七、句子类型（2）
　　4. 并列复合句
　　____, and____,which____.
　　Undoubtedly, practical courses can be used to the reality, and it is easier for university students to realize their potentials and talents, which is of vital importance to their further development in the future.
　　There are many dangers that one can face in a new and different environment and the best way to protect yourself is to be well aware of possible dangers before you depart.
　　5. 多重复合句
　　Many parents point out that children spend too much time playing computer games which have little educational value, so children should be prevented from computer games.
　　However, we must admit that it would be a mistake to neglect theoretical knowledge in that they are the cornerstones of many practical courses and help students cultivate their logical thinking and judgment.
　　许多人认为有国外学历的人比没有的人赚的多。
　　事实上，有无数大学毕业生报怨他们在学校里学到的知识却不能转变为有用的工作技能。
　　应该创造这样一种环境，孩子们可以充分发挥他们的才能和潜力，以便长大后为社会作出最大的贡献。
　　当机会到来的时侯，只有作好充分准备的人才会优胜于他们的同龄人，因为他们提前付出了艰苦的努力。
　　尽管这一观点被广泛接受, 很少有证据表明暴力犯罪率与大众媒体的暴力数量有直接关系。
　　大部分学生相信业余工作会使他们有更多机会发展人际交往能力, 而这对他们未来找工作是非常有好处的。许多市民抱怨城市污染严重, 以至于他们每天都要吸入有毒的气体, 这对他们的健康是十分有害的。