20xx春外研版一起六下module3unit1itooksomephotos3-wenkub.com
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【正文】 如： 肯定句： He was in the park the day before yesterday. 否定句： → He was not in the park the day before yesterday. 肯定句： We were busy last week. 否定句： → We were not busy last week. 2．（行為動詞類）要在行為動詞的前面加助動詞 didn’t. 然后把動詞過去式改為動詞原形。 I was a student last year . 動詞過去式 的構(gòu)成 規(guī)則動詞 不規(guī)則動詞 規(guī)則動詞 過去式的構(gòu)成 一般在動詞末尾加 – ed looked look play start played started 結(jié)尾是 e 的動詞只加 d live hoped hope use lived used ， 先 雙寫 這個輔音字母，再加 —ed stop stopped plan planned 4. 以“輔音字母 +y”結(jié)尾的詞， 先變“ y”為“ i”再加 — ed study studied worry worried 不規(guī)則動詞 過去式的構(gòu)成 不規(guī)則動詞表 原形 過去式 am, is are do go have make get 原形 過去式 eat see run take was were did went had made got ate saw ran took play played use used plan planned study studied worry worried stop stopped take
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