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1、高一英语外研版必修1Module5ALessoninaLab学案一、知识要点1.Whenweusemetal,itisimportanttoknowhowtheyreactwithdifferentsubstances,forexample,waterandoxygen.使用金属时,要了解金属和不同的物质怎样发生反应,例如水和氧气,这一点很重要。react作不及物动词,“起化学反应”,reactwithsth.与某物起化学反应它还有“对某人或某物做出反应”之意,常与介词to连用reacttosth./sb.2.Thereactionofmetalswiththesesubstancescanb
2、eputinorder.(不同的)金属与这些物质的反应程度可以按顺序排列起来。inorder“按顺序、次序”,还有“适当的;能用的”意思,反义词组为outoforder例如Heputhisbusinessaffairsinorderbeforehewenttotravel.翻译:Theliftwasoutoforderandhewastrapped.翻译:3.数字表达法(1)1,000以上词的表达法:先从后向前数,每三位数加一个逗号,用这个方法把数目分作若干段,再一段段的念;第一个逗号前的数为thousand,第二million,第三billion.一般用作单数,若用复数形式,要用“复数形式+
3、of”。例如:4,007fourthousandandseven54,256,000fifty-fourmilliontwohundredandfifty-sixthousand14,800,000,000hundredsofbooks好几百本书thousandsofyoungpeople(2)分数词构成法:分数词有基数词和序数词构成,基数词代表分子,序数词代表分母。分子是1时,分母用单数,分子不是1时,分母都用复数形式。例如:1/2one-second1/4one-fourth3/4three-fourths2/3two-thirds5/9five-ninths1/2,1/4,3/4还可表示
4、为1又1/2oneandhalf7又3/4sevenandthreequarters3又2/5threeandtwo-fifths47又3/84.Thesciencefacilitiesareverygood,withlaboratoriesthathaveallthelatestequipment.这些科研设施非常好,实验室配有最新的设备。(1)facility常用作复数名词,表示为某种目的提供的设施(如房屋、设备、服务等)。例如:Thisisa5-starhotelwithgoodfacilities.翻译:也可用作单数,“设备;天赋;才能。”例:Shehasanamazingfacili
5、tyformaths.练习:Weneedtoconsiderwhatwewillbeusingforlanguagetraining.A.abilitiesB.applianceC.facilitiesD.qualities(2)with在句中意为“带有,具有”,引导短语对句子作附加说明,thathaveallthelatestequipment是定语从句,修饰先行词laboratories。例:HeleftforBeijingwithasuitcasethatcontainedalotofmoney.翻译:5.TheNobelPrizeisthehighestscientificprizet
6、hereis,soweshouldbeveryproudofthat.诺贝尔奖是目前最高的科学奖,我们应该为此感到骄傲。beproudof为…而自豪例如:Weareproudofourmotherland.otherstaffoftheCentre.Duringthewar,ZhuwastransferredbacktoJiangxi,andDirectorofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,Secretaryo
7、ftheSpecialCommitteeAfterthevictoryofthelongMarch,hehasbeentheNorthwestOfficeoftheFederationofStateenterprisesMinister,ShenmufuguSARmissions,DirectorofNingxiaCountypartyCommitteeSecretaryandrecorderof