外研版八年级英语上册课件 Module 12 Unit 3 (共46张PPT)

(共46张PPT)
Unit 3
What shall we do or not do if an earthquake happens
Dos
Stay in a small room, such as kitchen
or bathroom.
2. Hide under the table or bed. If you haven’t time to escape, you may stand close to the inside wall with some things covering on the head.
3. Stay in the open air, keep off the tall building and go to the fields without trees.
Don’ts
1. Be close to the outside wall.
2. Stay on the balcony.
3. Jump out of the tall buildings.
4. Use the lift.
祈使句用来表达叮嘱、劝告、希望、禁止、警告、请求或命令等。祈使句最常用来表达命令。
Go and wash your hands.
快去洗手。 （命令）
Be quiet, please.
请安静。 （请求）
Be kind to our sister.
要对我们的妹妹友善。 （劝告）
Watch your steps.
走路小心。 （警告）
No littering.
不要乱扔垃圾。 （禁止）
Don’t forget to take an umbrella.
不要忘了带雨伞。 （叮嘱）
祈使句的特点：
(1) 祈使句一般没有主语，说话的对象都是第二人称“你”或“你们”，所以也可以理解为省略了主语you。
(2) 以动词原形开头，无时态和数的变化。
(3) 祈使句的否定形式是在动词原形前加don’t。
Please close the door.
请把门关上。
Sit down, please.
请坐。
(4) 在表达请求时，可以加上please; 表达比较强烈的语气时，可以用感叹号。
Come to my office.
到我办公室来。
Stop! 停！
Hurry up! 快点！
Please don’t do it.
请不要这么做。
Don’t be late again.
不要再迟到了。
Don’t worry. Be happy.
不要担心，高兴点儿。
Don’t bring any food or drink into the lab next time.
下次不要把任何食物或饮料带到实验室来。
Don’t forget to turn off the lights.
不要忘记关灯。
Don't stand up.
别站起来。
Don't be careless.
别粗心。
Don't let them play with fire.
别让他们玩火。
(5) Let 构成的祈使句往往用于提出建议。
Let’s go to school together.
咱们一起上学去吧。
let型祈使句有两种否定形式： 1) Let＋宾语＋not＋动词原形＋其它
Let him not go.
别让他走。
Let's not waste time.
咱们不要浪费时间了。
2) Don’t＋let＋宾语＋动词原形＋其它
Don’t let her go there. 别让她去那儿。
(6) 在请求、 命令和口号中，常用无动词祈使句，它实际上是省略了动词，从而使句子更简洁有力。如：
Just a minute, please!
请稍等！
口 诀
下面的口诀总结了祈使句的一般规律。一起来看看吧!
祈使句, 有特点,
动词原形摆在前,
否定句式也不难,
Don't 放在最前面,
其它一律都不变。
It’s an important meeting. _________ (not, be) late.
___________ (not, make) any noise! Your mother is sleeping.
__________ (not, speak) with your mouth full of food.
_________ (not, talk) and _______ (read) aloud.
Don’t be
Don’t make
Don’t speak
Don’t talk
read
Fill in the blanks.
5. ___________ (not, leave) your homework
for tomorrow, Larry.
6. _______ (look) out! A car is coming.
7. _______ (give) us ten years and just see
what our country will be like.
8. _________ (not, let) the baby cry.
Don’t leave
Look
Give
Don’t let
1. 咱们一起玩吧！
2. 请不要迟到。
3. 回答这个问题。
4. 不要这么吵闹。
Let’s play together.
Don’t be late, please.
Answer the question.
Don’t make so much noise.
Translate these sentences.
5. 上课安静。
6. 不要随处乱扔垃圾。
7. 不打架不骂人。
8. 让我看一看吧。
9. 对同学友好。
Be quiet in class.
Don’t throw rubbish everywhere.
Don’t fight or say rude words.
Let me have a look.
Be friendly to classmates.
1. can 可以表示对现在或将来的推测，意为“会，可能”。通常用于肯定句和疑问句。用于否定句时，can’t 表示“不可能”；用于否定句时，can 比 could 表示的“不可能性”更大。
Who sent the present Can it be your brother
It can’t be my brother. He is still in France.
情态动词表示推测
2. could 也表示对现在或将来的推测，意为“会，可能”。
could 可以用于肯定句、否定句和疑问句，表示某事有可能发生或可能是事实。
He could be in pain.
That could be harmful.
3. must也表示推测，意思是“肯定，一定”，一般只用于肯定句中，在否定句中则用can’t， 意思是“不可能”。如：
You must be tired after walking so long.
You must be a doctor!
He must have read the book several times.
1.— Is that your teacher
— That _____ be Mr. Wang. He has
gone to Japan with his wife.
