高中英語 B3 Unit 3 The world of Science 第3課時-using language 課件

1、2021年春季深圳市線上課程高一英語深圳市教育科學(xué)研究院教學(xué)教材：外研版高中英語新教材必修第三冊教學(xué)內(nèi)容：Unit 3 The world of Science第三課時：Using language： Present perfect passive執(zhí)教人：徐婭暉/深圳市寶安中學(xué)（集團）高中部March 22nd, 2021a. I guess you have been asked about the title of your book before.b. New inventions like 3D printers have been used to make replacement h

2、earts and bone parts. What has happened to “you” in sentence (a)?Group 1PeopleWho has used new inventions to make replacement hearts and bone parts in sentence (b) ?c I guess someone has asked you about the title of your book before.d People have used new inventions like 3D printers to make replacem

3、ent hearts and bone parts.a. I guess you have been asked about the title of your book before.b. New inventions like 3D printers have been used to make replacement hearts and bone parts. Compare them with the following sentences and answer the questions.present perfect active formpresent perfect pass

4、ive formGroup 1Group 2c I guess someone has asked you about the title of your book before.d People have used new inventions like 3D printers to make replacement hearts and bone parts.a. I guess you have been asked about the title of your book before.b. New inventions like 3D printers have been used

5、to make replacement hearts and bone parts. Why does the author choose to use the passive form instead of the active?present perfect active formpresent perfect passive formGroup 1Group 2To emphasize the object: “you” and “new inventions”.被動語態(tài)的使用情況：1. 不知道或者沒有必要說明動作的執(zhí)行者是誰； Such books have been written

6、for children. 2. 強調(diào)動作的承受者，而不是動作的執(zhí)行者； All the products have been tested.3. 動作的執(zhí)行者很模糊; The letter has been opened.4. 有時候為了禮貌的需要，避免說出動作的執(zhí)行者。 They have been told many times not to make noises.Now lets read more examples.How many books has J.K. Rowling written?J.K. Rowling has written seven books.Seven b

7、ooks have been written by Rowling.Workers have built the house since years ago.The house has been built by workers since years ago.The buildings have been destroyed in the earthquake.The earthquake has destroyed the buildings.A lot of trees have been planted in our country.Present perfect passive現(xiàn)在完

8、成時的被動語態(tài)內(nèi)容要點1. 概 念2. 構(gòu) 成3. 用 法4. 注 意have/has been done強調(diào)一個發(fā)生在過去的被動動作。表示動作已經(jīng)完成，對現(xiàn)在造成的影響或結(jié)果；主語為動作的承受者，與謂語動詞是被動關(guān)系。(1)The door has been locked.(2)These flowers have been watered, and you can go home.(3)Our classroom has been cleaned, so you neednt clean it now. So even the olive wreath (橄欖枝花環(huán)) has been r

9、eplaced!1.肯定式：have / has + been + done2.否定式：have / has + not + been + doneAn opinion is what someone believes is true but has not been proved. 構(gòu)成3.一般疑問句: 需將_提到主語的前面。(1) Has his bike been repaired? (2) Have they been notified about it?4. 特殊疑問句：提問主語：提問其他：have / has疑問詞 + have / has + been + done？(1) Wh

10、o has been invited? (2) How many buildings have been built in this school?特殊疑問詞 +一般疑問句？1. 強調(diào)動作或狀態(tài)始于過去，持續(xù)到現(xiàn)在，并對現(xiàn)在造成某種影響。常與for或since引導(dǎo)的時間狀語連用，或用于“how long.”句型中。(1) The machine has been repaired for two hours.(2) How long has the car been repaired?2. 用在時間和條件狀語從句中，表示將來某時刻已完成的動作。Well start as soon as the

11、 work has been finished.用法及注意事項3. 副詞的位置often, usually, always, never, hardly, seldom等副詞置于have / has和been中間。(1) Such a man has hardly been believed.(2) The machine has already been repaired.4.不及物動詞（詞組）如 happen, take place, die, appear 沒有被動語態(tài)，而不及物動詞加介詞或者副詞構(gòu)成的短語，相當(dāng)于及物動詞，可以用于被動語態(tài)。注意介詞和副詞不能丟掉。e.g. 孩子們這些年

12、被王奶奶照顧得很好。 The child has been taken good care of by Grandma Wang all these years.5. 非持續(xù)性動詞，如 come, go, start, begin, leave, arrive, reach, get, marry, die等現(xiàn)在完成時的被動語態(tài)不能和表示一段時間的狀語連用。若要表達相應(yīng)意思，需改動詞或時態(tài)。(1) The new car has been kept for a month.(buy)(2) How long has the meeting been on?(begin)但這類動詞的否定式可表示

13、動作的持續(xù)過程，可與since或for構(gòu)成的時間狀語連用。This dictionary has not been borrowed since last week.1. It is difficult to figure out a global population of polar bears as much of the range has been poorly studied. (2019全國卷語法填空) 由于大部分有關(guān)北極熊生活范圍的研究還很少, 所以很難統(tǒng)計出全球北極熊的數(shù)量。2. A 90-year-old has been awarded “Woman Of The Yea

14、r” for being Britains oldest full-time employee-still working 40 hours a week. (2019全國卷語法填空) 一位90歲老人因為是英國最年長的全職雇員而被評為“年度女性”。她仍然一周工作40個小時。直擊高考3. Wildlife has been greatly threatened in the modern age. (2019江蘇完型填空) 在現(xiàn)代, 野生動植物受到極大程度的威脅。4. (2017全國卷) Sarah _ _ (tell) that she could be Britains new superm

15、odel, earning a million dollars in the next year. has been told/was told Within the next 80 years, our lives may be changed beyond recognition by 3D printing. It has already affected many things in our lives, right down to the food we eat. For instance, some restaurants in London have served 3D-prin

16、ted hamburgers to customers. But perhaps the most significant success that people have achieved to date is in medicine. They have made human body parts, including a beating heart, with 3D printing technology. And it is not just humans who are benefiting- in Brazil, people have given a new 3D-printed

17、 shell to a turtle injured in a forest fire!Rewrite the underlined parts using the present perfect passive. P29 Within the next 80 years, our lives may be changed beyond recognition by 3D printing. Many things have already been affected in our lives, right down to the food we eat. For instance, 3D-p

18、rinted hamburgers have been served to customers some restaurants in London. But perhaps the most significant success that has been achieved to date is in medicine. Human body parts, including a beating heart, have been made with 3D printing technology. And it is not just humans who are benefiting- in Brazil, a new 3D-printed shell has been given to a turtle injured in a forest fire!Rewrite the underlined parts using the present perfect passive. P29Imagine you are Dr Moore. Look at the pictures an