高中英语必修2课件：Unit 3 ComputersReading 55张PPT

课件55张PPT。Reading Look at these pictures. Discuss what they have in common. Predict what it is going to be about.Warming upWhat’s next?Pre-reading questionsWhat have computers changed our
life?
2. What changes will they bring to us in the future?Task 1 Skimming1. Who is the speaker in this story?
A computer.
2. Write down three sentences from the story to support your idea.
1) I was built as an Analytical
machine by Charles Babbage.2) My real father, Alan Turing, …
3) I was always lonely standing there by myself, until in early 1960s they gave me a family connected by a network.Task 2 Fast reading1. Where were you in 1642?
In France.
2. What happened to you after nearly
two hundred years?
I was built as an Analytical Machine
by Babbage.
3. What were you called in 1936?
A universal machine.
4. What happened to you in the 1970s?
I have been used in offices and homes.The computer began as a calculating machine．The computer grew rapidly both in size and in brainpower.Task 3 Careful readingComputers had grown as large as a room.1960sComputers were used in offices and homes.Computers connect people all over the world together.calculatinganalytical universal mathematical
problemsMedical operations MemoryTransistorsApplicationsCommunicationTradetotallyrevolutionsimplifycalculatemobilesolveTask 4 Fill in the blanks.exploretotallyanyhowfinanceThe history of computersthe second generation
(1956-1963)the third generation
(1964-1971)the fourth generation
(1971- )The first generation
(1945-1956)Task 5 QUESTION-ANSWER
COMPETITION What is PC? Speak the name on the whole.It means: personal computer.2. What is IT?Information Technology.3. What is CD-ROM?Compact disc read-only memory.4. What is PDA?Personal digital assistant.5. What is W.W.W?World wide web.6. 科学技术。Science and technology.7. 人工智能。Artificial intelligence.8.笔记本电脑。Notebook computer.9. Who was the first person to devise the
first computer? Charles Babbage invented an Analytical machine in 1822.10. Who was the computers’ real father?Alan Turing.Read the passage and then fill in the chart.Reading task on Page 58 Expert at high flying exercises: Olympic standardWonderful turns, dives, circles and dancesSilver medal for high flying exercisesBegan very well but failed through no fault of his ownParachute failed to open.Two new legs and a new bigger head1. in common: for or by all of a group
共同的；共有的；共用的
the land owned in common by the
residents 居民共有的土地
in common 常常同have连用，如：
have nothing in common 无共同之处
have little in common 几乎无共同之处Language pointshave 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.2. calculate v. work (sth.) out by using
numberse.g. calculate the cost of sth.calculator n. 让我们一起回忆一下以or结尾的词吧：visitor, survivor, competitor3. analytical adj.分析的, 解析的
analyse vt. 分析;研究
analogy n. 相似;类似
analysis n. 分析;研究
analyst n. 分析家
analytic adj. 分析的;分解的4. artificial adj. 人工的, 人造的
artificial flowers/limbs/pearls 假花/假肢/假珍珠
artificial intelligence 人工智能5. As a result 结果；终于；因此。
[考例] My friend Martin was very sick with a strange fever; ______, he could neither eat nor sleep. (江西2005)
A. as a result B. after all
C. any way D. otherwise
[点拨] 考查短语辨析。as a result结果； after all毕竟； any way不管怎样；otherwise 否则。由句意可知要选as a result。 6. totally adv. 整个地;完全地
totally blind 全盲
total adj. 完全的; 整个的
total silence 寂静无声
in total 总共7. Over time my memory has developed so much that, ... I never forget anything I have been told.
[考点] so ... that ... 引导结果状语从句。
[考例1] The weather was ______ cold that I didn’t like to leave my room. (2008 全国卷I)
A. really B. such
C. too D. so[考例2] I haven’t seen Ann for ______ long that I’ve forgotten what she looks like. (四川2008)
A. such B. very
C. so D. too
[点拨] 两题都考查so ... that ... 的用法。8. And my memory became so large that even I couldn’t believe it!句型：so… that…　如此……以致于……与 too…to… 句型的相互转换And my memory became too large for me
to believe it.eg He is so old that he can’t carry the box.He is too old to carry the box. 此结构中的that从句表示结果。
The stone is so heavy that no one can lift it.
比较: so that 既可以表结果,也可以表目的。 so...that...结构的so+形容词/副词位于句首时,句子用倒装结构。
So hard does he work that he seldom goes home.9. But I was always so lonely standing there by myself, until in early 1960s they gave me a family connected by a network.
[点拨] until表示“直到……时”，在肯定句中，指从开始到结束的整段时间，谓语动词一般是延续性的。在否定句中构成not ... until，意为“直到……才”，指到某一点动作才开始，谓语动词一般是非延续性的。其强调句是it is (was) not until ... that ...。当not until位于句首时，句子要进行倒装。如：
The experts explored the island until the end of last year.
直到去年年底，专家们一直都在勘查这个小岛。
We didn’t solve the problem until Mr. Smith helped us.
直到史密斯先生帮助我们，我们才解决了那个问题。
It was not until last year that my hope became a reality.
Not until noon did it stop raining. 10. I have also been put into robots and used to make mobile phones as well as help with medical operations.1) help (sb) with sth 协助(某人)做某事
e.g. A man is helping the police with their enquiries.
