详细解析：兰生复旦中学2017学年度第一学期期中测试

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【精品】2017年上海市杨浦区兰生复旦中学八年级上学期期中物理试卷与答案

2016-2017学年上海市杨浦区兰生复旦中学八年级（上）期中物理试卷一.选择题1．在图中，将正在发声的音叉缓慢接触用细线挂起的乒乓球，乒乓球会反复被弹开，利用这一实验可以研究（）A．声波能否在真空中传播B．声波产生的原因C．音调是否与频率有关D．声波传播的快慢2．一只小猫正在平面镜前欣赏自己的全身像，如图所示。

此时它所看到的全身像应是图中的（）A．B．C．D．3．如图所示，将一支竹筷子插入水中，从空气中所看到的现象应该是（）A．B．C．D．4．徐爷爷用焦距为8厘米的放大镜看书，通过放大镜可以清晰地看到书上正立放大的文字，则书离放大镜的距离可能是（）A．5厘米B．8厘米C．12厘米D．20厘米5．有一台光电控制液面高度的仪器，它通过光束射在液面上的反射光线打到电光屏（能将光信号转化为电信号进行处理）上来显示液面的高度，然后通过装置调节液面的高度。

如图，所示的光路图，入射光线与竖直成30度，s1s2长为10cm 表示液面的高度（）A．上升10cm B．下降10cm C．上升8.7cm D．下降8.7cm6．如图所示，一平面镜放在圆筒的中心处，平面镜正对筒壁上一点光源S，点光源发出一细光束垂直射向平面镜。

平面镜从图示位置开始绕圆筒中心轴O匀速转动，在转动15°角时，点光源在镜中所成的像转过的角度θ1，照射到筒壁上的反射光斑转过的角度θ2，则（）A．θ1=30°，θ2=30°B．θ1=30°，θ2=60°C．θ1=60°，θ2=30°D．θ1=60°，θ2=60°7．如图所示是一张在湖边拍摄的照片。

因为湖水平静，岸上景物与湖中倒影在照片上十分相似。

下列几种方法哪一种不能用来正确区分真实景物与它在湖中的倒影的是（）A．倒影比真实景物暗一些B．倒影比真实景物的清晰度略差一些C．倒影中人物排列的左右位置与拍照时的真实位置正好相反D．倒影中树越远越小8．如图所示，有一正方形的不透光的房间，在其中的一面墙上开有一个圆形小孔。

上海民办兰生复旦中学初中数学九年级上期中复习题(专题培优)

一、选择题1．题目文件丢失！2．题目文件丢失！3．题目文件丢失！4．题目文件丢失！5．题目文件丢失！6．题目文件丢失！7．题目文件丢失！8．题目文件丢失！9．题目文件丢失！10．题目文件丢失！11．题目文件丢失！12．题目文件丢失！13．题目文件丢失！14．题目文件丢失！15．题目文件丢失！二、填空题16．题目文件丢失！17．题目文件丢失！18．题目文件丢失！19．题目文件丢失！20．题目文件丢失！21．题目文件丢失！22．题目文件丢失！23．题目文件丢失！24．题目文件丢失！25．题目文件丢失！三、解答题26．题目文件丢失！27．题目文件丢失！28．题目文件丢失！29．题目文件丢失！30．题目文件丢失！【参考答案】2016-2017年度第*次考试试卷参考答案**科目模拟测试一、选择题1．D2．C3．B4．D5．B6．D7．D8．D9．C10．A11．B12．D13．B14．C15．A二、填空题16．15π【解析】【分析】设圆锥母线长为l根据勾股定理求出母线长再根据圆锥侧面积公式即可得出答案【详解】设圆锥母线长为l∵r=3h=4∴母线l=∴S侧=×2πr×5=×2π×3×5=15π故答案为15π17．【解析】∵x2﹣3x+k=0有两个相等的实数根∴△=∴9﹣4k=0∴k=故答案为18．10【解析】【分析】由扇形的弧长等于圆锥的底面周长列式计算【详解】设圆锥底面圆的半径为r则2πr=解得：r=10所以圆锥的底面半径为10故答案为：10【点睛】考查了圆锥的计算及扇形的弧长的计算的知识19．【解析】【分析】【详解】∵将△ABC绕点B顺时针旋转60°得到△BDE∴△ABC≌△BDE∠CBD=60°∴BD=BC=12cm∴△BCD为等边三角形∴CD=BC=BD=12cm在Rt△ACB中AB20．1800°【解析】试题分析：这个正多边形的边数为=12所以这个正多边形的内角和为（12﹣2）×180°=1800°故答案为1800°考点：多边形内角与外角21．【解析】【分析】先求出袋子中球的总个数及白球的个数再根据概率公式解答即可【详解】∵在一个不透明的口袋中装有3个红球1个白球共4个球∴任意摸出1个球摸到白球的概率是【点睛】本题考查了概率公式解题的关键22．【解析】【分析】先确定出原抛物线的顶点坐标为（00）然后根据向左平移横坐标加向下平移纵坐标减求出新抛物线的顶点坐标然后写出即可【详解】抛物线的顶点坐标为（00）∵向左平移1个单位长度后向下平移2个单23．2π【解析】【分析】【详解】解：∵圆锥的底面圆的半径为1∴圆锥的底面圆的周长=2π×1=2π∴圆锥的侧面积=×2π×2=2π故答案为2π【点睛】本题考查了圆锥的侧面积公式：S=l•R圆锥侧面展开图为24．【解析】【分析】连接OAOB根据一条弧所对的圆周角等于它所对的圆心角的一半得∠AOB＝90°又OA＝OBAB＝4根据勾股定理得圆的半径是2【详解】解：连接OAOB∵∠C＝45°∴∠AOB＝90°又∵25．15【解析】分析：先判断出∠BAD=150°AD=AB再判断出△BAD是等腰三角形最后用三角形的内角和定理即可得出结论详解：∵将△ABC绕点A逆时针旋转150°得到△ADE∴∠BAD=150°AD=三、解答题26．27．28．29．30．2016-2017年度第*次考试试卷参考解析【参考解析】**科目模拟测试一、选择题1．D解析：解析丢失2．C解析：解析丢失3．B解析：解析丢失4．D解析：解析丢失5．B解析：解析丢失6．D解析：解析丢失7．D解析：解析丢失8．D解析：解析丢失9．C解析：解析丢失10．A解析：解析丢失11．B解析：解析丢失12．D解析：解析丢失13．B解析：解析丢失14．C解析：解析丢失15．A解析：解析丢失二、填空题16．15π【解析】【分析】设圆锥母线长为l根据勾股定理求出母线长再根据圆锥侧面积公式即可得出答案【详解】设圆锥母线长为l∵r=3h=4∴母线l=∴S侧=×2πr×5=×2π×3×5=15π故答案为15π解析：解析丢失17．【解析】∵x2﹣3x+k=0有两个相等的实数根∴△=∴9﹣4k=0∴k=故答案为解析：解析丢失18．10【解析】【分析】由扇形的弧长等于圆锥的底面周长列式计算【详解】设圆锥底面圆的半径为r则2πr=解得：r=10所以圆锥的底面半径为10故答案为：10【点睛】考查了圆锥的计算及扇形的弧长的计算的知识解析：解析丢失19．【解析】【分析】【详解】∵将△ABC绕点B顺时针旋转60°得到△BDE∴△ABC≌△BDE∠CBD=60°∴BD=BC=12cm∴△BCD为等边三角形∴CD=BC=BD=12cm在Rt△ACB中AB解析：解析丢失20．1800°【解析】试题分析：这个正多边形的边数为=12所以这个正多边形的内角和为（12﹣2）×180°=1800°故答案为1800°考点：多边形内角与外角解析：解析丢失21．【解析】【分析】先求出袋子中球的总个数及白球的个数再根据概率公式解答即可【详解】∵在一个不透明的口袋中装有3个红球1个白球共4个球∴任意摸出1个球摸到白球的概率是【点睛】本题考查了概率公式解题的关键解析：解析丢失22．【解析】【分析】先确定出原抛物线的顶点坐标为（00）然后根据向左平移横坐标加向下平移纵坐标减求出新抛物线的顶点坐标然后写出即可【详解】抛物线的顶点坐标为（00）∵向左平移1个单位长度后向下平移2个单解析：解析丢失23．2π【解析】【分析】【详解】解：∵圆锥的底面圆的半径为1∴圆锥的底面圆的周长=2π×1=2π∴圆锥的侧面积=×2π×2=2π故答案为2π【点睛】本题考查了圆锥的侧面积公式：S=l•R圆锥侧面展开图为解析：解析丢失24．【解析】【分析】连接OAOB根据一条弧所对的圆周角等于它所对的圆心角的一半得∠AOB＝90°又OA＝OBAB＝4根据勾股定理得圆的半径是2【详解】解：连接OAOB∵∠C＝45°∴∠AOB＝90°又∵解析：解析丢失25．15【解析】分析：先判断出∠BAD=150°AD=AB再判断出△BAD是等腰三角形最后用三角形的内角和定理即可得出结论详解：∵将△ABC绕点A逆时针旋转150°得到△ADE∴∠BAD=150°AD=解析：解析丢失三、解答题26．解析丢失27．解析丢失28．解析丢失29．解析丢失30．解析丢失。

