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人教版高一下册英语必修2教案《Computers》

编辑:

2016-03-14

1. Learn and master the words , phrase and sentence patterns above

2. How to make the students understand the text better .

Teaching Difficult Points:

1. Master the difference between the following phrases:

No matter wh- / wh-ever in case / in case of

2. How to Understand the texts completely .

Teaching Methods:

1. Fast reading to let the students get the general idea of the text .

2. Question-and-answer activity to let the students get the detailed information in the text.

3. Making sentences to have the students master some language points .

Teaching Aids:

1. a tape recorder 2. a blackboard

Teaching Procedures:

Step I . Greetings.

Step II. Presentation

T: As we know that life today is quite different from life in the past. Here is a example . (using a cellphone ) Look, what's this ?

Ss: A cellphone.

T: Have you ever used one ?

Ss: Yes / No.

T: Why are not the students allowed to use cellphones? Let's read the text "Life

On the go"

Step III. Reading

Read the text quickly to get its general idea. Then answer the questions on the Bb.

1. Do schools agree to use phones in schools ? How about their parents ?

( Some schools don't agree phones are used in school. Nor do their parents . They worry that their children will spend too much time and money on phone calls )

2. What does Wang Mei thind is the most useful invention ?

( She thinks the cell phone is the most useful invention .)

Read the passage again to find out the main idea of the paragraphs.

Suggested answers:

Par. 1: Wang Mei is an example of Chinese teenagers who have cell phones .

Par. 2.: Cell phones can be used for many things.

Par. 3 : Cell phones also cause problems .

Par. 4 : There are several reasons why teenagers like cell phones .

Par. 5 : Wang Mei explain why she likes her cell phone and what she used it

For .

T: Now you have known the general idea of passage and the main idea of each paragraph. Now read Paragraphs 2,3 and 4 to understand the details and fill in the blanks on Page 60. ( After some minutes, teacher asks three students to read the answer.

Suggested answers:

For example: Cell phones are used as cameras, radios and electronic calendars,

And to send e-mail, surf the Internet, play games and enjoy music.

In school: disturb students and teachers.

At home: spend too much money on phone calls.

Reasons:

1. They need to stay in touch with friends and family.

2. They can call for help in case of an emergency.

3. They think the cell phone is a way to have fun and be cool.

Step IV. Language points

1. "life on the go" 移动人生

live a happy / hard / busy ... life

on the go 是介词短语作定语后置, 意思是"忙个不停";"四处奔走";

"跑来跑去"的意思。

Her children keep her on the go all day.

We can't keep small children still, they are always on the go .

介词 on 在这里表示"处于。。。。。。情况之中"

They are on a visit to China .

He's gone to HK on business.

The go 可以表示"流行,时髦"常用于口语中。

Hip hop has become quite the go among youngsters.

Hula hoop seems to be coming back to the go at present.

2. throughout the world = all over the world

all through the day = during the day / the whole day / all day long

3. more than (1)超过, 多于 (2)不只是,非常

a. He has more than twenty yuan with him.

b. By 1993, the number of the deer at the center had increased from 20 to more than 200.

c. The travel to Beijing is more than sightseeing.

d. He is more than our teacher and he is our friend.

e. Bamboo is used for more than building.

f. Modern cellphones are more than just phones----they are being used as

Cameras and radios, and to send e-mail or surf the Internet.

g. He is more than happy.

More....than 与其说。。。不如说。。。

h. He is more like a spear than anything else.

i. He is more diligent than clever.

j. Tom is more frightened than hurt.

No more... than... 并不比。。。更。。。,都一样不

k. You are no more beautiful than I .

l. The train ticket is no more cheaper than the plane ticket.

m. Kate runs no faster than Jane.

n. The book on travel is no more interesting than the book on food.

No more than 仅仅, 只不过

a. He is no more than a little boy, and don't be angry with him.

b. There are no more than 5 students left in the classroom.

c. He knows no more than food in his world.

Not more... than...不如。。。 not more than 至多,不超过

o. This dictionary is not more useful than that one.

p. In my pocket there is not more than 5 dollars.

