5-5i=1-i,所以之的虚部为-1.故选C5）-22+in202318566解析：复数之=(1一i)(a+i)=a+i2.A由复数2一bi(b∈R)的实部与虚部之和为0，得2一b=0,即b=2.故选A.=cos(37x+君）+isin(37x+ai+1=(1+a)+(1-a)i,.x的实部与虚部相等，1十a=1-a,又a∈R,3.B复数x=2i一1对应的点为（一1,2），）=os(+)）+isin(x+则a=0,.|1-a+i|=1+i|=位于第二象限.故选B4.D因为i是方程x2一2x一Q=0的根，1+1=√2所以a=x2-2x=-2i=-1-2i.2i复数(cos石+19.-1+i故选D.解析：设复数之=a+bi(a,b∈R),则5.A因为之=a一2i,所以乏=a+2i,则由在复面内所对应的点的|之|=√a2+b=2,所以a2+b2=z+b2+4=0得：a-2i+b(a+2i)+4=坐标为(，-日）此点位于第三2,又z2=(a+bi)2=a2-b+2abi,且0,即(a+4+ab)+(2b一2)i=0,故z2的虚部为一2，则2ab=一2，即侣+000得台二12故象限.故选C.ab=一1，因为之所对应的点A在第二2b-2=0,21-√3i象限，即点A(a,b)在第二象限，所以选A.14.BC由题意得之=21a2+b2=2,6.B在复面内，之1=一2十i所对应的1+√5ia<0,b>0,故〈ab=-1,解得点为←210：=号=二i0二+D=一？，故复数之在复面内对应13a<0,b>0,-21+2i,其对应的点坐标为(1,2)，所以复的点为（份一）在第四象限，故Aa=1故之=-1+ib=1,数之1和之2所对应的两点之间的距离为√(-2-1)+(1-2)7=√10.故错误：易知复量：的宾部为子，故B正选B.解析：因为|之2|=4，所以之2之2=16，7.A设x=a十bi(a,b∈R),则乏=a确；因为之z=之|2=1，所以乏=.1y则16一之1之2=之2之2一之1之2=之2（22bi,则之·乏=a2+b2,命题p:|之|=√2故C正确；因为之2=之1)，故1卡之2，所以21一之2等价于|之|=√a2+b=√2，即a2+16-212262=2,命题q:1之·乏-1|=1等价于13之1一之2之1-之21|a2+b2-1|=1,即a2+b2-1=-12,所以复数之2的虚部为}2222一之122之2|X22-211或a2+b2-1=1,即a2+b2=2或a2+1b2=0,p是q成立的充分不必要条,故D错误.故选BC√3一4122件，故选A.8,B'因为（仁1+2Dx=y-1-6i,所以15，BD复数：=-1十22(-1-i)一静能力提升练睡一2色=61解好=3所以1.B复数1+2i,一2+i,0所对应的点分y=4,-1-i,则|之|=√2，z2=2i,乏=别是A(1,2),B(-2,1),O(0,0),由题一1+i,其中复数之的虚部为一1.故选yi1=|-3-4i1=√(-3)2+(-4)7=5.意可知OA⊥OB,且OA=OB,正方形BD.故选B.以OA,OB为邻边，设第4个点D(x，16BDA中，今：-号+9则11-y),所以AB=(-3,-1),OD=(x,y),OA=(1,2),Bi=(x+2,y-1),1.1,故A错误；B中，若点Z的坐标为11=2=2故选A(一3,2)，则z=一3+2i,所以(AB.OD =0,则10.A设之=a+bi(a,b∈R),则乏=a(-3+2i)2+(-3+2i)p十q=0,整理OA∥BDbi,..2z-=2(a+bi)-(a-bi)=得5+q-3p+(2p-12)i=0,所以-3x-y=0,→1X(y-1)=2×(x+2),解得a+36i=1+3i,d83解得5+g3p=0·解得(p=6:2p-12=0,9=13,所以工=。1“第4个顶点对应的复数份二-1+i成递Ap十q=19,故B正确；C中，易知之的虚：y=3,部为一2，故C错误；D中，设之=x十x=-1十3i.故选B.yi(x,y∈R),则|z-2i|=|x+(y一2.C因为复数a2-4+(a一2)i是纯虚L.B2=,新=(5+3i)1+D(1-i)(1+i)2)i|=√Jx2+(y-2)2,所以1≤数，所以a2一4=0且a≠2，所以a=2+81=1十4i2的虚部为42的共x2+(y-2)2≤2，圆x2+(y-2)2=-2.故选C.22的面积为2π，圆x2十(y-2)2=1的3.Ba+3i=一1十bi,而a,b为实数，故轭复数为1一4i,|之=√17，之在复面积为π，所以点Z的集合所构成的图：a=一1，b=3,故选B.面内对应的点在第一象限.故选B.形的面积为2π一π=π，故D正确.故选4.B由题意有之=3-3-4(-D12.C设之=a+bi(a,b∈R),则x2=BD.ii·(-i)7a2-62+2abi=4+6i,可得17.一巨=-4-3i,故|之|=√(-4)2+(-3)22=5.故选B.口-6=子解得我i(1-i)3或解析：因为之=1中一1+D1-D5.B=1-i是-2i=名-2i-(2ab=6,b=2十合所以复数：在复西2(1+i)a=-2,22(1-i)(1+i)-2i=21+D-21=1-2e3a<0,b<0a-内对应的点的金标为（合，》，故位于i,故选B.2i2i×(1+i)63,z=二2一21，·2第一象限.因为之-i=2十i-i=6.A由题意可知二=-D1十)-2+2i3合所以1：---12-1+i所以复数名的-2+2i故选C,部为1.故选A.13.C由撩莫帝公式知，(cos吾+√份》+()-号汉A由题湾4：-三=}芒203音一害参考答案

