1. Helping forests flourish as valuable "carbon sinks " long into the future may require reducing their capacity to absorb carbon now.
问题1: 请教老师,这个long和 into介词短语怎么分析呢?是作flourish的时间状语吗?
2. The country produces only about 60 per cent of the food it eats , down from almost three-quarters in the late 1980s.
问题2: 老师,这个介词from是补足副词down的吗?另外,这种副词加介词的组合整体应该看成是副词短语还是介词短语呢?书上一会儿说副词短语,一会儿说介词短语的。针对这个句子而言,down from是作什么状语呢?
3.A move back to self-sufficiency would boost the farming industry , political sovereignity and even the national's health.
问题3: 同样的问题,介词短语to是补充副词back的吗?然后back to到底该称为副词短语还是介词短语呢?
1 long在此是副词,long into the future为flourish的时间状语。
2 down from是一个副词性短语,from介词短语修饰down,表示从什么基础下降。down from这个副词短语是对 60 per cent of the food it eats的补充说明。表示方位的副词可以作表语或后置修饰名词。
3 move back to 中,back表示方向,to表示目的地,二者从不同角度修饰move。
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