英语语法超级纠结中1HewasexcitedTosuchandegreethathecouldn’tsleeplastnight.改成so/such...that是Tosuchandegreewasheexcitedthathecouldn’tsleeplastnight.2Theboyisinterestedinsuchalovelytoythathisparen

　　英语语法超级纠结中

　　1HewasexcitedTosuchandegreethathecouldn’tsleeplastnight.

　　改成so/such...that是

　　Tosuchandegreewasheexcitedthathecouldn’tsleeplastnight.

　　2Theboyisinterestedinsuchalovelytoythathisparentsdecidetobuyitforhim.

　　若这句要改成such...that倒装的话是

　　Suchalovelytoyistheboyinterestedinthathisparentsdecidetobuyitforhim.

　　还是

　　Insuchalovelytoyistheboyinterestedthathisparentsdecidetobuyitforhim.

　　之所以有这样的疑问是因为1中的介短Tosuchandegree是做句子的程度状语的,为一整体,一块移至句首.而2中的beinterestedin是个固定用法,到底in要不要也移到句首呢?beinterestedinsth虽为固定,但就句子成分划分,insth是不是也是做谓语beinterested的状语的呢?到底这种be+adj+perpsth是如何划分的?“be+adj+perp是谓语sth是宾语?”还是“be+adj是谓语perpsth是状语”另外还有,那定语从句中介词怎么能即可放在that/which前面,也可放在定语从句的后面呢?

　　这里一直很晕菜,可能是我太笨,理解能力不够.谁能帮我仔细讲解下.