1、一般在動(dòng)詞詞尾加上-ing ,E.g. jump

2、以不發(fā)音字母e結(jié)尾的動(dòng)詞，先去e，再加-ing. E.g have write

3、.以重讀閉音節(jié)末尾只有一個(gè)輔音字母結(jié)尾的詞，它前面是單個(gè)元音字母時(shí)要先將詞尾的輔音字母雙寫，再加上-ing. E.g. sit put

其句式變換都在be上做文章。

E.g. He is buying a bike.

Is he buying a bike?

He isn’t buying a bike.

一般由look,listen,now, at this moment等時(shí)間狀語做標(biāo)志。

4、習(xí)慣進(jìn)行：表示長期的或重復(fù)性的動(dòng)作，說話時(shí)動(dòng)作未必正在進(jìn)行。

Mr. Green is writing another novel.

(說話時(shí)并未在寫，只處于寫作的狀態(tài)。)

She is learning piano under Mr. Smith.

5、表示漸變的動(dòng)詞有：get, grow, become, turn, run, go, begin等。

The leaves are turning red.

It's getting warmer and warmer.

6、與always, constantly, forever 等詞連用，表示反復(fù)發(fā)生的動(dòng)作或持續(xù)存在的狀態(tài)，往往帶有說話人的主觀色彩。

You are always changing your mind.

典型例題

My dictionary ___, I have looked for it everywhere but still___ it.

A. has lost, don't find　　 B. is missing, don't find　C. has lost, haven't found　 D. is missing, haven't found.

答案D. 前句是一個(gè)仍在持續(xù)的狀態(tài)，應(yīng)用進(jìn)行時(shí)，由于沒有找到，其影響仍然存在，應(yīng)用完成時(shí)，瞬間動(dòng)詞用于否定式時(shí)可用于完成時(shí)。

　　 歡迎使用手機(jī)、平板等移動(dòng)設(shè)備訪問中考網(wǎng)，2024中考一路陪伴同行！>>點(diǎn)擊查看