來源:網絡資源 2023-08-15 22:06:47
1. 動詞變化:一般現在時主要用動詞原形表示,但第三人稱單數后要加詞尾-s,另外be和have有特殊的人稱形式。
在加詞尾-s時要注意:
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2. 一般現在時主要表示:
(1)經常性或習慣性的動作,常與這樣的時間狀語連用:always, often, usually, sometimes等
eg: We always help each other.
It often snows in winter.
I get up early every morning.
(2)表示主語現在的特征、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. 一般現在時的疑問句一般以在句首加助動詞do,does的方式構成。第三人稱單數加does,其他加do,這時動詞一概用原形;動詞be只需與主語位置對調就行了。
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. 一般現在時的否定式是do not(don’t)或does not (doesn’t)+動詞原形來構成的,be動詞做謂語動詞只需在be后加not構成否定。
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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