一、强调句型 1.强调句的基本形式为:It is/was+被强调部分+
that/who+其他部分。被强调成分为主语、宾语或状
语。当被强调部分指人时,用that,who均可,指事
物或情况时用that(被强调的是时间或地点状语时,不
用when,where)。
It was in the shop that I met her.
我是在商店遇到了她。 2.强调句的句式变化
一般疑问句:Is/Was it+被强调部分+that/who...
特殊疑问句:What/Who/When/Where/How/Why+
is/was+it+that...
What was it that made him change his mind?
是什么使他改变了主意。 二、强调谓语动词
强调句型不能强调谓语动词,如果需要强调,用助
动词do,does或did。
Do come this evening!今晚一定要来啊!
He did be late for the meeting yesterday.
他昨天确实开会迟到了。
Tom does study hard now.汤姆现在学习的确很努力。 [注意] 不能被强调句型强调的还有让步状语、比较状语、表语、since或as引导的状语从句。 三、几组易混句型比较 1.强调句与“It is/was+时间+when从句”。
在这种句型中it指时间,when引导的是时间状语从句。
注意以下两种句型“时间”表达方式的不同。
It was at midnight that I got back home yesterday.
我昨天是半夜到家的。
It was midnight when I got back home yesterday.
我昨天到家时是半夜了。 2.强调句型与“It is/has been+时间+since从句”。
It is/has been ...since...表示“自从……以来已有……(
时间)”。注意以下两种句型的时态一般不同,句意也
不同。
It was two years ago that I began to learn English.
我是两年前开始学英语的。
It is two years since I began to learn English.
自从我开始学英语以来已有两年时间了。 第一个句子为强调句型,强调的是过去的时间,用一般过去时;而第二个句子表示“从过去到现在已经有多长时间”,用一般现在时或现在完成时。但要注意强调句同样也可以用一般现在时。 It is two hours that he spends on English every day. 他每天花两个小时学英语。 3.It+be+long+before从句。这种句型有以下几种句式:
It wasn't long before...不久以后就……
It won't be long before...不久就会……
It was (not) two years/days before...两年/两天后才
会……(用不了两年/两天就会……)
试比较:
It was two years before he came back from abroad.(时间
状语从句)
It was two years later that he came back from abroad.
(强调句型)
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