高二英语computers教案2

Unit3 Computers Book2
Period 1 Words and expressions
Liu Juan
I .Content :
New words and expressions in Unit 3
II .Teaching aims:
Master the new words and expressions.
III.Main points:
1.Pronounce the words and phrases correctly
2.Try to remember the spelling and Chinese meaning
IV .Difficult points
Use the words freely
V .Teaching steps
STEP1. Pronunciation correcting
Read after the teacher or the tape twice. Then the teacher asks the students to read words by themselves.
STEP2. Skills in memorizing the new words
The teacher analyses the structure and usage of the new words briefly.
STEP3. Consolidation of the words and expressions
★单词翻译
1.____________ vt.计算
2. ____________ n.计算器
3. ____________n.笔记本
4. ____________a.简单的
5. ____________n.工艺；技术
6. ____________a.科技的
7. ____________n.革命8. ____________a.宇宙的9. ____________a.数学的10. ____________a.人造的11. ____________n.智力；智能12. ____________ad.完全地13. ____________n.网络14. ____________ad.真实地15. ____________n.种族
16. ____________n.诞生17. ____________n.优势；优点18. ____________n.缺点
19. ____________v.打字20. ____________vi.不同意21. ____________n.选择
22. ____________n.原料23. ____________ad.亲自地24. ____________vt.创造
25. ____________n.教练26. ____________n.步骤；动作27. ____________vi.出现
28. ____________n.脑29. ____________n.拖把30. ____________vi.徘徊
★词组
1.___________________共有；共用
2. ___________________依……看来
3. ___________________走过；过去
4. ___________________处理；安排；对付
5. ___________________在某种程度上
6. ___________________弥补；整理
7. ___________________毕竟8. ___________________在……的帮助下
9. ___________________看守；监视
★单词拼写
1. Credit cards have brought about a ________(革命) in people‟s spending habits
2. I‟m sorry to say that I ______ (彻底地)forget about it.
3. Look before leap. Don‟t be ____________(头脑简单的).
4. With the development of _________(技术), more practical machines have been invented.
5. In basketball matches, American players have an obvious_________(优势) in height.
6. P________ speaking, I‟m in favor of the plan.
7. In c______ with many others, she applied for a training place.
8. I don‟t like a________ flowers, which cannot purify(净化)the air.
9. A n_______ computer is easy to carry.
1o.He‟s very clever. He‟s got quite high i____________ quality.
★选词填空
In a way ,serve, what's more, in the way, make up,
develop, personally, above all, share
1.He lived in a poor district in a house _____ with another family.
2.Don't take it seriously. The story is only ________.
3.I couldn't get through the gate because your car was ________.
4.The change was an improvement ___________.
5.I'll buy a house which modern, comfortable and _____ in a quiet place.
6.The old man is ______ in health.
7.Peter works well.______ he likes to help others.
8.His brother __________ in the army for two years.
9.You shouldn't have talked about the boy's ___________ affairs.
10.Do you mind waiting a few more minutes for the photos? They ______.
ing words and expressions (Ss book P20)
STEP5. Homework
1. Learn all the words and expressions by heart.
2. Preview the text and finish discovering useful words and expressions.
Blackboard Design:
New words and expressions
Translation
Phrases
Fill in the blanks
Unit3 Computers Book2
Period 2 Text
Liu Juan
I .Content
Text: Who am I?
II .Teaching aims:
1. understanding the general meaning of the new text to train the reading ability of the
students
2. 德育目标：了解计算机的发展历程。