2016-2017学年兰生复旦七年级第一学期英语期中考试卷

兰生复旦中学2016学年度第一学期期中考试七年级英语试卷Part One Listening （25%）I. Listen and choose the right picture. 根据你所听到的内容，选出相应的图片。

1）2）3）4）5）II. Listen to the dialogue and choose the best answer to the question you hear. 根据你听到的对话和问题，选出最恰当的答案（5%）1. A) A science fiction. B) A text book.C) A comic strip. D) A story book.2. A) 80 Y uan B) 90 YuanC) 100 Yuan D) 110 Yuan3. A) By taxi. B) By bus.C) By underground. D) On foot.4. A) In a library. B) In a hospital.C) In a cinema. D) In a restaurant.5. A) She was given the wrong juice.B) She thought the bottle was funny.C) She thought the juice went bad.D) She couldn’t open the bottle.III. Listen to the passage and tell whether the following statements are true or false. 判断下列句子是否符合你听到的短文内容，符合的用“A”表示，不符合的用“B”（5%）6. Zuckerberg’s father taught him how to write computer programs.7. “ZuckNet” is a kin d of communication software program.8. Zuckerberg agreed to work for Microsoft in his high school years.9. Zuckerberg gave a speech in English in Tsinghua University in 2015.10. Zuckerberg promised to spend most of his money improving Facebook.IV. Listen to the passage and complete the following sentences. 听短文，完成下列内容，每空格限填一词。

详细解析：兰生复旦中学学年度第一学期期中测试

兰生复旦中学2017学年度初一第一学期期中考试分数：100+20 时间：90分钟Part One listening 30%(略)Part Two phonetics, grammar and vocabulary 35%II. Complete the sentences with the given verbs in their proper forms. (用动词的适当形式填空，每空格可填多词，共6分)>1. Not only my parents but I __________ where to go for a trip during the spring festival these days. (plan)2. In the past few years, earthquakes __________ thousands of buildings in this area. ( destroy)3. Every time fire happens, the ambulances and firemen are always the first _______ to the scene. ( rush)4. Toms mother was so happy to see him ___________ his own bedroom when she came back from work. ( tidy)5. He had a serious accident because he ___________ carelessly on his way home. (drive)…6. The customer-service manager told me that my parcel ________ for a second time the next day. (deliver)参考答案：1.am planningnot only...but (also)的谓语动词遵循就近原则，either...or,neither...nor也是。

2017-2018学年兰生复旦七(上)第一...

2017~2018学年兰生复旦七（上）第一阶段测试卷一、填空题：（2*14=28分）1. 下列代数式m ，x y -，4a -，21x +，1x a -，31ab π+，()a b c +，2xy x x -中多项式有____________.2. 多项式4223347634x y x y xy x y -+--按字母y 的升幂排列是________________________.3. 一机床原来每小时加工x 个零件，若每小时多加工y 个零件，则完成a 个零件可提前______小时完成.4. 代数式232243413222017xy x y x y y x +++--是____次____项式.5. 代数式()243113594x y xy x ----+的最高次项的系数是___________. 6. 若单项式845x a b +与42y a b -是同类项，则y x 的值是___________. 7. 当2x =时，代数式()()()()453563x x x x -+--+的值是___________.8. 若251x x --的3倍减去一个多项式得235x x +-，则这个多项式是___________. 9.()()543232345678234xx x x x x x x +-+-+---展开式中5x 的系数是___________.10. 计算()()()()3223223231533x yz x y z x y xyz yz ⎛⎫-+= ⎪⎝⎭___________.11. 已知223562200a ab b a b -+--+≤，则a ，b 的值分别为___________.12. 将1、2、3、4、、2020这2020个自然数，任意分成1010组，每组两个数，先将每组的两个数中任意一个记作a ，另一个数记作b ，代入代数式()11010a b a b -++中进行计算，求出结果，1010组数代入可求得1010个值，则这1010个值的和的最大值是___________. 13. 若2310a a -+=，则32263821a a a a -+++的值等于___________. 14. 满足312017n +≤，使得51n +是完全平方数的正整数n 共有___________.二、选择题（3分*4=12分）15. 下列各语句正确的有（）①两个五次多项式的和仍是五次多项式；②一个五次多项式和一个四次多项式和仍是一个五次多项式；③()2a b +和()23a b +是同类项；④()23a b +是同类项；④4m n m n x y +++（m 、n 是正整数且m n ≥）是一个m n +次的多项式；⑤()nnm m a a =，m 、n 为正整数（）.A. 0个B. 1个C. 3个D. 5个16. 受季节影响，某种商品每年按原售价降低10%后，又降价a 元，现在每件售价b 元，那么该商品每件的原售价为（）A.110%a b+-B. ()()110%a b -+C.110%b a--D. ()()110%a b --17. 已知a ，b ，c 都不等于0，且a b c ab bc ca abcx a b c ab bc ca abc=++---+，根据a ，b ，c 的不同取值，x 有几种不同的值（）.A. 唯一确定的值B. 2种不同的值C. 3种不同的值D. 4种不同的值 18. 已知0x ≠，1±，()()2320152342016M x x x x x x x x =++++++++，()()2320162342015N x x x x x x x x =++++++++，那么M ，N 的大小关系为（）.A. M N >B. M N <C. M N =D. 以上都不对三、计算（5分*4=20分）19. ⑴()20172017201620.51-⨯÷-⑵()()()()2221122a a a a a a -++-+-⑶()()()3232211223x yz x yz xyz xyz ⎛⎫--⋅--⋅- ⎪⎝⎭⑷222221111111111345910⎛⎫⎛⎫⎛⎫⎛⎫⎛⎫----- ⎪⎪⎪ ⎪⎪⎝⎭⎝⎭⎝⎭⎝⎭⎝⎭四、简答题（5分*2=10分）20. 化简：()()()()2322132n n n n n a a a a a a -+⎡⎤-⋅-⋅+⋅-+-⎢⎥⎣⎦（n 为大于2的正整数）.21. 已知113432326x x x x x +++⋅-⋅=，求x .五、解答题（6分*5=30分）22. 已知2510a a ++=，求多项式：54327141888a a a a a +++++的值.23. 已知22m n =+，22n m =+()m n ≠，求332m mn n -+的值.24. 已知()()()()()32282012817222x x a a x a x a x +-=+++++++，则1234567a a a a a a a -+-+-+的值为多少？25. 如图，在长方形ABCD 中，AB a =，BC b =（a b >），将长方形ABCD 绕点D 逆时针旋转90︒，点A ，B ，C 分别对应点E ，F ，G .⑴联结DB 、DF 、BF ，请用含有a ，b 的代数式表示DBF ∆的面积； ⑵如果BF 交DC 于点H ，请用含有a ，b 的代数式表示CH 的长.26. 求满足2222222212345678x x x x x x x x +++++++()122334455667788409x x x x x x x x x x x x x x x +-+++++++=的实数1x ，2x ，3x ，4x ，5x ，6x ，7x ，8x 的值.D。

