13) What a + 形容词 + 名词 + 主语 + be!= How +形容词+ a +名词+ be!(多么……!) 例如: What an important thing it is to keep our promise!= How important a thing it is to keep our promise! 遵守诺言是多么重要的事! 14) 主语 + do good/ harm to sth. (对…...