题目

一个修路队修一段高速铁路,第一天修了千米,第二天修了千米,第三天修了千米。三天一共修了多少千米? 答案：【答案】千米【解析】++=++=(千米)答:三天一共修了千米。 I love my laptop computer as it holds all of my writing and thoughts. But I know that there are times when I need to move away from these devices (设备) and truly communicate with others.Once, I teach a course called History Matters for a group of higher education managers. I want students to thoroughly study the material and exchange their ideas with each other in the classroom, I have a rule — no laptops, iPads, phones, etc. When students were told my rule in the class, some of them were not happy.Most students believe that my reasons for this rule include unpleasant experiences in the past with students misusing technology. There’s a bit of truth to that. Some students think that I am anti-technology. There’s no truth to that at all. I love technology and try to keep up with it so I can teach my students well.The real reason why I ask students to leave technology at the door is that I think there are very few places in which we can have deep conversations and truly exchange ideas. I want students to dig deep within themselves for outstanding ideas. I want them to push each other to think differently.I’ve been teaching my history class in this way for many years and students realize that with deep conversation and challenge, they learn at a level that helps them keep the course material beyond the classroom. I’m not saying that I won’t ever change my mind about technology use in my history class, but until I hear a really good reason for the change, I’m sticking to my plan. A few hours of technology-free conversation is just too sweet to give up.【1】What were some of the students in the history class unhappy with?A.the course materialB.others’ misuse of technologyC.the writer’s class ruleD.discussion topics【2】According to the writer, the use of new technology in the classroom may .A.help students to better understand historical topicsB.keep students from doing independent thingC.encourage students to have deep conversationsD.lead students to misuse the technology.【3】What can we learn from the last paragraph?A.The writer thinks highly of technology-free conversation in his class.B.The writer will change his teaching plan soon.C.The writer will give up teaching history.D.The writer won’t hold on to his belief.【4】What does the writer wants to tell us?A.Technology has different influences in different classes in college.B.Technology makes it difficult to have true communication in class.C.History classes can help students to develop their deep thinking.D.It is time for him to give up his teaching method in history class.