初中语法现在完成时态讲解及练习（无答案）

现在完成时态讲解及练习 一、现在完成时的构成 肯定句：主语+have/ has + done (过去分词)+其它 He has lived in Shenzhen for 4 years. 一般疑问句：Have/ Has +主语+ done (过去分词)+其它 Has he lived in Shenzhen for 4 years? 否定句: 主语+have/ has+ not + done (过去分词)+其它 He has not finished his homework. 过去分词的构成方法如下 : 1.一般情况下，直接在动词原形后面加 –ed. work---worked　answer---answered　obey---obeyed　want---wanted  2.以不发音的 -e 结尾的动词只加 –d.  Move---moved　hope---hoped  divide---divided  3.字尾是辅音+y的动词。则将y改i加ed. study---studied tidy---tidied satisfy---satisfied 4.以重读闭音节结尾的词，这些词的末尾只有一个辅音字母时，双写这个辅音字母，再加 –ed. stop---stopped　regret--- regretted  drop---dropped 不规则动词过去式与过去分词分类记忆表 一、AAA. （原形，过去式和过去分词一致） 1. 花费 cost cost cost 2. 割 cut cut cut 3. 伤害 hurt hurt hurt 4. 让 let let let 5. 放 put put put 6. 朗读 read read read 7. 设置 set set set 8. 打击，碰撞 hit hit hit 9. 关上门窗 shut shut shut 10. 让 let let let 二、ABB（过去式和过去分词一致） 1) 过去式、过去分词含有-ought 1. 带来 bring brought brought 2. 买 buy bought bought 3. 打架 fight fought fo