2018年上海普陀区初三二模试卷(答案)

2018年普陀区初三英语二模答案1、You have coughed for several days, Bill. Stop smoking, _______ you’ll get better soon. [单选题] *A. butB. afterC. orD. and(正确答案)2、When you’ve finished with that book, don’t forget to put it back one the shelf, ____? [单选题] *A. do youB. don’t youC. will you(正确答案)D. won’t you3、The manager demanded that all employees _____ on time. [单选题] *A. be(正确答案)B. areC. to beD. would be4、For more information, please _______ us as soon as possible. [单选题] *A. confidentB. confidenceC. contact(正确答案)D. concert5、Alice is a ______ girl. She always smiles and says hello to others.（）[单选题] *A. shyB. strictC. healthyD. friendly(正确答案)6、If you know the answer, _______ your hand, please. [单选题] *A. put up(正确答案)B. put downC. put onD. put in7、David ______ at home when I called at seven o’clock yesterday evening. （）[单选题] *A. didn’tB. doesn’tC. wasn’t(正确答案)D. isn’t8、Mr. Wang is coming to our school. I can’t wait to see _______. [单选题] *A. herB. him(正确答案)C. itD. them9、75．Why not________ for a walk? [单选题] *A．go out(正确答案)B．to go outC．going outD．goes out10、Last year Polly _______ an English club and has improved her English a lot. [单选题] *A. leftB. sawC. joined(正确答案)D. heard11、I often _______ music from the Internet. [单选题] *A. download(正确答案)B. spendC. saveD. read12、My father and I often go ______ on weekends so I can ______ very well. （）[单选题] *A. swim; swimmingB. swims; swimC. swimming; swimmingD. swimming; swim(正确答案)13、This girl is my best friend, Wang Hui. ______ English name is Jane.（）[单选题] *A. HeB. HisC. SheD. Her(正确答案)14、She is a girl, _______ name is Lily. [单选题] *A. whose(正确答案)B. whoC. whichD. that15、Catherine has two cousins. One is quiet, and _______ is noisy. [单选题] *A. anotherB. the other(正确答案)C. othersD. other16、In winter, animals have a hard time_____anything to eat. [单选题] *A.to findB.finding(正确答案)C.foundD.to finding17、The museum is _______ in the northeast of Changsha. [单选题] *A. sitB. located(正确答案)C. liesD. stand18、I like this house with a beautiful garden in front, but I don't have enough money to buy _____. [单选题] *A. it(正确答案)B. oneC. thisD. that19、I don’t think he will take the case seriously,_____? [单选题] *A.don’t IB.won’t heC.does heD.will he(正确答案)20、1——May I help you? You seem to be having some problems.——_______ , thanks. Ithink I can manage. [单选题] *A. All rightB. No problemC. It’s all right(正确答案)D. There’s no way21、No writer will be considered（）of the name until he writes a work. [单选题] *A. worthlessB. worthy(正确答案)C. worthwhileD. worth22、He held his（）when the results were read out. [单选题] *A. breath(正确答案)B. voiceC. soundD. thought23、37．—What will you be ___________?—I'm not sure. Maybe I'll be a doctor like my father. [单选题] *A．right nowB．in the future(正确答案)C．at onceD．at the moment24、—The weather in Shanghai is cool now, ______ it? —No, not exactly. （）[单选题] *A. doesn’tB. isC. isn’t(正确答案)D. does25、I’m so tired after _______ walk. [单选题] *A. three hour’sB. three hours’(正确答案)C. three hoursD. three hour26、63．There will be? ? ? ? ??? water on the road after the heavy rain. [单选题] *A．too much(正确答案)B．much tooC．too manyD．many too27、Just use this room for the time being ,and we’ll offer you a larger one _______it becomes available [单选题] *A. as soon as(正确答案)B unless .C as far asD until28、If you had told me earlier, I _____ to meet you at the hotel. [单选题] *A. had comeB. will have comeC. would comeD. would have come(正确答案)29、It' s a pity that we have to stay at home when we are having（）weather. [单选题] *A. so fineB. so fine aC. such fine(正确答案)D. such a fine30、( ) What _____ fine weather we have these days! [单选题] *A. aB. theC. /(正确答案)D. an。

2018学年度第二学期普陀区初三质量调研数学试卷（时间：100分钟，满分：150分）考生注意：所有答案务必按照规定在答题纸上完成，写在试卷上不给分一、单项选择题：（本大题共6题，每题4分，满分24分）[下列各题的四个选项中，有且只有一个选项是正确的，选择正确项的代号并填涂在答题纸的相应位置上]1．下列各数中，能化为有限小数的分数是（▲）.(A) 13； (B) 315； (C) 1228； (D) 19.2. 在平面直角坐标系中，将正比例函数y kx=（k>0）的图像向上平移一个单位，那么平移后的图像不经过（▲）.(A) 第一象限； (B) 第二象限； (C) 第三象限； (D) 第四象限. 3．已知两圆的圆心距是3，它们的半径分别是方程27100x x-+=的两个根，那么这两个圆的位置关系是（▲）.(A) 内切； (B) 外切； (C) 相交； (D) 外离. 4．一个不透明的盒子中装有2个白球，5个红球和8个黄球，这些球除颜色不同外，没有任何区别，现从这个盒子中随机模出一个球，模到红球的概率是（ ▲ ）. (A) 13； (B)215； (C) 815； (D) 15.5．下列命题中，错误的是（ ▲ ）.（A ）三角形重心是三条中线交点； （B ）三角形外心到各顶点距离相等；（C ）三角形内心到各边距离相等； （D ）等腰三角形重心、内心、外心重合．6. 如图，Rt △ABC 中，∠C =90°，D 为BC上一点， ∠DAC=30°，BD=2，AB =AC 的长是（ ▲ ）.(A) 3； (B)二、填空题：（本大题共12题，每题4分，满分48分） [请将结果直接填入答题纸的相应位置] 7的平方根是 ▲ . 8．分解因式：328a a -= ▲ . 9．函数y =的定义域是 ▲ . 10．一次函数的图像过点（0，3）且与直线y x =-平行，那么函数解析式是 ▲ .11．已知△ABC ∽△DEF ，且相似比为3∶4，22ABC S cm ∆=，则DEF S ∆= ▲2cm .12. 解方程221413x x x x --=-，设21x y x =-，那么原方程化为关于y 的整式方程A CD是 ▲ . 13．在平行四边形ABCD中，对角线AC ，BD 交于点O ，设向量AB a = ，AD b =.用含a 、b 的式子表示向量AO =▲ .14. 1纳米等于0.000000001米，用科学记数法表示：2018纳米= ▲米.15．一山坡的坡度为i =1那么该山坡的坡角为 ▲ 度. 16. 直角坐标系中，第四象限内一点P 到x 轴的距离为2，到y 轴的距离为5，那么点P 的坐标是 ▲ .17．在△ABC 中，AB=AC=5，tan B =43. 若⊙O ，且⊙O 经过点B 、C ，那么线段OA 的长等于 ▲ .18．Rt △ABC 中，∠C=90°，AC =5，BC=12，如果以点C 为圆心，r 为半径，且⊙C 与斜边AB 仅有一个公共点，那么半径r 的取值范围是 ▲ .三、解答题（本大题共7题，其中第19---22题每题10分，第23、24题每题12分，第25题14分，满分78分）19．计算：1102(1)27π-+-+.20． 先化简分式：23()111x x xx x x -÷-+-，再从不等式组3(2)2,4251x x x x --≥⎧⎨-<+⎩的解集中取一个合适的整数代入，求原分式的值.21. 某校为某地震灾区开展了“献出我们的爱”赈灾捐款活动，九年级（1）班50名同学积极参加了这次活动，下表是小华对全班捐款情况的统计表：因不慎两处被墨水污染，已无法看清，但已知全班平均每人捐款38元. (1) 根据以上信息请帮助小华计算出被污染处的数据，并写出解答过程；（6分）(2) 该班捐款金额众数、中位数分别是多少？（4分）22．如图，已知AD 既是△ABC 的中线，又是角平分线， 请判断（1）△ABC 的形状；（5分）（2）AD 是否过△ABC 外接圆的圆心O ，⊙O 是否是 △ABC 的外接圆，并证明你的结论. （5分）第22题D ABC O23. 抛物线2y ax bx =+经过点A （4，0）、B （2，2），联结OB 、AB . (1) 求此抛物线的解析式；（5分）(2) 求证：△ABO 是等腰直角三角形；（4分）(3)将△ABO 绕点O 按顺时针方向旋转135°得到△O 11A B ，写出边11A B 中点P 的坐标，并判断点P 是否在此抛物线上，说明理由. （3分）24．如图，港口B位于港口D正西方向120小岛C位于港口D北偏西60科学考察船从港口D出发，沿北偏西方向以每小时20海里的速度驶离港口一艘快艇从港口B出发沿北偏东30°的方向以每小时60海里的速度驶向小岛C. 在小岛C处用1小时装补给物质后，立即按原来的速度给考察船送去.（1）快艇从港口B到小岛C需要多少时间？（3分）（2）快艇从小岛C出发后最少需要多少时间才能和考察船相遇？（9分）25．如图，已知在等腰△ABC 中，AB=AC=5，BC=6，点D为BC 边上一动点（不与点B 重合），过点D 作射线DE 交AB 于点E ，∠BDE=∠A ，以点D 为圆心，DC 的长为半径作⊙D .（1） 设BD=x ，AE=y ，求y 关于x 的函数关系式，并写出 定义域；（3分）（2） 当⊙D 与边AB 相切时，求BD 的长；（2分）（3） 如果⊙E 是以E 为圆心，AE 的长为半径的圆，那么当BD为多少长时，⊙D 与⊙E 相切？（9分）2018学年度第二学期普陀区九年级质量调研数学试卷B第25题E ACD参考答案及评分说明一、单项选择题：（本大题共6题，每题4分，满分24分）1．(B) ； 2．(D) ； 3．(A) ； 4．(A) ； 5．(D)； 6．(C).二、填空题：（本大题共12题，每题4分，满分48分）7. 8. 2(2)(2)a a a +-； 9. 3x <； 10. 3y x =-+； 11.329； 12．23430y y --=； 13．1122a b +； 14．62.01410-⨯； 15． 30；16． P （5，2-）； 17． 5或3； 18．512r <≤或者6013r =．三、解答题（本大题共7题，其中第19---22题每题10分，第23、24题每题12分，第25题14分，满分78分） 19．解:原式=1++………………………………………………………………6′（各2分）=11-++……………………2′=………………………………………………………………………………………2′20．解：23()111x x x x x x -÷-+-=3(1)(1)()11x x x x x x x+--⋅-+……………………………………1′=3(1)(1)x x +-- …………………………………………………2′=24x +. ……………………………………………………………1′3(2)2,(1)4251(2)x x x x --≥⎧⎨-<+⎩由(1)得2x ≤，…………………………………………………………………………………2′由(2)得3x >-，………………………………………………………………………………2′∴不等式的解集是 32x -<≤，符合不等式解集的整数是2-，1-，0，1，2. 当2x =时，原式=8. ………………………………………………………………………………2′（备注：代正确都得分）21. 解：（1）污染小组人数=50–（3+6+11+13+6）=11（人）．…………………………………………2′ 污染小组每人捐款数=5038(10315630115013606)11⨯-⨯+⨯+⨯+⨯+⨯……………2′=40 ．………………………………………………………………………2′（2）该班捐款金额的众数为50元；………………………………………………………………2′该班捐款金额的中位数为40元；……………………………………………………………2′22．(1)△ABC 是等腰三角形．……………………………………………………1′证明：过点D 作DE ⊥AB 于点E ，DF ⊥AC 于点F ．………………………1′ ∵AD 是角平分线，∴DE=DF ．………………………………………………………………1′又∵AD 是△ABC 的中线， ∴BD=CD ，∴△BDE ≌△O E F 第22题D ABCMCDF．………………………………………………………1′∴∠B=∠C，∴AB=AC，…………………………………………………………………1′即△ABC是等腰三角形．（2）AD过△ABC的外接圆圆心O，⊙O是△ABC的外接圆．…………………………………1′证明：∵AB=AC，AD是角平分线，∴AD⊥BC，…………………………………………………………………………………2′又∵BD=CD，∴AD过圆心O．………………………………………………………………………………1′作边AB的中垂线交AD于点O，交AB于点M，则点O就是△ABC的外接圆圆心，∴⊙O是△ABC的外接圆．……………………………………………………………………1′23. 解：（1）抛物线2=+经过点A（4，0）、B（2，2），y ax bx∴得1640,42 2.a b a b +=⎧⎨+=⎩，…………………………………………………………………………2′解得：1,22.a b ⎧=-⎪⎨⎪=⎩ …………………………………………………………………………2′∴抛物线解析式是212.2y x x =-+证明：（2）过点B 作BC ⊥OA 于点C ∴BC=OC=CA=2．………………………………………1′∠BOC=∠BAC=45°， ………………………………1′∴∠OBA=90°， ………………………………………1′ ∴△ABO 等腰直角三角形． 解：（3）点P 坐标（，-）．………………………………………………………………1′ 当x=21(2(2y =-⨯+⨯=1--≠-，…………………………………………1′ ∴点P 不在此抛物线上．……………………………………………………………………………1′24．解：（1）由题意得：∠CBD=60°，∠BDC=30∴∠BCD=90∵BD=120海里，∴BC=12BD=60海里．∵快艇的速度为60海里/小时，∴快艇到达C处的时间：60160t==（2）作CF⊥DA于点F，∵DC=2BD=∴在Rt△CDF中，∠CDF=30°，∴CF=12CD=，DF=2CD=2（海里）．∴t快艇（小时）．而=20(40S⨯=+考察船（1+1<90，…………………………………………2′∴两船不可能在点F处相遇．………………………………………………………………1′假如两船在点O处（点O在DF之间）相遇，设快艇从小岛C出发后最少需x小时与考察船相遇，相遇时考察船共用了（x+2）小时，∴OD=20（x+2），CF=1′第24题∵OF=DF–OD，∴OF=90–20x–40=50–20x，CO=60 x．…………………………………………………1′在Rt△COF中，由勾股定理得222CF FO CO+=，∴2225020)(60)x x+-=（（，………………………………………………………2′整理得285130x x+-=，解得11x=，2138x=-（不合题意舍去）．………………………………………………1′∴快艇从小岛C出发后最少需要1小时才能和考察船相遇．……………………………1′25.解：(1)∵∠B=∠B，∠BDE=∠A，∴△BDE∽△BAC，………………………………………………1′∴BD BEAB BC=，即556x y-=，∴655y x=-．……………………………………………………1′定义域： 0<x256≤．……………………………………………1′(2) 当⊙D与边AB相切时，DC=6–x ，645xx-=，………………………………………………………………………xy5-y5B第25题EACD………………1′ 解得103x =．…………………………………………………………………………………1′(3) 由（1）知ED=BD=x ，Er =AE=655y x=-，Dr = DC=6–x ．………………………………………………………2′要使⊙D 与⊙E 相切，只有E r +D r =x 或D r –E r =x 或E r –D r =x ． ………………………3′①E r +D r =x 时， 655x-+6–x=x ，解得5516x =；……………………………………………………………1′ ②D r –E r =x 时， 6–x –（655x -）=x ，解得54x =；…………………………………………………………1′ ③E r –D r =x 时，655x -–（6–x ）=x ，解得 16x =-（不合题意，舍去） 此时无解．………………………………………………………………………………………1′综上所述：∵5516x =<256，54x =<256， ∴当BD=5516或54时，⊙D 与⊙E 相切．……………………………………………1′。

