Largest Cell Phone Study

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11 关于使用蜂窝式电话安全性的研究

DATE=3-8-01
TITLE=SCIENCE REPORT - Largest Cell Phone Study
BYLINE=George Grow

        ( Start at 59")This is the VOA Special English SCIENCE REPORT.
Scientists have completed the largest study yet on the safety of (1)cellular¹ (2)telephones. The study (3)involved more than four-hundred-twenty-thousand people in Denmark.
The researchers found that cell phone users are no more likely than other people to develop (4)cancer. However, the study failed to end the (5)debate over cell phone safety. Critics say it will be years before evidence of cancers linked to cell phone use is (6)confirmed.
Cellular telephones may be the best-selling (7)electronic devices in the world. Cell phones are small, wireless² devices. They are held close to the user’s head during normal use. Their widespread use has led to increased concerns about possible health risks.
The (8)antennas³ on these phones produce low levels of radio wave radiation while in use. Most of the debate about the phones involves the amount of radiation they release. Scientists know that intense (9)electromagnetic (10)radiation can harm human tissue. But they are not sure if the radiation from cell phone antennas could cause serious damage.
The Danish Cancer Society and the International Epidemiology Institute near Washington, D-C organized the new study. Researchers identified Danes who began using cell phones between Nineteen-Eighty-Two and Nineteen-Ninety-Five.
The researchers compared this information with Danish health records. The researchers found that the cell phone users developed the expected numbers of cancers. They found no increased risk for cancers of the brain, nervous system, mouth or blood.
The Journal of the National Cancer Institute published a (11)commentary with the study. Robert Park of the American Physical Society wrote that cell phones are dangerous - when people use them while driving cars. He said the large number of people in the study makes it difficult to question the findings that cell phones do not cause cancer. Recently, two smaller American studies also found no increased cancer risk.
Not everyone agrees, however. For example, researcher George Carlo has written books about cell phone safety. He says other studies suggest that cell phone use may (12)damage genes⁴. He warns that cancers of the brain develop over many years.
This VOA Special English SCIENCE REPORT was written by George Grow.

(1) cellular[ 5seljulE ]adj.细胞的,多孔的; 蜂窝状的; 泡沫状的
(2) telephone[ 5telifEun ]n.电话, 电话机v.打电话
(3) involve[ in5vClv ]vt.包括, 笼罩, 潜心于, 使陷于
(4) cancer[ 5kAnsE ]n.癌, 毒瘤
(5) debate[ di5beit ]v.争论, 辩论n.争论, 辩论
(6) confirm[ kEn5fE:m ]vt.确定, 批准, 使巩固, 使有效v.确认, (基督教中)给...行按手礼
(7) electronic[Ilek5trRnIk]adj.电子的
(8) antenna[ An5tenE ]n.天线
(9) electromagnetic[IlektrEJ5mA^nItIk]adj.电磁的
(10) radiation[ 7reidi5eiFEn ]n.发散, 发光, 发热, 辐射, 放射, 放射线, 放射物
(11) commentary[ 5kCmEntEri ]n.注释, 解说词
(12) damage[ 5dAmidV ]n.损害, 伤害v.招致损害n.[律] (用复数)赔偿金

1 cellular   

adj.移动的；细胞的，由细胞组成的

参考例句：

• She has a cellular telephone in her car.她的汽车里有一部无线通讯电话机。
• Many people use cellular materials as sensitive elements in hygrometers.很多人用蜂窝状的材料作为测量温度的传感元件。

2 wireless   

adj.无线的；n.无线电

参考例句：

• There are a lot of wireless links in a radio.收音机里有许多无线电线路。
• Wireless messages tell us that the ship was sinking.无线电报告知我们那艘船正在下沉。

3 antennas   

[生] 触角，触须（antenna的复数形式）

参考例句：

• Marconi tied several antennas to kites. 马可尼在风筝上系了几根天线。 来自超越目标英语 第3册
• Radio astronomy today is armed with the largest antennas in the world. 射电天文学拥有世界上最大的天线。

4 genes   

n.基因( gene的名词复数 )

参考例句：

• You have good genes from your parents, so you should live a long time. 你从父母那儿获得优良的基因，所以能够活得很长。 来自《简明英汉词典》
• Differences will help to reveal the functions of the genes. 它们间的差异将会帮助我们揭开基因多种功能。 来自英汉非文学 - 生命科学 - 生物技术的世纪