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?

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? 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? 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~ it is...for sb.to do...和it is...of sb.to do...的用法 It is really nice (of) you,it is important (for) you to do that.请接合这句话,讲解一下(of)和(for)的用法 麻烦帮忙分析下语法 It is being repaired by a friend of my麻烦帮忙分析下语法It is being repaired by a friend of my father's 前面的being 英语it is in the interest of business to universalize access翻译考研阅读中的一句话,请帮忙分析下in the interest of business何意? Who do you think of is the best basketball player in China.这句话有错误吗有错请帮忙改正，并请分析下句子结构成分。这个句子是不是对宾语从句的主语进行提问？ 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? 请帮忙给翻译下It is crammed full of a lifetime of learning. it is considered not characteristic of men to do so.请分析句子结构,另外,to do so是修饰谁的呢?American men don't cry because it is considered not characteristic of men to do so. 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 ()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 请帮忙分析一下这个句子的语法结构 It is in the place that tales occupied in the lives of the slaves it is of importance for sb to do像这种it is of +n +for sb to do的用法有吗? 关于as的用法,大家帮忙分析下这句话~谢谢~Television is one of the means by which these feelings are created and conveyed -- and perhaps never before has it served so much to connect different peoples and nations as in the recent events