大一轮复学案数学第二章函数第一节函数的概念及其表示②答案见513页基础达标练8函数f代)=g+1)的定义域是x+21(202山东济南高三模拟)函数)=16-的定义9.已知函数f(x)=2+2x-3,x≤0则f(x)<0的解集域是-2+lnx,x>0,为A.[-4,0)U(0,4]B.[-4,4]C.(-0,-4]U[4,+∞)D.[-4,0)U[4,+∞)10.(2023江苏盐城高三模拟)设函数f(x)的定义域为2.下列不能表示函数y=f(x)的图象的是R,满足fx+1)=2f(x),且当x∈(0,1]时，f(x)=ty2,则(侣)的值为2+1,x≤1，11.设函数f(x)=若ff(1))>4,则实数(10g3x+3°，x>1,Ba的取值范围是2>能力强化练12.多选题(2022湖北武汉高三模拟)已知函数f(x)=(x+2,x≤-1，关于函数f(x)的结论正确的是（x2,-11,A.(1,7)B.(0,7)1,则fx)=C.(1,8)D.(-∞，7)aB(x≠1)CdD.x2(x≠1)素养综合练6.已知函数f(x)的定义域为[-2,1]，则函数y=15.(2023湖北武汉高三模拟)若函数f(x)的定义域为f3x-2)的定义域为R,对任意的x1,x2,存在区间D,当x1-x2eD时，都()1g(1-x)有f(x1)-f(x2)∈D,则称函数f(x)是关于D关联A.[0,1]B.[0,1)C.(0,1]D.(0,1)的.已知函数f(x)是关于{4}关联的，且当x∈[-4，7.(2023山东济宁高三模拟)已知函数f(x)=0)时，f(x)=x2+6x.则：2,x≤0，则f2024)=—①当x∈[0,4)时，函数f(x)的值域为(x-5),x>0,②不等式0

(2y=100(+）≥100x2√-10a(元，ax十b,a>0,故f(f(x)=a(ax+b)+b=a2x+ab十b=16x十5，a2=16,ab十b=5,解得a=4,b=1或a=-4,当=号时，得=2wa,因为0<≤0，6、5(不合题意，舍去)，因此f(x)=4x十1.故选D,所以当00，。解得>0且工≠1，所以函f(0)-0+2=1×1-1-0+2=2.令y=0,则f(1)=x-1≠0，f(x)f(0)-f(0)-x+2,将f(0)=1,f(1)=2代入，数的定义域为(0,1)U(1,十∞).故选B.可得f(x)=1+x,所以f(2023)=2024.4.A解析：函数y=f(x+1)的值域为[一1,1]，由于函数2(一12,0解析：因为函数fx)=a的定义中的自变量取定义域内的任意数时，函数的值域都为[-1,1],故函数y=f(3x+2)的值域为[-1,1].故域是R,所以ax2十ax一3≠0对任意实数x都成立.当选Aa=0时，显然成立；当a≠0时，只需△=a2+12a<0,解5.A解析：令2x一1=3，得x=2,则f(3)=22-3=1.故得-12

请阅读下面短文，在所给的每个空格中填入五要求：一个形式正确、意义相符的单词。1.注意观察地图，包含所给信息，可适当发挥；Hi,my name is Winter.I'm ten years old and I短(66)live2.条理清晰，语句通顺，语法正确，书写规范；in a town in australia.Here3.60词左右（开头和结尾已给出，不计入总词数）。(67)isa picture of my pet dog,Jax.Jax is读写Dear Anna.填black and white.Look!What are those(68)behind him in the picture?They are twoWelcome to live with us!Now I want to tell yousquirrel sculptures(松鼠雕像).They are in the合about my neighborhood.In it,(69)colorof orange and they look cute.I hope you have a nice life here.See you next weekThese squirrel sculptures are in a street park inYours,my town.The park is not(70)far from myLi Huaneighborhood.So I can go to the park easily.®五It(71)just /only takes about ten minutes to六【写作指导】walk there.My parents and I enjoy本篇写作要求写一封邮件，介绍街区情况、上学路(72)_visiting the park.On weekends,we often线以及自己最喜欢的地方。写作时，先观察地图，go there to see the beautiful trees and sculptures.确定建筑物，再确定上学路线。文填空And Jax often goes there with(73)us He写☆主题：人与社会之社会服务与人际沟通☆子主题：社区生活likes running around.All of us always have great☆时态：一般现在时(74)fun in the park.合☆行文布局：To bring fun to people,the government(政府)①介绍街区情况often (75)spends some money making animalThere is a supermarket,a restaurant,a school,asculptures in the park.With them,the park islibrary,a park and a cinema in my neighborhood.popular(受欢迎的)now.It's my favorite place.gMy home is on Moon Road.六A.回答问题②介绍去学校的路线和最喜欢的地方→To get to school..76.Where is the Home Library?walk along Moon Road and turn left into PopIt is in the north of the neighborhood读Street写turn right at the second crossing77.How long is the library open every day?My favorite place is ..◆It'son.Road.For 11 hours.综合◆I always go there on,③结束语See you next week.78.What does Henry think of watching fish swim?☆必备句型：It's interesting.*The school is not far from ...so we can get thereeasily.*I often spend time in the library on weekends.*It just takes ..minutes to walk to ..from...六六【参考范文】79.What is across from Building E in theDear Anna,neighborhood?Welcome to live with us!Now I want to tell youThe dining hall.about my neighborhood.In it,there is a写综合supermarket,a restaurant,a school,a library,apark and a cinema.My home is on Moon Road.It80.Why does Henry enjoy living in the合is not far from our school,so we can get thereneighborhood?easily.We just need to walk along Moon Road andBecause it makes his life easy.turn left.Then we are on Pop Street.We go alongit and turn right at the second crossing.Then wecan see our school on our left.六B.书面表达81.假设你是李华，是某中学七年级的学生。来自六美国的交换生Anna将会寄宿在你家，下周你家将My favorite place is the library on Apple Road.I读like to spend time there on weekends.It just迎接Anna的到来。请你提前为Anna提供一张街区写takes five minutes to walk there from my home.I地图，并写一封邮件，向她介绍街区的情况及上can take you to visit it after you come here.学的路线，并推荐一个你最喜欢的地方Li Hua's homeI hope you have a nice life here.See you next合合week.Yours,Li HuaThe gate9

散学高三第一轮复周涮卷札记11.(18分)苏迪曼杯，又称世界羽毛球混合团体锦标赛，1989年开始举办，两年一届，是代表羽毛球整体水的最重要的世界大赛，中国曾12次夺冠.2023年5月14日苏迪曼杯在江苏苏州举行.某单位为提高员工身体素质，培养热爱羽毛球的兴趣，组建了羽毛球协会.该协会为了解员工喜欢羽毛球是否与性别有关，随机抽取了男、女员工各100名进行调查，统计得出的数据如下表：是否爱好羽毛球员工性别合计喜欢羽毛球不喜欢羽毛球男员工50女员工25合计(1)根据所给数据完成上表，试根据小概率值α=0.001的独立性检验分析该单位的员工喜欢羽毛球与性别是否有关(2)该协会的教练从喜欢羽毛球的员工中抽取了2名男员工和1名女员工进行扣球测试，已知男员工扣球成功的概率为子，女员工扣球成功的概率为}，每人测试一次，假设各人扣球相互独立，求3人扣球成功的总次数的分布列和数学期望n(ad-bc)?附：x=a+bc+a)a+a)6+Da+b+c+d=n0.0500.0100.001Ta3.8416.63510.828【解题分析】(1)因为随机抽取了男、女员工各100名进行调查，男员工中不喜欢羽毛球的有50人，女员工中喜欢篮球的有25人，所以男员工中喜欢羽毛球的有50人，女员工中不喜欢羽毛球的有75人，得到2×2列联表如下：是否爱好羽毛球员工性别合计喜欢羽毛球不喜欢羽毛球男员工5050100女员工2575100合计75125200零假设为H:该单位员工喜欢羽毛球与性别无关，损据列联表中的数指，经计算，得到X=2050757X25)2≈13.3>10.828=m，100×100×75×125根据小概率值a-0.001的独立性检验，我们推断H。不成立，即认为该单位员工喜欢羽毛球与性别有关.(2)3人扣球成功的总次数的所有可能取值为0,1,2,3.P2)=×是×+（x号-P3)-Px-.214的分布列如下：0123P员品合品:“6的数￥期塑E()=0X7+1×8+2X号+3×最-号、112【24G3ZCJ(新高考)-数学-XJB-必考-QG】扫码使用夸克扫描王

