题目内容
20．It's very important for us to learn science and technology．分析 学习科学和技术对我们很重要．
解答 答案：technology．考查名词．句意"学习科学和技术对我们很重要．"．and连接两个并列成分．根据science科学，可知应该用名词形式．根据所给字母提示，及learn学习，可知应该是technology技术．答案是technology．
点评 首字母填空类型题要充分理解句意，再根据首字母提示完成试题，注意时态，单复数，词性等变化．
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