英语语法问题求解。。。高手进谢谢了？

Question

一个问题请教大家，请大家指点谢谢了。
问题1：请问大家，我注解部分的分析都正确吗？
问题2：请问still和yet. 作为“连词”和“副词”分别都是什么意思（4个词）。
1. Though he has a cold,he still goes to school.
注：still 为副词，加强语气作用
2. He has a cold,but he still goes to work.
注：still 为副词，加强语气作用
3.She was thirsty, still she wouldn't drink.
注：still 为表示转折关系的并列连词，用于并列连接两个句子
3 Though he has a cold, yet he goes to school.
注：yet为副词，加强语气作用
4. He has a cold, but yet he goes to school.
注：but yet看作一个整体，为“表示转折关系的并列连词”用于并列连接两个句子

Answer 1

still不作连词，可以作形容词、副词。所列的例句的still, yet基本都是副词。
第3句建议用but或yet
still: （来自柯林斯词典）
ADV 但是;尽管如此;(虽然…)还是
You use still to emphasize that something remains the case or is true in spite of what you have just said.
I'm average for my height. But I still feel I'm fatter than I should be...
从身高来看，我算是中等身材。但我还是觉得自己胖了点。
ADV (表示不必担心)然而，不过

You use still to indicate that a problem or difficulty is not really worth worrying about.

Their luck had simply run out. Still, never fear...
他们的好运已经到头了。不过，别担心。
yet: （来自柯林斯词典）
CONJ-COORD （用于引出颇令人惊讶的事实）可是却，却又
You can use yet to introduce a fact which is rather surprising after the previous fact you have just mentioned.

I don't eat much, yet I am a size 16. 我吃得并不多，但是却穿16码的衣服。追问

谢谢您

Answer 2

yet就是表示者转折，still在做连接词时，＝yet，表示转折，不是并列。追问

谢谢老师的讲解！！！

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