有一男子在协助警方进行调查。2) as well as 也，还，而且e.g. He grows flowers as well as vegetables.She is a talented musician as well as being a photographer.3) 这个句子是现在完成时被动语态，其机
构是 (have/has +been + 过去分词）
e.g. The radio has been repaired when
we phoned the shop.[考例1] Professor James will give us a lecture on the Western culture, but when and where ______ yet. (浙江2007)
A. hasn’t been decided
B. haven’t decided
C. isn’t being decided
D. aren’t decided
[点拨] 本题考查动词的时态、语态及主谓一致。由yet可知要用完成时态，又因时间与地点是被决定的，故应用被动语态。此外，“在什么时候和什么地点（做报告）”是指同一件事，故用单数形式。 [考例2] When you get the paper back, pay special attention to what _______. (四川2007)
A. have marked
B. have been marked
C. had marked
D. had been marked
[点拨] 因mark 这一动作发生在get之前，且试卷是被批注，因此应用现在完成时的被动语态。[考例3] I got caught in the rain and
my suit ______. (北京2007)
has ruined
had ruined
C. has been ruined
D. had been ruined
[点拨] 句意为：我遭遇大雨，我的衣服
被淋坏了。ruin表示的动作发生在got
caught 之后，故排除B、D两项。此处
表示被动，所以C项正确。11. anyhow 无论如何
Anyhow, you can try. 无论如何你可以试试。
I don’t care what you say; I’m going to do it anyhow.
比较: somehow 意为“以某种方式;不知 怎么地”12. I am now truly filled with happiness that I am a devoted friend and helper of the human race!
[点拨] that引导同位语从句，具体说明happiness的内容。that是连词，在从句中不充当任何成分。英语中用that引导同位语从句的情况比较常见，但有时也可以用连接副(代)词 how, when, where, whether等来引导同位语从句。注意：if, which 不能引导同位语从句。如：
I had the impression that she chose her words with care.
在我的印象中，她选词很小心。
I heard the news that our team had won.
我听到了我们队获胜的消息。
l have no idea when he will be back.
我不知道他什么时候回来。
He must answer the question whether he agrees to it or not.
他必须回答他是否同意这样一个问题。I. 根据下列各句句意及所给单词的首字母或汉语提示，写出该单词的正确形式。
1. The salesgirl asked me if I had the exact s______, since the shop had no change.
2. The invention of aircraft caused a r_________ in our ways of traveling.
3. With the development of the Internet, the World Wide W______ has become a valuable information source for us.sumrevolutionWeb练习4. A______ intelligence is the study of how to make computers do things that people can do.
5. The weathermen in Beijing are planning to fire r______ to drive away rain clouds during the 2008 Olympics.
6. Two female tourists were robbed of their money and ______ (可移动的) phones while walking in the street, so they felt very upset.
7. The crowd cheered wildly at the sight of Liu Xiang, who broke the world record in the 110-meter hurdle ______ （比赛）.Artificialrocketsmobilerace8. They use the ______ （管子） to transport oil from the west to the east.
9. ______ （人类的） facial expressions differ from those of animals.
10. We will soon arrive at the point where we can find all the knowledge of humankind on a computer ________ (网络).tubeHumannetworkII. 用括号内所给词的适当形式填空。
1. Try to ______ (simple) your explanation for the students to help them understand better.
2. If you want to know about the hotel, you can call the ________ (operate) to find out the information.simplifyoperator3. The boy is very clever and he shows high ___________ (intelligent) in study.
4. ______ (real) is not the way you wish things to be but the way they actually are.
5. Bob is ______ (total) different from his father, who is very tall.
6. They agreed to accept my ______ (apply) for joining their team.intelligenceReality totally application7. His success in business brought ______ (happy) to his parents.
8. We will make a ______ (person) visit to the student’s home.
9. His speech is ______ (logical) organized and sounds great.
10. I disagree that the age of ______ (technology) revolution has ended. happinesspersonallogicallytechnologicalIII. 用适当的介词填空。
1. I stayed awake one night ______ myself to enjoy the beautiful moonlight.
2. ______ time animals have developed many ways to stay away from their enemies.
3. He has taken up photography ______ a hobby.
4. Leaves ______ holes in them are signs that insects have been around.byOveraswith5. ______ then on, Rick got up early every day and he was never late.
6. We’ve learned many kinds of languages __________ the World Wide Web.
7. Two girls jumped ______ happiness on the sand.
8. As time goes ______, our life will improve greatly. Fromthrough / onwithby / onIV. 每空填一词，使该句与所给句子的意思相同。
1. I always do the housework and I also look after the children.
I always do the housework __ ____ __ look after the children.
2. Since that day, we have become very good friends.
______ that day ______, we have become very good friends.as well asonFrom3. Because the flood is so serious, two thirds of the buildings in the area need repairing.
The flood is so serious. ___ __ ____, two thirds of the buildings in the area need repairing.
4. She is too upset to calm herself down.
She is ______ upset ______ she can’t calm herself down.
5. She has changed her character completely.
She has ______ changed her character.As a resultsothattotallyV. 根据括号内所给的提示将下列句子翻译成英语。
在朋友们的帮助下,他终于解决了问题。（solve）
2. 她从那时起就知道自己会获胜。（from ... on）
With the help of his friends, he finally solved the problem.From then on she knew she would win.3. 结果，他只得离开。（as a result）
4. 1923年他们考查了这片沙漠地区。（explore）They explored this desert region in 1923.As a result, he had to leave. Look up the words below:
in common, as a result, anyhow,
so...that, in a way, watch over. Finish the Ex2 and Ex3 in Learning
about Language on page20.Homework