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高中英语必修2 Unit3 Computers 优秀获奖PPT课件免费下载

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Period 2
Important Sentences
范文背诵
话题:现代技术
常用词汇:
science and technology 科学技术computer电脑 
Internet网络 computer games 电脑游戏 
email 电子邮件information信息 message消息 screen屏幕 mouse鼠标 apply应用 application应用 invent 发明 invention发明 electronic电子的 laptop手提电脑equipment设备equip…with 装备 software软件 data数据 database数据库 robot机器人 satellite卫星 battery 电池 chip芯片digital 数据的fax 传真portable手提的engineer工程师 update更新
download下载 net网 network 网络系统 
virus病毒 access进入 scan浏览 
store sound and picture digitally
自动贮存声音和图片 deal with处理 
the latest version of the software最新版的软件 
surf the Internet上网 shop on line 网上购物
范例:
The Advantages and Disadvantages of the Internet
The following aspects could best illustrate the
advantages of the Internet. Net surfers
(网上冲浪者) in different countries can share
interesting knowledge and the latest information.
Besides, the Internet has provided a major
opportunity to buy and sell merchandise (商品).
What is more, people may get medical help or
even vote on the Internet. Its advantages seem
countless.
We should handle its problems, meanwhile
we should exploit its potential as well.
With proper management of the Internet people
ought to experience more fruits of the information
revolution. All the wisdom of the ages, all the
information that has enlightened mankind for
centuries, should be available to us with the healthy development of the Internet.
Section C (25 marks)
Directions: Write an English composition according to the instructions given below.
学校正在组织科技创新大赛,你想为日常生活中某件物品(如钢笔、书包、鞋子……)设计添加新功能来参赛。请以“My Magic ”为题写一篇英语短文,介绍你的创意。
内容:
1.说明设计理由
2.介绍新功能。
注意:
1.词数不少于120个;
2.不能使用真实姓名和学校名称。
2014年普通高等学校招生全国统一考试(湖南卷)
One Possible Version
My magic pan
I have been thinking about inventing a magic pen for many years.
Every time when I see my classmates doing their homework
with frustration and tiredness, how I want to give them some help and bring relaxation to them; Every time when I notice my teacher writing on the blackboard with great efforts and wiping off his hand writing off the blackboard with a dusty hand , how eager I am to offer him some help and make him enjoy the happiness of teaching without dust.
After many errors and trials ,today ,I at last made it . I add
some new functions to my usual pen.
Pressing the blue button , users can enjoy some relaxation after a tiring and boring writing by listening to some beautiful songs ,soft music and radio programs for one or two minutes
through a special earphone. Switching on the “T” button , which is invented for teachers , users can write smoothly on the blackboard at the same place time and time again, as the handwriting will be cleared up automatically when the users write at the same place for a second time.
I feel happy with my magic pen, but I cannot the magic smiles on my classmate and teachers’ faces too much!
课文句型背诵
1.My memory became so large that even I couldn’t
believe it!我的存储量大的我都难以置信!
2.I developed very slowly and it took nearly two hundredyears before I was built as an analytical machine by
Charles Babbage.我发育缓慢,差不多到了两百年之后,查尔斯·巴比奇才把我制成了一台分析机。
3. Over time my memory has developed so much that,
like an elephant, I never forget anything I have been told!
随着时间的推移,我的记忆能力发展得如此之快,就像一头大象一样,我从来不会忘记告诉我的任何情!
4.Anyway,my goal is to provide humans with a life of high quality.
不管怎样,我的目标是为人类提供高质量的生活。
5.By the 1940s I had grown as large as a room,and I wondered if I would grow any larger.
到20世纪40年代,我已经变成一个房间那么大,我想知道我是否会继续长大。
6.But I was always so lonely there by myself,until in early 1960s they gave me a family connected by a network. 但是我独自一人在那里总是如此孤独,直到20世纪60年代早期他们给了我一个由网络所连接的家庭。
7. As time went by , I was made smaller.
随着时间推移,他们把我造的越来越小了。
8.In a way our programmer is like our coach.
从某种程度上看,我们的程序员就像是我们的教练.
9.After all,with the help of my electronic brain which never forgets anything,using my intelligence is what I'm all about!
不管怎么样,在我过目不忘的电子脑的帮助下,运用智能就是我的一切。
10. What ’s more, you can use the Internet to learn English.而且,你还能利用因特网学习英语。
11.She programs us with all the possible moves she has seen while watching human games.
她把观看人类比赛时所看到的一切可能的动作编入我们的程序。
重点句型
1 .In pairs discuss what they have in common.
结对讨论它们有什么共同之处。
common adj.常见的,常用的,共同的,共有的,共用的
common knowledge 人所共知的事实
common sense 常识
have nothing/ little in common 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
in common with 和…一样
【提炼句型】
句型: have …… in common 与….有共同之处
1)选用上述短语完成下列小片段。
It is (1)_________________that twin brothers or sisters (2)____________________in appearance. But there are twins who (3)_________________in character. Take Jane for example.
(4)________________her twin sister Mary,she is beautiful and charming. But unlike selfish Mary,Jane is kind and friendly.
2) Salt is a common food preservative.
盐是一种常用的食物防腐剂。
3) In common with many boys, he likes playing
football. 和许多男孩子一样,他喜欢踢足球。
common knowledge
have a lot in common
have little in common
In common with
【经典例句】
(1)This book has__________________________ (共同之处)that one.
(2)We are______________ (普通人), but we can do something well.
(3)_____________________________ (和多数英国人一样), he enjoys football.
(4)Snow____________ (常见) in cold countries.
something in common with
common people
In common with most Englishmen
is common
词语辨析:common,ordinary,average,usual
common指全体所共有的,共同的特征,强调常见与普遍。
ordinary 指种类普通,强调平淡、平庸、普通的意义。
average 通常指达到平均水平,不突出。
usual 指通常的,习惯性的。
选用上述单词填空。
(1)Sparrows (麻雀) look quite________ but they are not________ at this time of year.
(2)The first time I met her,I thought we'd seen before. She has got that ________face of a neighbor girl.
(3)Why are you so impressed with this film? According to me,it's just ________.
(4)I was not typing very fast. It was only________. My________ speed is 150 words per minute.
ordinary
common
common
ordinary
average
usual
2.Work out a list and compare it with your partner.列一张清单,并和你的同伴作比较。

