call on和call at有什么区别

call on和call at有什么区别

Call on和call at的意思一样，都是"拜访2113""访问"，call on=call upon；但call on后接表示人的名词或代词，call at 后接表示地点或场5261所的词语。试比较：
I called on the Smiths yesterday.
我昨天拜访了史密斯一家人。
I called at the Smith's yesterday.
我昨天去4102了史密斯家。
I called on the doctor yesterday.
我昨天去拜访了医1653生。
I called at the doctor's yesterday.
我昨天去了医务室。
另外，call on还可以"号召"，后面往往接动词不定专式作宾语补主属语。如：
The headmaster called on the students to work harder.校长号召学生们更努力地学习。

call on 号召，邀请，访问，指派，要(学生)回答问题 call at 停靠，(短时间)停留，拜访

call at 后接地点，表示到某人的家或其他场所去拜访某人。 　　we called at mr. johnson's house yesterday. 我们昨天到约翰逊家访问。 　　i called at his office as i was passing. 我路过时去访问了他的事务所。 　　call on 比较正式，后接人作宾语，指进行短暂的访问。访问者和受访者一般只有社交或公务关系。如： 　　they called on us at home. 他们到家来拜访过我们。 　　we were called on by our neighbours before we had been settled in our new home a week. 　　我们迁入新居还不到一星期，邻居都来探望过我们了。

区别：来 call on [英][kɔ:l ɔn][美][kɔl ɑn] 号召; 叫; 要求; 拜访（某人）; 例句： The aim is to highlight the charity's call on governments, organisations and individuals to pledge their commitment to tackling climate change. 活动旨在强调世界自然基金会发出的自呼吁，2113号召政府、5261有关机构和个人践行应对气候变化问题所作出的承诺。 call at [英][kɔ:l æt][美][kɔl æt] 到…进行短暂访问; 停留; 例句： Although my stylists rarely come into my office, I personally e-mail and call at least 10 stylists every day. 虽然我的设计师们很少到办4102公室来，但我每天都会亲自给1653至少10位设计师发电子邮件、打电话。