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XIN GAO KAO FANG AN|第四单=,湖陆风转变如·讲三步一体高效训练札记10.(18分)灯某游乐场的摩天轮示意图如图所示，已知该摩天轮的半径为30米，轮上最低点与地面的距离为2米，沿逆时针方向匀速旋转，旋转一周所需时间T=24分钟，在圆周上均匀分布12个座舱，标号分别为1~12（可视为点）.在旋转过程中，座舱与地面的距离h()与时间1的函数关系式为h(0)Asin十9)十b(A>0,。>0,p<受，≥0)，现从图示位置，即1号座舱位于圆周最右端时开始计时，旋转时间为t分钟。(1)求A,w,p,b的值；(2)记1号座舱与5号座舱的高度分别为H1,H,米，在摩天轮旋转一周的过程中，求H,一H的最大值及H,一H2取得最大值时t的值.解析：(1)由摩天轮的半径为30米，轮上最低点与地面的距离为2米，可得A+6=62,一A+b=2,解得A=30,b=32,则h()=30sin(ut+p)+32(w>0,pl<5).又摩天轮旋转-周所需时间T=24分钟，所以T-2红=24，得w=吾当1号座轮位于图周最右端时开始计时，即当t=0时，h(t)=32,可得p=0.(2)由(1)知h()=30sin+32(>0),依题意得H1=30sin+32,H,=30sin是(+8)+32，|H-H,1=1(30sin+32)-[30sin最+8)+32]1=130sim一30sin(+7)1=301号s如-号as=3051m(音)1令适1-吾=吾+kx,k∈Z.解得1=8+12k(k∈刀，由0区≤24，可得1=8或1=20，即当1=8或1=20时，H,H2取得最大值30√3.70【24新教材·ZC·数学-RA-必修第一册-G DONG)】

袜子皮皮》系列小说。第二节主题语境：人与社会一一艺术本文是说明文。文章介绍了三个户外画素描的技巧。36.E。设空处上文介绍户外画素描的好处，下文具体介绍户外画素描的技巧。由此可知，设空处所填内容应能承上启下。E项“这里有三个技巧可以提高你在户外画素描的技能”符合语境37.F。设空处下一句介绍了户外画素描后的一个结果，“你忘记了时间，当你回到家时，你发现自己全身通红”。由此可推知，设空处所填内容应指出“让你变得全身通红”的条件。F项中的sunny符合语境。38.D。设空处下一句“规划画素描的路线可以确保你在完美的时间到达目的地一一尤其是当你的目标是看日出或日落”介绍了规划画素描路线的好处。由此可推知，设空处应该提出“规划画素描路线”的内容。D项“提前计划好你想去的地方以及如何到达那里”符合语境。39.B。设空处下一句提到drawing every single person you see,由此可推知，设空处应填入能引出every single person you see的内容。B项“假设你发现街上有一大群人”符合语境。alarge crowd of people与every single person构成同现。40.G。设空处下一句中提到He,由此可知，设空处应填入能表明He指什么的内容，所有选项中只有G项提到男性人物，符合语境。【词汇链接】beat yourself up(the last para.:过分自责【知识链接】《夜晚露天咖啡座》(Caf色Terrace at Night)是梵高星光三部曲的第一部，创作于I888年，现收藏于克罗勒·穆勒博物馆。画面描绘了在法国南部炎热的夏夜，阿尔勒一家咖啡馆的室外景色。语言运用第一节主题语境：人与社会一一人际沟通本文是记叙文。文章讲述了“我”鼓励80岁的Freed医生将自已的经验写成书，继续为社区服务的故事。41.D。根据Dr.Freed was a doctor in our local community可知，Freed是社区医生，为患者上门看病。house cal‖意为“（医生）出诊，上门看病”。42.A。根s据You'd see the lights on,late at night when somebody had an及He was always therefor his patients可知，当某人在深夜有紧急情况时，你会看到他那里的灯亮着。他总是在那儿为病人服务。43.C。根据No more bustling about及He was laid up in a wheelchair可知，他再也不忙碌了，生活发生了变化。tun意为“（突如其来或意外的）变化，转变”，符合语境。44.D。45.B。根据wheelchair及lasting post-surgical pain可推断，摔倒后，Freed只能坐轮椅，这引发了他忧郁的情绪。46.C。根据He came to see me to...what he termed his“uncertain future..”可知，他来和“我”探讨他的不确定的未来。explore意为“探讨”，符合语境。47.D。根据上文中的He was always there for his patients可知，Freed非常尽责，故此处是说医学是他的生命。48.C。根据He came to see me to.what he termed his“uncertain future.”及The key,,lthought可推断，“我”在帮助Freed分析问题，concern意为“职责”，符合语境。

