求分析这句中的那几个it是表示什么
求分析这句中的那几个it是表示什么
In scientific research it is often
advantageous,if the solution of one problem presents difficulties,to add to
it a second problem; just as it is easier to crack two nuts together instead of
separately.
In scientific research it is often advantageous,if the solution of one problem presents difficulties,to add to it a second problem; just as it is easier to crack two nuts together instead of separately.
=In scientific research it is often advantageous to add to it a second problem,if the solution of one problem presents difficulties; just as it is easier to crack two nuts together instead of separately.
通过这个句子结构调整,原来所用的主体句子结构很清晰：
①【It +be+形容词+ to do sth】.
因此,几个it的用法就比较清晰：
②【it 形式主语,代替后面的真主语不定式短语 to add to...】is often advantageous
to add to 【it= the solution of one problem 】 a second problem;
③【 it 同①】 is easier to crack two nuts together instead of祝你开心如意!谢谢 太精妙了能否帮我翻译一下谢谢啦在科学研究中，如果一个问题的解决途径显得困难重重时，把它融进另一个问题常常是很有利的，这正如将两个坚果放在一起比将它们各自分置更容易使其破裂一样。 祝你开心如意！