天津耀华滨海学校2019-2020学年第二学期统练7
天津滨海新区2019-2020学年度第二学期期末检测数学试题及答案
七年级数学试卷 第1页（共8页） 七年级数学试卷 第2页（共8页）滨海新区2019-2020学年度第二学期期末检测七年级数学试卷本试卷分为第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分。
试卷满分120分。
考试时分钟。
答卷前，考生务必将自己的学校、姓名、准考证号、座位号填写在“答题卡”上。
答题时，“答题卡”上，答案答在试卷上无效。
考试结束后，将本试卷和“答题卡”一祝你考试顺利！第Ⅰ卷（选择题）1．请用黑色字迹的签字笔，将正确答案的代号填在“答题卡”相应的表格中。
2．本卷共12小题，共36分。
12小题，每小题3分，共36分．在每小题给出的四个选项中，只有49的算数平方根是（A ）7（B ）7±（C（D ）在平面直角坐标系中，点M ），（33--在 （A ）第一象限 （B ）第二象限 （C ）第三象限 （D ）第四象限（A 4=- （B ）2=83 （C ）416=－ （D ）4 5的值在（A ）1与2之间 （B ）2与3之间 （C ）3与4之间 （D ）4与5之间（A ）50. （B ）15（C ）25（D （6）如图，直线AB 经过点O ，若OC ⊥OD ，∠1=32°，则∠2的大小是（A ）78°（B ）68°（C ）58°（D ）32°（7）如图，能判定AD ∥BC 的条件是（A ）∠1=∠2 （B ）∠2=∠3 （C ）∠1=∠4（D ）∠3=∠4（8）下面的调查中，适合采用全面调查方式的是（A ）调查某班学生的体重 （B ）检测某城市的空气质量（C ）调查春节联欢会的收视率 （D ）调查某批次汽车的抗撞击能力 （9）已知a < b ，则下列选项错误．．的是 （A ）a +2 < b +2 （B ）a －1 < b －1 （C ）33ba < （D ）－3a <－3b（10）下列命题中，为真命题的是（11）若5425>+a ，则a 取值的最小整数值是 （A ）4（B ）5（C ）6（D ）7（12）已知关于x ，y 的二元一次方程组231ax+by=ax by=-⎧⎨⎩，的解为11x=y=⎧⎨⎩，.则a 的值是（A ）2-（B ）2（C ）34 （D ）4（A ）两个锐角之和一定为钝角（B ）相等的两个角是对顶角 （C ）同位角相等（D ）垂线段最短第（6）题1O ABDC 2第（7）题2341B CD A七年级数学试卷第3页（共8页）七年级数学试卷第4页（共8页）密封线内不得答题……………………………………………………………………………………………………………………………………第Ⅱ卷（非选择题）注意事项：1．用黑色字迹的签字笔将答案写在“答题卡”上。
2020届天津市东丽区天津耀华滨海学校高三年级上学期第二次统练数学试卷
天津市东丽区天津耀华滨海学校2019～2020学年度高三年级上学期第二次统练数学试卷一、选择题：本大题共9小题，每小题5分，共45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2{|20}A x x x =--<，{|1}B x x =>，则A B =U （ ） A. (1-，1) B. (1，2)C. (1-，)+∞D. (1，)+∞【答案】C2.若0,0a b >>，则“4a b +≤”是 “4ab ≤”的（ ） A. 充分不必要条件 B. 必要不充分条件 C. 充分必要条件 D. 既不充分也不必要条件【答案】A3.已知双曲线()22210x y a a-=>，则a =（ ）A.B. 2C. 4D.12【答案】B4.已知非零向量a r ，b r 满足2a b =r r ，且()a b b -⊥r r r ，则a r 与b r的夹角为( )A.π6B.π3C.2π3D.5π6【答案】B5.记n S 为等差数列{}n a 的前n 项和．已知4505S a ==，，则 A. 25n a n =- B. 310n a n =- C. 228n S n n =-D. 2122n S n n =- 【答案】A6.已知0.20.32log 0.2,2,0.2a b c ===，则A. a b c <<B. a c b <<C. c a b <<D. b c a <<【答案】B7.已知(0α∈，)2π2cos 21αα=+，则sin α=（ ）A.15C.3【答案】C8.我国古代典籍《周易》用“卦”描述万物的变化．每一“重卦”由从下到上排列的6个爻组成，爻分为阳爻“”和阴爻“”，如图就是一重卦．在所有重卦中随机取一重卦，则该重卦恰有2个阳爻的概率是（ ）A.516B.1564C.2132D.1116【答案】B9.设函数()f x 的定义域为R ，满足(1) 2 ()f x f x +=，且当(0,1]x ∈时，()(1)f x x x =-.若对任意(,]x m ∈-∞，都有8()9f x ≥-，则m 的取值范围是A 9,4⎛⎤-∞ ⎥⎝⎦B. 7,3⎛⎤-∞ ⎥⎝⎦C. 5,2⎛⎤-∞ ⎥⎝⎦D. 8,3⎛⎤-∞ ⎥⎝⎦【答案】B二、填空题：本大题共6小题，每小题5分，共30分.10.已知复数(2)(1)a i i ++为纯虚数，其中i 为虚数单位，则实数a 的值是________. 【答案】211.设抛物线28y x =的焦点为F ，准线为l ，则以F 为圆心，且与l 相切的圆的方程为_________. 【答案】22(2)16x y -+=12.如图，长方体1111ABCD A B C D -的体积是60，E 为1CC 的中点，则三棱锥C EBD -的体积是________.【答案】513.设0x >，0y >，35x y +=xy的最小值为___________.【答案】6214.在6x ⎛+ ⎝的二项展开式中，常数项的值为__________【答案】1515. 在四边形ABCD 中，AD BC ∥，AB =，5AD = ，30A ∠=︒ ，点E 在线段CB 的延长线上，且AE BE =，则BD AE ⋅=u u u r u u u r__________. 【答案】1-.三、解答题：本大题共2小题，共25分.解答应写出文字说明、证明过程或演算步骤.16.在ABC ∆中，90ABC ∠=︒，4AB =，3BC =，点D 在线段AC 上，若45BDC ∠=︒，求BD 和cos ABD ∠.【答案】5，10. 在ABC ∆中,90ABC ∠=︒,4AB =,3BC =, 由勾股定理得,5AC =,∴4sin 5C =,3cos 5C =,在BCD ∆中,3BC =,4sin 5C =,45BDC ∠=︒,∴由正弦定理得4sin sin 552BC BD C BDC ===∠, ∵cos cos()CBD BDC C ∠=-∠+∠cos cos sin sin BDC C BDC C =-∠∠+∠∠34252510=-+⨯=∴sin 10CBD ∠==, ∵90ABC ∠=︒,∴cos cos(90)ABD CBD ∠=︒-∠sin CBD =∠=17.设{}n a 是等差数列，110a =-，且210a +，38a +，46a +成等比数列. ⑴求{}n a 通项公式；⑵记11(10)2n a n n c a +=+，求1ni i c =∑.【答案】（1）212n a n =-； （2）1(34)4169n n +-+. （1）由题,设等差数列{}n a 的公差为d , ∵210a +,38a +,46a +成等比数列,∴2243(10)(6)(8)a a a ++=+,即2(1010)(1036)(1028)d d d -++-++=-++,也即2440d d -+=,解得2d =,∴1(1)102(1)212n a a n d n n =+-=-+-=-, 即数列{}n a 的通项公式为212n a n =- （2）由（1）可得1121(10)2(22)2(1)4n a n n n n c a n n +-=+=-=-∴12311041424(2)4(1)4nn n ii cn n -==⨯+⨯+⨯++-+-∑L两边同乘以4,得14ni i c ==∑2341041424(2)4(1)4n n n n +⨯+⨯+⨯++-+-L∴23113444(1)4nn n ii cn +=-=+++--∑L2114(41)(1)441n n n -+-=---14316433n n +-=- ∴11(34)4169n ni i n c +=-+=∑。
《附15套高考模拟卷》天津市耀华中学2019-2020学年度高三年级第二学期第二次月考含解析
天津市耀华中学2019-2020学年度高三年级第二学期第二次月考一、单项选择题：本题共6小题，每小题4分，共24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、如图所示，A 、B 、C 是三级台阶的端点位置，每一级台阶的水平宽度是相同的，其竖直高度分别为h 1、h2、h 3，将三个相同的小球分别从A 、B 、C 三点以相同的速度v 0水平抛出，最终都能到达A 的下一级台阶的端点P 处，不计空气阻力。
关于从A 、B 、C 三点抛出的小球，下列说法正确的是（ ）A ．在空中运动时间之比为t A ∶tB ∶tC =1∶3∶5B ．竖直高度之比为h 1∶h 2∶h 3=1∶2∶3C ．在空中运动过程中，动量变化率之比为ACA B P P P t t tn n n n n n ：：=1∶1∶1 D ．到达P 点时，重力做功的功率之比P A ：P B ：P C =1：4：92、如图所示，矩形线圈处在磁感应强度大小为 B 、方向水平向右的匀强磁场中，线圈通过电刷与定值电阻 R 及理想电流表相连接，线圈绕中心轴线OO ' 以恒定的角速度ω 匀速转动，t=0 时刻线圈位于与磁场平行的位置。
已知线圈的匝数为n 、面积为S 、阻值为r 。
则下列说法正确的是（ ）A ．t=0 时刻流过电阻 R 的电流方向向左B ．线圈中感应电动势的瞬时表达式为e = nBS ω sin ωtC ．线圈转动的过程中，电阻 R 两端的电压为nBS R R rω+ D ．从 t=0 时刻起，线圈转过 60°时电阻 R 两端的电压为()2nBS R R r ω+ 3、如图，理想变压器的原线圈接在输出电压有效值不变的正弦交流电源上，副线圈的中间有一抽头将副线圈分为匝数分别为n 1和n 2的两部分，抽头上接有定值电阻R 。
开关S 接通“1”、“2”时电流表的示数分别为I 1、I 2，则12I I 为（ ）A．12n n B．21nn C．2122nnD．12nn4、某发电机通过理想变压器给定值电阻R提供正弦交流电，电路如图，理想交流电流表A，理想交流电压表V的读数分别为I、U，R消耗的功率为P。
天津市滨海学校2019_2020学年高一下学期期中考试英语试题 Word版含解析
2019—2020学年度第二学期高一年级英语学科阶段检测试卷I. 听力（共两节，满分15分）第一节（共5小题；每小题l分，满分5分）听下面五段对话。
每段对话后有一小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. How will the speakers get to the concert?A. By bus.B. By undergroundC. By car2 What does the man think of the food?A. Boring.B. Special.C. Great.3 How many long walks did the man have last week?A. One.B. Two.C. Three.4 What are the speakers mainly talking about?A. The man’s sister.B. Jane’s job.C. A car.5 Where are the speakers?A. In a hotel.B. In a restaurant.C. In a shop.第二节（共10个小题，每小题1分，满分10分）听下面5段对话或独白。
每段对话或独白后有几个小题，从题中所给的A、B、C 三个选项中选出最佳选项。
听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。
每段对话或独白读两遍。
听第6段材料，回答第6、7题。
6. How much did the man pay for the books?A. $20.B. $40.C. $80.7. What will the man probably do?A. Take the course of History 101.B. Put up some advertisements.C. Sell the books to the bookstore.听第7段材料，回答第8、9题。
天津耀华滨海学校2019-2020学年高三下学期阶段检测题(四)地理试题(word无答案)
天津耀华滨海学校2019-2020学年高三下学期阶段检测题（四）地理试题一、单选题(★★★★)1 . 小明于北京时间6月18日8：30从上海出发去纽约出差（航线甲），会议结束后他于当地时间6月23日16：00从纽约返回（航线乙），单程用时约15小时。
去程中小明从高空俯视阿拉斯加东南沿海地区，被地面上的巨幅“抽象画”所震慑—黑白相间的线条在大地上旋转、交错、卷曲。
下图为小明往返航班路线和阿拉斯加东南沿海景观。
据此完成下面小题。
【小题1】若小明乘飞机往返为晴朗天气，去程时不想被阳光照射，返程时想欣赏我国北方日落景色。
他的座位选择是A．去程左侧，回程右侧B．去程、回程均为右侧C．去程右侧，回程左侧D．去程、回程均为左侧【小题2】小明的旅途中A．去程时飞机先向东南后向东北B．去程时为白天，全程艳阳高照C．返程时飞机先向西北后向西南D．返程时可以欣赏北极极光景色【小题3】巨幅“抽象画”中黑色线条的主要成因是A．冰川堆积B．流水堆积C．冰川侵蚀D．流水侵蚀(★★)2 . 石古湾村位于湖南省南部新田县，是国家级贫困村。
该村三面环山，植被茂密。
村内有一口泉眼，全年水量充盈，且每天会出现多次像潮汐一样的涨落现象，被称为“潮汐泉”。
其形成与虹吸作用有关：当蓄水溶洞水位达到甲水位时，地下水会通过曲管越过高处流出，形成泉涌；当洞内水位降至乙水位时，泉水水位回落，如图所示。
据此完成下面小题。
【小题1】潮汐泉所在地区A．石峰林立，多四面陡崖，山顶平坦狭小B．降水丰富，地势落差大，水电开发潜力大C．风蚀作用强烈，地面支离破碎，垄槽相间D．受流水溶蚀和沉积作用，山奇、水秀、石美、洞异【小题2】下列条件中，与潮汐泉形成相关性最低的是A．降水季节变化大B．有较长且有坡度的暗河C．有虹吸式管道D．有较充足的蓄水空间【小题3】若该地植被破坏严重，对潮汐泉可能造成的影响是A．每次泉涌的水量减少B．泉涌的频次减少C．暗河的含沙量减少D．溶洞发展速度加快(★★)3 . 幼发拉底河89℅的流量来自上游。
天津市耀华中学2019-2020学年高二第二学期外研版选修七Module1-2检测(含答案)
高二年级B7M1M2测验试卷2I. 单项填空（共30小题；每小题1分，满分30 分）1. ________ i s no doubt that he will pass the exam.A. find 13. --- How about eighto A. needs'clock outtelcinema? B. meets 14. It 'a pity that so many ________ historical records were destroyed.A. meanin glessB. powerlessC. valuelessD. priceless15. It worried her a lot ______ she could not afford ______ she liked.16. Danby left word with my secretary _____ he would call aga in in the after noon.A. whoB. thatC. as 17. Could I speak to ______ is in charge of International Sales, please?A. anyoneB. some oneC. whoever 18. ---Could you please tell me more about the city?