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①There was a heavy rain during the night.

②Two teas, please

③There is a wind shaking the window.

④Do it a second time, and I'm sure you will succeed.

⑤祈使句后用and表示好结果，用or表示坏结果

⑥表“某一”（a certain）A Mr. Smith wants to see you.一个名叫史密斯的人想见你。

He has just come back from a Beijing factory.

⑦a most :一个最……的

Beijing is a most beautiful city in the world.北京是一个最漂亮的城市之一。

⑧不定冠词用于单数可数名词前表示身份、职业，尤其用在作表语或宾补的名词前。

⑨独一无二的职位名词在句中做表语、补语和同位语时，一般不用冠词，但是如果做了句子的主语或宾语的时候，要在前面加冠词。

He is captain of the team.

Zhang Feng, monitor of their class, is good at English.

The manager of the company is good at communication.公司的经理擅长于交流。

①表示“同一”相当于the same。即：be+of+a/an+n=be+of+the same + n

The two boys are of an age.

Cotton of a kind was stored together in a house.

②不定冠词用在表示数量、长度、时间等的计数单位的名词前，表示“每一”

We have three meals a day.

They met each other once a month.

The car moved 100 miles an hour.

The envelopes are one yuan a dozen.

Emily goes to see her grandmother twice a week.

with a light heart 愉快地

With a light heart, we went to the park.

all of a sudden = suddenly

take an active part in 积极参加

have a toothache牙疼

have a word with sb.同某人谈话

once in a while 偶尔

in a hurry= quickly

at a time 每次

as a whole作为整体

in a word总之