2024年4月2日发(作者：)

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. I've 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. I've just eaten it．是的。我刚刚把它吃了。

思考：have you seen与I've just eaten用的是什么时态？

讲解：have you seen和I've 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I've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．You've 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