五角场初中-兰生复旦中学2017学年度九年级第一学期第一阶段考试

兰生复旦中学2017学年度第一学期第一阶段考试（2017.9）Part 2 Phonetics, Grammar and Vocabulary 35%I. Choose the best answer 10%Which of the following underlined parts is different in pronunciation from the others?【A】we should think of a plot when creating a comic strip.【B】the fish are removed from the bird’s mouths by Damin.【C】yesterday a bank robbery happened at the end of the corner.【D】he was so shocked that he could hardly say a word.【答案】BWord came that several _________ soldiers were coming.【A】hundreds of enemy【B】hundreds enemies【C】hundred enemies【D】hundred enemy【答案】C--- which of the books is better?--- I have no idea, but you can take either of them and leave _____ with me.【A】one【B】another【C】the other【D】other one【答案】BUsing computers makes it ______ for us to do our daily work than before.【A】easy【B】easier【C】easily【D】more easily【答案】AHe was doing shopping at the supermarket ______ his mobile phone rang.【A】when【B】while【C】after【D】until【答案】AAll the buildings I have seen are excellent ______ their location.【A】except【B】besides【C】except for【D】but【答案】CIn front of the farmhouse _________.【A】lay a peasant boy【B】laid a peasant boy【C】a peasant lay【D】did a peasant boy lie【答案】D____________ already been interviewed.【A】A number of applicants have【B】A number of applicants has【C】The number of applicants have【D】The number of applicants has【答案】AA professor together with his two assistants ________ to help with the work recently.【A】were sent【B】has been sent【C】have been sent【D】was sent【答案】BWhat difficulty will you have _____ people when you stay in a foreign country?【A】understanding【B】understood【C】to understand【D】understand【答案】AII. Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need. 5%Yuanmingyuan, covering an area of more than 5200 mu, is one of the biggest ancient Chinese parks. The _____(1)______ began before 1707. The designers designed several hundred landscapes. At its most magnificent time, it contained three majoy parts, ___(2)____ countless scenic spots. It was also like a big art museum, because there were many famous books, paintings, works of calligraphy, sculptures and so on tin the park. They were ___(3)____ in it. It was the reflection of ancient Chinese civilization. In 1860, a terrible historical event happened, the British and French invaders set fire to Yuanmingyuan and the park was ruined completely! After the PRC was founded, the Chinese government decided to keep it as it was so that tourists could visit it and remember the history. It attracts millions of people. The scenery and the ruins together __(4)____ everyone’s desire to study and work harder to make our country stronger. Every year, on the thirdSaturday in September, everyone is __(5)___ for free.【答案】CDEAB本文主要介绍圆明园，从时间，建筑风格，组成部分等细节描写，也描述了圆明园如何毁坏，后续中华人民共和国建立圆明园成为重要的参观浏览之地，让人们勿忘之前的历史。

2016-2017学年上海市杨浦区兰生复旦中学八年级(上)期中物理试卷

如图，所示的光路图，入射光线与竖直成30度，s1s2长为10cm表示液面的高度（）A．上升10cm B．下降10cm C．上升8.7cm D．下降8.7cm6．如图所示，一平面镜放在圆筒的中心处，平面镜正对筒壁上一点光源S，点光源发出一细光束垂直射向平面镜。

平面镜从图示位置开始绕圆筒中心轴O匀速转动，在转动15°角时，点光源在镜中所成的像转过的角度θ1，照射到筒壁上的反射光斑转过的角度θ2，则（）A．θ1＝30°，θ2＝30°B．θ1＝30°，θ2＝60°C．θ1＝60°，θ2＝30°D．θ1＝60°，θ2＝60°7．如图所示是一张在湖边拍摄的照片。

因为湖水平静，岸上景物与湖中倒影在照片上十分相似。

青浦区复旦附中2017学年度第一学期期中考试试卷

2017学年复旦附中第一学期期中考试试卷初一年级数学（满分100 时间：90分钟）一、选择题：（本大题共6题，每题2分，满分12分）1.下列代数式a xy x x x ,4,1,2,3732--中单项式的个数是（） A.1个 B.2个 C.3个 D.4个2.下列运算正确的是( )A. 32)(aB.4223432y y =⎪⎭⎫ ⎝⎛- C.236a a a =÷ D.532a a a =⋅ 3.下列各式从左到右各式是因式分解的是（）A. 1)1)(1(2-=-+x x xB.6)5(652+-=+-x x x xC.22)1(12-=+-x x xD.)()(y x b y x a by bx ay ax +++=+++4.下列分式化简正确的是（） A. b a b a b a -=--3)(32 B.32322a a a a =- C.b a b ab a 31236142+=-- D.ba b a b a +=++122 5.数学老师上课出了一道因式分解的思考题，题意是1622++mx x 能在有理数的范围内因式分解，则整数m 的值有几个，小军和小华为此争论不休，请你判断整数m 的值有几个？（） A.4个 B.5个 C. 6个 D.8个6.从边长为a 的大正方形纸板中挖去一个边长为b 的小正方形后，将其裁成四个相同的等腰梯形（图甲），然后拼成一个平行四边形（图乙），那么通过计算两个图形的阴影部分的面积，可以验证成立的公式是（）A. 222)(b a b a -=-B.))((22b a b a b a +-=-C.2222)(b ab a b a +-=-D.b ab a b a ++=+2)(2二、填空题：（本大题共12题，每题3分，满分36分）7.“12减去y 的41的差”用代数式表示是： 8.将多项式153322---y y x xy 按字母y 升幂排列是： 9.使分式25-+x x 有意义的条件是： 10.计算：=÷-22332)453(y xy y 11.计算：=+--+-21212a a a a 12.若,3293211⨯=⨯⨯m 则=m13.如果,4,5==+ab b a 则=-b a14.要使)12)(3(22---x x x ax 的展开式中不含2x ，则=a 15.c b a ,,为三角形三边长，022=--+bc b ac a ，则该三角形的形状为16.现在规定一种运算ab b b a --=2*，期中ab 为有理数，=-m n m *)(17.李丽从家到学校的路程为S 米，无风时她以平均a 米/秒的速度骑行，便能按时到达；当风速为b 米/秒时，她若顶风按时到校，请用代数式表示她必须提前出发的时间是18.在图中取阴影等边三角形各边的中点,连成一个等边三角形,将其挖去,得到图;对图中的每个阴影等边三角形仿照先前的做法,得到图,如此继续.如果图的等边三角形面积为,则第个图形中所有阴影三角形面积的和为_________.三、简答题：（本大题共7小题，每小题4分，满分28分）19.计算：ax by axy b by ax 41)2(2)221(22÷⎥⎦⎤⎢⎣⎡-+- 20.计算：)52)(52(++-+-+z y x z y x21.解方程：2229)31)(13()12()3(4x x x x x +-+=+--22.因式分解：222222)53()35(n m n m +-+23.因式分解：72)(18)(222+---x x x x24.因式分解：ab b a 4)1)(1(22--- 25.先化简，再求值：11)1112(22+÷+-+-x x x x x ，期中.2-=x 四、解答题（本大题共5小题，第26-29题每题5分，第30题4分，满分24分）26.已知311=-y x ，求yxy x y xy x ---+2535的值。

上海兰生复旦化学上册期中试卷(带解析)

上海兰生复旦化学上册期中试卷(带解析)一、选择题（培优题较难）1．实验室用如图所示装置制取氧气，下列实验操作正确的是A．加热前，将集气瓶注满水，用玻璃片盖着倒立在盛水的水槽中B．先将导管口移入集气瓶，再开始加热C．收集O2后，将集气瓶移出水槽，然后盖上玻璃片D．停止加热时，先熄灭酒精灯，再移出导气管2．在一密闭的容器中，一定质量的碳粉与过量的氧气在点燃的条件下充分反应,容器内各相关量与时间(从反应开始计时)的对应关系正确的是( )A．B．C．D．3．下列加热高锰酸钾制取氧气的部分操作示意图中，正确的是A．检查装置气密性B．加热立即收集C．收满后移出集气瓶 D．结束时停止加热4．鉴别二氧化碳、氧气、空气三种气体，可选用的最佳方法是( )A．将气体分别通入水中B．将燃着的木条分别伸入气体中C．将带火星的木条分别伸入气体中D．将气体分别通入澄清石灰水中5．下列图示中的“错误实验操作”与图下面对应的“可能产生的后果”不一致的是（）A．液体喷出B．污染试剂C．酒精溅出D．读数偏大6．“” “”表示两种不同元素的原子，下图表示化合物的是A．B．C．D．7．下列事实不能作为相应观点的证据的是( )A．尘土飞扬，说明分子是运动的B．电解水得到氢气和氧气，说明分子是可分的C．气体被压缩后体积发生了较大变化，说明气体分子间距较大D．将两个干净平整的铅柱紧压在一起会结合起来，说明分子间存在引力8．在一个密闭容器中放入甲、乙、丙、丁四种物质，在一定条件下充分反应，测得反应前后各物质的质量如下表所示。

