一般現(xiàn)在時英語語法大全
一般現(xiàn)在時
A、當謂語是be動詞時,構成為:主語+be動詞( am, is, are )+其他。
如:I am a student.
B、當謂語是行為動詞時,構成有兩種:
(1)主語(非第三人稱單數(shù))+動詞原形+其他。
如:We often watch TV at the weekends.
(2)主語(第三人稱單數(shù))+動詞第三人稱單數(shù)形式+其他。
如:Jim usually goes to the park on Sundays.
C、句型變換:
肯定句、否定句、一般疑問句及回答
They watch TV at six every day.
They don’t watch TV at six every day.
Do they watch TV at six every day?
Yes, they do. / No, they don’t.
She watches TV at six every day.
She doesn’t watch TV at six every day.
Does she watch TV at six every day?
Yes, she does. / No, she doesn’t.
一般現(xiàn)在時的用法
1) 經常性或習慣性的動作,常與表示頻度的時間狀語連用。
時間狀語: every…, sometimes, at…, on Sunday
I leave home for school at 7 every morning.
2) 客觀真理,客觀存在,科學事實。
The earth moves around the sun.
Shanghai lies in the east of China.
3) 表示格言或警句中。
Pride goes before a fall. 驕者必敗。
注意:此用法如果出現(xiàn)在賓語從句中,即使主句是過去時,從句謂語也要用一般現(xiàn)在時。
例:Columbus proved that the earth is round..
4) 現(xiàn)在時刻的'狀態(tài)、能力、性格、個性。
I don't want so much.
Ann Wang writes good English but does not speak well.
【比較】
1. Now I put the sugar in the cup. 2. I am doing my homework now.
第一句用一般現(xiàn)在時,用于操作演示或指導說明的示范性動作,表示言行的瞬間動作。再如:Now watch me, I switch on the current and stand back. 第二句中的now是進行時的標志,表示正在進行的動作的客觀狀況,所以后句用現(xiàn)在進行時。
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