首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
下面有 3 篇短文,每篇短文后有 5 道题。请根据短文内容,为每题确定 1 个最佳选项。 Cell Phones: Hang Up or Keep...
下面有 3 篇短文,每篇短文后有 5 道题。请根据短文内容,为每题确定 1 个最佳选项。 Cell Phones: Hang Up or Keep...
admin
2020-12-24
41
问题
下面有 3 篇短文,每篇短文后有 5 道题。请根据短文内容,为每题确定 1 个最佳选项。
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.
The explosions around the world in mobile phone use make some health professionals worried. 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 worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.
On the other hand, why do some medical studies show changes in the brain cells of some people who use mobile phones? Signs of change in the tissues of the brain and head can be defecfed 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’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’s doctor didn’t agree.
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.
As the discussion about their safety continues, it appears that ifs 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’s wise not to use your mobile phone too often.
The word “detected” in paragraph 3 could be best replaced by
选项
A cured.
B removed.
C discovered.
D caused.
答案
C
解析
detect的意思是“觉察、发现”,故可用discover来代替。
转载请注明原文地址:https://ti.zuoweng.com/ti/hs9QKKKQ
相关试题推荐
CellPhones:HangUporKeepTalking Millionsofpeopleareusingcellphone...
CellPhones:HangUporKeepTalking Millionsofpeopleareusingcellphone...
CellPhones:HangUporKeepTalking Millionsofpeopleareusingcellphone...
CellPhones:HangUporKeepTalking Millionsofpeopleareusingcellphone...
CellPhones:HangUporKeepTalking? Millionsofpeopleareusingcellphon...
CellPhones:HangUporKeepTalking? Millionsofpeopleareusingcellphon...
共用题干 第三篇CellPhones:HangUporKeepTalking?Millionsofpeopleareusingce...
共用题干 CanMobilePhonesCauseDisease?1"Mobilephonekilledmyman,"scream...Ta
共用题干 CanMobilePhonesCauseDisease?1"Mobilephonekilledmyman,"scream...Th
共用题干 CanMobilePhonesCauseDisease?1"Mobilephonekilledmyman,"scream...Th
随机试题
男,36岁,突起昏迷,四肢瘫痪,双侧瞳孔“针尖样”缩小。其最可能的疾病是 A、
左边给定的是纸盒的外表面,下列哪一项能由它折叠而成?
政府计划为某贫困山村提供20年的教育补助,每年年底支付,第一年为15万元,并在往
下列环境属于社会环境的是()。
下列哪种生物碱能与盐酸生成难溶于水的盐
2008的2008次方+2009的2009次方的个位数是()。
暴雨:洪水:抗洪
商业秘密同传统知识产权相比,法律性质有何不同()A.商业秘密权利人享有对商业秘密的实际专有权。B.商业秘密权利人享有的实际专有权不受“地域性”和“时间性
知识点:抗精神病药物 判断抗精神病药物是否有效需足量使用至少A.2周B.3周C.4周D.5周E.6周
理财规划的必备基础是做好()。A:现金规划B:教育规划C:税收筹划D:投资规划