下列说法正确的是（）物质甲乙丙丁反应前质量/g100.3 4.8 2.8反应后质量/g 3.2待测8 6.4A．待测值为0.6B．此反应可表示为：丙+丁→甲C．反应中甲和丁变化的质量比为1：2D．甲一定是化合物9．下列古代文明或工艺一定包含化学变化的是A．在甲骨上刻文字B．指南针指引航海C．用泥土烧制陶瓷D．用石块修筑长城10．下图是某粒子的结构示意图，关于该粒子的说法正确的是A．质子数为10B．是一种阳离子C．属于金属元素D．已形成相对稳定的结构11．对以下四种粒子的结构示意图，分析错误的是A．①②属于同一种元素B．①④的化学性质相似C．①得到电子可形成③D．②③表示不同种离子12．集气瓶中装满某气体，可能是下列气体中的一种：①二氧化碳②氧气③空气④氮气将燃着的木条伸入瓶中，火焰立即熄灭，则该瓶气体可能是（）A．①或②B．②或③C．①或④D．③或④13．下列有关碳和碳的化合物说法错误的是（）A．金刚石、石墨、C60都是碳元素组成的单质B．在加热或高温的条件下，CO能与许多金属氧化物反应C．二氧化碳能使紫色石蕊溶液变红，说明二氧化碳具有酸性D．水墨画可长久保存不变色是因为在常温下碳的化学性质不活泼14．下列实验操作正确的是( )A．取少量固体B．塞紧橡皮塞C．称量固体D．点燃酒精灯15．化学实验是化学学习的重要方法。

上海市兰生复旦中学2017-2018学年八年级9月月考数学试题(含答案)

1、 x 32 3
2、 x 12 2 3 x 6 3 2 0
3、 a x2 a 1 x a 0
4
五、解答题（5 分+5 分+6 分+8 分=24 分）
1、设方程 x2 kx 7 0 和 x2 6x k 1 0 有公共根，试求 k 的值。
D、 a 0 bc
D、 a3b 2 a2b 3 2
3、若实数 m 满足 m 4 m 3 1 ，那么下列四个式子中与 m 4
3

1
mm

4
相等的是（）
A、 m 4 3 m
B、 m 4 3 m
C、 m 4 m3
D、 m 4 m3
4、关于 x 的一元二次方程 a 1 x2 a2 1 x a 1a2 1 0 的一个根是 0，则 a 的值是（）
A、 m 1
B、 m 1且m 0 C、 m 0 D、 m 1
三、计算（每题 4 分）
1、 1 3 3 6 8 2 +1
2、 4 21 2 1 3
3、 2x 18xy x2 2y 6xy x x 0
3
x
8y
四、解关于 x 的方程（每题 4 分）
（2）每件陈少降价多少元时，商场平均每天盈利最多？
4、已知关于 x 的方程：
a2
1

x 2 x 1
2a

7

x x 1
1
0
有两个实数根；
（1）求 a 的取值范围
（2）如果方程的两实根
x1,
x2
满足：
1 x1 1

兰生复旦中学2017学年度初三第一学期第一阶段考试

兰生复旦中学2017学年度第一学期第一阶段考试（2017.9）I. Choose the best answer.15.Which of the following underlined parts is different in pronunciation from the others?A、we should think of a plot when creating a comic strip.B、the fish are removed from the bird’s mouths by Damin.C、yesterday a bank robbery happened at the end of the corner.D、he was so shocked that he could hardly say a word.【答案】B16.Word came that several _________ soldiers were coming.A、hundreds of enemyB、hundreds enemiesC、hundred enemiesD、hundred enemy 【答案】C17.--- which of the books is better?--- I have no idea, but you can take either of them and leave _____ with me.A、oneB、anotherC、the otherD、other one【答案】Bing computers makes it ______ for us to do our daily work than before.A、easyB、easierC、easilyD、more easily【答案】A19.He was doing shopping at the supermarket ______ his mobile phone rang.A、whenB、whileC、afterD、until【答案】A20.All the buildings I have seen are excellent ______ their location.A、exceptB、besidesC、except forD、but【答案】C21.In front of the farmhouse _________.A、lay a peasant boyB、laid a peasant boyC、a peasant layD、did a peasant boy lie【答案】D22.____________ already been interviewed.A、A number of applicants haveB、A number of applicants hasC、The number of applicants haveD、The number of applicants has【答案】A23.A professor together with his two assistants ________ to help with the work recently.A、were sentB、has been sentC、have been sentD、was sent【答案】B24.What difficulty will you have _____ people when you stay in a foreign country?A、understandingB、understoodC、to understandD、understand【答案】AII. Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.Yuanmingyuan, covering an area of more than 5200 mu, is one of the biggest ancient Chinese parks. The _____(1)______ began before 1707. The designers designed several hundred landscapes. At its most magnificent time, it contained three majoy parts, ___(2)____ countless scenic spots. It was also like a big art museum, because there were many famous books, paintings, works of calligraphy, sculptures and so on tin the park. They were ___(3)____ in it. It was the reflection of ancient Chinese civilization. In 1860, a terrible historical event happened, the British and French invaders set fire to Yuanmingyuan and the park was ruined completely! After the PRC was founded, the Chinese government decided to keep it as it was so that tourists could visit it and remember the history. It attracts millions of people. The scenery and the ruins together __(4)____ everyone’s desire to study and work harder to make our country stronger. Every year, on the third Saturday in September, everyone is __(5)___ for free.【答案】CDEAB本文主要介绍圆明园，从时间，建筑风格，组成部分等细节描写，也描述了圆明园如何毁坏，后续中华人民共和国建立圆明园成为重要的参观浏览之地，让人们勿忘之前的历史。

上海民办兰生复旦中学初三化学上册期中化学试题(word版,含解析)

上海民办兰生复旦中学上册期中化学试题（word版,含解析）一、选择题（培优题较难）1．运用推理、归纳、类比、对比的方法得出下列结论，其中合理的是（）A．因为化学变化都遵循质量守恒定律，所以质量不发生改变的变化一定是化学变化B．水和过氧化氢的组成元素相同，则两者的化学性质相同C．Na+、Mg2+、Cl-的最外层电子数均为8，由此得出离子的最外层电子数均为8D．过氧化氢溶液加催化剂的反应速率快，说明催化剂可以改变反应速率2．四种物质在一定的条件下充分混合反应，测得反应前后各物质的质量分数如图所示．则有关说法中不正确的（）A．丁一定是化合物B．乙可能是这个反应的催化剂C．生成的甲、丙两物质的质量比为8: 1D．参加反应的丁的质量一定等于生成甲和丙的质量之和3．锌是促进人体生长发育的必须微量元素。

下图为锌元素在元素周期表中的相关信息及原子结构示意图。

下列说法正确的是（）A．锌属于非金属元素B．锌原子的中子数为30C．锌的相对原子质量为65.38g D．锌原子在化学反应中易失去电子形成Zn2+ 4．如图所示有关二氧化碳的实验中，只与二氧化碳物理性质有关的实验是（）A． B． C． D．5．下列实验操作正确的是A．塞紧橡皮塞B．加热液体C．取用液体D．读出液体的体积6．下列各图中和分别表示不同元素的原子，则其中表示化合物的是( ) A．B．C．D．7．碳12是指含6个中子的碳原子。

下列对氧16和氧18两种氧原子的说法正确的是A．质子数相同B．质量相同C．电子数不相同D．16和18表示原子个数8．以下是四种微粒的结构示意图，下列有关各微粒的说法中，错误的是A．①的化学性质比较稳定B．③④属于同种元素C．④是一种阴离子D．②容易得到电子9．下列古代文明或工艺一定包含化学变化的是A．在甲骨上刻文字B．指南针指引航海C．用泥土烧制陶瓷D．用石块修筑长城10．实验小组用如图装置测定空气中的氧气含量，锥形瓶中空气的体积为100mL，注射器中水的体积为25 mL，装置气密性良好。

