英語拓展模塊 課件 U1 A Small Change Can Solve the Problems of Many_第1頁
英語拓展模塊 課件 U1 A Small Change Can Solve the Problems of Many_第2頁
英語拓展模塊 課件 U1 A Small Change Can Solve the Problems of Many_第3頁
英語拓展模塊 課件 U1 A Small Change Can Solve the Problems of Many_第4頁
英語拓展模塊 課件 U1 A Small Change Can Solve the Problems of Many_第5頁
已閱讀5頁,還剩52頁未讀, 繼續(xù)免費(fèi)閱讀

下載本文檔

版權(quán)說明:本文檔由用戶提供并上傳,收益歸屬內(nèi)容提供方,若內(nèi)容存在侵權(quán),請(qǐng)進(jìn)行舉報(bào)或認(rèn)領(lǐng)

文檔簡介

英英語語Unit

1

ASmallChangeCanSolvetheProblemsofManyYou’llbeableto:1.describecreativeideas;2.talkaboutdifferentopinionsoncreativity;3.designaposter.Lookatthepictureanddiscuss:1.Whatisthepictureabout?2.Whatdoyouthinkofcreativity?目錄Contents01Warming

up02Listening

&

Speaking03Reading

&

Writing04GrammarinUse05MoreActivities06AroundtheWorld07FunTime08MyProgressCheck09WordsandExpressions01

Warming

up02

Listening&SpeakingLearnthewordssolve/s?lv/v.解決(問題)creative/kri?e?t?v/adj.

創(chuàng)造(性)

的;有創(chuàng)造力的opinion/??p?nj?n/n.

意見;看法creativity/?kri?e??t?v?ti/n.創(chuàng)造力;創(chuàng)造性

design/d??za?n/v.

設(shè)計(jì)dustbin/?d?stb?n/n.

垃圾桶

socket/?s?k?t/n.(電源)插座data/?de?t?,?dɑ?t?/n.數(shù)據(jù)cable/?ke?b?l/n.電纜wardrobe/?w??dr??b/n.

衣柜;衣櫥curious/?kj??ri?s/adj.好奇的unlikely/?n?la?kli/adj.

不大可能的chain/t?e?n/n.

鏈子;鏈條brilliant/?br?lj?nt/adj.

聰明的organise/???ɡ?na?z/v.

組織;安排

broaden/?br??dn/v.增長;擴(kuò)大application/??pl??ke???n/n.

申請(qǐng)(書)hole/h??l/n.洞;孔bracelet/?bre?sl?t/n.手鏈;手鐲like-minded/?la?k-?ma?nd?d/adj.趣味相投的;想法一致的slogan/?sl??ɡ?n/n.口號(hào);標(biāo)語LearnthewordsGuessgamedustbinWhat’sthis?GuessgamedatacableWhat’sthis?GuessgamesocketWhat’sthis?GuessgamewardrobeWhat’sthis?GuessgamechainWhat’sthis?01Warming

up1.Listenandmatchthewordsandexpressionswiththepictures.dustbinteaballsocketdatacablepenholderwardrobe聽力文本011.Itisadustbinthathelpssortrubbish.2.Itisateaballintheshapeofacutewhale.3.Itisasocketthatcanplugintoanotherone.4.ItisadatacablewithaUSBsocket.5.Itisapenholderthatlookslikeadice.6.Itisawardrobewithvividshapes.Warmingup012.Choosethetypicalqualitiesforacreativeperson.Warming

