120. On the face of it, that doesn’t seem especially surprising: we feel strong emotion at important events, which are obviously more memorable than ordinary moments.

【结构分析】

1、这是典型的冒号前为主句，冒号后作解释说明的实例。

2、句首部分On the face of it为全句的状语，主句部分为that doesn’t seem especially surprising，这里seem采用了系动词的用法。注意形容词surprising指物的-ing使用。

3、冒号后we feel strong emotion at important events是对主句的解释说明，非限制性定语从句which are obviously more memorable than ordinary moments使用了比较结构，关系代词which在从句中作主语。

4、注意which后的be动词使用了复数形式are，联系上文，我们不难判断出它指代 important events。

【参考译文】

乍看起来，那似乎不会使我们特别吃惊：在重大事件上我们会感到强烈的感情冲击——重大事件显然比平常日子让人记忆深刻。