新外研版高中英語必修3：Unit3-The-world-of-science-Period3-課件

1、Unit 3 The world of sciencePeriod 3Using language語法精析課現(xiàn)在完成時的被動語態(tài)【體驗悟】閱讀下面課文原句, 回答以下問題。原句1This evening, Ill be talking to Dr. Richard Fairhurst, whose new book The New Age of Invention has just been published. 原句2I guess you have been asked about the title of your book before. 原句3New inventions like

2、3D printers have been used to make replacement hearts and bone parts. 【生成得】現(xiàn)在完成時的被動語態(tài)基本構(gòu)成have/ has +been+_的過去分詞表達的意義說話的時候_的動作或出現(xiàn)的結(jié)果, 主語是行為動作的_。當(dāng)主語為第三人稱單數(shù)的時候用_, 其他情況用_。及物動詞已經(jīng)完成承受者hashave【研學(xué)析】. 現(xiàn)在完成時的被動語態(tài)的形式1. 現(xiàn)在完成時的被動語態(tài)的肯定式為: have/ has +been +done。The experiment has been done successfully. 這個實驗做得很成功。

3、 2. 現(xiàn)在完成時的被動語態(tài)的否定式為: have/ has +not +been +done。The important project has not been finished until now. 那項重要的項目直到現(xiàn)在還沒有完成。3. 現(xiàn)在完成時的被動語態(tài)的一般疑問句需將have /has提到主語的前面。Has his bike been repaired? 他的自行車修好了嗎? 4. 現(xiàn)在完成時的被動語態(tài)的特殊疑問句為: 疑問詞+have /has +been +done? Who has been invited? 誰受到了邀請? 【內(nèi)化用】This book _many lan

4、guages. 這本書已被譯為多國語言。These flowers _, so you can go home. 這些花已經(jīng)被澆過水了, 你可以回家了。His bikes _. 他的自行車已經(jīng)都賣完了。has been translated intohave been wateredhave been sold out. 現(xiàn)在完成時的被動語態(tài)的用法1. 表示動作已經(jīng)完成, 強調(diào)對現(xiàn)在造成的影響或結(jié)果, 經(jīng)常與一些副詞連用, 如already, ever, never, recently, lately, just, yet等, 通常把這些副詞放在助動詞have或has的后面, 有時候也可以放在

5、句末。Toms novel has not been published yet. 湯姆的小說還沒有出版。2. 表示一直持續(xù)到現(xiàn)在的動作或狀態(tài), 經(jīng)常與for a time, since, how long, so far等表示一段時間的時間狀語連用。The child has been taken care of by Grandma all these years. 這些年來, 孩子一直由奶奶照看。The friendly relations and cooperation between our two countries have been enhanced in the past few years. 我們兩國之間的友好合作關(guān)系在近幾年得到了加強。【內(nèi)化用】 語法填空Enough _(say)here on this question. Many of the worlds greatest cities _(build)on the banks of rivers. No books _(buy)since last month. has been saidhave been builthave been bought【常溫故勤總結(jié)】現(xiàn)在完成時的被動語態(tài)的用法1. 表示被動的動