All your homework____ in on time every day．

北极熊变瘦了!科学家说，由于污染增多，污染物进入北极熊体内使其体型缩小；全球气候变暖，海洋冰面减少。北极熊要花费更多的能量猎食。这样就限制了它的生长。下列选项中与“北极熊减肥”现象所蕴含哲理相一致的是（　　）

①水集鱼聚。术茂鸟集    ②对症下药，量体裁衣  ③上律天时，下袭水土    ④物我一体，心物一体。

    Hello, everyone! Tomorrow we'll go for a trip in the mountains. Before we start, there are some ____ and suggestions for you. First, everyone should ____ sports shoes. Second, when you walk in the mountains, you mustn't walk too ____ "to the edge of the path. Third, you must keep ____ or you'll get lost. Fourth, bring some water with you, or you'll be ____.

    We need to put up a tent to stay at night in the mountains. Be careful of the ____ when you are in the forest. Although some animals look ____ they are really dangerous. If you meet animals, don't move suddenly. Just keep still until they ____. Remember to hang your food in the tree before you go to sleep Hope everyone can have a good trip.