---Sorry, I ' m a newcomer. I k no twing else ________ you know now.A. except forB. but thatC. except whatD. but for 19. The problem _______ h im.A. upsettedB. upsetC. was upsetD. upsets to 20. With only five minutes ________ before the teacher collected our exam papers, I felt uneasy as I had not yetA. ThereB. ItC. ThisD. That2. I wish he ______ present at the meeting, but he has jus ______ to Beijing. A. could; bee n B. were; gone C. was; bee n3. Usually children are allowed to ______ when they are six years old.A. jo in schoolB. atte nd the schoolC. atte nd school 4. --- ________ I went to see the doctor, I had to wait about 50 minutes. ---So you must make an appo in tme nt in adva nee. A. Every time B. Since C. While 5. To our great _______ , his parents were ________ at his mark.D. would; goneD. jo in the school D. Even if A. surprises; surprised B. surprises; surpris ing C. surprise; surprised 6. I have no dreams ____ t o have a happy life. A. rather tha n B. more tha n C. other tha nD. surprise; surpris ing D. less tha n 7. He had a lot of friends, none of _____ c ould lend him any money. A. whom B. them C. which D. who8. Why do you stand and watch the milk _______ ? A. boili ngB. boiledC. from boil ingD. havi ng bee n 9. You can find whatever you need at the shopping center, ________ is always busy at the weekend.A. thatB. whereC. whatD. which 10. You should un dersta nd the traffic rule by now. You ' vead it _______ ofte n eno ugh.A. explai ningB. to expla inC. expla in 11. Sometimes we are asked _______ the likely result of an action will be. A. that we thi nk B. what we thi nk C. what do we thinkD. expla ined D. that what we thi nk 12. ---How did you _______the movie last night? ---Oh , both in teresti ng and instructive. B. con siderC. thi nkD. feel ---That _______ m e fine.C. satisfiesD. suits A. whe n; which B. that; whatever C. whether; what D. as; everyth ingD. which D. no matter whochecked the an swers.A. to goB. goingC. goneD. to be gone 21. He said, “ They are repeat and ____________ every respect from us all. ”A. deserveB. receiveC. preserveD. perceive 22. We don ' doubt ______ the people in Beichuan County will recover from the disaster soon and rebuild theirhomes better tha n before.23. I think he is ______ to win, but rm not sure.A. possibleB. likelyC. impossibleD. certa in 24. For breakfast he only drinks juice from fresh fruit _______ on his own farm. A. grow nB. being grow nC. to be grow nD. to grow 25. To every on e's joy, the famous film star was _______ mayor of the city. A . adopted B . appo in ted C . n amed after D . in the n ame of26. His remarks _______ me in my opinion that he was a very con siderate boy. A . concerned B . con tacted C . con firmed D . con sidered27. Teaching is not just a simple piece of work; it's an art _________ a scienee. A . is based onB . based withC . based on 28 . One of the rooms was ________ for a yoga class. A . left beh indB . set asideC . put back 29 . Do you want that cake ? _______ , I'll have it. A . If soB . If possibleC . If n ecessary30 . She _______ herself successfully in court and the judge declared her innocent. A . expressed B . described C . replaced II.完形填空（共20小题；每小题1.5分，满分30分）In our discussion with people on how education can help them succeed in life, a woman remembered the first meeti ng of an in troductory Lcourse about 20 years ago.The professor 2 the lecture hall, placed upon his desk a large jar filled with dried beans （ 豆 ）,and invited the students to 3 how many beans the jar contained. After 4 shouts of wildly wrong guesses the professor smiled a thin, dry smile, announced the 5 answer, and went on saying, “ You have just 6 an importantless on about scie nee. That is: NeverT. your own sen ses ” Twenty years later, the 8 could guess what the professor had in mind. He 9 himself, perhaps, as in vit ing his students to start an exciting _AQ into all unknown world invisible （ 无 形 的 ）to the 11 , which can be discovered only through scientific 12 . But the seventeen-year-old girl could not accept or even 13 the in vitati on. She was just 14 to un dersta nd the world. And she 15 that her firstha nd experie nee couldbe the 16 .The professor, however, said that it was 17 . He was taking away her only _____ 18 for knowing and was providing her with no substitute （ 替代）. re l ember feeling small and_19 , "thewoman says, andI did the only thing I could do. I 20_ the course that after noon, and I have n' t gorsenn e ar Science 1. A. artB. historyC. scie neeD. math 2. A. searched forB. looked atC. got throughD. marched into 3. A. cou ntB.guessC. reportD. watch 4. A. warni ngB. givi ngC. tur ning awayD. liste ning to 5. A. readyB. possibleC. correctD. difficult 6. A. learnedB. preparedC. taughtD. take n 7. A. loseB. trustC.sharpenD.show 8. A. 1ecturer B. scie ntist C. speakerD. woma nA. thatB. ifC. whatD. whether D . depended on D . moved aside D . If not D . defe nded9. A. described B. respected C. saw D. served10. A. voyage B. moveme nt C. change D. rush11. A. professor B. eye C. kno wledge D. light12. A. model B. senses C. spirit D. methods13. A. hear B. make C. prese nt D. refuse14. A. suggest ing B. begi nning C. prete nding D. waiti ng15. A. believed B. doubted C. proved D. expla ined16 . A. growth B. stre ngth C. faith D. truth17. A. firm B. in terest ing C. wrong D. acceptable18. A. task B. tool C. success D. conn ection19. A. cruel B. proud C. frighte ned D. brave20. A. dropped B. started C. passed D. missedIII.阅读理解（共20小题；每小题2分，满分30分）ADo you forget to turn off the lights and heaters whe n you go out of a room? In 2040 it will n ot matter. They will turn themselves off and on again when you return. Y ou will choose the temperature for each room, the lighting and the humidity( 湿度).A sensor will detect the presenee of a human (and, with luck, ignore the dog!) and turn the systems on, and whe n the huma ns leave it will tur n them off aga in.The sensors will work through the central home computer, and they will do much more than just turn the fires and lights on and off for you. They will detect faulty electrical applia nces, plugs or switches, isolate them so that they cannot harm anyone, and the n warn you that they n eed repair. They will detect fire and if you are out of the house, the computer will call the fire brigade. It will also call the police if the sensors detect an intruder. This will not be too difficult because the locks on the outside doors will be electr on ic. You will ope n them using your pers onal card —the one you use for shopp ing —may be using a nu mber known only to you.It will be impossible to lose the key, and a house-breaker will have to tamper with the lock or with a win dow.It is not very difficult to make such tampering send a signal to the computer.The computer will be an entertainer, and most of your entertainment will come right into your home. It does now, of course, but by 2040 “ en terta inment ” will mean much more. For one thi ng, you will be able to take part actively, rather tha n just watchi ng.I. __________________________________________ The author intends to tell us that in 2040A. we will live without lights and heatersB.we will use more lights and heatersC. there will be no switches of lights and heatersD. lights and heaters will be on and off automatically2. Which of the following statements is NOT true?A .The sen sor is multi-fu nction al.B. Without a computer, the sensor cannot do much.C. The sensor will detect fire and make an emergency call.D. You can be taken for an intruder if you tamper with the lock or with a window.3. Accord ing to the author, i n 2040, new tech no logy willA.free us from the keys we use todayC. make the locks out of date4. Tha nks to computers, in 2040 people willA. have no en terta inment outsideC. be con trolled by computers B. turn everyth ing into sen sorsD. get rid of all crimesB. replace TV with computersD. have more fun at homeB. Life at Home in the Y ear 2040D. Lights and Heaters in the Year 20405. ______________________________________ The best title for the passage might beA. Sen sors and ComputersC. The developme nt of scie nee and Tech no logyThe Great Fire of London started in the very early hours of September 2, 1666. In four days it destroyed morethan three-quarters of the old city, where most of the houses were woode n and close together. One hun dred thousa nd people became homeless, but only a few lost their lives.The first started on Sun day morning in the houses of the King ' baker in Puddi ng Lane. The baker, with his wifeand family, was able to get out through a window in the roof. A strong wind blew the fire from the bakery into a small hotel n ext door. Then it spread quickly into Thames Street. That was the begi nning.By eight o ' clock three hun dred