2025年act考試題型及答案本文借鑒了近年相關經(jīng)典試題創(chuàng)作而成，力求幫助考生深入理解測試題型，掌握答題技巧，提升應試能力。ACT考試概述ACT（AmericanCollegeTesting）是美國大學入學標準化考試之一，主要測試學生的學術能力，包括英語、數(shù)學、科學推理和閱讀四個部分?？荚嚳倳r長為2小時55分鐘，其中包括2次10分鐘的中場休息。以下是ACT考試的詳細題型及答案解析。---第一部分：英語（English）題型介紹：英語部分共有75道選擇題，考試時間為45分鐘。題目主要考察語法、句法、風格和語篇連貫性。題目示例：1.語法題：-原句：Thecommittee,includingthechairperson,aremeetingtomorrow.-選項：A.aremeetingB.ismeetingC.hasmetD.havemetE.meet-答案：B2.句法題：-原句：Despitetheheavyrain,theycontinuetheirjourney.-選項：A.continuetheirjourneyB.tocontinuetheirjourneyC.continuedtheirjourneyD.continuingtheirjourneyE.willcontinuetheirjourney-答案：B3.風格題：-原句：Itisimportantforthestudentstostudyhardinordertopasstheexam.-選項：A.Itisimportantforthestudentstostudyhardinordertopasstheexam.B.Thestudentsneedtostudyhardinordertopasstheexam.C.Topasstheexam,thestudentsmuststudyhard.D.Studyinghardisimportantforthestudentstopasstheexam.E.Itisimperativethatthestudentsstudyhardtopasstheexam.-答案：C4.語篇連貫性：-原句：Thecompanyannouncedanewproductlaunch.Theproductisexpectedtobeabigsuccess.-選項：A.Thecompanyannouncedanewproductlaunch.Theproductisexpectedtobeabigsuccess.B.Thecompanyannouncedanewproductlaunch;theproductisexpectedtobeabigsuccess.C.Thecompanyannouncedanewproductlaunch,andtheproductisexpectedtobeabigsuccess.D.Thecompanyannouncedanewproductlaunch.However,theproductisexpectedtobeabigsuccess.E.Thecompanyannouncedanewproductlaunch,whichisexpectedtobeabigsuccess.-答案：C---第二部分：數(shù)學（Math）題型介紹：數(shù)學部分共有60道選擇題，考試時間為60分鐘。題目涵蓋代數(shù)、幾何、三角學、數(shù)據(jù)分析等。題目示例：1.代數(shù)題：-題目：If3x+4=19,whatisthevalueofx?-選項：A.5B.6C.7D.8E.9-答案：C2.幾何題：-題目：Atrianglehastwosidesoflengths5cmand7cm.Thethirdsideis8cm.Whatistheperimeterofthetriangle?-選項：A.20cmB.21cmC.22cmD.23cmE.24cm-答案：B3.三角學題：-題目：Inarighttriangle,thesineofangleAis0.6.WhatisthecosineofangleA?-選項：A.0.4B.0.8C.1.2D.1.6E.2.0-答案：A4.數(shù)據(jù)分析題：-題目：Thefollowingdatarepresentsthetestscoresofaclass:85,90,92,88,95,87.Whatisthemedianscore?-選項：A.87B.88C.90D.92E.95-答案：B---第三部分：科學推理（ScienceReasoning）題型介紹：科學推理部分共有40道選擇題，考試時間為35分鐘。題目主要考察學生從科學數(shù)據(jù)中提取信息、進行推理和分析的能力。題目示例：1.實驗數(shù)據(jù)分析：-題目：Thefollowingtableshowsthegrowthofbacteriaovertime:|Time(hours)|BacteriaCount||-------------|----------------||0|100||2|200||4|400||6|800|-Whichofthefollowingequationsbestdescribesthegrowthofbacteria?-選項：A.BacteriaCount=1002^TimeB.BacteriaCount=100Time^2C.BacteriaCount=100TimeD.BacteriaCount=1002^Time/2E.BacteriaCount=1002^(Time/2)-答案：E2.圖表分析：-題目：Thefollowinggraphshowsthetemperaturechangeoveraday:-Whichofthefollowingtimesshowsthehighesttemperature?-選項：A.6:00AMB.12:00PMC.3:00PMD.6:00PME.9:00PM-答案：B3.