depend on 后面可以直接加that从句吗

是的，"depend on" 后面可以直接加一个由 "that" 引导的从句。这种从句通常用来表示依赖或取决于的条件或因素。例如：

I depend on that report to make a decision.

The success of the project depends on that contract being signed.

这里的 "that" 引导的从句 "that report to make a decision" 和 "that contract being signed" 分别说明了依赖的具体条件和因素。