如图，英语中的状语到底是什么意思、作什么用啊？求结合下面几个句子，通俗易懂地解释下

状语说明地点、时间、原因、目的、结果、条件、方向、程度、方式和伴随状况等。
状语一般由副词、介词短语、分词和分词短语、名词、不定式或相当于副词的词或短语来担当。其位置一般放在句末，但也可放在句首或句中。
副词是一种用来修饰动词，形容词，副词或全句的词，说明时间，地点，程度，方式等概念。
1.副词一般在句子中做状语
He speaks English very well. 他英语说得非常好。
其中的“very”是程度副词，用来修饰“well”。“very well”是修饰“speak”的程度状语。
2. 不定式在句子中可以作目的状语
I come specially to see you. 我专门来看你。
3.介词短语
Ten years ago, She began to live in Dalian.
从十年以前开始，她开始住在了大连。
4.从句作状语
When she was 12 years old, she began to live in Dalian.
她12岁的那一年开始居住于大连。
5.动词ing形式作状语
①表示时间
Seeing its mother, the baby smiled. （see和smile同时发生）
看到它的母亲，婴儿笑了。
Having studied English for 3 years, he can communicate with foreigners.（先study 然后才能communicate）
学了3年英语，现在他能与外国人交流了。
②表示原因
Not knowing anything about the accident, he went to work as usual.
(=Because he didn't know anything about the...)
Not having received any news from home for a long time, she is becoming more and more homesick.
(=As she hasn't received any news from home...)