易混淆的It's+time+…句型例析
2010-02-16陈同雪庞利华
陈同雪 庞利华
一、It's+笼统的时间time(about time/high time)+that clause……该做……。
分析:该句型常用来表达“是某人该做某事的时候了。”从句谓语动词用虚拟语气did/should do。且should不省略。例如:It's time that we took/should do some mea-sures to settle the problem,是我们该采取措施解决那个问题的时候了。
二、It's+泛指的时间段+when clause
分析:该句型中的时间通常是不具体的时间,如某一时期、某一时代或时刻等。其中when引导的是一个定语从句。如;It's atime when a large amount of reptilescontrolled the earth,那是一个很多爬行类动物横行地球的时代。
三、It's+具体的时间段+since clause,从句谓语动词通常用一般过去时。例如:
It's two years since he joined the army(=Two years has passed since he joinedthe army)他参军两年了。
分析:在该句型中,如果从句的谓语动词是短暂性动词,该动作从它开始起算起,如上例。若从句的谓语动词是延续性动词,则动作从它结束时算起。
四、It+be+时间段+before clause
1.It will/is going to/would,情态动词(表推测)+be+时间段+before clause
分析:该句型中,主句时态是一般将来时,从句为before从旬,且时态为一般现在时。译为“要不多久就……”或“再过……就……”。例如:It will be two months be-forethe year 2010 arrives,再过两个月。2010年就要到了。
2.hwas+时间段+before clause
分析:该句型中。主句时态是一般过去时,从句为before从句。译为“过了多久才……”例如:It was three days before he telephoned me,三天后他才给我打电话。
3.It would be+时间段+before clause
分析:该句型通常用在间接引语里。译为“过不多久就,在过多久就……”。例如:
She said it would be three months before the new year came,她说再过三个月就是新年了。
五、It's+时间点+clause
1.It's+时间点+定语从句
2.It's+时间点+that clause(强调句型)
分析:在这个句型里,判断方法是:去It's,若剩下部分为完整的句子,则用that引导,是强调句型。如:It's yesterday that he left here for Beijing,反之是定语从句,用关系代词或关系副词引导。如:
It's 6:00 when he left here for Beijing this morning,
It's 6:00 at which be left here for Beijing this morning,
It's 6:00 that/which/不填he left here for Beijing this moming,
六、It's+prep.+时间点+that clause
分析:在这个句型里,由于prep.+时间点能够单独做状语,所以该句型是强调句型。例如:It's at five o'clock this morning that I came to Dalian by train我今天5点乘火车到大连。
七、It's+介词短语+attribute clause+强调句型
分析:该句型属于It's+介词短语+强调句型。常见的选择题的解题规律是“先捂后放”原则。即在确定第一个空白处的答案时,先捂住介词(只看表示时间/地点,原因或方式的名词)再进行判断,就可较准确地确定为定语从旬;在确定第二个空白处的答案时,不要捂住介词再进行判断,很易判断为强调句型。例如:
It's at nine o'clockI arrived at the stationI met him
A.that;whenB.that;that
C.when;whenD.when;that答案:D
八、It+be+tlle+序数词+time+that clause
1.It is the fist/second…time that clause
分析:在这个句型里,由于主句的谓语动词是is,所以从句谓语动词的时态用现在完成时。例如:It's the second time that I've been here,这是我第二次来这里。
2.It will be the first/second…time that clallse
分析:在这个句型里,由于主旬的谓语动词是一般将来时,所以从句谓语动词的时态用现在完成时。例如:It will be the first time that I've spoken French in pub-lic这将是我第一次在公开场合说法语。
3.It was the first/second…time that clause
分析:在这个句型里。由于主句的谓语动词是一般过去时,所以从句谓语动词的时态用过去完成时。例如:It was the third time that I hadn't worked on a Saturday那是我第三次在星期六不工作。
九、It's for the first,second…time that clause,
分析:在这个句型里,由于forthefirst/second…time能够单独做状语,所以该句型是强调句型。例如:It's for the second time that I came to Dalian,这是我第二次来大连。