结构︰What if+主词+动词
说明︰此句型意为如果的话怎么办呢?。但经常用于反语,有时也变成即使也没关系之意。
What if it is true? 如果这是真的又该如何呢?
What if he doesnt agree? 如果他不同意该怎么办呢?
What if he comes back now? 如果他现在回来怎么办?
What if the boys parents should die? 如果那男孩的父母死了该怎么办呢?
What if I fail! 即使我失败了又怎样!
What ... for?
结构︰What+助动词+主词+动词+for?
说明︰此句型意为为什么?。相当于For what?
What are you running for? 你为什么在跑步?
What do you want it for? 你为什么要那个?
What did they go there for? 他们为什么去那里?
How else ...?
结构︰How else+助动词+主词+助动词?
说明︰此句型意为还有别的方法吗?。
How else should a father in this modern world express his affection and concern for his own son? 现代这个世界上,父亲还应该有别的方法来对自己的儿子表示爱护和关心吗?
How else can the doctor save him? 医院还有别的方法可以救他吗?
How else can I apologize for her? 我还能有别的方法可以向她道歉吗?
假设法句型
If + Present Tense ..., S + will/shall + V ...
结构︰If+现在式,S+未来式
说明︰if 子句用现在式,表示须具备的条件,主句用未来式表示可能的结果,整句含意为如果,那么。will 用于所有的人称,在 I 和 we 之后可用 shall 代替 will。若主句的主词为 I 或 we 时,可以用 shall 代替 will。像 if necessary,if possible,if so等固定词组实际上是省略了的 if 子句。
If I lose my job, I will/shall go abroad. 如果我失业了,我就出国。
If I have a headache, I will take an aspirin. 如果我头痛,我就服一片阿斯匹林。
If it rains, we will stay at home. 如果下雨,我们将待在家里。
If the weather clears, well go for a walk. 如果天晴,我们就去散步。
If the weather doesnt clear, we wont go for a walk. 如果天不晴,我们就不去散步。
Inflation may be rising, if so, prices will go up.
通货膨胀率可能上升。如果是这样,物价就会上涨。
If possible, She wants to go with us. 可能的话,她想跟我们一起去。
Sterling may fall, if so, interest rates will rise.
英国货币可能贬值,如果果真如此,利率就会上升。
If + Present Tense ..., S + Modal Verb ...
结构︰If + 现在式,主词+情态助动词
说明︰本句型实为句型之变体。之所以用情态助动词,主要是因为说话者对可能的结果不是太肯定或者是想表达例如必要的意思。
If it is fine tomorrow, we can go out. 如果明天天气好,我门可以出门。
If it is fine tomorrow, we could go out. 如果明天天气好,我门能够出门。
If it is fine tomorrow, we may go out. 如果明天天气好,我门可能出门。
If it is fine tomorrow, we might go out. 如果明天天气好,我门可能出门。
If it is fine tomorrow, we should go out. 如果明天天气好,我门宜于出门。
If it is fine tomorrow, we ought to go out. 如果明天天气好,我门宜于出门。
If it is fine tomorrow, we must go out. 如果明天天气好,我门必须出门。
If I should ..., Imperative Sentence.
结构︰If I+should ...+祈使语气
说明︰代替,增加了条件的不确定性。本句型常用在想礼貌地提出要求或建议,或者想圆通地告诉他人该做什么事的场合。用 should 起始句子即可不用 if 而表示条件。这种用法比较正式,常用于诸如公函之中,而不用于日常会话。
If you should see him, please give him my regards. 如果你见到他,请代我向他致意。
Should you see him, please give him my regards. 如果你见到他,请代我向他致意。
If you should happen to see him, please give him my regards.
如果你万一见到他,请代我向他致意。
Should you happen to see him, please give him my regards.
如果你万一见到他,请代我向他致意。
If you should write to her, send her my love. 如果你给她写信,请代我向她问候。
Should you not wish our agent to call, please let us know.
你若不希望我们的代理人去造访,请告之。
Should you be interested in our offer, please contact us.
你若对我们的报价感兴趣,请与我们联系。
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