快乐糖糖K
这道题fall from和fall off其实都有跌落的意思，但是我所理解的from讲的是有一定的高度的下落，因此，我认为1和4是正确的fall from由…落下，(由…口里)说出She was badly hurt when she fell from the ladder. 她从梯子上跌下来，伤得很厉害。 The climber fell from a great height. 攀登者从极高的地方坠落下来. The news fell from his lips. 这则消息由他嘴透露出来。 fall off 跌落，掉下，脱落；下降，减少Be careful not to fall off the ladder. 当心别从梯子上掉下来。 One slip and you could fall off the cliff. 脚下一滑就可能从悬崖上跌下去. It used to be my favourite restaurant but the standard of cooking has fallen off recently. 那是我以前最喜欢的饭馆，但近来烹饪水平已大不如前了。
蒋馨瑗SHELLEY
How was it possible to fall down from the third floor without being hurt?从三楼掉下而没有受伤，这怎么可能呢？ 为从……落下的意思时，而且要表明从哪落下时，要加fromThe two teams were all square at the end.最后两队以积分相同而结束。这句也是只有at the end。个人认为， 那句话只是强调sad，至于是在什么结尾处，到不突出讲了。参考下吧，有时英语也是语感吧
