Unit One A Friend or a Spy–Computer Step one

Ⅰ Lead-in :

1. Warm-up questions

1) What did your computer change your life? 2) Why do people use computer more and more? 2. the content of the unit

In this unit you should get familiar with: a. the functions of computers

b. the changes computers bring to our life c. the advantages of computers d. the disadvantages of computers

3.Tick (√) the words or phrases that are associated with this unit. □Windows □compact disc □operating system □database □U disc

□modem □firewall

□workstation

□Explorer □processor □server

4.Look at the following words and record them with the explanation

mainframe computer desktop computer scanner notebook computer laser printer handheld PDA Ⅱ The new words of Part A 1 the words listed by the textbook

sedentary a. 坐着的，不（或极少）活动的 unprecedented a. 空前的，无前例的 clique n. 私党, 小圈子, 派系 proxy n. 代理人 integrity n. 正直，诚实 reliability n. 可靠性 corrode vt. 腐蚀，侵蚀 2. the new words in the passage launch v. 发行, 发布, 发射 pioneer v. 领先 bargain airfare 打折机票 Credit card 信用卡 identification n.识别

unique adj. 惟一的 inhabit v.居住

rather than, 意思是 ―而不是‖ ink 表示 ―用墨水写‖

access to是固定搭配, 表示 ―进入（权）；通道;入径‖ search for 是固定搭配, 表示 ―搜寻‖ as far as是固定搭配,表示 ―据…, 就… ‖ lack for是固定搭配, 表示 ― 缺少, 缺乏‖

Ⅲ Divide the students into three groups, ask one student of each group to express the new words without the word itself, and the left members of the group guess the words.

the group which get the highest score can have the right to test other groups.

Ⅳ Assignment

Ask the students to do related exercises by reviewing all the prases they have learned today.

Unit One A Friend or a Spy–Computer

Step Two

I Review the new words, ask some question about computer. 1. Could you list out some components of computer? 2. What did your computer change your life? II Comprehension of the passage

1. From then on, rather than inking letters to faraway friends people send instant messages while watching them on web cameras .

rather than, 意思是 ―而不是‖ 例如:

We'll have the meeting in the classroom rather than in the auditorium.

He preferred to die rather than surrender to the enemy. ink 在本句中表示 ―用墨水写‖

2. And they also search online for anything from love to medical advice to bargain airfares.

search for 是固定搭配, 表示 ―搜寻‖

from to 是固定搭配, 本句多了 to 表示范围之大. 3. The unprecedented access to information provided by computers has changed society’s privacy landscape. access to是固定搭配, 表示 ―进入（权）；通道;入径‖ There is no access to the street through that door. 那个门不通向大街。

Access to the documents remains restricted to civil servants. 这些文件仍仅限公务员使用。

4. As far as we can see, the effects of computers on society go far deeper than online lifestyles.

As far as是固定搭配, 在本句中表示 ―据…, 就… ‖

As far as I know, he will be away for three months. 据我所知, 他将离开三个月。

5. while democratic, lacks standards for integrity and reliability. while 在本句中表示 ―虽然‖

lack for是固定搭配, 表示 ― 缺少, 缺乏‖

She does not lack for friends.

她不缺朋友。

Nothing is lacking for our plan. 我们的计划什么也不缺了。

III Assignment

Ask the students to do related exercises by reviewing all the prases they have learned today.

Unit One A Friend or a Spy–Computer

Step Three

I Review the new words, ask some question about computer. 1. Could you list out some components of computer? 2. What did your computer change your life? II Comprehension of the left part of the passage

1. Internet firms that provide free services such as online searches，maps，and email save information typed in by users and sort it by unique identification numbers in the machines.

本句中, that provide free services such as online searches，maps，and email 是定语从句, 修饰Internet firms.

Save information typed in by users and sort it by unique identification numbers in the machines. 中 ― save‖ 和 ―sort‖ 是两个并列的谓语.

typed in by users 是过去分词短语作定语修饰information 2.The computer brings the world into our home as the television did before.

bring into 表示 ―把 带到 中 as 在本句中表示: 像 一样‖

译为: 计算机把世界带到了家中，就像以前电视所做的那样. 3. people you buy from or sell to

本句中you buy from or sell to 是定语从句,修饰 people 译为:与你做买卖的人

4. The full effects that computers and the Internet will have on journalism, education and the military are yet to be known that computers and the Internet will have on journalism是The full effects的定语从句, have effect on 表示 ―对 有影响‖ 译为:计算机以及互联网对新闻业、教育和军队的全部影响还不清楚. III Assignment

Ask the students to do related exercises by reviewing all the prases they have learned today.

Unit One A Friend or a Spy–Computer

Step Four

I Overview the part of the passage, and ask some questions about the passage.

① When was the first PC launched?

② How does the computer change society’s privacy landscape? ③ Why we call the comput …… 此处隐藏：5999字，全部文档内容请下载后查看。喜欢就下载吧 ……