2020年广州22所高中自招真题(内附华附省实等名校真题)

华附、省实、深中、广雅2020届高三年级四校联考数 学（文科）本试卷分选择题和非选择题两部分，共5页，满分150分，考试用时120分钟.注意事项：1. 答卷前，考生务必用黑色字迹的钢笔或签字笔将自己的姓名、考号填写在答题卡上.2. 答案一律做在答题卡上，选择题的每小题选出答案后，用2B 铅笔把答题卡上对应题目的答案标号涂黑；如需改动，用橡皮擦干净后，再选涂其它答案.3. 非选择题必须用黑色字迹的钢笔或签字笔用答，答案必须写在答题卡各题目指定区域内的相应位置上；如需改动，先划掉原来的答案，然后再写上新的答案；不准使用涂改液.不按以上要求作答的答案无效.4. 保持答题卡的整洁，不要折叠，不要弄破.第一部分 选择题（共60分）一、选择题：本大题共12小题，每小题5分，共60分. 在每小题给出的四个选项中，只有一项是符合题目要求的.1．已知集合{}{}2230,ln()A x x x B x y x =+-≤==-，则A B =I A ．[3,0]-B ．[3,1]-C ．[3,0)-D ．[1,0)-2．已知z C ∈，2z i z i ++-=，则z 对应的点Z 的轨迹为 A ．椭圆B ．双曲线C ．抛物线D ．线段3．设0.7log 0.8a =，0.911log 0.9 1.1b c ==，，那么 A ．a b c << B ．a c b << C ．b a c <<D ．c a b <<4．“干支纪年法”是中国历法上自古以来使用的纪年方法，甲，乙，丙，丁，戊，己，庚，辛，壬，癸被称为“十天干”，子，丑，寅，卯，辰，巳，午，未，申，酉，戌，亥叫做“十二地支”．“天干”以“甲”字开始，“地支”以“子”字开始，两者按干支顺序相配，组成了干支纪年法，其相配顺序为：甲子，乙丑，丙寅，…癸酉，甲戌，乙亥，丙子，…癸未，甲申，乙酉，丙戌，…癸巳，…，共得到60个组合，称六十甲子，周而复始，无穷无尽．2019年是“干支纪年法”中的己亥年，那么2026年是“干支纪年法”中的 A ．甲辰年B ．乙巳年C ．丙午年D ．丁未年5．函数3cos 1()x f x x+=的部分图象大致是 A ． B ．C ．D ．6．在普通高中新课程改革中，某地实施“3+1+2”选课方案．该方案中“2”指的是从政治，地理，化学，生物4门学科中任选2门，假设每门学科被选中的可能性相等，那么政治和地理至少有一门被选中的概率是 A ．16 B ．12 C ．23D ．567．若向量a r ，b r 满足12a b ==r r ，，且3a b -=r r ，则向量a r ，b r的夹角为A ．30°B ．60°C ．120°D ．150°8．某程序框图如图所示，其中21()g x x x=+，若输出的20192020S =，则判断框内应填入的条件为 A ．2020?n < B ．2020?n „ C ．2020?n >D ．2020?n …9．设等差数列{}n a 的前n 项和为n S ，若28515a a a +=-，则9S 等于 A ．18B ．36C ．45D ．6010．已知函数()cos sin f x x x =-，那么下列命题中假命题是 A ．()f x 是偶函数 B ．()f x 在[,0]π-上恰有一个零点 C ．()f x 是周期函数D ．()f x 在[,0]π-上是增函数11．在三棱锥P ABC -中，PA PB PC ===AB AC BC ===P ABC -外接球的体积是A ．36πB ．125π6C ．32π3D ．50π12．已知椭圆C 的焦点为1(1,0)F -，2(1,0)F ，过2F 的直线与C 交于A ，B 两点．若223AF BF =，125BF BF =，则椭圆C 的方程为A ．2212x y +=B ．22132x y +=C ．22143x y +=D ．22154x y +=第二部分 非选择题（共90分）二、填空题：本大题共4小题，每小题5分，共20分. 请将答案填在答题卡的相应位置上. 13．曲线cos y x x =+在点(0,1)处的切线方程为 .14．某工厂为了解产品的生产情况，随机抽取了100个样本．若样本数据1x ，2x ，…，100x 的方差为16，则数据121x -，221x -，…，10021x -的方差为 .15．设F 为双曲线C ：22221x y a b-=（a >0，b >0）的右焦点，O 为坐标原点，以OF 为直径的圆与圆222+x y a =交于P Q ，两点．若PQ OF =，则C 的离心率为 .16. 在ABC ∆中，角A ，B ，C 的对边分别为4a b c c a A ==，，，，，且角C 为锐角，则ABC ∆面积的最大值为 .B 1C 1A 1DCBA三、 解答题：满分70分. 解答应写出文字说明、证明过程或演算步骤. 第17～21题为必考题，每个试题考生都必须作答，第22、23题为选考题，考生根据要求作答. （一）必考题：共60分. 17．(本小题满分12分)在等比数列{}n b 中，公比为(01)q q <<，13511111,,,,50322082b b b ⎧⎫∈⎨⎬⎩⎭，，． （Ⅰ）求数列{n b }的通项公式；（Ⅱ）设()31n n n c b -=，求数列{}n c 的前n 项和n T ．18．(本小题满分12分)如图，在直三棱柱111ABC A B C -中，1111A B AC ⊥，D 是11B C 的中点，1112A A A B ==.（Ⅰ）求证：1AB ∥平面1A CD ；（Ⅱ）异面直线1AB 和BC 所成角的余弦值为13，求几何体11A B DCA 的体积.19．(本小题满分12分)已知某保险公司的某险种的基本保费为a （单位：元），继续购买该险种的投保人称为续保人，续保人本年度的保费与其上年度出险次数的关联如下：随机调查了该险种的400名续保人在一年内的出险情况，得到下表：该保险公司这种保险的赔付规定如下：（Ⅰ）求本年度续保人保费的平均值的估计值；（Ⅱ）按保险合同规定，若续保人在本年度内出险3次，则可获得赔付()2.5 1.5a a a ++元；若续保人在本年度内出险6次，则可获得赔付()2.5 1.50.5a a a a +++元；依此类推，求本年度续保人所获赔付金额的平均值的估计值； （Ⅲ）续保人原定约了保险公司的销售人员在上午1030：～1130：之间上门签合同，因为续保人临时有事，外出的时间在上午1045：～1105：之间，请问续保人在离开前见到销售人员的概率是多少？20．(本小题满分12分)已知点()1e ，，e ⎛ ⎝⎭在椭圆2222:1(0)x y C a b a b +=>>上，其中e 为椭圆的离心率，椭圆的右顶点为D .