4、gsth.1)stopdoingsth.“停止做某事”,指停止正在做的事情。Thestudentsstoppedtalking.学生们停止谈话。2)stoptodosth.“停下来做某事”,指停止原来的事去做另一件事。Theystoppedto smokea cigarette.他们停下来,抽了根烟。She reached the top of the hill and stopped____on a big rock by the side of the path. A. to have rested B. restingC. to rest D. rest2.An