请英语高手帮忙分析句子成分1、tropical diseases would almost certainly spre
请英语高手帮忙分析句子成分
1、tropical diseases would almost certainly spread northwards,causing wider-ranging and mostly adverse impacts on human health,with significant loss of life.with是作什么成分,与哪个句子连接的.
2、It may be that we can adapt to it without difficulty.这是什么从句
3、it is difficult to get people to act when predictions may take between 50 and 100 years to materialize.状语从句中的主谓宾是什么,between...and...作什么成分,to materialize 是补语吗
4、if preventive action is going to work "you really do have everyone on board".请分析这个句子,尤其是引号中的句子成分.