【归纳拓展】
depend on/upon +wh-从句 视….而定,取决于
depend on/ upon+ n 依靠,依赖,相信
depend on/upon+sb.+to do 指望某人做……
depend on/upon +it +that…. 指望…..
That (all) depends. / It all depends. (口语)视情况而定，单独使用或置于句首。
【即学即用】
1) He depends on you ____ _____ _____.他依靠你帮助他。
2) It ______ ______ ______ _______ ______ we can go out for a picnic.我们是否去野餐取决与天气
3) ------Can you finish the work before Sunday?
----- _____________________.这要看情况
（答案.1) to help him 2) depends on the weather whether 3) It\ That all depends.）