up01

smart

curious

careful

independent

interesting

hard-working02Listening

&

Speaking1.Listenandlearnthewordsandexpressions.solveunlikelykeychainbrilliantdesignorganisethemepartybroadenapplicationformHanLei:Oh,whatabaddaytoday!Ilostmy1)___________,again!SunYue:Howdidithappen?HanLei:Well,Iputitinmybagwithmanyotherthings.Ithinkitmight2)___________whenItookoutmywallet.SunYue:Maybeyouputitsomewhereelseandjustforgot.HanLei:That’sunlikely.It’sthethirdtimeI’velostatransitcard.IreallywishtheywouldmakeaholeinitsoIcouldtieittomykeychain.SunYue:That’sagreatidea.Asmallchangecan3)___________ofmany.HanLei:Yeah.Haveyougotanybetterideas?SunYue:Well,Ithinkthecardcouldbemadelikeabracelet.Sowewouldn’tneedto4)___________iteverytimeweuseit.HanLei:Brilliant!You’remorecreativethanIam.02Listening

&

Speaking2.Listenandcompletethedialoguewiththeexpressionsintheboxes.solvetheproblemsA

reachforBtransitcardC

falloutDCDAB文本翻譯02韓磊:哦,今天真糟糕!我又弄丟了我的交通卡!孫悅:怎么回事啊?韓磊:我把它和其他許多東西放在我包里。我想可能是在我拿出錢包的時(shí)候它掉出來了。孫悅:也許你把它放在其他地方了,只是忘記了。韓磊:那不可能。這是我第三次丟交通卡了。我真希望他們能在交通卡上面做個(gè)洞,這樣我就可以把它系在鑰匙鏈上了。孫悅:這是個(gè)很棒的主意。小小的改變能解決許多方面的問題。韓磊:是的。你有更好的主意嗎?孫悅:嗯,我覺得可以把卡片做成手鐲的樣子。這樣我們就不必每次用到時(shí)伸手去拿了。韓磊:太棒了!你比我更有創(chuàng)意。Listening

&

Speaking023.Listenagainandmatchthespeakerswiththeirideasaboutimprovingthetransitcard.Listening

&

SpeakingSunYuemakethetransitcardlikeabraceletmakeaholeinthetransitcardHanLei024.Listenandcompletethedialoguewiththesentencesinthebox.Listening

&

SpeakingA.Ienjoyitverymuch.B.HowcanIjoinyourclub?C.Yes,itwassetupbyagroupoflike-mindedstudents.D.Whatkindofactivitiesdoyoudo?TIPlike-minded:趣味相投的,想法一致的。02Albert:Debby,Iheardyou’djoinedanewclub.Debby:1)__________________Albert:Howdoyoulikeit?Debby:2)

__________________Therearemanycreativeactivities,andI’vemadeseveralinterestingfriendsthere.Albert:Really?3)__________________Debby:Well,wedoalotofthings,likedesigningculturalsignsandslogansforschools,organisingthemepartiesandcompetitions.Isn’tthatspecial?Albert:Yes,anditmeansthatyouwillhaveagoodchancetobroadenyourmind.Soundsfun.4)__________________Debby:Justfilloutanapplicationform.It’sallfree.Listening

&

SpeakingCADB文本翻譯02艾伯特:黛比,我聽說你加入了一個(gè)新的俱樂部。黛比:是的,它是由一群趣味相投的學(xué)生建立的。艾伯特:你覺得它怎么樣?黛比:我很喜歡這個(gè)俱樂部。有許多創(chuàng)意活動(dòng),我已經(jīng)在那里結(jié)交了一些有趣的朋友。艾伯特:真的嗎?你們做哪種活動(dòng)?黛比:嗯,我們做很多事情,比如為學(xué)校設(shè)計(jì)文化標(biāo)志和宣傳語,組織主題派對(duì)和競賽等。是不是很特別?艾伯特:是的,這意味著你們有很好的機(jī)會(huì)開闊心胸。聽起來很有趣。我怎樣能加入你們的俱樂部呢?黛比:只要填寫一張申請(qǐng)表就可以了。是完全免費(fèi)的。Listening

&

Speaking025.Listenagainandchoosetheactivitiesthecluborganises.Listening

&

Speaking

three-minutespeeches

designingactivities

themeparties

competitions√√026.Workinpairs.Listmorecreativeactivitiestheclubmayorganise.Listening

&

SpeakingHerearesomeexample:eco-friendlyfashionshows,artexhibitionsonspace03

Reading

&

WritingLearnthewordsinnovation/??n??ve???n/n.革新;創(chuàng)新increasing/?n?kri?s??/adj.不斷增加的;越來越多的value/?v?lju?/n.重要性profession/pr??fe??n/n.