2016-2017年上海市兰生复旦七上数学学科期中考试试卷

兰生复旦七年级上学期期中考试试卷（2016）一选择题（每小题2分，共20分） ( ) 1．下列各对数中，互为相反数的是:A.()2--和2B. ）（和3)3(+--+C.221-和 D. ()55----和 ( ) 2. 下列式子：0,5,,73,41,222x cabab a x -++中，整式的个数是: A. 6 B. 5 C. 4 D. 3 ( ) 3. 一个数的平方和它的倒数相等，则这个数是:A. 1B. －1C. ±1D. ±1和0 ( ) 4．下列计算正确的是:A. 4812-=--B. 945-=+-C. 1091-=--D. 932=-( ) 5. 数轴上点A,B,C,D 对应的有理数都是整数，若点A 对应有理数a ，点B 对应有理数b ，且b-2a=7,则数轴上原点应是:CA. A 点B. B 点C. C 点D. D 点 ( ) 6．若()b a b a 则,032122=-+-＝A.61 B. 21- C. 6 D. 81( ) 7．下列说法正确的是：A.0,<-=a a a 则若B. 0,0,0><<b ab a 则若 C 是七次三项式式子124332+-y x xy D. mbm a m b a ==是有理数，则若, ( ) 8．方程1-3y=7的解是：A. 21-=y B. 21=y C. 2-=y D.2=y( ) 9. 一个多项式加上,3332322y x x xy y x --得则这个多项式是：A. x 3+3xy 2B. x 3-3xy 2C. x 3-6x 2y+3xy 2D. x 3-6x 2y-3x 2y二填空（每小题2分，共20分）11．绝对值不小于1而小于3的整数的和为＿＿＿＿＿＿； 12．53-的倒数的绝对值是＿＿＿＿＿＿； 13．若a 、b 互为相反数，c 、d 互为倒数，则2a+3cd+2b=＿＿＿＿＿＿； 14．用科学记数法表示：2007应记为＿＿＿＿＿＿；15．单项式322yx -的系数是＿＿＿＿＿＿，次数是＿＿＿＿＿＿；16．=+--n m xy y x mn是同类项，则与若213213 ＿＿＿＿＿＿； 17．()的值是的解，则是方程若k x k x k x 5243=--+-=＿＿＿＿＿＿； 18．如果5x+3与－2x+9是互为相反数，则x －2的值是＿＿＿＿＿＿；19．每件a 元的上衣先提价10％，再打九折以后出售的价格是＿＿＿＿＿＿元/件； 20．观察下图并填下表三计算（每小题4分，共24分） 21） ()3032324-⨯⎪⎭⎫⎝⎛--÷- 22） ()()13181420----+-23) ()313248522⨯-÷+-+- 24 ) ()⎪⎭⎫ ⎝⎛-⨯÷--÷⎪⎭⎫ ⎝⎛-41855.257512525）mn n m mn mn n m 36245222++-+- 26） )32(3)32(2a b b a ---四. 解答题（每小题6分，共18分）27．先化简，再求值：⎥⎦⎤⎢⎣⎡+⎪⎭⎫ ⎝⎛+--224231325x xy xy x 。

