请帮忙分析下此处do的用法It is often claimed that nuclear energy is something we cannot do without.（97年1月六级阅读真题）请问此处do充当什么成分,怎么从语法上解释呢.还是句子本身有错误啊?

请帮忙分析下此处do的用法It is often claimed that nuclear energy is something we cannot do without.（97年1月六级阅读真题）请问此处do充当什么成分,怎么从语法上解释呢.还是句子本身有错误啊? 请帮忙分析下do的用法,It is often claimed that nuclear energy is something we cannot do without.(97年1月六级阅读真题)请问do在句中是什么用法,充当什么成分? 求大师帮忙分析下do的用法It is often claimed that nuclear energy is something we cannot do without.（97年1月六级阅读真题）请问此处do充当什么成分,怎么从语法上解释呢.还是句子本身有错误啊? 请帮忙分析下此题 请帮忙分析此句结构 ：It is honesty that makes her different from the other students?请问that 在此句中所引导的是什么从句 请帮忙鉴定此古文,分析下年代 It is honesty that makes her different from the other students?请帮忙分析此句结构 It take sb some time to do sth 这句的主谓宾帮忙分析下 it'been worth it中been的是什么用法?请帮忙分析一下这句话的语法 It is very interesting to speculate what one could do after leaving the school 请帮忙分析这句话的语 It wasn’t always like this though.1.请解释下此处though的用法以及它的一般性,常用的用法? reverse 的用法句子 This is necessary to reverse the economic slide into unemployment.请解释下此处的slide into 为什么是动词原形,是什么用法? ()is thought to be good for people and society is necessary()A.What;to do B.It;to be done C.Whatever;to do D.Whichever;to be done请帮忙分析下句子成分,还有所填的词语在句子中做什么成分,最好也可以翻译这句话..在这里 英语翻译帮忙分析一下这句话的句型,尤其是后一句,it is ,full,also,两个of 的用法什么的~ 英语th,rd的用法是什么样的?请各位帮忙解释下,偶在此谢过啦! 谁能帮忙分析下why would you do that?这句话.would 怎么用法? it 的用法It isn't easy being the new kid at school.it此处是什么用法?结构不是It + be + adj.for (of) sb to do Write a T if the sentence is true.请帮忙分析下这个句子的语法