But not until the American inventor Lee De Forest built the first amplifying vacuum tube in 1906 did we get the first radio as we know it. And the first actual radio broadcast was made on Christmas Eve of 1906. That’s when someone working from an experimental station in Brand Rock, ...
In 1897, Nikola filed patents for his radio, which were granted in 1900. However, Marconi was the first person to transmit radio signals across the Atlantic Ocean. Most people believe that the answer for the question: “When was the radio invented.” Comes down to your thoughts on the Tesl...
When was the first actual radio broadcast made? A. On Christmas Eve of 1906. B. On Christmas Eve of 1960. C. On Christmas Eve of 1895. D. On Christmas Eve of 1859. 如何将EXCEL生成题库手机刷题 > 下载刷刷题APP,拍照搜索答疑 > 手机使用 分享 反馈 收藏 举报 参考答案: A 复制 纠错...
Edison invented the light bulb. 爱迪生发明了电灯。 (2)invent还可以表示“虚构”。例如: The whole story was invented. 整个故事是虚构的。 (3) invent的名词形式有两个,一个是inventor(发明者;发明家),另一个是invention(发明物)。例如...
computer car calculator laptop telephone cellphone radio Presentation 1aLookatthethingsbelow.Inwhatorderdoyouthinktheywereinvented?Discussthemwithyourgroup.Thennumberthem[1-4](1=first,4=last)4 2 1 3 1bListenandmatchtheinventionswiththeyears.b c a Whenwasthe...invented?18761885 dac d 19271971 b ...
When was it built? 教学目标 1. 学习一些公共场所的标志和说明,要能正确理解,规范自己的行为。 2. 掌握本单元的词汇,特别是一些短语的用法。 3. 进一步复习一些电话用语和电话对话中时态的综合运用。 4. 进一步学习被动语态,特别是一般过去时态的被动语态谓语动词形式,它的肯定式、否定式、疑问式及其答语等。
Unit6Whenwasitinvented?SectionAReading 教学课件 被动语态(PassiveVoice)结构:be+V-p.p.一样现在时的被动语态:am/are/is+动词的过去分词一样过去时的被动语态:was/were+动词的过去分词 ManypeoplespeakEnglish.(主动语态)Englishisspokenbymanypeople Thenaughtyboybrokethewindowyesterday.(主动语态)Thewindowwas...
3.What was Jenny doing while Linda was sleeping? 琳达在睡觉的时候,珍妮正在干什么? While Linda was sleeping, Jenny was helping Mary with her homework. 琳达在睡觉的时候,珍妮正在帮玛丽做作业。 4. No wonder you didn’t ...
60. From the text we know that windmills . A. were invented by European armies B. have a history of more than 2800 years C. used to supply power to radio in remote areas D. have rarely been used since electricity was discovered 61. What was a new use for wind power in the late ...
( )1. Do you know when the radio ___? A.invent B. is invented C. was invented ( ) 2. The bridge ___ten years ago. A. was built B. has built C. built ( ) 3. Most of people don’t like the old, but I’m ___them . I love to talk with the old. A. the same as...