首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
So many people use the cell phone so frequently every day. But【C1】______little is certain about the health effects of its use. M
So many people use the cell phone so frequently every day. But【C1】______little is certain about the health effects of its use. M
admin
2015-08-14
51
问题
So many people use the cell phone so frequently every day. But【C1】______little is certain about the health effects of its use. Manufacturers【C2】______that cell phones meet government standards for safe radio frequency radiation emission, but enough studies are beginning to document a possible【C3】______in rare brain tumors(肿瘤), headaches and behavioral disorders in children to cause concern. So far, the evidence isn’ t【C4】______on whether the use of cell phones【C5】______to any increased risk of cancer. In a new trial, researchers asked 47 volunteers to【C6】______in a project to measure glucose(葡萄糖)consumption in the brain by scanning the brain to see how cells use energy. For both 50 minute scans, the volunteers had a cell phone【C7】______to each ear. During the first scan, the devices were turned off but for the second scan, the phone on the right ear was【C8】______on and received a recorded message call, although the volume was muted(消音)so the noise wouldn’ t bias the results. The results of the second scan showed that the【C9】______of the brain nearest to the device had higher rates of glucose consumption than the rest of the brain. The study shows that cell phones can change brain activity, and【C10】______a whole new avenue for scientific inquiry, though it doesn’ t say anything about whether cell phone radiation can cause cancer.
[A]conclusive[B]contributes
[C]derive[D]expresses
[E]fixed[F]immensely
[G]increase[H]maintain
[I]mission[J]participate
[K]particular[L]provides
[M]regions[N]surprisingly
[O]switched
【C5】
选项
答案
B
解析
空格前面为名词短语the use of cell phones,后面为介词to,因此空格处需要填入充当谓语的动词。空格位于whether引导的从句中,从句要表达的意思是手机的使用是否会增加患癌症的风险,因此空格处应填入一个表示“造成,导致”意思的动词,并且需要与介词to搭配,由此确定contributes为本题答案,意为“促成,造成”。根据从句的主语,此处需要填入的是第三人称单数形式的动词,因此过去分词fixed,switched以及动词原形derive,maintain,participate可以直接排除,expresses“表达”和pro—vides“提供”均不符合题意,也可以排除。
转载请注明原文地址:https://kaotiyun.com/show/Xpjd777K
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
Readthefollowingparagraphsinwhichfivepeopletalkaboutsmoking.Forquestions61to65,matchthenameofeachspeaker(6
Readthetextsfromanarticleinwhichfivepeopletalkedaboutsmoking.Forquestions61to65,matchthenameofeachperson
Today’spolicemeninlargecitiesthroughouttheworld【C1】______onmodeminventionstohelpthemintheirwork.Inmostplacesm
Today’spolicemeninlargecitiesthroughouttheworld【C1】______onmodeminventionstohelpthemintheirwork.Inmostplacesm
ThebasicflagoftheUnitedStatesisoneoftheworld’soldestnationalflags.OnlythebasicflagsofAustria,Denmark,Great
Unlesswespendmoneytospotandpreventasteroids(小行星)now,onemightcrashintoEarthanddestroylifeasweknowit,sayso
WhilepeoplearoundtheworldaretalkingaboutthepreventionandtreatmentofAIDS,let’snot【C1】______thatwehavehadanold
WhilepeoplearoundtheworldaretalkingaboutthepreventionandtreatmentofAIDS,let’snot【C1】______thatwehavehadanold
WhendidMissWangmovetoherapartment?
Whataretheguests’comments?
随机试题
在茶艺演示冲泡茶叶过程中的基本程序是:备器、煮水、备茶、温壶(杯)、置茶、()、奉茶、收具。
《始得西山宴游记》中总写西山高大特立的侧写语句是()
小儿语言发育三个阶段的顺序是()
甲有限责任公司设立了董事会,根据《公司法》的规定,下列说法中正确的是:
在一民事纠纷中,A区人民法院判决甲企业向乙企业承担相应的违约责任。甲企业拒绝执行判决,此时乙企业向A区人民法院提出强制执行申请,A区人民法院依法查封了甲企业中价值100万元的货物。同时,B区人民法院受理了其他债权人提出的对甲企业的破产申请。针对A区人民法院
观看海市蜃楼与峨嵋佛光要求导游人员()
学生的学习,一般地说主要是系统地学习()的过程。
关于我国的节气,以下说法不正确的是()。
Thebossbrokehisruleagainstsinginglastnight.
荷花(lotusflower)是中国的名花之一,深受人们喜爱。中国许多地方的湖泊和池塘都适宜荷花生长。荷花色彩鲜艳,夏日清晨绽放,夜晚闭合,花期长达两三个月,吸引来自各地的游客前往观赏。荷花具有多种功能,既能绿化水面,又能美化庭园,还可净化水质、减少污染
最新回复
(
0
)