houses were on fire. On Mon day n early a kilometer of the city was bur ningalong the River Thames. Tuesday was the worst day. The fire destroyed many well- known build in gs, old St. Paul ' s and the Guildhall among them.Samuel Pepys, the famous writer, wrote about the fire. People threw their things into the river. Many poorpeople stayed in their houses un til the last mome nt. Birds fell out of the air because of the heat.The fire stopped only whe n the King fin ally ordered people to destroy hun dreds of build in gs in the path of thefire. With no thi ng left to burn, the fire became weak and fin ally died out.After the fire, Christopher Wten, the architect, wan ted a city with wider streets and fine new houses of stone.In fact, the streets are still n arrow, but he did build more tha n fifty churches, among them is the new St. Paul The fire caused great pain and loss, but after it London was a better place: a city for the future and not just of thepast.6. The fire began in ____ .A. a hotelB. the palaceC. Puddi ng LaneD. Thames Street7. The underlined word “ family ” in thpasagcaph mean ____ .A. homeB. childre nC. wife and husba ndD. wife and childre n8. It seems that the writer of the text was most sorry for the fact that _____ .A. some people lost their livesB. the birds in the sky were killed by the fireC. many famous buildings were destroyedD. the King ' s bakery was budowln9. Why did the writer cite（弓I用）Samuel Pepys?A. Because Pepys was among those putt ing out the fire.B. Because Pepys also wrote about the fire.C. To show that poor people suffered most.D. To give the reader a clearer picture of the fire.10. How was the fire put out according to the text?A. The King and his soldiers came to help.B. All the wooden houses in the city were destroyed.C. People man aged to get eno ugh water from the river.D. Houses sta nding in the direct ion of the fire were pulled dow n.Have you ever found yourself in this situati on: You hear a song you used to sing whe n you were a child —a bit of nostalgia （怀旧）or “ blast from the past, ” as we say. But it is not a distant childhood memory. The words come back to you as clearly as whe n you sang them all those years ago.Researchers at the Uni versity of Edin burgh studied the relati on ship betwee n music and rememberi ng a foreig n Ian guage. They found that rememberi ng words in a song was the best way to remember eve n one of the most difficult Ian guages.Here is what they did. Researchers took 60 adults and randomly divided them into three groups of 20. Then they gave the groups three differe nt types of -an d-repeatis” nlearning con diti ons. Researchers had one group sirtypspeak the words. They had the sec ond group speak the words to a rhythm, or beat. And they asked the third group to sing the words.All three groups studied words from the Hungarian Ianguage for 15 minutes. Then they took part in a series of Ian guage tests to see what they remembered.Why Hun garia n, you ask? Researchers said they chose Hun garia n because not many people know the Ian guage. It does not share any roots with Germanic or Romance Ianguages, such as Italian or Spanish. After the tests were over, the sin gers came out on top. The people who learned these new Hun garia n words by singing them showed a higher overall performa nce. They did the best in four out of five of the tests. They also performed two times better than those who simply lear ned the words by speak ing them.Dr. Katie Overy says singing could lead to new ways to learn a foreign Ianguage. The brain likes to rememberthings whe n they are contained in a catchy or memorable tune.Dr. Ludke said the findings could help those who struggle to learn foreign Ianguages. On the University of Edin burgh ' s website Ludke writes, “ This study provides the first experime ntal evide nce thaste n-an d-repeat singing method can support foreig n Ian guage lear ning, and ope ns the door for future research in this area. ”11. The “ song ” mentioned in the first paragraphnitended to ________ .A. recall the pastB. amuse the readersC. in troduce the topicD. compare the past with the prese nt12. According to the passage which Ianguage doesn ' t share the sGmuerarafevoiitlRomance Ianguages?A. Hun garia nB. SpanishC. Italia nD. En glish13. From the last two paragraphs, we can conclude that _______ .A. singing is the best way to learn a foreign IanguageB. brain probably works best when foreign Ianguage learners sing the wordsC. a listen-repeat method is very effective for any Ianguage learnerD. Dr. Katie Overy and Dr. Ludke disagree with each other14. What' s correct about the study undertaken by the researchers at the University oEdinburgh?A. Altogether twenty adults were tested in the study.B. People in the 3rd group performed as well as the other 2 groups.C. People in the 2nd group were asked to speak the words to a beat.D. In the study 60 adults were divided into 3 groups according to abilities.15. In which situation can the finding of the research be applied?A. A mother is going to teach her baby how to speak.B. A child is going to have his first music less on.C. A student is going to learn a new English song.D. An American is going to learn some Chinese.V.阅读表达（每小题2分；满分10分）I stood at the edge of the cliff. The wind stung my eyes, cutt ing into my skin. Dark-feathered birds circled the air, swooping （俯冲）low over the ocean every now and then to catch their dinner. Hundreds of feet below, the deep ocean beat against the rough sandy shore. I took a deep breath, filling my lungs with excitement ——and at the same time, fear.Behind me, I heard the rest of the crew start to mutter. I was here for the shooting of a movieas I was one of the lead actors in the film Dangerous Things , and this scene was right in the middle of the climax (故事的高潮).苴was vital that this went right.The director had talked to me about getting a stunt double ( 替身演员),but I ' d persuadedhim that I could handle the dive. I ' d taken a diving course a few years ago, and I ' d beswim ming less ons since I was five years old. I had bee n pretty con fide nt that I could do this —— up till now.Some one called out, “ Ceria, you don ' t have to do this! Are you sure you want to dive?was one of the producers, C allie Evans. I knew I couldn ' t turn back now. I couldn ' t bear to see the disappo in ted look on the director ' s face whe n he was told that I could n ' t do it.At that moment, all my fears and worries broke free. The expectation of adventure andvictory seemed to move all the hesitation. I swooped downwards. The air on either side of me cutinto my extended arms. I knew that this wonderful feeling of flight would only last a fewsec on ds, yet time seemed to slow dow n so I could hear the thrilled whoops of my crew and around of applause that seemed to echo in my pounding ears.1. At the begi nning, how did the author feel about what she was going to do? (No more tha n 3words)2. What does the underlined sentence in Paragraph 2 mean in English? (No more than 15 words)3. Why was the author that con fide nt in divi ng? (No more tha n 10 words)4. What was the crew ' s reaction while the authordiving down? (No more than 10 words)5. How do you like the author? Please explain why. (No more than 25 words)答案：单选：1-5ABCAC 6-10CAADD 11-15BADDB 16-20BCCBA 21. AABAB 26. CCBDD完型：36-40: CDBDC 41-45: ABDCA 46-50: BDABA 51-55 DCBCA阅读理解：DCADB CBCDD CABCD阅读表达1. She felt excited and frightened / fearful.2. It was important that the scene was properly shot.Or: (Because it was the climax of the movie), the dive must perform successfully / well.3. Because she had taken diving and swimming courses.4. The crew cheered loudly for her.5. I think the author was brave and con fide nt, because she could overcome the fear to challe ngeherself and enjoy success.Or: I think she was brave because she didn ' t chicken out when facing challenges.。
天津市滨海七校2020届高三数学下学期联考试题含解析
，
又因为 ，所以 ，
所以 .