2018~2019学年上海市普陀区九年级二模数学试卷（时间：100分钟，满分150分）一、选择题（本大题共6题，每题4分，满分24分） 1. 下列计算中，正确的是（ ）（A ）235()a a =；（B ）236a a a ⋅=； （C ）2236a a a ⋅=； （D ）2235a a a +=． 2. 如图，直线1l //2l ，如果130∠=︒，250∠=︒，那么3∠=（ ）（A ）20︒； （B ）80︒；（C ）90︒；（D ）100︒．3. 2011年，国际数学协会正式宣布，将每年的3月14日设为国际数学节，这与圆周率π有关，下列表述中，不正确的是（ ） （A ） 3.14π=；（B ）π是无理数；（C ）半径为1cm 的圆的面积等于2cm π；（D ）圆周率是圆的周长与直径的比值．4. 下列函数中，如果0x >，y 的值随x 的值增大而增大，那么这个函数是（ ）（A ）2y x =-；（B ）2y x=； （C ）1y x =-+； （D ）21y x =-． 5. 如果一组数据3、4、5、6、x 、8的众数是4，那么这组数据的中位数是（ ）（A ）4；（B ）4.5；（C ）5；（D ）5.5．6. 如图，ABCD 的对角线AC 、BD 交于点O ，顺次联结ABCD 各边中点得到的一个新的四边形，如果添加下列四个条件中的一个条件：①AC BD ⊥；①ABO CBO C C =△△；①DAO CBO ∠=∠；①DAO BAO ∠=∠，可以使这个新的四边形成为矩形，那么这样的条件个数是（ ）（A ）1个；（B ）2个；（C ）3个； （D ）4个．二、填空题（本大题共12题，每题4分，满分48分） 7. 分解因式：22a a +=___________． 8. 函数131y x =-的定义域是___________． 9. 不等式组210;34.x x x -<⎧⎨-≤⎩的解集是___________．10. 月球离地球近地点的距离为363300千米，数据363300用科学记数法表示是___________． 11. 如果2a =、1b =-，那么代数式2a b -的值等于___________．12. 如果关于x 的方程2320x x m -+-=有两个相等的实数根，那么m 的值等于_________． 13. 抛物线225y ax ax =-+的对称轴是直线___________．14. 张老师对本校参加体育兴趣小组的情况进行调查，下图是收集数据后绘制的两幅不完整统计图，已知参加体育兴趣小组的学生共有80名，其中每名学生只参加一个兴趣小组，根据图中提供的信息，可知参加排球兴趣小组的人数占参加体育兴趣小组总人数的百分数是___________．第14题图15. 如图，传送带AB 和地面BC 所成斜坡的坡度为1:3，如果它把物体从地面送到离地面2米高的地方，那么物体所经过的路程是___________米．（结果保留根号）16. 如图，AD 、BE 是ABC △的中线，交于点O ，设OB a =u u u r r ，OD b =u u u r r ，那么向量AB u u u r用向量a r 、b r表示是___________．第15题图 第16题图 第17题图17. 如图，一个大正方形被平均分成9个小正方形，其中有2个小正方形已经被涂上阴影，在剩余的7个白色小正方形中任选一个涂上阴影，使图中涂上阴影的三个小正方形组成轴对称图形，这个事件的概率是___________．18. 如图，AD 是ABC △的中线，点E 在边AB 上，且DE AD ⊥，将BDE △绕着点D 旋转，使得点B 与点C 重合，点E 落在点F 处，联结AF 交BC 于点G ，如果52AE BE =，那么GFAB的值等于___________．第18题图 三、解答题19. （本题满分10分）计算：312019212sin 60227(1)2-⎛⎫︒-+--- ⎪⎝⎭．解方程：242193x x x =--+．21. （本题满分10分）如图，已知点D 、E 分别在ABC △的边AB 和AC 上，DE //BC ，13DE BC =，ADE △的面积等于3．（1）求ABC △的面积； （2）如果9BC =，且2cot 3B =，求AED ∠的正切值．某工厂生产一种产品，当生产数量至少为20吨，但不超过60吨时，每吨的成本y（万元/吨）与生产数量x（吨）之间是一次函数关系，其图像如图所示．（1）求出y关于x的函数解析式；（2）如果每吨的成本是4.8万元，求该产品的生产数量；（3）当生产这种产品的总成本是200万元时，求该产品的生产数量．23.（本题满分12分）已知：如图，在四边形ABCD中，AD BC<，点E在AD的延长线上，ACE BCD∠=∠，2EC ED EA=⋅．（1）求证：四边形ABCD为梯形；（2）如果EC ABEA AC=，求证：2AB ED BC=⋅．在平面直角坐标系xOy 中，直线24(0)3y x m m =-+>与x 轴、y 轴分别交于点A 、B如图所示，点C 在线段AB 的延长线上，且2AB BC =．（1）用含字母m 的代数式表示点C 的坐标；（2）抛物线21103y x bx =-++经过点A 、C ，求此抛物线的表达式；（3）在位于第四象限的抛物线上，是否存在这样的点P ：使PAB OBC S S =△△，如果存在，求出点P 的坐标，如果不存在，试说明理由．如图1，在Rt ABC△中，90ACB∠=︒，5AB=，4cos5BAC∠=，点O是边AC上一个动点（不与A、C重合），以点O为圆心，AO为半径作①O，①O与射线AB交于点D；以点C为圆心，CD为半径作①C，设OA x=．（1）如图2，当点D与点B重合时，求x的值；（2）当点D在线段AB上，如果①C与AB的另一个交点E在线段AD上时，设AE y=，试求y与x之间的函数解析式，并写出x的取值范围；（3）在点O的运动的过程中，如果①C与线段AB只有一个公共点，请直接写出x的取值范围.图1 图22018~2019学年上海市普陀区九年级二模数学试卷参考答案一、选择题二、填空题三、解答题19. 解：312019212sin 60227(1)2-⎛⎫︒-+--- ⎪⎝⎭2815=+=20. 解：242193x x x =--+ 原方程可化为：242(3)(9)x x x =--- 整理得：2230x x +-= (3)(1)0x x +-= 解得：13x =-，21x =．经检验，13x =-是方程的增根，故舍去． 所以，原方程的解为1x =． 21. 解：22.解：23.证明：24.解：25.解：。

