linda is asking his uncle ,an english teacher ,____(help)him think of a foreign name

不可以
这个help 是和上句的ask搭配的·，ask sb. to do sth。

这么理解就好了：
Linda is asking his uncle to help him think of a foreign name, and his uncle is an English teacher.

林达叫她叔叔给他取个外国名字，他叔叔是个英语老师。

ask his uncle to help him 句型ask sb to do sth

ask sb. to do sth..
让某人做某事