It is...that…句式英语语法强调句知识点
上学的时候，不管我们学什么，都需要掌握一些知识点，知识点就是学习的重点。哪些知识点能够真正帮助到我们呢？下面是小编整理的It is...that…句式英语语法强调句知识点，仅供参考，大家一起来看看吧。
It is...that…句式英语语法强调句知识点 1
有这样一道考题：
It was a teacher that she __________.
A. was B. seemed C. looked D. married
此题应选D。从句意上看似乎4个选项都行，其实这里只能填D。因为填A，B，C 中的任意一个选项，都会导致句中的 a teacher成为表语，然而按照强调句句法规则，It is...that这一强调句型是不能强调表语的。一般说来，以下成分不能用于强调句中的被强调部分：
1. 表语：
她很美。
正：She is beautiful.
误：It is beautiful she is.
他是医生。
正：He is a doctor.
误：It is a doctor that he is.
但是宾语补足语却可以用作被强调部分：
他们选他担任主席。
正：They elected him chairman.
正：It was chairman that they elected him.
2. since 和 as 引导的.原因状语从句(但 because 从句却可以)：
他不能来是因为他病了。
It is...that…句式英语语法强调句知识点 2
注意1：该结构可以对所有成分（谓语除外）进行强调.
I saw him yesterday.
对主语进行强调：It wasIwho/thatsaw him yesterday.
对宾语进行强调：It washimwho/thatI saw yesterday.
对状语进行强调：It wasyesterdaythatI saw him.
对谓语部分强调:Ididsee him yesterday..
注意2：is/was只能是单数，不能写成are
Itwasthe beautiful birds that stunned me.
注意3：当所强调的是人时，that可以替换为who
It is my sisterwhoalways helps me out.
注意4：在informal场合，that/who可以省略
A: You've met my mother, haven't you?
B: No, it was your sister(that)I met!
注意5：强调句去掉it is…that/who…之后剩下的是一个完整的句子
It wasthe governmentthatguarantee the running of the country.
注意6：Not until句型的强调
It wasnot until his wife leftthathe came back.
注意7：it is可以加上情态动词
It might bein this roomthathe met her.
It might have beenJohnthatbought a present for Mary yesterday.
It must have beenBillwhophoned yesterday.