step by step 3000 第四册 Unit 4及答案

Unit4partIA Keywords joboffers工作机会increaseupcomingcollegegraduates大学毕业生vocabularyrenege食言 否认snapsb up抢购 KeytoPartIA 1 4 30 hired2 25 18 increase 3 4 5 verygoodnews younger cheaper lay offs jobprospects4 Liberalarts snappedup atoughertime computerscience finance hot ontherise PartIB Keywords gettingjobsboom繁荣thisyeardifferenteconomy经济 节约 理财Vocabulary scrounge搜寻 乞讨 Escalate逐步提高rescind解除 撤回recruit招聘 补充 B EmploymentsituationPeoplegraduatinglastyeargettingjobs six sevendifferentpositionsKerenAloya sbrotherboom didwellSociologymajorsgraduatingthisyearnojob havejoboffersrescindedCompaniesintechsectorslowcollegerecruiting renegeon Intel Dell etc joboffers PartII Keywords readingmathscienceacademicprogress学术进步Vocabulary glean收集decimal小数的fraction分数 部分stall货摊 停止 拖延calculus微积分学 KeytoPartIIA AMatha better add subtract multiply divide than30yearsagob moreskilledinbasicgeometry usingdecimals percentages andfractionsReadinga scoresimprovedb scoresdropped stayedflatScienceslightlybettergrasp havestalled Leadingstatement aredoingbetterthanSupportingdetails 1 takingtoughercoursesa algebrab calculus biologyandchemistry2 Morehomeworknow3 Sexdifference differencebetweenboysandgirlsa gapdisappearingb Inscience 1 13and17 2 Attheageof9 nodifference 1 Anationalreportcardonstudent sacademicprogress 2 Theymayhavetroublelocatingandidentifyingfactsfromstoriesorsummarizingandexplainingwhattheyread 3 a newfourthgradereadingscoresb astatebystatebreakdownofmathscoresc thefirstbatchofsciencescores PartIIB vocabularysnob虚价craftsman工匠decent正派的promotion提升 晋升humble谦卑的 低下的reject次品oblige迫使 强制 KeytoB B1 1 akindofsnobvalue2 haveapieceofpaper3 obtainacertificateoradiplomafirst4 relativelyunimportant5 getadegree6 apropereducation7 allowpeopletobecomeexpert obligethemtofollowasetcourseofinstructionB2Majorviewpoints 1 4 7Supportingideasandfacts 2 3 5 6 PartIII keywordscollegeaboltoutoftheblue晴天霹雳stumbled踌躇 蹒跚topofmyclasseditorialwriter社论作者chancebigpartvocabularyaboltofthebluehangout巢穴 故意泄露intercede调解 调停consititution宪法 KeytoPartIII A 1 college outof2 hadn tbeen3 hangingout4 gotocollege5 graduation theroad6 confident radical7 happened out nowhere God8 minds9 random part life B 1 F2 T3 F4 F5 F6 F7 T8 T C inhighschool Chesterhangout workinChester astrangerhehadn ttakenth