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 theirwork 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 shouldrespect their parents ).On the other hand ,( parents also should show solicitue fortheir children). All these measures will certainly bridge the generation gap .