课件32张PPT。TV and audio devices:
a reviewdevelopment of TVblack-and-white TVcolour TVLCD screenMP3MP4tape recorderdevelopment of audio devicesLeading-in:What does the TV in your home look like?
How big is it? Is it in color or in black and white?
What audio devices do you choose to enjoy music?
What functions else do you need in an audio device besides playing music?First reading: read the text and finish
Part A on P21. When did regular public TV broadcasting?
2. What is WebTV?
3. What was invented in 1954?It began on 11 May 1928 in New York and in London on 20 Agugust 1929.It is the TV set combined with the World Wide Web.The cassette recorder.Thomas Edison made the first recording of a human voice. ( )
Until 1972, most people used black-and-white TV. ( )
Satellite TV is delivered with greater clarity than digital TV. ( )
The first record player was invented before 1877. ( )TFFTReading(PartC1):Digital TVsatellite TVafter5.Transistor technology was first used to receive radio programmes, and then used to develop the cassette recorders. ( )
6.CDs were invented about10 years before the MD player was invented. ( )
7.MP3 technology began in Germany in1987. ( )TFT for military useFirst recording of a human voice was made.First public showings of wireless TV transmissions were made in the USA.Reading(PartC2):Cable TV began in the USA; 3
American scientists invented the
transistor.Color broadcasts began in the USA.Invention of transistor led to the
development of cassette recorders. First LPs came onto the market. Satellites began to be used to
broadcast TV. First CDs produced by using digital technology were made available. Development of MP3 technology
started in Germany. International standards for digital
TV were established. Development of MD player began. First WebTV set-top boxes came
onto the market. Part D: Match the following words with
the correct definitions.review
uncertain
superior
questionnaires
wound up
patent
portable
demandingable to be carried
asking for sth, firmly
a written list of questions for
finding information or opinions
not sure, feeling doubt about sth.
a report on sth. that shows a
sequence of events
a paper that proves you are the
only person or company able to
produce a certain product.
made to move around itself or sth.
else.
h. better________________________edhcgfabPart E:Fill in the blanks with words given in the box.broadcasting Germany households recording 200
recorders wireless compact Britain 65I was really surprised to find out that the first public
showings of (1)__________ TV transmissions took
place way back in 1925. It took another three years
before there are any regular public(2)____________,
first in the USA and in the following year in (3)______.
Personally, I think people must have found it quite
a delight when colour TV was first broadcast in 1929.
However, within the next (4)_________ years, people
would be able to choose what to match from a variety
of (5)_________ different channels because of cable
TV. It is reported that in 1998, 66 per cent of
(6)____________ in the USA had cable TV.wirelessbroadcastingBritain65200householdsThe other information I got was about the
evolution of audio devices, starting with
Thomas Edison’s first (7)__________, then
moving on to different kinds of tape
(8)__________ and finally CDs (meaning
(9)__________ discs), which were introduced
in the 1980s. I was also really surprised to
learn that (10)___________ was the birthplace
of MP3, not Japan or the USA as I had
Assumed they would be. These things all
bring great convenience and delight to
people’s lives.recordingrecorderscompactGermanySubtitles appear after titles and give
your more information about the text.
They can show you how a text is
organized.
You may not need to read the whole
text if you can find what you are looking for under one or two subtitles.Reading Strategy:Reading strategy: understanding subtitles Subtitles appear after titles and give you more information about the text than the titles. They can show you how the text is organized, such as in order of time, by sub-topics or by concepts.
TV
(In order of time)
Audio devices
(By types of equipment) Early history of audio devicesTape recorders and playersSound goes digitalEarly history of TVThe modern age: cable TV, satellite TV, digital TVPost-reading:If you could own only one electronic device, what would you choose? Why?
More and more people are using computers for information and entertainment. Do you think we still need books and TVs in the future? Why or why not?What are some possible disadvantages of having a lot of technology in our lives?follow v. 跟着，跟随，跟踪；遵守规则，听从教导；
信奉；理解，领会；仿效，跟着做；关注，
对……感兴趣
Tom walked in, followed by his pet dog.
