外研版七下英语单词重点

外研版七下英语单词重点

第一单元：Moreaboutlanguage

1.revise(v.)-torevieworstudysomethingagain,especiallybeforeanexam

Example:Ineedtoreviseformyhistorytesttomorrow.

2.acquire(v.)-togetorgainsomething,especiallyknowledgeoraskill

Example:Ittakestimeandpracticetoacquirefluencyinaforeignlanguage.

3.bilingual(adj.)-abletospeaktwolanguagesfluently

Example:Mycousinisbilingual—shecanspeakbothEnglishandSpanishfluently.

4.dialect(n.)-aregionalorsocialvarietyofalanguagethatmaydifferinpronunciation,vocabulary,andgrammar

Example:Thedialectspokeninthesouthernpartofthecountryisquitedistinctfromthestandardlanguage.

5.fluent(adj.)-abletospeakorwritealanguageeasilyandaccurately

Example:AfterlivinginFranceforseveralyears,shebecamefluentinFrench.

6.heritage(n.)-thetraditionalbeliefs,values,customs,etc.,ofafamily,country,orsociety

Example:It'simportanttopreserveourculturalheritageforfuturegenerationstoappreciate.

7.interact(v.)-tocommunicateorworktogetherwithsomeone

Example:Ingroupprojects,studentsareencouragedtointeractandcollaboratewiththeirclassmates.

8.literacy(n.)-theabilitytoreadandwrite

Example:Thegovernmentlaunchedacampaigntoimproveliteracyratesinruralareas.

9.multicultural(adj.)-relatingtoorincludingmultipleculturesorethnicities

Example:Thecityisknownforitsmulticulturalpopulationanddiverserangeofcuisines.

10.oral(adj.)-spokenratherthanwritten;relatedtospeakingorthemouth

Example:Thestudentshadtogiveanoralpresentationontheirresearchfindings.

11.proficiency(n.)-ahighlevelofknowledgeorskillinaparticulararea

Example:Shehasachievedahighlevelofproficiencyinplayingthepiano.

12.slang(n.)-informalwordsorphrasesusedincasualconversation,oftenspecifictoaparticularsocialgrouporcommunity

Example:Itcanbedifficultfornon-nativespeakerstounderstandslangexpressions.

13.stimulate(v.)-toencourageorinspiresomethingtohappenordevelop

Example:Readingbookscanstimulateachild'simaginationandcreativity.

14.verbal(adj.)-relatingtowordsorspeakingratherthanactionsorpictures

Example:Theteacheraskedthestudentstoengageinaverbaldiscussionaboutthebooktheyhadread.

15.visual(adj.)-relatedtoseeingorsight;usingimagesorpictures

Example:Thepresentationincludedvisualaidssuchasgraphsandchartstohelpexplainthedata.

第二单元：Strength&intelligence

1.analyze(v.)-toexamineorstudysomethingcarefullyinordertounderstanditbetter

Example:Thescientistanalyzedthedatacollectedfromtheexperimenttodrawconclusions.

2.concept(n.)-anideaorageneralunderstandingofsomething

Example:Ittookmeawhiletograsptheconceptsbeingtaughtinmymathclass.

3.demonstrate(v.)-toshowsomethingclearlythroughexamplesorevidence

Example:Theprofessordemonstratedthechemistryexperimenttohisstudents.

4.distinct(adj.)-clearlydifferentorseparatefromsomethingelse

Example:Thetwospeciesofbirdshavedistinctfeaturesthatmakethemeasytoidentify.

5.empirical(adj.)-basedonobservationorexperienceratherthantheoryorlogic

Example:Theresearchersconductedanempiricalstudytogatherdataontheeffectsofclimatechange.

6.hypothesis(n.)-aproposedexplanationbasedonlimitedevidence,usedasastartingpointforfurtherinvestigation

Example:Thescientistformedahypothesisaboutthecauseofthediseaseandconductedexperimentstotestit.

7.intelligence(n.)-theabilitytolearn,understand,andthinkinalogicalandeffectiveway

Example:Shehasahighlevelofintelligenceandexcelsinallheracademicsubjects.

8.interpret(v.)-toexplainorunderstandthemeaningofsomething

Example:Theteacherhelpedthestudentsinterpretthepoembydiscussingitsthemesandsymbolism.

9.perceive(v.)-tobecomeawareoforunderstandsomethingthroughthesensesorbyintuition

Example:Differentpeoplemayperceiveasituationdifferentlybasedontheirownperspectivesandexperiences.

