https://www.grammarly.com/blog/adverb/

https://www.englishpage.com/minitutorials/adverb.html

Linking Verbs

LIST

• to appear to be to become to feel to get to go to grow to look

  to prove to remain to seem to smell to sound to stay to taste to turn

副词一般是形容词后加ly ，也有特别的，比如good的副词是well

[adjective + ly]

There are also irregular adverbs such as "well" and "fast."

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如果系动词后面加副词，那么它就不是系动词。有的动词同时是系动词。也是实义动词

Examples:

• Sally grew angry.
  "Angry" describes Sally. In this sentence, "to grow" is being used as a linking verb meaning "to become."
• The plant grew quickly.
  "Quickly" does not describe the plant, it describes the manner in which it grows. In this sentence, "to grow" is not being used as a linking verb.

grow做为系动词。是 become的意思。