高中英语人教版选修7 Unit 3 Under the sea【教学设计】

Unit 3 Under the sea
In this unit students learn about Killer whales and whaling in the early twentieth century, and about the decline in shark populations in the world today. The unit asks students to think about contemporary issues such as whether whaling should be allowed and whether sharks should be protected. The reading texts are in the forms of a fictional story, a diary entry and a retelling of an In it legend. The listening texts include a dialogue that show how to make a complain, radio news items and a radio interview.
【知识目标】
Let the Ss know how to read and can recite the following new words: etc.
Let the Ss know about some simple things under the sea.
【能力目标】
1. Make the Ss to talk about some things about the sea they learned before.
2. Enable students to discuss what will the text talk about.
【情感目标】
1. Stimulate the Ss’ interest in learning English..
2. To develop Ss’ sense of cooperative learning.
Multimedia
【教学重点】
1. To enable the Ss to learn about something of sea.
2. Pronounce the new words correctly and know relative usag21世纪教育网版权所有
【教学难点】　　　
To enable the Ss to say something about the sea use whole sentence.【版权所有：21教育】
Part 1 Warming up and reading
Step 1　Warming up
Q1: Have you seen any plants and animals that live under the sea?
Q2: Watch the photos and try to say the names of the animals or the plants .
Q3: Do you know about whales ? the killer whales
king of the sea, biggest carnivore (食肉动物) of the sea, killing all kinds of animals in the sea, even the huge blue whale, like tiger on land, working in a team.
Q4: What do you think is happening in the picture?
Step 2 Reading
Task 1: Fast reading
Read the passage as quickly as you can and the answer the questions.
1.Who is Old Tom? Who is the writer?
Old Tom is the name of killer whales.
And the writer is a whaler, called Clancy.
2.What is the first anecdote(轶事 )about?
And how about the second one?
Task 2 : Main idea
The passage is mainly about ____ parts.
Old Tom ______
the whalers to hunt the whales.
Old Tom ________
the whaler from the shark
3.The passage consists of _______ anecdotes written by Clancy. They are mainly about how Old Tom helped the whalers ____________ and__________________________
Task 3: careful reading
Read the text carefully and choose the best answer.
细节题
Old Tom throws itself out of the water and then crashes down to ___.
A. give the whalers the information about a whale
B. tell the whalers it is hungry
C. help the whalers catch the whale
D. inform the whalers to run away
2. Why did the men start turning the boat around to go home after the whale died?
A. Because they didn’t need a dead whale. B. Because they couldn’t find the whale’s body.
C. Because they knew that the dead whale wouldn’t float up to the surface for around 24 hours.
D. They had to do this because it was too late.
3. The relationship between Old Tom and the whalers is ___. 21·cn·jy·com
A. friendly　　 B. cruel C. serious D. tense
推理判断题：
4.We can infer from the text that____.
A. The killer whales may be trained by the whalers.
B. The killer whales want to help man catch the whales themselves
C. The killer whales need no training for helping the whalers
D. The killer whales want to eat the whales after killing them
主旨大意
5. What happened to James after he was washed off the boat?
A. He got hurt by a shark.
B. He was abandoned by the other whalers and felt terrified.
C. He dropped his hope and was nearly dying.
D. He was held up in the water by Old Tom and rescued.
Accident
James was ___________ the boat
Situation
1. The sea was ______ that day and it was ________to handle the boat. The ______ were carrying James further and further away .
2. Suddenly there was ________ over there.
Feeling
He was _________of being abandoned by us.
Help
Old Tom won’t let it _______James.
James was firmly ________in the water by Old Tom
Result
James was __________ into the boat.
Word Filling(填词)
Although the killers were f_____hunters , they never h _____ or a_______ people. In fact , they p _______ them. However, whales are now in d______ . They are dying o___.
Step 3 Discussion
Whales are in danger. Why? To protect them, what should we do?
Then complete the composition.
Useful expressions:
We should….
We had better….
It is a good way to …
As we all known, Whale is one of the oldest species on the earth. I think it’s important to protect whales. 【出处：21教育名师】
As far as I’m concerned, we can do some things we can do to protect them.
First,

Second,
What’s more ,

In a word, man has done much harm to whales. It’s time for us to do something to protect them. No buying, no killing!
Part 2 Language Points
Step 4 Language points
1. annual adj.每年一次的；一年一度的
annual =yearly n.年刊；年鉴
类似用法： daily n.日报；
weekly n.周报；
monthly n.月刊
2. witness
(1) vt. 亲眼看到
Did you witness the accident? 你亲眼看到那场事故了吗？
(2) vi. 作证; 证明
witness to sth. / doing sth.