III .Important and difficult points:
1. Grasp the general idea of the text.
2. Learn about some characteristics of the English poems
3. Retell the text freely
IV .Teaching steps:
STEP 1. Lead in and warming up:
1.Look at the pictures on p17 and discuss what they have in common.
STEP 2. Pre-reading
How have computers changed our life?
__________________________________________________________________
__________________________________________________________________
STEP3. Fast reading:
Read the passage silently and quickly and answer the following questions, You‟ll be given 5 minutes.
1）Who was the first person to devise the earliest computer?
_______________________________________________________________________
2) What did he make and what did it do?
_______________________________________________________________________
3) Who was the next important person to design computers?
_______________________________________________________________________ STEP4. Careful reading
Task1:Fill in the blanks according to the timeline.
1642: ___________________________________________________________
_____: The Analytical Machine was made by Charles Babbage．
1936: ___________________________________________________________ 1960s: ___________________________________________________________ _____: The first family of computers connected to each other．
1970s:___________________________________________________________ Now: ___________________________________________________________ STEP 5.Interview
As a reporter, you will interview Mr. COMPUTER.
STEP 6.Homework
1.Preview the second text (SB,P22)
2.Reading task(WB,P58)
Blackboard Design:
Lead in
Pre-reading
Fast reading
Careful reading
Unit3 Computers Book2
Period 4 Grammar
Liu Juan
Teaching aim: Grasp the usages of The Present Perfect Passive V oice and use them freely Important and difficult points:
The usages of The Present Perfect Passive V oice
The Present Perfect Passive V oice
现在完成时被动语态由”has/have + been + 及物动词的过去分词”构成。

使用现在完成时被动语态要注意以下几点：
1. 只带有一个宾语的动词变为被动语态时，将主动语态的宾语变为被动语态的主语。

例如：
We have built many houses in the past ten years.
→Many houses have been built in the past ten years.
2. 带有双宾语的动词，如give, send, bring, take, teach, show, tell, make, sing, write, read, sell, buy, tell, pay, lend, pass, promise等，变为被动语态时，可将其中一个宾语变为主语，另一个保留不动。

例如：
We have given him the book.
→He has been given the book.
→The book has been given to him.
3. 带有复合宾语的动词变为被动语态时，只能将宾语变为主语，原来的宾补改为主语补足语。

原来省略to的不定式作宾补的，被动语态中要用带to的不定式。

例如：
I have told them to help you.→They have been told to help you.
I have made her work hard.→She has been made to work hard.
4. 短语动词变为被动语态时，要注意保持短语的完整性，动词后原有的介词或副词不可遗漏。

例如：
They have referred to the books.→The books have been referred to (by them).
He has thought of a way of dong it.→A way of doing it has been thought of.
1.Hundreds of jobs ________ if the factory closes.（2001全国春招）
A. lose
B. will be lost
C. are lost
D. will lose
[解析]本句的意思是：如果工厂倒闭，那么将失去数百个工作岗位。

lose a job意为”失业”。

工作将被失去，要用将来时态的被动语态，因此排除答案A、C和D，答案选B。

2.The mayor of Beijing says that all construction work for the Beijing Olympics ________ by 2006. (2004北京)
A. has been completed
B. has completed
C. will have been completed
D. will have completed
[解析]宾语从句中主语all construction work for the Beijing Olympics和谓语动词complete 之间有被动关系，所以谓语要用被动语态，因此排除选项B和D；by 2006暗示谓语要用将来完成时态，因此答案选C。

3. All the preparations for the task ________, and we are ready to start.(NMET2000春招)
A. completed
B. complete
C. had been completed
D. have been completed
[解析]本句的意思是：这项工作的一切准备工作已经就绪,我们只等开始了。