行業(yè);職業(yè)mark/mɑ?k/n.成功;成名continuous/k?n?t?nju?s/adj.

持續(xù)的;不間斷的imaginative/??m?d??n?t?v/adj.

富有想象力的

permission/p??m???n/n.允許;許可marker/?mɑ?k?/n.

記號(hào)筆neat/ni?t/adj.

小巧迷人的puppet/?p?p?t/n.木偶;布袋木偶influence/??nflu?ns/v.

影響surroundings/s??ra?nd??z/n.周圍的事物inventive/?n?vent?v/adj.

有創(chuàng)造力的observe/?b?z??v/v.

觀察;觀測poem/?p???m/n.

詩;韻文Learnthewordspianist/?pi??n?st/n.

鋼琴演奏者;鋼琴家institute/??nst?tju?t/n.機(jī)構(gòu);學(xué)院legal/?li?ɡ?l/adj.

法律允許的;合法的lie/la?/v.

在于;位于luxury/?l?k??ri/n.奢侈品

donate/d???ne?t/v.捐(血);捐贈(zèng)marker9Goodmemory!innovationpianistpoemprofessionvalue2468markpermissioninstitute357103Reading

&

Writing1.Readthewordsandexpressions.Guesswhatthetextisabout.creativityvalue

professionbynatureimaginativecomeupwithinfluencesurroundings03Reading

&

Writing2.Readthetextandchoosetheopinionyouagreewithmost.LiRanWeliveinanageofinnovation,whencreativityisofincreasingvalue.Creativityisimportantnotonlyforartistsandwritersbutalsoforthosewhoworkintheprofessionssuchasscientistsandengineers.Creativethinkerscanchangetheworld.Forthosewhowanttomaketheirmark,continuousinnovationcanbethekeytosuccess.TIP“be+of+抽象名詞”中,“of+抽象名詞”相當(dāng)于該名詞對(duì)應(yīng)的形容詞。如:creativityisofvalue相當(dāng)于creativityisvaluable。文本翻譯03Reading

&

WritingZhaoJun

Ibelieveweareallcreativebynature.Anotherwordmightbeimaginative.Wejustneedtogiveourselvespermissiontotrytocreate.Lookatchildren.Theycreatetoysfromallsortsofthings;theymakeupstoriestogowiththem.Theycaneventakeabrownpaperbag,somemarkersandthenmakeaneatpuppet.SarahWemaythinkacreativepersonjustcomesupwithnewideasbyaccident,butactuallythat’snotthecase.Weareallinfluencedbythingsaroundus,butcreativepeoplepaymoreattentiontotheirsurroundings.Forexample,theideaofmakingaflyingmachine,oranairplane,camefromthoseinventivepeoplewholikedtoobservehowbirdsfly.文本翻譯03李冉我們生活在一個(gè)創(chuàng)新的時(shí)代,創(chuàng)造力越來越有價(jià)值。創(chuàng)造力不但對(duì)藝術(shù)家和作家重要,對(duì)那些諸如科學(xué)家和工程師等從事專門職業(yè)的人來說也重要。具有創(chuàng)新思考能力的人能改變世界。對(duì)于那些想有所成就的人來說,不斷創(chuàng)新會(huì)是他們成功的關(guān)鍵。Reading&Writing03Reading&Writing趙軍我相信我們所有人天生都有創(chuàng)造力,或者說是有想象力的。我們只需要允許自己嘗試著去創(chuàng)造。看看孩子們。他們用各種各樣的東西制作玩具;他們可以結(jié)合這些玩具編出很多故事。他們甚至用一個(gè)棕色紙袋和幾支馬克筆就可以做出一個(gè)精巧的玩偶。薩拉我們可能認(rèn)為一個(gè)有創(chuàng)造力的人只是偶然有了新想法,但事實(shí)上不是那樣的。我們都被周圍的事物所影響,但有創(chuàng)造力的人更關(guān)注他們周圍的事物。比如,制造飛行器或飛機(jī)的想法來源于那些喜歡觀察鳥類如何飛行的有創(chuàng)造力的人。033.Readagainandmatchthepeoplewiththeiropinions.Reading

