外研版 (新标准)八年级下册Unit 3 Language in use精品ppt课件

设计说明

首先复习现在完成时态、一般现在时和一般过去时，然后带领学生学习这三种时态之间的区别；通过课本活动1-2练习三种时态的运用，通过活动3巩固重点词汇，通过活动4、5练习听力技能，通过活动6和Around the world练习学生阅读能力,最后通过Making a cartoon引导学生将所学知识与实践相结合进行运用，锻炼学生的综合能力。

教学目标

通过本单元的学习，让学生达成以下目标

1.知识目标：

（1）总结和巩固现在完成时、一般现在时和一般过去时的用法区别

（2）复习本模块单词、短语及知识点

（3）完成本单元习题

2.能力目标：

（1）能够阅读理解有关动画片的文章

（2）能够设计制作并运用正确的时态讲述自己的动画片

3.情感目标：

激发学生创新意识，鼓励学生设计出自己的动画片

重点难点

重点：总结和巩固现在完成时、一般现在时和一般过去时的用法区别

难点：阅读理解有关动画片的文章并能设计制作讲述自己的动画片

教学准备

PPT课件，活动4、5、6音频

授课时数

1课时

教学过程

Step 1 Revision

1  Let students complete the three sentences to review the three tenses.

1.He _______ (be)  popular for over eighty years.

2. Tintin _________(appear)  in China in the 1980s.

3. Snoopy ________ (live) in his own private world.

Answers：1.has been  2.appeared  3.lives

2  Lead the students to review the three tenses.

Ask them to take some notes.

(一）定义

He takes a walk in the park every morning.他每天早晨在公园里散步。

She was born in 1991. 她是在1991年出生的。

I have finished my homework. 我的作业做完了。

（二）标志词

He is often late for the meeting. 他常常开会迟到。

There was no supermarket in the small town six years ago.

这个小镇六年前没有超市。

I’ve known her for a long time.我已认识她很长时间了。

（三）句式结构

Step 2 Learning

1  Teach students to learn the differences between the three tenses.

现在完成时与一般现在时的区别

1. 用法不同

A: I eat breakfast every morning.

B: I have eaten breakfast this morning. 

Ａ句表示过去、现在、未来都要发生的事，这件事是一种习惯或反复。 Ｂ句是现在完成时，用于发生在过去的事但对现在仍有影响，或过去的行为一直持续到现在。Ｂ句的意思是：我今天早晨吃饭了，表明吃了早饭（可能现在还不饿）。

2. 时间状语不同

    一般现在时表示的是当前一段时间持续的动作或者存在的状态，所以在一般现在时中经常会有时间状语every day, on Sundays, often, sometimes 等词出现。

现在完成时中会有一些标志性词语：already, yet, ever, just, since+过去的时间点， for+时间段，so far, up to now, till now等。

现在完成时与一般过去时的区别

现在完成时和一般过去时所表示的动作都是发生在过去，所以在实际运用中很容易混淆二者的用法。现在我们就一起来看看现在完成时和一般过去时的区别。

1.侧重点不同

现在完成时和一般过去时所表示的动作都发生在过去， 但它们所强调的重点不同: 现在完成时侧重于对现在的影响； 而一般过去时侧重于某一动作发生在过去某个时间或某段时间，即现在完成时侧重于现在的结果，而一般过去时侧重于动作发生的时间。如:

I have seen the film.我看过这部电影。(现在我仍记得电影的内容)

I saw the film three days ago. 三天前我看了这部电影。

(强调是三天前，而不是别的什么时候看的电影)

Mr. Green has bought a new computer.格林先生买了一台新电脑。

 (着重点是格林先生现在有了一台新电脑)

Mr. Green bought a new computer yesterday.格林先生昨天买了一台新电脑。

(强调的是格林先生买新电脑的时间是昨天)

2. 时间状语不同

现在完成时常与already, yet, just, ever, never, before等副词以及“for+段时间” “since+过去时间/从句”等时间状语连用；而一般过去时则常与“一段时间+ago”， just now, yesterday, last week等表示过去时间的状语连用。如:

She has lived here since two years ago.她自两年前就住在这里了。

She lived here two years ago. 两年前她住在这里。

He has been in the League for three years. 他入团已经三年了。

Tom wrote a letter to his parents last night.昨晚汤姆给他的父母写了封信。

【注意】

句子中如有过去时的时间副词（如yesterday, last week, in 1960），不能使用现在完成时，要用过去时。如： 

Tom has written a letter to his parents last night.  （错）

Tom wrote a letter to his parents last night. （对）

常见的短暂性动词和延续性动词的对应表如下：

Step 3 Practice

1.   Ask the students to complete Activity 1 and check their answers.

Answers:(1)Have, ever read  (2) have never read  (3) Are 

(4) have been  (5) appeared  (6) works  (7) has  (8) do, have

2.   Ask the students to complete Activity 2 and check their answers.

  Answers: (1) didn’t like  (2) ate  (3) was watching  (4)looks 

(5) loses  (6)grow  (7) scored  (8)have loved

3.Ask the students to complete Activity 3.

4.Check the answers and let some students read the passage.

Answers: (1)laugh  (2)mess  (3) ugly  (4)private  (5)own  (6)create      (7) satisfy

Step 4 Listening

1.Let students look through the pictures and discuss in pairs and then number the pictures in the correct order.

2.Let students listen to the tape and check their answers.

Answers: a—4；b—2; c—3；d—1

3.Teach students some listening tips.

When you’re listening, do not stop paying attention when you hear a word you do not know. Keep listening. The word might not be important, or the speaker may say something to explain its meaning.

4.Let students listen to the tape again and answer the following questions.

(1)Why does Betty not think the cartoon is funny at first?

(2) Why does Tony think the cartoon is really clever?

Answers:(1)Because she does not understand it at first.

(2) Because the policeman could catch the man in the lift, but he doesn’t. They both just stand there, waiting for the lift to stop!

Step 5  Reading

1.   Ask the students to read the passage of Activity 6 by themselves and fill in the blank at the end of the passage.

Answers:1.humorous faces   2.came to life; smiled  3.jumped through a ring  4.make films    5.with sound   6.people of all ages 7.many more

2.Ask the students to read “Around the world” by themselves and learn about some classic American cartoons.

Step 6 Module task—Making a cartoon

1.Ask the students to talk about their favourite cartoons and decide on the kinds of cartoon hero they would like to create in groups.

2.Lead students to talk about how to develop the heroes according to the following aspects:

  What are they like?

What do they look like?

What do they do?

How will they win people’s hearts?

3.Ask students to decide who will write the story and who will do the drawings in the group.

4.Ask students to make their cartoon after class.

Step 7 Homework

1.Make your cartoons in groups.

2.Review what you have learned in this module and master them by heart.

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