Unit3

TheworldofscienceUsinglanguageComparesentencesa&cwithsentencesb&dandanswerthe2questions.a.Iguessyouhavebeenaskedaboutthetitleofyourbookbefore.b.Newinventionslike3Dprintershavebeenusedtomakereplacementheartsandboneparts.c.Iguesssomeonehasaskedyouaboutthetitleofyourbookbefore.d.Peoplehaveusednewinventionslike3Dprinterstomakereplacementheartsandboneparts.1:Whatisthedifferencebetweenthetwogroupsofsentences?(Payattentiontothesubject&predicate)2:Whydoestheauthorchoosetousesentencea&binsteadofsentencec&dinthereadingpassage?a.Iguessyouhavebeenaskedaboutthetitleofyourbookbefore.b.Newinventionslike3Dprintershavebeenusedtomakereplacementheartsandboneparts.c.Iguesssomeonehasaskedyouaboutthetitleofyourbookbefore.d.Peoplehaveusednewinventionslike3Dprinterstomakereplacementheartsandboneparts.1:Whatisthedifferencebetweenthetwogroupsofsentences?(Payattentiontothesubject&predicate)2:Whydoestheauthorchoosetousethepassiveforminsteadoftheactiveforminthereadingpassage?Theyhavedifferentsubjectandpredicate.sentencea&b:passivevoicesentencec&d:activevoiceToemphasize/stressthereceiveroftheaction.Nowlookformoresentenceswiththepresentperfectpassiveinthereadingpassage.1.I’llbetalkingtoDrRichardFairhurst,whosenewbookTheNewAgeofInventionhasjustbeenpublished.2.Iguessyouhavebeenaskedaboutthetitle...before.3.Inaddition,importantadvanceshavebeenmadeinmedicineand...power.4.Newinventionslike3Dprintershavebeenusedtomakereplacementheartsandboneparts.5.Ihavealsobeentoldthatyou’reaninventoryourself.6.NothinglikethishasbeeninventedyetandI’dsaywe’realongwayfromaninventionlikethatatthemoment!

回顧文本,用所給詞正確形式完成下列句子,體會句中使用的時態(tài)和語態(tài)。1.Thisevening,I’llbetalkingtoDrRichardFairhurst,whosenewbookThe

New

Age

of

Invention

___just______________(publish).hasbeenpublished我想你以前已經(jīng)被問過關(guān)于你的書題目的問題。2.Iguessyou_______________(ask)aboutthetitleofyourbookbefore.___________________________________________havebeenasked我想你以前已經(jīng)被問過關(guān)于你的書題目的問題。3.Inaddition,importantadvances_______________(make)inmedicineandenvironmentalsciencethankstoincreasingcomputerpower.____________________________________________________________havebeenmade此外,由于計算機能力的提高,醫(yī)學(xué)和環(huán)境科學(xué)也取得了重要進展。4.Newinventionslike3Dprinters______________(use)tomakereplacementheartsandboneparts.____________________________________________________________5.I_____also_________(tell)thatyou’reaninventoryourself._________________________________havebeenused像3D打印機這樣的新發(fā)明已經(jīng)被用來制造替換的心臟和骨骼部分。havebeentold我也被告知你本人就是一位發(fā)明家。6.Nothinglikethis________________(invent)yetandI’dsaywe’realongwayfromaninventionlikethatatthemoment!_________________________________________________________________________hasbeeninvented還沒有像這樣的東西被發(fā)明,而且我得說目前我們離這樣的發(fā)明還有很長一段路。將主動語態(tài)改成被動語態(tài)：1:Iguesssomeonehasaskedyouaboutthetitleofyourbookbefore.

Iguessyouhavebeenasked(bysomeone)aboutthetitleofyourbookbefore.Newinventionslike3Dprintershavebeen

usedbypeopletomakereplacementheartsandboneparts.Peoplehaveusednewinventionslike3Dprinterstomakereplacementheartsandboneparts.主動語態(tài)變被動語態(tài)口訣：

賓語提前主語變，原主變賓by后見，時態(tài)人稱be關(guān)鍵。

現(xiàn)在完成時的被動語態(tài)1:意義：現(xiàn)在完成時的被動語態(tài)強調(diào)過去的動作對現(xiàn)在造成的影響或結(jié)果,但主語為動作的承受者,表示“……已經(jīng)被……”。2：結(jié)構(gòu)：基本結(jié)構(gòu)“主語+have/hasbeendone”

否定式:have/hasnotbeendone。

一般疑問句形式：Have/Has+主語+beendone。

特殊疑問句形式:特殊疑問詞+have/hasbeendone。3：使用情況：1）：不知道或沒有必要說明動作的執(zhí)行者2）:強調(diào)動作的承受者，而不強調(diào)動作3）:動作的執(zhí)行者很模糊4）:有時為了禮貌的需要，避免說出動作的執(zhí)行者4：標(biāo)志詞：通常與already,yet,just,never,recently，uptonow,untilnow,sofar,inthepast/last+時間段等連用。【即學(xué)活用】(1)Theexperiment_____________successfully.這個實驗做得很成功。(2)Thebooks______________________bythestudents.那些書還沒有被學(xué)生們借走。hasbeendonehavenotbeenborrowed(3)____thesportsmeeting___________untilnextFriday?運動會已經(jīng)推遲到下周五了嗎? (4)Soeventheolivewreath________________.就連橄欖枝花環(huán)也被取代了。（5）_________hastheprojectbeencarriedout?這項工程已被實施多長時間了?

HasbeenputoffhasbeenreplacedHowlongRewritetheunderlinedpartsusingthepresentperfectpassive.Withinthenext80years,ourlivesmaybechangedbeyondrecognitionby3Dprinting.lthasalreadyaffectedmanythingsinourlives,rightdowntothefoodweeat.Forinstance,somerestaurantsinLondonhaveserved3D-printedhamburgerstocustomers.Manythingshavebeenalreadyaffectedinourlives...3D-printedhamburgershavebeenservedtocustomersbysomerestaurantsinLondon.Butperhapsthemostsignificantsuccessthatpeoplehaveachievedtodateisinmedicine.Theyhavemadehumanbodyparts,includingabeatingheart,with3Dprintingtechnology.Anditisnotjusthumanswhoarebenefiting-inBrazil,peoplehavegivenanew3D