--------------with his slippers on when he heard the terribl

这是一句完全倒装句
here,there,out,in,up,down,now,then,away等副词放在句首,句子需要完全倒装
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,句子完全倒装；谓语动词多为be,lie,stand,sit,come,walk,run,stop etc.不及物词.
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.)需要完全倒装