文档介绍：英语从句分类专升本【名词性从句】:.(it作形式主语):.(it作形式宾语)Hewilldowhatevertheteacheraskshimtodo.(名词性关系代词引导)::【状语从句】一、:when,as,while,whenever,before,after,since,till,until,assoonas,hardly…when,bythetime,everytime…(过去时)代替一般将来时(过去将来时)。、条件状语从句常用if;unless(=if…not);once;onconditionthat;so/aslongas等连词来引导。注意:条件状语从句中的谓语动词也同样要用一般现在时(过去时)代替一般将来时(过去将来时)。Wecan’,I’:Idon’、:although;though;asif/though;ifeven/though;whether;nomatterhow/what/who/when/where(however;whoever;whenever;wherever)’,though,as常可互换,可与yet连用,但不可以和but连用。Although不能用倒装语序,though可以用倒装语序,as一定要用倒装语序。Youngasheis/Thoughheisyoung,,butheworkedhard.(错)Though/Althoughhewasold,yetheworkedhard.(对)四、地点状语从句常用where,wherever等词引导,注意不要和where引导的定语从句(where前须有地点的名词作为先行词)想混淆。、原因状语从句常用because,since,as,nowthat等词引导。Because表示未知的原因,其前可带否定词或其他修饰词,可用于强调结构;since和as表示已知的原因,所引导的从句常谓语主句前面,且since和as都不与so连用。,let’、结果状语从句常由sothat,so/such…that引导,位于主句后,具体句型如下:(1)such+a/an+adj.+单数可数名词+that从句=so+adj.+a/an+单数可数名词+.(2)such+adj.+可数名词复数/不可数名词+.(3)so+adj./adv.+that从句Hespokesofastthatwecouldn’tfol