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[主观题]
No one can use cell phones in any areas at the hospital ______ equipment might be affected
by the interference from cell phones.
A．that
B．which
C．where
D．what
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题目内容
（请给出正确答案）
A．that
B．which
C．where
D．what
答案
更多“No one can use cell phones in any areas at the hospital ______ equipment might be affected”相关的问题
第1题
第二篇 Cell Phones : Hang Up or Keep Talking？
Millions of people are usingcell phones today. In many places it is actually considered unusual not to useone. In many countries, cell phones are very popular with young people. Theyfind that the phones are more than a means of communication-having a mobilephone shows that they are cool and connected.
The explosions around theworld in mobile phone use make some health professionals worried. Some doctorsare concerned that in the future many people may suffer health problems fromthe use of mobile phones. InEngland.there has been a serious debate about this issue. Mobile phone companies areworried about the negative publicity of such ideas. They say that there is noproof that mobile phones are bad for your health.
On the other hand, why dosome medical studies show changes in the brain cells of some people who usemobile phones？ Signs of change in the tissues of the brain and head can bedetected with modern scanning(扫描) equipment. In one case, atraveling salesman had to retire at a young age because of serious memoryloss.He couldn't remember even simple tasks. He would often forget the name ofhis own son. This man used to talk on his mobile phone for about six hours aday,every day of his working week,for a couple of years. His family doctorblamed his mobile phone use,but his employer's doctor didn't agree.
What is it that makes mobilephones potentially harmful？ The answer is radiation. High-tech ma- chines candetect very small amounts of radiation from mobile phones. Mobile phonecompanies agree that there is some radiation,but they say the amount is toosmall to worry about.
As the discussion about theirsafety continues,it appears that it's best to use mobile phones less often. Useyour regular phone if you want to talk for a long time. Use your mobile phoneonly when you really need it. Mobile phones can be very useful andconvenient,especially in emergencies. In the future, mobile phones may have awarning label that says they are bad for your health. So for now,it's wise notto use your mobile phone too often.
People buy cell phones for the following reasons EXCEPT that
A.they're popular
B.they're usefuL
C.they're cheap
D.they're convenient
第2题
听力原文： (33)Researchers report that doing two or more things at once may decrease efficiency and actually take extra time switching from one task to another. In the most severe cases, it can even mean the difference between life and death.
In the study, four groups of young adults carried out a series of tasks and switched between different tasks, some complicated, such as solving math problems, and some more familiar, such as identifying geometric shapes. (34)The researchers found that time was lost in just switching from one task to another, and that time costs increased with the complexity of the tasks. “For each aspect of human performance—perceiving, thinking and acting people have specific mental resources whose effective use requires supervision through executive mental control,” said the lead author, David Meyer in materials provided with the report.
So-called“ multitasking” is becoming increasingly common because of cell phones and computers. the researchers point out, but it may just be adding wasted time and inefficiency to our days. A mere half second of time lost to task switching can mean the difference between life and death for a driver using a cell phone, Meyer said. (35)The authors say the research should make employers and employees think twice before implementing multitasking.
(30)
A．Multitasking is inefficient and wastes time.
B．Multitasking is a matter of life and death.
C．Multitasking is the process of executive control.
D．Multitasking is becoming increasingly common.
第3题
请根据短文内容，回答题。
Cell Phones: Hang Up or Keep Talking？
Millions of people are using cell phones today. In many places it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication--having a mobile phone shows that they are cool and connected.＜br＞
The explosions around the world in mobile phone use make some health professionals worded.＜br＞
Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worded about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.＜br＞
On the other hand, why do some medical studies show changes in the brain cells of some who use mobile phones？ Signs of change in the tissues of the brain and head can be deteeted with modern scanning (扫描) equipment. In one case, a traveling salesman had to retire at a young age because of serious memory loss. He couldn&39;t remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer&39;s doctor didn&39;t agree.＜br＞
What is it that makes mobile phones potentially harmful？ The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.＜br＞
As the discussion about their safety continues, it appears that it&39;s best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it&39;s wise not to use your mobile phone too often.
People buy cell phones for the following reasons EXCEPT that__________. 查看材料
A.they"re popular.
B.they"re cheap.
C.they"re useful.
D.they"re convenient.
第4题
听力原文： Every year, hand-held devices seem to get smaller and add new features. This year, there's another new addition. Gadgets have gone wireless. Here is one of the most intriguing wireless gadgets available this fall. Samsung has released a new accessory that completes any phone-gaming experience. Designed for the Samsung A600, the game pad brings the familiar hand-held controller feel of computer games to the phone. It also includes features suggesting that the primary use of a cell phone is for making calls. Games will automatically pause for incoming calls, and the phone can be charged during gaming, thanks to a special port on the game pad.
What is being advertised？
A．Digital cameras.
B．A console game.
C．A telephone service.
D．A mobile phone.
