現(xiàn)在進(jìn)行時(shí)

結(jié)構(gòu)：am/is/are+ doing

用法：

1. 現(xiàn)在( 指說(shuō)話人說(shuō)話時(shí)) 正在發(fā)生的事情。

 We are waiting for you.

2.當(dāng)前一段時(shí)間內(nèi)正在進(jìn)行的動(dòng)作，說(shuō)話時(shí)動(dòng)作未必正在進(jìn)行。

 Mr. Green is writing another novel.

(說(shuō)話時(shí)并未在寫(xiě)，只處于寫(xiě)作的狀態(tài)。)

3. 表示顏色、溫度、年齡等正在漸變，說(shuō)話的瞬間變化不一定明顯，動(dòng)詞有g(shù)et, grow, become, turn, run, go, begin等。

 The leaves are turning red.

 It''s getting warmer and warmer.

4. 與always, constantly, forever 等詞連用，表示反復(fù)發(fā)生的動(dòng)作或習(xí)慣性的動(dòng)作，常表示不滿、抱怨或贊賞等情感。

 You are always changing your mind.（含不滿之意）

She is always helping others.(含贊賞之意)

5.進(jìn)行時(shí)表將來(lái)時(shí)，常見(jiàn)的動(dòng)詞有come, go, leave, arrive, return, die, stay等。

The train is arriving soon.

My sister is returning at two this afternoon.

不用進(jìn)行時(shí)的動(dòng)詞

1) 事實(shí)狀態(tài)的動(dòng)詞

have（有）, belong, possess, cost, owe, exist, include, contain, matter, weigh(重達(dá)…), measure(尺寸是…), continue

I have two brothers.

This house belongs to my sister.

2) 心理狀態(tài)的動(dòng)詞

know, realize, think, see, believe, suppose, imagine, agree, recognize, remember, want, need, forget, prefer, mean, understand, love, hate

I need your help.

He loves her very much.

3 ) 瞬間動(dòng)詞

accept, receive, complete, finish, give, allow, decide, refuse.

I accept your advice.

4) 系動(dòng)詞

seem, remain, lie, smell, feel, taste, get, become

You seem a little tired.

1.和被動(dòng)語(yǔ)態(tài)放在一起考查；2.現(xiàn)在進(jìn)行時(shí)表一般將來(lái)；3.現(xiàn)在進(jìn)行時(shí)表抱怨、批評(píng)、贊揚(yáng)的用法。

1. 現(xiàn)在進(jìn)行表一般將來(lái)的動(dòng)詞不熟悉；2. 被動(dòng)語(yǔ)態(tài)的現(xiàn)在進(jìn)行時(shí)出錯(cuò)；3.辨別不出是在表抱怨、贊揚(yáng)等，因此不敢用現(xiàn)在進(jìn)行。                                               

【典型例題】

1. Although the causes of cancer____ , we do not yet have any practical way to prevent it.

A. are being uncovered B. have been uncovering

C. are uncovering D. have uncovered

解析：因被動(dòng)語(yǔ)態(tài)的現(xiàn)在進(jìn)行時(shí)不熟悉而錯(cuò)選D。應(yīng)該是“盡管癌癥病因的面紗正在被揭開(kāi)，但我們還是沒(méi)有什么切實(shí)的方法來(lái)預(yù)防它。”正確答案A。

2.Ladies and gentlemen, please fasten your seat belts, the plane ____.

A. takes off B. is taking off C. has taken off D. took off

解析：錯(cuò)選A。本題是現(xiàn)在進(jìn)行表一般將來(lái)，“先生們，女士們，請(qǐng)系好安全帶，飛機(jī)要起飛了?！闭_答案B。

3. You ____ television. Why not do something more active?

A. always watches  B. are always watching

C. have always watched D. have always been watching

解析：錯(cuò)選A。根據(jù)第二句話“為什么不做點(diǎn)積極點(diǎn)的事情呢？”可知，說(shuō)話人有不滿的情緒。因此前面應(yīng)是“你老是看電視”。故正確答案B。