上海市复旦大学附属中学2017-2018学年高三上学期期中考试英语试题 Word版含答案

复旦大学附属中学2017-2018学年第一学期高三年级英语期中考试试卷第I卷（共103分）I. Listening ComprehensionSection ADirections: In Section A, you will hear ten short conversations between two speakers. At the end of each conversation, a question will be asked about what was said. The conversation and the question will be spoken only once. After you hear a conversation and the question about it, read the four possible answers on your paper, and decide which one is the best answer to the question you have heard.1. A. This afternoon. B. Tomorrow. C. Next week. D. Next month.2. A. She doesn‟t play tennis well. B. She likes other sports as well.C. She is an enthusiastic tennis player.D. She is a professional athlete.3. A. At a paint store. B. At an oil market.C. At a science museum.D. At a gallery.4. A. Work in the yard. B. Buy some wood.C. Go to the bookstore.D. Take a walk.5. A. A taxi driver. B. A passenger. C. A car cleaner. D. A mechanic.6. A. Call a repairman. B. Get out the paper stuck.C. Turn to her colleague for help.D. Restart the machine.7. A. There are not enough gardens. B. Parking areas are full before 10:00.C. Parking areas are closed after 10:00.D. All classes begin at 10:00.8. A. The presentation will begin at noon.B. She‟ll present her work to the man.C. She‟d like to invite the man for lunch.D. She suggests working on the presentation at 12:00.9. A. The dormitory hours. B. The problem with the rules.C. The door number of the dormitory.D. The time to open the dormitory.10. A. The chairs didn‟t need to be painted.B. He doesn‟t like the color of the chairs.C. The park could have avoided the problem.D. The woman should have been more careful.Section BDirections: In section B, you will hear two short passages, and you will be asked three questions on each of the passages. The passages will be read twice, but the questions will be spoken only once. When you hear a question, read the four possible answers on your paper and decide which one would be the best answer to the question you have heard.Questions 11 through 13 are based on the following passage.11. A. Worried B. Surprised. C. Satisfied. D. Uninterested.12. A. It spoiled Juana‟s reputation. B. It copied her ideas without permission.C. It bought Juana‟s dishwashers.D. It wanted to share the dishwasher market.13. A. A successful business case. B. Juana‟s waterless laundry.C. A case against a global company.D. The worldwide dishwasher market.Questions 14 through 16 are based on the following passage.14. A. Footprints. B. Food. C. Living insects. D. Orange seeds.15. A. Don‟t touch animals under any circumstances.B. Don‟t take away any natural objects from the park.C. Don‟t leave litter in the park or throw any off the boat.D. Don‟t transport animals from one island to another.16. A. To protect the guide‟s interest. B. To improve the unique environment.C. To ensure a trouble-free visit.D. To get rid of illegal behaviors.Section CDirections: In section C, you will hear two longer conversations. The conversations will be read twice. After you hear each conversation, you are required to fill in the numbered blanks with the information you have heard. (本题做在答题纸上)Write onlyII. Grammar and VocabularySection ADirections: After reading the passages below, fill in the blanks to make the passages coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.(A)Libraries are my world. I've been a patron all my life, and for the past nine years I (25) ______ (work) at multiple libraries and archives in and around Detroit. The library (26) ______ an institution has many roles, but as our country struggles through an economic crisis, I have watched the library where I work evolve into a career and business center, a community gathering place and a bastion for hope.In the spring of 2007 I got a library internship at the Southfield Public Library, just north of Detroit. Summers at SPL (27) ______ (be) usually slow, but that year, we experienced a library that hustled and bustled like science-fair project week, midterms or tax season. Yet patrons weren't looking for Mosby's Nursing Drug Reference or 1040 forms. They were coming for information on entrepreneurship and growing their small business.I interpreted people's interest in our business collection as the first step to (28) ______ (pursue) their dreams, but these patrons were not motivated by dreams. They were responding to reality, and they were looking for Plan B.Things worsened in 2008, and in 2009 the economic crisis continues to suffocate Michigan. Last year, we put up a display with a variety of job resources that we restocked every hour. Each night the library closed, the display was bare. (29) ______ we normally keep displays up for a week, we kept the job resources display up for months.Then there's the tightening credit market. People see the writing on the wall and they want to get educated. They can't afford a financial adviser, but checking books out is free. Some of (30) ______(popular) titles now are "Rich Dad, Poor Dad," "Think and Grow Rich," and "Suze Orman's 2009 Action Plan."The economic downturn affects us all. I have had to work long hours and don't get to see (31) ______ of my boyfriend or experience any kind of social life lately, but I am thankful to be in a position where I can help people overcome this struggle. In Michigan, we haven't lost hope. (32) ______ ______ ______ there are libraries here, there will always be hope.(B)It‟s estimated that 300 million people in China are studying, or (33) ______ (study), English. That‟s an impressive number and I can‟t think of any other country in the world where one quarter of the population is so dedicated to (34) ______ (learn) a second language. But some people are questioning whether this “craze” for studying English is worthwhile.Professor Zhang Shuhua of the Chinese Academy of Social Sciences says that too much emphasis is placed on learning English and that it is a waste of education resources as well as a threat to the study of Chinese. He says that having English as a compulsory course in university “has distracted much of students‟attention (35) ______ specialized subjects,”and that some students have been denied access to postgraduate education because they failed English. Others have admitted that studying so much English has made them (36) ______ (poor) Chinese speakers.Both of these criticisms are legitimate, but they beg the question of why so many Chinese still want to learn English. English, (37) ______ recognize, is the lingua franca of the modern world. It is the language of business and has become the language of international relations and culture. When people from different countries get together, they frequently speak in English rather than try to translate their native languages. It seems that everyone everywhere can speak at least some English.For China to be part of that international conversation, it is necessary that some level ofEnglish proficiency (38) ______ be achieved. But what, you may ask, about those who will never speak a word of English once they leave school? Well, for good or ill, they will still be surrounded by English. It is there in signs, in music, in movies and in the casual conversations they overhear of the increasing number of foreigners on the city streets. To know English is to be included in the rest of the world, (39) ______ ______ your world is limited to China.I agree with Professor Zhang on one point, (40) ______. English should not be a compulsory subject in university. For most, passing the CET is just the endless drudgery of memorizing word lists. There is little emphasis placed on communication. And if you can‟t communicate in English after years of study in primary school, middle school and high school, a few more years in university probably won‟t help.Section BDirections: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.For writers in Western cultures, autumn is a difficult season to describe. On the one hand, it is the end of the summer, and therefore a little sad. The nights draw in, and when you wake in the morning, there‟s mist and it‟s co oler: Winter is around the ___41___. American writer Ernest Hemingway wrote in his book A Moveable Feast: “You expected to be sad in the fall. Part of you died each year when the leaves fell from the trees and their branches were ___42___against the wind a nd the cold, wintry light.”On the other hand, autumn has its good side. There are so many changes in nature at this time of year, such as the reds and browns that the leaves change to, and the ___43___ they fall from the trees. French writer Albert Camus even though autumn was a second spring: “Autumn is a second spring when every leaf is a flower.” It‟s a view you can also find in the most famous autumn poem in English literature, To Autumn by John Keats. In that poem Keats says that the autumn has its own songs, just like spring.Another autumn theme is wisdom. The arrival of the season is thought to be similar to a person becoming ___44___. Their summer peak may have been and gone, but old age has not yet come. At this time it‟s thought that people have ___45___ a thing or two about life. The great Irish poet W.B. Yeats takes up this theme in his poem The Wild Swans at Coole. Yeats puts together a picture for the reader out of the ___46___ of the changing seasons in Coole Park in the west of Ireland, a place he knew well. Seeing and counting 59 swans, he remembers first making the count 19 years ago. He ___47___ whether he can still love like the lover swans do.Of course, many other themes and subject matters can play a part in the literature of autumn. For example, it‟s the beginning of a new term of the school year. As you would expect, autumncan___48___ in writing for children and young people. But autumn writing usually ___49___ on the changes in nature that we see, which writers often use as a ___50___ for changes in human life.III. Reading ComprehensionSection ADirections: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.After the college-board examinations in June, Basil Duke Lee and five other boys from St. Regis School ___51___ the train for the West. Two got out at Pittsburgh, one slanted south toward St. Louis and two stayed in Chicago; from then on Basil was alone. It was the first time in his life that he had ever felt the need of tranquility, but now he took long breaths of it; for, though things had gone better toward the end, he had had a / an ___52___ year at school.He wore one of those extremely flat derbies (常礼帽) in vogue during the twelfth year of the century, and a blue business suit became a little too short for his constantly ___53___ body. Within he was by turns a disembodied (空洞的) spirit, almost ___54___ of his person and moving in a mist of impressions and emotions, and a fiercely competitive individual trying ___55___ to control the rush of events that were the steps in his own ___56___ from child to man. He believed that everything was a matter of ___57___ — the current principle of American education — and his fantastic ___58___ was continually leading him to expect too much. He wanted to be a great athlete, popular, brilliant and always happy. During this year at school, where he had been punished for his “freshness,” for fifteen years of thorough spoiling at hom e, he had grown uselessly introspective, and this ___59___ with that observation of others which is the beginning of wisdom. It was apparent that before he obtained much success in dealing with the world he would know that he‟d been in a fight.Fifteen is of all ages the most difficult to ___60___———to put one‟s fingers on and say, “That‟s the way I was.” And all one can know is that somewhere between thirteen, boyhood‟s___61___, and seventeen, when one is a sort of counterfeit young man, there is a time when youth ___62___ hourly between one world and another —— pushed ceaselessly forward into unprecedented experiences and ___63___ trying to struggle back to the days when nothing had to be ___64___ for. Fortunately none of our contemporaries remember much more than we do of how we behaved in those days; nevertheless the ___65___ is about to be drawn aside for an inspection of Basil‟s madness that summer.51. A. boarded B. missed C. jumped D.followed52. A. happy B. unhappy C.memorableD.favourable53. A. swelling B. bending C. lengthening D.strengthening54. A. aware B.fond C. critical D.unconscious55. A. randomly B. desperately C. particularly D.indifferently56. A. evolution B. revolution C. solutionD.introduction57. A. fact B. opinion C. course D. effort58. A. fashion B. ambition C. character D.treasure59. A. contacted B. associated C. interfered D.smashed60. A. digest B.describe C. deal D. locate61. A. majority B. minority C. senior D. junior62. A. floats B. varies C. fluctuates D. ranges63. A. successfully B. vainly C. wildly D. gently64. A. hunted B. provided C. compensated D. paid65. A.curtain B. adolescence C. portrait D. ceilingSection BDirections: Read the following three passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C and D. Choose the one that fits best according to the information given in the passage you have just read.(A)There are people in Italy who can‟t stand soccer. Not all Canadians love hockey. A similar situation exists in America, where there are those individuals you may be one of them who yawn or even frown when somebody mentions baseball. Baseball to them means boring hours watching grown men in funny tight outfits standing around in a field staring away while very little of an ything happens. They tell you it‟s a game better suited to the 19th century, slow, quiet, gentlemanly. These are the same people you may be one of them who love football because there‟s the sport that glorifies “the hit”.By contrast, baseball seems abstract, cool, silent, still.On TV the game is fractured into a dozen perspectives, replays, close ups. The geometry of the game, however, is essential to understanding it. You will contemplate the game from one point as a painter does his subject; you may, of course, project yourself into the game. It is in this projection that the game affords so much space and time for involvement. The TV won‟t do it for you.Take, for example, the third baseman. You sit behind the third base dugout and you watch him watching home plate. His legs are apart, knees flexed. His arms hang loose. He does a lot of this. The skeptic still cannot think of any other sports so still, so passive. But watch what happens every time the pitcher throws: the third baseman goes up on his toes, flexes his arms or brings the glove to a point in front of him, takes a step right or left, backward or forward, perhaps he glances across the field to check his first baseman‟s position. Suppose the pitch is a ball. “Nothing happened,” you say. “I could have had my eyes closed.”The skeptic and the innocent must play the game. And this involvement in the stands is no more intellectual than listening to music is. Watch the third baseman. Smooth the dirt in front of you with one foot; smooth the pocket in your glove; watch the eyes of the batter, the speed of the bat, the sound of horsehide on wood. If football is a symphony of movement and theatre, baseball is chamber music, a spacious interlocking of notes, chores and responses.66. Those who don‟t like baseball may complain that ______.A. it is only to the taste of the oldB. it involves fewer players than footballC. it is not exciting enoughD. it is pretentious and looks funny67. The author admits that ______.A. baseball is too peaceful for the youngB. baseball may seem boring when watched on TVC. football is more attracting than baseballD. baseball is more interesting than football68. By stating …I could have had my eyes closed.‟ the author means (4th paragraph last sentence):A. The third baseman would rather sleep than play the game.B. Even if the third baseman closed his eyes a moment ago, it could make no difference to theresult.C. The third baseman is so good at baseball that he could finish the game with eyes closed allthe time and do his work well.D. The consequence was too bad he could not bear to see it.69. We can safely conclude that the author ______.A. likes footballB. hates footballC. hates baseballD. likes baseball(B)Some of the world‟s most signifi cant problems never hit headlines. One example comes from agriculture. Food riots and hunger make news. But the trend lying behind these matters is rarely talked about. This is the decline in the growth in yields of some of the world‟s major crops. A new study by the University of Minnesota and McGill University in Montreal looks at where, and how far, this decline is occurring.The authors take a vast number of data points for the four most important crops: rice, wheat corn and soybeans. They find that on between 24% and 39% of all harvested areas, the improvement in yields that took place before the 1980s slowed down in the 1990s and 2000s.There are two worrying features of the slowdown. One is that it has been particularly sharp in the world‟s most p opulous countries, India and China. Their ability to feed themselves has been an important source of relative stability both within the countries and on world food markets. That self-sufficiency cannot be taken for granted if yields continue to slow down or reverse.Second, yield growth has been lower in wheat and rice than in corn and soya beans. This is problematic because wheat and rice are more important as foods, accounting for around half of all calories consumed. Corn and soybeans are more important as feed grains. The authors note that “we have preferentially focused our crop improvement efforts on feeding animals and cars rather than on crops that feed people and are the basis of food security in much of the world.”The report qualifies the more optimistic findings of another new paper which suggests that the world will not have to dig up a lot more land for farming in order to feed 9 billion people in 2050, as the Food and Agriculture Organization has argued.Instead, it says, thanks to slowing population growth, land currently ploughed up for crops might be able to revert to forest or wilderness. This could happen. The trouble is that the forecast assumes continued improvements in yields, which may not actually happen.70. What does the author try to draw attention to?A. Food riots and hunger in the world.B. News headlines in the leading media.C. The decline of the grain yield growth.D. The food supply in populous countries.71. Why does the author mention India and China in particular?A. Their self-sufficiency is vital to the stability of world food markets.B. Their food yields have begun to decrease sharply in recent years.C. Their big populations are causing worldwide concerns.D. Their food self-sufficiency has been taken for granted.72. What does the new study by the two universities say about recent crop improvement efforts?A. They fail to produce the same remarkable results as before the 1980s.B. They contribute a lot to the improvement of human food production.C. They play a major role in guaranteeing the food security of the world.D. They focus more on the increase of animal feed than human food grains.73. What does the Food and Agriculture Organization say about world food production in the coming decades?A. The growing population will greatly increase the pressure on world food supplies.B. The optimistic prediction about food production should be viewed with caution.C. The slowdown of the growth in yields of major food crops will be reversed.D. The world will be able to feed its population without increasing farmland.(C)Among the more colorful characters of Leadville‟s golden age were H.A.W. Tabor and his second wife, Elizabeth McCourt, better known as “Baby Doe”. Their history is fast becoming one of the legends of the Old West. Horace Austin Warner Tabor was a school teacher in Vermont. With his first wife and two children he left Vermont by covered wagon in 1855 to homestead in Kansas. Perhaps he did not find farming to his liking, or perhaps he was tempted by rumors of fortunes to be made in Colorado mines. At any rate, a few years later he moved west to the small Colorado mining camp known as California Gulch, which he later renamed Leadville when he became its leading citizen. “Great deposits of lead are sure to be found here.” he said.As it turned out, it was silver, not lead, that was to make Leadville‟s fortune and wealth. Tabor knew little about mining himself, so he opened a general store, which sold everything from boots to salt, flour, and tobacco. It was his custom to “grubstake” prospective miners, in other words, to supply them with food and supplies, or “grub”, while they looked for ore, in return for which he would get a share in the mine if one was discovered. He did this for a number of years, but no one that he aided ever found anything of value.Finally one day in the year 1878, so the story goes, two miners came in and asked for “grub”. Tabor had decided to quit supplying it because he had lost too much money that way. These werepersistent, howe ver, and Tabor was too busy to argue with them. “Oh help yourself. One more time won‟t make any difference,” He said and went on selling shoes and hats to other customers.The two miners took $17 worth of supplies, in return for which they gave Tabor a one-third interest in their findings. They picked a barren place on the mountain side and began to dig. After nine days they struck a rich vein of silver. Tabor bought the shares of the other two men, and sothe mine belonged to him alone. This mine, known as the “Pittsburgh Mine,” made 1 300 000 for Tabor in return for his $17 investment.Later Tabor bought the Matchless Mine on another barren hillside just outside the town for $117 000. This turned out to be even more fabulous than the Pittsburgh, yielding $35 000 worth of silver per day at one time. Leadville grew. Tabor became its first mayor, and later became lieutenant governor of the state.74. Leadville got its name for the following reasons EXCEPT ______.A. because Tabor became its leading citizenB. because great deposits of lead is expected to be found thereC. because it could bring good fortune to TaborD. because Tabor renamed it so75. The word “grubstake” in paragraph 2 means ______.A. to supply miners with food and suppliesB. to open a general storeC. to do one‟s contribution to the development of the mineD. to supply miners with food and supplies and in return get a share in the mine, if one wasdiscovered76. Tabor made his first fortune ______.A. by supplying two prospective miners and getting in return a one-third interest in the findingsB. because he was persuaded by the two miners to quit supplyingC. by buying the shares of the otherD. as a land speculator77. The underlying reason for Tabor‟s life career is ______.A. purely accidentalB.based on the analysis of miner‟s being very poor and their possibility of discoveringprofitable mining siteC. through the help from his second wifeD. he planned well and accomplished targets step by stepSection CDirections: Read the passage carefully. Then answer the questions or complete the statements inthe fewest possible words.When the Internet powerhouse Yahoo wanted to teach ethics to its employees, it faced a challenge familiar to multinational companies.Yahoo employs nearly 14,000 people at 25 sites worldwide. They would feel bored at sitting down in front of a dated video in which actors with 1980s haircuts tell them what to do. So it hired a company called The Network to design a game. In the game, the truck where Yahoo wasfounded traveled the world, turning into a boat and a helicopter along the way as it visited some of Yahoo's foreign offices. Participants play in game show-like scenarios that quiz them about conflicts of interest and doing business fairly. And employees note: Yahoo is tracking how well they do.Such activities draw more enthusiastic participation and teach more effectively than traditional methods. They are described as alternative-reality games (ARGs), involving both interactive and real-world elements. Besides teaching employees, ARGs have also been used in many areas for a number of different purposes.From a marketing perspective, a number of very successful ARGs have been written as a way to build product awareness. A very popular ARG called I Love Bees was produced to market the 2004 video game Halo 2. At its height, I Love Bees received between two to three million unique visitors over the course of three months.ARGs are more than just a fun way to learn. They have also been used to solve real world problems. An ARG called World Without Oil was created to obtain collective input from players about dealing with the world's dependency on oil. World without Oil simulates the first 32 days of a global oil crisis and anybody could play by creating a personal story that recorded the imagined reality of their life in the crisis. World Without Oil's success on a small budget has opened the door for similar games to engage mainstream Internet users with climate change, education reform, governmental policy and other timely, vital issues.(Note: Answer the questions or complete the statements in NO MORE THAN TEN WORDS.)78.What challenge did yahoo face in teaching ethics to its employees?79.In the game designed for yahoo, participants had to answer questions about ________.80.What are the three major functions of ARG mentioned in the passage?81.The success of World Without Oil suggests that ARGs can ________.第II卷（共47分）I. TranslationDirections: Translate the following sentences into English, using the words given in the brackets.1.没有人不希望和平。

