Learning about Languageppt课件配套教案内容

课题：Unit 3

Computers

Learning about language---The present perfect passive voice

设计教师：李娜娜

工作单位：广平县第一中学

联系电话：

15833070917

Unit 3 Computers

The present perfect passive voice Teaching goals 教学目标

1. Target language 目标语言

重点句子

As time had gone by, I have been made smaller and smaller.

I have been used in offices and homes since the 1970s.

Over time my memory has developed so much that, like an elephant, I never forget anything I have been told! Since the 1970s many new applications have been found for me.

I have also been put into robots and used to make mobile phones as well as help with medical operations.

I have even been put into space rockets and sent to explore the Moon and Mars.

2. Ability goals 能力目标

Enable students to learn the meanings and use of some key words in the reading passage. Enable students to learn the form and function of present perfect passive voice.

3. Learning ability goals 学能目标

By writing a poem using present perfect passive voice, enable students to use the structure freely and creatively.

Teaching important and difficult points 教学重难点

How to change the sentences into the present perfect passive voice.

Teaching methods 教学方法

Group-work and explanation.

Teaching aids 教具准备

Projector

Teaching procedures & ways 教学过程与方式

Step 1:

Lead in. A game,reciting between girls and boys.

Step 2:

To pick out more than two sentences in the present perfect passive voice from the reading passage﹙Group works, then give marks.﹚

Step 3: Change the following sentences into the present perfect passive voice. ﹙Group works, then give marks.﹚

My friend has bought a new personal computer.

We have not solved the problem yet. The scientists have developed a kind of intelligent robot. Step 4: The present perfect passive voice.

1.概念：它所表达的是：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，主语是行为动作的承受者。

Our classroom has been cleaned. You needn’t clean it now.

2.结构：have/has been + done

The dirty clothes have been washed. 3.意义：

⑴一个是表示动作已经完成，强调对现在造成的影响或结果，经常与一些副词连用如already, ever, never, recently, lately, just, yet等，通常把这些副词放在助动词have或has的后面，有时候也可以放在句末。

Tom’s novel has not been published yet. ⑵表示一直持续到现在的动作或状态，经常与for a time, since, how long, so far等表示一段时间状语连用。

The child has been taken care of by grandma all these years. 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。

Such a man has been hardly believed.

Such a man has hardly been believed. 2. 并不是所有动词都有被动语态

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

Great changes have been taken place in China since 1978.

Great changes have taken place in China since 1978. 3. 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。

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? √

Step 5: discussion:

To give students 2minutes to change sentences in the present perfect

passive voice, and then write down on the blackboard. ﹙summarise, and give marks.﹚

1.

They have finished the construction of the new railway lines by now. _______________________________________________________________ 2. We have built a new library and a gymnasium in our school this year. _______________________________________________________________ 3. The car factory has produced a great many fine cars since the technological revolution _______________________________________________________________ 4. They have made a plan to help the poor children in the poor area. _______________________________________________________________ 5. The government has spent a lot of money on the Hope Project. _______________________________________________________________

Step 6: Underline the use of the present perfect voice in the following poem. Fill in the chart below.﹝Read the poem together﹞To look at the PPT.

Step 7: Assignment. To complete the exercises on the paper. Reconsider and teaching﹝教学反思﹞

This class is good as a whole. I used many group works to let my students discuss with each other about the present perfect passive voice. My students have learnt about the present perfect passive voice through this class. When I dealt with teaching materials, the concept of new curriculum reform is included. To

thrill students′interests, I adopted group works. What′s more, I present a poem about the present perfect passive voice, then give students several minutes to imitate the poem. In short, this class is wonderful.