2018年上海市普陀区中考物理二模试卷一、选择题（共16分）下列各题均只有一个正确选项，请将正确选项的代号用2B铅笔填涂在答题纸的相应位置上，更改答案时，用橡皮擦去，重新填涂．1．（3分）摄氏温标规定，在标准大气压下，冰水混合物的温度为（）A．0℃B．20℃C．60℃D．100℃2．（3分）下列各星球中，属于行星的是（）A．月球B．地球C．彗星D．太阳3．（3分）古筝表演前，演奏者调节琴弦的松紧是为调节琴声的（）A．响度B．音调C．音色D．振幅4．（3分）光从空气斜射入玻璃中，折射角为35°，入射角可能为（）A．0°B．20°C．60°D．90°5．（3分）如图所示，是四冲程发动机工作时的一个冲程，下列说法中正确的是（）A．这是压缩冲程，该冲程将机械能转化为内能B．这是压缩冲程，该冲程将内能转化为机械能C．这是做功冲程，该冲程将内能转化为机械能D．这是做功冲程，该冲程将机械能转化为内能6．（3分）如图所示，通电螺线管N极，磁感线方向、小磁针N极和电源正负极标注正确的是（）A．B．C．D．7．（3分）甲、乙两车同时、同地、同向沿直线运动，它们的s﹣t图象如图所示，下列说法中正确的是（）A．甲车的速度大于乙车的速度B．运动过程中，甲、乙两车之间的距离始终不变C．运动2.4米，甲车比乙车多用4秒D．运动5秒，乙车通过的路程比甲车多1.2米8．（3分）在图所示的电路中，电源电压保持不变，当电键S由断开到闭合，电压表V1和V2示数均不变。

若电路故障只出现在电阻R1或R2，断开电键S，用完好的小灯L替换R1或R2进行检测，下列判断正确的是（）A．用灯L替换R2，灯L亮，一定R1短路B．用灯L替换R1，灯L亮，一定R2短路C．用灯L替换R2，灯L不亮，一定R1断路D．用灯L替换R1，灯L不亮，一定R2断路二、填空题（共23分）请将结果填入答题纸的相应位置．9．（3分）一节干电池电压为伏。

2018年上海普陀区初三二模试卷（满分：150分，完成时间：100分钟，在答题纸上完成）考生注意：1.本卷共27题。

2.请将所有答案做在答题纸的指定位置上，做在试卷上一律不计分。

一、文言文（40分）（一）默写（15分）1. 僵卧孤村不自哀，。

（《十一月四日风雨大作》）2. 东边日出西边雨，。

（《竹枝词》）3. ，西北望，射天狼。

（《江城子·密州出猎》）4. ，无案牍之劳形。

（《陋室铭》）5. 向吾不为斯役，。

（《捕蛇者说》）（二）阅读下面的词，完成第6—7题（4分）蝶恋花伫倚危楼风细细，望极春愁，黯黯生天际。

草色烟光残照里，无言谁会凭阑意？拟把疏狂图一醉，对酒当歌，强乐还无味。

衣带渐宽终不悔，为伊消得人憔悴。

6. “望极”的意思是。

（2分）7. 下列理解不正确的一项是。

（2分）A.这是一首怀人之作，上阕写境，下阕抒情。

B.词人借用细风、春草，歌咏了春天的生机。

C.痛饮狂歌终觉无味更说明“春愁”的缠绵。

D.“终不悔”表现词人感情坚贞和态度执着。

（三）阅读下文，完成第8－10题（9分）伤仲永金溪民方仲永，世隶耕。

仲永生五年，未尝识书具，忽啼求之；父异焉，借旁近与之。

即书诗四句，并自为其名，其诗以养父母、收族为意，传一乡秀才观之。

自是指物作诗立就，其文理皆有可观者。

∥邑人奇之，稍稍宾客其父；或以钱币乞之。

父利其然也，日扳仲永环谒于邑人，不使学。

8. 本文作者是代的（人名）。

（2分）9. 用现代汉语翻译下面的句子。

（3分）或以钱币乞之。

10.这段文字按“∥”分为两层，请简要概括内容。

（4分）（1）（2）（四）阅读下文，完成第11－13题（12分）王烈字彦方，太原人也。

少师事陈寔，以义行称。

乡里有盗牛者，主得之，盗请罪曰：“刑戮是甘①，乞不使王彦方知也。

”烈闻而使人谢之，遗．布一端②。

或问其故，烈日：“盗惧吾闻其过．，是有耻恶之心，既怀耻恶，必能改善，故以此激③之。

”后有老父④遗剑于路，行道一人见而守之。

普陀区2018学年第二学期初三质量调研理化试卷（满分150分考试时间100分钟）物理部分考生注意：1．本试卷物理部分含五个大题。

2．答题时，考生务必按答题要求在答题纸规定的位置上作答，在草稿纸，本试卷上答题一律无效。

一、选择题（共16分）下列各题均只有一个正确选项，请将正确选项的代号用2B铅笔填涂在答题纸的相应位置上，更改答案时，用橡皮擦去，重新填涂。

1．依据卢瑟福的原子“行星模型”，绕核高速旋转的粒子是A．质子B．中子C．电子D．核子2．2018年上海市发布噪声污染治理办法，对噪声大的机动车限行，这主要是为了限定机动车在道路行驶中发出声音的A．响度B．音调C．音色D．频率3．四冲程汽油机在工作过程中，将机械能转化为内能的冲程是A．吸气冲程B．压缩冲程C．做功冲程D．排气冲程4．在平静的湖面上，一只气球慢慢升起，关于这只气球在水中的“倒影”，下列说法中正确的是A．光的反射形成，像逐渐变小B．光的折射形成，像逐渐变小C．光的反射形成，像的大小不变D．光的折射形成，像的大小不变5．如图1所示，用大小相同的力F匀速提起两个物体，若不计滑轮重及摩擦，则两物体所受重力的大小关系是A．G1＝2G2B．G1＝12G2C．G1＝4G2 D．G1＝14G26．质量相同的甲、乙两物体同时同地同方向做匀速直线运动，它们的s-t图像如图2（a）、（b）所示，则下列说法中正确的是A．甲、乙运动快慢相同B．运动5秒两车相距1.5米C．甲、乙的动能可能都变大D．甲、乙的机械能可能都变大图1 （a）图2 （b）7．在图3所示的电路中，电源电压保持不变。

闭合电键S ，滑动变阻器滑片P 向右移动的过程中 A ．电压表V 的示数变大 B ．电流表A 2的示数变大C ．电流表A 1与电流表A 2示数的比值变小D ．电压表V 与电流表A 示数的比值变大8．如图4所示，高度相同的均匀实心圆柱体A 和正方体B 放置在水平地面上，A 的直径等于B 的边长，它们对水平地面的压强相等。

2018年上海市普陀区中考二模物理试卷_、单的1.科学探究需要进行实验，在取得数据和事实后，再进行分析和牌，因此，在科学探究中我们需要区分事实与推论.下列叙述是事实成推论的是（）①在气体扩散实验中，抽去玻璃板后，红棕色的他气体进入到空气中I②^液体扩散实殴中，红昼水滴入热水，热水很快变红1⑧扩球象表明，一切物质的分子都在不停地做无规则运动】④a唳高，分子的无疫则运动越剧烈.是咚，B.是事实，c.奉实，D.⑧©是事实，①®*推论2.如图所示，电源电压和灯L的电阻不变，灯L上标有“6V3W”字样.当开关S闭合，滑片P移至8端时，电流表的示数为1.0A,灯L正常发光；当开关S断开，滑片P移至b端时，电源电压U和灯L 消耗的电功率P为（急略温度对灯丝电阻的彩响）（）A.3V、1.51B.3V、0.751C.6V、1.51D.6V、0.75W3.两个定值电阻&、氏并联在电路中，如图甲所示，它们的电流与其两端的电压关系如图乙所示，闭合开关S,则七珞产生的热量之比为（）b0.6A.2：1B.1：2C.4：1D.1：44.“赏中华诗词、寻文化基因、品生活之类”的《中国诗词大会〉，深受观众的青昧.下列对古诗文中涉及的热现象解释正篇的是（）A.“雾密沆砺，天与云与山与水，上下一白.”雾密的形成是升华现象B.“月落乌啼霜滴天，江枫渔火对碗眠.”霜的形成是汽化现象C.“青青园中葵，朝II侍日晞.“It的形成是汽化现象D.“膛蛇乘雾，终为土灰,“雾的形成是液化现象5.下列说法中正确的是A.春天的早晨经常出现大雾,这是汽化现象B.夏天揭开冰棒包装后会看到冰棒冒“白气“，这是摄华现象C.秋天的早晨花草上出现小的虐珠，这是液化现象D.初冬的早晨地面上会出现白色的籍,这是凝固现象6.如图所示，在“探文杠杆的平衡条件”实殴中，已知杠杆上每个小格长度为2cm,当弹簧测力计在A 点斜向上拉杠杆(已知3。