第6题
Cell Phones
1．Believe it or not，cell phones have been around for over a quarter of a century．The first commercial cell phone system was developed by the Japanese in 1979，but cell phones have changed a lot since that time．The early cell phones were big and heavy but they have developed into small and light palm sized models．There have been huge developments in their functions，too：we have had call forwarding，text messaging，answering services and hands-free use for years，but now there are countless new facilities，such as instant access to the Internet and receiving and sending photos．
2．Cell phones have become very common in our lives：recent statistics suggest as many as one in three people on the planet now have a cell phone，and most of them say they couldn&39;t live without one． Cell phones are used in every area of our lives and have become a necessary tool，used for essential arrangements，social contact and business．They have made it easier to call for help on the highway．They have made it possible to keep in touch with people“on the move”-when people are traveling．
3．Cell phones have made communication easier and have reduced the need for family arguments!We can use cell phones to let our family know we&39;ll be late or if there&39;s a sudden change of plan or an emergency．Cell phones have eased the worries of millions of parents when their teenagers are out late：they can now contact their children at any time．
4．This does not mean that cell phones are all good news．They have brought with them a number of new headaches for their owners：it costs a lot to replace stolen phones，something that is becoming a frequent occurrence，and have you ever seen such huge phone bills？More serious，however，is the potential health problem they bring：there are fears that radiation from the phones may cause brain tumor(肿瘤)． This may be a time bomb waiting to happen to younger people who have grown up with cell phones that they simply can&39;t live without!
Paragraph 1______
A．Cell phones and the family B．Commercial cell phone systems C．Cell phones in everyday life D．Cell phones for teenagers E．History of cell phones F．Problems with cell phones
Paragraph 2______
A．Cell phones and the family B．Commercial cell phone systems C．Cell phones in everyday life D．Cell phones for teenagers E．History of cell phones F．Problems with cell phones
Paragraph 3______
A．Cell phones and the family B．Commercial cell phone systems C．Cell phones in everyday life D．Cell phones for teenagers E．History of cell phones F．Problems with cell phones
Paragraph 4______
A．Cell phones and the family B．Commercial cell phone systems C．Cell phones in everyday life D．Cell phones for teenagers E．History of cell phones F．Problems with cell phones
Nowadays cell phones are equipped with______．
A．a necessity B．an emergency C．a number of new headaches D．family arguments E．big and light palm-sized models F．countless new facilities
Cell phones are common in our lives and have become______．
A．a necessity B．an emergency C．a number of new headaches D．family arguments E．big and light palm-sized models F．countless new facilities
We can use cell phones to communicate with othors when we encounter______．
A．a necessity B．an emergency C．a number of new headaches D．family arguments E．big and light palm-sized models F．countless new facilities
In spite of many benefits，cell phones have brought for their owners______．
A．a necessity B．an emergency C．a number of new headaches D．family arguments E．big and light palm-sized models F．countless new facilities
请帮忙给出每个问题的正确答案和分析，谢谢！
第7题
The lithium batteries are becoming improper for the cell phone because ______.
A．there is a television in the phone
B．it is inconvenient to use
C．it can't provide enough power
D．people have found substitutes
第8题
How long is this cell phone guaranteed？()
A、 No problem
B、 You can refund it in 7 days and exchange it in one year
C、 Don’t mention it
第9题
Tanning Parlors Take Heat
People who seek a glamorous tan through sun lamps may double their risk of developing Common types of skin cancer, according to a new study that found the risk was highest for those who start at a young age.
The study, appearing in the latest issue of Journal of the US National Cancer Institute, concluded that people who use tanning devices were 1.5 to 2.5 times more likely to have common kinds of skin cancer than were people who did not use the devices. The study confirmed what doctors have long suspected-that sun lamp use increases the risk of basal cell and squamous cell skin cancers, said Margaret R. Karagas, first author of the study.
Either going to the tanning parlor, or getting an infrequent sunburn can seriously damage the skin, said Dr. James Spencer, vice chairman of the department of dermatology at Mount Hospital, but the small day-to-day exposure is worse for the skin in the long run.
Joseph A. Levy, vice president of the International Smart Tan Network, however, said occasional sunburn "is a risk factor in all forms of skin cancer and intermittent sunburn is what the tanning industry is trying to stop. '
In the study, Karagas and her colleagues interviewed 603 basal cell skin cancer patients and 293 with squamous cell skin cancer. They talked to 540 control subjects who did not have either type of skin cancer.
About 1 million Americans are diagnosed annually with skin cancer. Among those skin cancer patients, about 80 percent are with basal cell skin cancer, 16 percent, with squamous cell skin cancer and 4 percent with melanoma-the most serious form. of skin cancers. Back to the interviewed patients, 190 reported that they had used tanning devices at some time. In the control groups, only 75 had used such devices. Karagas said a statistical analysis shows that those who used tanning equipment were 2.5 times more likely to get squamous cell skin cancer than those who had not used the devices. For basal cell cancer, the risk was 1.5 times greater.
The risk was highest for those who first used the tanning devices before the age of 20, said Karagas. For this group, the squamous cell cancer risk was 3.6 times greater than that of the controls while the basal cell cancer risk was 1.3 times greater.
The passage confirms that using tanning equipment is harmful to one's health.
A. Right
B. Wrong
C. Not mentioned