&

Writing

LiRanZhaoJunSarahEveryonecanbecreative.Creativepeoplepaygreaterattentiontothingsaroundthem.Creativityisbecomingincreasinglyvaluable.034.Completethesentenceswiththecorrectformofthewordsandexpressionsinthebox.Reading

&

Writing1.

Allweneedissome____________andinnovation.2.

They____________alittlepoemandwroteitinacard.3.

He____________asapianistinthe1920s.4.Withyour____________,Iwouldliketovisittheinstitute.5.

Ifitisalegalmatter,youneedtoseek____________advice.professionmakeupcreativitymakeone’smarkpermitcreativitymadeupmadehismarkpermissionprofessional

Weliveinanageofinnovation,whencreativityisof____________(increase)value.Creativityisimportantnotonlyforartistsandwritersbutalsoforthose__________workintheprofessionssuchasscientistsandengineers.Creativethinkerscan____________(changeable)theworld.Forthosewhowanttomaketheirmark,continuousinnovationcanbethekeyto____________(succeed).Ibelieveweareallcreativebynature.Anotherwordmightbe____________(imagine).Wejustneedtogiveourselvespermissiontotrytocreate.Lookatchildren.They____________(creative)toysfromallsortsofthings;theymakeupstoriestogowiththem.Theycaneventakeabrownpaperbag,somemarkersandthenmakeaneatpuppet.Wemaythinkacreativepersonjustcomesupwithnewideasbyaccident,butactuallythat’snotthecase.Weareallinfluencedbythingsaroundus,butcreativepeoplepaymoreattention____________theirsurroundings.Forexample,theideaofmakingaflyingmachine,oranairplane,____________(come)fromthose____________(invent)peoplewholikedtoobserve__________birdsfly.Fillintheblanks.短文填空03Reading

&

Writingincreasingwhochangesuccessimaginativecreatetoinventivecamehow035.Workinpairs.Writedownyouropiniononcreativity.Reading

&

WritingAsavocationalschoolstudent,Ithinkcreativityliesin…Hereisanexample:Asavocationalschoolstudent,Ithinkcreativityliesincuriosity,independentthinkingandrepeatedexperiments.Curiosityisthekeytoanycreativeidea.Weseedifferentornewthingseverymoment.Unfortunately,wepaylittleattentiontothemorjustletthemgomostofthetime.Ifwecanstoptothinkindependentlyandbrainstormforamoment,newideasmaycomeintoourmind.What'smore,experimentshelpustryoutanynewidealikeachild.Thereisnorightorwrongwaywhenitcomestocreativity.Generallyspeaking,avocationalschoolstudentcanbecreativeinanyway.Ibelieveifwepaymoreattentiontodailylife,thinkindependentlyandkeeptrying,wewillbemorecreativeandmakeourworldabetterplace.036.Readtheslogansandmatchthemwiththepictures.Reading

&

WritingA.Sincewhenhasfoodbeenaluxury?B.Theelderlyneedyourlove.C.“Clearyourplate”campaignstartswithme.D.Donatebloodandsavelives.E.Theselinescanbeyourlifeline.F.Stopglobalwarming,betterlatethannever.DFECBA文本翻譯03A.何時(shí)開始食物變成了奢侈品?B.老年人需要你的關(guān)愛。C.“光盤行動(dòng)”從我做起。D.獻(xiàn)血拯救生命。E.斑馬線會(huì)成為你的生命線。F.阻止全球變暖,遲做總比不做好。Reading&Writing037.Designaposterforoneoftheslogansabove.Reading

&

WritingOpen-ended.04

GrammarinUse05

MoreActivitiesunderline/??nd??la?n/v.