°角所对的边等于斜边的一半).使杠杯在水平位置平衡时，下列说法正确的是---sjA.动力皆为°°8mB.钩码卷富为2NC.动力乘以动力胥即为弹簧测力计对杠杆做功的多少D.在实验中，改变力和力野的大小得到多鲍数据的目的是多次测童取平均值减小误差7.如图所示为科研人员研制的“发电鞋”，鞋的内部安装了磁铁和线・，当人体带动磁佚运动时，磁铁产生的磁场斑过线圈，从而产生感应电流.当人以5Wh的逑度行走时，其发电的功率约为0.4叽下列说法正确的是()A.发电鞋工作时将电能转化为机械能B.发电鞋是利用电磁够应原理工作的C.发电鞋是利用电流破效应原理工作的D.在人以5kn/h的速度行走lh的过程中，发电鞋可以产生的0.4J的电能8.下列物态变化的过程中，吸收热置的是()(1)春天，冰"化(2)夏天，从冰箱里面*出来的饮料1*“出汗”(3)秋天，清晨出现的雾(4)冬天，早晨在太阳照射下，草地上的捋消失.A.(1)(2)B.(1)(4)C.(2)(3)D.(2)(4)二、埴空题9.如图所示，台秤上放置一4^*适量水的烧杯，巳知烧杯和水的总重为2牛，将一重力为1.2牛、体积为2X10-4米3的长方体实心物块A用细线吊着，将其一半浸入水中，则A受到的浮力为牛.当把细经勇断后，静止时A漂浮在水中且水未溢出，则A受到的浮力为_牛，台秤的示数为牛.1F ftfF10.小华同学通过实验探究某种液体内部的压强P与深度h的关系，根据实验数据绘出了如图的图象由图象可知，该液体的密度为__5^并且由图象可以得出该液体50CI1深处的压强为Pa.（g取lON/kg）11.物体放在水平地面，在拉力的作用下，从A点匀速运动到C点，已知Fi：&=2:3,如图所示，若AB 段拉力做的功为％、功率为P”BC拉力做的功为版、功奉为P2,则为:盼=_____，Pi：P尸______，12.如图所示，在教室里，小明敲响者叉时，与音叉接触的乒乓球会弹起来，这一球说明发声的物体在_________»若遗过嫦娥号将该装置带到月球表面上进行实验，则（选填“能,或“不能”）观察到上裁象.13.白天江、河、湖、海以及大地表层中的水不断蒸发，当含有很多水蒸气的空气升入高空时，水蒸％遇冷（填写物态变化名称，下同）成灯的小水珠大量的小冰晶，小水珠和小冰晶被热气流托浮在空中，这就是我们看到的“云”・在一定的条件下，小水珠和小冰晶会越来越大，大到一定程度时，热气流托不住就会下落，下落过程中，冰晶____________滴，与原来的水清一起落到地面，这就形成了“雨”・当夜间气温降低时，如果空,中有较多的浮尘，空气中的水蒸气会在夜间较冷的环境下______________水珠，吸附在这些浮尘上面，就形成了“雾”・14.如图所示是一种水位报警装置，工作过程：当水位上升时，浮子A上升并推动B上升，当到达一定水位时，电磁铁电路________（填“接通”或“断开”）.电磁佚__破性（填“有”或“无”），徊佚被吸下，使电灯电路接通，电灯亮誓告水位过高.15.如图所示，松开封气球口的夹子，气球向右运动.以吸管为参照物，铁架台;松开夹子向左撤气，而气球却向右运动，这说明物体间・16.近年来，冬季取暧有了新方法：利用石昼烯电热涂料供暖.涂料通电发热后，通过改变房间内空气的内能.一间空房的地面面积是14武，高为细，在房质的三面埼上各涂有某品牌石墨烯电热涂料1成，该涂料的单位发热功率为1200W/lrf.现同时给它们通电，ftiiin内可使室温升高10P,此过程中房间内平尚每秒钟损失的热童是__J・［空气密度为1.3kg/-、空气比热容为1.0X1伊J/（kg・P）］17.如图是两束光分别射向并通过甲渤脚乙两淑t的光路图.由图可知_（甲/乙）透依是凹毗，可用于_（近视/远视）眼的矫正.三、作图题18.如图所示，一个小球从高处下落到竖直放置的弹簧上并压堵弹簧向下做减速运动，忽略空气阻力,iS出小球所受的重力G和弹力F.19.如图所示，0为支点，在图中A点画出使用该羊角锥拔钉子时最小力F】.20.为使轻质杠杆AB 在如图所示位置静止，清你在杠杆上面出所施加■小动力Fi 的示童图，并作出阻力 F2的力管12.^zzz^zzzz四、计算题21. 为了纪念引深入津修建了纪念碑.碑高10m 、宽3m 、厚2m,石头的密度为2.6X1（WS・如果地面 能承受的录大压强是1.2X106Pa,现把纪念碑立在高血 密度为ZXIOWm 长方体基石上，基石的底 面积如果是1",符合要求吗？（g=10N/kg ）123422. 如图所示，电源电压一定.已知灯泡L 标有“6V, 7.2T 字样（灯泡电阻不受温度影响〉，（1） 求灯泡L 的电阻阻值|（2） 求电源的电压；（3） 在S 闭合的情况下，通过对&、&的控制和调节清动变阻暴Ro,可使整个电路所消耗的总功率录小, 请求出电路兑功率的吸小值；（4） 在S 闭合的情况下，通过对如&的控制和调节滑动变阻器Ro,可施个电路所消耗的兑功率最大, 请求出电路总功率的最大值23.如图甲所示是液压汽车起重机从水中打捞重物的示意图.A 是动滑轮，B 是定滑轮，C 是卷扬机，D 是油钮，E 是柱塞，0B=50F.通过卷扬机转动使钢丝制带动A 上升，被打捞重物的体积是V=0.海，密度 为4.0乂1伊蛔/吧 重物出水前滑轮组的效率为60%,重物出水前卷扬机牵弓|力做的功随时间变化图象如 图乙所示，求IR=10Q,滑动变阻器Ro 的最大阻值为40Q.开关S 、&闭合后，滑动变阻器％的滑动WIP 在a 端时， 灯泡L 正常发光.IfW/J(1)被打捞物体的武力？⑵重物出水前匀速上升的速度?(3)假设起重时E始终是沿竖直方向向上的力，忽略吊膏、滑轮及钢丝绳的重力和各种岸擦，物体离开水面后E对0B至少要施加多大的力才能吊起被打捞重物？五、24.在探究“压力的作用效果”时，某同学利用小桌、海绵和秩码等器材进行如图所示的实验，[-41—KM甲乙丙(1)实验中通过观察海绵的_____比较压力的作用效果.⑵分析图乙和两图实验，可得出结论：当压力一定时，受力面积越小，压力的作用效果越明显。

