Do you think that the use of mobile phones is dangerous or not?

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1 Do you think that the use of mobile phones is dangerous or not?
Mobile phones have become part of people’s life and there have been an argument about the safety of using them for many years. What’s your opinion? Do you think that the use of mobile phones is dangerous or not?

2 Making a list of pros and cons
Project Making a list of pros and cons

3 Lead-in 1. How many of you have a mobile phone?
2. Why do you use mobile phones? 3. Can you list some functions of mobile phones?

4 When we’re reading a news report, what shall we pay special attention to ?
Both the title and the first paragraph, which is called the lead paragraph, play a key role in the understanding of a newspaper article.

5 What might be the writer’s attitude towards mobile phone use?
Why do you think so? He might be worried about the use of mobile phones because he says, ‘Scientists have recently provide us with some worrying findings.’

6 Different functions of mobile phones

7 taking photos

8 listening to music

9 surfing on the Internet

10 sending short messages

11 playing games

12 the title eye-catching the 1st paragraph Reading strategy
—a newspaper article the title eye-catching 引人注目的 the 1st paragraph ---the author’s attitude towards mobile phone use (main idea)

13 first reading: True or False
1.It is said that using a mobile phone doubles the risk of developing brain cancer. 2.There is enough scientific evidence available about the effects of mobile phones on people’s health. 3.The industry has clearly announced that the products they are selling could possibly dangerous. 4.Now we all know the fact that cancer is associated with smoking. 5.The writer encouraged the children to use the phone more often.

14 Further reading: finding main idea
Main points Supporting details Using a mobile phone doubles the risk of developing brain cancer. 2. Digital mobile phones are an actual danger. 3. The reasons why there is no definite scientific evidence available now about the effects of mobile phones on people’s health.

15 Main point 1: Using a mobile phone doubles the risk of developing brain cancer. Supporting details The report is based on the findings of research carried out in Sweden, comparing 1,617 patients found to have brain tumours with the same number of healthy people. It was found that people who used mobile phones were two and a half times more likely to have a brain tumour.

16 Main point 2 Digital mobile phones are an actual danger. Supporting details: The study, conducted with 200 mice, of which half were exposed to radiation while the other half did not receive any radiation, shows that the first half were found to have more than twice the cancer rate of the second half after eighteen months.

17 Main point 3 The reasons why there is no definite scientific evidence available now about the effects of mobile phones on people’s health. Supporting details: Enormous profit from the telecommunications industry prevents the bad results of findings from being made public.

18 Limiting the amount of time you spend on your mobile phone.
Moving the phone away from the body by using a handsfree kit or loudspeaking mode if available or why not consider texting as an alternative. Checking the SAR of a phone before you buy it, although the power which a phone transmits is controlled by the network and in many situations is far lower than its maximum power. Turning your phone off when you don’t need to use it .

19 Discussion Are there any ways to reduce the risk of being harmed when using mobile phones? 尽量减少通话时间 手机尽量不要放在口袋、腰间和床头 接通手机最初5秒避免贴近耳朵 使用耳机减少手机辐射 青少年儿童少用手机 手机信号弱时少听电话 怀孕(in a family way)早期最好少用手机 Tips

20 Language points

21 provide sb. with sth./provide sth. for sb.
supply offer vt.提供,装备,规定vi.为……作准备 vt.供给, 提供, n.补给,供给量(pl.) vt.提出,试图要做……,出价, n.提议 provide sb. with sth./provide sth. for sb. supply sb. with sth. /supply sth. to/for sb. offer sb. sth./offer sth. to sb./offer to do 提出建议 给……端上一杯茶 向……出100元买自行车 拒绝/接受建议 供水 家庭用品 给船装备雷达 offer advice offer sb. a cup of tea offer sb. 100 yuan for the bike refuse/accept an offer water supply household supplies provide the ship with radar

22 double 1). vt., vi.增加一倍；把……加一倍；使加倍 使收入增加一倍 double one's income 加倍努力
double one's efforts 他工作得很好，他们给他工资加了一倍。 He worked so well that they doubled his wages. The debt soon doubled. 债务不久就增了一倍。

23 2). adj. 双的；双重的；两用的；两个的 a double bed/room 双人床/房间 a man with a double character 有双重性格的人 speak with a double tongue. 说话口是心非 3). adv.两倍；加倍地 Many things now cost double what they did a few years ago. 许多东西比数年前贵了一倍。 pay double the price 加倍付钱

24 4). n. 二倍;加倍;相似者; 相似的人[物]; (网球,
乒乓球等的)双打 She is the double of her mother. 她和她妈妈长得一模一样。 mixed doubles 男女混合双打

25 2. Excuse me, where is the __________ of the train ? terminal
adj. 晚期的,终点的,每期的,学期的 n. 末端, 终点站 terminal cancer a terminal patient a terminal exam 癌症晚期 晚期患者 期末考试 1. When he was rushed to the hospital, he was examined ___________cancer. terminal 2. Excuse me, where is the __________ of the train ? terminal

26 be based on 以……为基础，基于……之上
One should always base one's opinions on facts. 一个人的意见应以事实为根据。 Judgment should be based on facts, not on hearsay. 判断应该以事实为依据,而不应该依靠道听途说。 Advertisements based on these facts have been printed in newspapers and magazines but have not helped much. 根据这些情况拟定的广告词登载在报纸和杂志上,但是效果不大。

