歡迎來到裝配圖網(wǎng)! | 幫助中心 裝配圖網(wǎng)zhuangpeitu.com!
裝配圖網(wǎng)
ImageVerifierCode 換一換
首頁 裝配圖網(wǎng) > 資源分類 > PPT文檔下載  

九年級英語上冊 Unit 2 Lesson3 Bell and His Telephone課件1 上海新世紀(jì)版

  • 資源ID:58275627       資源大?。?span id="x213gku" class="font-tahoma">2.62MB        全文頁數(shù):31頁
  • 資源格式: PPT        下載積分:10積分
快捷下載 游客一鍵下載
會員登錄下載
微信登錄下載
三方登錄下載: 微信開放平臺登錄 支付寶登錄   QQ登錄   微博登錄  
二維碼
微信掃一掃登錄
下載資源需要10積分
郵箱/手機:
溫馨提示:
用戶名和密碼都是您填寫的郵箱或者手機號,方便查詢和重復(fù)下載(系統(tǒng)自動生成)
支付方式: 支付寶    微信支付   
驗證碼:   換一換

 
賬號:
密碼:
驗證碼:   換一換
  忘記密碼?
    
友情提示
2、PDF文件下載后,可能會被瀏覽器默認打開,此種情況可以點擊瀏覽器菜單,保存網(wǎng)頁到桌面,就可以正常下載了。
3、本站不支持迅雷下載,請使用電腦自帶的IE瀏覽器,或者360瀏覽器、谷歌瀏覽器下載即可。
4、本站資源下載后的文檔和圖紙-無水印,預(yù)覽文檔經(jīng)過壓縮,下載后原文更清晰。
5、試題試卷類文檔,如果標(biāo)題沒有明確說明有答案則都視為沒有答案,請知曉。

