题目内容
【题目】 ---I’m so tired after the long journey that I want to go to bed at once.
---You’d better ______ first and then have a rest.
A. take a walk B. take a message
C. take a break D. take a shower
【答案】D
【解析】
试题分析：句意：-长途旅行之后我太累了，我想马上睡觉。—你最好先冲个澡然后再休息。take a walk散步；take a message捎口信；take a break 休息；take a shower洗淋浴。所以选D。
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WARNING(警告): Holding a cell phone against your ear or putting it in your pocket may be bad for your health. This sentence is a warning that you’d better not put it close to you when a new phone is bought. Apple company, for example, doesn't want iPhones to come closer to you than 1.5 centimeters; Research In Motion, BlackBerry's producer, recommends 2.5 centimeters.
If cell phone use can cause health problems, the result will be very serious. Americans spend 2.26 trillion minutes chatting on cell phones every year, which brings $109 billion for the wireless businessmen.
Devra Davis, an epidemiologist(皮肤病专家)who has worked for the University of Pittsburgh, has published a book about mobile phone radiation(辐射)"Disconnect." Davis studies how often brain cancer happens during different age groups. As a result of mobile phone radiation, she finds that a big increase(增长)in brain cancer in the 20-to-29 age group and a drop for the older people.
Children are more easily hurt by radiation than grown-ups, Ms. Davis and other scientists point out. But no studies have yet been finished on cell phone radiation and children, she says.
Henry Lai, a research professor, began lab radiation studies in 1980 and found that mice exposed to(暴露在) radiofrequency（电波频率）radiation had destroyed DNA in their brains.
Ms. Davis recommends using wired earphones（有线耳机）or the phone's speaker. Children should send text messages rather than call, she said, and pregnant women should keep phones away from their bodies.
It's to your health to use cell phones | |
from different companies. | ● Apple company using cell phones at least 1.5 centimeters. |
● Motion, BlackBerry's producer 2.5 centimeters. | |
Theof research from different areas | ● Devra Davis pointed out in the book "Disconnect" that people in the 20-to-29 age are more likely to have brain cancer than older people of mobile phone radiation. |
● Henry Lai found that exposed to(暴露在) radiofrequency（电波频率) radiation had destroyed DNA in their brains. | |
Ms Davis'son how to use the cell phone safely | ●Children should send text messages of call. |