英语经典句型之二 (讲解+练习).ppt

英语经典句型系列之二 1.It is obvious that money doesn’t grow on trees. 此处It 引导名词分句 That money doesn’t grow on trees should be obvious. 名词分句作主语，置于句首 The fact that money doesn’t grow on trees is obvious.名词分句用作同位语从句，与the fact 同位。 Test yourself: 看来谁也不知道那个村子在哪。 2.I had waited three days before he came bake. I had not waited long before he came back. 解释：before 不翻译为“在…以前”而解释为“才”或“就”。 Test yourself: 也许要过好多年我们才能相见。 3.Only when all attempts at negotiation had failed, did the men decide to go on strike. Not until all attempts at negotiation had failed, did the men decide to go on strike. 解释：“待…之时，才…”句型，均为倒装结构。当only 或not置于分句或短语之前时，主句中结构需要变动，即将助动词放在名词之前，然后再跟动词 (倒装句)。 Test yourself: 狮子只有在饥饿的时候才袭击人。 4.It’s about time (that) he learned to look after himself. It’s (high) time (that) he were (was) taught a lesson. 解释:It’s about time 或It’s (high) time +句子表示“该是…的时候了”，后跟的句子中的动词要用过去式。 Test yourself: 现在是你大显身手的时候了。（be given a chance) 5.The guide-book is not only interesting but also instructive. He not only watched the car ,but also polished it. Not only did he hear it ,but he saw it as well. He not only writes his own plays, but also act in them. 解释：“不仅…而且…”句型，有时只用but 不用also，有时只用also 不用but，有时两个都不用。 注意not only 与动词连用置于句首时，结构需要倒装。 Test yourself: 她不光会说西班牙语，还会打字。 黑猩猩不仅自己使用工具而且也会自己制作。 6.I finally found my watch ,only to discover that it had stopped. only to 表示结果而不是目的，作“不料；反而；结果却”解。 Test yourself : 我到了店里结果却发现我把钱留在了家里。 7.There is no alternative but to fire him. no alternative (choice) but to do sth. “除了做某事之外别无其他选择”，but后一般跟带to 的不定词；此处but作“除…之外”解。 We can do nothing but fire him. 此处do nothing but 作“只好；只是；只会”解，but之后接不带to的不定词。 Test yourself: 你只好问她，别无其他办法。 我只好在这等。 8. I wonder whether she can come. 此处whether作“是否”讲，相当于if;但后接不定词短语时，只能用Whether。 Whether you like it or not, you are going to face him one day. Whether or not“不管是否”，用于让步分句，也用于名词分句。 I’m sure we will see each other soon again whether here or in the New York. Whether与or连用作“是…(还是)”“不管…还是…” Test yourself: 问题是去还是留下。 9.虚拟语气 If Henry we