（Ⅰ）求椭圆C 的方程；（Ⅱ）直线l 过椭圆C 的左焦点F 交椭圆C 于A ，B 两点， 直线DA ,DB 分别与直线a x e=-交于N ，M 两点，求证： 0NF MF ⋅=u u u r u u u u r.21．(本小题满分12分)已知函数()2()2ln f x x x ax a R =+-∈有两个极值点12x x ，，其中12x x <.（Ⅰ）求实数a 的取值范围；（Ⅱ）当a≥+()()12f x f x -的最小值. （二）选考题：共10分. 请考生从给出的第22、23题中任选一题作答，并用2B 铅笔在答题卡上把所选题目对应的题号涂黑，注意所做题目的题号必须与所涂题号一致，如果多做，则按所做的第一题计分.22．(本小题满分10分) 选修4-4；坐标系与参数方程在直角坐标系xoy 中，以坐标原点O 为极点，x 轴正半轴为极轴，建立极坐标系，曲线21:4sin 20C ρρθ-+=，曲线2:cos 042C πρθ⎛⎫-+= ⎪⎝⎭. （Ⅰ）求曲线12C C ，的直角坐标方程；（Ⅱ）已知曲线1C 与y 轴交于A B ，两点，P 为曲线2C 上任一点，求PA PB +的最小值.23．(本小题满分10分) 选修4-5：不等式选讲已知函数()f x x t =+的单调递增区间为[)2,-+∞. （Ⅰ）求不等式()121f x x +<+的解集M ； （Ⅱ）设a b M ∈，，证明：1a b ab +<+.数学（文科）参考答案一、选择题CDCCB DBACD BA 二、填空题13．10x y -+= 14．64 15．三、解答题17．解：（Ⅰ）因为公比为(01)q q <<的等比数列{}n b 中，13511111,,,,50322082b b b ⎧⎫∈⎨⎬⎩⎭，， 所以，当且仅当135111,,2832b b b ===时成立.----------------------2分 此时公比23114b q b ==,12q = ---------------------------------3分 所以1.2n n b ⎛⎫= ⎪⎝⎭------------------------------------------------5分（Ⅱ）因为1(31)2nn c n ⎛⎫=-⋅ ⎪⎝⎭所以 123n n T c c c c =++++L1231111=258(31)2222nn ⎛⎫⎛⎫⎛⎫⎛⎫⨯+⨯+⨯++-⋅ ⎪ ⎪ ⎪ ⎪⎝⎭⎝⎭⎝⎭⎝⎭L --------------7分2311111125(34)(31)22222nn n T n n +⎛⎫⎛⎫⎛⎫⎛⎫∴=⨯+⨯++-⋅+-⋅ ⎪ ⎪ ⎪ ⎪⎝⎭⎝⎭⎝⎭⎝⎭L --------8分123111111123(31)222222n n n T n +⎡⎤⎛⎫⎛⎫⎛⎫⎛⎫⎛⎫∴=⨯+⨯+++--⋅⎢⎥ ⎪ ⎪ ⎪ ⎪ ⎪⎝⎭⎝⎭⎝⎭⎝⎭⎝⎭⎢⎥⎣⎦L --------9分11111131(31)222n n n -+⎡⎤⎛⎫⎛⎫=+⨯---⋅⎢⎥ ⎪⎪⎝⎭⎝⎭⎢⎥⎣⎦-------------------------11分5135222nn +⎛⎫=-⋅ ⎪⎝⎭故数列{}n c 的前n 项和15(35)2nn T n ⎛⎫=-+⋅ ⎪⎝⎭----------------------------12分18. 解：（Ⅰ）如图，连结1AC 交1A C 于点E ，连结DE ---------------------------1分 因为在直三棱柱111ABC A B C -中，四边形11AAC C 是矩形所以 点E 是1A C 的中点---------------------------------------------2分因为D 是11B C 的中点所以 DE ∥1AB ---------------------------------------------------3分因为1AB ⊄平面1A CD ，DE ⊂平面1A CD所以 1AB ∥平面1A CD ---------------------------------------------4分（Ⅱ）因为棱柱111ABC A B C -是直三棱柱 所以 111AA AC ⊥因为1111111A B AC A A A B ⊥=，所以 111AC B C =---------------------------------------------------5分因为异面直线1AB 和BC 所成角的余弦值为13所以11cos AB C ∠=分 因为1111112A A A B A A A B ==⊥，所以 1AB 分根据余弦定理，在11AB C ∆中，222111111111=2cos AC B C AB B C AB AB C +-⋅⋅∠可得11B C 分因为111111=2A B AC A B ⊥，，所以 由勾股定理可得 11=3A C 因为11111111111,,C A A B C A A A A A A B A ⊥⊥=I 所以111C A A B ⊥平面同理111A B AC ⊥平面------------------------------------------------9分所以 11111=A B DCA D A AB D AA C V V V --+--------------------------------10分113112223132232=⨯⨯⨯⨯+⨯⨯⨯⨯ 2=所以 几何体11A B DCA 的体积为2.----------------------------------12分19. 解：（Ⅰ）由题意可得0.90.70.2 1.50.06 2.50.0340.01 1.035a a a a a a ⨯+⨯+⨯+⨯+⨯=；----4分（Ⅱ）由题意可得本年度续保人所获赔付金额的平均值的估计值00.7 2.50.240.0650.03 5.50.010.945a a a a a ⨯+⨯+⨯+⨯+⨯=；-----8分（Ⅲ）设保险公司销售人员到达的时间为x ，续保人离开的时间为y ，(),x y 看成平面上的点，全部结果所构成的区域为()31=,10.511.5,1011412x y x y ⎧⎫Ω≤≤≤≤⎨⎬⎩⎭， 则区域Ω的面积()11133S Ω=⨯=---------------------------------9分 事件A 表示续保人在离开前见到销售人员，所构成的区域为()31=,,10.511.5,1011412A x y y x x y ⎧⎫≥≤≤≤≤⎨⎬⎩⎭---10分 即图中的阴影部分，其面积()11715==2412336S A ⎛⎫⨯+⨯ ⎪⎝⎭------------------11分 EB 1C 1A 1DCBA111121034y xO 所以()5536P ==1123A ，即续保人在离开前见到销售人员的概率是512--------12分（备注：第Ⅰ、Ⅱ参考答案中的表格填写正确各得2分；示意图不要求作出）20. 