在……之下畫線calculator/?k?lkj?le?t?/n.計(jì)算器

seal/si?l/v.把(信封、包裹等)封口envelope/?env?l??p/n.

信封pioneer/?pa???n??/n.先驅(qū);先鋒roof/ru?f/n.(建筑物、汽車、帳篷等的)頂;頂部leak/li?k/v.漏(水)waterproof/?w??t?pru?f/adj.

防水的insert/?n?s??t/v.插入float/fl??t/v.??;漂sink/s??k/v.下沉;沉沒convenience/k?n?vi?ni?ns/n.方便;便利

economic/?ek??n?m?k/adj.

經(jīng)濟(jì)(上)的

fame/fe?m/n.名聲;名氣promote/pr??m??t/v.促進(jìn);增進(jìn)conflict/?k?nfl?kt/n.

矛盾;沖突Learnthewordscarton/?kɑ?tn/n.

硬紙盒;塑料盒store/st??/v.

貯藏;貯存fortunately/?f??t??n?tli/adv.

幸運(yùn)地;幸虧fan/f?n/n.

電扇;風(fēng)扇hide/ha?d/v.把……藏起來;隱藏despite/d??spa?t/prep.

盡管;雖然lack/l?k/n.沒有;缺乏

blade/ble?d/n.

葉片狀物moreover/m??r???v?/adv.

此外;而且switch/sw?t?/n.開關(guān)port/p??t/n.

接口appliance/??pla??ns/n.家用電器;家用器具LearnthewordsReadandtranslatetheEnglishwordsintoChineseasquicklyaspossiblewhentheyappear.fameconvenienceenvelopewaterproofcalculatorindustrialpromote開關(guān)下沉儲(chǔ)藏幸運(yùn)地缺乏先鋒ReadandtranslatetheChinesewordsintoEnglishasquicklyaspossiblewhentheyappear.●