故选：D.
【点睛】本题主要考查了平面向量的基本定理的应用，其中解答中熟练应用平面向量的基本定理，熟练应用向量的运算法则是解答的关键，着重考查了推理与运算能力，属于基础题.
9.已知函数 ，若函数 （ 且 ）在区间 上有4个不同的零点，则实数a的取值范围是（）
又由莞第一天长高一尺，每天长高前一天的两倍，则莞生长构成首项为 ，公比为 的等比数列，其前 项和为 ，
又因为 ，即 ，解得 .
故选：B.
【点睛】本题主要考查了等比数列的实际应用，其中解答中认真审题，熟练应用等比数列的通项公式和前 项和公式，列出方程求解是解答的关键，着重考查了分析问题和解答问题的能力，属于基础题.
4.在 中，内角 ， ， 的对边分别为 ， ， ，已知 ， ， ，则 的面积为（）
A. 2B. C. 4D.
【答案】B
【解析】
【分析】
由正弦定理化简得 ，再由余弦定理得 ，进而得到 ，利用余弦定理，列出方程求得 ，最后结合三角形的面积公式，即可求解.
【详解】在 中， ，
由正弦定理，可得 ，即 ，
又由余弦定理可得 ，可得 ，
D.当 时，函数g（x）的值域是[0，2]
【答案】B
【解析】
【分析】
先根据题意化简函数，然后根据题意求出周期，再根据变换求出g（x），然后判断选项即可．
【详解】 ＝sinωx 2sin( )，
由题意知函数周期为π，
则 ，ω＝2，
从而 ＝2sin( ），
把函数 的图象沿x轴向左平移 个单位，
横坐标伸长到原来的2倍得到函数 ＝2sin( )，
A. B. C. D.
天津市耀华嘉诚国际中学2019-2020学年第二学期线上学习阶段性评估检测七年级语文试卷
天津市耀华嘉诚国际中学2019—2020学年度第二学期线上学习阶段性评估检测七年级语文试卷本试卷分为第Ⅰ卷、第Ⅱ卷两部分。
试卷满分100分。
考试时间60分钟。
答卷前，检查自己的设备，将自己的姓名、考号准确填写。
答题时，将答案写在答题纸上，检测结束后，将本试卷按要求上传。
第Ⅰ卷一、选择题（每小题3分，共60分，请将答案填涂在答题卡上）1．下列词语中加点字注音完全正确的一项是( )A．殷．红(yīn)疙．瘩(gē)亘．古（gèn）诧．异(chà)B．哺．育（bǔ）镐．头（gǎo）嗥．鸣(háo) 狂澜．(lán)C．喧．闹(xuān) 晌．午(xiǎng)烦躁．(zào) 哀悼．(dào)D．塌．败(tā) 震悚．(sǒng)愧怍．(zuò) 憎．恶(zèng)2．下列选项中书写无误的一项是（）A. 收敛哽咽妇儒皆知家喻户晓B. 崎岖斓语气冲斗牛锋芒毕露C. 赫然怪诞莫名其妙颠沛流离D. 拖沓竹蔑刮目相看群蚁排衙3．依次填入下列横线的词语正确的一项是（）送给医疗队的礼物中，孩子们的画引人注目。
武汉当地的中小学生们纷纷拿起画笔，向心中的白衣战士。
画作上，一面面红旗迎风飘扬，医护人员长出了天使的翅膀，病毒被重拳。
这场没有硝烟的战争，不仅让湖北本地的中小学生深受教育，全国各地居家学习的中小学生，都在从未经历过的人生里，上了一堂生动的爱国主义教育课。
A.敬意击倒体验B.致敬击倒体验C.致敬击破体会D.敬意击破体会4．下列加点词语使用不当的一项是( )A．撒贝宁主持的《开讲啦》节目鲜为人知．．．．，其青春活泼的主持风格深受广大青少年朋友青睐。
B．本次大会召开以后，各部门发扬愚公移山精神，锲而不舍．．．．地推进各项工作。
C．精彩的演奏戛然而止．．．．，一直鸦雀无声的大厅里，随即响起了雷鸣般的掌声。
D．看到浩浩荡荡的长江一泻千里．．．．，气势磅礴，我们的心胸变得更加开阔。
天津市耀华中学2019-2020学年度第二学期期末考试精华试题
天津市耀华中学2019-2020学年度第二学期期末考试精华试题4．已知a b <，c 是有理数，下列各式中正确的是()A ．22ac bc <B ．c a c b -<-C ．33a c b c -<-D ．bcac <11．为了了解我市参加中考的75000名学生的视力情况，抽查了1000名学生的视力进行统计分析，下面四个判断中，正确的是()A ．75000名学生是总体B ．1000名学生的视力是总体的一个样本C ．每名学生是总体的一个个体D ．上述调查是普查17．若方程组213212x y x y -=⎧⎨+=⎩的解也是二元一次方程511x my -=-的一个解，则m 的值应等于18．不等式组⎪⎩⎪⎨⎧≥-->+2321123x x 的整数解为．24．某电器超市销售每台进价分别为200元、170元的A 、B 两种型号的电风扇，下表是近两周的销售情况：销售时段销售数量销售收入A 种型号B 种型号第一周3台5台1800元第二周4台10台3100元（进价、售价均保持不变，利润=销售收入-进货成本）（1）求A 、B 两种型号的电风扇的销售单价；（2）若超市准备用不多于5400元的金额再采购这两种型号的电风扇共30台，求A 种型号的电风扇最多能采购多少台？（3）在（2）的条件下，超市销售完这30台电风扇能否实现利润为1400元的目标？若能，请给出相应的采购方案；若不能，请说明理由．25．已知m 是不等式13134≥+x 的最小整数解，长方形OABC 中，顶点A 、B 的坐标分别是(0,)a 、(,)m a ．（Ⅰ）求m 的值；（Ⅱ）如图①，当a =6时，若点E 在AB 上，且13AE AB =，则AE 的长为；AO 的长为；点E 的坐标为；（Ⅲ）如图②，在（Ⅱ）的条件下，点(0,)G b 在线段OA 上，使GEC ∆的面积为15，四边形BCOG 的面积为45，求点G 的坐标．原题：6．已知m 是不等式13134≥+x 的最小整数解，长方形OABC 中，顶点A 、B 的坐标分别是(0,)a 、(,)m a ．（Ⅰ）求m 的值；（Ⅱ）如图①，若点E 在AB 上，且13AE AB =，则AE 的长为；AO 的长为；点E 的坐标为；（用数或字母表示）．（Ⅲ）如图②，在（Ⅱ）的条件下，点(0,)G b 在线段OA 上，使GEC ∆的面积为15，四边形BCOG 的面积为45，求a 的值和点G 的坐标．。
2019-2020学年天津市耀华中学高三英语第二次联考试题及参考答案
2019-2020学年天津市耀华中学高三英语第二次联考试题及参考答案第一部分阅读（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、D四个选项中选出最佳选项A4 Best Drive--In Movie Theaters in the USColorado: Holiday Twin Drive--InAddress: 2206 S Overland Trail, Fort Collins, CO 80526, USAPhone: +1 970-221-1244The theater, open since 1968 and currently the most popular drive-in in the US, provides various special foods. The menu there even amazes meat-free customers. But please remember the outside food is forbidden here. Besides, the Rocky Mountains provide a pastoral (田园式的) backdrop to screenings, and sunsets usually don’t disappoint either. It also offers lots of unique events that go beyond the big screen.North Carolina: Hound’s Drive--InAddress: 114 Raven Cir, Kings Mountain, NC 28086, USAPhone: +1 704-739-4424Having only opened in 2016, it’s one of the newest theaters on the block. The drive-in features newer equipment and digital projection. People can bring their animal friends along.Florida: Fort Lauderdale Swap ShopAddress: 3291 W Sunrise Blvd, Fort Lauderdale, FL 33311, USAPhone: +1 954-791-7927The Florida favorite offers plenty ofways to have fun. With 14 screens, the self-proclaimed (自称的) world’s largest drive-in equals any indoor cinema in terms of capacity and programming. It also includes an 88-acre flea (跳蚤) market and a free Ferrari museum. It’s best to book tickets on the Internet ahead of time if you don’t want to wait in line.California: Mission Tiki Drive -InAddress: 10798 Ramona Ave, Montclair, CA 91763, USAPhone: +1 909-628-0511Let’s have fun in the old-school outdoor cinema in Montclair, California. Remember tickets are available at the ticket office only. It alternates (交替) up to eight new releases on four screens and hosts almost daily swapmeets where people can exchange things they no longer need. It also organizes classic car and lowrider meet-ups.1.What can people do in Holiday Twin Drive-In?A.Participate in somespecial activities.B.Enjoy the film with the latest equipment.C.Learn about the benefits of being meat free.D.Share home-made cookies while watching the film.2.Which of the following theaters is friendly to visitors with pets?A.Hound’s Drive- In.B.Mission Tiki Drive-In.C.Holiday Twin Drive-In.D.Fort Lauderdale Swap Shop.3.What do Fort Lauderdale Swap Shop and Mission Tiki Drive-In have in common?A.Both feature old-fashioned styles.B.Both allow booking tickets online.C.Both provide free museum exhibitions.D.Both offer chances to trade second-hand goods.BOne day when I was 5, my mother criticized me for not finishing my rice and I got angry. I wanted to play outside and not to be made to finish eating my old rice. In my angry motion to open the screen door (纱门) with my foot, I kicked back about a 12-inch part of the lower left hand corner of the new screen door. But I had no regret, for I was happy to be playing in the backyard with my toys.Today, I know if my child had done what I did, I would have criticized my child, and told him about how expensive this new screen door was, and I would have delivered a spanking (打屁股) for it. But my parents never said a word. They left the corner of the screen door pushed out, creating an opening, a crack in the defense against unwanted insects.For years, every time I saw that corner of the screen, it would remind me of my mistake from time to time. For years, I knew that everyone in my family would see that hole and remember who did it. For years, every time I saw a fly buzzing in the kitchen, I would wonder if it came in through the hole that I had created with my angry foot. I would wonder if my family members were thinking the same thing, silently blaming me every time a flying insectentered our home, making life more terrible for us all. My parents taught me a valuable lesson, one that a spanking or stern (严厉的) words perhaps could not deliver. Their silent punishment for what I had done delivered a hundred stern messages to me. Aboveall, it has helped me become a more patient person and not burst out soeasily.4. When the author damaged the door, his parents _______.A. scolded him for what he had doneB. left the door unrepairedC. told him how expensive it wasD. gave him a spanking5. How did the author feel every time he saw the damaged door?A. He felt ashamed of his uncontrolled anger at that time.B. He found that his family members no longer liked him.C. He found it destroyed the happy atmosphere at his home.D. He felt he had to work hard to make up for (弥补) the damage.6. The experience may cause the author _______.A. to hide his anger away from othersB. not to go against his parents’ willC. to have a better control of himselfD. not to make mistakes in the future7. What of the following is the main idea of this passage?A. Adults should ignore their children’s bad behavior.B. Parents shouldn’t educate their children.C. What is the best way to become a more patient person?D. Silent punishment may have a better effect on educating people.CWhen Jennifer Doudna was in sixth grade, she came home one day to find that her dad had lefta book titled The Double Helix on her bed. She put it aside, thinking it was one of those detective tales she loved.On a rainy