则不等式(a-4b).x+2a-36>0.可化为-g6x-号b>0.21.【解折1(1)今y-0.即：-六2-0.则x-0点因为0.可得-是-号<0解得>一昌m00所以名士”十+即不等式(a-4的)x+2a-36>0的解集为(-昌，+).故2√0·0+2-2g+2.因为当>0时+士-（压-√任）+2≥2，别x答案为：(-是，+)当且当品-”印m-2。一2一后时等等成所以员十号的最小值为2肩+2所以这种地弹的最大射框为10千来16.4【解析】因为ab=2a+b+c,2a+b=2ab,所以--9【解析1)由随意如，当m0时，2（万件(2)设发射点与飞行物之间的水距离为a千水，集使地弹则2一4一，解得=2，六x一4手1能中飞行物a-岩。一2，一20+64=0.又2ab=2a+b且2a+b>2√2a·b,所以每件产品的销售价格为（无据题意，上迷关于大的方祖有五数解，国为女十一驾>0，所以2ab≥2√2a·b,解得ab>2,当且仅当2a=b=2时等太一公4>0，所以只要方程有实标时必有正数解号成立，2020年的利网y-16r义士e-8-16-m-9616m1-m(m≥0)由△-400a-4a2(d+64)≥0，得d<36,即a<6驾合0≥2知c有流大值故答所以发射点与飞行物之间的水距离不能规过6千来(2)当m≥0时，m+1>0,“昌十(m+1空2二8，新收当异m+1即m22.【解析】1)：对于面直角坐标系的第一象限内的任意两点作如下定义：号>后，那么你点(a,b)是点《心，d)的上位为：41⑦【解析】(1)由x2-(3m-2)x+2m2--3=0得，=3时等号成立.点”，同时点《c,d)是点（a,b)的-下位点”[x-(m+1D][x-(2m-3)1=0,六-8+37-29.即m-3万元时一29（万元.点(3,5)的一个“上位点”的坐标为(34)，一个“下位点的坐标为(3,7).（答案不唯一)所以x≠m+1或x=2m-3.共药家220年的促情变用说入8方无时厂家的利两最因为命题力为真命题，所以-5adc<3.[-1+2=-。,b(bid)所以实数m的取值范国为m一13.(0(2)由(1)得，当x=一1时，M(x)有最小值，即M(x)m=0,令m=2018.利品<<2器2020所以-1和号是方程ar2+br-2a十5=0的两个根，0≤2.R,使得M)og号1a-b-2a+5=0,所以a+一2a+5=0解得/a=3,只需Mx)=0<1og4张-司即可，小当m≤4038时，n一2>≥”一2，所以k=n一11b=2.2k一1.log41≤1og+R+i，即n-2090>长-解得2019<<2020，这与n为正整数矛盾.得故当n≤4038时，k不存在.{-1

主题语境：人与自我—生活本文是应用文。文章为适合青少年参加的四个活动。21.D。理解具体信息。根据题干中的Jonathan Ogeleza可定位到文中的r.KnicksBasketball Clinic部分。根据其中的This instructional basketball clinic.through aseries of training可知，该项目能帮助孩子们精进球技。22.A。理解具体信息。根据题干中的word games和Al Oerter Recreation Center可定位到文中的TEEN Word Game Hour部分。根据其中的4：30p.m.-530p.m.可知，该活动举行的时间在下午4：30至5：30。23.D。推断。根据Share,Grow and Give on Martin Luther King Jr.Day部分中的Keeping with the essence of Martin Luther King Jr.Day being a day of service,therewill also be an opportunity to keep our park clean and beautiful,Martin LutherKing Jr.Day的本质是服务，该活动将会给参与者提供打扫公园的机会，鼓励他们参与志愿服务活动。B篇主题语境：人与社会—艺术本文是记叙文。文章主要介绍了毕加索多变的画风。24.A。理解具体信息。根据第二段中的they still criticized it as being too different可知，学校老师不喜欢毕加索的画画风格。25.D。理解主旨要义。根据第三段中的an important development in his own stylecame along及This is known as his"Blue Period.”可知，该段介绍了毕加索的蓝色时期是如何形成的。26.A.推断。根据第四段中的his painting style changed again when he fell in love with

第6期参考答案情境导入：C处与灯塔A的距离是25海里因为DE垂直分AC,所以AD=CD.所以∠DAC=∠C.第7课时等腰三角形的性质所以∠ADB=∠DAC+∠C=2∠C.自主学：1.轴对称等边对等角70又因为∠B=2∠C,所以∠ADB=∠B.所以AB=AD.2.底边上的高底边上的中线所以AB=CD.3.30°90°相等60°每条边上的中线（或每条边上第10课时线段的垂直分线(2)的高或每个内角的分线)3即学即练：1.C2.D课堂探究：例1D例2403.(1)90(2)=即学即练：1.D2.C3.C4.155.2或3或44.解：如图，连接MN,作线段MN的垂直分线L,交直线6.解：因为AB=BD,∠ABD=20°，所以∠ADB=80°.因为BD=:AB于点C,则当汽车行驶到点C的位置时，与村庄M,N的距离DC,所以∠CBD=40°.因为AE∥BD,所以∠E=∠CBD=40°.相等.第8课时等腰三角形的判定自主学：1.相等△ABC,△ABD,△BCD2.6课堂探究：例1G例22即学即练：1.B2.C3.AC=BC4.证明：因为在△ABC中，AB=AC,∠BAC=120°，所以∠B=∠C=30°.因为AD⊥AB,AE⊥AC,所以∠ADE=90°-∠B=60°，三角形(2.3~2.4)同步诊断∠AED=90°-∠C=60°.所以△ADE是等边三角形一、选择题（每小题4分，共32分）第9课时线段的垂直分线(1)1.B2.A3.D4.D5.B6.A7.C8.C自主学：A二、填空题（每小题4分，共24分）9.等边10.80°11.4812.1113.50°14.160°课堂探究：B三、解答题（共44分）即学即练：1.C2.D3.A4.65.1156.解：AB=CD.15.8分解：因为L10B=40,0C=0D,所L0CD=∠0DC=×理由：连接AD(180°-40°)=70°.因为0D=DE,所以∠0ED=∠A0B=40°.所以∠0DE=

20.(y★)（本小题满分12分）21.(★★★)（本巳知函数fx)=ax2-xlnx.已知函数f0若函数f(x)在(0，十∞)上单调递增，求实数a的取值范围；(1)若a=0取(2若a=e,证明：当x>0时，f(x)

七年级期中教学质量检测数学参考答案1.B2.A3.C4.C5.C6.B7.D8.D9.<10.311.13.2612.1313.014.解：原式=16-6-8-12…2分=10一(8十12)…:…3分=10-204分=10.…5分15.解：原式=号×24-号×24+×24……2分=15-12+6…3分=9.…5分16,解：原式=-1-÷×(-8-9)…1分=-1-2×2×(-17)…2分=1十17…4分=16.…5分17.解：原式=6ab-2a2b+4ab2+6ab-6ab-3ab…2分=6ab-6ab-2a2b+6a2b4ab2-3ab2=4a2b十ab.……5分18.解：因为a,b互为倒数(a≠0)，所以ab=1.…1分因为c,d互为相反数，所以c十d=0.…2分因为m是最大的负整数，所以m=一1，…3分所以2ab-m十2023(c十d)=2×1-(-1)十2023X0=3.…5分19.解：(1)因为女孩成年后的身高h=a+，13,小西爸爸身高180cm,妈妈身高163cm,2所以小西同学成年后的身高h=180+163-13_330=165(cm.2答：小西成年后的身高为165cm.…2分(2)因为男孩成年后的身高h=a十13，小轩妈妈身高165cm,小轩爸爸身高176cm,2所以小轩成年后的身高h=176十1,65十13_34-177(cm).…4分2因为177>165，所以小轩更高，小轩比小西高177一165=12(cm).【※七年级数学·参考答案第1页（共3页）※】

