变化系动词用于描述主语的状态或性质的变化。以下是一些常见的例子和造句：

Become

She became a teacher after completing her studies.

It's becoming colder outside.

Get

He got tired after all the hard work.

The milk has gone off.

Go

The leaves have gone yellow in the autumn.

He went mad with joy.

Come

Her wish came true.

The flowers have come into bloom.

Fall

She fell ill last week.

Many leaves have fallen due to the storm.

Run

The river has run dry.

They ran a marathon.

Grow

The tree has grown tall over the years.

She has grown much stronger since she started exercising.

这些变化系动词可以与不同的形容词搭配，形成各种表达主语状态变化的句子。希望这些例子对你有所帮助!