2018年普陀区初三数学二模试卷（时间：100分钟，满分：150分）考生注意：1．本试卷含三个大题，共25题．答题时，考生务必按答题要求在答题纸规定的位置上作答，在草稿纸、本试卷上答题一律无效．2．除第一、二大题外，其余各题如无特别说明，都必须在答题纸的相应位置上写出证明或计算的主要步骤．一、选择题：（本大题共6题，每题4分，满分24分）[下列各题的四个选项中，有且只有一个选项是正确的，选择正确项的代号并填涂在答题纸的相应位置上]1. 下列计算中，错误的是 ············································································· （▲） （A ）120180=； （B ）422=-；（C ）2421=； （D ）3131=-．2.下列二次根式中，最简二次根式是 ······························································ （▲） （A ）a 9； （B ）35a ； （C ）22b a +； （D ）21+a ． 3.如果关于x 的方程022=++c x x 没有实数根，那么c 在2、1、0、3-中取值是 ··· （▲） （A ）2； （B ）1； （C ）0； （D ）3-． 4.如图1，已知直线CD AB //，点E 、F 分别在AB 、CD 上，CFE ∠:EFB ∠3=:4，如果40B ∠=o，那么BEF ∠＝········································································· （▲） （A ）20o ； （B ）40o ； （C ）60o ； （D ）80o ．5. 自1993年起，联合国将每年的3月22日定为“世界水日”，宗旨是唤起公众的节水意识，加强水资源保护．某校在开展“节约每一滴水”的活动中，从初三年级随机选出20名学生统计出各自家庭一个月的节约用水量，有关数据整理如下表． 节约用水量（单位：吨）11.21.422.5ABCDFE图1图 2家庭数 4 6 5 3 2这组数据的中位数和众数分别是 ···································································· （▲） （A ）1.2，1.2； （B ）1.4，1.2； （C ）1.3，1.4； （D ）1.3，1.2． 6. 如图2，已知两个全等的直角三角形纸片的直角边分别为a 、b )(b a ≠，将这两个三角形的一组等边重合，拼合成一个无重叠的几何图形，其中轴对称图形有 ···················· （▲） （A ）3个； （B ）4个； （C ）5个； （D ）6个．二、填空题：（本大题共12题，每题4分，满分48分）7.计算：xy x 3122⋅＝ ▲ ．8.方程32x x =+的根是 ▲ ．9.大型纪录片《厉害了，我的国》上映25天，累计票房约为402700000元，成为中国纪录电影票房冠军．402700000用科学记数法表示是 ▲ ．10.用换元法解方程312122=+-+x x x x 时，如果设y xx =+21，那么原方程化成以y 为“元”的方程是 ▲ ．11.已知正比例函数的图像经过点M (2-,1)、),(11y x A 、),(22y x B ，如果21x x <，那么1y ▲ 2y ．（填“＞”、“＝”、“＜”）12.已知二次函数的图像开口向上，且经过原点，试写出一个符合上述条件的二次函数的解析式： ▲ ．（只需写出一个）13.如果一个多边形的内角和是720o ，那么这个多边形的边有 ▲ 条．14.如果将“概率”的英文单词 probability 中的11个字母分别写在11张相同的卡片上，字面朝下随意放在桌子上，任取一张，那么取到字母b 的概率是 ▲ ．15.2018年春节期间，反季游成为出境游的热门，中国游客青睐的目的地仍主要集中在温暖的东南亚地区．据调查发现2018年春节期间出境游约有700万人， 游客目的地分布情况的扇形图如图3所示，从中可知出境游东南亚 地区的游客约有 ▲ 万人．A 东南亚欧美澳新16%港澳台 15%韩日11%其他13% 图3y xO ABC图 6A BCDE 图7ABCDEF图 4BCDOA 图516. 如图4，在梯形ABCD 中，BC AD //，AD BC 3=，点E 、F 分别是边AB 、CD 的中点．设a AD =，b DC =，那么向量EC 用向量、表示是 ▲ ．17. 如图5，矩形ABCD 中，如果以AB 为直径的⊙O 沿着BC 滚动一周，点B 恰好与点C 重合，那么ABBC的值等于 ▲ ．（结果保留两位小数）18. 如图6，在平面直角坐标系xOy 中，△ABC 的顶点A 、C 在坐标轴上，点B 的坐标是(2,2)．将△ABC 沿x 轴向左平移得到△111A B C ，点1B 落在函数6y x=-的图像上．如果此时四边形11AA C C 的面积等于552，那么点1C 的坐标是 ▲ ．三、解答题：（本大题共7题，满分78分）19．（本题满分10分）先化简，再求值：42442222---++÷+x x x x x x x ，其中22x -.20．（本题满分10分）求不等式组()7153,31>34x x x x ⎧++⎪⎨--⎪⎩≥的整数解.21．（本题满分10分）如图7，在Rt △ABC 中，90C ∠=o ，点D 在边BC 上，DE ⊥AB ，点E 为垂足，7AB =，45DAB ∠=o ，3tan 4B =. （1）求DE 的长；（2）求CDA ∠的余弦值．22．（本题满分10分）小张同学尝试运用课堂上学到的方法，自主研究函数21y x=的图像与性质.下面是小张同学在研究过程中遇到的几个问题，现由你来完成： （1）函数21y x =的定义域是 ▲ ； （2）下表列出了y 与x 的几组对应值：x… 2-32- m34- 12- 1234 1 32 2… y…144911694 416914914…表中m 的值是 ▲ ；（3）如图8，在平面直角坐标系xOy 中，描出以表中各组对应值为坐标的点，试由描出的点画出该函数的图像； （4）结合函数21y x =的图像，写出这个 函数的性质： ▲ .（只需写一个）23．（本题满分12分）已知：如图9，梯形ABCD 中，AD ∥BC ，DE ∥AB ，DE 与对角线AC 交于点F ，FG ∥AD ，且FG EF =.（1）求证：四边形ABED 是菱形； （2）联结AE ，又知AC ⊥ED ，求证：212AE EF ED =g .图8A B CDE F G图924．（本题满分12分）如图10，在平面直角坐标系xOy 中，直线3y kx =+与x 轴、y 轴分别相交于点A 、B ，并与抛物线21742y x bx =-++的对称轴交于点()2,2C ，抛物线的顶点是点D ．（1）求k 和b 的值；（2）点G 是y 轴上一点，且以点B 、C 、G 为顶点的三角形与△BCD 相似，求点G 的坐标；（3）在抛物线上是否存在点E ：它关于直线AB 的对称点F 恰好在y 轴上．如果存在，直接写出点E 的坐标，如果不存在，试说明理由．25．（本题满分14分）已知P 是O ⊙的直径BA 延长线上的一个动点，P ∠的另一边交O ⊙于点C 、D ，两点位于AB 的上方，AB ＝6，OP m ＝，1sin 3P ＝，如图11所示．另一个半径为6的1O ⊙经过点C 、D ，圆心距1OO n ＝． （1）当6m ＝时，求线段CD 的长；（2）设圆心1O 在直线AB 上方，试用n 的代数式表示m ；（3）△1POO 在点P 的运动过程中，是否能成为以1OO 为腰的等腰三角形，如果能，试求出此时n 的值；如果不能，请说明理由．图10xy1 1OOAB备用图P DOABC 图112018年普陀区初三数学二模参考答案及评分说明一、选择题：（本大题共6题，每题4分，满分24分）1．(B)； 2．(C)； 3．(A)； 4．(C)； 5．(D)； 6．(B). 二、填空题：（本大题共12题，每题4分，满分48分） 三、解答题（本大题共7题，其中第19---22题每题10分，第23、24题每题12分，第25题14分，满分78分）19．解：原式()()22+22(2)22x x x x x x x -=-+-+g ················································· （3分） 122x x x =-++ ····································································· （2分） 12x x -=+. ··············································································· （1分）当2x时，原式=······················································· （1分）=··························································· （1分）. ························································· （2分） 20．解：由①得，2x ≥-. ·········································································· （3分）由②得，x ＜3. ··········································································· （3分） ∴原不等式组的解集是2<3x -≤． ················································· （2分） 所以，原不等式组的整数解是2-、1-、0、1、2． ··························· （2分）21．解：7.323x y ； 8. 3x =； 9. 810027.4⨯ ； 10. 32=-yy ； 11．>；12. 2y x =等；13．6； 14．112； 15．315； 16．b a ρρ212+；17．3.14；18．(5-,211)．（1）∵DE ⊥AB ，∴︒=∠90DEA又∵45DAB ∠=o ，∴AE DE =． ······················································ （1分）在Rt △DEB 中，︒=∠90DEB ，43tan =B ，∴43=BE DE ． ······················· （1分） 设x DE 3=，那么x AE 3=，x BE 4=．∵7AB =，∴743=+x x ，解得1=x ． ··············································· （2分） ∴3=DE ． ··················································································· （1分） （2） 在Rt △ADE 中，由勾股定理，得23=AD ． ····································· （1分）同理得5=BD ． ············································································· （1分） 在Rt △ABC 中，由43tan =B ，可得54cos =B ．∴528=BC ． ················ （1分） ∴53=CD ． ·················································································· （1分）∴102cos ==∠AD CD CDA ． ····························································· （1分）即CDA ∠． 22．解：（1）0x ≠的实数； ·················································································· （2分） （2）1-； ······························································································ （2分） （3）图(略)； ·························································································· （4分） （4）图像关于y 轴对称； 图像在x 轴的上方；在对称轴的左侧函数值y 随着x 的增大而增大，在对称轴的右侧函数值y 随着x 的增大而减小；函数图像无限接近于两坐标轴，但永远不会和坐标轴相交等． ···················· （2分） 23．证明：（1）∵ AD ∥BC ，DE ∥AB ，∴四边形ABED 是平行四边形． ···················· （2分）∵FG ∥AD ，∴FG CFAD CA=． ······························································ （1分） 同理EF CFAB CA =． ··········································································· （1分） 得FG AD＝EF AB∵FG EF =，∴AD AB =． ······························································· （1分） ∴四边形ABED 是菱形． ··································································· （1分） （2）联结BD ，与AE 交于点H ．∵四边形ABED 是菱形，∴12EH AE =，BD ⊥AE ． ··························· （2分） 得90DHE ∠=o ．同理90AFE ∠=o ．∴DHE AFE ∠∠＝． ········································································ （1分） 又∵AED ∠是公共角，∴△DHE ∽△AFE ． ······································· （1分）∴EH DEEF AE =． ··············································································· （1分） ∴212AE EF ED =g ． ······································································· （1分） 24．解：（1） 由直线3y kx =+经过点()2,2C ，可得12k =-. ····································· （1分）由抛物线21742y x bx =-++的对称轴是直线2x =，可得1b =. ················· （1分）（2） ∵直线132y x =-+与x 轴、y 轴分别相交于点A 、B ，∴点A 的坐标是()6,0，点B 的坐标是()0,3. ········································ （2分）∵抛物线的顶点是点D ，∴点D 的坐标是92,2⎛⎫ ⎪⎝⎭. ·································· （1分）∵点G 是y 轴上一点，∴设点G 的坐标是()0,m .∵△BCG 与△BCD 相似，又由题意知，GBC BCD ∠=∠，∴△BCG 与△BCD 相似有两种可能情况： ··········································· （1分） ①如果BG BCCB CD ＝52＝，解得1m ＝，∴点G 的坐标是()0,1. ··· （1分） ②如果BG BC CD CB ＝，那么352m -＝，解得12m ＝，∴点G 的坐标是10,2⎛⎫⎪⎝⎭. （1分） 综上所述，符合要求的点G 有两个，其坐标分别是()0,1和10,2⎛⎫⎪⎝⎭．（3）点E 的坐标是91,4⎛⎫- ⎪⎝⎭或92,2⎛⎫ ⎪⎝⎭. ···················································· （2分+2分）25．解：（1）过点O 作OH ⊥CD ，垂足为点H ，联结OC ．在Rt △POH 中，∵1sin 3P ＝，6PO =，∴2OH =．······························ （1分） ∵AB ＝6，∴3OC ＝． ······································································ （1分）由勾股定理得 CH = ·································································· （1分）∵OH ⊥DC ，∴2CD CH == ················································· （1分） （2）在Rt △POH 中，∵1sin 3P ＝， PO m ＝，∴3mOH ＝． ·························· （1分） 在Rt △OCH 中，2293m CH ⎛⎫- ⎪⎝⎭＝． ···················································· （1分）在Rt △1O CH 中，22363m CH n ⎛⎫-- ⎪⎝⎭＝． ············································· （1分）可得 2236933m m n ⎛⎫⎛⎫--- ⎪ ⎪⎝⎭⎝⎭＝，解得23812n m n -＝． ······························ （2分）（3）△1POO 成为等腰三角形可分以下几种情况：● 当圆心1O 、O 在弦CD 异侧时①1OP OO ＝，即m n ＝，由23812n n n-＝解得9n ＝． ······························ （1分）即圆心距等于O ⊙、1O ⊙的半径的和，就有O ⊙、1O ⊙外切不合题意舍去．（1分）②11O P OO ＝n ＝，解得23m n ＝，即23n 23812n n -＝，解得n ······························· （1分） ● 当圆心1O 、O 在弦CD 同侧时,同理可得 28132n m n-＝．∵1POO ∠是钝角，∴只能是m n =，即28132n n n -＝，解得n ． ········ （2分）综上所述，n。

