本句型是：It is + 名词+ to do ,其中it 为形式主语，真正主语是动词不定式短语：to keep our classroom clean and tidy。
to clean and tidy是表语 动词不定时作表语
还原后是：
our duty is to clean our classroom and tidy本回答被提问者采纳
clean and tidy 干净整齐
...keep our classroom clean and tidy.中的It《our duty 》和 clean...
it是形式主语，our duty是表语，clean and tidy是宾语classroom的补语，即宾补。重点词汇解释 duty 英 ['djuːti] 美 ['duːti]n. 义务；职责；责任；税；关税 I feel it my duty to speak frankly to you.我觉得我有义务要坦白地对你说。短语 1、accomplish one's duty 完成...
...duty to keep our classroom clean and tidy.中 our duty 是什么语...
It 是形式主语，our duty 是真正的主语（因为主语太长， 为避免句子头重脚轻用形式主语it）。to keep...是表语。clean and tidy是宾语补足语 如果不用形式主语，正常的句子是Out duty is to keep the classroom clean and tidy.希望我的回答对你有用，满意请采纳~...
...our duty to keep our classroom clean and tidy.句中的 clean and...
翻译是：保持我们教室的干净整洁是我们的责任。It是做主语，是代表不定式：to keep our classroom clean and tidy.起强调作用。clean and tidy是作宾语，our classroom 是定语，希望这个解释能令你满意。
【高一英语】求英语句子+翻译+分析成分
It is our duty to keep our classroom clean and tidy. It做形式主语 to keep之后是真正的主语 is是表语 主+系+表 our duty为表语 He found it hard to solve the problem.主谓就不用说了 it作形式宾语to do不定式是真正宾语 He found it important to master English important是宾补 to...
...our duty to keep our classroom clean and tidy.这句话谁做主语谁...
it是形式主语，真正的主语是后面的不定式短语to keep our classroom clean and tidy
保持我们学校清洁的英语作文
We are studying in this school. It is our duty to keep it clean and tidy. It is not good to spit in public places, such as in the library, in the class. We shouldn’t leave rubbish here and there. Don’t draw pictures on the wall, they influence the look of our ...
It is加名词加不定式和it is 加形容词加不定时有什么区别?
您好，二者结构基本相同，都是it用作形式主语，只是意思上有区别。
使我们的教室干净的英文作文
As a student, I think it is our duty to keep our classroom clean and tidy. We should get into a good habit of keeping ourselves clean. We first wear smart clothes and look smart. Then we should keep our desks and chairs clean. We should clean our classroom and our school...
英语翻译:保持教室清洁是我们的职责
It is our duty to keep the classroom clean and tidy.keeping the classroom clean and tidy is our duty.
请你以让我们的学校更美丽写一篇英语作文
范文：We are studying in this school. It is our duty to keep it clean and tidy. It is not good to spit in public places, such as in the library, in the class.我们在这所学校里学习。保持干净和整洁是我们的责任。We shouldn't leave rubbish here and there. Don't draw ...
