Question

关于强调句的判断

1.It is certain that the building will be built in our school
为什么不是强调句，把it is that去掉又不缺成分
2It was a pity that he failed in the final examination
问题同上

Answer 1

记住一点就能判断：强调句it is XX……中强调的XX，是从句中的一个部分，从句本身不是一句完整句。（与原句相比）而非强调句that引导的从句是完整句，就像你给出的两句，都不是强调句。
还拿你的句子的一部分做例子，如：The building will be built in our school next year.
变为强调句：It is the building that will be built in our school next year.
It is in our school that the building wiil be built next year.
It is next year that the building wiil be built in our school.
另一句：It is he that failed in the final examination.
你注意一下，that 后面的句子与原句比完整吗，显然少了些什么吧。不是主语，就是状语、宾语。
另外还要注意的是，不管强调的是人、时间、地点还是事情，引导词都是that，而不能用who, when, who.

追问

没少啊，the building will be built in our school
主谓宾都不缺？
那certain在句中充当什么成分？

追答

我指的是我修改过的例句The building will be built in our school next year.改为强调句It is next year that the building wiil be built in our school. 从句里时间状语next year 就没了，缺成分是指与原句相比，我的回答中，都强调了这点，你去看第二行和倒数第三行，不是指是否一句句子。
certain 是形容词作表语

追问

the building will be built in our school 与certain怎么连接？

追答

你的问题中“连接”为何意我不是很理解，你的原始问题中这句It is certain that the building will be built in our school. 不是已经连接了吗。这是一句主语从句，从句that the building will be built in our school.指的就是it, 其实也可说：(The fact)that the building will be built in our school is certain. 但这样的话，主语太长了，显得头重脚轻，所以用主语从句，It是先行主语，后面用that 引导的主用从句加以补充说明。
不知这样是否回答了你的问题。

Answer 2

matters不多余
句意是“做比说更有意义”
matters是“有意义”
say与do是相对应的。
如你所说不要matters
那句话变成：what
you
do
rather
than
what
you
say.
“做而非说”怎么样了？句子不全了
：）