He witnessed to having seen the man enterthe building.21教育网
他作证说他看到那个人进入大楼的。
(3) witness n. 目击者; 证人
She was called as a defense witness.她被传唤作被告证人。
EX: The accident happened in the midnight, so few people _______ it.21*cnjy*com
appreciated B. witnessed C. monitored D. discovered
3. On the afternoon I arrived at the station, as I was sorting out my accommodation, I heard a huge noise coming from the bay.在我到达捕鲸场的那个下午，正当我准备膳宿时，我听到一声巨响从海湾传来。
as, when和while
1) as 强调主从句中谓语动词所表示的动作同时发生。 从句表示“随时间推移”连词能用as，不用when 或while。
As the day went on, the weather got worse. 日子一天天过去，天气越变越坏。
2) when 可表示瞬间、时间段，主从句动作同时发生，也可以先后发生。当从句的动作发生于主句动作之前，只能用when 引导这个从句，不可用as 或 while。　　
When you have finished your work, you may have a rest.
3) as, when 引导短暂性动作的动词。
Just as / Just when / When I stopped my car, a man came up to me. 　
4) while 用于同时进行的两个延续性动作相伴发生，常对同类动作进行对比。
＊________ you have finished your work, you may have a rest.
＊____________ I stopped my car, a man came up to me.
＊____ the day went on, the weather got worse.
＊____________ was walking down the street, I met an old friend.
4. “Come on, Clancy. To the boat”, George said as he ran ahead of me.
1) 表示劝说，不耐烦，催促 Come on, we’ll be late for concert.【来源：21·世纪·教育·网】
2) 开始 The rain has just come on.
come about 发生
come across 偶然遇见
come forth 出来，涌现
come out 出版，（花）开
come through （电话）接通
come up 走近，上升
come to 总计
come up with 赶上，补充
come about , come through, come out , come up, come to , come across2·1·c·n·j·y
The cost of the journey _______ 3000 yuan.
How did the accident ___________ ?
When will the book __________ ?
I _____________ my teacher in the street yesterday .www.21-cn-jy.com
The seeds haven’t __________ yet .
The old man ___________ the World War I.
5. flee – fled – fled
(1) vt. flee 逃离 They were forced to flee the country.2-1-c-n-j-y
(2) vi. flee from 逃避；逃跑
The prisoner attempted to flee from theprison, but he failed.
The alarmed people fled from the fire. 恐慌的人们从火里逃出。
She ______ (过去式) from the room in tears.
2. The robbers tried to _____ (逃跑), but they were caught.
6. He let it go and the harpoon hit the spot. Being badly wounded, the whale soon died.
辨析：wound, injury, hurt, harm与damage
wound 是战斗中刀枪的创伤、伤口
His brother was wounded in that battle .
injury 是平时的大小创伤和伤害
He got serious injuries to the legs at work . He got his finger injured .
hurt 是指精神上的伤害和肉体的伤痛。
The hurt to his feelings is more serious than the hurt in his body .
harm “伤害”指使有生命或者无生命的东西不再完整、美丽，或者具有原来的价值。
Smoking a lot of cigarettes can harm and even kill over a long period of time .
damage “车辆、船只、房屋”等的损坏。 The bus was badly damaged when it hit the wall . This storm did great harm / damage to the crops.
7. drag
Why drag me in? 干嘛把我拉扯进去？
drag sb. out to a concert 硬拖某人去听音乐
drag the negotiation out for three months 把谈判拖长到三个月
1.She had to _____ her child away from the toy shop.
2. He got up and ________ his chair toward the table.
3. I really had to _____ myself out of bed this morning.
4. The horse was ________ a heavy load.
8. urge v. 驱策/v. 极力主张
He urged his horse forward.
The teacher urged that all students not carry MP3 players in class.
He has an urge to become a film star.
urge sb. to do sth.
催促/力劝某人做某事
urge that … + (should) 动词原形
He _______________________ (力劝所有学生) take part in this activity.
(2) I _____________________________ (劝他尽力) to finish his homework.
9. abandon
We had to abandon the car.
By the time the rebel troops arrived, the village had already been abandoned.
abandon one’s friend 背弃朋友
abandon a bad habit 革除恶习
abandon one’s hope 放弃希望
abandon one’s idea 放弃主意
Part 3 Grammar
Step 5 Grammar
V-ing的被动形式
如果动词-ing形式的逻辑主语为所表示的动作的承受者,动词-ing形式要用_________,动词-ing形式的被动语态有一般式与完成式之分。
　语态
时态
被动语态
一般式
being done
完成式
having been done
动词-ing形式的被动式在各句中作什么成分?
