题干

下面几种是合情推理的是( )
①已知两条直线平行同旁内角互补,如果∠A和∠B是两条平行直线的同旁内角,那么∠A+∠B=1800
②由平面三角形的性质,推测空间四面体的性质
③数列
④数列1,0,1,0,…推测出每项公式

A:①②

B:②③

C:②④

D:③④

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C

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    What would your life be like without phones?

    In one of my classes today we discussed the question of how our lives would be without a mobile phone. I actually felt quite sad to hear how some kids cannot1 without their phones these days.2, I think nowadays we are controlled and 3by our technology to keep up. So let's see some of the points that 4 in the debate and see if our generation really is addicted(上瘾的) to electronic connections 5 true communication.

    It is true that everything 6 at a fast pace these days. For example, you can contact someone who lives on the other side of the world within 7. This is great if you think about how connected we can stay to the 8 who are far away from us. However, on the contrary, can we be too connected to the people who are 9 to us? An argument arose about the 10 that it is easier to message someone from your sofa than to meet them 11and talk. Social skills are12 to have and if you are not going to put effort into real-life13, then you are not going to 14 in this ability.

    Another point was that phones are very handy for 15 something that you are wondering about. For example, if you don't know a word in another language, you can 16 and simply use an on-line translator to help you out. This can be very 17 in many situations, but it can also make a person dependent on the 18.

    All in all, this question is very interesting to19 as we become day by day more dependent on technology. We should realize how much we really need to be connected with our phones while considering the 20 and damage it can cause us.