10.reasoning(n.)-theprocessofthinkingaboutsomethinginalogicalandrationalway

Example:Thelawyerusedclearandlogicalreasoningtobuildhiscase.

11.scenario(n.)-apossiblesequenceofeventsorasituationthatmayoccur

Example:Thecompanypreparedfordifferentbusinessscenarios,includingpotentialchallengesandopportunities.

12.solution(n.)-awaytosolveaproblemorovercomeadifficulty

Example:Aftercarefulanalysis,theteamcameupwithainnovativesolutiontothedesignchallenge.

13.theory(n.)-awell-testedandprovenexplanationorsetofprinciplesthatexplainswhysomethinghappens

Example:Einstein'stheoryofrelativityrevolutionizedourunderstandingofspace,time,andgravity.

14.vague(adj.)-unclearornotfullydeveloped;notclearlyexpressedordefined

Example:Theinstructionswerevague,soIwasn'tsureexactlywhattodo.

第三单元：Scientificdiscoveries

1.astronomer(n.)-ascientistwhostudiesthestars,planets,andothercelestialobjects

Example:Galileowasafamousastronomerwhomadesignificantcontributionstothefield.

2.bacteria(n.)-single-celledmicroorganismsthatcancausediseaseorhaveotherbeneficialeffects

Example:Antibioticsareusedtokillharmfulbacteriainthebody.

3.biodiversity(n.)-thevarietyofdifferentspeciesofplantsandanimalsinaparticularhabitatoronEarthasawhole

Example:Thedestructionofrainforestsiscausingalossofbiodiversity.

4.clone(n.)-anorganismthatisgeneticallyidenticaltoanotherindividual;tomakeanidenticalcopyofsomething

Example:Dollythesheepwasthefirstsuccessfulcloneofamammal.

5.ecosystem(n.)-acommunityoflivingorganismsandtheirphysicalenvironment,interactingasasystem

Example:Coralreefsareimportantecosystemsthatsupportawidevarietyofmarinelife.

6.extinct(adj.)-nolongerexistingorliving;nolongerinuse

Example:Thedodobirdbecameextinctinthe17thcentury.

7.gene(n.)-aunitofhereditythatispassedfromparentstotheiroffspring,determiningthecharacteristicsandtraitsofanorganism

Example:Genesplayaroleindetermininganindividual'seyecolor,height,andotherphysicalfeatures.

8.genetic(adj.)-relatedtogenesorinheritedcharacteristics

Example:Genetictestingcanprovideinformationaboutaperson'sriskforcertaindiseases.

9.habitat(n.)-thenaturalenvironmentwhereaparticularplantoranimalspecieslives

Example:Polarbearsrelyonseaiceastheirhabitatforhuntingandresting.

10.microscope(n.)-aninstrumentusedtomagnifysmallobjectsthatarenotvisibletothenakedeye

Example:Thescientistexaminedthecellsunderamicroscopetostudytheirstructure.

11.molecule(n.)-thesmallestunitofachemicalcompoundthatretainsthechemicalpropertiesofthatcompound

Example:Waterismadeupoftwohydrogenatomsbondedtooneoxygenatom,formingawatermolecule.

12.organism(n.)-anylivingthing,includingplants,animals,fungi,andbacteria

Example:Therainforestishometoadiverserangeoforganisms,fromtinyinsectstolargemammals.

13.respiration(n.)-theprocessbywhichlivingorganismstakeinoxygenandreleasecarbondioxide,producingenergy

Example:Plantsperformrespirationduringthedayandphotosynthesisatnight.

14.species(n.)-agroupoforganismsthatareabletoreproduceandhaveoffspringthatcanalsoreproduce;thebasicunitofclassificationinbiology

Example:Thereareover8millionknownspeciesonEarth.

15.tissue(n.)-agroupofsimilarcellsthatworktogethertoperformaspecificfunctioninanorganism

Example:Muscletissueallowsformovementandhelpstosupportthebody.

第四单元：Mysteriesofthemind

1.addiction(n.)-astrongphysicalorpsychologicaldependenceonasubstanceorbehavior

Example:Drugaddictioncanhaveseriousconsequencesonaperson'shealthandwell-being.

2.anxiety(n.)-afeelingofuneaseorworry,oftenaboutsomethingthatmighthappeninthefuture

Example:Sheexperiencedsymptomsofanxietybeforeherjobinterview.

