①So…that….以至于

　　So big is the classroom that it may hold ten thousand people.

　　So fast does he run that the train couldn’t catch up with him.

　　② As…as(more…than…) 比较结构

　　I run as fast as he did-----I run as fast as did he.

　　③表示地点、位置、范围、处所的状语或表语提前至句首

　　My sister is among those students.----Among those students is my sister.

　　④分词或形容词短语提前至句首

　　主语(+定语)+be+形容词/过去分词/不及物动词现在分词+介词+名词

　　主语(+定语)+be+及物动词现在分词+n.

　　E.g. Contrary to/coincident with the opinion of many people is my heartfelt (忠心的) objection to/agreement with the idea that students should study together with classmates.

　　Those people/parents who hold the opinion that money is the only symbol of success are satisfied with/contented with/interested in/worried about/opposed to their children finding a high-paying and long-working job.------------Satisfied with/contented with/interested in/worried about/opposed to their children finding a high-paying and long-working job are those people/parents who hold the opinion that money is the only symbol of success

　　Arguing for those students living outside the campus are those people who hold the opinion that independence is the most critical characteristic of a university student

　　⑤形容词+though/as+主语+谓语+主句

　　Rich though he is， he is unhappy.

　　Though the advantages (that owning a business enjoys/leads to/results in) are considerable/wonderful/numerous， they cannot compete with the benefits (that working for others brings about/causes)， when/if responsibility is taken into consideration/deliberation/account.

　　Though the advantages that living in outside the campus enjoys are considerable， they cannot compete with the benefits that living in inside the campus brings about， when safety is taken into consideration. ---- considerable though the advantages that living in outside the campus enjoys are， they cannot compete with the benefits that living in inside the campus brings about， when safety is taken into consideration.

　　⑥表示否定的副词或短语+助动词+主语+谓语+其他成分

　　No/not/never/Neither/nor/ (全部否定)

　　seldom/rarely/barely/scarcely/hardly(部分否定)

　　Never will I form an idea that bicycles affect human beings’ life style most profoundly among all transportation means.

　　⑦Only+状语置于句首+助动词+主语+谓语+其他成分

　　Only though this crisis do I understand that you love me best in the world.

　　这7个托福写作倒装句的核心技巧几乎可以包括所有的倒装句形式，大家在平时的练习中可以对此加以应用。