解：（Ⅰ）依题意得22222211341e a b e ab ⎧+=⎪⎪⎨⎪+=⎪⎩ 解得222,1a b ==所以 椭圆C 的方程为2212x y +=-----------------------------------3分 （Ⅱ）由（Ⅰ）得2ae=， -----------------------------------------------4分 如图，设()11,A x y ，()22,B x y ，()32,N y -，()42,M y -， 把直线1l x my =-：代入椭圆方程，得()222210m y my +--=所以12122221,22my y y y m m +=⋅=-++--------------------------5分 因为M B D 、、三点共线，得422222x =---------------------------6分 所以))224222222212y y y x my ----==--- ①-------------7分同理，由N A D 、、三点共线，得)1312212y y my --=-- ②-------------8分因为3434=2121NF MF y yk k y y ⋅=⋅-+-+ ③-------------9分所以把①②代入③得2122NF MF y y k k ---⋅=(()()()212221212211y y m y y m y y +=-++++--10分=分=1-所以 0NF MF ⋅=u u u r u u u u r--------------------------------------------------12分21. 解：（Ⅰ）依题意得()f x 的定义域为(0+)∞，，222()x a x f x x-+'=----------1分因为函数()f x 有两个极值点1212x x x x <，，所以方程222=0x ax -+有两个不相等的正根1212x x x x <，，所以21212=160021a a x x x x ⎧∆->⎪⎪+=>⎨⎪⋅=⎪⎩--------------------------------------------3分解得4a >此时()f x 在1(0)x ，和2(+)x ∞，上单调递增，在12()x x ，上单调递减 所以 实数a 的取值范围是()4+∞，-------------------------------4分 （Ⅱ）因为1x ，2x 是方程2220x ax -+=的两个根，所以122ax x +=，121x x = 因为211220x ax -+=，222220x ax -+=所以 21122ax x =+，22222ax x =+---------------------------------6分所以()()2212111222()()2ln 2ln f x f x x x ax x x ax -=+--+-22221112222ln (22)2ln (22)x x x x x x ⎡⎤⎡⎤=+-+-+-+⎣⎦⎣⎦2221122ln 2ln x x x x =-+-222111222ln x x x x x x -=+ 2111222ln x x x x x x =-+--------------------------------8分 令12x t x =()01t <<，1()2ln h t t t t=-+，则 222221221(1)()10t t t h t t t t t -+---'=--+==< 即()h t 在()0，1上单调递减------------------------------------------10分 因为a ≥ 所以122a x x +=≥ 所以221212()x x x x +≥ ，即 22121212212x x x x e x x e ++≥++ 所以 12211x x e x x e +≥+ ， 即 11t e t e+≥+ 所以 1()()0t e t e --≥，01t <<所以 10t e<≤------------------------------------------------------11分 因为 ()h t 在10e ⎛⎤ ⎥⎝⎦，上单调递减 所以()h t 的最小值为112h e e e ⎛⎫=-- ⎪⎝⎭即()()12f x f x -的最小值为12e e--.--------------------------------12分 22. 解：（Ⅰ）因为cos sin x y ρθρθ=⎧⎨=⎩， 所以曲线1C 的直角坐标方程为22420x y y +-+=-----------------2分因为()cos cos +sin 1422πρθρθρθ⎛⎫-+=+ ⎪⎝⎭----------------4分所以曲线2C 的直角坐标方程为10x y ++=------------------------5分（Ⅱ）因为曲线1C 与y 轴交于((020,2A B -+，，两点------------6分点A 关于直线10x y ++=的对称点为()1A '---------------8分所以PA PB A B '+≥==所以PA PB +分23. 解：（Ⅰ）依题意得2t =--------------------------------------------------1分 所以不等式()121f x x +<+化为2121x x ++<+当2x <-时，原不等式化为2121x x --+<--，0x <，得2x <-------2分 当122x -≤<-时，原不等式化为+2+121x x <--，43x <-， 得423x -≤<------------------------------------------3分 当12x ≥-时，原不等式化为+2+12+1x x <，2x >，得2x >------------4分 所以，不等式()121f x x +<+的解集4=23M x x x ⎧⎫<->⎨⎬⎩⎭或----------5分 （Ⅱ）要证明1a b ab +<+，只需证明()222212ab ab a ab b ++>++即要证明()22210ab a b --+>--------------------------------------6分 因为423a b x x x ⎧⎫∈<->⎨⎬⎩⎭，或，所以221616,99a b ≥≥---------------8分 因为()()()()22222222111110ab a b a b b b a --+=--+=-->--------9分所以()22210ab a b --+> 即1a b ab +<+得证 ---------------------------------------------10分。

