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
26
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 detected 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.
he 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/gxlQKKKQ
相关试题推荐
下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。 ADoctorinthe...
CellPhones:HangUporKeepTalking? Millionsofpeopleareusingcellpho...
CellPhones:HangUporKeepTalking? Millionsofpeopleareusingcellpho...
CellPhones:HangUporKeepTalking? Millionsofpeopleareusingcellpho...
CellPhones:HangUporKeepTalking? Millionsofpeopleareusingcellpho...
下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。
下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。
下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。
下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。
下面的短文后有2项测试任务:(1)第23~26题要求从所给的6个选项中为第1~4段每段选择1个最佳标题;(2)第27~30题要求从所给的6...
随机试题
下列哪项不属于扁骨?() A.肩胛骨 B.颅盖骨 C.肋骨 D.胸骨
关于肌肉自身因素对肌力的影响不正确的是 A.缺氧可降低肌肉的收缩能力 B.酸
关于腹膜解剖生理的叙述,正确的是 A、腹膜分为壁腹膜、脏腹膜、肠系膜和网膜四个
服务区别于产品的特点有什么()
普通高中演奏模块中培养学生演奏技能的正确方法是() A.增加演奏实践机会
国际评估准则102一调查和遵循主要规定了评估实施过程中应当注意的相关问题,其中(
在统计控制状态下,控制图上描点超出上控制限的概率约是()。 A.0.27%
关于抽样调查,下列叙述不正确的是( ) A.是指从总体中随机抽取一定数量观察
肛裂常发生于肛管的A:左侧B:左后线C:后前线D:前正中线E:后正中线
通信行政处罚应依据()进行。A.管辖权B.行政权C.领导权D.地方政府规定