首页
登录
职称英语
The modern age is an age of electricity. People are so used to electric ligh
The modern age is an age of electricity. People are so used to electric ligh
游客
2023-07-15
9
管理
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 [br] 【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://tihaiku.com/zcyy/2839497.html
相关试题推荐
Haveyouever【B1】______whatotherpeopledowiththeiroldcomputers?Inth
Haveyouever【B1】______whatotherpeopledowiththeiroldcomputers?Inth
Haveyouever【B1】______whatotherpeopledowiththeiroldcomputers?Inth
Haveyouever【B1】______whatotherpeopledowiththeiroldcomputers?Inth
Haveyouever【B1】______whatotherpeopledowiththeiroldcomputers?Inth
Ifyourubcertainthingstogether,theirsurfacesbecome______staticelectric
YadinneededhundredsofpeopletohelphimbecausethepalaceofMasadawashug
YadinneededhundredsofpeopletohelphimbecausethepalaceofMasadawashug
YadinneededhundredsofpeopletohelphimbecausethepalaceofMasadawashug
YadinneededhundredsofpeopletohelphimbecausethepalaceofMasadawashug
随机试题
【S1】[br]【S7】popular∧→enough“形容词+enough+动词不定式”的固定结构常用于表示“……得足够……”,结合句意可知,应在popu
Whatcanwelearnabouttheman?[br][originaltext]M:Hi,Maria.Howhaveyou
Ifyouaskedmetodescribetherisingphilosophyoftheday,I’dsayitis
孕妇尿中出现的下列哪一种激素与胎儿胎盘功能关系最为密切A.皮质醇 B.孕酮
下列各项中,会对预计资产负债表中存货金额产生影响的有()。A.单位产品成本预算
不定期对火灾自动报警、固定灭火、防烟排烟等各类消防系统及灭火器等各类消防器材进行
甲市近期公交车扒窃案件频发,市公安局准备采取综合措施打击防控公交车扒窃违法犯罪活
(2016年真题)预期季末市场资金面较为紧张,可进行的交易策略是()。A.
A.卫食健字+4位年代号第××××号 B.国食健字G+4位年代号+4位顺序号
下列各项中,既征收消费税,又征收增值税的有()。A.批发销售卷烟 B.生产销售
最新回复
(
0
)