Saturday, she picked up the book. As she sped through the pages, she became fascinated by the drama, which encouraged her to explore nature's wonders. Even though her high school teacher told her that girls didn't become scientists, she decided she would.She worked with a biologist, Charpentier, to turn a curiosity of nature into an invention—an easy-to-use tool that can edit DNA. Known as Crispr, the tool will transform the human race. James Watson, the author of The Double Helix, later told her it was the most important biological advance: since he and Francis Crick discovered the structure of DNA.For this achievement, Doudna and Charpentier were awarded the Nobel Prize in Chemistry in 2020. Until now,only five women, beginning with Marie Curie in 1911, had won or shared the Nobel for Chemistry out of 184 award winners. When this year's prize was announced, Dr. Charpentier said it would provide a message specifically to young girls who would like to follow the path of science and to show them that women can also be awarded prizes.A few decades from now, if it becomes possible and sate to edit DNA, should we allow parents to improve the IQ and physical strength of their kids? Should we let them decide eye color1 ? Skin color1 ? Height? After helping to discover Crispr, Dr. Doudna has become a leader in considering these moral issues. That's the main message we should take from this Nobel: New technologies can be a huge benefit to the human race, but in order to make sure they are used wisely, it's important for people to understand them.8. Jennifer Doudna decided to become a scientist because,__________A. her father pushed herB. a book inspired herC. her teacher encouraged herD. James Watson motivated her9. Dr. Doudna was awarded the Nobel Prize because,__________.A. she wrote the book “The Double Helix"B. she discovered the structure of DNAC. she is a hardworking woman scientistD. she helped invent a tool for editing DNA10. According to passage, which of the following is NOT true?A. The two women's success will inspire more girls to be devoted to science.B. Since 1911, there have been 184 people who won the Nobel for chemistry.C. If girls follow the path of science, they will surely achieve their goals.D. Crispr will make a big difference to the human race.11. Which words can best describe Jennifer Doudna?A. Determined and responsible.B. Ambitious and humorous.C. Cruel and indifferent.D. Fearless and stubborn.DI started out in life with few advantages. I didn't graduate from high school. I worked at menial (不体面的) jobs. I had limited education, limited skills and a limited future.And then I began asking, "Why are some people more successful than others?" This question changed my life.Over the years, I have read thousands of books and articles on the subjects of success and achievement(成就). It seems that the reasons have been discussed and written about for more than two thousand years, in every possible way. One quality that most philosophers, teachers and experts agree on is the importance ofself-discipline (自律). As Al Tomsik summarized it years ago, "Success is tons of discipline."Some years ago, I attended a conference in Washington. It was the lunch break and I was eating at a nearby food fair. The area was crowded and I sat down at the last open table by myself, even though it was a table for four.A few minutes later, an older gentleman and a younger woman who was his assistant came along carrying trays of food, obviously looking for a place to sit. With plenty of room at my table, I immediately invited the older gentleman to join me. He was hesitant (犹豫), but I insisted. Finally, thanking me as he sat down, we began to chat over lunch.It turned out that his name was Kop Kopmeyer. As it happened, I immediately knew who he was. He was a legend in the field of success and achievement. Kop Kopmeyer had written four large books, each of which contained 250 success principles that he had obtained from more than fifty years of research and study. I had read all four books from cover to cover, more than once.After we had chatted for a while, I asked him the question that many people in this situation would ask, "Of all the one thousand success principles that you have discovered, which do you think is the most important?”He smiled at me, as if he had been asked this question many times, and replied, without hesitating, "The most important success principle of all was stated by Thomas Huxley many years ago. He said, 'Do what you should do, when you should do it, whether you feel like it or not.'"He went on to say, "There are 999 other success principles that I have found in my reading and experience, but without self-discipline, none of them work."12. Why did the writer ask the question in Paragraph 2 ?A. Because he wasn't satisfied with himself.B. Because he was a person of self-discipline.C. Because he dislike those successful people.D. Because he wanted to share his idea on success.13. What made the writer invite the older gentleman to join him ?A. His great kindness.B. The gentleman's fame.C. His eagerness for success.D. The gentleman's habit.14. What are the four large books about ?A. Personal changesB. The secret of successC. Sayings of wisdomD. The gentleman's manners.15. What's the best title for the text ?A. The Magic of ReadingB. An Unexpected ConversationC. A Question that Changed MyLifeD. The Power of Self-discipline第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
天津市耀华中学2019-2020学年高二第二学期外研版选修七Module1-2检测（含答案）
天津市耀华中学2019-2020学年高二第二学期外研版选修七Module1-2检测（含答案）高二年级B7M1M2测验试卷2I. 单项填空（共30小题；每小题1分，满分30 分）1. ________ i s no doubt that he will pass the exam.A. find 13. --- How about eighto A. needs'clock outtelcinema? B. meets 14. It 'a pity that so many ________ historical records were destroyed.A. meanin glessB. powerlessC. valuelessD. priceless15. It worried her a lot ______ she could not afford ______ she liked.16. Danby left word with my secretary _____ he would call aga in in the after noon.A. whoB. thatC. as 17. Could I speak to ______ is in charge of International Sales, please?A. anyoneB. some oneC. whoever 18. ---Could you please tell me more about the city?---Sorry, I ' m a newcomer. I k no twing else ________ you know now.A. except forB. but thatC. except whatD. but for 19. The problem _______ h im.A. upsettedB. upsetC. was upsetD. upsets to 20. With only five minutes ________ before the teacher collected our exam papers, I felt uneasy as I had not yetA. ThereB. ItC. ThisD. That2. I wish he ______ present at the meeting, but he has jus ______ to Beijing. A. could; bee n B. were; gone C. was; bee n3. Usually children are allowed to ______ when they are six years old.A. jo in schoolB. atte nd the schoolC. atte nd school 4. --- ________ I went to see the doctor, I had to wait about 50 minutes. ---So you must make an appo in tme nt in adva nee. A. Every time B. Since C. While 5. To our great _______ , his parents were ________ at his mark.D. would; goneD. jo in the school D. Even if A. surprises; surprised B. surprises; surpris ing C. surprise; surprised 6. I have no dreams ____ t o have a happy life. A. rather tha n B. more tha n C. other tha nD. surprise; surpris ing D. less tha n 7. He had a lot of friends, none of _____ c ould lend him any money. A. whom B. them C. which D. who8. Why do you stand and watch the milk _______ ? A. boili ngB. boiledC. from boil ingD. havi ng bee n 9. You can find whatever you need at the shopping center, ________ is always busy at the weekend.A. thatB. whereC. whatD. which 10. You should un dersta nd the traffic rule by now. You ' vead it _______ ofte n eno ugh.A. explai ningB. to expla inC. expla in 11. Sometimes we are asked _______ the likely result of an action