2018年上海市普陀区中考英语二模试卷一、Listening comprehension （听力理解）（共30 分）1．（6分）1．2．3．4．5．6．2．（1分）A．By car．B．By underground．C．By bus．D．By bike．3．（1分）A．A cook．B．A doctor．C．An engineer．D．An actor．4．（1分）A．The dirty streets．B．The busy city life．C．The bad weather．D．The poor bus services．5．（1分）A．Mother and son．B．Husband and wife．C．Teacher and student．D．Customer and clerk．6．（1分）A．Nice trips．B．Favourite sports．C．Public places．D．Healthy drinks．7．（1分）A．At the restaurant．B．At the library．C．At the supermarket．D．At the post office．8．（1分）A．See a film．B．Make a pizza．C．Read a book．D．Finish a book review．9．（1分）A．Tim went to the library to have a talk with Moly．B．Moly missed the art lessons in the afternoon．C．The monitor organized a discussion about the spring outing．D．The two speakers had a meeting on the art projects．10．（6分）（1）Sara used to buy lottery tickets （彩票）and could always win some money．（2）Once Sara won ￥55million and was suddenly known by many people．（3）Over 200people sent Sara e﹣mails to ask for suggestions about how to win lottery tickets．（4）Sara moved to another town in order to keep away from the news reporters．（5）Sara set up a group to help poor students start their business after college．（6）Sara is famous because she has done some good things with the money she has．11．（10分）（1）Two robbers entered a hotel on the night of a Monday．（2）The robbers took the money from the hotel's safe and．（3）Then the robbers went into a and robbed some money there．（4）The robbers were both wearing and blue jeans．（5）The hotel staff and the repairman（修理工）said the robbers were．二、Choose the best answer （选择最恰当的答案）（共20分）12．（1分）Which of the following underlined parts is different in pronunciation from the others？（）A．This tea table is for sale．B．Mark will plan for a trip to Hong Kong．C．Where's my school bag？D．We usually have some noodles for lunch．13．（1分）Many schools provide free lessons for students to play ________ football in the afternoon．（）A．the B．/ C．a D．an14．（1分）The manager was angry ________ Morris because he sent e﹣mails to the wrong customer again．（）A．at B．to C．with D．from15．（1分）We should work hard and do ________ best to realize our dreams（）A．us B．our C．ours D．ourselves16．（1分）Turn the heat down，_______ the food in the pot will burn．（）A．and B．so C．but D．or17．（1分）﹣Which pair of jeans do you prefer，the one with the blue belt or the one with the red belt？﹣________．I like the one with the brown belt．（）A．Both B．All C．None D．Neither18．（1分）Have ________ try and maybe you will find a proper solution．（）A．another B．the other C．other D．others19．（1分）The first snow came _______ than usual in our hometown this year．（）A．early B．earlier C．earliest D．the easiest20．（1分）Jill likes her new neighborhood because most people here greet others with a ______ smile．（）A．lovely B．happily C．politely D．beautifully21．（1分）The company didn't stop improving this new machine ________ it worked well．（）A．if B．unless C．until D．after22．（1分）We wondered if Judy ________ to Australia next week for business．（）A．flies B．had flown C．has flown D．would fly23．（1分）Many leaders ________ to attend the Closing Ceremony（闭幕式）of Winter Olympics in February，2018．（）A．be invited B．were invitedC．will be invited D．have been invited24．（1分）All the members of the team hope ________ a wonderful result of the project．（）A．had B．have C．to have D．having25．（1分）The girl practiced ________ the piano for three hours every day to win the contest．（）A．play B．plays C．to play D．playing26．（1分）Rose and Minnie ________ each other pretty well before they worked in the same bank．（）A．knows B．know C．have known D．had known27．（1分）Kevin ________ in his room when the big fire broke out．（）A．sleep B．slept C．was sleeping D．will sleep28．（1分）﹣________ people are coming to the party？﹣About 40．（）A．How many B．How soon C．How far D．How long29．（1分）Wendy________ join our school football team next term，but she is notvery sure．（）A．should B．may C．must D．need30．（1分）﹣The sun shines brightly．Why not go out for a walk in the school garden？﹣________（）A．Good idea． B．That's all right．C．Not at all．D．Thank you very much．31．（1分）﹣Would you like me to bring you a cup of tea？﹣________（）A．Yes，I'd like to．B．It's a pleasure．C．Yes，please．D．It doesn't matter．三、Complete the following passage with the words or phrases in the box. Each can only be used once （将下列单词或词组填入空格．每空限填一词，每词只能填一次）（共8分）32．（4分）A．Even if B．familiar C．spare D．In fact E nervous You may not know a lot of people when you start high school．This really makes you feel （1）because you don't know who to talk to when you have problems．（2）you know some freshmen（新生），you still feel worried that you don't know any elder students and teachers．How are you going to make friends with these unknown people？（3），most high schools hold a freshman training before school actually starts．These are helpful because you learn your way around the buildings．You also get to meet some of your teachers and other freshmen．That way，you may already recognize a few（4）faces when you go to school on your first day．33．（4分）A．support B．clubs C．friendships D．expect E．awardsWhen you talk to people in the training camp，you'll probably find that a lot of them are feeling just like you are．They're all new to the school and don't knowwhat to（1）．Talking about a common interest with your classmates can help you develop（2）．The work in high school sometimes worries freshmen a lot．The work in high school gives you more knowledge of many subjects．So you may find it's a bit more challenging．If you ever find your work too difficult，teachers can （3）you．High school also has more after﹣school activities，such as music and theatre groups，sports teams and（4）．This is a good chance to learn how to be more independent．It is also a good time to develop your interests and try new things．四、Complete the sentences with the given words in their proper forms （用括号中所给单词的适当形式完成下列句子．每空格限填一词）（共8分）34．（1分）Many people buy nice as presents for their friends．（watch）35．（1分）Jessie is learning to cook for though she is only seven years old．（her）36．（1分）The government should be for the food safety to protect citizens．（responsibility）37．（1分）My cousin's flat is on the floor with a good view of the neighbourhood．（ten）38．（1分）High﹣speed train is a great to help people travel easily between big cities．（invent）39．（1分）This new test will doctors to find the disease as early as possible．（able）40．（1分）This is a place to see various birds，but it's still to see such ahuge one here．（usual）41．（1分）Robots will do some jobs in place of workers in the coming years．（possible）五、Complete the following sentences as required （根据所给要求完成句子．）（共14分）42．（2分）The girl baked a nice cake for her mother yesterday．（改为一般疑问句）the girl a nice cake for her mother yesterday？43．（2分）Rony needs 3，000 dollars if he wants to buy the second﹣hand machine．（对划线部分提问）does Rony need if he wants to buy the second﹣hand machine？44．（2分）The kids reviewed the story several times before they gave the performance．（保持句意基本不变）The kids the story several times before they gave the performance．45．（2分）Nancy told us an interesting story yesterday．（改为感叹句）interesting story Nancy told us last night!46．（2分）"Can you book a room in Dragon Hotel on line for me？" Jane asked Peter．（改为含有宾语从句的复合句）Jane asked Peter he book a room in Dragon Hotel on line for her．47．（2分）They wash the buses of the company twice a week．（改为被动语态）The buses of the company twice a week．48．（2分）it，solve the problem，to，is，without any help，hard （连词成句）．六、Reading Comprehension （阅读理解）（共50分）49．（12分）The university students begin their summer holiday today．They are making their holiday plans．1．Grace wants to take some special pictures with her parents before celebrating her twentieth birthday next week．2．Peter needs to ．3．Tom wants to find a part﹣time job at weekends to earn some money for his study．4．Jenny is too fat．She knows it's not good for her health and wants to take more exercise．5．Linda is interested in playing the violin and wants to get someone to teach her face to face．The following are what they have read in today's newspaper．*Greenland Sports GroundOpen next week from 6：20a．m．to 8：30p．m．Price：￥3per hour （￥7per hour for those over 60 ）Tel：68886888*City MuseumThere are 120，000pieces on show here．You can see the whole of local history under one roof．There are also lots of mummies and more gold than you've ever seen before．Time：Monday ﹣Friday 9：00a．m．﹣5：00p．m．，Weekends 9：00a．m．﹣9：00p．m．Ticket：￥20 （￥10for students）Tel：23455884*Star Photo shopPhotos for all purposes are taken here with half price for family photos．Time ：Monday ﹣Friday 8：30a．m．﹣8：30p．m．，Weekends 9：00a．m．﹣10：00p．m．Price：￥60/set ﹣￥180/setTel：32045302*Scottish dancingTake your partners and get ready to dance till you drop．Scottish dancing is fun and easy to learn．Place：Jack Stein's Time：every Tuesday 7：00p．m．﹣0：00p．m．Price：￥60including one drink Tel：67099868*Part﹣time job offeredDo you want to have a chance to communicate with those who do shopping？