牢记四个四,学好过去时
四种用法
①表示在过去某个时间发生的动作或情况。I went to school at 7:00 yesterday morning.
②表示在过去某个时间存在的状态。She was not at home last night.
③表示在过去经常或反复发生的动作,常和often(经常)、always(总是)、sometimes
(有时)等表示频率的时间状语连用。He often had lunch at school last month.
④表示已故的人所做的事情或情况。Ba Jin wrote a lot of novels for us.
四种时间状语
① yesterday及相关短语。yesterday morning/afternoon/evening
② “last+ 时间状语”构成的短语。last night/month/spring/year
③ “一段时间+ago”组成的短语。three days ago\ four years ago
④ “介词+ 时间名词”组成的短语。in 1999;on the morning of December 25th
四种谓语动词的表现形式
① be动词的过去式was、were。She was a teacher five years ago.
② 行为动词的过去式,分为规则动词和不规则动词两种。规则动词的过去式的构成遵循以下四个规则:1)直接在动词后加ed,例如:help-helped; want-wanted等; 2)以不发音的字母e结尾时,去掉e加ed (即直接加d) , 例如:like-liked; use-used等;3)以辅音字母y结尾时,把y变成i再加ed, 例如:carry-carried; study-studied等;4)以重读闭音节结尾,双写最后一个辅音字母再加ed, 例如:stop-stopped; shop-shopped等。而不规则动词的过去式则需要我们认真下工夫去记了,例如:go-went; come-came; buy-bought等。
③ 连系动词的过去式。e-became She became angry.
④ 情态动词的过去式+动词原形。 I could swim at the age of five.
四种句式的构成
①肯定句式“主语+动词过去式+其它”
例如:Jenny bought a skirt yesterday. 詹妮昨天买了一件短裙。
②否定句式“主语+didn’t+动词原形+其它”
例如:Jenny didn’t buy a skirt yesterday. 詹妮昨天没有买短裙。
③一般疑问句式“Did+主语+动词原形+其它”
例如:Did Jenny buy a skirt yesterday? 詹妮昨天买短裙了吗?
④特殊疑问句式“疑问词+did +主语+动词原形+其它”
例如:What did Jenny buy yesterday? 詹妮昨天买了什么?
一训练第一关:小小单词难不到我。
请写出下列动词的过去式。
want arrive enjoy shop
buy _ s
一般过去式、一般将来时 来自淘豆网m.daumloan.com转载请标明出处.
