英语八年级下册Grammar图文课件ppt

《英语》（八年级下册）

Unit 7 International charities

Grammar

I. Teaching aims and learning objectives

By the end of the lesson, students should be able to:

1. grasp the structures of the passive voice in the simple present and past tenses;

2. understand the differences between the passive voice and active voice;

3. use the passive voice correctly.

II. Teaching contents

New words and phrases: hold, set, leaflet, including, hand out, set up

III. Focus of the lesson and predicted area of difficulty

Use the passive voice in the simple present and past tenses correctly.

IV. Teaching procedures

Step 1 Lead-in

T: What is it? Yes, iPhone. Who invented it? Jobs invented the iPhone. We can also say the iPhone was invented by Jobs.

T: What does ORBIS need? ORBIS needs more money. We can say more money is needed by ORBIS to help blind people.

【设计意图：从学生熟悉的主题导入本节课的目标语法项目——一般现在时和一般过去式的被动语态。】

Step 2 Presentation

T: Look at the picture. Do you know what the Class 1, Grade 8 students are doing?

S: The students in Class 1, Grade 8 will hold a charity show. They are preparing for it.

T: Yes. And the members from ORBIS, Oxfam, WWF and UNICEF also want to take part in the charity show.

1. Talk about ORBIS

T: Look at the pictures and talk about ORBIS. You can use the conversation as a model.

【设计意图：通过师生间有关单元话题的对话，自然地呈现目标语法结构。】

2. Talk about WWF

T: Look at the picture. What does it tell us?

S: Many trees are planted in spring. Many trees aren’t planted in winter.

T: How about this picture?

S: Lights were turned off to protect the Earth last year.

Lights weren’t turned on to protect the Earth last year.

【设计意图：在保护环境的语境中，引导学生仔细观察、思考并归纳出一般现在时和一般过去式的被动语态的肯定句及否定句的结构。】

3. Talk about UNICEF

T: UNICEF will send some cartoon books to the children in poor areas. The children like Tom and Jerry very much.

Can Tom catch Jerry? (active voice)     At last, Jerry was caught by Tom. (passive voice)

4. Talk about Oxfam

T: Oxfam will give some food to the people in need. The members of Oxfam made some bread.

Please put the active voice into the passive voice

【设计意图：通过简单的句子讲解主被动语态转换的问题。】

Step 3 Practice

1. Complete the sentences

  T: Turn to pages 99—100, and finish the exercises. You can write out the sentences using the active voice and then turn them into the passive voice.

【设计意图：让学生在简单的操练中巩固一般现在时和一般过去时的被动语态的肯定句结构。】

2. When to use the passive voice

(1) Use the passive voice to describe what happened to the people with eye problems.

The plane is used as a hospital.

His eye problem was cured two months ago.

The lives of the patients with eye problems are improved.

(2) Work in pairs and discuss when we use the passive voice.

a. It is obvious who performs the action.

b. We don’t know or don’t need to know who performs the action.

c. The action is more important than the person who performs the action.

【设计意图：让学生观察体会本单元课文中的被动句，感知被动语态的意义、功能及用途。】

3. Identify the passive voice in different tenses

4. Correct the sentences

5. Complete the conversation

6. Fill in the blanks

【设计意图：巩固练习由易到难，最后的语篇填空融阅读与语法训练为一体，有助于激发学生学习语法的热情。】

Step 4 Production

Look and say

T: UNICEF and Oxfam have done a lot for the people in need. Work in groups of four and choose one organization to describe its activities. Remember to use the passive voice. I’ll choose some groups to report to the class.

【设计意图：语言产出环节是本节课的高潮，符合课标提出的要求——做中学，学中做。】

V. Homework

Write about the charity activities of UNICEF or Oxfam using the passive voice.