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
28
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
【C8】
选项
答案
O
解析
空格前面是动词was,后面是介词on,通过并列连词and之后的动词received可以断定,空格处所在的句子为拥有两个并列谓语的被动句,因此空格处需要填入动词的过去分词形式,与received构成并列成分。上句中提到第一轮扫描中,设备呈关闭状态,因此,第二轮的扫描中需要将设备开启,空格处应填入表示“开启,打开”等意义的动词,且需要与介词on搭配使用,由此可以确定,动词过去分词switched为本题答案,switched on意为“开启,打开”。空格处需要填入动词的过去分词形式,因此动词原形derive,maintain以及第三人称单数形式contributes,expresses,pro—vides均可以直接排除,另一个过去分词fixed意为“安装,固定”,与此处要表达的意思不符,也可以排除。
转载请注明原文地址:https://kaotiyun.com/show/Upjd777K
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
Whyiscornfeedingmillionsofpeopletoday?
Accordingtotheconversation,whatkindofweatherisusualforMarch?
Scientistshavebeentakingacloserlookatthelightinginourhomes,officesandvehicles,andthey’reseeingapossibleway
Christmaswasa【C1】______affair,whenIgrewup.TherewerejustmyparentsandI.Ivowed【C2】______somedayI’dmarryandhave
Whatisonethingtheapartmentbuildingwhichthewomandescribesdoesnothave?
HowaretheguestsgoingtoNewYork?
HowaretheguestsgoingtoNewYork?
GregLouganis:Thesewerethetrialsforthe1988OlympicsinSeoul,Korea.Untilthisdive,Ihadbeenahead.Butnow,some
WhendidMissWangmovetoherapartment?
GregLouganis:Thesewerethetrialsforthe1988OlympicsinSeoul,Korea.Untilthisdive,Ihadbeenahead.Butnow,some
随机试题
关于中国国家铁路集团增值税的征收管理政策,以下各选项表述正确的有()。
A.肾阳虚衰B.脾胃湿热C.脾肾阳虚D.风邪侵袭E.湿邪困脾
动作电位的“全或无”特性是指同一细胞的电位幅度
患儿,女,10岁。突然腹部钻顶样疼痛2小时来院。大汗淋漓,辗转不安;疼痛停止时又平息如常。查体:剑突偏向右方有压痛;无腹肌紧张及反跳痛。为明确诊断,应采取的检查是
衬有绝缘层的钢铁制电缆导管
________是指用人的智慧、知识等可以预测、控制的风险。
《国家学校体育卫生条件试行基本标准》中明确规定,初级中学、完全中学、高级中学无论班级数量多少均需匹配400米(环形)田径场一块。()
《中华人民共和国义务教育法》对义务教育的经费是如何保护的?
你下乡发放慰问金,记者全程跟踪报道,但是有村民表示慰问金发放存在猫腻,请问你怎么办?
[*]
最新回复
(
0
)