3.The teacher often takes his students to visit Shanghai Museum ______ Saturdays.

03-03

摘要： 3.The teacher often takes his students to visit Shanghai Museum ______ Saturdays.
A. in B. by C. at D. on
【答案】D
【解析】
【详解】句意：老师经常在周六带他的学

3.The teacher often takes his students to visit Shanghai Museum ______ Saturdays.
A. in B. by C. at D. on
【答案】D
【解析】
【详解】句意：老师经常在周六带他的学生们去参观上海博物馆。
考查介词辨析。in在（一段时间）；by到……时间为止；at在某一时刻；on在具体某一天。此处表示在具体某一天“周六”，用时间介词on。故选D。
【点睛】时间介词on 表示具体的日期、星期几或节日等，在具体的某一天，在具体某一天的早晨、中午或者晚上等。
例如on Monday; on the following day; on New Year’s Day; on the weekend; on a rainy day。