时间介词(at, in ,on) 得用法
1.at
(1)时间得一点、时刻等。如:
’clock、
(at night, at noon, at midnight, at ten o’clock, at daybreak, at dawn)、
(2)后面接表示岁数得词。
、
(3)较短暂得一段时间。可指某个节日或被认为就是一年中标志大事得日子。如:
、
2、 in
(1)在某个较长得时间()内。如:
in 2004, in March, in spring, in the morning, in the evening, etc
(2),常用于将来时。
He will arrive in two hours、
These products will be produced in a month、
3、 on
(1)具体得时日与一个特定得时间,如某日、某节日、星期几等。如:
On Christmas Day(On May 4th), there will be a celebration、
(2)在某个特定得早晨、下午或晚上。如:
He arrived at 10 o’clock on the night of the 5th、
(3)准时,按时。如:
If the train should be on time, I should reach home before dark、
表示频率得副词用法详解
一、常见得频率副词
always,usually,often,sometimes, seldom,never、
1) always表示得频率为100%,意思就是"总就是、一直、始终"。
I always do my cleaning on Sundays、我总就是在星期天搞卫生。
2)usually与always相比,表示得频率要低些,约为70%-80%。意思就是"通常"。
Plants are usually green、植物通常就是绿色得。
Usually she goes to work by bus、她通常乘公共汽车去上班。
3)often得频率比usually又略低些,约为60%-70%,意思就是"经常"、"常常"。
Do you often write to them? 您常给她们写信吗?
Does Fred e here often? 弗雷德常来这儿吗?
4)sometimes得频率比often又低些,约为50%>sometimes>30%,意思就是“有时、不时”。Jenny usually eats a sandwich for lunch、Sometimes she eats soup、
5)seldom 得频率比sometimes还要低些约为20%左右,意思就是“很少”。
My father was seldom at home on Sundays、我父亲星期天很少在家。
6)never与always完全相反,就是100%否定,意思就是“从不,决不,总就是不“。
I can never stop、我绝不会停止。
Li Ming never wears dresses、李明从不穿裙子。
I would never do anything to hurt him、我绝不会做任何伤害她得事情。
二、频率副词示意图
三、频率副词在句中得位置
通常频率副词放在行为动词之前, be动词,情态动词或助动词之后。但就是sometimes最活跃。它既可以在句中也可以在句首,还能在句末。其它词如often 也可以放在句中也可以放在句末,这里就不一一列举了。
四、注意得问题
always得完全否定形式就是never,部分否定形式就是not always、例如:She always wears
a dress、她总穿裙子。(改否定句)
1)She never wears a dress、她从不穿裙子。(彻底否定)
2)She does not always wear a dress、她不总穿裙子。(部分否定)
有如:The rich are not always happy、富有未必就是幸福得。
时间介词用法练习:
( ) 1、Children get gifts ____ Christmas and ____ their birthdays、
A、on; on
B、at; on
C、in; in
D、in; on
( ) 2、----There is nothing ____tomorrow afternoon, is there?
-----No、We can have a game of table tennis、
A、on
B、in
C、out
D、up
( ) 3、A lot of students in our school were born____March, 1981、
A、in
B、at
C、on
D、since
( ) 4、He suddenly returned____ a rainy night、
A、on
B、at
C、in
D、during
( ) 5、My grandfather was born____Oct、10, 1935、
A、on
B、in
C、at
D、of
( ) 6、The train is starting___five minutes、
A、in
B、at
C、for
D、still
( ) 7、Mike does his exercises ____ seven _____ the evening、
A、on; to
B、at; in
C、by; of
D、at; on
( ) 8、Children wake up very early____the morning of Christmas Day、
A、in
B、on
C、for
D、at
( ) 9 ____ a cold winter morning, I met her in the stfeet、
A、In
B、On
C、At
D、For
( ) 10 It happened to be very cold____ the morning of our sports meeting、
A、at
B、on
C、with
D、of
( ) 11、Why did you get up so early ___ this morning、
A、on
B、/
C、at
D、in
( ) 12、He went to Shanghai___ September 3, 1991 and came back___ a cold morning last year、
A、in; on
B、on; in
C、on; on
D、in; ia
( ) 13、Lucy was born____ the night of May 12, 1984、、、、、