同位语从句例句：
1. Mr. Smith, our new teacher, is very kind to us.
这里，“our new teacher”是主词“Mr. Smith”的同位语，说明是同一个人。
2. Yesterday I met Tom, a friend of my brother's.
“a friend of my brother's”是受词“Tom”的同位语，说明是同一个人。
3. My brother, who is a doctor, just returned from Africa.
“who is a doctor”是名词“my brother”的同位语，说明了他的职业。
4. The conference, which was held in Paris, attracted scholars from around the world.
“which was held in Paris”是名词“the conference”的同位语，说明了会议的地点。
定语从句例句：
1. I went to visit the American author who wrote a number of books about China.
“who wrote a number of books about China”是定语从句，修饰“the American author”，说明了这个作者的特征。
2. I ate the soup my aunt prepared.
“prepared”是定语从句，修饰“the soup”，说明了汤是谁准备的。
3. The book that I borrowed from the library is very interesting.
“that I borrowed from the library”是定语从句，修饰“the book”，说明了书是从哪里借来的。
4. You gave me the suggestion that I should stop complaining.
“that I should stop complaining”是同位语从句，说明了“suggestion”的具体内容。
5. The news that our team won the game was true.
“that our team won the game”是定语从句，修饰“the news”，说明了新闻的内容。
区别总结：
同位语从句：用于解释或补充名词或代词，通常放在被解释或补充的名词或代词后面，用逗号隔开，且从句中不包含关系词。
定语从句：用于修饰名词或代词，通常放在被修饰的名词或代词后面，包含关系词（如who, which, that等），关系词在从句中充当成分。
希望这些例句和解释能帮助你更好地理解同位语和定语从句的区别和用法。