If so，you may contact Moonlight Bookshop，for two shop assistants are wanted here．Time ：Saturday &amp; Sunday 10：00a．m．﹣8：00p．m．Tel：52310032*Help from a music teacherDo you want to improve your violin skills？Just bring your own instrument to M&amp;D MusicCentre and start to learn at your own speed after a small test．Time：Wednesday &amp; Friday 7：00p．m．﹣8：30p．m．Price：￥40 （￥20for students）Tel：28335661（1）Grace may be interested in the information about．A．Star Photo shopB．Greenland Sports GroundC．Scottish dancingD．Help from a music teacher（2）What can be filled in the "" for Peter if he is interested in City Museum？A．learn about goldB．finish history homeworkC．make a travel planD．know more local people（3）Tom may work as a for a part﹣time job．A．dancerB．teacherC．shop assistantD．violin player（4）Jenny needs to pay per hour if she wants to get more physical exercise．A．￥3B．￥7C．￥10D．￥20（5）Linda needs to if she wants to get a face﹣to﹣face trainer．A．call 67099868to get more informationB．attend lessons at weekendsC．tell the training centre about her levelD．take a small test first（6）The students have probably found the information they need on the page．A．newsB．sportsC．businessD．advertisement50．（12分）When my daughter，Sophie，was admitted to a college we were very happy，but a little worried about becoming empty nesters（空巢老人）．I knew I had to do something，starting with the summer before she was away from home．Sophie had a pack of colourful blouses．I knew she wouldn't wear them anymore，so I decided to make a quilt（被子）out of them．I tried to work on the quilt when Sophie （1）﹣which turned out to be often．She was very busy with her friends．Even when she was at home，her door was shut more than usual．This made me feel a bit hurt．（2），we didn't have much timetogether before she went to college．When we arrived at the college，a wave of emotion flooded me．Sophie saw it in my face．She took a beautiful （3）from her bag．"I made this for you，Mom，" she said．Then I knew why she had been staying behind a （4）door that summer．It was an album of photographs recording the life of our family over the last 17years．I broke into tears．Some of it was sadness at having to let her go，but some of it was （5）．I knew that our connection was more（6）than ever as we would always be connected by the strongest link，the love that went into every stitch（针脚）of her quilt and every photo in my album．In Sophie's dormitory room I unfolded the quilt on her bed．For a moment she was speechless．Then she threw her arms around me．"Mom，I love you，" she said．One of her new friends was calling her outside．Sophie turned，and I let her go．（1）A．felt tired B．went out C．had time D．fell asleep （2）A．By the way B．What's more C．For example D．After all （3）A．model B．dress C．book D．card（4）A．heavy B．broken C．closed D．narrow （5）A．joy B．surprise C．desire D．fear（6）A．important B．powerful C．serious D．difficult51．（14分）When children play games，they don't need a referee（裁判）．They have their own rules in playing games．They seldom find it necessary to keep scores because they don't worry about who wins or loses．They even don't （1）c if the game is not finished．Yet，they like games that depend a lot on luck，so thattheir （2）a are not so important．They also enjoy games that move in stages in which they choose leaders and pick up sides．Grown﹣ups （3）r find children's games exciting，and they often feel puzzled at why their kids play such simple games again and again．However，it is found that a child plays games for some important（4）r He can be a good player without having to think whether he is a popular person，and he can find himself being a （5）u partner to someone who is more popular in real life．When it is his turn to be the leader，everyone follows his orders．This makes him feel more （6）c．It seems that when children play a game，they （7）i a situation under their control．Unlike real life，in this situation they make the rules themselves，and more importantly，everyone plays according to the rules．Those rules may be childish，but they make sure that every child has a chance to win．52．（12分）Donna Reid had just finished her training as a children's doctor．A famous research hospital in New York had offered her a job with good pay．And her boyfriend，Tony，had a clinic in their hometown and hoped she could work with him．At the same time，a small hospital，Backwoods Hospital，in a very poor area had also offered Donna a position．Now it was time for her to decide where to work．Dad：Donna，that research hospital in New York has a good reputation for children's medicine．Some of the best children's doctors in the country work there and you can learn a lot from them．Mom：Yes，I agree it's a good hospital and the pay is good，too．But，that's not the point．Dad：Then what's the point？Mom：It's in New York，too far away! Let me tell you what，dear Donna．Tony's clinic is just several blocks away．You don't need to travel far if you work there．Tony is a nice young man and I guess you'll get married soon．Dad：Ha! It's hard enough to live with a husband or wife．Working with them，too？That's a choice for trouble．Well，Donna，what do you think？Donna：I'm thinking about accepting the offer from Backwoods Hospital．Dad：But Donna，look at their offer! You'll be on call six days a week，24hours a day．That's really a hard job．Mom：Oh，Donna，the pay is another problem．Donna：It isn't a dead﹣end job，Mom and Dad．But anyway，I didn't．Dad：No？Then why did you become a doctor？Donna：I want to help people．You know that．And Backwoods serves a very poor and needy population．Backwoods，here I come!（1）How many choices did Donna have？．（2）Where did Dad suggest Donna work？．（3）Why did Dad think Donna could learn a lot in the place he suggested？．（4）According to Mom，what was the advantage if Donna worked in Tony's clinic？Donna could．（5）What did the parents worry about when Donna said she wanted to work in Backwoods？．（6）What could be filled in the blank to complete the sentence for Donna？I didn't．七、Writing （作文）（共20分）53．（20分）Write at least 60words on the topic "When I have trouble with my best friend"【以"我与好朋友闹矛盾后"为题，写一篇不少于60词的短文，标点符号不占格】提示：生活中好友间也会因各种原因闹些小矛盾，当你与朋友间产生不愉快后，你会如何处理此类问题呢？请就此话题谈谈你的做法以及这样做的理由，可结合自身经历进行阐述．（注意：短文中不得出现任何人名、校名及其他相关信息，否则不予评分．）2018年上海市普陀区中考英语二模试卷参考答案与试题解析一、Listening comprehension （听力理解）（共30 分）1．（6分）1．略2．略3．略4．略5．略6．略【解答】略2．（1分）A．By car．B．By underground．C．By bus．D．By bike．【解答】略3．（1分）A．A cook．B．A doctor．C．An engineer．D．An actor．【解答】略4．（1分）A．The dirty streets．B．The busy city life．C．The bad weather．D．The poor bus services．【解答】略5．（1分）A．Mother and son．B．Husband and wife．C．Teacher and student．D．Customer and clerk．【解答】略6．（1分）A．Nice trips．B．Favourite sports．C．Public places．D．Healthy drinks．【解答】略7．（1分）A．At the restaurant．B．At the library．C．At the supermarket．D．At the post office．【解答】略8．（1分）A．See a film．B．Make a pizza．C．Read a book．D．Finish a book review．【解答】略9．（1分）A．Tim went to the library to have a talk with Moly．B．Moly missed the art lessons in the afternoon．C．The monitor organized a discussion about the spring outing．D．The two speakers had a meeting on the art projects．【解答】略10．（6分）（1）Sara used to buy lottery tickets （彩票）and could always win some money．略（2）Once Sara won ￥55million and was suddenly known by many people．略（3）Over 200people sent Sara e﹣mails to ask for suggestions about how to win lottery tickets．略（4）Sara moved to another town in order to keep away from the news reporters．略（5）Sara set up a group to help poor students start their business after college．略（6）Sara is famous because she has done some good things with the money she has．略【解答】略11．（10分）（1）Two robbers entered a hotel on the night of a Monday略略．（2）The robbers took the money from the hotel's safe and略略．（3）Then the robbers went into a略略and robbed some money there．（4）The robbers were both wearing略略and blue jeans．（5）The hotel staff and the repairman（修理工）said the robbers were略略．【解答】略二、Choose the best answer （选择最恰当的答案）（共20分）12．（1分）Which of the following underlined parts is different in pronunciation fromthe others？（）A．This tea table is for sale．B．Mark will plan for a trip to Hong Kong．C．Where's my school bag？D．We usually have some noodles for lunch．【解答】考查语音．A这张茶几待售sale[seil]．B马克将计划去香港旅行plan[plæn]．C我的书包在哪里bag[bæɡ]？D我们午餐通常吃面条have[hæv]．A 选项划线部分发/ei/．B，C，D选项划线部分发/æ/．因此划线部分发音不同的一项是A．故选：A．13．（1分）Many schools provide free lessons for students to play ________ football in the afternoon．（）A．the B．/ C．a D．an【解答】考查冠词．句意"许多学校在下午为学生提供免费的足球课．"．play+球类，中间不加冠词．故选：B．14．（1分）The manager was angry ________ Morris because he sent e﹣mails to the wrong customer again．（）A．at B．to C．with D．from【解答】考查动词短语．at在几点或小地点．to到…with和…from来自…句意"经理对莫里斯很生气，因为他又给错误的客户发了电子邮件．"．be angry with sb 对某人生气．固定搭配．故选：C．15．（1分）We should work hard and do ________ best to realize our dreams（）A．us B．our C．ours D．ourselves【解答】根据语境推测句意是"我们应该努力学习，尽我们最大努力实现我们的梦想．"，此处考查固定短语try one's best ，所以填形容词性物主代词．故选：B．16．