Learning about Language教学设计一等奖

Book2Unit3 Computers

Learning about Language Teaching aims: Knowledge goals:

Help the students to learn to use some useful words and expressions. Ability goals:

Enable the students to learn how to use the present perfect passive voice. Emotional goals:

1.Stimulate students’ interest in learning English. 2.Develop students’ spirits of cooperation and teamwork.

Teaching Important Point：

The use of the present perfect passive voice. Teaching Difficult Points：

How to master the usages of some important words and phrases and the present perfect passive voice. Teaching Methods：

1.Task-based learning. 2.Cooperative learning. 3.Explanation and practice. Teaching Aids：

1.A tape recorder. 2.A multimedia. Teaching Procedures：

Step 1 Revision T：Boys and girls，in last period we learned something about the history and development of computers.Now who would like to retell the text with the help of these figures? S1：Let me try.In 1642，a calculating machine was used in France.Then in 1922，the Analytical Machine was made by Charles Babbage.It could follow instructions from cards with holes.In 1936，Alan Turing，the real father of computers，wrote a book to describe how computers

could be made to work and built a “universal machine”

to solve any mathematical problem.Later，people discovered the computer had “artificial intelligence”.In the 1960s，the computer got his new transistors.Its size was totally changes at that time.And in the early 1960s，the first family of computers were connected to each other.In 1970s，computers have brought into people’s homes.Now computers have been used by billions of people to deal with information and communicate with each other around the world by the Internet. T：Congratulations!You’ve done very well.Now try to do the same to your partners，OK! Step 2 Words and Expressions Task 1 T：Please turn to Page 20 and finish Discovering useful words and expressions.At first，look at Ex.1.From the reading passage，find the words and expressions with the following meanings.Now，ten students will be asked to give the words.Who can?Volunteers! Check the answers together. Task 2 T：Well done.Now please look at Ex 2. and complete the passage with some of the words above.Pay attention to the use and the forms of those words. Task 3 T：Please finish Ex.3.Look at the sentences on Page 20.Tick the right word.Then some of you will be asked to read the sentences one by one. Step 3 Discovering structures 1.Look at the following sentence, paying attention to the underlined part. Examples in the present perfect passive voice from the reading passage. 1.First as a PC (personal computer) and then as a laptop, I have been used in offices and homes since the 1970s. 2. Over time my memory has developed so much that, like an elephant, I never forget anything I have been told.

3. Since the 1970s many applications have been found for me. 4. …

2. Change the following sentences into the present perfect passive voice.

1. A new personal computer has been bought by my friend.

2. My computer has been repaired by the shop very quickly. 3. My computer has just been attacked by an unknown virus. 4. The problem have not been solved by us yet. 5. The computers has been given away to a local school by the company. 6. A kind of intelligent robot has been developed by the scientists. Step4 Grammar—The Present Perfect

现在完成时的被动语态表示动作发生在过去, 到现在已经完成或对现在仍有影响, 其构成是: have/has been + done。如：

1. The dirty clothes have been washed.

脏衣服都已经洗了。

2. The plan has been studied by the experts for three times. 这项计划已经由专家研究过三次了。

3. The child has been taken care of by Grandma Wang all these years.

这些年来, 这个小孩一直由王奶奶照料。

现在完成时被动态：

have / has + been + 动词过去分词

现在完成进行时：

have / has + been + 动词现在分词

它们的构成的区别在最后的动词上, 被动态接的是过去分词形式, 现在完成进行时接的是现在1. 主语是行为动作的承受者。如：

The Temple of Zhang Fei has been rebuilt.

张飞庙已经过重建。

分词形式。

2. 说话时已经完成的动作或出现的结果。如:

The door has been locked.

门已经被锁上了。

3. 动作或状态始于过去, 持续到现在, 并可能

持续下去。如：

He has been told about it for many times.

有人告诉他这事很多次了。

(可能还会有人告诉他)

4. 用在时间和条件状语从句中, 表示将来某时已完成的动作。如：

We’ll start as soon as the work has been finished.

工作一完成我们就立即动身。

注意：

1.副词的位置

often, usually, always, never, hardly, seldom等副词置于have/has和been中间。

如: [误] Such a man has been hardly believed.

[正] Such a man has hardly been believed. 2.

并不是所有动词都有被动语态

1) happen, take place, break out, belong to, cost, last等不及物动词或词组无被动语态。如：

[误] Great changes have been taken place in China since 1978.

[正] Great changes have taken place in China since 1978. 2) open, break, drop等不强调动作发出者时常用主动语态。如：

[误] The door has been opened of itself.

[正] The door has opened of itself. 3. 短语动词不可分割或省略其中的介词或副词。如：

The SARS patients have been taken good care of. 4. 一些特殊动词, 如borrow, finish, begin, buy, start, return, marry, open, join等

构成的现在完成时的被动语态不能与表示一段时间的状语连用。若要表达

相应的意思, 则需改换动词或时态。如：

My brother has had(不能用has bought) this bike for almost four years. How long has this book been bought? How long ago was this book bought? 句型：

1. 现在完成时被动语态肯定句

主语+has/ have been +P.P.+... (P.P.=动词的过去分词形式) Her motorbike has been stolen. 她的摩托车被盗了。

All the offices have been linked by computer.

所有的售票处由计算机联网工作。

2. 现在完成时被动语态否定句

主语+has/ have +not+ been+ P.P.+... The task has not been finished yet. 任务尚未完成。

Many skilled workers have not been trained in the company. 这家公司并没有培养多少熟练工人。

3. 现在完成时被动语态一般疑问句

Has he(she, it,单数名词)+been+P.P.+...? Has a new computer been bought? 买了一台新电脑吗? Have they been sent abroad to study English? 他们已经被派往国外学英语了吗? 4. 现在完成时被动语态特殊疑问句

疑问词+have (has)+主语+been+ P.P.+...? What has been bought by Tom? 汤姆已经买了什么东西? Who have been helped by the new computer? 谁已经得到这种新计算机的帮助? How many buildings have been built in

this school?这所学校已经建造了多少座大楼?

Where has the car been repaired? 这辆小汽车已经在哪里修理好了?

Step5 Consolidation 1. First as a PC and then as a laptop, I _have been used

(use) in offices and

homes since the 1970s.

2. Over time my memory has developed (develop) so much that, like an elephant,

I never forget anything I have been told(told). 3. Since the 1970s many new applications have been found (find) for me.

4. I have also been put(put) into robots and used to make mobile phones

as well as help (help) with medical operations.

5. I have been put(put) into space rockets and sent to explore the Moon and Mars.

Step 6 Enjoy a poem Step 7 Homework

Try to remember the grammar rules and do exercises 1, 2 and 3 on page 21.