托福写作常见句型一：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。
托福写作常见句型二：非限制性定语从句
1、Undoubtedly, practical courses can be used to the reality, which is of vital importance to their development in the future. 毫无疑问，实用性课程可以用于实际中，这对于他们未来发展是非常重要的。 2、Children tend to imitate what they have seen and heard on mass media, which is sometimes dangerous and harmful. 孩子们倾向于模仿大众媒体上的所见所闻，这在有时是危险和有害的。 3、The majority of students believe that part-time jobs will provide them with more opportunities to develop their interpersonal skills, which may put them in a favorable position in the future job markets. 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, 这对他们未来找工作是非常有好处的.
托福写作常见句型三：让步句
1、This view is widely acknowledged;however，there is little evidence that smoking is beneficial to people’s health. 这个观点被广泛认可，然而，几乎没有证据表明吸烟对人们健康有利。
2、Although(While) the computer has been widely used in class, it cannot replace the role of teachers. 尽管计算机已经广泛用于课堂，但是它不能取代教师的作用。 3、Reasonable as the opinion sounds, it cannot bear much analysis. 虽然这个观点听起来有道理，但是它经不住分析 4、In spite of a lot of conveniences that cars bring to people’s life, they can create a series of serious problems. 尽管汽车给人们的生活带来了许多便利，但是也产生了一系列严重的问题。
托福写作常见句型四：It引导的句子
1、It is hard to imagine what our life would look like without computers in modern society. 很难想象如果现代社会没有了计算机，我们的生活会变成什么样子。
2、It is conceivable that being
