13. The spheres had been magnetized and attracted or repelled each other all the time.
金属球经过磁化,互相之间不停地相互吸引或相互排斥。
语言点:句子结构分析:had been magnetized 是过去完成时的被动语态。all the time强调“一直不停地”。
14. In the centre of the hall, there were a number of tall structures which contained coloured lights.
展厅中央是装有彩色灯泡的许多高高的构件。
语言点:句子结构分析:in the centre of the hall置于句首,作地点状语。Which引导定语从句,修饰structrues。
15. These lights flickered continuously like traffic lights which have gone mad.
灯泡一刻不停地闪烁着,就像失去了控制的红绿灯。
语言点:句子结构分析:which引导定语从句,修饰traffic lights。