华附、省实、深中、广雅2020届高三四校联考英语试题本试卷8页，满分120分。

考试用时120分钟注意事项：1. 答卷前，考生务必用黑色字迹的钢笔或签字笔将自己的校名、姓名、考号、座位号等相关信息填写在答题卡指定区域内。

2. 选择题每小题选出答案后，请用2B铅笔把答题卡上对应题目的答案标号涂黑；如需改动，用橡皮擦干净后，再选涂其他答案；不能答在试卷上。

3. 非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卡各题目指定区域内的相应位置上；如需改动，先划掉原来的答案，然后再写上新的答案；不准使用铅笔和涂改液，不按以上要求作答的答案无效。

4. 考生必须保证答题卡的整洁。

第二部分阅读理解（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。

AOccasions like anniversaries, weddings and reunions call for special event venues (场地).The following places may have a way out. There’s no need to spend money creating atmosphere at special event venues. It’s built right in!Hard Rock Cafe Anchorage415 E. STREET, ANCHORAGE, ALASKA 99501Events, like great music are born of inspiration. Featuring a 13,600-square-foot facility that will seat 275 guests with private event space, we pride ourselves on delivering an exceptional experience with a rock and roll twist for each of our guests. Business Expo Center1960 S. ANAHEIM WAY, ANAHEIM, CALIFORNIA 92805The Business Expo Center is Orange County’s premier event venue in Anaheim, California. Our flexible 36,000-square-foot expo center is home to space for conferences, trade shows and celebrations. We pride ourselves on providing a memorable experience with excellent flexibility, servi ces, and cost savings. We won’t charge customers for on-site parking and provide high-speed Wi-Fi.Automobile Driving Museum610 LAIRPORT STREET, EL SEGUNDO, CALIFORNIA 90245Centrally located in the South Bay beach community of El Segundo, California, the ADM offers a wonderful venue for private parties and corporate events. Conveniently located 5 minutes south of LAX, right off the 405 and 105 Freeways, the 610 Lairport space has a vintage feel surrounded by our primary automobile collection. We offer several different venues inside and outside our facility for diverse events. To better our service, reservations are needed.Yamashiro Hollywood1999 N. SYCAMORE AVE., LOS ANGELES, CALIFORNIA 90068Yamashiro Hollywood is a restaurant and therefore, all food and beverages must be handled in house. However, guests are allowed to bring in outside wine and champagne for a corkage fee.21. What can you do in Business Expo Center?A. Enjoy free parking.B. Bring in outside wine.C. Experience a rock and roll twist.D. See some automobile collections.22. Which venue do you need to book in advance?A. Business Expo Center.B. Yamashiro Hollywood.C. Hard Rock Cafe Anchorage.D. Automobile Driving Museum.23. What do the four venues have in common?A. They offer optional places.B. They are open to special events.C. They are located in the same state.D. They enjoy convenient transportation.BKyle Cassidy and three other members of the Annenberg Running Group were stretching on the grounds of the University of Pennsylvania, waiting for a few latecomers. The Penn colleagues and other community members meet three days a week for a roughly 30-minute jog and an occasional lecture. That’s right—during some runs, one of them delivers a talk. Topics range from the brain to Bitcoin.But on this day last January, it would not be their normal run. The first clue that something was off was the man who sprinted past them. “Running at an amazing pace,” Cassidy told Runner’s World admiringly. Cassidy discovered why the sprinter was so fleet of foot when another man ran by, yelling, “Help! He took my phone and laptop!”At that, the group did what running clubs do: They ran, trailing the suspect down the streets of Philadelphia until he ducked into a construction site. The runners split up. Cassidy ran around to the far side of the site to cut the thief off while the others wandered the neighborhood hoping he had dumped the loot (赃物) in a backyard.No luck. So they decided to ask residents whether they’d seen the guy. When they knocked on the door of one row house, they were in for a surprise. Unknown to them, he had already emerged from the construction site—and was hiding behind a bush by that very house. As the owner opened the door, the suspect darted out from behind the bush … and right into the arms of campus police, who’d joined the chase shortly behind the runners.The members of this running group are not hard-core athletes. But they do understand the benefit of a little exercise. “Running is typically a useless sport whe re you turn fat cells into heat,” Cassidy told The Philadelphia Inquirer. “But occasionally it can be useful, and here was one of those opportunities.”24. Why do the group members gather together?A. To do some stretching.B. To have a regular run.C. To deliver a lecture.D. To cover some topics.25. What does the underlined word “sprinted” in Paragraph 2 probably mean?A. Dashed.B. Pushed.C. Jumped.D. Escaped.26. We can infer that the success of the chase is mainly due to _______.A. the assistance of the runnersB. the owner of the row houseC. the campus police on patrolD. the joint efforts of the people27. Which of the following best describes Cassidy?A. Athletic and generous.B. Courageous and ambitious.C. Helpful and humorous.D. Thoughtful and demanding.CFood experts say washing could spread the germs on your turkey in the kitchen sink or nearby food. But it’s been a challenge trying to convince cooks to stop rinsing(冲洗) off raw poultry. Germs that can make people sick are common in the guts of healthy poultry and are legally allowed to be on raw turkey and chicken. The assumption is that nobody eats their poultry raw, and that thorough cooking will kill the bacteria.The do-not-wash raw poultry advice from the USDA is relatively new and perhaps hasn’t caught on because it goes against the common belief that washing makes things clean, said Chapman. Benjamin Chapman, a study author and food safety expert at North Carolina State University, said the instinct to wash raw poultry goes back at least decades when people relied more on visual clues to spot problems with poultry. Meanwhile, washing hands and surfaces are also important.But food preparation is a complicated act, and germs from poultry can be spread even if it’s not washed, especially when birds are removed from packaging.The USDA-funded study stresses that point. Researchers sprayed raw chicken with a harmless strain of E. coli(大肠杆菌) and watched volunteer cooks at test kitchens. Among those who washed their raw chicken, about a quarter ended up spreading the bacteria to their lettuce. But even some of those who did not rinse the chicken got germson the lettuce. And there are other opportunities for germs to survive on turkeys: melting and cooking.To ensure a bird is thoroughly cooked, they say to use a thermometer to check that the deepest and thickest parts of it have reached 165 degrees. Even after the meal is cooked, you aren’t out of the danger zone. To keep turkeys and other leftovers safe, experts say they should be refrigerated after two hours.28. People don’t accept USDA’s advice because _______.A. the advice is relatively newB. cleaning seems more trustworthyC. cooks clean the turkey before cooking itD. heat can kill most germs and no one eats raw food29. What can be concluded from Paragraph 4?A. Food packages carry germs.B. Hands and surfaces are easy to get E. coli.C. Germs from a turkey can be spread whether it is washed or not.D. Multiple methods should be applied to food to get rid of germs.30. Which way may help to cook a turkey safely?A. Rinse off the turkey before it is heated.B. Keep the turkey away from the lettuce and refrigerator.C. Wash hands and packages before taking out the turkey.D. Use a thermometer to check the temperature of the turkey.31. From which section of a magazine is the text probably taken?A. Culture.B. Science.C. Education.D. Medicine.DMicroplastics are everywhere in our en vironment. It’s hardly surprising that the tiny fragments have also been found in humans. A new study shows that Americans are consuming as many as 121,000 particles each year.Measuring 50 to 500 microns in length, microplastics come from a variety of sources, including large plastics that break down into smaller and smaller pieces. Therefore, much remains unknown about the common existence of these materials within the human body, as well as their impact on human health.Hoping to fill in some of these gaps, a research team led by Kieran Cox, a PhD candidate at the University of Victoria, looked at 26 papers assessing the amount of microplastics in commonly consumed food items, among which are seafood, sugars, salts, honey, alcohol and water. The team also evaluated the potential consumption of microplastics through inhalation (吸入) using previously reported data on microplastic concentrations in the air and the Environmental Protection Agency’s reported respiration rates. Based on these data, the researchers calculated that our annualconsumption of microplastics via food and drink ranges from 39,000 to 52,000 particles. When microplastics taken in through inhalation are taken into account, the range jumps to between 74,000 and 121,000 particles per year.The authors of the study found that people who drink exclusively from plastic water bottles absorb an additional 90,000 microplastics each year, compared to 4,000 among those who only consume tap water. “This shows that small decisions, over the course of a year, really matter and have an impact.” Cox says. The new study, according to its authors, was the first to investigate “the accumulative human exposure” to microplastics. But in all likelihood, the research tells only a small part of the entire story. Collectively, the food and drink that the researchers analyzed represent 15 percent of Americans’ caloric intake. The team could not account for food groups like fruits, vegetables and grains because there simply is not enough data on their microplastic content.For those worried about microplastic consumption, cutting down bottled water is a good place to start. But to the heart of the problem, we have to stop producing and using so much plastic.32. What makes it difficult to know microplastics commonly exist in the human body?A. The quality.B. The quantity.C. The shape.D. The size.33. How did Kieran Cox’s team calculate the potential consumption of microplastics?A. By studying papers.B. By comparing the impacts.C. By analyzing the data.D. By conducting experiments.34. Which of the following is true according to the text?A. Drinking less plastic bottled water helps to take in fewer microplastics.B. The study is among the earliest to investigate human exposure to microplastics.C. Cox’s team gained comprehensive information of microplastics taken in by humans.D. People consume 74,000 to 121,000 particles of microplastics per year from foodand drink.35. What is the best title for the text?A. The Potential Problems of MicroplasticsB. Microplastics Coming From Various SourcesC. Microplastics Found Within Human BodiesD. The Impact of Microplastics on Human Health第二节（共5小题；每小题2分，满分10分）根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。

