单元重点词汇及主课文讲解VIP免费

Unit13重点词汇及主课文讲解㈠重点词汇讲解:1.cube1)立方形,立方体,方块;2)立方;三次幂Pleasebringmeanicecube(一块冰块)outofthefridge.Thecubeof2is8.2的3次幂是8.Thecuberootof27is3.27的立方根是3.◇cubic立方的；立方形的◇perfectcube完全立方◇cuberoot立方根◇cubepower方形火药2.sailor1)海员,水手;乘船者ThesailorslandedonDalian.海员在大连上岸.HehadbeenasailorintheUSAnavy.他曾在美国海军当水兵.Iamabadsailor.我是一个爱晕船的人.2)（同）seaman海员；水手3.benefit1)vt.“对…有利”,后面接名词&代词,但不接反身代词Exercisebenefitourhealth.Youradvicebenefitedmeagreatdeal..Thefreshairwillbenefityou.2)vi.“获益,得益于”,后面可接from/byWebenefitby/fromdailyexercises.Theplantsbenefitedfromtherain.3)n.益处,好处(可数&不可数)Itoldthemallthebenefitsoffreshairandexercise.Hegotalotofbenefitfromtheholiday.假期让他受益匪浅！Youradvicewasofgreatbenefittome.你的忠告对我很有好处4)forthebenefitof◇为了…的利益◇beofbenefittosb.对…有好处4.property1)财产;不动产;所有权(不可数);(某处特定的)地产(可数)Thissmallhouseismyonlyproperty.（唯一的财产）Withthecitydevelopingrapidly,propertyinthecenterisbecomingmoreexpensive.Hehasalargepropertyinthecounty.他在这个县有一大宗地产。2)性能,特性(可数)Onepropertyofsteelisitshardness.坚固是钢的特性之一Heisstudyingthemedicinalpropertiesofwildplants.他正在研究野生植物的药物特性。Manyplantshavemedicinalproperties.5.range1)vt.“排列,归类”,其宾语为排列对象,后接介词on/in/along表示方向或趋势Theteacherrangedthepupilsalongthecurb.教师叫学生沿着路边排队。Irangedthebooksontheshelfby/accordingtosize.我把书依照大小顺序排在书架上。Thecardsarerangedinalphabeticalorder.2)vi.在…范围内变动&(山脉等)绵亘,伸展,排列,延及Thetemperaturerangesbetween30and40degreescentigrade.Theroadrangeswestwardfromthelake.这条路由湖边向西延伸3)(不可数)“范围”,指认知,知识,经验或能力方面的范围◇beoutofone’srange某人所不能及的,非自己知识范围之内的◇beyondtherangeofhumanunderstanding超越人类理解的范围◇withinrangeofvision在看得到的范围之内Thehousesaresoldoutwithinthispricerange.在这个价位范围之内的房子已售完。4)(可数)“变化(范围)”,指变动的范围/数量/程度Thecompanysellsnewcarswithawiderangeofprices.该公司销售价格差异很大的各种新车。ThisstoresellsawiderangeofTVsets.这家商店出售各种型号的彩电。5）（可数）延展的一组或一系列；山脉Thelibraryhasrangesofbooksinperfectorder.这个图书馆的书一排一排放得井井有条。mountainrange=arangeofmountains(一列)山脉6.solidadj.&n.liquidgas1)adj.“固体的”，与liquid“液体”或gas“气体”相对.Iceissolidwater.冰是固态的水.Whenwaterfreezes,itbecomessolid.2）“坚固的；可靠的”Iwantagood,solidboxthatwon’tbreakeasily.我需要一个完好而结实的盒子。Thebuildingdoesn’tlookverysolid.3)n.“固体”，经常用作可数名词.Mostmatterhasthreestates:solid,liquidandgas.Ironandstonearesolids.铁和石头是固体.Nowheiswellenoughtotakesolids.现在他病好了，可以吃固体食物了.4)beinsolidwithsb.◇受到某人重视；得宠于某人；与某人关系好◇be/gosolidagainst/for一致反对/赞成◇makeoneselfsolidwithsb.获得某人可靠的支持7.pure1)纯粹的；干净的；无有害物质的;纯洁的；清白的；无邪的Isthiscupmadeofpuregold?Thewaterinmountainriversisusuallypure.2)“完全的；彻底的”，常用来加强语气Whatyouaresayingispurenonsense.Itisapureaccident.3）◇thepurein/ofheart心地纯洁的...