4. be used as / be used to do / be used for / be used by

a. Computers shouldn't be used as a tool for playing games.

b. Computers can be used to work out complicated mathematical problems.

c. Pens are used for writing./ Wood can be used for making desks and chairs.

d. This bed is used by my pet dog.

5. add vt .(1)加;增加;添加 add...to... (2)补充说道

add to vi. 增添;增加 add up to 总计达

a. He added some salt to the soup.

b. Add 5 to 3 and you have 8.

c. The fire is going out; will you add some wood to it?

d. "You go first." "I'll come later," he added .

e. The music added to our enjoyment.

f. The lights add to the beauty of our city.

g. The expences add up to 95 yuan.

5. latest / lately / late

d. Everyone likes to read the latest news.

e. Mr. Smith's latest novel has been published.

f. What have you been busy with lately?

g. You are late again . Don't come late next time.

6. remind vt + sb of / about sth +sb to do sth +that 表提醒

+ sb of sth +sb of doing sth 表使。。。想起

a. The Pictures reminded them of the days when they lived in the same

Room.

b. The story reminds me of my school days . / of having done wrong when I was

Young.

c. Please remind me to take medicine tomorrow morning.

d. She reminded him that he had it before. / that they had met each other

Before.

7. dare mod. v / vt

a) He does not dare to take it home. = He daren't take it home.

b) Do you dare to ask him ? = Dare you ask him?

8. no matter what 与 whatever

a. No matter where you go, you'll find new friends. =

Wherever you go, you'll find new friends.

b. Whatever he says, we can't believe him =

No matter what he says, we can't believe him.

c. Whatever he says isn't true.

d. I will do whatever I can to help you.

e. Give the book to whoever wants it.

8. in case of+名词/ 短语(介);假使, 要是。。。 的话;

in case+从句 也可单独使用,置于句尾,意思是(1)要是。。。的话;万一。。。的话 (2) 以防, 免得

a. In case of fire, ring the alarm bell.

b. Having a cellphone also makes us feel safer, since we can call for help in case of an emergency.

c. In case he comes here, tell him that I will go to meet him.

d. Put on the coat, in case it snows .

e. Please take an umbrella in case it rains.

f. It may rain; you'd better take an umbrella in case.(以防万一)

In any case 不管怎样;In any case , parents shouldn't beat their children .

In that case 既然这样/那样,用作状语

In that case , you have to wait .

in the case of 就。。。来说; 至于。。。

In the case of computer, it is just so expensive.

10. I should be home in about ten minutes. ( 表示可能性或推测)

He should have arrived there by now. 他现在应该到那了。

11. I think it's the most useful invention ever.(见第四点)

(1) 用于肯定句中,比always 意味稍强。 永远;总是;一向

He worked as hard as ever when he got a headache.

The old woman repeated ever the same words.

(2) 用于条件句/一般疑问句/否定句中,译成:曾经;在任何时候 Did you ever meet him while you were in London?

Have you ever heard of him?

If you ever see him, please give the pen to him.

Nothing ever happened here.

(3) 强调特殊疑问句中的疑问词,相当于on earth 究竟,到底

Where ever did you see Mr. Read ?

How ever did I forget it ?

Who ever can it be?

(4) 与比较级、最高级连用 译成:比以往任何时候

It's the nicest thing ever. 这是空前的最好的东西。

He is angrier than he has ever been .

11. collect money for ../ raise money for

12. effect (c. u ) 效果; 作用; 影响

a. It had such a bad effect upon him.

b. The effects of the medicine were good to the patient.

c. It may be the effect of the illness.

Have an effect on 对。。。产生影响

It had an immediate effect on his thinking.

Take effect 生效;开始发生作用

The new law will not take effect until July.

The medicine is going taking effect.

Homework: 1. Recite the words in Unit 9.

2. Finish the exercises on Page 135.

Blackboard Design:

Life on the go Language points:1. more than 2. remind 3. allow4. no matter what 5. in case of / in case ....

P.S. __________________________________________________________

__________________________________________________________

__________________________________________________________

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The Fourth Period

Teaching Aims:

1. Do some reading and get the general idea of a new paragraph.

2. Do some writing.

Main Points:

1. How to guess the meanings of the new words.

2. How to train the students' writhing ability.

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