模块（一）Nowadays ,there are more and more XX in some big cities . It is estimatedthat ( 1 ).Why have there been so many XX ? Maybe the reasons can be listed as follows.The first one is that ( 2 ) .Besides,( 3 ) . The third reason is ( 4 ).To sum up ,the main cause of XX is due to ( 5 ) .It is high time that something were done upon it. For one thing ,( 6 ).On the other hand ,( 7 ). All these measures will certainly reduce thenumber of XX .注释：（1）用具体数据说明XX现象（2）原因一（3）原因二（4）原因三（5）指出主要原因（6）解决建议一（7）解决建议二 Generation gap between parents and children Nowadays , there are more and more misunderstanding between parents and children which is so- called generation gap . It is estimated that (75 percentages of parents often complain their children’s unreasonable behavior while children usually think their parents too old fashioned). Why have there been so much misunderstanding between parents and children? Maybe the reasons can be listed as follows . The first one is that ( the two generations, having grown up at different times, have different likes and dislikes ,thus the disagreement often rises between them) . Besides(due to having little in common to talk about , they are not willing to sit face to face ) . The third reason is (with the pace of modern life becoming faster and faster , both of them are so busy with their work or study that they don’t spare enough time to exchange ideas ).To sum up ,the main cause of XX is due to ( lake of communication and understanding each other) . It is high time that something were done upon it. For one thing (children should respect their parents ).On the other hand ,( parents also should show solicitue for their children). All these measures will certainly bridge the generation gap .