(共29张PPT)
Unit 3 Safety
Grammar
Building Your Vocabulary
Fill in the blanks with the correct forms of the given words.
Ⅰ
training
hang
expect
earthquake
knife
shoulder
necessary
heat
salt
Complete the passage with the correct words.The first letter is given.
Ⅱ
It is not safe when people are not c________. S________ accidents often happen and injure many people.A lot of people lose their lives. For example, many people drive after drinking. They don't care about the r________．Society must work together to p________drunk drivers f______harming others and themselves.
rom
areful
erious
ules
revent
Grammar in Use
A new library will soon open in your school. Help the librarian write a notice to the students.
Notice to students
1．Show your library card to the librarian.
2．Don't talk in the reading room.
3．Never… .
4．Please… .
5._________________________________
6._________________________________
7._________________________________
8._________________________________
9._________________________________
10.________________________________
A new library will soon open in your school. Help the librarian write a notice to the students.
Notice to students
1．Show your library card to the librarian.
2．Don't talk in the reading room.
3．Never .
4．Please .
5._________________________________
6._________________________________
7._________________________________
8._________________________________
9._________________________________
10.________________________________
eat in the reading room.
be careful with books.
Don't make or answer the phone.
No smoking.
Do not fight.
Don't tear the books.
Don't make noise.
Please return books on time.
[探究] 祈使句 的用法
用于表达命令、请求、劝告、警告、禁止等的句子叫作祈使句。
祈使句因对象(即主语)是第二人称,所以通常都省略。祈使句的动词都为一般现在时, 句末则使用句号或叹号, 读降调。
什么是祈使句？
祈使句的肯定句式：
Do型(即：行为动词＋宾语＋其他)
eg： Stand up, please.请起立。
Let型(即：Let＋宾语＋动词原形＋其他)
Let me help you.让我帮助你。 Let's go home. 让我们回家吧。
Be型(即：Be＋表语＋其他)
Be quiet, please.请安静。
[拓展] “Let's＋动词原形” 结构, 表示提建议, 可与 “Shall we＋动词原形” 或 “Why not＋动词原形” 相互转换。
eg： Let's go on a picnic.让我们去野餐吧。
＝Shall we go on a picnic？
＝Why not go on a picnic？
祈使句的否定句式：
Don't＋动词原形
Don't open the window. 不要开窗户。
Never＋动词原形
Never give up! 千万不要放弃！
No＋名词/动名词＋其他
No smoking！禁止吸烟！
Let引导的祈使句的否定形式是：
Let＋宾语＋not＋动词原形＋其他成分; 也可在let前加Don't.
[注意] Let's 开头的祈使句，必须在Let's 后加not。
eg：Let him not play.＝Don't let him play.别让他玩。
Let’s not tell him about it.咱们别告诉他这件事。
祈使句的反意疑问句形式：
1. 一般由will you/won’t you构成反意疑问句。
eg： Don’t tell anyone about it, will you
不要告诉任何人这件事, 好吗
2. Let’s的反意疑问句用shall we; 而Let us/me的反意疑问句用will you或won’t you。
eg：Let’s go to the park tomorrow, shall we
Let the two kids play the basketball, will you
[拓展]祈使句常用的两个重要句型：
1. “祈使句+and+表好结果的陈述句”用来叙述肯定的条件。
eg： Hurry up and you will catch the train.
快点, 你就会赶上火车。
可以转换为含 “if ”引导的条件状语从句的复合句。
If you hurry up, you will catch the train.
2. “祈使句+or+表坏结果的陈述句”用来叙述否定的条件, or表示“否则, 要不然”;
eg： Hurry up, or you will miss the train. 快点, 否则你会错过火车的。
这一结构可以转换为含“if”引导的条件状语从句的复合句。
If you don’t hurry up, you will miss the train.
[链接中考]
1.(湘西)—_______ run in the hallways, Mike.
—Sorry, Ms. Clark.
A. Don’t B. Please C. No
2.(上海)Please ________ your exam papers once again before handing them in.
A．going over B．went over
C．go over D．to go over
3.(扬州)—Jim, __________ read books while you are walking in the street. It's very dangerous.
—OK, thank you.
A．don't B．doesn't C．won't D．can't
4.(梅州)________play with fire. ________with fire is dangerous.
A．Don't;Playing B．Not;Playing
C．Don't;Play D．Not to;To play
5.(长春)________along the street, and you can find the hotel on your right，next to the market.
A．Walk B．To walk C．Walks D．Walking
6.（黄石）)—I'm leaving for Xisha Mountain this afternoon.
—________you have packed everything.
A．To be sure B．Been sure
C．Being sure D．Be sure
7.(眉山)________swim alone in the river, ______
A．Not; don't you B．Not; do you
C．Don't; will you D．Don't; shall we
8.（徐州）—Please don't throw paper on the ground.
—________, I won't.
A．Excuse me B．That's all right
C．Sorry D．It doesn't matter
9.(上海)－Tom, here to carry the luggage upstairs for me,will you
－All right.
A.come B.came C.coming D.to come
10.（凉山州）When I want to go out to play with my friends,my mother always says, “ at home. Don't waste your time.”
A. Stay B. Stays C. To stay D. Staying
Listening and Speaking
Listen to the dialogues and tick the correct answers.
Ⅰ
1．What does Tom mean
□He is going to fall. □He will be fine.
2．What happened to the man
□He fell off the ladder. □He fell off the fence.
3．Why is Tony driving so fast
□He is rushing to the hospital.
□He is rushing to the airport.
√
√
√
What would you say if the following things happened
Ⅱ
1．Someone is climbing up high.
2．Your friend often plays computer games through the night.
3．There is heavy traffic, and a little boy runs into the street
to get his ball back.
4．The floor is wet, and someone is walking by.
5．A man is smoking in the non smoking area.
Stop running after the ball. The cars may hit you.
It's bad for your health. Everyone needs enough rest.
It's dangerous. You may fall down.
Be careful! It's easy to slip and fall on a wet floor.
No smoking! You are harming the people around you.
Putting It All Together
Look at the rules for different groups of people. Match the rules with the correct groups．
Ⅰ
A.Rules for pedestrians
B．Rules for cyclists and
motorcyclists
C.Rules for drivers
·Always wear a seatbelt.
·Follow the traffic signs and rules.
·Don't drive after drinking.
·Don't make phone calls while driving.
·Walk on the sidewalk.
·Cross the street at the crosswalk.
·Pay attention to the traffic lights.
·Don't read while walking.
·Always wear a helmet.
·Check your bicycle or motorcycle often.
·Don't play with others while riding.
Make a poster
Ⅱ
In a group of four, make a poster about how to prevent accidents inside or outside school. What should students do to be safe What should they NOT do
Be careful when you
ZOOM down the waterslide,
CLIMB up the mountainside,
RACE on a bike ride.
To take an ambulance is not a happy ride.
Have fun, but please take care!
Be careful when you
GO at the green light,
TURN your bike left or right,
JUMP from too high a height.
So don't be careless when you
go to ride your bike.
Have fun, but please take care！
Please Take Care!
GOOD JOB