will be. A. that we thi nk B. what we thi nk C. what do we thinkD. expla ined D. that what we thi nk 12. ---How did you _______the movie last night? ---Oh , both in teresti ng and in structive. B. con siderC. thi nkD. feel ---That _______ m e fine.C. satisfiesD. suits A. whe n; which B. that; whatever C. whether; what D. as; everyth ingD. which D. no matter whochecked the an swers.A. to goB. goingC. goneD. to be gone 21. He said, “ They are repe at and ____________ every respect from us all. ”A. deserveB. receiveC. preserveD. perceive 22. We don ' doubt ______ the people in Beichuan County will recover from the disaster soon and rebuild their homes better tha n before.23. I think he is ______ to win, but rm not sure.A. possibleB. likelyC. impossibleD. certa in 24. For breakfast he only drinks juice from fresh fruit _______ on his own farm. A. grow nB. being grow nC. to be grow nD. to grow 25. To every on e's joy, the famous film star was _______ mayor of the city. A . adopted B . appo in ted C . n amed after D . in the n ame of26. His remarks _______ me in my opinion that he was a very con siderate boy. A . concerned B . con tacted C . con firmed D . con sidered27. Teaching is not just a simple piece of work; it's an art _________ a scienee. A . is based onB . based withC . based on 28 . One of the rooms was ________ for a yoga class. A . left beh indB . set asideC . put back 29 . Do you want that cake ? _______ , I'll have it.A . If soB . If possibleC . If n ecessary30 . She _______ herself successfully in court and the judge declared her innocent. A . expressed B . described C . replaced II.完形填空（共20小题；每小题1.5分，满分30分）In our discussion with people on how education can help them succeed in life, a woman remembered the first meeti ng of an in troductory Lcourse about 20 years ago.The professor 2 the lecture hall, placed upon his desk a large jar filled with dried beans （豆）,and invited the students to 3 how many beans the jar contained. After 4 shouts of wildly wrong guesses the professor smiled a thin, dry smile, announced the 5 answer, and went on saying, “ You have just 6 an important less on about scie nee. That is: NeverT. your own sen ses ” Twenty years later, the 8 could guess what the professor had in mind. He 9 himself, perhaps, as in vit ing his students to start an exciting _AQ into all unknown world invisible （无形的）to the 11 , which can be discovered only through scientific 12 . But the seventeen-year-old girl could not accept or even 13 the in vitati on. She was just 14 to un dersta nd the world. And she 15 that her firstha nd experie nee couldbe the 16 .The professor, however, said that it was 17 . He was taking away her only _____ 18 for knowing and was providing her with no substitute （替代）. re l ember feeling small and_19 , "thewoman says, andI did the only thing I could do. I 20_ the course that after noon, and I have n' t gorsenn e ar Science 1. A. artB. historyC. scie neeD. math 2. A. searched forB. looked atC. got throughD. marched into 3. A. cou ntB.guessC. reportD. watch 4. A. warni ngB. givi ngC. tur ning awayD. liste ning to 5. A. readyB. possibleC. correctD. difficult 6. A. learnedB. preparedC. taughtD. take n 7. A. loseB. trustC.sharpenD.show 8. A. 1ecturer B. scie ntist C. speakerD. woma nA. thatB. ifC. whatD. whether D . depended on D . moved aside D . If not D . defe nded9. A. described B. respected C. saw D. served10. A. voyage B. moveme nt C. change D. rush11. A. professor B. eye C. kno wledge D. light12. A. model B. senses C. spirit D. methods13. A. hear B. make C. prese nt D. refuse14. A. suggest ing B. begi nning C. prete nding D. waiti ng15. A. believed B. doubted C. proved D. expla ined16 . A. growth B. stre ngth C. faith D. truth17. A. firm B. in terest ing C. wrong D. acceptable18. A. task B. tool C. success D. conn ection19. A. cruel B. proud C. frighte ned D. brave20. A. dropped B. started C. passed D. missedIII.阅读理解（共20小题；每小题2分，满分30分）ADo you forget to turn off the lights and heaters whe n you go out of a room? In 2040 it will n ot matter. They will turn themselves off and on again when you return. Y ou will choose the temperature for each room, the lighting and the humidity( 湿度).A sensor will detect the presenee of a human (and, with luck, ignore the dog!) and turn the systems on, and whe n the huma ns leave it will tur n them off aga in.The sensors will work through the central home computer, and they will do much more than just turn the fires and lights on and off for you. They will detect faulty electrical applia nces, plugs or switches, isolate them so that they cannot harm anyone, and the n warn you that they n eed repair. They will detect fire and if you are out of the house, the computer will call the fire brigade. It will also call the police if the sensors detect an intruder. This will not be too difficult because the locks on the outside doors will be electr on ic. You will ope n them using your pers onal card —the one you use for shopp ing —may be using a nu mber known only to you.It will be impossible to lose the key, and a house-breaker will have to tamper with the lock or with a win dow.It is not very difficult to make such tampering send a signal to the computer.The computer will be an entertainer, and most of your entertainment will come right into your home. It does now, of course, but by 2040 “ en terta inment ” will mean much more. For one thi ng, you will be able to take part actively, rather tha n just watchi ng.I. __________________________________________ The author intends to tell us that in 2040A. we will live without lights and heatersB.we will use more lights and heatersC. there will be no switches of lights and heatersD. lights and heaters will be on and off automatically2. Which of the following statements is NOT true?A .The sen sor is multi-fu nction al.B. Without a computer, the sensor cannot do much.C. The sensor will detect fire and make an emergency call.D. You can be taken for an intruder if you tamper with the lock or with a window.3. Accord ing to the author, i n 2040, new tech no logy willA.free us from the keys we use todayC. make the locks out of date4. Tha nks to computers, in 2040 people willA. have no en terta inment outsideC. be con trolled by computers B. turn everyth ing into sen sorsD. get rid of all crimesB. replace TV with computersD. have more fun at homeB. Life at Home in the Y ear 2040D. Lights and Heaters in the Year 20405. ______________________________________ The best title for thepassage might beA. Sen sors and ComputersC. The developme nt of scie nee and Tech no logyThe Great Fire of London started in the very early hours of September 2, 1666. In four days it destroyed morethan three-quarters of the old city, where most of the houses were woode n and close together. One hun dred thousa nd people became homeless, but only a few lost their lives.The first started on Sun day morning in the houses of the King ' baker in Puddi ng Lane. The baker, with his wife and family, was able to get out through a window in the roof.A strong wind blew the fire from the bakery into a small hotel n ext door. Then it spread quickly into Thames Street. That was the begi nning.By eight o ' clock three hun dred houses were on fire. On Mon day n early a kilometer of the city was bur ningalong the River Thames. Tuesday was the worst day. The fire destroyed many well- known build in gs, old St. Paul ' s and the Guildhall among them.Samuel Pepys, the famous writer, wrote about the fire. People threw their things into the river. Many poorpeople stayed in their houses un til the last mome nt. Birds fell out of the air because of the heat.The fire stopped only whe n the King fin ally ordered people to destroy hun dreds of build in gs in the path