英语参考答案第一部分阅读理解(共20小题；每小题2分,满分40分)21-23 ADB 24-27 BADC 28-31 BCDB 32-35 DCAC 36-40 GDCEA第二部分英语知识运用(共两节,满分45分)第一节完形填空(共20小题；每小题1.5分,满分30分)41-45 CDDAB 46-50 ACCBD 51-55 BBACA 56-60 DDABC第二节语篇填空(共10小题；每小题1.5分,满分15分)61. but 62. heard 63. a 64. on 65. running66. which 67. himself 68. truly 69. to remain 70. Photographers 评分标准：内容、时态、大小写、单复数都与答案完全一致才得分。

第三部分写作(共两节,满分35分)第一节短文改错(共10处；每处1分,满分10分)People always say that we lack of the eyes of re alizing the beauty in life. I can’t agree complete. Lastcompletely Friday, I wake up very early and decided to take a walk. In the square there many senior citizens woke/waked wherewere dancing, I found several elders absorb in feeding birds. Without many cars, I realized the city lookedabsorbedso clean but beautiful. Some coffee shop, which used to be old and shabby, were decorated pretty well and and shopscaught my attention. On both sides of the streets were big trees covering the whole city, making∧ a greenitcity. At that moment , I found a city so interesting. How I regret ignore its beauty before!the ignoring书面表达(满分25分)A Possible Version:Dear Jason,I’m Li Hua, chairman of the students’ union. On behalf of the students, I’d like to express our heartfelt gratitude for inviting us to your school’s upcoming Chinese Culture Week. To get further information, I’m writing to make some inquiries concerning the event.Firstly, I’m wondering on what date the event is scheduled to start so that we can apply for visas and book air tickets in advance. Also, I want to ask about the specific activities throughout the week, because the information can help us make better preparations and promote our participation. Lastly, could you please tell us what type of accommodation(s) will be provided? If possible, we hope to stay in the school dormitory, which will offer us more opportunities for cultural exchange with your students.Thanks again for your kind invitation. It would be highly appreciated if you could deal with my inquiries at your convenience. Looking forward to your early reply.Yours sincerely,Li Hua。

2020-2021学年广东省华附、省实、广雅、深中高二下学期四校联考英语试题★祝考试顺利★(含答案)本试卷分选择题和非选择题两部分，共 12 页，满分 150 分，考试用时 120 分钟。

