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所屬欄目：高中英語優質課視頻
視頻課題：人教版必修2Book2 Unit 3 Computers The Third Period Learning about language青海省優課
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高中英語人教版必修2Book2 Unit 3 Computers The Third Period Learning about language青海省優課
Book 2 Unit 3 Computers
The Third Period Learning about language
Teaching goals 1. Target language
a. Important words and phrases
revolution network simplify calculate mobile solve explore totally anyhow finance b. Important sentences
Over time I have been changed quite a lot.
First as a PC (personal computer) and then as a laptop, 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
Learn the present perfect passive voice 3. Learning ability goals
Let students learn how to use the present perfect passive Teaching important points
a. Students can read and master these new words b. Students can use these words fluently. Teaching difficult points
a. The use of the present perfect passive
b. Student can know how to change the sentence into the present perfect passive. Teaching methods
Teach words in real situations, corporation, discussion. Teaching aids A media
A blackboard.
Teaching procedures & ways Step I Revision
Check the words and phrases
T: To show some words on scream, give students two minutes to find the answer. I will spent three minutes to ask students answer the following questions: “revolution” It means complete change in ways of thinking, working; “network” It means connected computer system;”simplify” It means to make things easier; “calculate” means to find the answer using numbers; “mobile” means able to be moved easily from place to place; “solve” means to work out the answer to a problem; “explore” means to travel around an area to find out about it. “totally” means completely; “anyhow” means anyway; “finance” means activity of managing money.
T:I will spent five minutes in this part. Students may have some trouble in these words, just like “revolution” “calculate” “simplify”. I will pay more time on these words, and explain them again. Such as: reality. n. → real. adj.→ realize. vt. ; explore. vt. → explorer. n. → exploration. n; simplify. Vt. → simplification. n.→simple.adj.→simply.adv. Students must know about them that will be appeared in the final exam.
T: Now please open your books and turn to Page 20
First let’s learn about language. They’ve learnt the words in this unit to fill in the blanks. Complete the sentences with suitable words in correct forms.( This part need corporation, two people as a group to complete the sentences with suitable words. I will spend six minutes in this part. ) StepⅡ. Word study
This part is a consolidation of the words learnt in this unit. Ask the Ss to do the exercise independently. I will show so many words and exercises in the scream. I will spend twenty minutes in this part. StepⅢ. Grammar
The student will learn the use of the present perfect passive. First try to make clear to
the student what the present perfect passive is, with the help of the practice in Step III. Then give them some examples. At last get them to summarize the rules of the present perfect passive.
T: In this part, we are to learn the use of the present perfect passive. We will use more examples to show the present perfect passive.
概念：主動語態表示主語為動作的執行者；被動語態表示主語為動作的承受者。現在完成時的被動語態強調過去的動作對現在造成的影響或結果，但主語為動作的承受者，表示“……已經被……”。
如：The new school has been set up. 新學校已經建成了。
形式：
現在完成時的被動語態的肯定式為：have/ has +been +done。
如：The experiment has been done successfully. 這個實驗做得很成功。
現在完成時的被動語態的否定式為：have/ has +not +been +done。 如：Tom’s novel has not been published. 湯姆的小說還沒有被出版。
現在完成時的被動語態的一般疑問句需將have /has提到主語的前面。 如：Has his bike been repaired? 他的自行車修好了嗎?
現在完成時的被動語態的特殊疑問句為：疑問詞+have /has +been +done? 如：Who has been invited? 誰受到了邀請?
Step Ⅳ. Practice
1.主動：他已經收到了信。 He has received the letter already.
被動：他封信已經被他收到了。 The letter has been received by him already. 2.我們已經做了一個計劃。 We have made a plan.
一個計劃已經被我們做了。 A plan has been made by us. 鞏固練習
1. Paper money for over a thousand years. A. used B. has been used C. has used D. is using
2. Great changes, in my hometown and you can see a lot of factories . A. have been taken place; are being set up B. have taken place; have been set up C. are taken place; had been set up D. had taken place; will be set up
3. Come and sit down by the fire. Your hands cold. A. have been felt B. feel C. are felt D. have felt 4. The fire to the fifth floor. all the people ? A. has got; Have; been saved B. has been got; Have, saved C. has got; Do; save
D. has got; Have; saved
5. —We want to sit at the table near the window. —I’m sorry, but it already.
A. has taken B. took C. was taken D. has been taken
Now please turn to page twenty-one, let’s finish exercise two. Change the following sentences into the present perfect passive voice.
1. My friend has bought a new personal computer. 2. The shop has repaired my computer very quickly. 3. An unknown virus has just attacked my computer. 4. We have not solved the problem yet.
5. The company has given its computers away to a local school. 6. The scientists have developed a kind of intelligent robot.
Step V. Homework
1. Please finish the exercises three on page twenty.
2. Look at exercise three ,read the poem aloud, paying attention to the rhythm and intonation. Then write your own poem.
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