A. when the abacus is invented B. when was the abacus invented C. when the abacus was invented 相关知识点: 试题来源: 解析 [解析]选C。考核宾语从句。宾语从句运用陈说语序, 排除B项, 由答句In the 6th century. 可知, 问句用过去时。反馈...
--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 暑...
【题目】--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 【答案】C 【解析】 试题分析:句意:---算盘是什么时候发明的?---由中国人在公园6世纪时发明。其一,算盘的发明是在过...
when the abacus is invented C. when was the abacus invented D. when the abacus was invented 29. As water is very important for us, we should stop people from A. polluting B. using C. filling D. crossing keyboard, but for some reason, I gave up. D. studying the river. 30. T...
when was the abacus invented D. when the abacus was invented 29. As water is very important for us,we should stop people from the river. A. pollutingB. usingC. fillingD. crossing 30. Three years ago my parents encouragedme keyboard,but for some reason,I gave up. A. studyB...
Unit6Whenwasitinvented? 1.Whenwasitinvented? Whowasitinventedby? What,situsedfor? 2.ThePassiveVoice: Be+动词的过去分词形式 3.beusedfordoingsth 九、教学反思: 本课主要话题是谈论重要发明的发明时间、发明者及用途。主要练习被动语态的句式用法。 难度较大,但是学生们对发明话题很感兴趣,所以学习积极性很...
1、Unit 9 When was it invented?,1.invent 2.salty 3.sour 4.ancient 5.remain 6.notice 7.produce 8.pleasant 9. throw 10. taste,11. n.世纪 12. adj.活动的 13. v.创造 14. v.敲 15. v.分开 16. prep.在的下面 17.v.(使)发展 18. v.上升,century,active,create,knock,divide,below,...
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...
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... Learn more about this topic: History of Computers | Definition & Types from Chapter 5/ Lesson 1 ...