第一部分选择题（共 85 分）一、单项选择(共 20 题；每小题 1 分，满分 20 分)请从每题所给的 A、B、C、D 四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

1. The percentage of students at high schools who ______ newly diagnosed with depressionnot dropped significantly.A. was; hasB. were; hasC. was; haveD. were; have2. The boy made a hole in the wall, he could see was going on inside the house.A. from which; thatB. in which; whatC. through which; whatD. what; which3. the examination score is the only criterion for his academic performance, a student isdriven to memorize mechanically rather than creatively.A. Though; to thinkB. As; thinkingC. Though; thinkingD. As; to think4. brought them to the public’s attention was they were condemned in someillegal business practices to obtain their current position in the market.A. What; that; to be involvedB. That; that; to be involvedC. What; whether; to involveD. That; whether; to involve5. Hardly that the early identification of those children’s special educational needssuch a huge difference to them.A. he believed; madeB. did he believe; madeC. he believes; had madeD. did he believe; had made6. He still hesitated on he would rent the apartment, only drawback wasit was too small.A. whether; whose; thatB. what; which; thatC. what; which; /D. whether; whose; /7. With every care , they managed to ensure the accuracy of all information in this leaflet.A. taking; givingB. taken; givenC. being taken; givenD. to be taken; giving8. with the information you have gathered, you can preparing your business plan.A. Armed; set outB. Arming; set offC. Armed; set aboutD. Arming; set aside9. an arrangement to postpone the house project in the village, we movedto discusswe should carry out the farming modernization there.A. Having made; whenB. Making; whatC. Having made; thatD. Making; where10. In the critical times, anyone would be by such disturbing newshe told.A. broken down; asB. cast down; asC. paid off; thatD.carried away; that11. Anne the midnight oil to make full preparations for the coming final exams in expectationof to her dreamed school.A. burned; admittingB. had burned; admittingC. burned; being admittedD. had burned; being admitted12. So cruel that he never shows any mercy to is against his opinion.A. the man is; whoeverB. is the man; whomeverC. the man is; whomeverD. is the man; whoever13.When making scientific experiments, .A. temporary setbacks would easily discourage peopleB. one should not be discouraged by temporary setbacksC. what discourages people may be those temporary setbacksD. it is important to avoid being discouraged by temporary setbacks14. was it distinguished her her classmates?A. What; that; fromB. Which; that; fromC. What; which; withD. Which; which; with15. In the past 10 years it the doctors the new drug has great significance for thetreatment of the disease.A. puzzled; whereB. has puzzled; whetherC. puzzles; thatD. had puzzled; how16. Which of the following sentences is wrong?A. He spoke abruptly, in barely comprehensible Arabic.B. We overlook our own roles in shaping children’s minds.C. After losing her sight, her other senses grew more sensitive.D. Multivitamins are no substitute for exercise and a balanced diet, ofcourse.17. , he stood out competence from all his fellows.A. Bad-tempered as he was; in terms ofB. As he was bad-tempered; in spite ofC. Bad-tempered though he was; in favour ofD. Though he was bad-tempered; by means of18. The two sides called off the fighting and they seemed .A. having made an acquaintanceB. having reaching a compromiseC. to have made an acquaintanceD. to have reached a compromise19. As boys generally learn best through touch, and are physically more active, they needmore “hands-on” lessons they are allowed to walk around.A. giving; whereB. to be given; whereC. being given; whenD. given; when20. Arthur has made a recommendation, he wants her to put before the board at a specialmeeting for tomorrow afternoon.A. what; to be scheduledB. that; will be scheduledC. which; scheduledD. where; scheduling二、阅读理解（共两节，满分 42.5 分）第一节（共 12 小题；每小题 2.5 分，满分 30 分）阅读下列短文，从每题所给的 A、B、C 和 D 四个选项中，选出最佳选项，并在答题卡上将该项涂黑。

⼴东省实验中学⾃主招⽣试题⼴东省实验中学⾃主招⽣试题数学素质考查卷⼀.选择题：（本⼤题共12个⼩题，每个4分，共48分，将所选答案填涂在机读卡上） 1、下列因式分解中，结果正确的是（）A.2322()x y y y x y -=-B.424(2)(x x x x -=+-C.211(1)x x x x x--=--D.21(2)(1)(3)a a a --=--2、“已知⼆次函数2y ax bx c =++的图像如图所⽰，试判断a b c ++与 0的⼤⼩.”⼀同学是这样回答的：“由图像可知：当1x =时0y <，所以0ab c ++<.”他这种说明问题的⽅式体现的数学思想⽅法叫做（）A.换元法B.配⽅法C.数形结合法D.分类讨论法 3、已知实数x 满⾜22114x x x x ++-=，则14x-的值是（）A.-2B.1C.-1或2D.-2或14、若直线21y x =-与反⽐例函数k y x =的图像交于点(2,)P a ，则反⽐例函数ky x=的图像还必过点（） A. (-1,6)B.(1,-6)C.(-2,-3)D.(2,12)5、现规定⼀种新的运算：“*”：*()m n m n m n -=+，那么51*22＝（）A.54B.5C.3D.9 6、⼀副三⾓板，如图所⽰叠放在⼀起，则AOB COD ∠+∠＝（）A.180°B.150°C.160°D.170°7、某中学对2005年、2006年、2007年该校住校⼈数统计时发现，2006年⽐2005年增加20%，2007年⽐2006年减少20%，那么2007年⽐2005年（）A.不增不减B.增加4％C.减少4％D.减少2％8、⼀半径为8的圆中，圆⼼⾓θ为锐⾓，且θ=，则⾓θ所对的弦长等于（）A.8B.10C.D.169、⼀⽀长为13cm 的⾦属筷⼦（粗细忽略不计），放⼊⼀个长、宽、⾼分别是4cm 、3cm 、16cm 的长⽅体⽔槽中，那么⽔槽⾄少要放进（）深的⽔才能完全淹没筷⼦。

