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When Gretchen Baxter gets home from work as a New York City book editor, she checks her Blackberry at the door. “I think we are attached to these devices in a way that is not always positive,” says Baxter, who’d rather focus at home on her husband and 12-year-old daughter. “It’s there and it beckons(召唤). That’s human nature (but)…we kind of get crazy sometimes and we don’t know where it should stop.” Americans are connected at unprecedented(前所未有的) levels—93% now use cell phones or wireless devices; one third of those are “smart phones” that allow users to browse the web and check e-mails, among other things. The benefits are obvious: checking messages on the road, staying in touch with friends and family, efficiently using time once spent waiting around. The downside : often, we’re effectively disconnecting from those in the same room. That’s why, despite all the technology that makes communicating easier than ever, 2010 was the year we stopped talking to one another. From texting at dinner to posting on Facebook from work or checking e-mails while on a date, the connectivity revolution is creating a lot of divided attention, not to mention social anxiety. Many analysts say it’s time to step back and reassess (再评价). “What we’re going to see in the future is new opportunities for people to be plugged in and connected like never before,” says Scott Campbell. “It can be a good thing, but I also see new ways the traditional social construction is getting somewhat torn apart.” Our days are filled with beeps and pings—many of which pull us away from tasks at hand or face-to-face conversations. We may feel that the distractions(干扰) are too much, but we can’t seem to stop posting, texting or surfing. “We’re going through a period of adjustment and rebalancing, ” says Sherry Turkle and she wants to remind people that technology can be turned off. “Our human purposes are to really have connections with people,” she says. “We have to reclaim it. It’s not going to take place by itself.” 小题1:According to Paragraph 1, Gretchen Baxter thinks _____. A.the new technology always influences people’s life in a positive way B.the new technology always influences people’s life in a negative way C.the family isn’t that important compared to the new technology D.people are too dependent on the new technology to let go 小题2: The underlined word “downside” in Paragraph 2 probably means _____. A.advantage B.weakness C.strength D.effect 小题3: Which of the following is TRUE according to the passage? A.The wide use of mobile devices has nothing to do with the traditional social construction. B.Mobile devices play a less important part in American life. C.Mobile devices create a lot of divided attention and social anxiety. D.Many analysts speak highly of the wide popularity of mobile devices. 小题4: What can be inferred from the last paragraph? A.Something must be done to get connection with people in reality again. B.Using mobile services can help people get con- nection with each other. C.Mobile services have a strong impact on people’s life. D.The connection with people can happen naturally.
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举一反三
【单选题】第一届艺术体操世界锦标赛的举行时间()年,在匈牙利的布达佩斯举行了第一届艺术体操世界锦标赛,以后每两年举行一次。
A.
1962
B.
1963
C.
1964
D.
1965
【单选题】排球世界锦标赛是每几年举行一次( )。
A.
1 年
B.
2 年
C.
3年
D.
4 年
【多选题】链传动和带传动不同之处是,链传动要润滑。通常链传动的润滑方式有( )。
A.
人工滴油润滑
B.
人工扫油润滑
C.
油浴润滑
D.
以上都是
【多选题】链传动的润滑方式有
A.
人工定期润滑
B.
滴油润滑
C.
油浴或飞溅润滑
D.
压力喷油润滑
【简答题】链传动张紧的方法有哪些? 链传动的润滑方式有哪些?
【多选题】链传动的润滑方式有().
A.
工定期用油壶或油刷供油
B.
滴油润滑
C.
油浴润滑或飞溅润滑
D.
油泵压力喷油
【多选题】链传动的润滑方式有()
A.
人工定期用油壶或油刷供油
B.
滴油润滑
C.
油浴润滑或飞溅润滑
D.
油泵压力喷油
【简答题】链传动的润滑方式有( )。
【简答题】链传动的润滑方式有哪些?
【单选题】电流互感器在运行中必须使
A.
铁芯及二次绕组牢固接地
B.
铁芯两点接地
C.
二次绕组接地,铁芯不接地
D.
二次绕组及铁芯不接地
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