)
请安静。(请求)
Keep off the grass.
勿践草坪。(禁止)
1. 肯定结构
① Do型 (即:动词原形(+宾语)+其它成分)。
Have a seat here，please. 请这边坐。
② Be型 (即:Be + 表语(名词或形容词)+其它成分)。
Be a good boy! 要做一个好孩子!
③ Let型(即:Let + 宾语 + 动词原形 + 其它成分)。
Let me help you. 让我来帮你。
2. 否定结构
① Do型和Be型的否定式都是在句首加Don’t构成。
Don’t forget me! 不要忘记我!
Don't be late! 不要迟到！
② Let型的否定式有两种:
“Don’t + let + 宾语 + 动词原形 + 其它成分”和“Let + 宾语 + not + 动词原形 + 其它成分”。
Don’t let him go. / Let him not go.别让他走。
③有些可用no开头,用来表示禁止性的
祈使句。No smoking! 禁止吸烟!
按要求改写句子。
1. You can’t eat in the classroom.
(改为否定祈使句) ______ ____ in the classroom.
2. Can you pass me some sugar, please (改为祈使句)
_____ ____ some sugar, please!
3.We will have dinner together.(改为祈使句)
______ have dinner together!
4. You should not touch the machine.(改为否定祈使句)
______ touch the machine.
Don’t eat
Pass me
Let’s
Don’t
Thank you!
See you!