华附、省实、深中、广雅2020届高三年级四校联考(语文)华附、省实、深中、广雅2020届高三年级四校联考语文本试卷共10页，22小题，满分150分。

考试用时150分钟。

注意事项：1.答卷前，考生务必将条形码粘贴在指定区域，用黑色字迹的钢笔或签字笔将自己的姓名和考生号、试室号、座位号填写在答题卡上。

2.选择题每小题选出答案后，用2B铅笔把答题卡上对应的题目选项的答案息点涂黑；如需改动，用橡皮擦干净后，再填涂其他答案。

答案不能答在试卷上。

3.非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卡各题目指定区域内相应位置上；如需改动，先划掉原来的答案，然后再写上新的答案，不准使用铅笔和涂改液。

不按以上要求作答的答案无效。

4.考生必须保持答题卡的整洁。

一、现代文阅读（36分）（一）论述类文本阅读（本题共3小题，9分）阅读下面的文字，完成1～3题。

都市化进程在深入改动与重建当当代界经济社会发展方式的同时，也为当代中国美学带来了新的课题，提供了新的学术生长空间。

都市化进程使当代人的审美认识与审美活动发生了巨大变革，应对这一来自理论与实践两风雅面的挑衅，是中国美学的重要任务。

都市化进程给中国美学带来的影响是多方面的。

以审美对象为例——审美对象即人与世界的统统审美现象和审美活动——古典美学的首要审美对象是大自然与乡村，中国古代的田园诗是这方面最典范的创造；当代美学的首要审美对象是反思、批评工业化及其对古典精神世界的同化，这会合体目前西方当代哲学美学思潮与当代派文学艺术对当代人类同化困境的深入揭示上。

与此分歧，当代都市社会与都市生活中出现了大量的新型精神文明消费品与审美实践活动，如超级市场、广告文明、模特文明、汽车文明、选秀文明、景观设计等，纵然作为美学最间接、最重要的研究对象——文学艺术，与其传统形态相比也发生了重要的变化，并具体再现于以物质和肉体消费为中心的群众文明话语与影像上。

都市化进程给中国美学带来的影响推动了都市美学的理论研究，以当代都市社会中的精神文化消费生态、审美文化及文学艺术为基本研究对象而构建的都市美学的理论研究具有重要意义，也是当下一项亟待开展的研究。

华附、省实、深中、广雅2020届高三年级四校联考英语本试卷8页，满分120分。

考试用时120分钟注意事项：1. 答卷前，考生务必用黑色字迹的钢笔或签字笔将自己的校名、姓名、考号、座位号等相关信息填写在答题卡指定区域内。

2. 选择题每小题选出答案后，请用2B铅笔把答题卡上对应题目的答案标号涂黑；如需改动，用橡皮擦干净后，再选涂其他答案；不能答在试卷上。

3. 非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卡各题目指定区域内的相应位置上；如需改动，先划掉原来的答案，然后再写上新的答案；不准使用铅笔和涂改液，不按以上要求作答的答案无效。

