解析 A。during 表示在……期间,在科学展览期间,学生们正在认真展示他们的项目,用过去进行时 were presenting。B 选项 presented 是一般过去时,C 选项 have presented 是现在完成时,D 选项 had presented 是过去完成时,都不能体现出在期间正在进行的动作。
During the science fair, the students ___ their projects to the judges. A. were presenting B. presented C. present D. will present 相关知识点: 试题来源: 解析 A。“During the science fair”是一个时间段,在这个时间段里学生正在向评委展示他们的项目,用过去进行时“were presenting”。
During the science fair, Tom ___ notes carefully while his partner was presenting. A. took B. was taking C. takes D. is taking 相关知识点: 试题来源: 解析 B。“while”引导的时间状语从句,从句用过去进行时,主句也要用过去进行时,表示在伙伴展示的时候,汤姆正在认真做笔记,所以用“was taking...
Young Einsteins Dist. 204 students display experiments during science fair.(Neighbor)Byline: Tracy Boutelle Daily Herald Correspondent There probably were more than a few...Boutelle, Tracy
DS Rickman,M Guettabi - 《Journal of Regional Science》 被引量: 26发表: 2015年 Fair Weather Friends? The Impact of the Creative Class on the Economic Health of Mid-sized US Metropolitan Areas, 1990–2009 This paper considers,the relationship between creative class indicators and economic health...
* Section for China’s key science and technology achievements of the Ninth Five-Year Plan (1996 -2000) * Environmental protection and energy section * Section for exhibitors from other provinces and municipalities(自治县)and regions of China ●China World Trade Center * Exchange and Trade Fair(...
(1)推理判断题。根据第一段After her son competed at an international science fair,Lisa Ranney found that the fair could greatly make her son fond of science and know how tó learn about science.And then she began encouraging her students to attend it.
A.It has been put on the market. B.It is invented through trial and error. C.Two of its prototypes won awards at a science fair. D.The attachable pouch is the most important part of it. 4. Which of the following can best describe Fraser and Liam?
A.It has been put on the market.B.It is invented through trial and error.C.Two of its prototypes won awards at a science fair.D.The attachable pouch is the most important part of it.(4)Which of the following can best describe Fraser and Liam? CA.Humorous and ambi...
science programmes should feature more prominently on the Organization’s agenda and that, for that matter, more resources would be required to promote scientific cooperation and capacity-building in science, technology and innovation,not leastalsoto help popularize UNESCO’s scientific programmes. ...