of the fire. With no thi ng left to burn, the fire became weak and fin ally died out.After the fire, Christopher Wten, the architect, wan ted a city with wider streets and fine new houses of stone.In fact, the streets are still n arrow, but he did build more than fifty churches, among them is the new St. Paul The fire caused great pain and loss, but after it London was a better place: a city for the future and not just of thepast.6. The fire began in ____ .A. a hotelB. the palaceC. Puddi ng LaneD. Thames Street7. The underlined word “ family ” in thpasagcaph mean ____ .A. homeB. childre nC. wife and husba ndD. wife and childre n8. It seems that the writer of the text was most sorry for the fact that _____ .A. some people lost their livesB. the birds in the sky were killed by the fireC. many famous buildings were destroyedD. the King ' s bakery was budowln9. Why did the writer cite（弓I用）Samuel Pepys?A. Because Pepys was among those putt ing out the fire.B. Because Pepys also wrote about the fire.C. To show that poor people suffered most.D. To give the reader a clearer picture of the fire.10. How was the fire put out according to the text?A. The King and his soldiers came to help.B. All the wooden houses in the city were destroyed.C. People man aged to get eno ugh water from the river.D. Houses sta nding in the direct ion of the fire were pulled dow n.Have you ever found yourself in this situati on: You hear a song you used to sing whe n you were a child —a bit of nostalgia （怀旧）or “ blast from the past, ” as we say. But it is not a distant childhood memory. The words come back to you as clearly as whe n you sang them all those years ago.Researchers at the Uni versity of Edin burgh studied the relati on ship betwee n music and rememberi ng a foreig n Ian guage. They found that rememberi ng words in a song was the best way to remember eve n one of the most difficult Ian guages.Here is what they did. Researchers took 60 adults and randomly divided them into three groups of 20. Then they gave the groups three differe nt types of -an d-repeatis” nlearning con diti ons. Researchers had one group sirtypspeak the words. They had the sec ond group speak the words to a rhythm, or beat. And they asked the third group to sing the words.All three groups studied words from the Hungarian Ianguage for 15 minutes. Then they took part in a series of Ian guage tests to see what they remembered.Why Hun garia n, you ask? Researchers said they chose Hun garia n because not many people know the Ian guage. It does not share any roots with Germanic or Romance Ianguages, such as Italian or Spanish. After the tests were over, the sin gers came out on top. The people who learned these new Hun garia n words by singing them showed a higher overall performa nce. They did the best in four out of five of the tests. They also performed two times better than those who simply lear ned the words by speak ing them.Dr. Katie Overy says singing could lead to new ways to learn a foreign Ianguage. The brain likes to rememberthings whe n they are contained in a catchy or memorable tune.Dr. Ludke said the findings could help those who struggle to learn foreign Ianguages. On the University of Edin burgh ' s website Ludke writes, “ This study provides the first experime ntal evide nce thaste n-an d-repeat singing method can support foreig n Ian guage lear ning, and ope ns the door for future research in this area. ”11. The “ song ” mentioned in the first paragraphnitended to ________ .A. recall the pastB. amuse the readersC. in troduce the topicD. compare the past with the prese nt12. According to the passage which Ianguage doesn ' t share the sGmuerarafevoiitlRomance Ianguages?A. Hun garia nB. SpanishC. Italia nD. En glish13. From the last two paragraphs, we can conclude that _______ .A. singing is the best way to learn a foreign IanguageB. brain probably works best when foreign Ianguage learners sing the wordsC. a listen-repeat method is very effective for any Ianguage learnerD. Dr. Katie Overy and Dr. Ludke disagree with each other14. What' s correct about the study undertaken by the researchers at the University oEdinburgh?A. Altogether twenty adults were tested in the study.B. People in the 3rd group performed as well as the other 2 groups.C. People in the 2nd group were asked to speak the words to a beat.D. In the study 60 adults were divided into 3 groups according to abilities.15. In which situation can the finding of the research be applied?A. A mother is going to teach her baby how to speak.B. A child is going to have his first music less on.C. A student is going to learn a new English song.D. An American is going to learn some Chinese.V.阅读表达（每小题2分；满分10分）I stood at the edge of the cliff. The wind stung my eyes, cutt ing into my skin. Dark-feathered birds circled the air, swooping （俯冲）low over the ocean every now and then to catch their dinner. Hundreds of feet below, the deep ocean beat against the rough sandy shore. I took a deep breath, filling my lungs with excitement ——and at the same time, fear.Behind me, I heard the rest of the crew start to mutter. I was here for the shooting of a movieas I was one of the lead actors in the film Dangerous Things , and this scene was right in the middle of the climax (故事的高潮).苴was vital that this went right.The director had talked to me about getting a stunt double ( 替身演员),but I ' d persuadedhim that I could handle the dive. I ' d taken a diving course afew years ago, and I ' d beswim ming less ons since I was five years old. I had bee n pretty con fide nt that I could do this —— up till now.Some one called out, “ Ceria, you don ' t have to do this! Are you sure you want to dive?was one of the producers, C allie Evans. I knew I couldn ' t turn back now. I couldn ' t bear to see the disappo in ted look on the director ' s face whe n he was told that I could n ' t do it.At that moment, all my fears and worries broke free. The expectation of adventure andvictory seemed to move all the hesitation. I swooped downwards. The air on either side of me cutinto my extended arms. I knew that this wonderful feeling of flight would only last a fewsec on ds, yet time seemed to slow dow n so I could hear the thrilled whoops of my crew and around of applause that seemed to echo in my pounding ears.1. At the begi nning, how did the author feel about what she was going to do? (No more tha n 3words)2. What does the underlined sentence in Paragraph 2 mean in English? (No more than 15 words)3. Why was the author that con fide nt in divi ng? (No more tha n 10 words)4. What was the crew ' s reaction while the authordiving down? (No more than 10 words)5. How do you like the author? Please explain why. (No more than 25 words)答案：单选：1-5ABCAC 6-10CAADD 11-15BADDB 16-20BCCBA 21.AABAB 26. CCBDD完型：36-40: CDBDC 41-45: ABDCA 46-50: BDABA 51-55 DCBCA阅读理解：DCADB CBCDD CABCD阅读表达1. She felt excited and frightened / fearful.2. It was important that the scene was properly shot.Or: (Because it was the climax of the movie), the dive must perform successfully / well.3. Because she had taken diving and swimming courses.4. The crew cheered loudly for her.5. I think the author was brave and con fide nt, because she could overcome the fear to challe ngeherself and enjoy success.Or: I think she was brave because she didn ' t chicken out when facing challenges.。
【精准解析】天津市耀华中学2019-2020学年高一下学期期末考试化学试题
【解析】
【详解】A. 原方程式电荷不守恒，三氯化铁溶液中加入铁粉 2Fe3++Fe=3Fe2+，故 A 错误； B. 还原性：I->Fe2＋,少量氯气通入碘化亚铁溶液中 2I-+Cl2=I2+2Cl-，故 B 错误； C. 还原性：Fe2＋>Br-，少量氯气通入溴化亚铁溶液中 2Fe2++Cl2=2Fe3++2Cl-，故 C 错误； D. 过量氯气通入溴化亚铁溶液中，将亚铁离子和溴均氧化，2Fe2++4Br-+3Cl2=2Fe3++2Br2+6Cl-， 故 D 正确；
A.
含有大量
Ba2+的溶液中：Cl-、K+、SO
2 4
、CO
2 3
B.
能使紫色石蕊试液变红的溶液中：Mg2+、Na+、SO
2 4
、Cl-
C.
含有大量
OH-的溶液中：Na+、NO3-、SO
2 4
、CO
2 3
、HCO
3
D.
