五、“十大句式”在新托福写作考试中的应用

　　(十)、原因句

　　1、Violent films can do harm to young people, because they contains numerous negative information. 暴力影片对年轻人是有害的，因为其中包含大量负面信息。

　　2、Human beings are chiefly responsible for wild animal extinction.  野生动物灭绝的主要责任在人类。

　　3、We should attribute (ascribe)medical advances to the animals which do substantial contributions to the experiment. 我们应该把医学的发展归因于动物对实验做出的巨大贡献。

　　4、Because of overpopulation, water shortage has become one of the most serious problems. 由于人口过剩，水短缺已经成为一个最严重的问题。

　　5、Owing to the fierce competition in today’s world, a great many young people find themselves under great pressure. 由于当今世界的激烈竞争，大量的年轻人承受巨大的压力。