來源:網(wǎng)絡(luò)資源 2023-08-15 22:06:47
1. 動(dòng)詞變化:一般現(xiàn)在時(shí)主要用動(dòng)詞原形表示,但第三人稱單數(shù)后要加詞尾-s,另外be和have有特殊的人稱形式。
在加詞尾-s時(shí)要注意:
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2. 一般現(xiàn)在時(shí)主要表示:
(1)經(jīng)常性或習(xí)慣性的動(dòng)作,常與這樣的時(shí)間狀語(yǔ)連用:always, often, usually, sometimes等
eg: We always help each other.
It often snows in winter.
I get up early every morning.
(2)表示主語(yǔ)現(xiàn)在的特征、性格、能力等。
eg: He loves sports.
Jane is an outgoing girl.
Tom and Tim both have medium height.
(3)表示客觀、普遍真理
eg:
Two and four makes six.
Water boils at 100℃
The moon moves round the earth.3. 一般現(xiàn)在時(shí)的疑問句一般以在句首加助動(dòng)詞do,does的方式構(gòu)成。第三人稱單數(shù)加does,其他加do,這時(shí)動(dòng)詞一概用原形;動(dòng)詞be只需與主語(yǔ)位置對(duì)調(diào)就行了。
eg: Do you like English?
Do they have story books?
What does she do every evening?
Is she at home?
Are you good at English?
4. 一般現(xiàn)在時(shí)的否定式是do not(don’t)或does not (doesn’t)+動(dòng)詞原形來構(gòu)成的,be動(dòng)詞做謂語(yǔ)動(dòng)詞只需在be后加not構(gòu)成否定。
eg:
I don’t like oranges at all.
She doesn’t work in the TV station.
They aren’t students.
I’m not busy every weekend.
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