A. could travel B. could have traveled C. would travel D. would have traveled 相关知识点: 试题来源: 解析 D。从句“if the time machine had been invented earlier”是对过去的虚拟,主句应用“would have + 过去分词”,这里表示在过去假设下未来本能够发生的动作,用“would have traveled”。
I thought that it would befun to see what my father was like when he was 10 years old.I got into my time machine and keyed in the words,“1964, 11 Niven Road, Singapore" then pressed the button. Ina moment, I was in front of a house, 11 Niven Road.I saw four children looking ...
The term “time machine” , invented by Wells, is now universally used to refer to a vehicle transporting people into the far future.But could time travel actually be possible? Some scientists say yes, in theory. They propose using cracks in time and space called “wormholes”, which could...
【题目】If I Could Go Back in TimeOne of the most popular topics in the history of science fiction has been the idea of time travel.When I was a child, I often dreamed about a time machine that would allow me to "save" certain moments ofmy life, so that in case I failed to do...
needs to be equipped with a batteryD. can help the walker walk faster14. From the passage, we can leam that the electrical device canA. help housewives operate the washing machineB. make it much easier for us to go onlineC. produce more electricity than that invented by Larry RomeD. be...
The term"time machine", invented by Wells, is nowuniversally used to refer to a vehicle transportingpeople into the far future.But could time travel actually be possible? Somescientists say yes, in theory. They propose usingcracks in time and space called " wormholes", whichcould be used as...
By 1800,hand printers could not supply enough books to satisfy [使满意] the demand.Books were not printed fast enough when hand-made paper and wooden hand presses were used.Fortunately [幸运地], about this time, many machines were invented that aided[辅助的] in the mass production of such...
He invented a new explosive bomb to improve the peacetime industries of mining and road building, but saw it was used as a weapon of war to kill and injure his fellow men. During his useful life, he often felt he was useless. "Alfred Nobel," he once wrote of himself, "ought to ...
An improved version should be ready in one year. The developers hope the device will one day help developing countries; nearly twenty five percent of people around the world live without electric power. A similar product was invented in 2005 by Larry Rome of the University of Pennsylvania. He...
Computer science was invented by mathematicians and took some time before being its own thing. 44 The logical involvements of that time were of the first-order kind, and it cannot be left unsaid that the record of first-order modelling of what humans do when they draw conclusions from ...