1. So being killed by sharks was a common occurrence.21教育名师原创作品
2. He didn’t mind being left at home.
3. That building being repaired is our library.
4. Being protected by a thick wall, they felt they were quite safe.
5. Having been given such a good chance, how could she let it slip away?
动词-ing形式的被动式在句中作何种成分？
动词-ing形式的被动式, 可在句中作主语, 表语, 宾语, 宾语补足语, 定语和状语, 但不能单独作谓语, 其完成形式having been done, 多在句中作状语。
Complete the sentences below with the passive -ing form of the verbs in brackets.
① James was afraid of _______________ (attack) by sharks.
② _____________ (hold up) in the water by Old Tom, James was confident he would survive.
③ _______________ (include) in the hunt was a great thrill for Clancy.
④ ____________________ (accept) by the whalers, the killers were able to get a good feed from the whale.
⑤ Clancy didn’t mind __________ (tell) what to do.
⑥ _______________ (help out) by the killer whales, the whalers were able to make a successful kill.
⑦ The children enjoyed ___________ (take) to the aquarium.
⑧ It seemed the sea lion didn’t mind
__________________ (photograph) with the tourists after all.
⑨ “In fact, the chances of anybody _______________ (swallow) by a whale are rather low,” said the researcher.
此外, 动词-ing形式的被动式还可以在句中构成复合宾语。如：
You’ll find the topic being discussed everywhere.
你会听到到处都在讨论这个问题。
He often watched the boats being unloaded.
他常常看轮船卸货。
As we approached the village we saw new houses being built.
走近村子时我们看到正在盖新房。
而且在want, need, deserve, require等动词后, 尽管表示的是被动含义, 我们却用动词-ing形式，也可以用不定式的被动形式来替换。如：
The blackboard needs cleaning.
= The blackboard needs to be cleaned. 黑板需要擦干净。21·世纪*教育网
The broken window wants repairing.
= The broken window wants to be repaired.? 那个破窗户需要修理
在worth这个形容词后情形也是这样:
Her method is worth trying. 她的方法值得试一下。
2) 完成式表示动名词的动作发生在谓语动作之前。
He prided himself on having never been beaten in class.
用所给词的适当形式填空。
1. I appreciated ___________________________ (give) the opportunity to work in your company two years ago.【来源：21cnj*y.co*m】
2. Our neighbor came close to __________ (kill) in a traffic accident the other day.
3. While shopping, we sometimes can’t help _______________ (persuade) to buy what we don’t really need.
4. It made me upset to hear the news of his _____________________________ (fire) from that good job.
5. The foreign friends you referred to are looking forward to ____________ (show) around our newly built language lab.
Part 4 Using Language
Step 7 Reading II.
Can you name the following creatures? Try to use adjectives to describe them.
Are they beautiful?
Where do you think we can find them?
You can find them at an aquarium or at the bottom of oceans.21cnjy.com
Let’s enjoy the writer’s experience down into the depths of a sea.
Read the text fast and try to number the paragraph topics in the correct order.
Topic
Paragraph number
colors and shapes
?
dangers
?
reflecting
?
the reef’s edge
?
a final thought
?
some sea creatures
?
What is the first thing he became aware of under the sea?www-2-1-cnjy-com
What did the shapes of corals look like?
Match the information about the creatures.
Sea anemone
Sea-slug
Parrotfish
Anemone fish
Sea-star
Turtle
Angelfish
Was there anything that made him feel frightened besides the wonderful creatures ? What were they?21*cnjy*com
Yes. There were dangerous creatures. He didn’t want to get close to the eel, the giant clam and reef sharks.
Step8 Writing
为了丰富学生的生活, 你校学生会将举办一次音乐周活动。请你以组织者的身份写
一个书面通知。有关内容如下：
时间: 5月第一周
活动: 1. 演唱歌曲: 流行歌曲
2. 器乐演奏: 古典和民间音乐
3. 音乐比赛: 听歌曲片段, 然后猜出处
地点: 届时通知
参加者于4月20日前报名。
One possible version:
Dear students,
The Students Union has decided to organize a music week. It will be held in the first week of May. The activities include singing pop songs and playing classical and folk music. Bring your own musical instruments, please. A music contest will be included, too.
The students taking part in the contest will listen to part of a song or a piece of music, and
then guess where it comes from. If you’d like to take part in the music week, please come
and sign up for it before April 20th. The place for the activities will be announced later.
Come to the great fun!
Students Union
Step9 Homework
Finish the exercises on Page 68-69.
略。