九年級英語上冊 Unit 2 Lesson3 Bell and His Telephone課件1 上海新世紀(jì)版

Unit 2 lesson3 Bell and His TelephoneTHE ANSWERS ARE:1.electrical 電力的2.keen desire 強烈的愿望3.settle (in )定居4.citizen 居民Do you know who he is ?BELL AND HIS TELEPHONE 電話的發(fā)明家是英國人亞歷山大貝爾。 貝爾出生在英國一個聲學(xué)世家,后移居美國。在波士頓曾開辦過增益聾啞人教師的學(xué)校。由于職業(yè)上的原因,他研究過聽和說的生理功能。后受聘為波士頓大學(xué)聲音生理學(xué)教授,1873年,他辭去教授職務(wù),開始專心研制電話。 要研制成電話,先要把聲音信號變成電信號,再把電信號變成聲信號,在貝爾之前,已經(jīng)有不少人在研究這個問題。1875年貝爾在工作中看到電報機中應(yīng)用了能夠把電信號和機械運動互相轉(zhuǎn)換的電磁鐵,這使他受到了啟發(fā)。貝爾開始設(shè)計電磁式電話。他最初把音叉放在帶鐵芯的線圈前,音叉振動引起鐵芯相應(yīng)運動,產(chǎn)生感應(yīng)電流,電流信號傳到導(dǎo)線另一頭經(jīng)過轉(zhuǎn)換,變成聲信號,隨后,貝爾又把音叉換成能夠隨著聲音振動的金屬片,把鐵芯改作磁棒,經(jīng)過反復(fù)實驗,制成了實用的電話裝置。1876年,貝爾又獲得了美國的電話專利,他不僅發(fā)明了電話,而且建起了世界上第一家電話公司。 1.Do you know who invented the telephone? 2. why did he have a keen desire to help the deaf 3.What has his invention brought us? 4.What has the “electrical speech machine” paved the way for?Answer the following questions after read the text!1.be interested in doing2.Train訓(xùn)練 train sb to do sth 1)We must train them to think independently. 2)Elephants can be trained to do a lot of things, such as carrying people, moving heavy things, and even entertaining tourists. 3.Public speaking 演說,演說技巧open to the public be open to the publicPublic: adj. 公眾的 n.公眾,公共場所in public當(dāng)眾,公開地;公然give to the public =give to the world出版,發(fā)表 go public: 把隱私(或秘密)公諸于眾1)Most people are against smoking in public places 2)For the benefit of the public, do not litter Lesson notes 4.the deaf (the+形容詞,過去分詞-泛指一類人或物) 1)We must look after the aged 2)The duty of a nurse is to take good care of the sick 3)The rich are not always happy. 4)He devoted his life to helping the disabled the wounded/ the unknown/the blind/the poor 5.keen 強烈的,熱衷的,渴望的 be keen on 熱衷于 have a keen desire 有強烈的愿望1)He has a keen interest in gardening 2)he is keen on collecting stamps3)The children always has a keen desire to learn 6.For conj.因為;由于的緣故Lesson notes 7.With hope for 帶著的期望 1)With hope for a better life, many farmers come to work in cities 2)With hope for better education , he entered Fudan University.8.settle in Vt./Vi 定居, 移民于 1)Some foreigners settled in America and established their business there. 2) Mr. white settled his family in shanghai last year 3) I must settle all my affairs before leaving. 9.lead to lead sb to do sth Vt./Vi 引導(dǎo), 導(dǎo)致 1)His interest in painting led him to become a painter later 2) It could lead to infection and other problems. 3) Success often leads to arrogance, and arrogance to failure. Lesson notes because, since, as, for表示原因的用法區(qū)別關(guān)于 because:語氣最強,表示直接原因,可用于回答 why 提出的問題、引導(dǎo)表語從句、用于強調(diào)句等,而其余三者均不行:1)“Why didnt he come?” “Because he was ill.” 2)My stomach hurts because I have eaten too many apples. 3)Thats because you cant appreciate music. 4)It is because he is honest that I like him. 關(guān)于 since 與 as: 兩者所表示的原因都是人們已知的,即對已知事實提供理由,而不是表示直接原因。since 比 as 語氣稍強,且比 as 略為正式,它們引導(dǎo)的從句通常放在主句之前,有時也放在主句之后:1)As you werent there, I left a message. 2)Since you are wrong, you should apologize. since 可用于省略句,而其他三者不行:1)Since so, I have nothing to say. 既然如此,我無話可說。Grammar Grammar 關(guān)于 for:是并列連詞,其余三者為從屬連詞 表原因時提供補充說明,for 分句應(yīng)后置,有時可與because替換 還可表示對前面內(nèi)容的解釋或推斷比較,不可與Because替換:1)The ground is wet, for (=because) it rained last night. 2)It must have rained last night, for the ground is wet this morning. 昨晚一定下過雨,你看今天早上地面是濕的。 (此句不能用 because 代 for)Excises _you are ill, Ill go aloneThe days breaks, _ the birds are singing.Someone in the house must be ill, _a doctor has just come out.He is absent today _ he is ill_it is snowing, we shall not got to the park.THE ANSWERS ARE: Since For For Because As AFTER READING THE TEXT, YOU CAN CHOOSE EITHER TASK TO DO.After reading the text, you can choose either task to do.THEN SHOW YOUR ANSWERS T T T T T T T T work 2.source 3.apply for 4.send 5.mobile phone 6.typeHomework for today 用60-70個單詞,寫寫常規(guī)電話,手機和電子郵件的優(yōu)勢和劣勢,可以參考我們的那篇reading

注意事項

本文(九年級英語上冊 Unit 2 Lesson3 Bell and His Telephone課件1 上海新世紀(jì)版)為本站會員(痛***)主動上傳,裝配圖網(wǎng)僅提供信息存儲空間,僅對用戶上傳內(nèi)容的表現(xiàn)方式做保護處理,對上載內(nèi)容本身不做任何修改或編輯。 若此文所含內(nèi)容侵犯了您的版權(quán)或隱私,請立即通知裝配圖網(wǎng)(點擊聯(lián)系客服),我們立即給予刪除!

溫馨提示:如果因為網(wǎng)速或其他原因下載失敗請重新下載,重復(fù)下載不扣分。




關(guān)于我們 - 網(wǎng)站聲明 - 網(wǎng)站地圖 - 資源地圖 - 友情鏈接 - 網(wǎng)站客服 - 聯(lián)系我們

copyright@ 2023-2025  zhuangpeitu.com 裝配圖網(wǎng)版權(quán)所有   聯(lián)系電話:18123376007

備案號:ICP2024067431-1 川公網(wǎng)安備51140202000466號


本站為文檔C2C交易模式,即用戶上傳的文檔直接被用戶下載,本站只是中間服務(wù)平臺,本站所有文檔下載所得的收益歸上傳人(含作者)所有。裝配圖網(wǎng)僅提供信息存儲空間,僅對用戶上傳內(nèi)容的表現(xiàn)方式做保護處理,對上載內(nèi)容本身不做任何修改或編輯。若文檔所含內(nèi)容侵犯了您的版權(quán)或隱私,請立即通知裝配圖網(wǎng),我們立即給予刪除!