上海市民办兰生复旦中学七年级上学期期中考试数学试题及答案

七年级上学期期中考试试卷一、选择题（每小题2分，共20分）1．下列各对数中，互为相反数的是：( )A 、()2--和2B 、）（和3)3(+--+ C 、221-和 D 、()55----和 2. 下列式子：0,5,,73,41,222x cabab a x -++中，整式的个数是：( ) A 、6 B 、5 C 、4 D 、33. 一个数的平方和它的倒数相等，则这个数是：( )A 、1B 、1-C 、1±D 、1±和04．下列计算正确的是：( )A 、4812-=--B 、945-=+-C 、1091-=--D 、932=-5. 数轴上点A ，B ，C ，D 对应的有理数都是整数，若点A 对应有理数a ，点B 对应有理数b ，且72=-a b ，则数轴上原点应是：( )CA 、A 点B 、B 点C 、C 点D 、D 点6．若()ba b a 则,032122=-+-＝( )A 、61B 、21- C 、6 D 、817．下列说法正确的是：( )A 、若a a -=，则0<aB 、若0,0<<ab a ，则0>bC 、式子124332+-y x xy 是七次三项式D 、若b a =，m 是有理数，则mbm a = 8．方程731=-y 的解是：( )A 、21-=y B 、21=y C 、2-=y D 、2=y9. 一个多项式加上2233xy y x -得y x x 233-，则这个多项式是：( )A 、233xy x +B 、233xy x -C 、22336xy y x x +-D 、22336xy y x x --二、填空（每小题2分，共20分）11．绝对值不小于1而小于3的整数的和为＿＿＿＿＿＿；12．35-的倒数的绝对值是＿＿＿＿＿＿； 13．若a 、b 互为相反数，c 、d 互为倒数，则=++b cd a 232＿＿＿＿＿＿； 14．用科学记数法表示：2007应记为＿＿＿＿＿＿；15．单项式322yx -的系数是＿＿＿＿＿＿，次数是＿＿＿＿＿＿；16．=+--n m xy y x mn是同类项，则与若213213 ＿＿＿＿＿＿； 17．若3-=x 是方程()524=--+x k x k 的解，则k 的值是＿＿＿＿＿＿； 18．如果35+x 与92+-x 是互为相反数，则2-x 的值是＿＿＿＿＿＿；19．每件a 元的上衣先提价%1020．观察右图并填下表三、计算（每小题4分，共24分） 21．()3032324-⨯⎪⎭⎫⎝⎛--÷- 22．()()13181420----+- 23．()313248522⨯-÷+-+- 24．()⎪⎭⎫ ⎝⎛-⨯÷--÷⎪⎭⎫ ⎝⎛-41855.257512525．mn n m mn mn n m 36245222++-+- 26．)32(3)32(2a b b a --- 四、解答题（每小题6分，共18分）27．先化简，再求值：⎥⎦⎤⎢⎣⎡+⎪⎭⎫ ⎝⎛+--224231325x xy xy x 。

6t_2017学年兰生复旦中学七年级期中考试模拟卷(学生版)

2017学年兰生复旦中学七年级期中考试模拟卷1.在实数、、、、3.14、中,无理数共有( )2. 若,则3. 数的精确度通常有两种表达方式：一种是精确到哪一个数位,另一种指定保留几个有效数字.“神舟六号”飞船在太空中飞行的速度达到7.820185千米/秒,请你按要求取这个数的近似数.保留四个有效数字( )4. 用分数指数幂表示下式（a＞0，b＞0）.5. 化简后值为．6. 已知的小数部分为a,的小数部分为b,则7. 已知x= a+b√M是M的立方根，y= 3√b-6是x的相反数，且M=3a-7，那么x的平8. 若平行直线AB、CD与直线EF、GH相交成如图示的图形，则共得同旁内角( )9. 若∠α=50°，且∠β的两边与∠α的两边互相平行，则∠β=（）。

