We have classes and watch a film after school.这个句子的过去式:
We had classes and watched a film after school.
一. 时态变化原则:
变过去时,需要找到谓语动词,变成相应的过去式形式。
二. 句子的翻译:
我们上课,然后放学后看电影。
三. 句子的成分分析:
We ,主语;
had ,谓语动词;
classes,宾语;
and并列连词,连接俩个谓语;
watched, 谓语动词;
a film ,名词作宾语;
after school,介词短语作时间状语;
四. 重点短语:
1. have classes,上课;
例句:
I have classes all the time!
我一直都在上课!
We don't have classes on Saturday.
我们星期六不上课。
We have classes this afternoon.
我们下午有课。
2. after school,放学后;
例句:
We played soccer after school.
放学后我们踢过足球。
Do your homework after school.
放学后要做家庭作业。
The children are allowed to watch TV after school.
孩子们被允许在放学后看电视。
五. 过去式的变化规则,
1. 规则动词规律:
1.)一般情况下,在动词原形后直接加ed;
例如:wanted,played。
2.)以不发音的字母e结尾的动词,直接加d;
例如:hoped,lived。
3.)重读闭音节单词需双写最后一个辅音字母,再加ed;
例如:stopped,shipped。
4.)以辅音字母+y结尾的动词变y为i,再加ed。
例如:studied,worried。
2. 不规则动词过去式、过去分词的变化规律:
⒈)A---A---A型(现在式、过去式、过去分词同形)
动词原形(现在式)过去式,过去分词
cost cost cost 花费
put put put 放下
read read read 读(读音是ABB型)
hurt hurt hurt 伤
forecast forecast,forecast 预告
⒉)A---A---B型(现在式和过去式同形)
beat beat beaten 打
bear bore born 忍受
⒊)A---B---A型(现在式和过去分词同形)
come came come 来
become became become 变
⒋)A---B---B型
⑴在动词原形后加一个辅音字母d或t构成过去式或过去分词。
burn burnt burnt燃烧
learn learned/learnt learned/learnt学习
⑵把动词原形的最后一个辅音字母“d”改为“t”构成过去式或过去分词。
build built built 建筑
lend lent lent 借给
bend bent bent 弯腰
⑶其他
pay paid paid 付
lay laid laid 下蛋
have的过去式had,watch的过去式watched。
过去时态有多种情况:
一般过去时态,强调的是过去的动作,发生在过去。She watched the film yesterday她昨天看了这部电影。
过去进行时态,强调的是过去某一段时间,即正在进行,He was playing the piano at this time yesterday他昨天这个时候在弹钢琴。
过去完成时态,强调动作发生在过去的过去,即过去的过去,He had finished his homework他已经完成了他的家庭作业,动作发生在过去的过去,是现在进行时的过去。
过去将来时态,强调过去对将来的规划或对未来的期待,He would achieve his goals他将完成他的目标。
过去完成将来时,时态较为复杂错综,构成是主语+would+have done sth常不单独使用,用于虚拟语气中,表示与将来时态的相反情况。He would have created many works if he had gone it on.如果他过去坚持下去,他将来可以创作出更多作品。
以上就是几种过去时态,希望可以帮到您。