Unit 10I’ve had this bike for three years.Section A Grammar FocusBy Jin XuedongFrom Lantian Middle School in LuzhouTranslate the following sentences:1. 爱丽丝已经看完《小妇人》了。2. 我吃过午饭了，我是半小时以前吃的。3. 电影已经开始十分钟了。4. 你去过新加坡吗？是的，我去过两次。5. 他从五岁起就开始学习弹钢。 Alice has already finished reading Little Women.I have had lunch. I had it half an hour ago.The film has been on for ten minutes.Have you ever been to Singapore? Yes, I’ve been there twice.He has learned to play the piano since he was five. 现在完成时(Present perfect tense)：结构： 主语+ have / has + 动词的过去分词v.pp一般疑问句： Have / Has … ? Yes, I have. No, I haven’t. Yes, she has. No, she hasn’t. 否定句：主语 + haven’t/ hasn’t + v. ppRevision 现在完成时的用法一：表示过去发生或已经完成的某一动作对现在造成的影响或结果。与already, never, ever, just, yet, before连用。我已经看完《爱丽丝漫游仙境》了。I have already read Alice in Wonderland.他参观过长城了。He has visited the Great Wall.劳拉以前骑过马。Laura has ridden a horse before.我从来没看到过这么漂亮的地。I have never seen such a beautiful place.现在完成时的用法二：2. 表示从过去开始且一直延续到现在的动作或保存的状态。与for或since连用。for +（动作或状态延续的）时since +（动作或状态开始的）起点肯定句中只能用延续性动词，否定句中可以用非延续性动词。我们学习英语两年了。We have studied En |