含有大量
Na+的溶液中：H+、K+、SO
2 4
、NO
3
、Fe2+
【答案】B
【解析】
合题意。）
1. 采用不同的分类方法，可将非金属氧化物分为不同的类别。例如从某种意义上可将 P2O5、
SO2、SO3、CO2、Cl2O7 等归为一类，则下列氧化物与它们属于同一类的是（ ）
A. CO
B. NO
C. Na2O
D. N2O5
【答案】D
【解析】
【详解】P2O5、SO2、SO3、CO2、Cl2O7 均属于非金属氧化物，且属于酸性氧化物，CO、NO
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天津耀华滨海学校2019-2020学年度第二学期统练7
高三年级地理试卷
一、选择题（每题3分，15道，共45分）
近年来，作为全国交通枢纽的我国南方中部某市城市建设不断发展，土地利用变化比较明显。
下表为2009-2015年该市土地利用（单位：km2）转换矩阵示意表（表中土地利用方式由所在行转变成所在列，对角线上的数据表示没有变化的面积）。
1．由表可知，2009~2015年该市废弃的建设用地主要用于
A．耕地B．林地C．水体D．未利用土地2．伴随土地利用方式的转变，该市可能出现的变化是
A．林地面积扩大，城市环境得到改善B．水体面积扩大，城市热岛效应减弱C．产业结构升级，农业人口比重下降D．城市扩张，未利用土地开发殆尽3．该市未来发展，可充分利用
A．耕地资源优势，发展商品粮基地B．交通枢纽优势，形成区域物流中心
C．热量资源优势，种植热带经济作物D．林业资源优势，形成全国木材供应基地沙丁鱼喜凉水，水温14 -20℃是它们最喜欢的温度范围，好群居，以大量的浮游生物为食。
厄加勒斯附近浅滩是南半球沙丁鱼的主要聚集地，每年当一股低温的沿岸流在厄加勒斯浅滩出现并向北流动时，沙丁鱼便开始了一年一度的大迁徒，形成壮观的“鱼带”。
下图示意非洲南部沿海等温线及洋流分布。
4．推测沙丁鱼大迁徙的可能路线是
A．路线1B．路线2C．路线3D．路线4
5．沙丁鱼从厄加勒斯浅滩大迁徙的时段大约是
A．5、6、7月B．8、9、10月C．11、12、1月D．2、3、4月6．在沙丁鱼大迁徙的时段里，一艘轮船日出时从厄加勒斯角出发前往开普敦。
期间船员看到的现象可信的是
A．出发时船桅杆的影子朝向西北B．轮船航行中顺风顺水
C．岸上树林枯黄叶落D．轮船航行中常有阴雨天气
长期以来，加拿大在吸引汽车投资方面一直落后于美国。
而在2017年11月，中国汽车企业比亚迪公司宣布，计划在加拿大汽车工业基地安大略省（位置如下图所示）新建电动客车厂，技术和零配件均来自中国国内。
7．新厂在加拿大首选落户安大略省，是因为该省
A．气候干旱，太阳能丰富B．地广人稀，土地价格低廉
C．科研院校多，技术先进D．工业基础好，配套能力强
8．相比以燃油为主的传统客车，纯电动客车在安大略省的广泛应用有利于A．延长出行距离B．减少汽车尾气C．缓解交通堵塞D．推动物流发展9．为加拿大设计的电动卡车最应突出
A．爬坡能力B．涉水能力C．防震能力D．抗寒能力
柬埔寨的洞里萨湖是一个水量季节变化很大的大湖。
洞里萨湖北部的吴哥通王城两边有两个巨大的长方形人工湖—西池和东池。
这两个大水池并不是在地面挖坑形成的，而是在地面上四面筑起土墙形成高于地面的水库，是著名的古老的灌溉工程。
10．这两个地上水库最主要的补给水源是
A．雨水B．地下水C．湖泊水D．人工提水
11．这两个地上水库能有效发挥灌溉作用的时间是
A．2～6月B．5～9月C．8～12月D．11～次年4月12．当洞里萨湖沿岸水稻种植面积最广时，下列作物的种植面积在我国也达到最广的A．甘蔗B．油菜C．棉花D．花生
黄河是世界含沙量最大的河流之一。
黄河下游由于大量泥沙淤积，河道逐年抬升，河床高出地面，是世界上著名的“地上悬河”。
下图是黄河下游1万年以来的泥沙年平均沉积速率统计示意图。
13．影响黄河下游泥沙年平均沉积速率变化的最主要因素是
A．年降水量B．地形地势C．年平均气温D．植被覆盖率14．距今5000年左右，黄河下游泥沙年平均沉积速率发生了突变，显示A．气候从暖湿向冷干转变B．大规模农田的开垦
C．地壳上升河流侵蚀加强D．草原南界向北移动
日晷是古代先民利用日影测得时刻的一种计时仪器。
日晷依晷面所放位置、摆放角度、使用地区的不同，日晷可分成地平式、赤道式、子午式、卯酉式、立晷等多种，但其设计原理都是相同（即指针指向北极星或相反方向）。
下图示意我国某地日晷计时示意图。
15．若该日晷位于北京（40︒N），则晷面与地平面的夹角应接近
A．30度B．40度C．50度D．60度
二、综合题（共55分）
16．阅读图文材料，完成下列问题。
（12分）
材料一察尔汗盐湖总面积5856平方千米，是中国最大的盐湖。
青藏公路横跨湖上，将盐湖从中间臂成两半，被誉为“万丈盐桥”。
万丈盐桥实际上是一条在盐盖上铺就的道路，它既无桥墩，又无栏杆，整个路面平整光滑，坦荡如砥。
在盐路的两侧，相距几百米就有一个盐坑，遇到盐路出现坑坑洼洼的时候，道班工人就从湖面挖起一块块盐盖铺垫在路上，然后浇上从盐坑中取出的卤水，再经过过往汽车碾压，不平的路面很快又平整如镜了。
（1）简析察尔汗盐湖形成的地形和气候条件。
（6分）
（2）试分析“万丈盐桥”能够穿湖而建的原因。
（6分）
17．阅读图文资料，完成下列要求。
（18分）
每年春季，太平洋海域 5 亿多条大马哈鱼开始洄游到北美西海岸（从加利福尼亚一直到阿拉斯加）的江河溪流产卵繁殖，沿海地区沿存世界最大的温带雨林。
大马哈鱼在北美西海岸最远可以沿河上溯 3200 千米，它们要迎向瀑布，跳过陡坎，逆流而上，越过浅滩，到达产卵地。
洄游途中许多大马哈鱼成为了北美棕熊越冬的主要食物来源。
大马哈鱼的洄游是把森林和海洋联系起来的唯一外链条，它们生于淡水，长于海洋，在海洋，它们获得了成长所需的各种养分，又重返“故乡”。
下图为大马哈鱼淡水流域分布区位置示意图。
（1）与同纬度欧洲西部相比，分析北美西海岸温带雨林分布较广的自然原因。
（6分）（2）指出弗雷泽河径流量的季节变化特点。
（6分）
（3）棕熊冬眠之前必须储存足够越冬的能量，其主要来源于大马哈鱼。
试推测棕熊在河流何处可以大量捕捉到大马哈鱼，并分析其原因。
（6分）
18．阅读图文材料，完成下列要求。
（16分）
长江三角洲是中国城镇化基础最好的地区之一，在中国国家现代化建设大局和开放格局中具有举足轻重的战略地位。
下图示意近30年来长江三角洲地区的城市发展。
(1)概括2015年长江三角洲城市的空间分布特征。
（4分）
(2)简要归纳近30年来长江三角洲城市发展的表现。
（6分）
(3)简述长江三角洲城市化进程对该区域经济发展的积极作用。
（6分）
19．阅读图文材料，完成下列要求。
（9分）
四川省泸州市合江县荔枝主产地位于长江、赤水、习水沿岸河谷地带，合江荔枝
在全球分布纬度最高、成熟期最晚，品质最优，市场价格最高。
荔枝是典型的亚热带常绿果树，喜高温高湿，喜光向阳，对气候条件尤其是气温
非常敏感，生存的温度要求是年平均温度18℃以上，最适宜的温度是22~25℃，尤其
是冬季不耐冰雪霜冻；最低温度低于2℃就可能遭受冻害，会使来年荔枝产量大为减少
甚至绝收。
从最近50年的气象观测资料来看，合江县年平均气温为18.1℃，极端高温
为43.4℃，极端最低气温-2.2℃，平均有霜期仅6天，大约每三年有一年是完全无霜的。
下面两幅图分别示意我国荔枝主要分布区和合江位置。
根据材料，回答以下问题。
（1）当地农民常用绿肥、田间杂草、作物茎秆等覆盖于荔枝树下，分析这种做法的原因。
（6分）
（2）分析合江荔枝市场价格最高的原因。
（3分）
天津耀华滨海学校2019-2020学年度第二学期统练7答案
一、选择题
ACBCA DDBDC DBDAC
二、综合题
16．（1）位于柴达木盆地地势低洼处，四周高大山脉环抱，周围河流携带矿物质流入湖盆；湖区位于青藏高原，水汽难以进入，降水少；海拔高，空气稀薄，光照足，太阳辐射强；高原上多大风，蒸发旺盛，形成盐湖。
（任答3点可得6分）
（2）湖底盐盖坚硬且不易下沉；湖水含盐高，对路基稀释作用小；湖区降水少，蒸发量远远大于降水量，路面不易被雨水溶解；湖中盐盖和路边盐坑，方便道路维护。
（任答3点可得6分）
17．（1）这里有高大的西北一东南走向的山脉（说明西风带也可以）；山脉对盛行西风抬升作用强，降水多；冬季高大山脉阻挡了陆地冷气流侵入，气温较高。
（3点6分）（2）季节变化大；有春汛；夏季径流量最大；冬季径流量小(为枯水期)。
（任答3点可得6分）（3）河流的浅水区、陡坎处。
浅水区大马哈鱼游动速度慢，水浅有利于棕熊站在水中捕捉；陡坎处，大马哈鱼洄游受阻，数量多。
（6分）
18．(1)分布不均；北多南少（东多西少）；主要沿江、沿湖、沿海分布。
（任答2点得4分）(2)城市数目增多；城市人口增加；城市等级提升；城市规模扩大（形成城市群）。
（任答3点得6分） (3)促进农村人口向城市转移，增加城市劳动人口；推动区域工业化和服务业的发展，改善产业结构；加强城镇基础设施和公共服务设施建设，促进经济发展。
（6分）
19.（1）夏季可减少光照直射地面，降低土温，冬季可减少地面热量损失，起到保暖
作用；既能增加降水下渗，又能减少土壤水分蒸发，利于防旱保湿；可减少杂草生长，增加土壤有机质，增强土壤肥力。
（3点6分）
（2）分布纬度最高，气温低，生长周期长，品质最好；成熟期最晚，与其它产地大规模上市时间错开。
（任答一点得2分，答全得3分）。