3.4.4词根med=middle（中，中间的）【p52】
(1) This work demands your immediate attention.这件工作急需你立即处理.
(2) The media have a lot of power today.现在大众传播媒介有很大的力量.
(3) Sound travels through the medium of air.声音通过空气这一媒介传播
(4) She called in a mediator to settle the disagreement.她请了一位调停人来调解这次争执.
(5) Has nurse given you your medicine? 护士给你服过药了吗?
(6) I have to have a medical examination before going abroad. 出国前我必须进行体格检查.
(7) Chinese cities were much larger than those in medieval Europe, and Chinese trade routes are in all directions.中国的城市要比中世纪欧洲的城市大得多，中国的商路也四通八达.
(8) I was right in the middle of reading it when she phoned. 她打电话来时, 我正念到半截.
(9) We usually have a simple meal at midday. 我们的中午饭一般都比较简单.
(10) It is midnight and we are now closing down.时间已到午夜，本台现在停止广播.
(11) He drank off a glass of beer amid their cheers.在他们的欢呼声中，他把杯子里的啤酒一饮而尽.
(12) The Suez Canal joins the Mediterranean and the Red Sea.苏伊士运河连接着地中海和红海.
(13) I came here immediately after having my supper.我一吃完晚饭就来这里了.
(14) It's almost impossible to find him in the immense ocean. 在无边无际的海洋中要找到他几乎是不可能的.
(15) The metre is a measure of length. 米是长度单位.
(16) He studied jazz at school and enjoys improvisation. 他在学校研究爵士和享受着即兴演奏.