问题 阅读理解

阅读下列短文,将人名及其身份填在图画的相应方框内

       This is my family. My grandpa's name is Harry Brown. My grandma's name is Jean Brown. My

father's name is Jeff Brown. My mother's name is Helen Brown. Jeff and Helen are my parents. 

       I have a sister. Her name is Kate Brown. My name is Tom Brown.Iam ten. My sister is eight. 

按上图回答下列问题

1. How old is Tom Brown?

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2. Is that girl his sister?

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3. Is Helen Brown his grandmother?

________________________________________________

4. What’s his grandmother’s name?

________________________________________________

5. Is Jeff Brown his brother?

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答案

A. Grandmother, Jean Brown

B. Grandfather, Harry Brown

C. Mother, Helen Brown, Jeff’s wife

D. Father, Jeff Brown, Helen’s husband

E. Daughter, Kate, Tom’s sister

1. He is ten.

2. Yes, she is.

3. No, she isn’t. She’s his mother.

4. Her name is Jean Brown.

5. No, he isn’t. He’s Tom’s father.

问答题

如图为一种电磁继电开关,图中L为电磁铁线圈.L不通电时,继电器不吸合,如图a所示,三对常闭接点A1与A1’接通,A2与A2’接通,A3与A3’接通;三对常开接点B1与B1’、B2与B2’、B3与B3’均不相通.L通电时,继电器吸合,如图b所示,三对常闭接点A1与A1’、A2与A2’、A3与A3’均不相通;三对常开接点B1与B1’、B2与B2’、B3与B3’均接通.

某学校学生社团有一台用上述电磁继电开关成的智力竞赛的抢答显示系统(抢答机),如图c所示.图中S1、S2、S0是按钮式开关按下时接通,松手时自动弹起为断开.,该抢答机可供两个参赛队使用.主持人宣布问题,然后说“现在开始”以后,最先按下按钮的队的指示灯点亮,其余任何一个队再按按钮则无任何反应,而亮灯的队松开按钮后其指示灯依然点亮.若在主持人说“现在开始”前任何一个队违规提前按按钮,导致自己的指示灯点亮,主持人即可判定该队犯规.为了解除某队指示灯点亮状态,主持人只需按一下自己操作台上的按钮S0,即可恢复初始的待命状态.

(1)当按一下S2后,用若干个箭头标明电路中电流的走向.

(2)现在为满足三个队参加比赛,必须增加一个供第三队使用的线路,为此需将原线路改装,技术人员已经将部分线路连好,如图d所示,请你将尚未完成的接线继续接妥,使其整体成为一台供三个队参赛的抢答机.

问答题