in on at的用法

比如说（　　）the evening of Octorber 1st,2009

是填哪一个？

再列举in on at在时间里的用法，谢谢！！！

答得好，追加悬赏！！！！！

这三个词用于表达时间

in

1. 表示一天的某个部分如：

I work more efficiently in the morning 我早晨工作效率更高些

I am going to have a meeting in the afternoon 下午我有个会议

2. 用于较长的时间，如星期，月，季，处或世纪等

They are going to attend the short-term training courses in the September

他们将于九月去参加短期培训班

People usually sleep on the sidewalks in Wuhan in the summer

夏季武汉人常睡在人行道上

3. 还可以用来表示某事再过多久将要发生或某事要花多少时间

I will see you again in a week's time

过一星期我还要和你见面

I will give it back to you in two hours

我将在两个小时后把它还给你

You must bring the book in two weeks

你过两星期必须把书还回来

on

1. 表示在一周中星期几，某月中几号，某个节日或节日的夜晚

I will come back on Thursday

我星期四回来

The ceremony was performed on April 15

仪式是4月15日举行的

My sister brought me a big cake on my birthday

我姐姐在我生日时给我送来一个大蛋糕

2. 如果未指明具体某一天的上午，下午或傍晚时，也要用 on 而不用 in

I remember he arrived on a Monday morning

我记得他是在一个星期一的早晨到的

On a warm aftenoon in May ,I was seized with restlessness

五月里一个温暖的下午，我感到坐卧不安

On the night I have nothing particular to do ,I often go for a walk

在无事可做的晚上，我常常出去散步

It happened on Saturday evenin

此事发生在星期六的傍晚

注： on 用于指某一天的傍晚，而in 则用于泛指点一般的傍晚。在last next this 之前 on 须省略

I saw him last May

去年五月我见到了他

I will see you next Sunday

下个星期天再见

at

1. 表示时间的一个点：时刻

We are going to meet at eight tomorrow morning

我们打算在明天早晨八点碰头

She will be home at exactly half past nine

她将在九点半准时到家

Some people are used to working at night

有些人习惯于夜间工作

At the bigining of that month,I was sick

那个月初我生病了

2. 指周末或节日

I will entertain you at the weekend

这个周末我请你吃饭

She received a lot of gifts from her students at Christmas

圣诞节她收到了许多学生送的礼物

3. 表示年岁

I left home at the age of fifteen

我十五岁就离开了家

In China a person comes to age at eighteem

在中国年满十八岁成年

The poet died at thirty years of age

那个诗人三十岁就去世了

in是在***里面

on是在***上面

at是在***

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