phd帮老板review 文章、写proposal，有啥帮助吗

you have to be a reviewer (receive the email from journal editor) to get the credit, not just reviewing papers for your advisor, e.g. you need to have the thank you letter from the editor after reviewing the paper, otherwise, you don't get credit

but of course, this is kind of practice if you like...

天呐......LZ博二就开始审稿写Proposal了……太强了

只有直接邀请你的对eb1才有用，可以让老板推荐转给你，或者老板是editor直接assign给你

申绿卡还是有用的。适当机会跟老板聊一下，也别干太多杂活，毕业重要

This is a quite good academic training. Sooner or later, you need to become a good reviewer to be successful in academia. And it requires practice to learn how to write a good review.

Being able to write a solid and objective review also helps you write a good paper. Just consider this as some practice and a chance to read some most recent papers.
Reviewing papers and drafting proposals are part of life in academia. You will be assigned as the reviewers officially by the PCs once you become senior. Before that, just focusing on how to improve your research taste, how to be a good reviewer, and learn things.

.1point3acresSometimes it doesn't have to be 'useful' before deciding to do something.

老板不厚道 我导师都直接把稿子转给我审 这样都是自己的审稿记录

以后走学术道路的话挺有用的，相当于是积累经验了，以后做教职了，这些都是得会的。就算以后不走搞研究的路，这些其实对你现在的研究也有帮助作用吧，至少是跟研究相关的。我还羡慕你这种杂活，我老板让我干的杂活是给他本科生的课程做PPT（因为他自己不想做）；重复地做比较low的工业界项目（纯粹为了一点小钱），这项目不能写进大论文，也不算毕业要求里面的东西，但能耽误大量的时间；还有就是日常让我教他如果使用苹果手机、解决用win10电脑的时候遇到的各种问题（他是电脑盲）。

个人觉得帮助就是见世面／攒经验（我是楼主所言“温水煮青蛙”的那种…）
确实是像楼上几位所说的，虽然不能直接增加review数，但是这种文字见得多了就更容易耐着性子读完，流程熟悉了之后同样的工作做起来就顺。
至于写proposal的事，除了熟悉写这种文书的格式之外也可以提前体验一下挣钱的不易…