1.Ithinkthecardcouldbemadelikeabracelet.●

2.Iheardyou’djoinedanewclub.●

3.Ibelieveweareallcreativebynature.Readthesentencesandpayattentiontotheunderlinedparts.畫線部分本身為句子,位于謂語動(dòng)詞之后,在句中作賓語,被稱為賓語從句。賓語從句一般位于動(dòng)詞或介詞之后,連接詞通常有that(有時(shí)可省略),which,who,what,when,where,how,if,whether等。賓語從句通常使用陳述句的語序,時(shí)態(tài)常受主句謂語時(shí)態(tài)的制約。如:?Shegaveusadescriptionofwhathadhappened.?Hesaid(that)heneededacalculator.?Couldyoutellmehowyousealedtheenvelope?GrammarinUse賓語從句GrammarinUse賓語從句Completethesentenceswiththeproperwordsinbrackets.1.Iheard____________(who/that)hewasapioneerinthisfield.2.Tracysaidtheroof____________(isleaking/wasleaking).3.Hewascuriousabout____________(where/why)wehadbeen.4.Ididn’tknowwho____________(invents/invented)thewaterproofcamera.5.Tellme_____________(howyouinserted/howdidyouinsert)itintothelock.6.Sheaskedme____________(what/why)someeggsfloatedinwaterandotherssank.thatwasleakingwhereinventedhowyouinsertedwhy051.Matchtheexpressionswiththeirmeanings.MoreActivities1.solveproblems2.broadenone’smind3.changetheworld4.bringconveniencetolife5.bringeconomicbenefits6.protecttheenvironment7.bringsuccessandfame8.promotetechnicaldevelopmentA.給生活帶來便利B.推進(jìn)技術(shù)發(fā)展C.保護(hù)環(huán)境D.帶來經(jīng)濟(jì)效益E.改變世界F.帶來成功和名譽(yù)G.開闊某人的思路H.解決問題HGEADCFB052.Readthetextandlistthebenefitsofthefollowinginventions.MoreActivitiesEggcartonBeforetheinventionoftheeggcarton,eggswerecarriedinbaskets.Theeggcartonwasinventedin1911byanewspapereditorJosephCoyle,tosolveaconflictbetweenafarmerandahotelowner,overthefarmer’seggsoftenbeingdeliveredbroken.Thankstotheeggcarton,it’sconvenientforpeopletostoreandtransporteggs.Eggcarton:?convenienttostoreeggs?文本翻譯convenienttotransporteggs05蛋盒在蛋盒發(fā)明之前,人們都用籃子攜帶雞蛋。1911年,為了解決一位農(nóng)民和一位旅館老板因雞蛋經(jīng)常在運(yùn)輸中被打破而產(chǎn)生的矛盾,一位報(bào)紙編輯約瑟夫·科伊爾發(fā)明了蛋盒。多虧了蛋盒,人們儲(chǔ)存和運(yùn)輸雞蛋變得方便。MoreActivities05MoreActivitiesBladelessfanTraditionalfanswithbladesareoftenunsafe.Fortunately,abladelessfanwasinventedbyJamesDysonin2009.Therearenovisiblemovingbladesinthisfan.Thebladesarehiddeninsidethebaseofthefan.Despitetheirlackofblades,bladelessfanspromisetobemoreefficientthantraditionalfanswithbladesandareeasytoclean.Aboveall,theyhavenohigh-speedmovingbladestohurtanypartofourbodies.Bladelessfan:文本翻譯·mightbemoreefficientthantraditionalfanswithblades·mightbeeasytoclean·nohigh-speedrotatingbladestohurtanypartofbodies05無葉風(fēng)扇傳統(tǒng)有葉風(fēng)扇通常不安全。幸運(yùn)的是,2009年詹姆斯·戴森發(fā)明了一臺(tái)無葉風(fēng)扇。這種風(fēng)扇沒有可見的旋轉(zhuǎn)葉片。葉片隱藏在風(fēng)扇底座里。雖然沒有葉片,無葉風(fēng)扇可能比傳統(tǒng)有葉風(fēng)扇更高效、更易于清潔。尤其是它們沒有高速旋轉(zhuǎn)的葉片,不會(huì)傷害我們身體的任何部位。MoreActivities05MoreActivitiesWi-FismartwallsocketRegularsocketscan’tconnecttoUSBcables.Moreover,althoughtheyhaveswitches,weoftenforgettoswitchthemoff.NowtheWi-Fismartwallsocketcansolvetheseproblems.IthasaUSBport,whichcanchargeUSBdevices.Inaddition,thesocketcanbeoperatedthroughafreeapp,soitcanbetimedtobeconnectedordisconnectedtoelectricity,whichenablesustorealisesmartmanagementofelectricalappliancesconnectedtothesocket.Wi-Fismartwallsocket:文本翻譯·canconnecttoUSBcables·canbetimedtobeconnectedordisconnectedtoelectricity05無線智能插座常規(guī)的插座不能連接USB線。而且,雖然它們有開關(guān),我們經(jīng)常忘記關(guān)閉?,F(xiàn)在,無線智能插座能解決這些問題。它有USB口,能給USB裝置充電。而且,這種插座能通過一個(gè)免費(fèi)的應(yīng)用程序操控,所以人們可以將其定時(shí)連接電源或關(guān)閉電源連接,這讓我們實(shí)現(xiàn)了對(duì)連接在插座上的電器的智能化管理。MoreActivitiesEggcartonBeforetheinventionoftheeggcarton,eggswere_____(carriy)inbaskets.Theeggcartonwasinventedin1911byanewspapereditorJosephCoyle,tosolveaconflictbetweenafarmerandahotelowner,overthefarmer’seggsoftenbeingdeliveredbroken.Thanks_____theeggcarton,it’sconvenientforpeopletostoreandtransporteggs.BladelessfanTraditionalfanswithbladesareoften_____(safe).Fortunately,abladelessfanwasinventedbyJamesDysonin2009.There_____(be)novisiblemovingbladesinthisfan.Thebladesarehiddeninsidethebaseofthefan.Despitetheirlackofblades,bladelessfanspromisetobe_____(much)efficientthantraditionalfanswithbladesandareeasytoclean.Aboveall,_____(them)havenohigh-speedmovingbladestohurtanypartofourbodies.Wi-FismartwallsocketRegularsocketscan’t_____(connect)toUSBcables.Moreover,althoughtheyhaveswitches,weoftenforgettoswitchthem_____.NowtheWi-Fismartwallsocketcansolvetheseproblems.IthasaUSBport,_____canchargeUSBdevices.Inaddition,thesocketcanbeoperatedthroughafreeapp,soitcanbetimedtobeconnectedordisconnectedtoelectricity,whichenablesustorealisesmartmanagementof_____(electricity)appliancesconnectedtothesocket.05Fillintheblanks.短文填空carriedelectricalwhichoffconnecttheymoreareunasfeto053.Searchforothercreativeinventionsonlineandwritedownthebenefitstheybringus.MoreActivitiesCreativeinventionsBenefitsHereisanexample:TheinvisiblebikehelmetTheairbaghelmetishiddeninastylishneck

