來源:網(wǎng)絡(luò)資源 2022-11-17 16:48:21
一般過去時
(1)一般過去時表示過去某一時間所發(fā)生的動作或存在的狀態(tài)。
① 當(dāng)動詞為 be 動詞時,應(yīng)該用相應(yīng)的過去式:
am is----was;are----were
否定形式為:was not----wasn’t;were not----weren’t
疑問句是將 was, were 置于主語之前。
I was in Grade Three last term.
I wasn’t in Grade Two last term.
Which grade were you in?
② 當(dāng)動詞為實義動詞時,用動詞的過去式,過去式的變化有規(guī)則和不規(guī)則變化。規(guī)則變化如下:
變化規(guī)則 | 例詞 |
一般情況在詞尾加-ed | worked |
以-e 結(jié)尾的在詞尾加-d | used;lived |
以輔音字母加 y 結(jié)尾的,變 y 為 i 再加-ed | studied;carried |
重讀閉音節(jié)末尾只有一個輔音字母的,雙寫此輔音字母再加 -ed | stopped;fitted |
動詞過去式的不規(guī)則變化需要逐個記憶。見初三教材后的不規(guī)則動詞變化形式表。
go----went;begin----began;sleep----slept;run----ran;
I heard the good news just now.
The twins didn’t go to school last week.
Did you see the film yesterday ?
(2)一般過去時的用法
① 表示過去某一時間或一段時間發(fā)生的動作或存在的狀態(tài)。常和表示過去的狀語連用:yesterday, last week, a minute ago, in 1998, just now, in those days 等。例如:
They had a baby last month.
My mother was ill yesterday.
He went out just now.
② 用于 since 引導(dǎo)的從句,主句的謂語動詞如果用現(xiàn)在完成時,since 引導(dǎo)的從句一般要用一般過去時。如:
He has worked in the factory since it opened in 1990.
You haven’t changed much since we last met.
注意:
a.)表示過去的時間狀語常見的有:yesterday, last night(week, year, month, Sunday), then, at that time, just now, a few days(weeks, months) ago.以及由 after, before, when, while 引導(dǎo)的的表示過去的時間狀語。
b.)一般過去時可以用來表示現(xiàn)在的時間, 這主要用于日常會話,使用的語氣較為婉轉(zhuǎn)客氣。如:
I wanted to ask if I could borrow your bike.
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