improvement是动词吗

improvement是动词吗 self-improvement是词组吗? improvement是可数名词吗 单词improvement是可数名词吗? Self-improvement是可数名词吗 improvement可数吗 为什么句子这里需要使用being句子是：The improvement in his health is being maintained.不是已经有系动词了么,直接用被动语态不就好了吗?The improvement in his health整个做主语.为什么要在这里使用being. 英语比较牛角尖的.请英语达人通俗的解释.1 But i don't think the figures show any real improvement yet.yet怎么翻译.show是做动词解释吗?2 Let's hope the scientists can develop new sources of energy.这句话有3个动词,let,h improvement(动词),injure（形容词）,link（动词）,imagine(名词),probably(近义词) Self-improvement是可数名词还是不可数名词? 是有关土地方面的一些英语,position plan or site plan,development、improvement,land improvement contract的意思 improvement是什么意思 home improvement with the improvement of people's living standards,我问一下improvement前面的the可以去掉吗? 情态动词是系动词吗?为什么? like是动词吗?是什么动词? ill是动词吗? study是动词吗