become : 最普通用词，作为连系动词，指从一个状态向另一个状态的变化。
- I was becoming increasingly suspicious of his motives.
- It was becoming cold, so we lit the fire.
- After giving up smoking, he became fat and irritable.
- Margaret Thatcher became the UK's first woman prime minister in 1979.
- He has just become a father.
get : 常指某人或某物有意无意地获得引起变化的因素，结果使变成另一状态。
- He gets really upset if you mention his baldness.
- Is your cold getting any better?
- Your coffee's getting cold.
- After a while you get used to all the noise.
- You're getting to be such a big boy, aren't you!
- How did you get to be a belly dancer?
grow : 常指逐渐地变成新状态，强调渐变的过程。
- He grew bored of the countryside.
- Growing old is so awful.
- I've grown to like her over the months.
turn : 侧重指变得与原来截然不同，有时含贬义。
- The weather has suddenly turned cold.
- When I refused to pay, he turned nasty.
- She turned pale and started to shiver.
- The mood of the meeting turned solemn when the extent of the problem became known.
- The companies worked well together for a while, but eventually the relationship turned sour (= became bad).
- Keele, pop star turned business tycoon, has launched a new range of cosmetics.
- The dry weather turned the soil into/to concrete.
- By the end of September, the leaves have started to turn (= become brown).
- Her attitude turned from politely interested to enthusiastic during the course of our conversation.
go : 作为连系动词，通常与形容词连用，指进入某种状态，从而发生变化，多指不好的状态。
- The idea of going grey doesn't bother me, but I'd hate to go bald.
- Her father's going senile/blind/deaf.
- If anything goes wrong, you can call our emergency hotline free of charge.
- After twelve years of Republican presidents, the US went Democratic in 1992.
come : 侧重变化的经过或过程，多用于不良情况。
- The buttons had come undone.
- The handle came loose.
- Everything will come right in the end.
- This design came to be known as the Oriental style.