强调句,定从与同从 1 It‘s the inner beauty that matters.是强调句吗?还是定从?

强调句,定从与同从 1 It‘s the inner beauty that matters.是强调句吗?还是定从?
2 The day_____（which/when/that）I met the famous pop star was the greatest day of my life.
可否是that 作同从?像reason 后面的that一样
3 讲一讲reason 后加that 和why的例句!
thanks!

1.是强调句,it's ...that 句型,内在美最重要.
2.when：当主句中的先行词(即主句中被后面定语从句修饰的词)是表示时间意义的名词时,它只能作定语从句的时间状语,放在定语从句句首.如果定语从句的引导词是作该定语从句的主语或宾语,则要改用关系代词that或which来引导.例如：
The days when we used foreign oil are gone.我们用洋油的日子一去不复返了.
3.当定语从句中缺少主表宾定语时,用关系代词,缺少状语时用关系副词.
1.This is the reason ___ he gave me for his being late.
2.The reason ___ he was late this morning is still unknwn.
例句1中 ___ he gave me for his being late是定语从句,从句中谓语gave缺少直接宾语,并且此处的直接宾语应该是前面的先行词reason,所以用关系代词.
例句2中 ___ he was late this morning 是定语从句he was late this morning 且主系表完整,缺少状语,所以选用关系副词.
再问： 那同从呢？ the day 后加that 可否构成同从？ reason 与that 有构成同从的用法吗？
再答： 同位语从句属于名词性从句，大多由从属连词that引导，常常跟在fact, idea, opinion, news, hope, belief等名词后面。同位语从句一般用来解释或说明这些名词的具体含义或内容，在逻辑上表现为同位关系。例如： They are familiar with the opinion that all matter consists of atoms.他们很熟悉这一观点，所有的物质都是由原子构成的。 1、从先行词来看 同位语从句与名词之间在逻辑上是"主语＋be＋表语"的关系。该名词是需要做特殊说明的抽象名词。例如： They were delighted at the news that their team had won.当听到他们的球队赢了的消息时，他们欣喜若狂。 2、从引导词来看 引导词that在同位语从句中是连词，只起连接作用，无具体词义，that不可省略；that在定语从句中是关系代词，它在从句中充当一定成分---主语或宾语，有具体词意，作宾语时还可以省略。试比较： The factory(that)we visited yesterday is a chemical one.我们昨天参观的那家工厂是化工厂。(that在从句中作宾语，所以此句是宾语从句) The news that he will leave for Shanghai is true.他将要去上海的消息是真的。(that只起连接从句的作用，所以此句是同谓语从句)
再问： 1、从先行词来看 同位语从句与名词之间在逻辑上是"主语＋be＋表语"的关系。该名词是需要做特殊说明的抽象名词。例如： what's the meaning?
再答： 该名词是抽象名词