必修三Unit3Theworldofscience反饋案（20mins）1.Learningaims(教學目標)1.Summarizetheusageofbasicwordsandphrases.2.Reviewthegrammar:tense（完成時態）2.Teachingimportantpoints(重點)Memorizethevarietyofthekeywords.(desirebeyondsignificantattachintermsof強調句型)3.Teachingdifficultpoints(難點)動詞的時態與被動語態Grammar[歸納用法]一、現在完成時被動語態的構成現在完成時被動語態的結構為has/havebeendone，使用hasbeendone時主語為單數，使用havebeendone時主語為復數。二、現在完成時被動語態的概念現在完成時被動語態強調一個發生在過去的被動性動作，它有兩層意思：(1)動作已經完成，強調對現在造成的影響或結果：(2)主語與謂語動詞之間為被動關系。如：Ourclassroomhasbeencleaned，youneedn'tcleanitnow.我們的教室已經被打掃過，你現在沒必要再打掃了。Theseflowershavebeenwatered，youcangohome.這些花已經被澆水了，你可以回家了。[即時訓練]把下列句子改成被動句。1．Wehavecleanedourclassroom.→______________________________.2．Hehassoldoutallhisbikesintheshop.→_____________________________________3．Hehasn'tfinishedhishomework.→__________________________________________4．Grandmahastakencareofthechildalltheseyears.→_______________________________________________5．Hehasrepairedthemachinefortwohours.→__________________________________________________鞏固訓練Ⅰ.單句語法填空1.Papermoney___________(use)foroverathousandyears.2.Greatchanges_____________(take)placeinmyhometownandalotoffactories_______________(set)up.3.Thisbook___________(translate)intomanylanguagesuptonow.4.Thefire______(get)tothefifthfloor.Iwonderwhetherallthepeople___________(save)．5.—Wewanttositatthetablenearthewindow.—I'msorry，butit___________(take)already.6.Someofthechapters(章)___________(read)bymanystudents.7.Whydon'tyougotothebookstoretobuysomebooks？Manynewbooks___________(bring)there.8.Thismonthtillnow，threefilms___________(show)inthatsmallvillage.9.Doyouknowthethief___________(catch)bythepolice?10.Mysisterisworkinginthepowerplantthat________________(use)forjustoneyear.11.Itisthefirsttimethathe(praise)byhiscoach.12.Recentlythefloorofthehall(mop)wellbutthewindowisstilldirty.13.Sofar,manypartsoftheGreatWall(repair).14.Uptonowmorethanfivecities(strike)bythetyphoon.15.Allthemeasures(take),sowecandonothingbutwait.16.Muchattention__________________(pay)byTomtohishandwritingsincetheteacherwarnedhimofit.總結：現在完成時態標志：II.語法填空1.Mr.Blackisaspecialistinchemistry.__________addition,heisafamouswriter.2.Onreturninghome,shefoundanote_____________(attach)tothedoor,reading"Callinlater”.3.Lucywasdeepinthought,tryingtocomeup_________aplantoreducecostsofproduction.4.Actually,allofusdesire___________(achieve)success,butsometimesouractionsdon'tcorrespondwithwhatwedesire.5.Themeetingyouattendedlastmonthwasofgreat_______________(significant)foryourfuture.6.Caringforelderlyparentscantakegreateffortsemotionallyandphysically,andthefinancialchallengescansometimesseem____________ourability.7.Manyofthescientistsandengineersarejudged________termsofhowgreattheirachievementsare.8.Butsoldierswhodonothavemedicaltrainingmaynotknowhowtohelptheir__________(injure)friends,9.Weshouldhelpthosewhoare___________(capable)oftakingcareoftheirpersonalaffairs.10.Thanks_____theinventionofthemobilephone,peoplecannowkeepintouchwitheachotherquiteeasily.III.句式升級1.當談到發展我們的經濟時，我們必須考慮環保。(accouno)Whenitcomestodevelopingoureconomy,wemust___________________________________________我們的政府現在非常重視教育，這使許多人能夠受到良好的教育。(attach)Ourgovernment________________________educationnow,which______________________________吉姆臉上滿意的微笑表明他已經得到了那份工作。(suggest)ThesatisfiedsmileonJim'sface__________________________________________________________4.Heconcentratedhismindonhisworkanddidn'tnoticemyappearance./