阅读理解 I've always known my kids use digi

题型:阅读理解

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阅读理解

     I've always known my kids use digital communications gear (装置) a lot. But my cellphone bill

last month really grabbed my attention. My son had come up to nearly 2,000 incoming text messages,

and had sent nearly as many. Of course, he was out of school for the summer and communicating more

with friends from a distance. Nevertheless, he found time to hold down a summer job and complete a

college course in between all that typing with his thumb.

     I was even more surprised to learn that my son is normal. Teenagers with cellphones each send and

receive 2,272 text messages a month on average, Nielsen Mobile says.

     Some experts regret that all that keyboard jabber is making our kids stupid, unable to read

nonverbal cues such as facial expressions, gestures, posture and other silent signals of mood and

attitude. Unlike phones, text messaging doesn't even allow transmission of tone of voice or pauses,

says Mark Bauerlein  author of a book called The Dumbest Generation: How the Digital Age Stupefies

Young Americans and Jeopardizes (危害) Our Future.

     Beyond that, though, I'm not sure I see as much harm as critics of this trend. I've posted before on

how I initially tried to control my kids' texting. But over time, I have seen my son suffer no apparent ill

effects, and he gains a big benefit, of easy, continuing contact with others.

     I don't think texting make kids stupid. It may make them annoying, when they try to text and talk to

you at the same time. And it may make them distracted,__when buzzing text messages interrupt efforts

to noodle out a math problem or finish reading for school.

     But I don't see texting harming teens' ability to communicate. My son is as accustomed to nonverbal

cues as any older members of our family. I have found him more engaged and easier to communicate

with from a great distance, because he is constantly available via text message and responds with

faithfulness and speed.

1. What does the underlined word "distracted" in the fifth paragraph mean?

A. Confused.                          

B. Absentminded.

C. Comfortable.                        

D. Badtempered.

2. What would be the best title for this passage?

A. For Teens, Texting Instead of Talking              

B. For Parents, Caring Much for Their Kids

C. Advantages and Disadvantages of Texting            

D. The Effect of Communication

3. What is Mark Bauerlein's attitude towards texting?

A. It is so convenient for teens to communicate with others.

B. It is likely to cause trouble in understanding each other.

C. It is convenient for teens to text and call at the same time.

D. It will cause damage to the development of intelligence.

4. The author's attitude towards texting is ________.

A. suspicious                  

B. opposed

C. supportive                  

D. doubtful

5. According to the passage, which of the following statements is NOT true?

A. It is normal for a teen to send or receive 60 text messages a day.

B. Texting is a very popular way of communication among teens.

C. Parents don't mind teens' texting and talking at the same time.

D. The writer limited his son to sending or receiving text messages at first.

考点:故事类阅读
题型:阅读理解

(12分)如图所示,有一半径为r的圆形有界匀强磁场区域,磁感应强度为B,方向垂直纸面向里,其周围对称放置带有中心孔a、b、c的三个相同的平行板电容器,三个电容器两板间距离均为d,接有相同的电压U,在D处有一静止的电子,质量为m,电荷量为e,释放后从a孔射入匀强磁场中,并先后穿过b、c孔再从a孔穿出回到D处,求:

(1)电子在匀强磁场中运动的轨道半径R;

(2)匀强磁场的磁感应强度B;

(3)电子从D出发到第一次回到D处所用的时间t。

题型:阅读理解

汽车从甲站出发头20s前进了100m,然后以36km/h的速度匀速行驶2min,以后又用4s前进了50m,到了乙站停车.求:

(1)汽车在前20s内的平均速度.

(2)汽车在最后4秒内的平均速度.

(3)汽车在整个路程中行驶的平均速度.

题型:阅读理解

王某与赵某一直不合,一日两人相遇,又因言语冲突而发展到相互斗殴,被派出所双双拘留。因王某的表兄在派出所当民警,所以派出所将王某与赵某二人斗殴的责任归到赵某身上,并根据《治安管理处罚条例》,对赵某作出拘留7日的决定,而第二天就将王某释放。赵某对派出所的处罚决定不服,向派出所的上一级公安部门申请行政复议,复议机关欲将王某列为第三人,王某以赵某提起行政复议与自己无关为由,拒绝参加行政复议。对于本案中行政复议第三人的问题,下列选项中表述正确的是:

A.本案中的行政复议只是赵某与派出所之间发生的争议,并没有直接牵涉到王某的利益,所以王某不应作为第三人参加行政复议

B.王某的表兄因为没有公正执法,应作为行政复议的第三人参加本案的行政复议

C.王某可以作为第三人参加本案的行政复议

D.王某与其表兄应共同作为第三人参加本案的行政复议

题型:阅读理解

在藻类生长抑制试验中,当受试物为废水或环境水样时,应该如何开展正式试验?

题型:阅读理解

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