(1)、疑问词+ever whatever, whoever, whichever, whenever,
wherever, however用来引导让步状语从句，相当于no matter和what, who, which, when, where, how连用。
Whatever (=No matter what) may happen, we shall not lose hope.
Whatever reasons you (may) have, you should carry out a promise.
Whoever (=No matter who) comes, he will be warmly welcome. 无论谁来，都会受到热烈欢迎。
Whenever (=No matter when) it happened, it was certainly not yesterday.
Whenever you (may) call, you will find her sitting by the window.
Wherever (=No matter where) he went, he made friends with people.
Whichever (=No matter which) of them you many choose, the quality will be the same.
However (=No matter how) hard I have tried, I can’t find the answer.
(2)、whatever, whoever, whichever, whomever等引导名词性从句，这时不能用no matter+疑问词替换。
Take whichever you want. 你要哪个就拿哪个。
We will do whatever we can to help him out. 我们要尽力帮助他摆脱困境。
I’ll show you whatever you want to see. 你想看什么我就给你看什么。
Whoever did this job must be rewarded. 无论谁做这件事都要得到报酬。
Whoever walks around in such a heavy rain will catch a cold. 任何人在这种大雨中行走都会患感冒。
You may invite whomever(口语中常用whoever代替)you like to the party. 你可以邀请你喜欢的人来参加晚会。
Take whatever magazines you want to read. 你可以取阅任何你想读的杂志。
here, there, out, in, up, down, now, then, away等副词放在句首，句子需要全部倒装
There goes the bell! = The bell is ringing. 铃响了!
Here comes the bus. =The bus is coming. 汽车来了。
Now comes your turn to make a short speech. 该轮到你发言了。
Away went the thief when he saw the police.
Then came the hour we had been looking forward to. 我们期盼的时候到了。
(1)在这种情况下倒装仅限于不及物动词或be动词，像go, come, rush, live, stand, lie等。
(2)主语是人称代词时不要倒装。如：Away he went. 他走远了。
表示方位的状语放在句首，句子全倒装;谓语动词多为be, lie, stand, sit, come, walk, run, stop etc. 不及物动词。
On a hill in front of them stands a great castle. 在他们面前的山上矗立着一座巨大的城堡。
In front of the house stopped a police car. 房子的全面停着一辆警车。
Around the corner walks a young policeman. 拐角处有个年轻的警察在行走。
Under the tree sat a boy of about ten. 在树下坐着一个大约10岁的男孩。
(表语)adj. / v-ing / v-ed +(地点状语)+ be(或其他动词形式)…
So adj./adv…that…如此……以至于……(so引导的句子倒装，而that引导的句子不倒装!) (这种结构是半倒装句。)
Present at the meeting were the manager, all the designers and the writer.
Fastened to the pole is the National flag.
Hidden behind the door were some naughty children.
Sitting at the back of the classroom were several old teachers, listening attentively to the new teacher.
Gone are the days when farmers lived in the poor houses.
Typical for China is the crosstalk show, where a pair of comedians entertains the audience with word play.
So clearly does he speak English that he can always make himself understood.
So fast does light travel that we can hardly imagine its speed. 光运行非常快，我们几乎无法想象它的速度。