【正文】
形 do 做 learn學(xué)習(xí) 動詞過去式 did learnt they finish the book? did they decide to do? did they give Simon39。 paper紙 a paper spaceship 一個 紙質(zhì)的 宇宙飛船 finished gave made decided thanked was finish完成 give 給 make 制作 decide決定 thank謝謝 is 是 動詞 原形 動詞 過去式 規(guī)則動詞的過去式變化如下: 一般情況下,動詞詞尾加 ed , 如: watch watched playplayed 以不發(fā)音的 e 結(jié)尾動詞,動詞詞尾 加 d,如 : livelived hopehoped 以輔音字母 + y結(jié)尾的動詞, 把 y變?yōu)?i 再加 ed,如: studystudied carrycarried 以一個