在准备托福作文的时候，考生们常常会遇到这样的困难：平时背了很多高难度的词汇，可是真到用的时候还是只能想起那些低水平的词汇。很多人都存在这个问题，归根结底还是因为考生只是大概知道了那些高难度词汇的意思，不知道准确的搭配，因此，不确定用进文章是否正确。要解决这个问题，还是必须要广泛阅读，多看多积累，没事的时候翻一翻，按照例句多造几个句子，以便熟练使用。时间长了你会发现，有些好的句子会在你写文章的时候不知不觉的跳出来。
下面为大家提供十个有助于你拿高分的经典句型：
第一， 定语从句。
Bad books contain evil thoughts. In them, there might be much description about violence, superstition, and sex. source:veduchina
→ Bad books, in which there might be much description about violence, superstition, and sex, contain evil thoughts.
第二， 状语从句。
原因状语从句：常由because, as, since和for引导
Nonetheless, I am still in favor of space travel, for its merits far outweigh demerits.
让步状语从句：常由although, though, even though/ if, as long as和notwithstanding引导
Although this view is wildly held, this is little evidence that education can be obtained at any age and at any place.
条件状语从句：常由if, on the condition that和providing that引导
If you want to achieve something or intend to fulfill one of your ambitions, you must work hard, make efforts and get prepared. source:veduchina
时间状语从句：常由when和while引导
When it comes to education, the majority of people believe that education is a lifetime study.
目的状语从句: 常由so that和in order that引导
Millions of people have to spend more time and energy on studying new skills and technology so that they can keep a favorable position in job market.
第三， 宾语从句。
Many experts point out that, along with the development of modern society, it is an inevitable result and there is no way to avoid it. source:veduchina
第四， 同位语从句。
No one can deny the basic fact that it is impossible for average workers to master those high-technology skills easily.
第五，主语从句。
It is universally acknowledged that environmental pollution becomes one of the most serious problems in China or even the world as a whole. source:veduchina
第六，强调句: It is + 被强调的内容 + that
It is cars and factories that release a great deal of gases, polluting the environment.
第七，倒装句。
Only if the government will take some appropriate measures, will this intractable problem be tackled.
第八，被动语态。
Every means should be tried to protect the environment on which people live.
第九， 分词结构：包括现在分词和过去分词。
To be more specific, government should stage some relevant laws or regulations to severely punish the factory producing a great number of pollutants and the people littering or spitting deliberately.
第十，插入语。它通常由一个词、一个短语或一个句子构成,位置较为灵活,可置于句首、句中或句末,一般用逗号或破折号与句子隔开。
College students, lacking social experience, are easily cheated.
（摘自秦苏珊英语中心）
其实，太多的词汇和句子谁也记不住，即便是记住了，也不能熟练应用，所以，大家只需要熟练掌握几个高级句型和词汇，就会使作文水平瞬间提高几个档次。
