题目

．（09年济宁一中反馈一）已知函数的定义域是，则函数的定义域是        A．         B．[0，2]         C．[-1，2]        D． 答案：答案：CIn one of my classes today we discussed the question of how our lives would be without a phone and I actually felt quite sad to hear how some kids these days cannot survive without their mobiles. Personally，I think nowadays we are controlled by our technology and pressurised（加压的）to keep up.So let's see some of the points that came up in the debate and see if our generation really is addicted to electronic connections rather than true communication.It is true that everything works at a fast pace these days，due to the quick access we have to pretty much anything and anyone. For example，you can contact someone who lives on the other side of the world within seconds. This is great if you think about bow connected we can stay to the people who are far away from us；however，on the contrary，can we be too connected to the people who are close to us? An argument arose（出现）about the fact that it is easier to message someone from your sofa than to meet them in person and talk. On one hand，it is easier and nice sometimes to carelessly chat to a friend this way．However，it is also lazier and rude to prefer to talk to someone on your phone rather than meeting up，if you are able to，in my opinion. Social skills are important to have and if you are not going to put effort into real-life communication，then you are not going to progress in this ability. Another point was that phones are very handy to look up something that you are wondering about. For example，if you don't know a word in another language,you can quickly and simply use a translator to help you out. This can be very helpful in many situations，but it can also make a person dependent on the internet to help with anything. This factor slightly takes away the diversity（多样性）“learning a language and speaking with people，as you are able to access everything you need by the web.All in all，this question is very interesting to consider for oneself as we become day by day more dependent on technology. We should just realize how much we really need to be connected by our phones while considering the benefits and damage it can cause us.【1】What can we infer from the first paragraph?A.They had a discussion about using phone.B.Few of us are controlled by technology.C.The writer was in high spirit to hold the discussion.D.True communication has become less.【2】What does the underlined phrase "is addicted to”in Paragraph 2 mean?A.depends too much onB.has something to do withC.falls into troubles ofD.moves on from【3】What's the writer's main purpose in writing this passage？A.To improve our social skills.B.To tell us the disadvantages of talking by phones.C.To persuade us to meet people who're close to us in person and talk.D.To ask us to just think its necessity when we use electronic connections.【4】Which of the following would be the best title for the passage?A.Can You Imagine Life without a Phone?B.Talking on Your Phone or Meeting Up?C.Does It Benefit You to Use Electronic Connections?D.Do We depend too Much on Electronic Connections?