交互性电子白板在学科教学的使用过程中要为课堂教学服务体现的是哪种原则()A.适度性原

题型:单项选择题

问题:

交互性电子白板在学科教学的使用过程中要为课堂教学服务体现的是哪种原则()

A.适度性原则

B.以学生为中心原则

C.适时性原则

D.知识共享原则

考点:教师信息技术知识竞赛教师信息技术知识竞赛题库
题型:单项选择题

It’s Friday evening. My daughters, 3 and 9, sigh(叹息) when I gently take the iPads away from their laps. One by one, our screens are turned off. We light the candles and sit down to have a big meal.

Most people in our lives know they will not be able to contact us by using computer or moblie  phones for 24 hours. And so it has gone, every week for three years. We call it our “Technology Shabbat(科技安息日)" which lasts from sunset on Friday to sunset on Saturday.

I first understood the importance of disconnecting in 2008, when my father was told that he

had got brain cancer. Some days he would have ony one good hour, and I wasn’t willing to be disturbed when I was with him, so I’d turn off my mobile phone.

Soon after, encouraged by National Day of Unplugging(全国断网断电日) on March 1st, my husband and I decided to unplug for one full day every week.

During our “Technology Shabbats”, time slows. Our Saturdays now feel like mini-vacations. We drive our car or ride our bike. We, with our kids, work in the garden, play board games and cook meals. I feel more balanced. I feel like a better mother, wife and person.

Keeping a balance between the good and the bad of technology is my lasting state. The technology we’ve created makes it possible for us to share knowledge and take in carious ideas all over the world. But the technology also take something away from us. When we stay up late at night linking(连接) from website to website or sending messages or e-mailing, we click again, and again, and again until we’ve overloaded(超负荷的).

When we rush into the time full of high technology, it's necessary for us to pay attention to what we are doing online and when we should go off.

I will always remember the most important thing in my family: “Technology Shabbat".

小题1: When is “Techtwhgy Shabbat' in the writer's family?

A.Only on Sunday.

B.From sunset on Friday to sunset on Saturday.

C.Only on Friday.

D.From sunset on Saturday to sunset on Sunday.小题2: The writer's family have “Technology Shabbat" every week mainly becausc they hope to ______.

A.save energy

B.enjoy life together

C.stay away from others

D.follow National Day of Unplugging小题3: What do the writers family NOT do during their “Technology Shubbats”?

A.They drive their car or ride bikes for mini-vacations.

B.They light the candles and sit down to have a big meal.

C.They work in the garden, play board games and cook meals.

D.They stay up late at night linking from website to website.

题型:单项选择题

如图所示,电源电压保持不变。闭合开关S ,当滑动变阻器的滑片P向右移动的过程中,电压表V1与电流表A示数的比值将

[ ]

A   变小      

B   不变      

C   变大     

D   无法判断

题型:单项选择题

风险管理的过程可划分为______等几个阶段

A.风险识别

B.风险衡量

C.风险处理

D.风险管理效果评价

E.风险规避

题型:单项选择题

创伤病人麻醉诱导时发生误吸,可采取()

A.预先放置粗胃管吸引

B.预先使用H2受体阻滞剂

C.表面麻醉清醒气管插管

D.压迫环状软骨法

E.预先诱发呕吐

题型:单项选择题

收发油品时,要严格控制油品的(),不能超过工艺规定的要求。

A.扬程

B.流速

C.温度

D.流量

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