牛津译林版八年级英语下册8B U1 知识点讲解和练习(附答案) .pdfVIP

8B Unit 1 Past and Present Welcome to the unit 预习热身 1. present n. _______ 2. just adv. ______________ 3. _______ n.过去 4. _______ conj. 自……以来 5. share …with … _______ 6. used to______________ 7. by underground_______ 8. _____________一小时前 9. - Eddie, have you seen my food? ___________________________________ - Yes. Ive just eaten it. ___________________________________________ 10. You used to share food with me! ___________________________________ 11. Well, there were always too many people on the bus, and it took a long time to wait for the next one. _____________________________________________________________________ 知识点讲解 1 ．- Eddie ，have you seen my food?埃迪，你看到我 的食物了吗？ - Yes. Ive just eaten it ．是的。我刚刚把它吃了。 思考：have you seen 与 Ive just eaten 用的是什么时态？ 讲解：have you seen 和 Ive just eat en 都用了现在完成时 现在完成时由“助动词 have/has ＋过去分词”构成，其中Ive 是 I have 的缩略形式， seen 是 see 的过去分词，eaten 是 eat 的过去分词。 例如：- Have you eaten your breakfast? 你吃过早饭了吗？ - Yes ，I have. 是的，我吃过了。 ( )- Would you like to go and see Avatar with me tonight? - Thank you very much, but I_______ it already. A. see B. will see C. have seen D. am seeing 2 ．Youve eaten my food? 你吃了我的食物? 思考：该句为什么句式？ 讲解：本句为陈述句，但句末用问号，表示疑问。这种问句常用于口语中，表示较弱 的疑问语气。 - You are fourteen years old? 你十四岁了？ - Yes ，I am ．是的。 ( ) - _______ - Yes. I can watch TV for half an hour then. A. What about doing your homework? B. Youve finished your homework? C. Do you finish your homework? D. Did you do your homework? 3 ．Because I was very hungry ．因为我很饿。 思考：because 的意思是“_______”。 讲解：because 意为“因为”，后跟原因状语从句，通常用来回答由why 引导的特殊 疑问句。 注意： because of 后面加名词短语 - Why were you late for school this morning? 今天早上你为什么上学迟到了？ - Because there was someth