=not only know William,but am his best friend.
*to such lengths ,to such a degree,to such an extent
eg. To such lengths did he go on with his windy speech that some of us began to doze. As
eg. Tired as he was ,he continued his work.
Try as he might ,he could not fulfill the task alone.
eg. She traveled a great deal, as did most of her friends.=
she travelled a great deal ,as most of her friends did .
than=as(conj)
eg. Flying demands a much greater supply of energy than do most other forms of transportation.
Not until …until
Not until the child fell asleep did the mother leave the room.
Subjunctive mood(if)
eg. Had they been given more help ,they would have succeeded.
Were it fine tomorrow,please let him know about it.
Should we come again,we would make better use of the chance to learn more.
So(such)..that , so /such
eg. Such was his anger that he couldn t speak.=he was so angry that he couldn t speak. 完全倒装
in ,out, away, up ,down, off
eg. Following the roar, out rushed a tiger from among the bushes.
In she came./Away they went.
Click-click went the weaving loom.
Here ,there ,now,then
eg. There goes the bell. Here we are. Here it is.
Under a tree, on the bed
eg. At the top of the hill stands a weather station .
当作表语的形容词或分词置于句首
eg. Great and spacious and beautiful is our beloved motherland.
Higher up were forests of maple trees.
Subjunctive mood
Now would/should/could /might+v be/were
Used would/should /could/might have done had done
Will would/should/could/might+v did/were to do/should do
*should虚拟语气中的主句中仅用于第一人称
eg. If I were you, I would go with him.
If he were to go tomorrow ,he might tell you.
*混合虚拟条件句
if I were not to make a preparation for my experiment this afternoon,I would have gone to see the film with you last night.
*were had should not if