2024届陕西省高一试卷10月联考(24-50A)数学
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2024届陕西省高一试卷10月联考(24-50A)数学试卷答案
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9.Whatcanwelearnabouttheman?A.Heneverwenttoschool.B.Hewasn'tgoodatmathC.Heisnotastudent.听第8段材料,回答第10至12题
10.HowlongdidthernanstayinHongKong?A.Foraweek.B.Forhalfamonth.C.Forhalfayear.11.Whydidthemanfailtoreceivethewomnan'scalls?A.Hedidn'thaveatelephone.B.Hechangedhisphonenurnber.C.Hewasdrivingwithhisfriends.12.Whatdoesthernanthinkofhistrip?A.Tiring.BBoring.C.Exciting.听第9段材料,回答第13至16题
13.Wherearethespeakers?A.Inanoffice.B.Inacar.C.Inaclinic.14.Whatdidthernandolastnight?A.Hehadagoodrest.B.HerepairedhisTV.C.Hewenttoahospital.15.What'swrongwiththeman'sfather?A.Hehasaheartproblern.B.Hehasabadcough.C.Hehasaheadache.16.Whatdoesthewornansuggestthernando?A.Takesornernedicine.BDornoreexercise.C.Askforleave.听第0段材料,回答第1?至20题
17.WhatcanwesayaboutRosernary'smother?A.Shewasrentallysick.B.Shewasveryhelpful.C.Shedidloveherdaughter.18.WhatwasRosernary'sfatherdoingthatday?A.Hewaslookingforhermnother.B.Hewaspreparingarnealforhiskids.C.Hewastakinghiswifetothehospital.19.WhathappenedtoRosernary?A.Shelostherparents.B.Shelostherlegs.C.Shelostherhands.20.WhichofthefollowingcanbestdescribeRosernary?A.Talented.BIndependent.C.Beautiful.第二部分阅读(共两节,满分50分】第一节(共15小题;每小题2.5分,满分37.5分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项
4Asaqualifiedteacherofartanddesign,TheresaHarwoodoffersshortonlinecoursesondrawingandpaintingtohelpstudentsbothyoungandolddevelopintoconfidentartists.AcademicdrawingcourseThiscourseisforabsolutebeginnersofanyagewhoarenotsureonwhattodoorhowtouseapencil.Thecoursewillbelimnitedtoonlysixparticipants.5sessions,onceaweek.Startdate:June5Tirne:10:00arn~11:00arnPrice:$380【高三期中考试·英语试卷第2页(共8页)】
分析(1)形如y=Acos(ωx+φ)型函数,其最小正周期T=$\frac{2π}{|ω|}$;
(2)形如y=Asin(ωx+φ)型函数,其最小正周期T=$\frac{2π}{|ω|}$.
解答解:(1)形如y=Acos(ωx+φ)型函数,其最小正周期T=$\frac{2π}{|ω|}$,
所以,对于函数f(x)=cos($\frac{πx}{2}$),ω=$\frac{π}{2}$,
所以f(x)的最小正周期T=$\frac{2π}{\frac{π}{2}}$=4;
(2)形如y=Asin(ωx+φ)型函数,其最小正周期T=$\frac{2π}{|ω|}$,
所以,对于函数f(x)=sin($\frac{π}{6}$-2x).ω=-2,
所以f(x)的最小正周期T=$\frac{2π}{2}$=π;
点评本题主要考查了三角函数周期的求法,主要是y=Acos(ωx+φ)型和y=Asin(ωx+φ)型函数的周期,属于基础题.