3.conscious(adj.)-awareofandrespondingtoone'ssurroundings;awakeandabletothinkandperceive

Example:Heregainedconsciousnessaftertheoperationandwasabletospeaktohisfamily.

4.depression(n.)-feelingsofseveredespondencyanddejection,typicallyaccompaniedbyalackofenergyandinterestinactivities

Example:Depressionisacommonmentalhealthconditionthatcanaffectaperson'smood,thoughts,andbehavior.

5.emotion(n.)-astrongfeelingsuchasjoy,sorrow,anger,orlove

Example:Shecouldn'tcontrolheremotionsandburstintotearsatthenews.

6.hallucination(n.)-experiencingsomethingthatisnotactuallypresent,oftenasaresultofmentalillnessordruguse

Example:Thepatientreportedseeingandhearingthingsthatnooneelsecould,indicatingpossiblehallucinations.

7.intelligencequotient(IQ)(n.)-ameasureofaperson'sintelligence,typicallydeterminedbystandardizedtests

Example:AlbertEinsteiniswidelyregardedashavinghadahighIQ.

8.memory(n.)-thefacultyofthebrainthatenablestheencoding,storage,andretrievalofinformation

Example:Shehasaphotographicmemoryandcanrecalldetailsfromyearsago.

9.neurology(n.)-thebranchofmedicineorbiologythatdealswiththenervoussystemanditsdisorders

Example:Thepatientwasreferredtoaneurologistforfurtherevaluationofhersymptoms.

10.perception(n.)-thewayinwhichsomethingisregarded,understood,orinterpreted

Example:Ourperceptionoftheworldisinfluencedbyourpastexperiencesandbeliefs.

11.personality(n.)-thecombinationofcharacteristics,qualities,andbehaviorsthatmakeapersonunique

Example:Hehasaveryoutgoingandfriendlypersonality.

12.psychiatry(n.)-themedicalspecialtydevotedtothediagnosis,prevention,study,andtreatmentofmentaldisorders

Example:Thepsychiatristprescribedmedicationtohelpmanagethepatient'sanxiety.

13.psychology(n.)-thescientificstudyofthemindandbehavior

Example:I'mtakingacourseinpsychologytobetterunderstandhumanbehavior.

14.sensation(n.)-aphysicalfeelingorperceptionresultingfromstimulationofthesenses

Example:Thecoldwindagainstmyfacewasarefreshingsensationafterbeingindoorsallday.

15.subconscious(adj.)-existingoroperatinginthemindbeneathorbeyondconsciousness

Example:Dreamsoftenreflectthesubconsciousthoughtsanddesiresofanindividual.

第五单元：Thefuturewewant

1.alternative(adj.)-offeringachoicebetweentwoormorepossibilities;anotheroptionorcourseofaction

Example:Weshouldexplorealternativesourcesofenergytoreduceourrelianceonfossilfuels.

2.climatechange(n.)-long-termchangesintemperature,precipitation,windpatterns,andotheraspectsoftheEarth'sclimatesystem,largelycausedbyhumanactivities

Example:Climatechangeiscausingrisingsealevelsandmorefrequentextremeweatherevents.

3.conservation(n.)-theprotection,preservation,andcarefulmanagementofnaturalresourcesandtheenvironment

Example:Thenationalparkisdedicatedtotheconservationofitsuniquebiodiversity.

4.consumption(n.)-theusingupordepletingofresourcesorgoods;theactofusingsomething

Example:Ourexcessiveconsumptionofsingle-useplasticiscontributingtothepollutionofouroceans.

5.deforestation(n.)-theclearanceorremovalofaforestorstandoftrees,oftenforthepurposeofconvertingthelandtonon-forestuse

Example:Deforestationisamajorcontributortoclimatechangeandhabitatloss.

6.emission(n.)-thereleaseordischargeofsubstancessuchasgases,particles,orradiationintotheatmosphere

Example:Thefactory'semissionsofgreenhousegasescontributetoglobalwarming.

7.endangered(adj.)-atriskofextinctionornolongerexistinginthewild

Example:Thegiantpandaisanendangeredspeciesduetohabitatlossandpoaching.

8.fossilfuel(n.)-anaturalfuelsuchascoal,oil,ornaturalgas,formedfromtheremainsofancientorganisms

Example:Burningfossilfuelsreleasescarbondioxideandcontributestoclimatechange.

9.greenhouseeffect(n.)-theprocessbywhichgreenhousegasestrapheatfromthesunintheEarth'satmosphere,leadingtoariseinglobaltemperatures

Example:Thegreenhouseeffect