下面是留学群托福阅读栏目为大家整理的托福阅读难句类型，希望能对大家的托福阅读备考有所帮助!
1.定语(包含后置定语与定语从句)
2.同位语
3.并列结构
4.that引导的各种从句
5.插入结构
6.独立主格
7.倒装句
8.强调句
9.虚拟语气
对于不同类型的难句，把握主干的方法也不一样。以倒装句为例，主要有下列情况：
1.方位副词放在句首
Herein lay the beginning of what ultimately turned from ignorance to denial of the value of nutritional therapies in medicine。
2.介词放在句首
Among the species of seabirds that use the windswept cliffs of the Atlantic coast of Canada in the summer to mate， lay eggs， and rear their young are common murres， Atlantic puffins， black-legged kittiwakes， and northern gannets。
3. 形容词放在句首
Implicit in it is an aesthetic principle as well： that the medium has certain qualities of beauty and expressiveness with which sculptors must bring own aesthetic sensibilities into harmony。
4.过去分词放在句首
Accustomed though we are to speaking of the films made before 1927 as “silent”， the film has never been， in the full sense of the word， silent。
5.现在分词放在句首
Missing until recently were fossils clearly intermediate， or transitional， between land mammals and cetaceans。Sea dragon .com
句子倒装的目的主要有两个：
一是被提前的部分被强调，如上述的第四句：Accustomed though we are to speaking of the filmsmade before 1927 as “silent”，其中的accustomed按照正常语序应该放在are之后：Though we areaccustomed to speaking of the films made before 1927 as “silent”。之所以将accustomed提前，是为了强...