质子条件式怎么书写

质子条件式的书写方式如下:

1. 将句子的主语和谓语提到句首,变为“主语+谓语”的结构。

例如“If I were you, I would study harder.” 变为 "Were I you, I would study harder."

2. 将动词变为“were”的形式,也可以使用“had”。

例如“If she comes, I will be very happy.” 变为 "Were she to come, I would be very happy."

3. 若主语为第三人称单数,则将主语和谓语间加入“should”。

例如“If he tries his best, he will succeed.” 变为 "Should he try his best, he will succeed."

4. 若句子含有情态动词,将情态动词放到谓语前。

例如“If I can come, I will join you.” 变为 "Could I come, I would join you."

5. 若句子中已经含有“were”,则将句首动词变为“be”。

例如“If it were to rain, we would cancel the match.” 变为 "Were it to rain, we would cancel the match."

6. 句子其他部分保持原样即可。

重点注意将句首动词变为“were”形式,第三人称单数谓语前加“should”,保留原句时态和语气。掌握这些规则就可以写出正确的质子条件式句子。