實驗設計：-題目：Anexperimentisconductedtotesttheeffectofdifferentfertilizersonplantgrowth.Whichofthefollowingisavalidcontrolgroup?-選項：A.PlantsgivennofertilizerB.PlantsgivenanewtypeoffertilizerC.PlantsgivenastandardfertilizerD.PlantsgrowninadifferentenvironmentE.Plantsgrownbyadifferentresearcher-答案：A4.數(shù)據(jù)分析：-題目：Thefollowingdatashowstheaveragetestscoresoftwoclasses:-ClassA:85,88,90,92,87-ClassB:80,82,85,88,90-Whichclasshasahigherstandarddeviation?-選項：A.ClassAB.ClassBC.BothclasseshavethesamestandarddeviationD.CannotbedeterminedE.Thedataisinsufficient-答案：B---第四部分：閱讀（Reading）題型介紹：閱讀部分共有40道選擇題，考試時間為35分鐘。題目主要考察學生從文章中提取信息、理解主旨、進行推理和分析的能力。題目示例：1.主旨題：-題目：Whatisthemainideaofthepassage?-選項：A.TheimportanceofenvironmentalconservationB.TheimpactofpollutiononwildlifeC.TheroleofgovernmentinenvironmentalpoliciesD.ThebenefitsofrenewableenergysourcesE.Thechallengesofglobalwarming-答案：A2.細節(jié)題：-題目：Accordingtothepassage,whatistheprimarycauseofpollution?-選項：A.IndustrialwasteB.VehicleemissionsC.AgriculturalpracticesD.AlloftheaboveE.Noneoftheabove-答案：D3.推理題：-題目：Whatcanbeinferredfromthepassageaboutthefutureofenvironmentalpolicies?-選項：A.TheywillbecomemorestringentB.TheywillbecomelessstringentC.TheywillremainunchangedD.TheywillfocusmoreontechnologyE.Theywillfocusmoreonpublicawareness-答案：A4.作者意圖題：-題目：Whydoestheauthorincludetheexampleofthewildlifeaffectedbypollution?-選項：A.ToprovideevidenceforthemainideaB.TointroduceanewtopicC.ToentertainthereaderD.TocriticizethegovernmentE.Topromoterenewableenergy-答案：A---答案和解析英語（English）1.答案：B-解析：Thecommitteeisasingleentity,soitshouldbefollowedby"ismeeting."2.答案：B-解析：Thephrase"tocontinuetheirjourney"correctlymodifies"theycontinuetheirjourney."3.答案：C-解析：Thesentencecanbemademoreconciseanddirectbyusing"Topasstheexam,thestudentsmuststudyhard."4.答案：C-解析：Theconjunction"and"correctlyconnectsthetwoindependentclauses.數(shù)學（Math）1.答案：C-解析：3x+4=19→3x=15→x=52.答案：B-解析：Perimeter=5+7+8=20cm3.答案：A-解析：Inarighttriangle,sin(A)=opposite/hypotenuseandcos(A)=adjacent/hypotenuse.Ifsin(A)=0.6,thencos(A)=√(1-sin^2(A))=√(1-0.36)=√0.64=0.84.答案：B-解析：Sortedscores:87,88,90,92,95.Themedianisthemiddlescore,whichis88.科學推理（ScienceReasoning）1.答案：E-解析：Thebacteriacountdoublesevery2hours,sotheequationisBacteriaCount=1002^(Time/2)2.答案：B-解析：Thegraphshowsthehighesttemperatureat12:00PM.3.答案：A-解析：Thecontrolgroupshouldnotreceiveanytreatment,soplantsgivennofertilizerarethevalidcontrolgroup.4.答案：B-解析：ClassBhasahigherstandarddeviationbecausethescoresaremorespreadout.閱讀（Reading）1.答案：A-解析：Themainideaistheimportanceofenvironmentalconservation.2.答案：D-解析：Thepassagementionsindustrialwaste,vehicleemissions,andagriculturalpracti