compare...to 把...比作 compare...with 把... 和...比较
compared with /to 作状语
(在质量,尺寸,数量上)...与...相比
compare with 是具体的比较,
compare to 是抽象的比较。
* compared to 和compared with 表示“与… 比
较起来”,在句中作状语,位于句中或句未,可互换。
【常用表达】
Girls are often compared to flowers.
I can’t compare my dress with your dress.
Compared with/to many women, she was indeed very fortunate.
【经典例句】
3.I developed very slowly and it took nearly two hundred
years before I was built as an analytical machine by
Charles Babbage.我发育缓慢,差不多到了两百年之后,
查尔斯·巴比奇才把我制成了一台分析机。
句型:It took+一段时间+before+从句(一般过去时)”句型,表示“过了一段时间后才……”。在该句型中主句谓语动词多使用be动词。
【提炼句型】
It didn't take/wasn't long(或一段时间)before...
过了不久(一段时间)就…… (过去式)
It will take/be long(或一段时间)before...
要过很久(一段时间)才…(以现在代替将来)...
It is / has been long(或一段时间)since (过去式) ...
要过很久(一段时间)才…
It was long(或一段时间)since (过去完成时)...
要过很久(一段时间)才…
It was +时间点+ when….. (过去式)...
当…的时候,时间是….
It will be +时间点+ when… (以现在代替将来)...
当…的时候,时间将是….
It is / has been long(或一段时间)since (过去式)...
要过很久(一段时间)才… 后一般跟非延续性动词。该句型中若since后跟延续性动词,要翻译成否定含义,
即“没做某事已经多久了”. eg:
It has been three years since he worked here.
他不在这工作已经三年了.
It has been three years since he smoked.
他已经戒烟三年了. 但是:
It has been three years since he began to smoke.
他吸烟有三年了。
①It took many years before he returned.
很多年后他才回来。
②It was long before he married Wei Fang.
过了很久他才娶魏芳。
③It will be some time before we know the full results.
再过些时候我们才能知道全部结果。
④That dog ought to be destroyed before it attacks any more children.
应该把那条狗杀死,以防它再伤害更多的孩子。
【经典例句】
1)一切要在两周后才能恢复正常。
It will be two weeks before everything returns to normal.
2)用不了多久我们就会见面的。
It won't be long before we meet again.
3)又过了七年他们才结婚。
After that it still took seven years before they got married.
4) 当他回到家时已经8点啦。
It was already evening when he came back.
5)当他回到家时将是中午。
It will be midday when they get home.
(2014江西卷)35. It was the middle of the night
__ my father woke me up and told me to watch
the football game .
A. that B. as C. which D. when
【直通高考】——看看高考怎么考
①It was April 29,2001________Prince William and Kate Middleton walked into the palace hall of the wedding ceremony. (2011·福建,33)
A.that B.when C.since D.before
②John thinks it won't be long________ he is ready for his new job. (2010·陕西,20)
A.when B.after C.before D.since
③The girl had hardly rung the bell________ the door was opened suddenly,and her friends rushed out to greet her. (2010·福建,26)
A.before B.until C.as D.Since
【直通高考】——看看高考怎么考
1).(2008全国)Several weeks had gone by _____they realized the painting was missing.
    A. as B. before C. since D. when
2).(2008广东)The America Civil War lasted four years ___ the North won in the end.
   A. after B. before C. when D. then
3).(2005山东)It was some time _______ we realized the truth. A. when B. until C. since D. before
4).(2010福建)-How long do you think it will be __ China sends a manned spaceship to the moon?
    - Perhaps two or three years.
    A.when B. until C. that D. before
【直通高考】——看看高考怎么考
4.By the 1940s I had grown as large as a room, and I wondered if I would grow any larger.
(P18)到了20世纪40年代,我有一个房子那么大,我想知道我是否能变得更大。

【点拨】句中的I wonder if ... 是一个常用句型,意为“我想知道是否……”,常用来委婉地提出疑问或请求,也可用whether代替if。
【提炼句型】
句型: I wonder if ... “我想知道是否……”
This picture was taken a long time ago. I wonder if / whether you can pick out my father.
这张照片是很久以前拍的。我想知道你是否能辨认出我的父亲。
As time went on, Mary began to wonder if / whether John had forgotten their date.
随着时间的推移,玛丽开始想约翰是不是忘了他们的约会。
I wonder if / whether I can go to Beijing .
我想知道,我是否可以去北京。
【经典例句】
5.As time went by ,I was made smaller.
随着时间的流逝,我被做得更小(L16,P18)
句型:As time went by,... 随着时间的流逝,……as此处是连词引导时间状语从句,意为“随着…”;介词with也有此义,但with是介词,后接名词或代词构成with短语或with复合结构。
【提炼句型】
1)随着时间的推移,情况会有所改善。
As time goes by,things will get easier.
With time going by,things will get easier.
(时间流逝,as time goes by/on等于 with time going by/on)
2) 随着年龄的增长,你对自己会越来越了解。
As you grow older , you’ll know better and
better a

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