内容正文:
上学期期中考点大串讲
清单07 Unit 4时间介词+专题过关
时间介词in;on;at
一、介词的意义:介词是虚词, 只有与跟在它后面的宾语一起构成介词短语才能在句子中起作用。
(1) In.表示一段时间:a. 用于泛指一天的上午、下午、傍晚: in the morning/afternoon/evening
b. 用于某个较长的时间: 年/月/季节 ·in May; ·in spring; ·in 2020; in the 21st century;in the 2010s; in Tom’s fifties
注意:
in the morning 指的并不是在某天的早上,而是每天早上。泛指、具有普遍性。
具体的某天早上必须用介词on: on Saturday morning = on the morning of Saturday
on the morning of teachers’ day; on the morning of may 12th; on a warm sunny morning
in the beginning/end: 泛指事情开始的开头/结尾,如果涉及到具体某件事,就必须用介词at:
at the beginning/end of….
(2) On.表示某一段时间,特指某天或某天的上午,下午或晚上;表示具体的日期,某年某月某日,或某月某日
a. 用于日期前: on May 20th; on September 10th; on the morning of October 1, 1997; on the first day of summer holiday; on a sunny morning.
b. 用于星期前: on Saturday; on Sundays/weekdays/weekends
on Monday morning; on the afternoon of Thursday
on weekends = on the weekend = at weekends
c. 用于节假日前: on Teachers’ Day; on Christmas Day/Eve; on National Day; on Tom’s birthday
注意:
1. on holiday; on vacation: on表示正处于,正在进行中。
2. at: 指前后一段较短时间; at New Year(在新年期间) at Christmas (在圣诞节期间)
on: 指就在这一天; on New Year’s Day(在元旦那天) on Christmas Day (在圣诞节)
(3)At.表示具体时间,时间的某一点,某一时刻,或具体年龄
a. 用于具体的钟点前: at 10:00; at 5:45
b. 用于短暂的时刻前: at noon/ night/ midday/ midnight; at dusk(黄昏)/ sunset; at dawn(黎明)/ sunrise/ daybreak (黎明)
c. 用于进餐的时间前: at breakfast/lunch/supper(在早餐时/午餐时/晚餐时)
d. 用于年龄前面: at 14 =at the age of 14
e. 用于一些固定搭配中: at Christmas ·at New Year; at Thanksgiving(感恩节)
at first(起初) ·at last(终于); at the moment此时此刻; at that/this time; at this time of last summer; at a good/bad time of year; at the beginning/end of this month;
2、 省略介词的用法
a. 在last, this/that, next与时间名词连用时: last summer; this week; next month; that year;last/that night
b. 在yesterday, today, tomorrow等副词前:
the day before yesterday; yesterday; today; tomorrow; the day after tomorrow
yesterday morning/ afternoon/ evening
this morning/ afternoon/ evening
tomorrow morning/ afternoon/ evening
三、其他介词:
在…之前: before 5:00; before Monday; before June; before summer; bef