Ⅱ.用适当的关系词填空（每空一词）Ⅱ.根据汉语提示，完成下列句子（每空一词）。1.I have found out the reason why Lucy wasl.Find a hobby that doesn't relate to(与...相unhappy.2.A bus took those workers to a village where a)your daily job and you may feel relaxed.man was waiting for them.2.I have a lot of trouble with(在.…方面3.We live in an age when it is much more difficult有很多困难)physics,,so I decide to ask the teacher forto keep secrets.help.4.I hope I can work in a companywhere there is3.This is how we do things here.You'll soonmore room for advancement.get used to(惯)it5.Focus on the ways in which you try to achieve4.She couldn't help but wonder(禁不住好奇)your goals,not on the results you want.what he was thinking.Ⅲ.将下列句子合并为含定语从句的复合句。第1版本期报纸其他版块参考答案1.Do you still remember the day?On that day youTOPIC READINGmet your uncle from America.详情请参1.artworkDo you still remember the day when/on which you2.an initial capital 3.largermet your uncle from America?4.handwriting 5.East Asia答2.I will show you how to get to the store.You can6.the printing press案解7.the Middle Agesbuy what you need in it.I will show you how to get to the store where/in析8.popularLISTENING PRACTICEwhich you can buy what you need.1-5 BCACA6-10 CBBCA11-15ABCAC16-20 BAACB里3.He refused to tell me the reason.He fought with2版Jack this afternoon for this reason.COLLECTIONSHe refused to tell me the reason why/for which he详情请1.refer to2.do businessfought with Jack this afternoon.3.watch Japanese cartoons 4.be widely known for...参4.I have found the book.The names of almost all the5.ups and downs6追溯到.…old movies are mentioned in the book.答7.雕刻符号8.发展成不同的形式I have found the book in which the names of almost案解9.许多种类的.…10.非常重要5.y Tend.gotpay a visit to him11.read the classic works 12.play a role in...析13.a beautiful art form14.civilized societythis Sunday.l5.learn a foreign language 106.不同看法That is my friend to whom I am going to pay a visit17.达到目标18.购物this Sunday.Part 3 Listening and Talking,Reading forWriting Assessing Your Progress19.与某人开玩笑L.根据括号内的汉语提示或首字母写出单词的正确形式。L.Travelling by subway/underground地铁)is the详情请参20.获得高分21.listen to English radio programmesfastest way to get around the city.22.bridge the gap between...and ..2.It was when I got back to my apartment (thatI first saw my new neighbor.答23.give a clear description of the problem3.In his opinion,every student should be given anequal(均等的)chance to take part in the activity.案解24.relate to...25.看到一则广告4.Many workers demanded/requested(要求)that析26.学新语言working conditions should be improved.5.The beauty of Jiuzhaigou is beyond description(27.提高音量容)，and many people at home and abroad are28.从远古时代演变而来attracted by it.是6.The basic vocabularyof a language is thoseINTO THE TEXTSwords that must be learnt.7."Don't leave me alone.I want to go to your详情请参1.to2.were carved3.formscompany with you,"the boy kept begging with4.geographically 5.where6.unitingtears in his eyes.7.an8.written9.is8.Luckily we were very close to a gas station before10.amazingwe ran out of petrolB9.Those who fail the final exams have to resit them1.got2.talking3.theat the beginning of next s emester.4.how5.pronunciation10.As is known to all,there is a generation g ap6.to open7.on/upon8.requestsbetween the young and the old.9.older10.certainly

(在此卷上答题无效)萍乡市2023一2024学年度第一学期期中考试高三数学本浅卷分第1落（选择题）和部川基（非选择题）两部分。第1老1至2页，第川装复4页.满分150分，考试时间120分钟.注意事项：1答卷前，考尘务必将自己的姓名、准考证号等填写在答题考生要认真核对答上粘贴的条形码的“准考证号、姓名”与考生本人的准考证号、姓名是否。致2回答选题时选每小题答案后用B铅笔把答颗时对痛跑莫餐桥号换如需改动，用橡皮然干净，出得选涂其亡答案标号回容非选择题时，用05毫米的照色鱼水金翠笔在答题卡上书写作答、若在试题卷上作答，答题无效：3、考试结束后，监考员将试题卷、答题卡一并收回.第I卷单项选择题：本大题共8小题，每小题5分，共40分.在每小题给出的四个选项中，只有一、一项是符合题目要求的1.如图，全集U=R,集合A=(-2,4),B=(-4,2),下列选项的集合中，包含于图中阴影部分表示的集合为4(-4,-2)©(-2,2)C.(-4,2)D.(-2,4)2.若复数z满足z(2-i)=1+i(其中i为虚数单位)，则z=西2共D.3v2A.10®C.√2533.在△ABC中，B0=3QC,AP+BP=0,则A观-}c+而B.P-24i+!4C34定义在R上的偶函数f()满足：对任意x,x2∈[0，+∞)，有(x2-x)儿f(x)-f小0，且f(4)=0,则不等式(3x-1)f(x)<0的解集是A（g传（4u4)点✉u网5.已知向量a=(-3,-2),6=(-t,),则“1<1或t>2”是“a与i的夹角为钝角”的A.充分不必要条件必要不充分条件C.既不充分也不必要条件D.充要条件6.已知球的表面上有四个点P,A,B,C，∠BAC=120°，则该球的表面积为其中PA1面ABC,P4=2N5,B=4C=2,A.32元B.28元C.27πD)24n一.对于数列{c,定义E,=(a+3a,+…+3a,)为{a}的“优值”，若E=3”,记数列{aBShot on OnePlus高三数学第1页（共4页）江西省，萍乡市2023.11.1519:23