汤姆走进来，他的宠物狗紧随其后。
If you’d followed my advice, none of this would have
happened.
如果你当初听从我的忠告，这种事就不会发生了。
I didn’t quite follow what he was saying.
我不太明白他说的话。
In the class, we all had to follow the teacher.
在课堂上，我们全都跟着老师做。
The president follows football matches.
总统关注足球赛。拓展：
be followed by 随后出现，被跟踪 as follows 如下
follow one’s order/ wishes/ advice etc.
服从某人的命令/ 遵照某人的愿望/ 听从某人的建议等
follow the example of sb./ follow one’s example
以某人为榜样
follow the crowd 随大流
follow your feelings 跟着感觉走，凭直觉行事
单词积累：
follower n. 信徒，追求者
following adj. 紧接着，其次的；
prep. 在……以后more than 的用法：
① more …than… 本意为“比……更……”
This book is more expensive than that one.
② more than与数词连用，意为“超过”，相当于 over
More than one house has been burnt in the fire.
不止一所房子在火灾中被烧毁了。
③ more than与名词、形容词、副词、动词、动名词
或分词连用, 意为“不只是，不仅仅是”。
They were more than glad to help. 他们非常愿意帮忙。
④ more than和含有情态动词的句子连用，有否定意义，
意为“是……难以……的”或“超过了……的所能”。
⑤ more …than…相当与rather than，表示取舍，意为
“与其说后者，不如说前者”，这时more 和than连接
两个对等的成分。
The book seems to be more a dictionary than a grammar. 链接：
no more than 仅仅，只不过
no more… than… 和……一样不……
not more than 不超过 more than ever 更加
more than a little 非常
nothing more than 和……完全一样
经典回放：
—— Do you need any help, Lucy?
—— Yes. The job is _____ I could do myself. (福建)
less than B. more then
C. no more than D. not more than
It took ______ building supplies to construct these
energy-saving houses. It took brains, too. (2009 浙江)
A. other than B. more than C. rather than D. less thanBB3. come onto the market 上市，面市
This kind of cloth has come onto the market.
这种布料已经上市了。
链接：
come on 加油，快点 come along 一块来，进步，发展
come across 偶然遇到 come about 产生，发生
come back to life 复活 come down with 患上，染上
come out 出版，发表，出现 come through 安然渡过
come from 来自 come into being 形成，出现
come true 实现 come up with 提出，提供
How come ……？ 怎么会……？
经典回放： (江苏高考）
—— Have you ____ some new ideas?
—— Yeah. I’ll tell you later.
come about B. come into
C. come up with D. come out withCwind n. 风，气流
The forecast is for strong winds and heavy rain.
天气预报据说会出现狂风和暴雨。
v. 缠绕；蜿蜒，曲折前进；拧紧，上发条
Wind the wires around those pins there.
把金属丝绕在那边的那些钉上。
Highway 99 winds its way along the coast.
99号公路沿海岸线弯弯曲曲地延伸。
I forgot to wind the clock. 我忘了给钟上发条。
Would you mind winding down the car window?
请把车窗摇下来好吗？ Against the fierce wind,
单词积累： he wound his way on a
windy adj. 有风的，多风的 winding road.
winding adj. 弯弯曲曲的，蜿蜒的
windbreaker n. 风衣，皮夹克拓展：
be in the wind （指某事）正在进行中，即将发生
wind sth around/ round 把……缠绕在……上
wind sth forward/ back 把……往前进/ 往后倒
wind up 摇动(把手); 转动; 给(机器)上发条；使振奋起来
wind down 使……逐步停止运作；(发条)转松
wind through/ along (指道路、轨道、河流等)曲折前进
wind one’s way 蜿蜒前进
wind off （把卷成物）解开electric adj. 电的，电动的；令人激动的
Water is now lifted to terraced fields by electric power.
