作业帮1.The worker was tired,so he wants to find a chair _______.A.to sit1.The worker was tired,so he wants to find a chair _______.A.to sit B.to sit on C.to sit on it D.on it to sit A为什么不对 为什么一定是B
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1.The worker was tired,so he wants to find a chair _______.A.to sit1.The worker was tired,so he wants to find a chair _______.A.to sit B.to sit on C.to sit on it D.on it to sit A为什么不对 为什么一定是B
1.The worker was tired,so he wants to find a chair _______.A.to sit
1.The worker was tired,so he wants to find a chair _______.A.to sit B.to sit on C.to sit on it D.on it to sit
A为什么不对 为什么一定是B
1.The worker was tired,so he wants to find a chair _______.A.to sit1.The worker was tired,so he wants to find a chair _______.A.to sit B.to sit on C.to sit on it D.on it to sit A为什么不对 为什么一定是B
B
动词不定式作定语时,可以有介系词,这里的动词一般要支配一定的介系词,动词不定式前的名词是介系词的宾语,所以这里的介系词一般是不能省略的,如：
I have parents to take care of.
I need a knife to cut it with.
特别要注意的是D这一项,D这项,把it改成which就对了.当动词不定式支配介系词作定语时,有时也可以把介系词提前,然后在介系词后面加一个关系代词whom（指人）或which（指物,不能用关系代词that,因为是在介系词的后面）,然后再加动词不定式,也就是on which to sit,我给的上述第二个例句可以改成：
I need a knife with which to cut it.
但是,固定词组（短语动词）中的介系词是不能前置的,所以第一句就不能改成 I have parents of whom to take care的形式,希望我能帮助你解疑释惑.
B 不定式作后置定语。
sit on a chair 坐在椅子上（ 不经把介词去掉哦）
加油！不明白再问！如果帮到你，请采纳，谢谢！
选B，因为sit 是不及物动词，sit on a chair 坐在椅子上 ，要加介词，这里是不定式做后置定语。懂吗？
望采纳，祝开心~！
你好:
选 B sit on a chair sit 在这里是不及物动词, 所以要加介词 on
翻译: 这位工人很累, 因此他想找一张椅子坐下.
希望对您有帮助!~
B正确。
sit on a chair 介词on 不能省。