when the abacus was invented阅读下列短文,从每小题所给的 A、B、 C、D四个选项中选出一个最佳选项。 A British student has a new invention. It can make children do more 41 and spend less time watching TV. The technology is 42 “Square-
( A40. When was the abacus math first used in China? A. In the Han Dynasty. B. In the Tang Dynasty. C. In the Ming Dynasty. 相关知识点: 试题来源: 解析 A【答案】A【核心短语/词汇】the Han Dynasty 汉朝【翻译】算盘数学最早是在中国哪个朝代开始使用的?【解析】A.汉朝;B.唐朝;C.明朝。
— Do you know ? — In the 6th century. [ ] A. who is the abacus invented B. when the abacus is inventedC. when was the abacus inventedD. when the abacus was invented
--When ___ the abacus ___? -- In the sixth century by the Chinese people. A.is, invented B.did, invent C.was, invented D.does, invent试题答案 在线课程 C 解析此题考查的是被动语态,由be+过去分词。算盘是人发明的,它是动作的承受者。发明在过去,故用was invented,选C。练习册系列答案 初...
解答正确答案:C.根据句意可知算盘由中国人6世纪发明,主语abacus和谓语invent是被动关系,且in the sixth century表示过去的时间状语,则本句应用一般过去时的被动语态,即主语+was/were+done,故选择C. 点评本题考查被动语态,根据主谓关系判断语态,再根据时间状语确定时态即可作出选择. ...
was developed after the Worldwide Developers Conference 之后被开发出来的 根据Soon after, Masako developed "Hinadan" - -- one of Japan's first app games for the elderly.(不久之后, Masako开发 了“Hinadan”, 这是日本第一款面向老年人的应 用程序游戏。 )可知,这款游戏是为老年人开 发的,故选A ...
The bicycle was invented in 1880s in England. 中文意思 大约4000年前埃及人、中国人和欧洲人发明了伞. 在1854年意大利人Ignatio Porro发明了双筒望远镜. 1827年照了第一张照片的人Joseph Nicephore Niepce发明了照相机. 在19世纪80年代英国人发明了自行车.结果...
These were just small successes for them, but that was how they finally developed confidence. 28.What is the main purpose of the first paragraph? A.To prove the difficulty of math. B.To introduce the topic of the abacus. C.To...
Unit-1 When-was-it-invented复习课 教材分析单元目标 1.掌握词汇、短语、句型及被动语态的用法 2.学会谈论一些重要发明物的历史及用途 （词汇）1.invent v.发明 2.salty 3.sour adj.咸的 adj.酸的 4.ancientadj.古代的5.remainv.留下6.noticev.注意到7.produce century11.n.世纪active12.adj.活动的...
Macintosh computers were developed by the Apple Corporation. The first computer they made was just called the Apple 1. It was a wooden computer that...Become a member and unlock all Study Answers Try it risk-free for 30 days Try it risk-free Ask a question Our experts can answer your...