询问第一台计算机的发明时间,使用被动语态,故选 A (was; invented)。 2. 现在是九点,新闻已经结束了一段时间,使用现在完成时,故选 B (has been over)。 3. 询问结婚时间,使用动词“marry”,故选 D (marry)。 4. 狗的死亡让人难过,狗已经死了几天,使用现在完成时,故选 A (death; has been dead)...
When the first digital emoticon “:-)” was posted on Sept 19, 1982, by professor Scott Fahlman at Carnegie Mellon University, US, internet history was made. Now, there are more than 3,600 emojis available for us, noted CNN. “They offer things that words aren’t saying. They clarify ...
Although he tried covering his head in a scarf, it was not comfortable. After some thinking, Greenwood made wire into two circles and asked his grandmother to sew fur (缝制毛皮) on them. He then connected them with a steel headband (束发带) and the first earmuffs were invented! Wristies...
4. Put these things into the ___(篮;筐),please. 5. He was a___(职业的) basketball player afew years ago. 6. The teacher ___(分开;分散) the whole class into five groups and started the game. 7. Tom fell and___(几乎) broke his leg. 8. The thirty-first ___(奥林匹克运动...
Unit6 When was it invented?第四课时Section B (3a-self check)一、单项选择1.___ is allowed to get into this lab without Mr. Green’s permission.A.Somebody B.AnybodyC.Nobody D.Everybody2.In the past few years, great changes ___ in my hometown.A.take place B.took placeC.have taken...
二、完形填空现代科技How has technology made your life easier? Whenyou go to a shopping mall, you can 1 free Wi-Fithere. When you want to take a taxi, you can book one2 your phone. In fact, all of these things can beseen in a smart city.The 3 of a smart city was first suggest...
新素材前沿科技How has technology made your life easier? When you go to a shopping mall,you can enjoy free Wi-Fi there. When you want to take a taxi, you can order one with your phone. In fact, all of these things can be seen as the first step of a smart city.The ide a of a...
Last week, I went to the science and technology museum. I was greatly interested in a new kind of robot—Home Doctor. Home Doctor looks like a lovely girl, and it is about 1.2 meters tall. It is made from recycled materials, like glass and plastic. Home Doctor can do all kinds of ...
B.Adultsignoretheimportanceofplaytime. 30分钟能力强化组合练(十四) 第54页 54 C.Parentsprefertohomeschooltheirchildren. D.Technologyhelpschildrenlearnbetterathome. ( )3.What?stheschoolteachers?attitudetowardsthecampaign? A.Opposed. B.Cold. C.Enthusiastic. D.Favourable. ( )4.What?sthepassagemainlyabo...
When was the first computer mouse invented? When was the first inkjet printer invented? When was the first automobile made? When was the mechanical computer invented? When was the first piece of technology invented? When was the first jet engine invented? When was the steam locomotive invented?