How was it that you succeeded? 你是怎么成功的? Why is it that smoking is not allowed here? 这儿为什么不允许吸烟? Where was it that he bought the bike? 他是在什么地方买到这辆自行车的?
4.有时可用It might be...that..../It must have been...that...句型表示强调,如: It might be his father that you're thinking of. 你关心的可能是他父亲。 It must have been his brother that you saw. 你看到的想必是他的兄弟。
5.not...until...句型的强调句 其强调句式为:it is/was not until+被强调的部分+that+其他成分,如: He didn't go to bed until ten o'clock. 他直到十点钟才上床睡觉。 →It was not until ten o'clock that he went to bed.
I didn't realize she was a famous film star until/till she took off her dark glasses. 直到她取下墨镜我才意识到她是一名著名的影星。 →It was not until she took her dark glasses that I realized that she was a famous film star. 6.强调词it与先行词it 可恢复原句来判断,即把it is/was...that...去掉,如果剩下的成分仍然能组成一个完整的句子,这就是强调句型,否则就不是。如: It is there that accidents often happen. 就是在那儿经常发生事故。 Accidents often happen there.
以上就是强调句型,被强调成分是状语,把it is...that...去掉,还原成后来的非强调句。 It is clear that not all boys like football. 去掉it is... that... 句子成了Clear not all boys like football. 很显然这不是一个完整的句子,因此不是强调句型,而是由it作先行词引导的一个主语从句。 7.强调句型It is/was...that... It is/was+时间+when从句;It is+时间+since从句; It was not long...before... ①强调句型与It is/was+时间+when从句 在上述句型中it指时间,when引导的是时间状语从句。注意两种句型“时间”表达方式的不同。如: It was at midnight that I got back home yesterday. It was midnight when I got here yesterday. 第一句是强调句型,被强调的是时间状语,因此用介词短语表达,而第二句是一般句型,时间以名词的方式表达,用来作表语。 ②强调句型与it is+时间+since从句 It is ...since... 表示“自从……以来已有……(时间)” 注意两个句型中的时态一般不同。 试比较: It was two years ago that I began to learn English. 两年前我开始学英语。 It is two years since I began to learn English. 自从我开始学英语到现在已有两年了。 第一句为强调句型,强调的是过去的事情,用一般过去时,而第二句表示“从过去到现在已有多长时间”用一般现在时。但强调句型同样可以用一般现在时。如: It is two hours that he spends on English every day. 他每天花两小时补英语。 ③强调句型与It was not long...before... 从句上述几项可有以下几个句式: It was not 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/天后(不到两年/两天)就…… It will (not) be two years/days before...两年/天后才会……(用不了两年/两天就会……)
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