27 concentrate vt., vi.集中（注意力、思想等）
concentrate on your work 集中精力工作 A driver should concentrate on the road when driving. 开车时驾驶员的注意力要集中在路上。 concentrate one's attention on /upon 把注意力集中在 We concentrated our attention on the task before us. 我们专注于眼前的任务。

28 This kind of paint can be exposed to all kinds of weather.
This study was conducted with 200 mice, half of which were exposed to radiation while the other half did not receive any radiation. be exposed to “被暴露于,经受” 这种油漆能经受各种天气的考验。 This kind of paint can be exposed to all kinds of weather. 作为战地护士, 她置身于各种各样的危险之中。 As a nurse in the war she was exposed to many dangers.

29 expose exposed adj. The house is in a very exposed position.
expose sb. to sth. phrasal verb [usually passive] to make it likely that someone will experience something harmful or unpleasant: About 800, 000 children are exposed to poisons each year. It is feared that people living near the power station may have been exposed to radiation.

30 高考链接 （2002上海） __________ to sunlight for too much time will do harm to one's skin. 　A. Exposed                   B. Having exposed 　C. Being exposed         D. After being exposed 区别:__________ to sunlight for too much time, your skin will be done harm to. 　A. Exposed                    B. Having exposed 　C. Being exposed          D. After being exposed

31 On the whole, women are not equal to men in physical strength.
The amount of radiation was equal to using a mobile phone for two half-hour periods per day. be equal to “ 等于,相当于” 总体上说，女性的体力不及男性。 On the whole, women are not equal to men in physical strength.

32 equal adj. （常与to连用）相同的 cut the cake into six equal pieces 把蛋糕等分成相同的六块 It is equal to me whether he comes or not. 他来不来对我都一样。 胜任的；经得起的 He is equal to this task. He is equal to doing this task. 他能胜任这项任务。

33 vt. 与……相等，等于 Three and five equals eight. 三加五等于八。 Eight times eight equals sixty-four. 八乘八等于六十四。 比得上 None of us can equal her. 没人比得上她。

34 previous adj. （常与to连用）以前的；先的
a day previous to Christmas 圣诞节的前一天 He has had no previous experience of this kind of job. 他从前没有做这种工作的经验。 I had collected material previous to writing. 我在写作以前先搜集了材料。 过早的；过急的 You have been a little too previous. 你有点过急了。

35 parallel adj. 平行的,类似的 平行线 相似(同)的事例
The road and the railway are parallel to each other. The road runs parallel with the railway. 在……之间作个比较 draw a parallel between …… 双杠 Peking is close to the fortieth parallel of north latitude(纬度). 北京靠近北纬40度。 parallel (lines) a parallel case n. 平行线,类似的人/情况,纬线 parallel bars

36 associate vt. 使发生联系, 使联合,联想
We associate China with the Greet Wall. 我们想起中国, 就联想到长城。 What do you associate with such a heavy snow? 这样一场大雪你有什么联想? be associated with与……有联系, 与……相关 人们常把威士忌同苏格兰联系起来。 Whisky is usually associated with Scotland. 你说的故事与他的家乡有关吗? Is your story associated with his hometown? be connected with

37 acknowledge accept the truth of sth.; admit sth. 承认 我承认他说的是事实。 I acknowledge the truth of his statement. 他被公认为是最佳选手。 He was acknowledged to be the best player. He was acknowledged as the best player. 大家都认为狗的嗅觉敏锐。 It is universally acknowledged that dogs have a good sense of smell.

38 Thus, the findings have not been made public, and the industry is saying that there is not enough evidence to do so. (P15) 因此,一些研究结果一直未与公开, 而电信公司却说证据还不够充分。 thus    adv. in this way: 就这样 Bend from the waist, thus. with this result: 因此 They planned to reduce staff and thus to cut costs.

39 高考链接 (2007湖北) Water can absorb and give off a lot of heat without big changes in temperature, thus creating a environment. A. peaceful B. sensitive C. common D. stable

40 Can we have faith in them and believe that they are being honest?
虽然约翰有缺点, 但我对他还是信任的。 I still have faith in John despite his shortcomings. 他仍然很有天赋, 但是他已经丧失了信心。 He still has great talent, but he has lost faith in himself.

41 Project Time As we have learnt how to make a statement and how to support it, now you need to complete the project to make a list of pros and cons.

42 Advantages and disadvantages of computer use/ MP3/ TV
Chose a topic and discuss with your partners on this topic. Then write a list of the advantages and disadvantages of ……

43 Advantages and disadvantages of computer use
Sample Advantages and disadvantages of computer use What are the advantages of using computers? What are the disadvantages of using them? Do you think computers are a danger to your health? Can you list some evidence to prove your statement?

44 Writing structure Introduction Advantages/ evidence
Disadvantages/evidence Conclusion

45 Useful expressions It is said that…/ It is acknowledged that…
Sb. believed/ thought that hold an opinion that additionally/ in addition on the other hand in the same way …

46 Homework 1. Write an article on advantages and disadvantaged of computer use. 2. Do Part B2 on page 103 of the Workbook. 3. Do Parts D1 and D2 on page 105 of the Workbook as homework.

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