前半句主语和谓语有被动关系，后半句暗示说话是从现在着眼，所以用现在完成时态的被动语态。

答案D。

练习:
★单项填空
1. Paper money _____ for over a thousand years.
A. used
B. has been used
C. has used
D. is using
2. Come and sit down by the fire. Your hand _____ cold.
A. has been left
B. feels
C. is left
D. has left
3. Till now, three films _____ in that small village this month.
A. have shown
B. have been shown
C. were shown
D. will be shown
4. Do you know the thief _____ by the police?
A. has caught
B. has been catching
C. was caught
D. has been caught
5. My sister is working in the power plant that _____ for just one year.
A. was used
B. has been used
C. is used
D. has used
6. Is this the reason _____ he explained at the meeting for his carelessness in the work?
A. /
B. what
C. how
D. why
7. They were all very tired, but none of them would stop _____ .
A. taking a rest
B. to take a rest
C. resting
D. rest
8. Her face went red _____ he had said.
A. because that
B. because what
C. because of what
D. because
9. Tom prefers _____ rather than _____ .
A. stay at home; go out
B. to stay at home; go out
C. stay at home; to go out
D. to stay at home; to go out
Finish the exercise on page 21 (Discovering using structures )
Blackboard Design:
Grammar
The Present Perfect Passive V oice
Exercises
Unit3 Computers Book2
Period 3 Language points
Liu Juan
I Teaching aims:
Teach and study the language points to grasp and use them freely.
II Important and difficult points:
in common , anyway, go by, so...that...
III Teaching methods: Practising
IV Teaching Steps: Language points learning
1. In small groups, discuss what they have in common? 分小组，讨论它们的共同点。

[要点导航] in common 共有，公用（常与have，own等动词连用，在句中多作状语）。

例如：
The two brothers own the company in common.
兄弟俩共有这家公司。

The two cultures ________________________.这两种文化具有许多相同之处。

Jane and I have nothing in common(=I have nothing in common with Jane).
我与简毫无共同之处。

[思维拓展] in common with 和……一样（作方式状语）。

例如：
, he likes football.他和很多其他的男孩一样喜欢足球。

have nothing in common 无共同之处
have little in common 几乎无共同之处
have something in common 有一些共同之处
have a lot in common 有许多共同之处
以下是从英国国家语料库中精选出来的几个例句：
（1）You know, Dorothy, you and I have one thing in common．
（2）We just had nothing in common and I couldn't communicate with his dull business friends．
（3）I suddenly felt we had a lot in common．
Tom and I have nothing in common.= I
我和汤姆没有共同之处。

common, ordinary和usual的区别:
common 指“共有的，公共的；共同的；常见的”。

例如：
He is their common enemy.他是他们共同的敌人。

The problems are common to all societies.这些问题是所有社会的通病。

common作“普通的”讲可与ordinary换用。

如“普通人”也可说成common people。

ordinary意为“普通的，平淡无奇的”，指没有什么特别的地方。

例如：
We are all ordinary people.我们都是普通人。

He is in ordinary clothes.他穿着平常的衣服。

usual意思是“平常的，通常的，一向的”，含有遵循常规的、习惯性的、一贯如此
的意思。

例如：
Tea is considered to be the usual drink of the British people.
茶被认为是英国人的日常饮料。

He made the usual mistakes that all beginners make.
他犯的就是那些初学这老犯的错误。

2. Anyway, let’s go back to my history. 无论如何，让我们追溯一下我的历史。

anyway adv. 无论如何，反正（句子副词，等于anyhow。

用于转换话题或回到原话题时）。

例如：
Anyway it‟s worth trying. 不管怎样，值得试一下。

That‟s not my fault, anyway. 反正那不是我的错。

Anyway I must finish the work today. 无论如何，我今天必须完成工作。

[思维拓展] anyway adv.总之（句子副词，用于结束谈话时）。

例如：
Anyway, I must be going now. 总之，我现在得走了。

Anyway, after three months at the clinic, she‟d made a full recovery.
总之，在诊所治疗三个月后，她完全康复了。

3.As the years have gone by, I have been made smaller and smaller.
一年一年过去了，我被制造得越来越小。

