牛津译林版八年级下册Unit 3 Online toursGrammar学案设计

Unit 3  Online tours

Grammar

【学习目标】

了解一般过去时和现在完成时的区别。

2.  能组织含有一般过去时和现在完成时的句子。

【导学过程】

一、自主预习（3分钟，正确读音，书写工整）

1．梦想······ _____________________   2. 爬黄山 _______________________

3. 通过在线旅游 _______________     4. 学游泳______________________

5. 梦想着环游世界_________________  6. 写一封电子邮件给我的朋友___________

二、课堂探究

Step1  Lead in

Show some pictures and read these sentences

Step2  Presentation

simple past tense 一般过去时

present perfect tense 现在完成时

meanings定义          Forms   构成

keywords关键词        Uses     用法

We use the simple past tense to tell what happened in the past.

   Daniel went to Beijing two years ago.                                                                      We use the present perfect tense to talk about an action that started in the past and continued to the present.

Daniel has lived in Beijing for two years.

We use the simple past tense to tell what happened in the past.

Daniel bought a new computer last month.

We use the present perfect tense to talk about the result of an action.  It might happen just now or some time ago.

Daniel has bought a new computer.   (Daniel has a new computer now.)

We use the simple past tense to tell what happened in the past.

Mr Wu visited Canada in 2010 and 2011.

We use the present perfect tense to tell how many times an action happened till now.

Mr Wu has been to Canada twice.

Step3 Exercises

Finish part A and check the answers

Which tense can we use according to the time expressions?

Show the time expressions (标志词)

Finish Part B and check the answers

Finish Part C and check the answers

Step4 Practise

Make a new dialogue

A: Have you ever been to …?

B: Yes, I have …

A: When and where did …?

B: …

A: How long did you stay there …?

B: …

A: How many times …?

B: …

A: …is a good place for shopping. What did you buy  there?

B: I …

Finish Part D and check the answers

Step5 Consolidate

Step6 Homework

三、当堂反馈

一）、根据句意用所给的汉语或单词的适当形式填空。

1. Mr Chen and his family ________________ (live) in Huai’an since 2009.

2. We ______ (have) this computer for 3 years. We ______ (buy) it on Suning.com two years ago.

3. Mr Green ________(go) to Beijing already. He ________ (leave) the day before yesterday.

4. I ______never_____(see) this young man. But I______(hear) much about him when I was in Shanghai.

5. Kitty _________(not read) the book before. She wants to read it carefully now.

.

答案：

Grammar

一、自主预习

1.dream of   2.climb Mount Huang  3.by taking an online tour  4.learn to swim 5.dream of travelling the world  6.Write an email to my friends

三、当堂反馈

1.have lived  2.have had, bought  3.has gone ,left  4.have seen ,heard 5.hasn’t read