現在進行時的句子有哪些（現在進行時的句子100道）

One of the earliest epidemics on record happened about 500-550 AD when the Roman emperor at the time was attempting to rebuild the Roman Empire.

歷史上有記載的最早的傳染病之一發生在公元500-550年，當時的羅馬皇帝正在試圖重建羅馬帝國。

句子結構分析

語法知識

①，earliest 為 early 的最高級形式；

②，本句包含一個when引導限制性定句，從句中運用了過去進行時

③，happened 為謂語，采用一般過去時。

④，when 為連詞，引導時間狀語從句。

⑤，attempting 為謂語，采用一般過去進行時。

⑥，to rebuild 為不定式，作賓語。

⑦，was 為助動詞。the 為定冠詞。

語法拓展

過去進行時的構成:

was/were doing,表示“過去某個時間正在進行的動作”。常用的時間狀語有：this morning, the whole morning ,from nine to ten last evening, when, while:

過去進行時的用法:

⑴表示過去某一時刻正在進行的動作

* We were expecting you yesterday.

我們昨天一直在等你。

* Was he watching TV when you came back?　

你回來的時候，他正在看電視嗎？

* While my mother was watching TV, I was making a kite.

我媽媽在看電視的時候，我在制作風箏。

⑵描繪一幅景象或故事背景

* Some children were playing games on the bank and there were some people rowing on the river.

河岸上有些孩子正在玩耍，河面上有些人正在劃船。

* It was snowing as the medical team made its way to the front.

那支醫療小組往前線行進時，天正下著雪。

⑶ 表示按計劃、安排過去某時將要發生的動作

* A train was leaving at midnight for Beijing.

半夜有一趟列車開往北京。

* They said that they were going back to their own country.

他們說他們將回自己的國家。

⑷ 與always, constantly, continually, forever 等連用，表示感情色彩

* He was always thinking of his work.

他總是一心想著他的工作。

* She was forever complaining.

她老是抱怨。