haihongyuan.com
海量文库 文档专家
全站搜索:
您现在的位置:首页 > 初中教育 > 初中英语初中英语

现在完成时的被动语态结构和规则

发布时间:2014-03-03 19:22:55  

教学目标:

1.语言知识目标: 掌握现在完成时的被动语态结构和规则

2.语言技能目标:运用现在完成时的被动语态进行交流

3.情感态度:学生能自如地表达自己的思想,情感以及与人合作交流的能力。

4.学习策略:通过主动语态和被动语态的比较,以及现在完成时的应用培养学生的认知策略;引导学生对自己学习过程,学习困难等进行分析,培养学生的调控策略;鼓励学生运用现在完成时的被动语态,在情景中进行交流,培养学生的交际策略。

重点难点:

1.教学重点:现在完成时的被动语态结构和规则,主动语态和被动语态的转换。

2.教学难点:现在完成时的被动语态的应用,通过合作交流表达思想和情感。

课堂教学过程设计:

Step 1 Preparation(发现准备阶段)

(Before class, let Ss enjoy some pictures about specially-designed computers)

T: Now, I’d like you to make an interview with your partner. One is the reporter, and the other is Mr. / Miss Computer.

Write some key sentences on the blackboard:

(1) As the years have gone by, the computer has been made smaller and smaller.

(2) Since then, my family and I have been used by millions of people to deal with information and communicate with each other around the world by the Internet.

(3) I have truly been built to serve the human race since my birth. 设计说明:由记者采访导入新课,激发学习兴趣,呈现现在完成时的被动语态。

Step 2 Presentation(呈现体验阶段)

I.初步体验

T: Nowadays, computer has been used more often than ever before by the students. Then, what has it been used to do in our life? (Show some pictures)

Help the students to describe the pictures, using the present perfect passive voice.

S1: Computer has been used to chat with my friends.

S2: Computer has been used to send E-mails to my friends.

S3: Computer has been used to gather information.

??.

设计说明:计算机,高中生最感兴趣的话题之一。兴趣使学生积极大胆参与和教师的交流,在谈论计算机的用处时,学生通过has been used这一短语体验现在完成时的被动语态。

II. 呈现阶段

Together with the students,the teacher summarizes the use of the structure.

教师点拨语法特点并提醒重难点:

一. 被动语态的形式是be done,

二. 现在完成时经常与Since, for, yet, already, so far, by now, in the past few years, how long等词连用,

三. 助动词的选择have/has 要与主语一致。

III. 再次体验

Fill in the blanks, using correct tense and voice:

1.I don’t know how many days I have been given (give) to spend, but I do feel my hands are empty.

我不知道他们给了我多少日子,但我的手确乎是渐渐空虚了。-《匆匆》

2. Never mention rope in the house of a man who has been hanged. (hang) 不揭别人的短处。

3. The year that is drawing towards its close, has been filled (fill) with the blessings of fruitful fields and healthful skies.

林肯总统1863年感恩节贺辞

4. Peace has been preserved (preserve:维护)with all nations, order has been maintained, (maintain:维持)the laws have been respected (respect) and obeyed, and harmony has prevailed (流行,盛行 )everywhere. 林肯总统1863年感恩节贺辞

设计说明: 在发现和归纳的基础上,利用学生喜欢的经典句体验语法结构和功能,让学生发现语法术语不能单独表意,只有在具体的情境中,才能表情达意。

Step 3 Practice(实践阶段)

I. Game:

Task: Describe what has happened in the pictures (展示图片)

Requirements: 1. Use “have / has been done”;

2. “One person, one chance”---Everyone has just one chance.

设计说明: 在课堂中适时的运用游戏能刺激学生思维。游戏规则”One person, one chance”的设立,有效遏制了个别学生独霸课堂的现状。在游戏中体验语言,在游戏中运用语法,不仅加深了对所发现的语法知识的理解和掌握,而且体验到语言学习实际上是快乐的。

II. Choose the best answer:

1. Both my brother work at the power station that ___ in my hometown.

A. has set up B. has been set up C. was set

up D. is set up

2. ---_____ the sports meet will be put off.

A. I’ve been told B. I’ve told C. I’m

told D. I told

3. All the preparation for the task ____, and we’re ready to start.

A. completed B. complete C. had been

completed D. have been done

4. ---- How long ____ at this job? ---- Since 1990.

A. were you employed B. have you been employed

C. had you been employed D. will you be employed

5. When and where to go for the on-salary holiday ____ yet.

A. are not decided B. have not been decided

C. is not being decided D. has not been decided

III. Correct mistakes in the blog:

T: An article is posted in our blog, but there are some mistakes. Please correct them.

设计说明: 让学生在熟悉的博客上发现语法错误,能更好地检测学生知识掌握的程度,体现了学中用,用中学的原则,符合学生的认知规律。

Step4 Production (应用阶段)

T: I think something must be done to save dolphins. Besides, some problems about computer have arisen. Do you know any problems?

S1. Many of the students have been attracted by computer games, which have a great effect on their studies.

S2: A lot of diseases have been caused because of the computer. We spend too much time on computer.

S3: Some deadly computer programmers, like “worm” have been invented to make the computers turn off, which has caused great headaches for the computer users. …….

T: Great! Now, I’d like to give you a task.

Task:

Group work: choose one topic above to write an article on the problems caused by the computer in our blog. If you’d like, leave some messages..

Requirements:

1. Use at least four sentences with “the present perfect passive voice”.

2. Apply at least four new words and expressions we have learnt in this unit.

设计说明:让学生在博客上发表文章,在发现、体验中真正掌握语法知识,切合学生的生活经验和兴趣,使学生有话可谈,培养学生在习得语言的基础上真正使用语法的能力。古希腊的普罗塔戈说的好:“头脑不是要被填满的容器,而是一个需要点燃的火把。”

作业设计

Write the article down on your own exercise book and improve it. The requirements should be strictly followed.

设计说明:通过笔头落实,可以检测每位学生课堂掌握语法的情况,巩固所学,,同时也使得小组活动不流于形式,真正使每位学生参与交流与合作。

课后反思:

1.感觉课堂教学中较难掌握的是游戏这一环节,学生情绪之兴奋,思维之活跃大大超出我的意料,一副看似简单的图片,却能讲出很多不同的句子,而且学生强烈要求延长时间,多给他们造句的机会。虽然这能增加学生体验现在完成时被

动语态的机会,但在时间的把握上存在一个问题,在最后设计的任务活动中,觉得有匆匆过场的嫌疑。教学中,如何把握游戏这一关,还值得探讨。

2.学生不管是对现在完成时被动语态的操练还是应用,都出现了一些问题,如主谓不一致,忘记用过去分词或错用过去分词等,还有的学生不注意及物动词和不及物动词的用法,或根本不知道。

网站首页网站地图 站长统计
All rights reserved Powered by 海文库
copyright ©right 2010-2011。
文档资料库内容来自网络,如有侵犯请联系客服。zhit326@126.com