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Are Cell Phones Dangerous? Pre-reading Vocabulary

Word

Meaning

conductedverb

Carried out with control

definitive adj

complete; well understood

device noun

a thing that people use for a specific purpose

err on the side of caution idiom

take the necessary precaution due to a possible risk

funded verb

paid or partially paid for

Gaming consolesnoun

electronic devices that allow people to play video games

hazardousadjective

dangerous; could cause injury or health problems

illustrateverb

show

logical adj

makessense

Longterm exposurenoun

the use or close proximity to something over a long period of time

mobilephone noun

a wireless phone that can be carried with you out of the home and office

Potential noun

Good possibility

radiationnoun

a type of energy that is transmitted as waves or rays

tissue verb

group of cells in the body that work together

tobacco noun

dried leaves found in cigarettes

Are Cell Phones Dangerous? Reading

Is talking on a cell phone hazardous to your health? It is difficult to know for sure. Some research suggests that heavy users of mobile phones are at a greater risk of developing brain tumours. However, many other studies suggest there are no links between cancer and cell phone use.

The main problem with the current research is that mobile phones have only been popular since the 1990s. As a result, it is impossible to study the long term exposure of cell phone use. This concerns many health professionals who point out that many cancers take at least 10 years to develop. Another concern about these studies is that many have been funded by those who benefit financially from the cell phone industry.

Many cancers take ten years to develop.

Over three billion people use cell phones on a daily basis, and many talk for more than an hour a day. Cell phone antennas are similar to microwave ovens. While both rely on electromagnetic radiation, the radio waves in cell phones are lower in radio frequency (RF). Microwave ovens have enough RF to cook food and are therefore known to be dangerous to human tissues. However, the concern is that the lower frequency radio waves that cell phones rely on may also be dangerous. It seems logical that holding a heat source near your brain for a long period of time is a potential health hazard.

Cell phones get hot when they are used for a long period of time.

Some researchers believe that other types of wireless technology may also be dangerous to human health, including laptops, cordless phones, and gaming consoles. Organizations that are concerned about the effects of Electromagnetic Radiation suggest replacing all cordless devices with wired ones. They say that many cordless phones emit dangerous levels of EMR even when they are not in use. They even suggest keeping electronic devices, such as computers and alarm clocks out of bedrooms, or at least six feet from your pillow.

Other wireless technology may also be hazardous to our health.

A growing number of health professionals worldwide are recommending that cell phone users err on the side of caution until more definitive studies can be conducted. They recommend that adults use head sets or speaker phones and that children and teens, whose brain tissue are still developing, use cell phones only for emergencies. Concerned medical experts use the example of tobacco to illustrate the potential risks. Many years ago, people smoked freely and were not concerned about the effects of cigarettes on their health. Today, people know that cigarettes cause lung cancer, though it is still unknown exactly how or why. Some doctors fear that the same thing will happen with devices such as cell phones.

Vocabulary quiz

This quiz is based on this cell phone vocabulary page.

Начало формы

1

Another word for dangerous is …

a)      logical  b) hazardous    c) potential      d) definite

2

The device used for playing video games is a gaming …

a)      mobile   b) radiator  c) console   d) exposure

3

The term "funded" means …

a)      helped pay for  b) underpaid   c) on sale   d) expensive

4

Microwaves are a type of …

a)      tissue    b) radiation   c) mobile   d) cell phone

5

A synonym for "to show" is …

a)      to conduct    b) to illustrate    c) to device    d) to fund

Конец формы

Reading comprehension quiz

This quiz is based on this cell phone reading page.

Начало формы

1

According to the article, do cell phones lead to brain tumours? 

a)      Yes, there is definite proof.  b) No, there is no link.  

c) It`s too early to know sure

2

Why does the article mention the 1990s? 

a)      This is when the mobile was invented.  b) This is when cancer was linked to mobiles.  c) This is when cell phones became popular. 

d) This is when gaming consoles were invented.

3

Why does the article mention microwave ovens? 

a)      These device also use EMR. b) Microwaves cause brain tumours.

c) Microwaves will soon be wireless.  d) They have been around for more than 10 years.

4

Which of the following is NOT mentioned in the article? 

a)      Video game console.  b) televisions  c) wireless phones d) laptops

5

How is cell phone use compared to tobacco use in this article? .

a)      They both cause brain tumours.  b) Long term studies are required to link it to cancer.   c) They are equally hazardous to your helth.

d) They both affect adults rather than children

Конец формы

Grammar quiz

When writing numbers it is important to be consistent within one essay or document. Here is a guideline:

  1. Numbers one through nine should be written out.
  2. Numbers 10 and up should be written as numerals.
  3. At the beginning of a sentence numbers should be written out. (Six people had cell phones in our class.)
  4. Large numbers should be written in the simplest form possible: three million; 345,987
  5. When you do write numbers such as 22 or 145 use a hyphen: twenty-two; one-hundred and forty-five
  6. If you have more than one number in a sentence, choose one format and stick with it: There are five boys and thirteen girls in our class.
  7. Use an apostrophe before a set of years ('90s) or not at all (1990s). Do not put it between the year and s (1990's).

Using the above rules as a guideline, spot the problems in these sentences:

  1. The main problem with the current research is that mobile phones have only been popular since the 1990's.
  2. This concerns many health professionals who point out that many cancers take at least ten years to develop.
  3. Over 3,000,000,000 people use cell phones on a daily basis, and many talk for more than 1 hour a day.
  4. They even suggest keeping electronic devices, such as computers and alarm clocks, out of bedrooms - or at least 6 feet from your pillow.

 

 

 

 

 

Answers

  1. The main problem with the current research is that mobile phones have only been popular since the 1990s.
  2. This concerns many health professionals who point out that many cancers take at least 10 years to develop.
  3. Over three billion people use cell phones on a daily basis, and many talk for more than one hour a day.

They even suggest keeping electronic devices, such as computers and alarm clocks, out of bedrooms - or at least six feet from your pillow.

Are Cell Phones Dangerous? Topics for Discussion and Essay-writing

Here are some ideas for you to discuss or write about.

  1. Do you use a cell phone? If yes, how much time do you spend on it? Do you think your health is at risk?
  2. Besides a cell phone, what type of wireless technology do you use? Do you feel safe using it?
  3. Are you the type of person who errs on the side of caution, or do you take risks?
  4. If your doctor told you not to use your cell phone for long periods of time would you agree?
  5. Do you think children and teens should have their own cell phones? Why or why not?

 

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Текст и работа с текстом на английском языке

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09.01.2015

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