（1分）Turn the heat down，_______ the food in the pot will burn．（）A．and B．so C．but D．or【解答】and，并且，表并列关系；so，因此表结果；but但是，表转折；or，否则，或者，表选择；此题根据语境把热度调低，不然锅里的食物就要烧了．否则是or．故选：D．17．（1分）﹣Which pair of jeans do you prefer，the one with the blue belt or the one with the red belt？﹣________．I like the one with the brown belt．（）A．Both B．All C．None D．Neither【解答】both两个都；all三个或三个以上都；none没有，表示量；neither，两个都不；此题根据语境"你更喜欢哪条牛仔裤，那条蓝色带的还是红腰带的？﹣我两个都不喜欢．我喜欢棕色皮带的那个．"两个都不是neither．故选：D．18．（1分）Have ________ try and maybe you will find a proper solution．（）A．another B．the other C．other D．others【解答】首先明确选项中出现的单词的意思和用法：another"另一个"（三者或三者以上中的另一个）；the other"其他的/两者中的另一个"；other"其他的"（形容词，修饰可数名词复数）；others"其他人"（是一个代词）．故选：A．19．（1分）The first snow came _______ than usual in our hometown this year．（）A．early B．earlier C．earliest D．the easiest【解答】根据The first snow came _______ than usual in our hometown this year，这里句子中有than，判断句子使用比较级形式．故选：B．20．（1分）Jill likes her new neighborhood because most people here greet others with a ______ smile．（）A．lovely B．happily C．politely D．beautifully【解答】首先明确选项中每个单词意思，A：令人愉快的（形容词）；B：快乐地（副词）；C：有礼貌地（副词）；D：美丽地（副词）；根据题干结合推测设空处句子的句意是"Jill喜欢她的新街坊，因为这里大多数人问候别人时带着令人愉快的微笑．"，设空处修饰名词，用形容词，由此判断句子中缺少"令人愉快的"一词．故选：A．21．（1分）The company didn't stop improving this new machine ________ it worked well．（）A．if B．unless C．until D．after【解答】if 如果，引导条件状语从句；unless除非，引导条件状语从句；until 直到；引导时间转语从句，一般用于结构not …until 中；after在…之后，引导时间转语从句；此题根据语境"公司一直在改进这台新机器，直到它运转良好为止．"直到是until．故选：C．22．（1分）We wondered if Judy ________ to Australia next week for business．（）A．flies B．had flown C．has flown D．would fly【解答】根据句意"我们想知道朱迪是否下周要去澳大利亚出差．"以及时间状语next week，可知要用将来时，再根据主句的谓语是过去式，可知要用过去将来时．A是一般现在时，B过去完成时．C现在完成时．故选：D．23．（1分）Many leaders ________ to attend the Closing Ceremony（闭幕式）of Winter Olympics in February，2018．（）A．be invited B．were invitedC．will be invited D．have been invited【解答】根据时间状语为in February，2018故确定句子的时态为一般过去时态，主语many leaders是谓语动词invite的承受者二者形成被动关系，故确定为被动语态，故谓语动词为一般过去时态的被动语态，其结构为was/were+过去分词，主语many leaders 是复数，故助动词为were，故填入were told．故选：B．24．（1分）All the members of the team hope ________ a wonderful result of the project．（）A．had B．have C．to have D．having【解答】根据All the members of the team hope ________ a wonderful result of the project．可知句子考查hope to do sth表示希望做某事．故选：C．25．（1分）The girl practiced ________ the piano for three hours every day to win the contest．（）A．play B．plays C．to play D．playing【解答】根据The girl practiced ________ the piano for three hours every day to win the contest．可知句子考查practice doing sth表示练习做某事．故选：D．26．（1分）Rose and Minnie ________ each other pretty well before they worked in the same bank．（）A．knows B．know C．have known D．had known【解答】根据句意"罗斯和明妮在同一个银行工作之前，他们已经彼此认识了．"以及before 引导的时间状语从句可知，从句用的是一般过去时，主句要用过去完成时．A是一般现在时．B一般现在时．C现在完成时．D过去完成时．故选：D．27．（1分）Kevin ________ in his room when the big fire broke out．（）A．sleep B．slept C．was sleeping D．will sleep【解答】结合语境推测句意是"当大火突然发生的时候，Kevin在房间里睡觉．"，判断设空处的动作在过去某个时间段内正在进行着，且动作在一段时间内持续进行，所以用过去进行时，过去进行时的构成是：主语+was/were+动词的现在分词．故选：C．28．（1分）﹣________ people are coming to the party？﹣About 40．（）A．How many B．How soon C．How far D．How long【解答】考查数量．A．How many多少，提问数量；B．How soon多久，提问时间；C．How far多远，提问距离；D．How long多久，提问时间段．根据题干About 40．可知问的是数量．故选：A．29．（1分）Wendy________ join our school football team next term，but she is not very sure．（）A．should B．may C．must D．need【解答】结合选项可知本题考查情态动词，首先明确选项中每个单词的意思：A：应该；B：可能；C：必须；D：需要；结合题干but she is not very sure推测句意是"Wendy可能下个学期加入我们校足球队，但是她现在不确定．"，所以may 符合句意，故选：B．30．（1分）﹣The sun shines brightly．Why not go out for a walk in the school garden？﹣________（）A．Good idea． B．That's all right．C．Not at all．D．Thank you very much．【解答】考查情境对话．A．Good idea．好主意；B．That's all right．没关系；C．Not at all．不客气；D．Thank you very much．非常感谢．根据题干The sun shines brightly．Why not go out for a walk in the school garden？可知应说好主意．故选：A．31．（1分）﹣Would you like me to bring you a cup of tea？﹣________（）A．Yes，I'd like to．B．It's a pleasure．C．Yes，please．D．It doesn't matter．【解答】考查情境对话．根据题干Would you like me to bring you a cup of tea？可知肯定的回答用Yes，please．否定用No，thanks结合选项，应说好的，谢谢．故选：C．三、Complete the following passage with the words or phrases in the box. Each can only be used once （将下列单词或词组填入空格．每空限填一词，每词只能填一次）（共8分）32．（4分）A．Even if B．familiar C．spare D．In fact E nervous You may not know a lot of people when you start high school．This really makes you feel （1）E because you don't know who to talk to when you have problems．（2）A you know some freshmen（新生），you still feel worried that you don't know any elder students and teachers．How are you going to make friends with these unknown people？（3）D，most high schools hold a freshman training before school actually starts．These are helpful because you learn your way around the buildings．Youalso get to meet some of your teachers and other freshmen．That way，you may already recognize a few（4）B faces when you go to school on your first day．【解答】1．E．形容词考查，feel是系动词，后加形容词构成系表结构，结合because you don't know who to talk to 句意可知是不知道和谁说话，故会感到紧张nervous，故答案是E．2．A．短语考查，结合you know some freshmen（新生），you still feel worried that you don't know any elder students and teachers句意你认识一些人，你还会因为不认识任何一个高年级的学生和老师感到担忧，故用even if即使，引导的让步状语从句，故答案是A．3．D．短语考查，这里用插入语，与后面的句子隔开，用in fact事实上，故答案是D．4．B．形容词考查．空格用来修饰faces，故用形容词，结合句意表达你可能已经认识一些熟悉的面孔了，familiar熟悉的，故答案是B．33．（4分）A．support B．clubs C．friendships D．expect E．awardsWhen you talk to people in the training camp，you'll probably find that a lot of them are feeling just like you are．They're all new to the school and don't know what to（1）D．Talking about a common interest with your classmates can help you develop（2）C．The work in high school sometimes worries freshmen a lot．The work in high school gives you more knowledge of many subjects．So you may find it's a bit more challenging．If you ever find your work too difficult，teachers can （3）A you．High school also has more after﹣school activities，such as music and theatre groups，sports teams and（4）B．This is a good chance to learn how to be more independent．It is also a good time to develop your interests and try new things．【解答】1．D．考查动词．句意"他们对学校都很陌生，不知道该__什么．"．根据所给单词，可知，应该是"期盼"．不定式to后用动词原形expect．选D．2．C．考查名词．句意"和你的同学谈论共同的兴趣可以帮助你发展__．"．根据所给单词，可知，应该是"友谊"．用名词复数friendships．选C．3．A．考查动词．句意"老师会__你"．根据上一句If you ever find your work too difficult如果你发现你的功课太难了．可知，应该是"支持"．情态动词can后用动词原形support．选A．4．B．考查名词．句意"比如音乐和戏剧团体、运动队和__"．根据所给单词，可知，应该是"俱乐部"．不止一个俱乐部，用复数clubs．选B．四、Complete the sentences with the given words in their proper forms （用括号中所给单词的适当形式完成下列句子．每空格限填一词）（共8分）34．（1分）Many people buy nice watches as presents for their friends．（watch）【解答】根据Many people buy nice﹣﹣as presents for their friends．（watch）可知这里friends是复数，所以给他们买的表也应该用复数．故填watches．35．（1分）Jessie is learning to cook for herself though she is only seven years old．（her）【解答】根据Jessie is learning to cook for﹣﹣though she is only seven years old．（her）可知这里for oneself表示为自己．故填herself．36．（1分）The government should be responsible for the food safety to protect citizens．（responsibility）【解答】根据The government should be﹣﹣for the food safety to protect citizens．（responsibility）可知这里放在be动词后面跟形容词．故填responsible．37．（1分）My cousin's flat is on the tenth floor with a good view of the neighbourhood．（ten）【解答】根据My cousin's flat is on the﹣﹣floor with a good view of the neighbourhood．（ten）可知这里表示几楼用序数词形式．故填tenth．38．（1分）High﹣speed train is a great invention to help people travel easily between big cities．（invent）【解答】根据High﹣speed train is a great﹣﹣to help people travel easily between big cities．（invent）可知形容词后面跟名词，这里含有冠词a，应该用单数．故填invention．39．（1分）This new test will enable doctors to find the disease as early as possible．（able）【解答】根据This new test will﹣﹣doctors to find the disease as early as possible．（able）可知这里考查enable sb to do sth表示使某人能做某事．故填enable．40．（1分）This is a place to see various birds，but it's still unusual to see such a huge one here．（usual）【解答】根据该空处在句中作表语，所给词usual为形容词意为"寻常的、通常的"可以在句中作表语，根据题干"This is a place to see various birds，but it's still…to see such a huge one here．"可知该句为but连接的并列句，前后句子表达转折的关系，根据上半句的意思"这是一个可以看到各种鸟类的地方"可推知在这里看到这么大的鸟不寻常，故填入usual的反义词unusual"不同寻常的"．故答案为：unusual．41．（1分）Robots will possibly do some jobs in place of workers in the coming years．（possible）【解答】根据该空处在句中作状语修饰动词do ，故填入副词，所给词possible 为形容词"可能的"；其对应的副词为possibly"可能地"．故填入possibly．五、Complete the following sentences as required （根据所给要求完成句子．）（共14分）42．（2分）The girl baked a nice cake for her mother yesterday．（改为一般疑问句）Did the girl bake a nice cake for her mother yesterday？【解答】考查一般疑问句．由baked 过去式．可知，一般过去时态，变一般疑问句在句首用助动词did．谓语动词用原形bake．答案是Did，bake．43．（2分）Rony needs 3，000 dollars if he wants to buy the second﹣hand machine．（对划线部分提问）How much does Rony need if he wants to buy the second﹣hand machine？【解答】根据Rony needs 3，000 dollars if he wants to buy the second﹣hand machine．这里3，000 dollars 是价格，询问价格用how much．故填How much．44．（2分）The kids reviewed the story several times before they gave the performance．（保持句意基本不变）The kids went over the story several times before they gave the performance．。