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
50
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
WhywasTomveryangrylasttime?
Whyisthewomanworriedaboutthewashingmachine?
Whatdidthewomanthinkabouttheman?
Recentstoriesinthenewspapersandmagazinessuggestthatteachingandresearchcontradieteachotherthatresearchplaystoo
Whoarethetwospeakersintheconversation?
Today’spolicemeninlargecitiesthroughouttheworld【C1】______onmodeminventionstohelpthemintheirwork.Inmostplacesm
Whatisonethingtheapartmentbuildingwhichthewomandescribesdoesnothave?
WhilepeoplearoundtheworldaretalkingaboutthepreventionandtreatmentofAIDS,let’snot【C1】______thatwehavehadanold
Whyarethemanandthewomandiscussingtheapartment?
随机试题
Word2010的“自动更正”功能仅可替换文字,不可替换图像。
男性,32岁,司机,肥胖。饱食和大量饮酒后,发生剧烈腹痛、呕吐,呕吐物为所进食物,剑突偏左略有抵抗,平素健康。该患者可能的诊断是()。
下列关于医患关系特点的表述错误的是
A.局限性、暂时陛或瘙痒性的潮红斑和风团B.初期为散在性红斑或水疱,水疱壁透明C.患处皮肤增厚、浸润,色素沉着,表面粗糙,覆鳞屑D.分泌物干燥后形成蜜黄色或污黄色痂,预后无瘢痕E.炎症性的损害是红斑、脓疱、丘疹、结节、囊肿寻常型痤疮的临床表现是
下列哪些情形构成走私普通货物物品罪?
甲、乙合谋勒索丙的钱财。甲与丙及丙的儿子丁(15岁)相识。某日下午,甲将丁邀到一家游乐场游玩,然后由乙向丙打电话。乙称丁被绑架,令丙赶快送5万元现金到约定地点,不许报警,否则杀害丁。丙担心儿子的生命而没有报警,下午4点左右准备了5万元遂往约定地点。乙取得钱
某填充墙采用轻骨料混凝土空心砌块砌筑,下列做法错误的是()。
建设工程项目经济效果评价中的总投资包括()。
某报关企业受境内一企业的委托,在向海关办理货物进口申报手续时,按规定交验了报关单及随附的货运和商业单证。海关认为,以上单证还不足以证明该批货物的进口经营是否合法,要求报关企业另呈报委托单位的报关委托书和工商营业执照等文件。()
坚持理论创新和实践创新也就是在哲学上坚持()。
最新回复
(
0
)