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
The modern age is an age of electricity. People are so used to electric lights, radio, televisions, and telephones that it is ha
The modern age is an age of electricity. People are so used to electric lights, radio, televisions, and telephones that it is ha
admin
2013-03-11
69
问题
The modern age is an age of electricity. People are so used to electric lights, radio, televisions, and telephones that it is hard to【S1】______what life would be like without them. When there is a【S2】______failure, people grope about in candlelight, cars【S3】______in the streets because there are no traffic lights to guide them, and food【S4】______in silent refrigerators.
Yet, people began to understand how electricity works only a little more than two centuries ago. Nature has【S5】______been experimenting in this field for million of years. Scientists are【S6】______more and more that the living world may hold many interesting secrets of electricity that could benefit humanity.
All living cells send out tiny pulses of electricity. As the heart【S7】______, it sends out pulses of record; they form an electrocardiogram(心电图), which a doctor can study to determine how well the heart is working. The brain, too, sends out brain【S8】______of electricity, which can be recorded in an electroencephalogram(脑电图). The electric currents generated by most living cells are extremely small--often so small that【S9】______instruments are needed to record them. But in some animals, certain muscle cells have become so specialized as electrical generators that they do not work as muscle cells at all. When large numbers of these cells are linked together, the effects can be【S10】______.
A)spoils I)apparently
B)sensitive J)discovering
C)beats K)reasonable
D)waves L)power
E)astonishing M)hits
F)seemingly N)imagine
G)stop O)hesitate
H)determine
【S6】
选项
答案
J
解析
由are和后面的宾语从句可知,该空需填一个及物动词的进行时。该宾语从句的意思为生物界可能拥有对人类有益的有关电的很多有趣秘密,科学家应该是发现这一事实,所以选discovering。
转载请注明原文地址:https://kaotiyun.com/show/Fdu7777K
0
大学英语四级
相关试题推荐
A、Theylivedingroupsandwerecavepeople.B、ThereweresocietiesinIceAge.C、Theywereadvancedinarts.D、Theyhadasmart
A、Peoplecouldsendmoneyinpostofficesyearsago.B、Peoplecan’tsendmailsinpostofficesnow.C、Postofficesareoffering
Haveyouever【B1】______whatotherpeopledowiththeiroldcomputers?Inthepasttheyhaveoftenpaidhighpricesfortheirol
YadinneededhundredsofpeopletohelphimbecausethepalaceofMasadawashugeandtheworkwasdifficult.Yadinextendan_
Modernscientistsdividetheprocessofdyingintotwostages-clinicalortemporarydeathandbiologicaldeath.Clinicaldeatho
A、Childrenarehonestbynature.B、Childrenshouldbetaughttobehonest.C、Childrenshouldlearntotellharmlesslieswhenne
IsHigherEducationaBubble?MycolleagueatDemocracyinAmericadrawsattentiontoanongoingdebateoverthenatureofh
IsHigherEducationaBubble?MycolleagueatDemocracyinAmericadrawsattentiontoanongoingdebateoverthenatureofh
随机试题
历史老师在课上讲述南京大屠杀的情景时不禁义愤填膺,声音一度哽咽。这种情绪状态属于()。
患者女,30岁。反复出现抽搐发作两天,病前曾因工作上的事情与同事发生过争吵。抽搐发作为阵发性,发作时呼之不应,口角歪斜,对光反射存在,1分钟左右缓解,事后有时能回忆发作时的情况。脑电图检查结果正常,脑脊液压力为0.75kPa,白细胞数为10×109/L
医学人道主义的核心内容是
初治急性早幼粒细胞白血病首选的药物是
某市A区申某与谢某在B区共同违反了《治安管理处罚法》的相关规定,B区公安分局辖区内某派出所对谢某处以500元罚款,把申某移送到B区公安分局处理。B区公安分局对申某处以拘留15日的处罚。请回答下列问题:如谢某和申某均申请复议,下列有关复议机关的确定正确的
水泥密度试验时,两次试验结果的差值不应大于()kg/cm3。
下列选项中,关于“安全控制的目标”的论述,不正确的是()。
下列有关发行可转换债券的特点表述正确的有()。
4岁的洋洋独自在幼儿园玩滑梯,由于滑梯已损坏,摔下滑梯,造成颅脑中度损伤,轻度后遗症。带班姚老师说:“当时孩子们正在午睡,近两点,洋洋起来,自己一个人出去了,过了20分钟,见洋洋还没回来,急去寻找,结果在滑梯下发现。”(1)材料涉及的法律关系主体有哪些?
试研究级数(α>0)是绝对收敛、条件收敛还是发散?
最新回复
(
0
)