2. Sea water mentioned in the passage is mainly used to________.

    A. water the farms                  B. water the gardens    
    C. cool the air                        D. make the earth cool
3. What is the report mainly about?
    A. How to grow vegetables in hot areas.  
    B. How to grow crops in tropical climates.
    C. How to cool the soil.               
    D. How to use sea water.
4. It can be inferred from the passage that ________.
    A. sea water can act as an air-conditioner
    B. asparagus are only grown in hot places
    C. the writer wants to tell us something about scientific advance
    D. sea water has many advantages

 

1. C。利用题目中的关键词雨，在原文中找到对应词语，在对应词语周围找到答案。A、B项均属于表面意思，且捕食原文中的具体事实，D项cool the soil不是最终目的。只有C项是具体事实：cool climate vegetables are now able to be grown．．．符合文中的the new system。