内容正文:
一般过去时
一般过去时表示过去某个时间发生的动作或存在的状态,也可表示过去经常
或反复发生的动作。常和yesterday,ago,last week等表示过去的时间状
语连用。
一、概念
表示在的过去某个时间里所发生的动作或存在的状态。通常在句子里找到
表示过去时间的词或词组。如:yesterday,.yesterday morning,yesterday
afternoon.yesterday evening.the day before yesterday().last
night,last week,last month,last year,a moment,ago(刚中),just
now(刚扌),two days ago,a week ago,in1990等。
如:I went to bed at eleven last night.昨晚我ll:00睡觉。
二、动词过去式的构成规律
(一)规则动词的过去式
1.一般情况下,在动词原形后面加-ed;如:look→looked play-→played;
2.以不发音e结尾的动词,在词尾直接加-d;如:live→lived use→used;
3.以“辅音字母+y”结尾的动词,先将y改为i,再加-ed;如:study→
studied,try→tried fly→flied
4.以重读闭音节(即辅音+元音+辅音)或r音节结尾,末尾只有一个辅音字
母的动词,要先双写这个辅音字母后,再加-ed。如:stop→stoppedplan
→planned;
(二)不规则动词的过去式(背不规则动词表)
三、句式变化
(一)一般过去时的一般疑问句
1、把was,were放在句首,其余位置不变。由Was..?引导的一般疑
问句,肯定答为:Yes,.Was.否定回答为:No,..wasn't.由Were.?
引导的一般疑问句,肯定回答为:Yes,.were.
否定回答为:No,.weren't.
如:(l)I was born in Shanghai.
-Were you born in Shanghai?
→Yes,Iwas.(肯定回答)
→No,lwasn't.(否定回答)
(2)They were in Li Yan's home last night.
Were they in LiYan's home last night?
→Yes,they were.(肯定回答)
→No,they weren't.(否定回答)
2、在行为动词的句子中,要用助动词词did来引导,其余的语序不变。
要注意的是,要把行为动词的过去式改为原形。肯定回答为:Yes,did.
否定回答:No,..didn't.如:
John played computer games last night.
Did John play computer games last night?
→Yes,he did.(肯定回答)
→No,he didn't.(否定回答)
(二)一般过去时的否定句
l.在表示过去存在的状态的句子中,相接在Was,were的后面加上not。
如:
(1)He was in the park the day before yesterday.
He was not in the park the day beforeyesterday.
(2)We were busy last week.
We were not busy last week.
2.在表示过去的时间发生的动作的句子中,要在行为动词的前面加助动
词didn't.然后把过去式的行为动词改为动词原形。即:didn't+动词原形。
如:
(1)She played the violin last night.
She didn'tplay the violin last night.
(2)They swam in the lakeyesterday.
They didn'tswim in thelake yesterday.
(三)一般过去式的特殊疑问句
1.What did..?(主要是询问过去发生了什么事情,注意要把过去式改
为动词原形。)
We ate Chinese food lastnight.
-What did weeat last night?
2.Where did?(主要是询问过去事情发生的地方。)
They sang and dance in the musicroomyesterday morning.
Where did they singand danceyesterday morning?
3Who+动词过去式.?(主要是询问过去事情发生的人物。)
Mike and Tom climbed mounta