此处as引导时间状语从句，表示“一边……一边”、“随着”之意。

go by （时间）过去，流逝；经过，走过（某处）。

Several years went by before we met again.
过去了好几年我们才再度见面。

Don‟t let this opportunity ___________. 不要错失良机。

A squad car went by (us) at full speed.
一辆巡逻车以全速驶过（我们的）身旁。

拓展:go after 追求go against 反对go ahead 先行一步；进展
go over 复习go out 熄灭go though 经历；经受；仔细检查
go on with 继续go in for 爱好；从事go off 悄悄离开；食物变坏
go on进展；时间的过去（重过程）pass by sb从某人旁边经过
I don‟t ________ rock …n‟ roll. It‟s much too noisy for my taste.（2004北京）
A. go after
B. go away with
C. go into
D. go in for
go after 追求；go away with与某人一块离开；
go into 进入；go in for 爱好，从事。

答案为D。

4.And my memory became so large that I couldn’t believe it!
我的记忆力变得那么大以至于我都不能相信了。

so…that… 意思是”太……以至于……”，引导结果状语从句。

adj./adv.+ that-clause
so + adj.+ a/an + 单数可数名词+ that-clause
many/much/few/little + n.+ that-clause
so与many/ few/ little/ much 连用当little修饰可数指大小时与such连用。

She‟s so ill that she can‟t get out of bed.她病得很重，都下不了床了。

There were ___________________________________I had to write it again.
作文中有那么多错误，我不得不重写。

拓展such…that… 意为”太……以至于……”，也引导结果状语从句。

有以下用法：
a/an + adj. + 单数可数名词+ that-clause
such + adj.+ 复数名词+ that-clause
adj.+ 不可数名词+ that-clause
These are such interesting books that children like to read them.这些书很有趣，孩子们喜欢读。

so that 既可以表达结果，又可以表达目的，表目的相当于in order that。

I stopped so that you could catch up.我停下来以便你能赶上
so…that…结构的so+形容词/副词位于句首时，主句要倒装。

So hard does he work that he seldom goes home.他工作那么努力，几乎不回家。

such…as…中的as引导的是一个定语从句。

1)He was such ________ good speaker that he held our attention every minute of
________three-hour lecture.
A．不填; the B．a; 不填C．a; the D．a; a
考查such+a/an + adj. + 单数可数名词+ that-clause结构和冠词的用法。

2). I hurried ____ I wouldn't be late for class．（MET87）
A．since B．so that C．as if D．unless
3)．It is ____ work of art that everyone wants to have a look at it．（98上海卷）
A．so unusual B．such unusual
C．such an unusual D．so an unusual
_________________
汤姆跑得如此快以致于没有人赶上他(catch up with)
It‟s so interesting a book that I have read it many times.
=
It‟s heavy a stone no one can lift it.
It‟s heavy a stone no one can lift.
so…that和such…that可以相互转换，请把下面的句子转换为so…that结构：
It was such a warm day that they all went outing.
=___________________________________________________
Exercises:
1. How do you a car accident when is happens?
A. do about
B. do with
C. deal with
D. deal about
2. Till now, three new gymnasiums in Beijing.
A. would be completed
B. was being completed
C. have been completed
D. had been completed
3. When and where to go for the on-salary holiday yet.
A. are not decided
B. haven‟t been decided
C. is not being decided
D. hasn‟t been decided
4. – Go for a picnic this weekend,ok?
-- . I love getting close to nature.
A. I couldn‟t agree more
B. I‟m afraid not
C. I beli eve not
D. I don‟t think so
5. Mr smith and his wife the housework and live happily.
A. spare
B. support
C. care
D. share
6. He had little education that he can‟t teach a little child.
A. so, such
B. such, such
C. so, so
D. such, so
7. Christmas is coming; we are in October already.
A. on the way
B. in the way
C. out of the way
D. by the way
8. –What happened to you last night? Why didn‟t you come to my party in time?
-- Sorry, the traffic was too heavy, and , my car broke down on the way.
A. what‟s more
B. what‟s the worse
C. what‟s worse
D. worst of all
9. He me to come, but hasn‟t come yet.
A. wanted
B. allowed
C. promised
D. let
10. He praises for his honesty.
A. won
B. beat
C. defeated
D. Struck
Blackboard Design:
Language points:
in common ,
anyway,
go by,
so...that...。