room和noon的發音不一樣。

room

美 [rum] 英 [ruːm]

n.房間；室；空間；客房

v.租房；合住

網絡:餘地；地方；場所

複數：rooms 現在分詞：rooming 過去式：roomed

例句:So afraid was Amy for her own safety that she did not leave her dorm room for a full week after the threats.

因為極度擔心自己的安危，艾美在受到恐嚇後一週都沒邁出過臥室半步。

noon

美 [nun] 英 [nuːn]

n.中午；正午

v.〈美〉午時休息

網絡:全盛期；當午；亭午

例句:I've got to meet you by tomorrow noon, and cut through all this red tape.

我必須在明天中午滿足你，並通過這一切繁文縟節削減。

room 和noon 讀音既有相同之處，也有些區別。

room的 oo 可以讀作長元音 [u:]，也可以讀作短元音 [u]，而 noon 只能讀作長元音 [u:]。

表示時間的區別：

at指時間表示：

1. 時間的一點，一時刻：

They come home at surprise (at noon, at midnight, at ten o’clock, at daybreak, at dawn).

他們出其不意地回家（中午、午夜、十點鐘、黎明）。

2. 較短的一段時間。可指某個節日或認為一年中標誌大事的日子。

His grandfather died at seventy-two.

他祖父七十二歲去世。

At the beginning (middle, end) of that month he was sick.

那個月初（中、末）他病了。

He went home at Christmas (at New Year, at the spring Festival, at night, at midsummer).

他在聖誕節回家（新年，春節，晚上，仲夏）。

in指時間表示：

1. 在某個較長的時間（如世紀，朝代，年，月，季節，及泛指的上午，下午和晚上等）內。

He died in the holidays.

他在假期去世了。

He was born in 1942.

他出生於1942年。

2. 在一段時間之後。

He will come round in a day or two.

他一兩天後就會回來。

I will finish it in three hours.

我將在三小時內完成它。

on指時間表示：

1. 具體的時日和一個特定的時間，如某日，某節日，星期幾等。

He will come to meet us on our arrival.

我們一到他就來接我們。

On May 4th (On Sunday, On New Year’s day, On Christmas Day), there will be a celebration.

5月4日（星期天，元旦，聖誕節），會有慶祝活動。

2. 在某個特定的早晨，下午或晚上。

He arrived at 10 o’clock on the night of the 5th.

他是5日晚上10點到的。

He died on the eve of victory.

他在勝利前夕去世了。

3. 準時，按時。

If the rain should be on time, I should reach home before dark.

如果下雨的話，我應該在天黑之前到家。

表示地點的區別

in 表示地點

1. in 表示比較大的地方

in Shanghai

in London

in Beijing

2. 雖然是很小的地方，如果說話人住在那裡，也可用in，商店，機關，學校等，若看作一個地點（point)用at，若看作一個場所（place)用in。

I met him at the post-office.

我在郵局遇見他。

I’m now working in the post-office.

我現在在郵局工作。

On表示地點

一般指與面或線接觸：

1. “在…上面”

He put the book on the table and sat on the chair.

他把書放在桌子上，坐在椅子上。

The picture was hanging on the wall.

那幅畫掛在牆上。

2. “在…… 旁邊”

NewYork is on the Hudson River.

紐約在哈德遜河畔。

Xiamen is on the river.

廈門在河邊。

He lives in a house on the river.

他住在河邊的一所房子裡。

常用短語

在英語中介詞的使用頻率比較高，而介詞in, on和at又是介詞中使用頻率比較高的詞，收集了介詞in, on 和at表示時間，地點和狀態的常見的短語, 請注意一些短語用不同的介詞，意義不同，有些區別不大。

表示時間:

in 表示時間

in 1999, in 20 century, in a flash(瞬時),

in a lucky hour(在幸運時刻), in a minute,

in a second, in a short time, in a while,

in a wink(一瞬間) in advance(預先),

in an emergency(在緊急地時候), in an evil hour(在不幸地時刻), in an instant, in ancient times, in broad day(在大白天),

in course of, (在…期間), in December,

in due course(及時地), in future, in good season(及時地),

in no time(馬上), in one's childhood, in one's spare time,

in one's teens, in one's youth, in recent years,

in season(適時), in seconds(在很短的時間),

in some cases(有時候), in spring, in the afternoon,

in the beginning, in the daytime, in the end, in the evening,

in the future, in the long run(最後), in the meantime,

in the morning, in the nick of time(在緊急關頭), in the night,

in the past, in the thick of (在最激烈的時刻),

in the thick of(在最激烈的時刻), in this period, in those days,

in time of war, in time

on 表示時間

on a certain day, on a sudden(突然), on a winter morning,

on Christmas Day, on night shift, on one's birthday,

on schedule(按時), on Sunday, on that date, on the eve of,

on the following day, on the instant(馬上),

on the moment(立刻), on the Monday morning,

on the New Year's Eve, on the next morning,

on the point of(正在…時候), on the spur of the moment(立刻) on this day, on this occasion, on time

at 表示時間

at a time(在某時), at a wedding(婚禮), at all times(一直),

at any moment, at any time, at Christmas, at dark (天黑時),

at dawn(在黎明), at daybreak, at dinner-time, at dusk(在黃昏), at Easter, at first sight,(一見到), at first, at last, at midnight,

at night, at nightfall, at noon, at present, at six clock,

at sunrise, at sunset, at that moment, at that time,

at the age of, at the beginning of , at the correct time,

at the end of, at the last minute, at the moment,

at the present stage at the same time, at the stage(眼下)

at the start, at the time being, at the time of, at the very start, at this point(此時), at this season, at this time of day,

at times(有時）

表示地點

in 表示地點

in a car, in a queue, in advance of (在…前面),

in all the direction, in appearance, in corners(在角落裡)

in doors, in front (of), in good light(在光線好的地方),

in heaven, in place(position)(在適當地位置), in places(處處),

in port(在港內), in public places, in shore(靠岸), in society,

in the air(在空中) in the bank, in the book(書的內容裡),

in the centre(在中央), in the countryside,

in the distance(在遠處那邊), in the east of(在…東部)

in the east, in the fields, in the film, in the front rank(在前列),

in the front row, in the lab, in the letter(信的內容),

in the middle of, in the moonlight,

in the newspaper(報紙的內容裡), in the open air(在戶外),

in the open(在野外), in the picture, in the rain, in the room,

in the shade of, in the sky, in the suburbs of, in the sunshine, in the tree, in the universe, in the vicinity of(在附近),

in the warm(在暖和的地方) in the world, in(on) the bus,

in(on) the street

on 表示地點

on board (在船上) on camera(出現在電視上), on campus,

on deck(在甲板上), on earth, on 表示地點 on high(在高處),

on land, on the bank, on the beach, on the borders,

on the ceiling, on the coast, on the committee,

on the corner(在拐角處), on the east of(在…的東面)

on the farm, on the first floor, on the footba