基本用法:
(1)表示(說話瞬間)正在進(jìn)行或發(fā)生的動作。
(2)也可表示當(dāng)前一段時間內(nèi)的活動或現(xiàn)階段正在進(jìn)行的動作。
(二)謂語構(gòu)成:be (am/ is/ are)+v-ing (動詞的現(xiàn)在分詞)
I’m watching TV now.
They’re playing football.
(三)現(xiàn)在分詞的構(gòu)成。
(1)一般情況下在動詞詞尾加ing。
go→going ask →asking look→looking
(2)以不發(fā)音的e結(jié)尾的動詞,去掉e加ing。
have →having take→taking make→making write→writing
(3)以一個輔音字母結(jié)尾的重讀閉音節(jié),雙寫最后一個字母,再加-ing。
get→getting sit→sitting put→putting run→running
swim→swimming begin→beginning shop→shopping
(四)現(xiàn)在進(jìn)行時態(tài)的肯定式、否定式、疑問式及簡略回答。
(1)肯定式:be+v-ing She is singing in the next room.
(2)否定式:be+not+v-ing The students aren’t cleaning the room.
(3)一般問句:be動詞提前。
肯定答語Yes,主語+be,否定答語No,主語+be not。
Are you playing the computer game? Yes, I am. /No, I am not.
(4)特殊問句:對謂語動詞進(jìn)行提問的:What+be +主語+doing+其他?
What is the old man doing under the tree?
對其他成份進(jìn)行提問的,疑問詞+一般疑問句?
Where is the boy swimming?
Who is she waiting for?
三. 現(xiàn)在進(jìn)行時與一般現(xiàn)在時的區(qū)別
(一)現(xiàn)在進(jìn)行時表示動作的暫時性,而一般現(xiàn)在時表示動作的習(xí)慣性和經(jīng)常性
I am watching TV now. (暫時性)
I watch TV every day. (經(jīng)常性)
(二)現(xiàn)在進(jìn)行時可表示短暫性動作,而一般現(xiàn)在時表示長久性動作。
Lucy is living in Beijing.(短時間居?。?br>Lucy lives in Beijing. (長久性居住)
(三)現(xiàn)在進(jìn)行時表示的動作可帶有感情色彩,而一般現(xiàn)在時所表述的動作通常是事實。
You’re always forgetting the most important things. (責(zé)備)
He is always helping others. (贊揚(yáng))
He often helps others. (事實)
(四)有些動詞不能用進(jìn)行時,know, understand, love, like, hate, wish, want, think, hope, have, believe, agree, hear, see, notice,等等。這些動詞通常用一般現(xiàn)在時表示說話時發(fā)生的動作。
I have a lot of friends here.
She wants to buy a new bike.
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