山东省宁阳县第二十五中学八年级英语下册《Unit6 How long have you beencollecting shells（1a2c）》学案（无答案） 人教新目标版.doc

山东省宁阳县第二十五中学八年级英语下册unit6 how long have you beencollecting shells（1a-2c）学案（无答案） 人教新目标版课题名称unit 6 how long have you been collecting shells? (1a-2c)课时共5课时授课班级第1课时总课时28教学重点学会how long have you been doing sth ?教学难点the pastperfect tense的使用课前准备the learning papers, the ppt, the listening materials, the notes学 案一 快乐预习（一）学习方式：按要求自主完成下列内容（二）预习内容：1.朗读并识记44 45页的生词及短语 2.翻译44 45页的句子3.找出1a-2c中的含现在完成进行时的句子，并进行比较总结主句和从句的时态_（三）预习检测 英汉互译1. collect shells 2. the skating marathon 3. 昨晚 4. a pair of skates 5. 多久 6.since nine oclock 7. 整整5个小时 8. since he was ten years old【预习质疑】写出预习中发现的问题_学习目标：学会使用if引导的条件状语从句二合作探究 （一）阳光展示：组内交流课前自主学习内容 （二）导学点拨 现在完成进行时 构成：由“have /has been +现在分词”构成。 用法：表示从过去某个时候开始一直延续到现在的动作。强调现在依然在进行，并还可能继续延续下去。如： the chinese have been making paper for two thousand years. 中国人造纸有2000年了。(2000年前中国人开始造纸，现在中国人还在造纸) 注：有的动词用现在完成时或现在完成进行时没什么差别。如： weve been living here since 1 990. weve lived here since 1990. 从1990年起我们就在这里住了。 但有些静态动词只能用于现在完成时，一般不能用于完成进行时。如： ive known him for many years. 我认识他有许多年了。（三）针对性练习 用since和for填空 1._ two years 2._ two years ago 3._last week 4._ 1999 5._ yesterday 6._4 oclock 7. _ 4 hours 8._ an hour ago 9._ we were children 10. _ lunch time 11._ she left here 12. he has lived in nanjing _ the year before last. 13. ive known him _ we were children. 14. our teacher has studied japanese _ three years. 15. she has been away from the city _ about ten years. 16. its about ten years _ she left the city现在完成进行时构成：由“have /has been +现在分词”构成。 用法：表示从过去某个时候开始一直延续到现在的动作。强调现在依然在进行，并还可能继续延续下去。如：the chinese have been making paper for two thousand years. 中国人造纸有2000年了。(2000年前中国人开始造纸，现在中国人还在造纸) 注：有的动词用现在完成时或现在完成进行时没什么差别。如： weve been living here since 1 990. weve lived here since 1990. 从1990年起我们就在这里住了。 但有些静态动词只能用于现在完成时，一般不能用于完成进行时。如： ive known him for many years. 我认识他有许多年了。 三：拓展提高1.完成1b, 2a, 2b听力 2.完成1a连线并进行对话 3. 2c pairwork make conversations 四 感恩达标用过去时或现在完成时填空： 1. “_ you _ (have) lunch?” “yes.” “when _ you _ (have) it?” “i _ (have) it at 12:00.” 2. “_ you _ (write) a letter to your aunt yet?”“yes, i _. i _ (write) one last week.” 3. “_ he _ (finish) his homework?” “not yet.” 4. “_ they ever _ (be) abroad?” “yes, just once.” 5. your father _ just _ (finish) his work. 6. your father _ (finish) his work just now. 7. last term i _ (learn) many english words. 8. they _ (not read) the interesting books yet. 9. he _ never _ (go) to the science museum. 10. _ you ever _ (dri