【2012甘肃鸡西市】
A. can’t B. mustn’t C. may not
A
2. — You _____ be happy with the strong
public support you’ve received.
— Yes, you’re right. I’m really excited. 【2012湖北】
A. may B. can C. must D. need
C
【2013 湖北黄冈】— Who’s the man over there Is it Mr. Black
—It ______ be him. He’s much taller.
A. may not B. can’t
C. will not D. mustn’t
【解析】句意：那边那个人是谁？是布莱克先生吗？一定不是他，他高多了。情态动词表推测：“一定” 用must，“可能”用might、may、could；“一定不”用can’t。故选B。
【2013湖南株洲】— Oh, it's raining hard.
— Be careful! The road _____ be wet.
A. could B. must C. might
【解析】could和might表示没有把握的推测，must表示有把握的推测。根据上句句意“正下大雨。”，可推测“路肯定很湿”。故选B。
Underline the correct words to complete the first aid instructions.
Get / Do not get medical help immediately.
Ask / Do not ask them where the pain is.
Lift / Do not lift them because you may drop them.
Keep / Do not move them to a more complete place.
Complete the conversation and supposed you are Tony or Lingling to retell what happened.
Mom: What happened, Tony / Lingling
Tony / Lingling: …
Mom: What can we do to help him
…
Complete the news report with the correct form of the words in the box.
clear inside power rock trouble warn
Information is coming in that there could be _______ because of heavy rain in the north. The government is ________ people about __________ falling on mountain roads. Some roads have a lot of rocks on them, but people are trying to _______ them quickly. In some places there is no ________. And people must stay ________ to keep away from falling rocks.
trouble
warning
rocks
clear
power
inside
There are problems everywhere because of rain.
The government is warning people about an earthquake.
Some roads in the mountains have a lot of rocks on them.
People are trying to clear the rocks off the roads.
There is no problem with power.
T
T
F
F
F
Listen and complete the sentences.
We were having ________ at home when the earthquake happened.
The room started to _________.
Father shouted to everyone to get under the ___________.
We could not get out of the room because the __________ would not open.
My father called for help on his ___________.
People came to help us and we left our ______.
dinner
shake
kitchen table
door
mobile photo
flat
Have you ever heard about the tsunami which happened in the Indian Ocean in 2004
The tsunami wave devastated nearby areas where the wave may have been as high as 25 meters tall and killed nearly 300,000 people from nations in the region and tourists from around the world.
Tilly Smith, the 10-year-old British girl, who was called as “Angle of the Beach”, saved 100 tourists from a Thai beach hit by the tsunami in 2004 and has been named Child of the Year by readers of a French children’s newspaper.
Read the passage and choose the correct answer.
( ) 1. What is the best title for this passage
a) 2004 Asian tsunami.
b) A girl saves tourists from tsunami.
c) Underwater earthquakes.
( ) 2. What did Tilly notice
a) Water coming to the beach.
b) People watching the water.
c) Bubbles in the water.
b
c
( ) 3. What does her teacher think of Tilly
a) She is lucky.
b) She does not do silly things.
c) She is a clever student.
c
Read again and answer the questions.
Who saved one hundred other tourists in the 2004 tsunami
A ten-year-old girl.
2. How did she save those people？
She warned them that a tsunami, a huge ocean wave, was on its way across the sea.
3. Why did she know the tsunami would
happen
Because she learned about underwater
earthquakes at school only a few
weeks earlier.
Special buildings in Japan
The Yokohama Landmark Tower
横滨名胜大厦
Earthquakes and tsunamis are common in Japan, but Japan is the best-prepared
country in the world. Why
In Japan, the building codes (建筑规范) have long been very strict on specific
matters like how much a building may
sway (摇摆) during a quake.
Over the years, Japan has spent billions of dollars developing the most advanced technology against earthquakes and tsunamis.
1. Tallest building in Japan.
2. Currently has the world's second fastest elevator - traveling at 750m / min.
3. Two tuned dampers (调谐阻尼器) are located 282m above ground level.
Facts about the Yokohama Landmark Tower
4. The Yokohama Royal Park Hotel occupies floors 49 to 70 of the building, making it Japan's highest hotel. The lower 48 floors are used as offices and retail.
5. The building is the second tallest building and 4th tallest structure in Japan, standing 296.3m high. Work on the building was finished in 1993.
Other special buildings in Japan
可漂浮的 抗震住宅
弹性大楼
高层抗震大厦
廉价抗震房
Making a poster about preventing accidents at school
Making a list of accidents that can happen at school. Make a poster about preventing accidents at school using must / mustn’t.
Talk with your classmates about the knowledge of how to survive or protect yourself in an accident. Then try to make a role play.