范文：
Title: "However" in English
In the English language, "however" is a versatile conjunction that is used to introduce a contrasting or qualifying statement. It is often placed at the beginning of a sentence or clause to indicate a shift in the direction of the discussion. Here are a few examples to illustrate its use:
1. "I thought the weather would be sunny; however, it turned out to be rainy."
2. "She was eager to join the team; however, she had to decline due to prior commitments."
3. "The recipe calls for three cups of sugar; however, I used two because that's what I had."
"However" can also be used as an adverb to modify a verb, adjective, or another adverb, and it can be used to emphasize a point:
1. "She was extremely tired; however, she managed to finish her work on time."
2. "He is usually very punctual; however, he was late for the meeting."
Remember that "however" should be used to maintain a natural flow of thought and to introduce a contrast that is relevant to the preceding statement.
常见问答知识清单及解答：
1. 问：如何正确使用"however"这个词？
答： "However"可以放在句首或句中，用来引入与前面内容形成对比或修正的信息。例如：“I thought it was going to be sunny, however, it rained.”
2. 问："However"和"but"有什么区别？
答： "However"通常用于更正式的写作和口语中，用来引入一个轻微的对比，而"but"则更直接，用于强调对比。例如：“I like coffee, but I prefer tea.”
3. 问："However"可以放在句尾吗？
答： 不可以。通常"however"应该放在句首或句中，以保持句子的流畅性和逻辑性。
4. 问："However"是形容词还是副词？
答： "However"既可以作为副词使用，修饰动词、形容词或其他副词，也可以作为连词，连接两个独立的子句。
5. 问："However"在句子中的位置有规定吗？
答： 没有严格的规定，但通常建议将"however"放在句首或句中，以保持句子的清晰和逻辑。
6. 问："However"后面应该接什么类型的句子？
答： "However"后面可以接陈述句、疑问句或感叹句，取决于上下文。
7. 问："However"在口语中如何使用？
答： 在口语中，"however"可以像“well”或“you know”一样作为插入语使用，表示对前面话语的修正或补充。
8. 问："However"是否可以用来开始一个问句？
答： 可以。例如：“However, do you think it will rain tomorrow?”
9. 问："However"在正式写作中是否常用？
答： 是的，"however"在正式的学术写作和商务写作中非常常见。
10. 问："However"是否可以与"on the other hand"互换使用？
答： 不可以。"On the other hand"通常用来引入与前面观点相反的信息，而"however"则更通用，可以引入任何形式的对比或修正。