e.g.3.It is not easy for me to learn (learn)math well.4.It is more interesting to live (live)in thecountryside.(C)5.He is very busy these days and he can'tNote:在“Itis+形容词+(for sb.,)tododecidehis grandparents.sth.”句型中，动词不定式作主语0A.how to visite.g.5.Our teacher often asks us to read (read)B.where to visitmore books.C.when to visit6.My mother told me not to swim (swim)in theD.what to visitriver.Note:有些动词后面可以跟动词不定式作宾语补足语。e.g.7.Luke's dream is to be (be)a policeman8.Would you like something to eat (eat)?山，从方框中选择恰当的单词，并用其适当形式完成短文。Note:动词不定式在句子中还可以作表语或定语。they,discuss,village,look,hope,e.g.9.I'm learning how to make_(make)choose,from,try,give,educationdumplings from my father.Four women of the Zhuang ethnic(民族的)10.She was a little afraid and didn't know whatgroup are singing a beautiful song.The song is 1.to say (say).from an old songbook called The PoyaNote:一些动词后面可以跟“疑问词Songbook.The songbook has 81 love songs and is(how、which、what、when、where等)+very important in Poya village,Yunnan.动词不定式”结构作宾语。拓展：they,discuss,village,look,hope,e.g.11.Let the boys come (come)in.I want tochoose,from,try,give,educationask them some questions.The village is home to 312 people and 299 of 2.12.The woman saw the man put (put)athem_are of the Zhuang ethnic group.phone in his bag.The 3.villagers often use special pictures ona cloth to help them remember the songs.58-year-Note:使役动词(make、let、have等)和old Nong Fengmei has a cloth with 81 pictures.感官动词(see、feel、hear、watch、notice"My great-grandmother 4.gave it to my等)后面常跟省略to的动词不定式作宾补。grandma and then she handed it to me,"she said.“I can sing an entire(整个的)song just by5.looking at the pictures.基1选择填空。they,discuss,village,look,hope,choose,from,try,give,education(B)1.Peter,rememberyour ID card toWhen Nong showed the cloth to the government础school tomorrow.(政府)，they thought it was6.educational andA.bringB.to bringtook it very seriously.After a long 7.discussion训C.bringingD.to bringingthey decided to build a learning center in the village.练(C)2.Tom's room was dirty and his parentsIn 2012,they 8.choseNong to teach Poyamade himit.love songs to more people.Nong is 9.trying her best to do the jobA.cleaningB.cleanedwell.Today,more than 20 people in the village canC.cleanD.to cleansing Poya love songs.Nong 10.hopes moreand more people will come to learn the songs.(A)3.I have a lot of homeworkso I can'tSection Bgo to the movies with you.、要点归纳A.to doB.doC.to doingD.doing☆famous adj,著名的；出名的D)4.-I didn't hear you come in.·be famous for..因..而出名一That's good.We triedany noise,·be famous as...作为.而出名because Jack is sleeping.☆become v.开始变得；变成A.to makeB.not make后面可以跟形容词或名词C.to makingD.not to make2

(2)3513【解析】【分析】(1)先求得c,然后利用正弦定理求得sinC.(2)先求得MA,MC,然后利用余弦定理、同角三角函数的基本关系式求得tan∠MAC.【小问1详解】依题意，c4=格6=7a=5,由余弦定理得a2=b2+c2-2 bc cos A,11即25=49+c2-2x7xcx14(c-30c-8)=0,解得c=3或c=8,当c=3时，c0sB=。+c2-B=25+9-49-}<0,2ac2x5x3=2B为钝角，不符合题意，所以c=8.由于cosA=>0,A是锐角，所以sinA=V-cosA=5V511114c58由E弦定理雅sin4 sinc5nCmC的a714【小问2详解】设MA=x,MC=y,x>y,则x+y=8y=8-x,x>8-x则{8-x>0,则40在三角形AMC中，由余弦定理得7=x2+(8-x)2-2×x×(8-x)×cos120°，x2-8x+15=(x-3)(x-5)=0,解得x=5或x=3(舍去).所以MA=5,MC=3,在三角形AMC中，由余弦定理得cos∠M4C=25+49-9_132×5×714

12.已知f(x)=ax-sinxx∈[0,6r)3ra(1-cosx)x∈[6m,7π]'若f(x)≥0恒成立，则不正确的是()A.f(x)的单调递增区间为(0,6π)B.方程f(x)=m可能有三个实数根C若函数f(x)在x=x处的切线经过原点，则x。=tanx。D.过f(x)图象上任何一点，最多可作函数f(x)的8条切线Ⅱ卷三、填空题：本题共有4个小题，每小题5分，共20分13.已知数列{an}的前n项和为Sn,且Sn=2an-1,则数列{an}的通项公式an=14.已知△ABC的面积S=5,∠A=牙，则B.Ac=一15若ma+}则sn216.A=(a,a2,a,…an),a∈{-1,0,1(i=1,2,3,…n)为-个有序实数组，f(4)表示把A中每个-1都变成-1,0，每个0都变成-1,1，每个1都变成0,1所得到的新的有序实数组.例如：A=(-1,0,1),则f(4)=(-1,0,-1,1,0,1)定义A1=f(A),k=1,2,3,…,若A=(-1,1),An中有bn项为1，{bn}的前2n项和为S2n,则S2n=·四、解答题：本题共有6个小题，共70分.17设向量a-（5 in x.in)b=(.xe[0引(1)若园=，求x的值：(2)设函数f(x)=ab,求f(x)的最大值，18.如图，在四棱锥P-ABCD中，底面ABCD是菱形，∠DAB=60°，PD⊥面ABCD,PD=AD=1,且点E,F分别为AB和PD中点

第5期Bl版Keys:(One possible version客观题除外)阅读训练营1-3 CBC4-7 ADAD完形小测1-5 ABDAC 6-10 CADBD非常解读1.black2.stop3.girl4.red5.places第5期B2版Keys:(One possible version)语法运用I.1.doesn't have2.finishes3.studies4.open5.teaches;doesn't teach6.Do:live7.does;snow8.visitⅡ.l.don't like walking2.doesn't do 3.Does;have;No;doesn't4.When do知识“串联”练一：1.many of my students2.play table tennis3.talk about/of4.at /on weekends5.make me feel great6.一个音乐俱乐部7.许多；大量·8.拿着这个包9.我的偶像10.和某人玩…11.观看比赛练二：1.watches football matches 2.makes me feel great3.play table tennis4.on weekends5.talk about练三：1.Where else did you go last weekend?2.My teacher makes me do my homework every day.写作一招鲜Hello,everyone!I'm Cindy from Beijing.I'm fourteen.I like sports very much.My favorite sportis table tennis.I like table tennis because it's a great game,and it makes me happy.I can also meetmany friends when I play table tennis.My favourite player is Zhang Yining.She's really great!Iplay table tennis every afternoon with my friends,and I go to the table tennis club on Saturdaymorning.I want to be a player like Zhang Yining.I hope my dream can come true!第5期B3版Keys:(One possible version客观题除外)随堂练SectionAI.1.visit2.goes3.want4.watches5.cries6.speaks7.drink8.studies9.Do;play;listen10.enjoys;doesn't likeII.1.have2.write3.isn't4.Does she live5.doesn't6.lives7.has8.Do they come9.don't10.are11.doesn't write12.talksIII.1.don't have2.doesn't live3.Do;meet;they do4.Does;sleep;she doesn't5.does;come6.When do theySection BI.1.fun2.listen to3.reading4.table tennis5.makesII.1.What else2.play football with3.a lot of