4. 考生必须保证答题卡的整洁。

第二部分阅读理解（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。

AOccasions like anniversaries, weddings and reunions call for special event venues (场地).The following places may have a way o ut. There’s no need to spend money creating atmosphere at special event venues. It’s built right in!Hard Rock Cafe Anchorage415 E. STREET, ANCHORAGE, ALASKA 99501Events, like great music are born of inspiration. Featuring a 13,600-square-foot facility that will seat 275 guests with private event space, we pride ourselves on delivering an exceptional experience with a rock and roll twist for each of our guests.Business Expo Center1960 S. ANAHEIM WAY, ANAHEIM, CALIFORNIA 92805The Business Expo Center i s Orange County’s premier event venue in Anaheim, California. Our flexible 36,000-square-foot expo center is home to space for conferences, trade shows and celebrations. We pride ourselves on providing a memorable experience with excellent flexibility, ser vices, and cost savings. We won’t charge customers for on-site parking and provide high-speed Wi-Fi.Automobile Driving Museum610 LAIRPORT STREET, EL SEGUNDO, CALIFORNIA 90245Centrally located in the South Bay beach community of El Segundo, California, the ADM offers a wonderful venue for private parties and corporate events. Conveniently located 5 minutes south of LAX, right off the 405 and 105 Freeways, the 610 Lairport space has a vintage feel surrounded by our primary automobile collection. We offer several different venues inside and outside our facility for diverse events. To better our service, reservations are needed.Yamashiro Hollywood1999 N. SYCAMORE AVE., LOS ANGELES, CALIFORNIA 90068Yamashiro Hollywood is a restaurant and therefore, all food and beverages must be handled in house. However, guests are allowed to bring in outside wine and champagne for a corkage fee.21. What can you do in Business Expo Center?A. Enjoy free parking.B. Bring in outside wine.C. Experience a rock and roll twist.D. See some automobile collections.22. Which venue do you need to book in advance?A. Business Expo Center.B. Yamashiro Hollywood.C. Hard Rock Cafe Anchorage.D. Automobile Driving Museum.23. What do the four venues have in common?A. They offer optional places.B. They are open to special events.C. They are located in the same state.D. They enjoy convenient transportation.BKyle Cassidy and three other members of the Annenberg Running Group were stretching on the grounds of the University of Pennsylvania, waiting for a few latecomers. The Penn colleagues and other community members meet three days a week for a roughly 30-minute jog and an occasional lecture. That’s right—during some runs, one of them delivers a talk. Topics range from the brain to Bitcoin.But on this day last January, it would not be their normal run. The first clue that something was off was the man who sprinted past them. “Running at an amazing pace,” Cassidy told Runner’s World admiringly. Cassidy discovered why the sprinter was so fleet of foot when another man ran by, yelling, “Help! He took my phone and laptop!”At that, the group did what running clubs do: They ran, trailing the suspect down the streets of Philadelphia until he ducked into a construction site. The runners split up. Cassidy ran around to the far side of the site to cut the thief off while the others wandered the neighborhood hoping he had dumped the loot (赃物) in a backyard.No luck. So they decided to ask residents whether they’d seen the guy. When the y knocked on the door of one row house, they were in for a surprise. Unknown to them, he had already emerged from the construction site—and was hiding behind a bush by that very house. As the owner opened the door, the suspect darted out from behind the bu sh … and right into the arms of campus police, who’d joined the chase shortly behind the runners.The members of this running group are not hard-core athletes. But they do understand the benefit of a little exercise. “Running is typically a useless sport w here you turn fat cells into heat,” Cassidy told The Philadelphia Inquirer. “But occasionally it can be useful, and here was one of those opportunities.”24. Why do the group members gather together?A. To do some stretching.B. To have a regular run.C. To deliver a lecture.D. To cover some topics.25. What does the underlined word “sprinted” in Paragraph 2 probably mean?A. Dashed.B. Pushed.C. Jumped.D. Escaped.26. We can infer that the success of the chase is mainly due to _______.A. the assistance of the runnersB. the owner of the row houseC. the campus police on patrolD. the joint efforts of the people27. Which of the following best describes Cassidy?A. Athletic and generous.B. Courageous and ambitious.C. Helpful and humorous.D. Thoughtful and demanding.CFood experts say washing could spread the germs on your turkey in the kitchen sink or nearby food. But it’s been a challenge trying to convince cooks to stop rinsing(冲洗) off raw poultry. Germs that can make people sick are common in the guts of healthy poultry and are legally allowed to be on raw turkey and chicken. The assumption is that nobody eats their poultry raw, and that thorough cooking will kill the bacteria.The do-not-wash raw poultry advice from the USDA is relatively new and perhaps hasn’t caught on because it goes against the common belief that washing makes things clean, said Chapman. Benjamin Chapman, a study author and food safety expert at North Carolina State University, said the instinct to wash raw poultry goes back at least decades when people relied more on visual clues to spot problems with poultry. Meanwhile, washing hands and surfaces are also important.But food preparation is a complicated act, and germs from poultry can be spread even if it’s not washed, especially when birds are removed from packaging.The USDA-funded study stresses that point. Researchers sprayed raw chicken with a harmless strain of E. coli(大肠杆菌) and watched volunteer cooks at test kitchens. Among those who washed their raw chicken, about a quarter ended up spreading the bacteria to their lettuce. But even some of those who did not rinse the chicken got germs on the lettuce. And there are other opportunities for germs to survive on turkeys: melting and cooking.To ensure a bird is thoroughly cooked, they say to use a thermometer to check that the deepest and thickest parts of it have reached 165 degrees. Even after the meal is cooked, you aren’t out of the danger zone. To keep turkeys and other leftove rs safe, experts say they should be refrigerated after two hours.28. People don’t accept USDA’s advice because _______.A. the advice is relatively newB. cleaning seems more trustworthyC. cooks clean the turkey before cooking itD. heat can kill most germs and no one eats raw food29. What can be concluded from Paragraph 4?A. Food packages carry germs.B. Hands and surfaces are easy to get E. coli.C. Germs from a turkey can be spread whether it is washed or not.D. Multiple methods should be applied to food to get rid of germs.30. Which way may help to cook a turkey safely?A. Rinse off the turkey before it is heated.B. Keep the turkey away from the lettuce and refrigerator.C. Wash hands and packages before taking out the turkey.D. Use a thermometer to check the temperature of the turkey.31. From which section of a magazine is the text probably taken?A. Culture.B. Science.C. Education.D. Medicine.DMicroplastics are everywhere in our environment. It’s hardly surprising that the tiny fragments have also been found in humans. A new study shows that Americans are consuming as many as 121,000 particles each year.Measuring 50 to 500 microns in length, microplastics come from a variety of sources, including large plastics that break down into smaller and smaller pieces. Therefore, much remains unknown about the common existence of these materials within the human body, as well as their impact on human health.Hoping to fill in some of these gaps, a research team led by Kieran Cox, a PhD candidate at the University of Victoria, looked at 26 papers assessing the amount of microplastics in commonly consumed food items, among which are seafood, sugars, salts, honey, alcohol and water. The team also evaluated the potential consumption of microplastics through inhalation (吸入) using previously reported data on microplastic concentrations in the air and the Environmental Protection Agency’s reported respiration rates. Based on these data, the researchers calculated that our annual consumption of microplastics via food and drink ranges from 39,000 to 52,000 particles. When microplastics taken in through inhalation are taken into account, the range jumps to between 74,000 and 121,000 particles per year.The authors of the study found that people who drink exclusively from plastic water bottles absorb an additional 90,000 microplastics each year, compared to 4,000 among those who only consume tap water. “This shows that small decisions, over the course of a year, really matter and have an impact.” Cox says. The new study, according to its authors, was the first to investigate “the accumulative human exposure” to microplastics. But in all likelihood, the research tells only a small part of the entire story. Collectively, the food and drink that the researchers analyzed represent 15 percent of Americans’ caloric intake. The team could not account for food groups like fruits, vegetables and grains because there simply is not enough data on their microplastic content.For those worried about microplastic consumption, cutting down bottled water is a good place to start. But to the heart of the problem, we have to stop producing and using so much plastic.32. What makes it difficult to know microplastics commonly exist in the human body?A. The quality.B. The quantity.C. The shape.D. The size.33. How did Kieran Cox’s team calculate the potential consumption of microplastics?A. By studying papers.B. By comparing the impacts.C. By analyzing the data.D. By conducting experiments.34. Which of the following is true according to the text?A. Drinking less plastic bottled water helps to take in fewer microplastics.B. The study is among the earliest to investigate human exposure to microplastics.C. Cox’s team gained comprehensive information of microplastics taken in by humans.D. People consume 74,000 to 121,000 particles of microplastics per year from food anddrink.35. What is the best title for the text?A. The Potential Problems of MicroplasticsB. Microplastics Coming From Various SourcesC. Microplastics Found Within Human BodiesD. The Impact of Microplastics on Human Health第二节（共5小题；每小题2分，满分10分）根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。