选择性必修二Unit4参考答案及部分解析参考答案1-5 ACDBA6-10 DCDDA11.which 12.created13.stops 14.built15.for 16.more professional17.rapidly 18.ninth19.themselves 20.has been lost21-25 DADAD 26-30 DABDD31-34 CBCB 35-39 GBAFE40.The information that makes people laugh41.It gives us a break from worrying and lets us look at our problems from a new perspective.42.When we laugh,we become distracted from our physical pain and it is the distraction thatincreases our pain tolerance.According to the second paragraph,not only the distraction but also the natural painkillerslike endorphins our body produces increase our pain tolerance.43.Humor can improve our interpersonal relationship because people tend to make friendswith people with a sense of humor.Humor can also help us deal with the conflicts andcommunicate with others better.One possible version:Good afternoon,everyone!We all have some boundaries that no one crosses in our daily life.But in our study,those boundaries should be broken and cooperative learning should beencouraged.This will help us complete our tasks effectively and develop our teamwork andcommunication skills.For cooperative study,we can find a partner and regularly share our strengths or problems,which will generate new ideas and motivation for learning.We can also set up groups withstudents having common interests to organize activities for sharing learning resources andoutcomes.We can always learn something new from others.That's all.Thanks!部分解析知识运用第一节主题语境:人与自我一一生活本文是记叙文。去年夏天,作者参加了一次团体旅行,这次旅行充满了难忘的经历。l.A。根据本段中的My experience going on an adventure last summer with Travel For Teens可知,作者跟随Travel For Teens踏上了为期两周的旅行。2.C。根据下文中的I did not get on the.flight.I would be missing out on activities可知,作者没有赶上航班而且可能会错过团队活动,因此作者的旅行一开始并不顺利。3.D。根据本段中的I did not get on the.flight,andl.a connection in Portugal可知,作者错过了团队乘坐的飞机,也错过了换乘的飞机。4.B。根据本段中的that I would be missing out on activities and that it would be..to makefriends可知,作者不仅担心会错过团队的一些活动,还担心旅行开始以后自己将会很难交到朋友。5.A。根据本段中的It was such a(n)…when I finally arrived in Florence and was greeted by