Unit 8 Computers and Security
Passage A: You Are the Weakest Link, Goodbye
I. Teaching Objectives
1. To let students master some important new words and expressions listed from
P193-195.
2. To let students learn something about the computer viruses through the passage A.
II. Time Allotment
1st period: Lead-in(Questions)(5min)
2nd period: Related Information(10min)
3rd period: Detailed Study of the Text(Learning new words, expressions and
discussing Passage A)(55min)
4th period: Doing the Exercises from P154-156(30min)
5th period: Assignment
Ⅲ. Teaching Procedures
1. Lead-in Questions
1. Do you often download free software from the Internet? Explain.
Reference:Yes, I often do, as I like to explore the potentialities of the Internet. Many
people also welcome free software because they don’t have to pay for it. Others don’t
U6P1
Lead in
Physical activity improves our bodies' health. A recent study published in The
New England Journal of Medicine, suggests that maintaining a healthy level of
physical fitness through exercise can help people live longer; and the findings also
provide updated support to Charles Darwin's "survival of the fittest" theory. But
repetitive exercise can become boring, leading to discouragement, frustration, even
quitting. Selecting an activity that provides enjoyment as well as physical exercise,
however, can be the answer. Many people have turned to sports. Sports can provide
a challenge physically as well as mentally - and increase one's physical activity while
providing social interaction, a sense of accomplishment and enjoyment.
First held as part of the 1896 Olympics in Athens, Greece, and then brought to
Unit1 关注地球母亲
（《意识》杂志的麦肯立博士就环境问题对几位专家进行采访。）
麦肯立博士：您认为目前环境面临的最大威胁是什么？
阿曼·莫特万：现在环境面临的最大威胁来自我们人类对环境的态度。我们对环境的看法决定着我们周围世界的环境。大多数人认为万物是彼此孤立的。但事实上，每一个个体都是一个息息相关、相互联系的整体的组成部分。比如，一颗树看上去或许是孤立的，但它却对其周围环境中的一切——日光、雨水、风、鸟、矿物质、其它植物和树木、你、我等——施加影响，同时又处于环境的的影响之下。一棵树会影响从它周围吹过的风；风同时又会影响这颗树的生长。了解这棵树与其环境的关系，你就可以预见它的未来。
塞姆基博士，您好。您在研究过程中觉得哪些环境问题最为紧迫？
大多数人对万物之间的相关性视而不见。正因为如此，我们就不了解我们的所作所为会造成的后果。现在我们每个人都应该睁开双眼，看清这个世界的真实面貌——一个因果相循的完整集合体。
塞姆基博士：我们认为最严重的两个环境问题是森林砍伐和全球变暖。由于大量砍伐，现在地球上的树木仅有一万年前的一半。毁掉树木也就破坏了生态环境，因为树木可以维持表层土壤，保证干旱气候地带的降雨量，净化地下水，并将二氧化碳转化为氧气。树木把水从地下带到地面，并让水蒸发到大气中，随后这些蒸发气体又再化为雨水返回地面。这对天然的干旱地区是至关重要的。毁林地区的下风区域会因缺乏降雨来源而变为荒漠。全球变暖的原因是燃烧石油等矿物燃料引起的，因为这会释放出温室气体进入大气。二氧化碳和其它温室气体会聚积热量，最终造成全球气候变暖。
麦肯立博士：纳可森博士，谢谢您专程从澳大利亚远道赶来参加我们的访谈。请您告诉《意识》杂志的读者怎样做才有助于解决环保问题。
利昂·纳可森：保护环境最简单的方法就是不要去摧残它。要尽最大努力去善待它，尽可能少索取，多回报。
麦肯立博士：对于环境的现状及未来，您最关心的是什么呢？
大学体验英语综合教程2Unit 3 Advertising的listen and talk 部分教案
王晓芳Unit 3 Advertising
I. Teaching Objectives
1. To train the students’ ability to listen through listening practice.
2. To cultivate the students’ ability to talk about advantages and disadvantages of advertising.
3. To let students learn something public service advertisement and sales advertisement.
II. Time Allotment
1st period：Lead-in 2nd period：Discussion
3rd period：Dialogue samples 4th period：Communicative tasks
III. Teaching Content
1. Lead-in: Listen to the passage at least 3times and try to fill the missing words in the blanks.
2. Discussion: Four pictures are presented to encourage students to talk about different jobs.
3. Dialogue samples: Two dialogues
Dialogue 1 Talking about a public service advertisement Dialogue 2 Talking about a sales
