方法一：當(dāng)主句謂語(yǔ)動(dòng)詞是hope， decide， wish， choose， agree， promise等，且賓語(yǔ)從句的主語(yǔ)與主句主語(yǔ)一致時(shí)，賓語(yǔ)從句可簡(jiǎn)化為不定式結(jié)構(gòu)。例如：
Li Ming hopes he will be back very soon. →Li Ming hopes to be back very soon.
We decided that we would help him. →We decided to help him.
方法二：當(dāng)主句謂語(yǔ)動(dòng)詞是know， learn， remember， forget， tell等動(dòng)詞，且主句主語(yǔ)與從句主語(yǔ)一致時(shí)，賓語(yǔ)從句可簡(jiǎn)化為“疑問詞+不定式”結(jié)構(gòu)。例如：
She has forgotten how she can open the window. →She has forgotten how to open the window.
注：當(dāng)主句謂語(yǔ)動(dòng)詞是tell， ask， show， teach等動(dòng)詞，且后帶雙賓語(yǔ)，從句主語(yǔ)和間接賓語(yǔ)一致時(shí)，賓語(yǔ)從句可簡(jiǎn)化為“疑問詞+不定式”結(jié)構(gòu)。例如：
Could you tell me how I can get to the station？ →Could you tell me how to get to the station？
方法三：當(dāng)主句的謂語(yǔ)動(dòng)詞是order（命令），require（需要）等時(shí)，如果主句和從句的主語(yǔ)不一致，賓語(yǔ)從句可簡(jiǎn)化為“名詞（代詞）+不定式”結(jié)構(gòu)。例如：
The headmaster ordered that we should start at once. → The headmaster ordered us to start at once.
方法四：某些動(dòng)詞后的賓語(yǔ)從句，可以用介詞加動(dòng)名詞（短語(yǔ)）等其他形式簡(jiǎn)化。例如：
He insisted that he should go with us. →He insisted on going with us.
The poor boy doesn’t know when and where he was born. →The poor boy doesn’t know the time and the place of his birth.
方法五：某些動(dòng)詞后面的賓語(yǔ)從句可轉(zhuǎn)化為“賓語(yǔ)+V-ing形式（作賓語(yǔ)補(bǔ)足語(yǔ)）”結(jié)構(gòu)。例如：
Liu Ping found that there was a wallet lying on the ground. → Liu Ping found a wallet lying on the ground.
方法六：動(dòng)詞seem后的賓語(yǔ)從句，也可以用不定式（短語(yǔ)）來(lái)簡(jiǎn)化，但句型需要進(jìn)行適當(dāng)?shù)淖兓�。例如�?br> It seemed that the boys were going to win. →The boys seemed to win.
除上述方法外，還有一些特殊句式的轉(zhuǎn)化。例如：
I found that it was difficult to learn English well. →I found it difficult to learn English well.
Soon we found that the ground was covered with thick snow. →Soon we found the ground covered with thick snow.
They found that the box was very heavy. →They found the box very heavy.
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