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1.The Great Wall is so splendid that a large number of tourists visit it every year2.He is off work today so he can have the air conditioner repaired eventually3.According to the research,people who exercise every day are more likely to live longer.IV.1.findings2.defend3.Thanks to 4.solid 5.assist 6.blame 7.transformSection 2I1.rainbow2.concept3.gifted4.concrete 5.abstractII.1.broke out2.in charge of3.came downIII.1.doing2.what3.to improve4.had5.a 6.bought7.construction8.thankful9.unexpectedly10.in5/5

B【语篇导读】本文是一篇记叙文。主要讲述的是理发师Vernon Jackson为了满足儿童理发的特殊需求，利用假期的时间为儿童理发，并创建了GiftedProgram理发项目，并得到了众人的认可，她也希望将这一项目推广到美国的其它地方。24.C推理判断题。根据首段中的But it's not because he wants to make as much money aspossible-it's because that's the day he has set aside to give free haircuts to children with speciales.(但这并不是因为他想赚尽可能多的钱，而是因为他留出了这一天为有特殊需要的孩子们免费理发。)以及第二段中的He began his Gifted Program haircuts in2021 after hearing manyhorror stories that parents were going through with.(在听到许多父母经历的恐怖故事后，他于2021年开始了他的Gifted Program理发。)”可知，他创建GiftedProgram是为了“reach out to.帮助”那些有特殊需要的孩子。25.D)细节理解题。根据第三段中的His goal is to get the children used to barbershops ingeneral,so they can eventually feel comfortable going in for haircuts when there are othercustomers around.(他的目标是让孩子们惯理发店，这样当周围有其他顾客的时候，他们最终会觉得去理发店理发很舒服。)可知他的目标是让孩子们能向多适应理发店，以至于他们能在周围有人的时候放心地理Jackson想通过Gifted Program,希望孩子们对环境有一个健康的适应26.B推理判断题。根据倒数第二段中的I have happy tears'”one user wrote in the commentsof a video that Jackson posted showing him lining a Gifted Program boy up for a haircut.You aretruly doing amazing thing.（“我流下了幸福的眼泪”一名用户在理发师发布的一段视频的评论中写道，视频中他让一名Gifted Program的男孩排队理发。“你真的在做了不起的事情。)很多用户发帖子赞扬Gifted Program做了了不起的事情，由此可知，线上的用户对GiftedProgram持支持的态度。27.C推理判断题。根据尾段中的“He hopes to eventually raise enough money for the programto be able to travel to other parts of the US to give haircuts to children with special needs there.(希望最终能眵为该项目筹集到足句够的资金，以便能句多前往美国其他地区，为那里有特殊需要的儿童理发。)Jackso希望把该顶目推广到美国的其它地方，以便在其它地下也可以给有特殊需求的孩子理发，由此可推断，Jackson对自己的项目雄心勃勃。第3页共10页

l4.C。理解具体信息。根据第三段中的But achieving a similar phaseout of widely usedgreenhouse gases like carbon dioxide(CO2)may be more difficult These gases are embeddedin nearly every aspect of our society可知，David W.Fahey想要表达的观点是：温室气体存在于我们社会的各个方面，其引发的问题远比臭氧空洞问题更难解决。l5.D,推断。根据最后一段中的Some scientists have argued this strategy could have unintendedside effects on weather和The UN cautioned against taking this action以及it“will not destroythe ozone layer and create catastrophic consequences,,”可知，对于用气溶胶进行气候干预这一措施还存在争议，不同的专家有不同的观点。【补充解释】1.eat away at sth(para.1:腐蚀；侵蚀2.phase sth out(para.2少：逐步或分阶段撤出或中止某事物第二节主题语境：人与社会一一人际沟通本文是说明文。作者在失去一段友谊后，对友情重新进行了审视。16.D。根据设空处前后两句可知，设空处要谈作者自身的情况，故D项“去年，我经历了有史以来最严重的友谊危机”符合语境。17.B。设空处是小标题。下面两段主要讲了不要在背后议论别人，因为最终传递出去的信息可能不是你的本意，故B项“永远不要在背后说别人的坏话”符合语境。18.F。设空处和前一句之间是并列关系。如果友谊出现问题，大部分时候，可以直接和朋友谈；“如果实在想吐槽，自己信赖的家人是最好的选择”，这样做不仅能释放情绪，还能避免因吐槽所导致的紧张气氛。19.G。设空处承接上一句。根据设空处前一句可知，正视自己和朋友友谊间出现的危险信号并不意味着消极、悲观，“你仍然可以拥有一段快乐的友谊一一只是你不应该忽视这些警告信号”。G项中的You can still have a happy friendship呼应上一句中的noting the red flagsdoes not equal pessimism.20.E。设空处承接上文。根据小标题可知，本段主要讲如果友谊难以修复，不妨承认这件事。E项“如果有人深深地伤害了你，那么把他们留在你的生活中可能是不值得的”符合题意。E项中的not be worth keeping them in your life与上文中的beyond repair和下文中的losea friend相呼应。【补充解释】1.bad blood(para.1:仇恨；恶感2.sweep sth under the rug(para.4):掩盖某事语言运用第一节主题语境：人与社会一一社会本文是新闻报道。高中生筹款助八十岁老人重新退休。21.D。22.A。根据文中的Mr James was forced to take the job again...left the students feelinguneasy和下文内容可知，James回学校上班这件事让孩子们感到难过，因为没有人八十岁了还上班。23.B。根据上文中的the original goal of S10,000和下文中的The donations..theS10,000goalin just12 hours可知，孩子们最初只希望筹到的款能够支付James的房租、食物、月账单。24.D。根据文中对James的描述可知，他支付房租有因难。25.C。根据文中语境可知，孩子们通过发布ames打扫学校走廊的视频鼓励人们为他捐款。26.B。根据下文的clean our mess up可知，孩子们发布的视频中，James正在打扫学校走廊。

