完全倒装：
1. 当句首状语是here /there/now /on the hill/.round the corner/from the valley 等方位词或表示地点的介词词组，且谓语动词是come/go / lie/stand /walk等表示位置移动的动词。 Eg : Here comes the bus. Now comes your turn.。
On the bed lay the patient. 2. 表语置于句首时。
Eg : Gone are the happy days.
3. 以so/neither/开头的句子，表示重复前半部分的内容。
Eg: He has been to Beijing, so have I.
部分倒装：
1． 当句首状语是at no time, by no means , few, hardly, hardly„when ,under no circumstances , in no way , little, never, no longer, no sooner „than, not only„but also, on no account, rarely , scarcely, scarcely„when,
seldom等否定副词或含有否定意义的结构时：
eg: No sooner had she gone than the phone rang.
2． 省略if的虚拟条件句：
eg: Had you reviewed your lessons, you might have passed the exam.
3． Adj (n/v)+as 引导的让步状语从句： Eg: Try as he would , he might fail again.
Child as he is, he can speak good English.
Pretty as she is, she
4． 当句首状语由“Only+另一状语”构成时，
eg: Only when he told me did I realize the problem.
Only at that time did he know that his wife had been wronged.
5. so„that结构中的so位于句首时，（但动词是BE时要全部倒装） Exercise:
1.___us everything, we could try to solve this problem.
A Were he to tell B He was to tell C Was he to tell D Tell
2. So much ___his financial position that he can’t sleep at night.
A he worries about B does he worry about
C worries about he D worries he about
3.In the Age of Gold, truth and right prevailed, though not enforced by law,___ any in authority to threaten or to punish .
A nor there was B nor was there C there was nor D there was no 4. On no account _____ to feed the animals.
A visitors are allowed B are allowed visitors
C visitors allowed are D are visitors allowed
5. Under the table _______.
A was a half-conscious young soldier lying
B a half-conscious young soldier was lying
C lying was a half-conscious young soldier
D was lying a half-conscious young soldier
虚拟语气
1． IF虚拟语气： 状态 从句 主句 与过去事主语主语实相反 +had +would/should/might/ done could +have done 与现在事主语主语实相反 +did +would/should/might/ could +do 与将来事实主+were to 主语+would/should/might/ 相反
(should could
do+do ) 1）***IF 被but for/without等介词结构代替：
eg:Without your help, we would meet a lot of difficulties. 2)主句和从句时间不一致
eg:If he had studied hard in college, he wouldn’t find a job now. 2．WISH的虚拟语气：（形式和IF虚拟从句相同）
过去不能实现的愿望 主语+wish +had done 现在不能实现的愿望 主语+wish +did 将来不能实现的愿望 主语+wish +would/could+do 3．Would rather +从句可表示虚拟： 4．在damand.propose,,suggest,order,request等表示建议，命令的动词后及相应的
名词或形容词（natural,necessary,essential,vital,important,proper,strange,impossible）之后的从句中：
eg: He suggested we (should)leave tomorrow.
His suggestion is that we (should) leave tomorrow.
It is advisable that we (should) leave tomorrow.
5.It is (high) time +that 从句：
It is(high) time (that) we left. or
It is(high) time (that) we should leave.
6.as if 后有时也可虚拟： Exercise:
1.I would rather you ___to school now. A went B go C will go D to go 2.It’t high time the family ___a real effort to settle down.
A makes B will make Cmaking D
made
3.The instrument was bought ten years ago, but it operates as if it___ new. A were B is C has been D had been 4.If things ___ different, I could have done it.
A were B are C have been D had been
5.If he ____his father’ advice , he would be a general now.
A has taken B had taken C were to take D took
6 “I wish you ____ longer holidays ,” Julie said, embracing her husband, ark, in the doorway of their home. A have B had C will have D had had
