首页
登录
职称英语
Computers will develop more successfully because they enable us to fulfill tasks
Computers will develop more successfully because they enable us to fulfill tasks
游客
2023-12-31
22
管理
问题
Computers will develop more successfully because they enable us to fulfill tasks that
wasn’t able to undertake ever before
.
选项
A、couldn’t be undertaken
B、mustn’t have been undertaken
C、could never before have been undertaken
D、would never before have undertaken
答案
C
解析
(1)画线部分错误分析。
本题的考点为could表示“可能”的用法。can和could都可以表示“猜测”,相当于汉语的“有可能”,一般不分时态,具体区别如下:
①表示理论上的可能性,可用can(表现在)或could(表过去)。
e.g.Even experts can make mistakes.
即使是专家也可能会出差错。
②表示现实可能性,即可指将来可能性也可指现在可能性。
e.g.We could go to Japan this summer.
今年夏天我们可能要去日本。
③用语虚拟语气时只能用could。
e.g.If I could go with you,I should feel very glad.
假如我能同你们一起去,我会感到非常高兴。
④could have done表示过去本来可能发生的情况,而实际上没有发生,通常译为“本来可以”“本来可能”等。
e.g.I could have passed my examination easily but I made too many stupid mistakes.
我本可以轻易通过考试,但我犯了太多不该犯的错误。
本题是对过去的可能性所做的论断,所以应是could never before have been undertaken。
(2)选项分析。
本题中,因为是对过去的可能性所做的论断,所以排除选项A;must have done是对过去发生的事情的肯定猜测,与题意不符,故排除;D选项为虚拟语气在if非真实条件句中的用法,所以本题的正确答案是C。
转载请注明原文地址:https://tihaiku.com/zcyy/3320586.html
相关试题推荐
Inmostcases,youcantransplantatreesuccessfully,atanytime,ifyouf
Inmostcases,youcantransplantatreesuccessfully,atanytime,ifyouf
Inmostcases,youcantransplantatreesuccessfully,atanytime,ifyouf
Theofficersmadeitclearthattheywerelettinghergoonlybecausethatshew
Ican’ttellthetimebecausethe______oftheclockhavebeenremoved.A、hands
ManyofhiscolleagueseventuallyagreedthatEinstein’stheorywastenable.A、te
Inthedevelopingnations,thetechnologyhasthecapacitytoreachteachersin
Onceyouhavedevelopedagoodstudyhabit,trytokeepit______.A、livingB、aliv
Amicrophoneenablesasofttonetoamplify,thusmakingpossiblethegentleren
Tommygot100plusinhishistoryexaminationbecausehispaperwas______.A、extr
随机试题
TurnonChannelVandyoumightfindasingerinabaseballcap,baggyjean
Scientist:Inanexperiment,dogshadaccesstoahandletheycouldpulltorele
Alltheinvestigations______beforethedeadline,thestaffdecidedtohaveap
常见的酶蛋白的活性调节方式包括()。A.诱导契合 B.静电效应 C.共价催
关于红细胞平均值的叙述,哪项是正确的A.用红细胞平均值即可对各种贫血进行准确分类
B
8、几个班同时进行工作时,总工作票的工作班成员栏内,只填明各分工作票的负责人,不
为门诊重度慢性疼痛患者开具的麻醉药品控缓释制剂,每张处方不得超过A.一次常用量
临床在行颞下颌关节手术时,需注意保护位于髁突颈部深面的哪一动脉A.上颌动脉 B
选用出线构架宽度时,应使出线对构架横梁垂直线的偏角θ不大于下列数值()。 A.
最新回复
(
0
)