recommend介词问题

Question

阅读有一道题“what was recommended for the researchers？”
这句话的意思是“为了这些研究者，什么被推荐？”还是“什么被这些研究者推荐？”
如果意思是后者的话，为什么不把for换成by呢？

Answer 1

牛津高阶英汉双解 为你提供详细解释！
1
[VN] ~ sb/ sth (to sb) (for/ as
sth) to tell
sb that sth is good or useful, or that sb would be suitable for a particular
job, etc. 推荐；举荐；介绍 ：
Can you recommend a good
hotel? 你能推荐一家好的饭店吗？
I recommend the book to all my
students. 我向我所有的学生都推荐这本书。
She was recommended for the
post by a colleague. 她获得同事推荐到这个岗位。
The hotel's new restaurant
comes highly recommended (= a lot of people have
praised it).
这家酒店的新餐厅得到了人们的普遍赞扬。

2
to advise a
particular course of action; to advise sb to do sth
劝告；建议 ：
The report recommended a 10% pay increase. 报告提议工资增加 10%。
It is dangerous to exceed the recommended dose. 超过建议使用的剂量会有危险。
◊
a recommended price of $50 建议售价
50 元
[V (that)] I recommend (that) he see a lawyer. 我建议他去找个律师。
(BrE
also) I
recommend (that) he should see a lawyer. 我建议他去找个律师。
(that)] It is strongly recommended that
the machines should be checked every year.
建议每年一定把机器检修一次。
We'd recommend you to book your flight early. 我们建议你早点儿预订航班。
He recommended reading the book before seeing the movie.
他建议先看这本书，再去看这部电影。

3
[VN] ~ sb/ sth (to sb) to make sb/ sth
seem attractive or good 使显得吸引人；使受欢迎
This
system has much to recommend it. 这套系统有很多可取之处。