4000词精品教学课件 Book 4UNIT16.pptx

4000ESSENTIALEnglishwordsBOOK4Unit16

wordlist

[?s?d]n.Anacidisachemicalthatcanburnordissolveothersubstances.Inchemistryclass,wemixedtwoacidstogetherandwatchedthereactionacid

[?d?m?n??stre??(?)n]n.Anadministrationisthegroupofpeoplewhomanageacompanyororganization.Shehopedshecouldbepromotedtoajobinadministration.administration

[?d?m?n?str?t?v]adj.Administrativedescribesanythingrelatedtomanagingacompanyororganization.Iworkasanadministrativeassistanttotheownerofthecompany..administrative

[?ba???tek?n?l?d?i]n.Biotechnologyistheuseoflivingparts,suchascells,inindustryandtechnology.Researchersatthebiotechnologycompanyusebacteriatomakemedicine.biotechnology

[k??lest?r?l/]n.Cholesterolisasubstanceinfat,tissues,andbloodofallanimals.Whenpeoplehavetoomuchcholesterol,theyareatahighriskforheartproblems.cholesterol

[k????l??(?)n]n.Acoalitionisagroupofpeopleororganizationsworkingforacommonpurpose.Thecompaniesformedacoalitiontomaketradelessexpensive.coalition

[d??sept?v]adj.Whensomethingisdeceptive,itencouragesonetobelievesomethingthatisfalse.Thescary-lookingmansappearanceisdeceptive;heisactuallyverynice.deceptive

[?da???bi?ti?z]v.Diabetesisamedicalconditioninwhichapersonsbodycannotcontrolthelevelofsugarintheirblood.Overweightpeoplearemorelkelytosufferfromdiabetesthanslimmerones.diabetes

[??l?m?ne?t]v.Toeliminatesomethingthatisunwantedmeanstocompletelyremoveit.Wearingaseatbelteliminatessomeofthedangersofdrivingacar.eliminate

[??r???(?)n]n.Erosionisthedestructionofrockorsoilduetoflowingwaterorweather.Canyonsareformedbecauseriversoffast-movingwatercausederosion.erosion

[?eθ?ks]n.Ethicsaremoralbeliefsorrulesaboutrightorwrong.Theactofstealingcertainlydoesntgoagainstsomepe