Learning about Languageppt课件配套教案内容

The Second Period

Learning about Language

Teaching goals

1.

Target language

a. 重点词汇和短语

revolution

simplify

sum

solve

explore

totally

anyhow

finance

artificial

technology

intelligent

application

Web

reality

logically

b. 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

Enable students to learn the meaning and use of the key words. Enable students to learn the form, function and use of present perfect passive voice.

3. Learning ability goals

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

Teaching important and difficult points

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

Teaching methods

Induction and imitation.

Teaching aids

CAI Teaching procedures

Ask students to summarize the key information about the development of computers according to the given key words.

Step II Discovering useful words and expressions Activity 1. Find out these words or expressions.

Activity 2. Check their meanings in your dictionaries. Then complete the passage with the words.

Activity 3. Look at the phrases in bold in the story. What do they have in common? Step III Discovering useful structures

Let students find sentences in the present perfect passive voice in the text and then

analyze their form and function. (Activity 1 on page 21.) The sentences as follows: 1. 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 new applications have been found for me.

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

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

Let students study these sentences carefully and sum up the form of present

perfect passive voice tense. Elicit the structure: S + have/has + been + V-ed

Q: Why is the passive voice used here? When do we usually use passive voice? Explanation: The passive voice is used when the subject of a sentence is the person or thing affected by the action of the sentence. We particular use the passive voice when don’t know or aren’t bothered exactly who has done something.

Practice: Activity 2.

Change the sentences into the present perfect passive voice. Pay attention to the use of has/have. When do we use has and when do we use have? Conclusion: We use has when the recipient of the action is the third person single or single nouns. We use have when the recipient of the action is the first or second person or plural

nouns.

Practice: Write passive sentences in Present Perfect according to the words given. Show the following on the screen. 1 the postcard / send __________________________ 2 the pencils / count ___________________________ 3 the door / close _____________________________ 4 the beds / make _____________________________ 5 the mail / write _____________________________ 6 the trees / plant _____________________________ Answers:

1 The postcard has been sent.

2 The pencils have been counted.

3 The door has been closed.

4 The beds have been made.

5 The mail has been written.

6 The trees have been planted.

Activity 3.

1.

Read the poem. Underline the use of the present perfect passive voice. Then decide which things have been done well and which have been done badly. Guess what might have happened to the face, hair and shoes and what might have happened to the flowers, grass and paths. You can get cues from the examples.

2.

Write a similar poem following the rhythm and intonation. Share some poems to the class. Step IV Workbook Exercises Give students some time to finish USING WORDS AND EXPRESSIONS and

USING STRUCTURES in Workbook individually. If time is limited, leave them as

homework.