现在用电把水提到梯田灌溉。
The news had an electric effect on the waiting crowd.
这个消息使正在等待的人们群情激奋。
辨析：
electric: 表示“电的，用电的，带电的。指任何电动的和
发电的装置。
Yesterday he bought an electric blanket.
昨天，他买了条电热毯。
electrical: 表示“与电有关的，电气科学的”。被修饰者本身
不带电。
He wants to be an electrical engineer after graduating.
毕业后，他想成为一名电机工程师。electronic: 表示“电子的，电子器件的”。
The machine is used by electronic control.
那台机器是由电子控制的。
It is an electronic digital computer.
它是一台电子数字计算机。
一言辨析：
A lot of electrical equipment has been introduced in,
including an electric motor and an electronic device.
引进了许多电气设备，包括一台电动机和一台电子仪器。
单词积累：
electricity n. 电, 电流 electrify vt. 使……带电, 使电气化
electronics n. 电子学 electrician n. 电学家，电工available adj. 可得到的，可利用的；能接受探访的；
有空的（不用于名词前）
We’ve already used up all the available space.
可利用的空间我们都用上了。
The doctor is available now. 医生现在有空。
The president was not available for comment.
总统没时间作出评论。
拓展：
make sth available for… 使……可以享受某物
employ all available means 千方百计，用尽所有办法
单词积累：
avail v. 有利，有益于，有助于 availability n. 可用性
There are plenty of jobs ______ in the western part of the
country. (2008浙江)
A. present B. available C. precious D. convenient B7. spring v. 发生，出现，兴起，冒出；跳起，跃起；
突然提出，说出
A wind suddenly sprang up. 突然刮起一阵风。
Towns have sprung up in what was a dry desert.
城镇在干旱的沙漠中出现了。
He sprang to his feet/ sprang to the door/ sprang over the
wall. 他忽然跳起来/ 跳到了门口/ 跳过了围墙。
I hate to spring this on you at such a short notice.
我很抱歉，突如其来向你提出这件事。
拓展：
spring to life 突然活跃起来 spring back 弹回到原来位置
spring up 突然出现, 涌现, 迅猛发展
spring sth on sb 向某人突然说出某事
Last spring, we held a party at the end of the hot spring.
去年春天我们在温泉边举行了一场舞会。8. launch v. 发动，发起；发射；推出，发行
把(新产品、书等)投放市场
A test man-made satellite was launched from Jiu Quan.
一颗实验人造卫星从酒泉升空。
It was a party to launch her new novel.
这是为发行她的新小说而举行的一个招待会。
单词积累：
launch n. 投放市场，发行；游艇
launcher n. 发射架，发射装置
拓展：
launch a campaign/ appeal 发起战役/ 请求
launch oneself forwards 用力扑向前
launch into 突然开始（描述、叙述、抨击等）
launch out 开始，着手（尤指有风险的事）经典回放：
The country has already sent up three unmanned
spacecraft, the most recent ____ at the end of last March.
has been launched B. having been launched
C. being launched D. to be launched
9. personally adv. 就本人而言, 就个人而言；本人, 亲自
Personally, I like the first proposal.
就我个人而言，我喜欢第一种方案。
All the letters will be answered personally.
一切信函都将由本人亲自答复。
单词积累：
personnel n. (总称)人员, 员工
personal adj. 私人的，个人的
personality n. 人格, 个性; 人物 person n. 人
in person 亲自 in the person of 以……资格，代表Bassume v. 假定，假设，认为
it is generally assumed that stress is caused by too much
work. 人们普遍认为，紧张系工作过多所致。
I assumed that what he said was true.
我假定他说的是真的。
Don’t always assume the worst. 别总往坏处想。
拓展：
assume a new aspect 呈现新面貌
assume airs of … 摆……架子
on the assumption that… 以……的设想为依据
单词积累：
assumed adj. 假定的，假设的
assumption n. 假定，假设
assumable adj. 可假定的
