人教版高中英语必修二教案：Unit+3+Computers.doc

1、The Second Period Learning about LanguageTeaching goals 教学目标1. Target language 目标语言a. 重点词汇和短语revolution network simplify sum mobile solve explore totally anyhow finance artificial technology intelligent application Web reality logicallyb. 重点句子As time had gone by, I have been made smaller and smaller

2、.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 he

3、lp 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. Lear

4、ning ability goals 学能目标By writing a poem using present perfect passivevoice, enable studentsto 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Personalization, Induction and i

5、mitation.Teaching aids教具准备Projector and tape recorder.Teaching procedures & ways教学过程与方式Step I RevisionCheckthe homework. Ask two students to read the passagethey have written.Their passage should be brief and include the key information or facts aboutht e development of computers.Step II Discovering

6、 useful words and expressionsT: Look at activity 1. These are the meanings of some words or expressions in the text we learned yesterday. Find out these words or expressions.Check the answers.U: Now look at the words in activity 2. Do you know their meanings? Check their meanings in your dictionarie

7、s. Then complete the passage with the words.Check the answers.V: Now activity 3. Look at the phrases in bold in the story. What do they have in common?S: They are all time phrases excep“tas a result”. They are used in the passage to indicate the development of the story. From them, we get a clear ti

8、meline of the story.T: Correct! Now use these phrases to create one of your own stories. The story can be a real one or an imaginary one.After they finish writing, let students exchange their stories and proofread for each other.Step III Discovering useful structuresLet students find sentences in th

9、e present perfect passive voice in the text and then analyze their form and function. (Activity 1 on page 21.)Students may find the following sentences: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 anythin

10、g 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 helpwith medical operations.5. I have even been put into space rockets and sent to explore the Moon and Mars. Then let students study these

11、 sentences carefully and sum up the form of present perfect passive voice tense.Elicit the structureS: + have/has + been + V-ed6. Why is the passive voice used here? When do we usually use passive voice?Ss：,T: The passive voice is used when the subject of a sentence is the person or thing affected b

12、y the action of the sentence. We particular use the passive voice when don t know or aren t bothered exactly who has done something.Now look at activity 2. Change the sentencesinto the present perfect passive voice. Pay attention to the use of has/have. When do we use has and when do we use have?Ss:

13、 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.After students finish, check the answers.T: Now write passive sentences in Present Perfect according to the words given.

14、 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 7 the money / spend 8 the room / book / not 9 the rent / pay / not 10 the people / inform / not Answers:1 The postcard has been sent.2 The pencils

15、 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.7 The money has been spent.8 The room has not been booked.9 The rent has not been paid.10 The people have not been informed.Then deal with activity 3.T: Read the poem. Un

16、derline the use of the present perfect passivevoice. Then decide which things have been done well and which have been done badly. Guesswhat might have happened to the face, hair and shoesand what might have happened to the flowers, grassand paths. You can get cues from the examples.After students fi

17、nish, check their work.Then get them to write a similar poem following the rhythm and intonation.T: Which words in the poem rhymes?Ss: washed, combed, cleaned, planted, cut, swept, again, again.T: Right! Now write your own poem with similar rhythm and intonation. After you finish, exchange yours wit

18、h your partner s and check for each other. Pay attention to the rhythm and grammar.Then, let some read their poems to the class.Step IV Workbook ExercisesGive students some time to finish USING WORDS AND EXPRESSIONS and USING STRUCTURES in Workbook individually. If time is limited, leave them as hom

19、ework.精美句子1、善思则能“从无字句处读书”。读沙漠，读出了它坦荡豪放的胸怀；读太阳，读出了它普照万物的无私；读春雨，读出了它润物无声的柔情。读大海，读出了它气势磅礴的豪情。读石灰，读出了它粉身碎骨不变色的清白。2、幸福幸福是“临行密密缝，意恐迟迟归”的牵挂；幸福是“春种一粒粟，秋收千颗子”的收获 . 幸福是“采菊东篱下，悠然见南山”的闲适；幸福是“奇闻共欣赏，疑义相与析”的愉悦。幸福是“随风潜入夜，润物细无声”的奉献；幸福是“夜来风雨声， 花落知多少”的恬淡。 幸福是 “零落成泥碾作尘， 只有香如故”的圣洁。 幸福是 “壮志饥餐胡虏肉，笑谈渴饮匈奴血”的豪壮。 幸福是 “先天下之忧而忧， 后天下之乐而乐”的胸怀。幸福是“人生自古谁无死，留取丹心照汗青”的气节。3、大自然的语言丰富多彩：从秋叶的飘零中，我们读出了季节的变换；从归雁