第二节（共10小题：每阅读下面短文，在Shen Kuo was anscholar of astronommedical scienE.However,to prevent diseasea,avoid wettingth56F.To make them grow better,water themG.They can influence the growth of main brancheHe even made a grebeing 58 (knoy图读下面短文，从每题所给的AB.C,D四个选顶境人空白处的最佳选项第三部分语言运用（共两节，满分30分）Meng Xi Bi第一节（共15小题：每小题1分，满分15分）and 1093.In theApril 26 2023 the bus drivermthewhen sh(travel)throughgan to experience faint(昏质》Sem。Ld血tnme北经，school bus from4 1er the bus driver ot知宽Chaozhou,ChinChina.The bocThe bus began to turn to oncoming traffie.ilon,who waShen Kuoha地》金lost consciousness.larynxes(喉)项为多余steering wheel(方向盘)and brought the bus tod4(have)greatlocated in ShpreferredIn a video released by authorities at the news conference,Dillon was seen taking 48of the steering wheel and then shouting at the other passengers to calllike those oThe police and fire departments responded quickly o the sento4 to the driverand the students were loaded onto another bus to beso taken home.No injuries to thelocated byshade areMenguit will beChina.consistentThe city was very 51 of the hero!The little boy reacted quickly when his school busater themdriver experienced a 52 emergency,bringing the bus to a stop and 53 a very severechildren on the bus were reported.第四部分第一节你到ntains soilaccident.Dillon has been a hero.ains.Aim"Dillon has really been a 54 guy,his mother said."However,to do something like包括：or finelythat really makes my heart stop 55."D.speeding1C.slowing41.A.crashingB.stoppingD.fade awayC.come backng beforeB.pull overD.Possibly42.A.get upC.Eventually注意Although43.A.BarelyB.SlightlyD.ImmediatelyB.PersonallyC.EntirelyTomatoes44.A.ActuallyD.seatedB.fixedC.trackedhis range45.A.facedD.turnedB.destroyedC.caught46.A.setC.sorrowD.regretgrowing47.A.curiosityB.panicC.advantageD.chargeid plant48.A.controlB.careB.leadC.attendD.stick49.A.referB.safelyC.calmlyD.typicallyany side50.A.obviouslyB.shortC.proudD.aware51.A.worthyB.professionalC.moralD.medical52.A.communicativeB.reflectingC.avoidingD.identifying53.A.claiming54.A.greatB.frighteningC.joyfulD.suitableB.beatingC.dancing55.A.movingD.bleeding【高二英语第8页{共10页则】,EN·HUN.

《双语学报》2023一2024学年高一RX版·新教材广东专版第17期测试题参考答案及部分解析第17期测试题参考答案1-5 BDDAB6-10 BAABC11-15 DACBD16-20 BFEDA21-25BDBAC26-30 CACAD31-35 DBACB36-45(One possible version)36.saving37.highly38.shocked39.was required40.without41.to set42.satisfaction 43.an44.What45.moments写作(One possible version)第一节Dear Peter.Knowing that you are extremely interested in Chinese chess,I'm writing to invite you to jointhe chess club in our school with me.A lot of activities are held in the club,such as basic teaching,training workshops,and chesscompetitions.What's more,members who perform well in our school's chess competitions willhave an opportunity to take part in off-campus competitions on behalf of our school.I believejoining the club will not only improve your chess skills but it will also provide a good chance tomeet more like-minded friendsI'm looking forward to your early reply.Yours,LiHua第二节Paragraph 1:The three boys were back,but this time there was a crowd of kids following them.A lineformed all the way outside the door!The kids were talking cheerfully,pointing at the new flavorsCarly was glad to see her aunt's ideas worked.They worked fast to serve the customers.It seemedthe customers couldn't get enough of the special creations.Soon the candies for the day were soldout.When Carly and Maggie finally finished serving the last customer,they were extremely tiredbut very satisfied with the salesParagraph 2:When Carly's parents came back,they were surprised that everything was sold out.Afterknowing what had happened,they thanked Carly and Maggie for their hard work and told themthat it was important to meet customers'needs first.Carly's parents also realized that sometimescreativity can bring fun,and that it is important to be open to new things.From that day forward,Carly's family kept providing classic candy for customers while introducing creative new productsregularly.That was what made their business stand out听力练17参考答案1-5 CCBCA6-10 ACAAB11-15 BCBBC16-20(One possible version)16.summer17.reading18.sleep19.trip20.started

Text 1W:John,this picture is beautiful.Did you finish it all by yourself?M:No.Louis helped me draw the birds and Shelly colored the trees.Text 2M:Honey,hurry up!It's 5:30 p.m.We should arrive at the concert 10 minutes earlier.W:Take it easy.The concert starts at 7:00 p.m.Please give me 20 more minutes to finish my work.Ipromise you we'll set off as soon as I'm done.M:Alright.Text3W:Mr.Brooks,may I ask for a 3-day leave?M:What's wrong,Helen?W:My niece fell down the stairs,but her parents are both away on business.So I need to look after her.Text 4W:Look,bees!Spring comes at last!M:Well,I don't like spring at all!W:Are you serious?Don't you think spring is cheerful?Everything comes to lifeM:But the bees are so annoying..Text5M:What are you going to do after graduation?W:I think I'll find a job in a school first.I want to be a teacher.And you?M:I intend to go back to my hometown to start my own business and then get married.Text 6W:Why are you crying?Are you lost?M:No,ma'am.I pushed over my sister,so my parents criticized me.W:Why did you do that?M:My sister and I both wanted to be the owner of the pet dog.So we quarreled and I pushed her over.My parents said they would give the pet dog to my grandma.W:Well,I guess your parents said that because they were too angry.It's getting dark.You'd better gohome.What's your dad's number?Let me call him to pick you up.Text 7M:Congratulations!I can't believe you are a mother now!W:Oh,Toby.Thank you for coming here.M:Come on.How could I miss your big moment!I came here from my company as soon as I gotTommy's call.Your baby boy is so cute!W:Thank you so much.We're going to name him Arthur.M:It's a good name!I guess Tommy gave this name,right?W:No.My sister recommended this name.M:I see.Well,you look tired.W:It's really exhausting to give birth to a baby.The doctor said I needed more rest.Text 8M:Wow!you bought a new floor lamp!第3页共4页

score,I won't have to take some basic courses at university. But my dog is young and I'm afraid to leave him home alone for most of the day. W:I think I can help out.I can take your dog hiking with me. I'm sure he'll love to run around on the paths.Does he under- stand? M:If you use the right words,he'll do anything you say.I'll teach you the commands he knows. (Text 8) W:Can I help you? M:I'd like to buy some Chinese-style cakes.Could you recom mend me some? W:Certainly.What about mooncakes?They're typical Chinese

【答案】 Nowadays many children are getting fatter and fatter. By In some way,the unhealthy food ads on TV are to blamed.Some blame parents are often misled by honest food ads.They blindly ac- dishonest cept the foods advertised on TV and buy food which it just sounds better for their children.They don't know some of the good foods advertised are junk foods,that are harmful to their chil- which dren.Therefore,I think the unhealthy food ads on TV are not However A only reason for children's obesity.If there were no food ads, the