collarandwillinflateinthecaseofanaccident

toprotectthebikeriders.Thefloatingrubbishbin

Itcollectsfloatingrubbishintheoceanandhelps

preventoceanpollution.ThebookmarklampItprovidesenoughlightforbookloverstoenjoy

readingatnightwithoutdisturbingothers.06

AroundtheWorld06AroundtheWorld1.Whatdoyouthinkisthemostusefulinventioninyourlife?2.Doyouknowwhoinventedit?文本翻譯Theziphasbecomesocommonthatwealmosttakeitforgranted.WhitcombL.JudsonfromChicagoisbelievedtobethe“InventoroftheZip”,butitwasactuallyGideonSundbackwhodesignedthemodernzip.TodaythezipsproducedeachyeararelongenoughtostretcharoundtheEarthmanytimes!Inventedin1770,theeraserisusedtoerasepencilmarks.Beforeitsinvention,believeitornot,breadwasusedtoerasepencilmarks.Evenbetter,in1858,HymenLipmaninventedtheall-in-onepencilwithaneraser.In1968,aUSscientist,DrSpencerSilver,tried

todevelopasuper-strongadhesive(粘合劑).However,heaccidentallycreatedareusableandpressure-sensitive

溫馨提示

  • 1. 本站所有資源如無特殊說明,都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請(qǐng)下載最新的WinRAR軟件解壓。
  • 2. 本站的文檔不包含任何第三方提供的附件圖紙等,如果需要附件,請(qǐng)聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
  • 3. 本站RAR壓縮包中若帶圖紙,網(wǎng)頁內(nèi)容里面會(huì)有圖紙預(yù)覽,若沒有圖紙預(yù)覽就沒有圖紙。
  • 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
  • 5. 人人文庫網(wǎng)僅提供信息存儲(chǔ)空間,僅對(duì)用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理,對(duì)用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯,并不能對(duì)任何下載內(nèi)容負(fù)責(zé)。
  • 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容,請(qǐng)與我們聯(lián)系,我們立即糾正。
  • 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時(shí)也不承擔(dān)用戶因使用這些下載資源對(duì)自己和他人造成任何形式的傷害或損失。

評(píng)論

0/150

提交評(píng)論