here comes the bus.
has he gone to school?
1. 在 there be 句型中，be可换成 live , lie, stand 等表示状态的词。
there is a boat in the river.
tthere stands a temple on the top of the hill.
2.用在以here, there, now, then, in， out， down， up, back, over ,away, off等副词开头的句子中，主语是代词时不倒装。
now comes my turn.
here is a letter for you.
then followed three days of heavy rain.
in came the teacher, and the lesson began.
off went the horses.
up went the arrow into the air.
away they went.
in the front of the lecture hall sat the speaker.
on the ground lay an old sick goat, which had gone into the cave to die.
such was the story he told me.
gone are the days when we had nothing to eat.
“you have made great progress this term.” said our teacher.
“mr.crossett,”said my father, "will you permit an old pupil to shake hands with you?”
“why didn’t you join us!” our monitor asked me.
1．由连词as, though, no matter how, however引导的让步状语从句中，通常把n/adj./verb/adv.提前.
child as he is, she knows a great deal.
youngest as he is , he studies best in our class.
however tired he is, he continues to work.
again as he tired, he failed.
hard as he works, he makes little progress.
try as he does, she will never pass it.
search as they would, they could find no sign.
much as he likes the girl, he quarrels with her sometimes.
young though he is, he has won the nobel prize.
2．有were, had, should等虚拟条件句中，常省略if, 句子半倒装。
were you a fish, the cat would eat you.
had your father known this, he would have given you advice.
3．语气，常把某些副词性短语或表语形容词提到句首，如 not, never, hardly, not only…but also, neither…nor, seldom, little, rarely, scarcely, nowhere, by no means，in no time, hardly/ scarcely….when, no sooner…than, not until,
never have i met him.
hardly did i think it possible.
not until midnight, did it stop raining.（主句倒装）
not until she took off the glasses did i recognize her
scarcely had i got home, when it began to rain.（从句倒状）
no sooner had he left home than it began to rain. （从句倒状）
not only does he like, but also he learns it well.（not only 后倒装）
not only i but also she likes english.(连接主语不倒装)
neither has he called on her, nor will he do so.（前后都倒装）
4．频度状语的often, always, once, many a time(多次，常常),now and then, every other day
often do i tell her about my life here.
many a time has he helped me with my experiment.
only in this way, can you learn english well.
only the teachers are allowed to use the room.
only him we could find in the room just now.
what did the two cheats pretend to be doing?
what do you think the two cheats pretended to be doing?(注意)
what makes you so angry? (注意)
在前后两个并列的句子中，后句以so, nor, neither开始重复前句内容时，主语是不同的人或物，译为……也是时，用倒装。
he has finished his work, so have i.
you can’t do it, nor can i.
it is fine today, so it is.
当前面是复杂情况，如，两个不同形式的主语，两个或两个以上的句子，或既有肯定又有否定时，用so it is/was with sb./it is /was the same with sb/the same goes for sb句型。
her mother is a doctor and works in the people’s hospital. so it is with mine.
may you have a good journey!
may you succeed!
so loudly did he speak that all of us could hear him clearly.
so angry was he that he couldn’t speak.
such a noise was there that i couldn’t work.