10. 如图，将长方形ABCD沿折线EF折叠后点B恰好落在CD边上的点H处，且∠CHE＝35°，则∠EFB＝.11. 如图，有下列六种说法：①∠l与∠4是内错角；②∠l与∠2是同位角；③∠2与∠4是内错角；④∠4与∠5是同旁内角；⑤∠2与∠4是同位角；⑥∠2与∠5是内错角.其中正确的个数是( )12. 比较大小：。

（填“”、“”或“”号）13. 若表示不超过x的最大整数(如等),则14. 满足方程所有实数解为。

15. 如图，将三角板与直尺贴在一起，使三角板的直角顶点C（∠ACB=90°）在直尺的一边上，若∠1=28°，则∠2的度数等于16. 已知不等式3x－a≤0的正整数解只有1、2、3，则a的取值范围为.17. 在,,这1000个二次根式中,与是同类根式的共有( )个?二．18. 下列说法中不正确的是（）A.同位角相等，两直线平行B.两直线平行，内错角相等C.内错角相等，两直线平行D.两直线被第三条直线所截，同旁内角互补19．下列说法：①无理数是实数；②有理数与无理数的和、差、积、商都是无理数；③一个实数不是正数就是负数；④无限小数是无理数。

上海市复旦大学附中2016-2017学年高一上学期期中考试数学试卷(解析版)

word格式-可编辑-感谢下载支持2016-2017学年上海市复旦大学附中高一（上）期中数学试卷一.填空题1．集合{1，2，3，…，2015，2016}的子集个数为．2．已知全集U=R，集合A={x|x≤1}，集合B={x|x≥2}，则∁U（A∪B）=．3．已知集合A={x|1≤x≤2}，集合B={x|x≤a}，若A∩B≠∅，则实数a的取值范围是．4．己知集合U={a，b，c，d，e，f}，集合A={a，b，c，d}，A∩B={b}，∁U（A∪B）={f}，则集合B=．5．已知a2＞a1＞0，b2＞b1＞0，且a1+a2=b1+b2=1，记A=a1b1+a2b2，B=a1b2+a2b1，C=，则按A、B、C从小到大的顺序排列是．6．已知Rt△ABC的周长为定值2，则它的面积最大值为．7．我们将b﹣a称为集合M={x|a≤x≤b}的“长度”，若集合M={x|m≤x≤m+}，N={x|n﹣0.5≤x≤n}，且集合M和集合N都是集合{x|0≤x≤1}的子集，则集合M∩N的“长度”的最小值是．8．已知A={x|＞x}，B={x|x（x﹣3）（x+3）＞0}，则A∩B=．9．对于任意集合X与Y，定义：①X﹣Y={x|x∈X且x∉Y}，②X△Y=（X﹣Y）∪（Y﹣X），已知A={y|y=x2，x∈R}，B={y|﹣2≤y≤2}，则A△B=．10．已知常数a是正整数，集合A={x||x﹣a|＜a+，x∈Z}，B={x||x|＜2a，x∈Z}，则集合A∪B中所有元素之和为．11．非空集合G关于运算⊕满足：（1）对任意a，b∈G，都有a+b∈G；（2）存在e∈G使得对于一切a∈G都有a⊕e=e⊕a=a，则称G是关于运算⊕的融洽集，现有下列集合与运算：①G是非负整数集，⊕：实数的加法；②G是偶数集，⊕：实数的乘法；③G是所有二次三项式构成的集合，⊕：多项式的乘法；④G={x|x=a+b，a，b∈Q}，⊕：实数的乘法；其中属于融洽集的是（请填写编号）12．集合A={（x，y）|y=a|x|，x∈R}，B={（x，y）|y=x+a，x∈R}，已知集合A∩B中有且仅有一个元素，则常数a的取值范围是．二.选择题13．已知集合A={1，2，3，…，2105，2016}，集合B={x|x=3k+1，k∈Z}，则A∩B中的最大元素是（）A．2014 B．2015C．2016 D．以上答案都不对14．已知全集U=A∪B中有m个元素，（∁U A）∪（∁U B）中有n个元素．若A∩B非空，则A∩B的元素个数为（）A．mn B．m+n C．n﹣m D．m﹣n15．命题“已知x，y∈R，如果x2+y2=0，那么x=0且y=0”的逆否命题是（）A．已知x，y∈R，如果x2+y2≠0，那么x≠0且y≠0B．已知x，y∈R，如果x2+y2≠0，那么x≠0或y≠0C．已知x，y∈R，如果x≠0或y≠0，那么x2+y2≠0word格式-可编辑-感谢下载支持D．已知x，y∈R，如果x≠0且y≠0，那么x2+y2≠016．对任意实数a，b，c，给出下列命题：①“a=b”是“ac=bc”的充要条件；②“a+5是无理数”是“a是无理数”的充要条件；③“a＞b”是“a2＞b2”的充分条件；④“a＜4”是“a＜3”的必要条件；其中真命题的个数是（）A．1个B．2个C．3个D．4个三.解答题17．已知集合A={1，2，3}，B={x|x2﹣（a+1）x+a=0，x∈R}，若A∪B=A，求实数a．18．已知a，b，c∈R+，求证：2（a3+b3+c3）≥ab2+a2b+bc2+b2c+ac2+a2c．19．设正有理数a1是的一个近似值，令a2=1+，求证：（1）介于a1与a2之间；（2）a2比a1更接近于．20．已知对任意实数x，不等式mx2﹣（3﹣m）x+1＞0成立或不等式mx＞0成立，求实数m的取值范围．21．已知关于x的不等式（4kx﹣k2﹣12k﹣9）（2x﹣11）＞0，其中k∈R；（1）试求不等式的解集A；（2）对于不等式的解集A，记B=A∩Z（其中Z为整数集），若集合B为有限集，求实数k的取值范围，使得集合B中元素个数最少，并用列举法表示集合B．2016-2017学年上海市复旦大学附中高一（上）期中数学试卷参考答案与试题解析一.填空题1．（2016秋•杨浦区校级期中）集合{1，2，3，…，2015，2016}的子集个数为22016．【考点】子集与真子集．【专题】集合思想；集合．【分析】对于有限集合，我们有以下结论：若一个集合中有n个元素，则它有2n个子集．【解答】解：∵集合{1，2，3，…，2015，2016}中有2016个元素，∴集合M{1，2，3，…，2015，2016}的子集的个数为22016；故答案为：22016．【点评】本题考查了集合的子集个数，若一个集合中有n个元素，则它有2n个子集，有（2n﹣1）个真子集，属于基础题．2．（2016秋•杨浦区校级期中）已知全集U=R，集合A={x|x≤1}，集合B={x|x≥2}，则∁U（A∪B）= {x|1＜x＜2} ．【考点】交、并、补集的混合运算．【专题】集合思想；定义法；集合．【分析】根据并集与补集的定义，进行计算即可．【解答】解：全集U=R，集合A={x|x≤1}，集合B={x|x≥2}，所以A∪B={x|x≤1或x≥2}，所以∁U（A∪B）={x|1＜x＜2}．故答案为：{x|1＜x＜2}．【点评】本题考查了并集与补集的定义与应用问题，是基础题目．3．（2016秋•杨浦区校级期中）已知集合A={x|1≤x≤2}，集合B={x|x≤a}，若A∩B≠∅，则实数a的取值范围是[1，+∞）．【考点】交集及其运算．【专题】计算题；集合思想；定义法；集合．【分析】题中条件：“A∩B≠∅，”表示两个集合的交集的结果不是空集，即可求解实数a的取值范围．【解答】解：集合A={x|1≤x≤2}，集合B={x|x≤a}，因为A∩B≠∅，所以a≥1故答案为：[1，+∞）【点评】本题考查集合的关系、一元二次不等式的解法，考查运算能力，是基础题．4．（2016秋•杨浦区校级期中）己知集合U={a，b，c，d，e，f}，集合A={a，b，c，d}，A∩B={b}，∁U（A∪B）={f}，求集合B．【考点】交、并、补集的混合运算．【专题】集合思想；综合法；集合．【分析】根据全集U，以及A与B并集的补集确定出A与B的并集，再根据A与B的交集及A，确定出B即可．【解答】解：∵U={a，b，c，d，e，f}，∁U（A∪B）={f}，∴A∪B={a，b，c，d，e}，∵A∩B={b}；A={a，b，c，d}，∴b∈B，e∈B，b∉B，c∉B，d∉B，∴B={b，e}．【点评】此题考查了交、并、补集的混合运算，熟练掌握各自的定义是解本题的关键．5．（2016秋•杨浦区校级期中）已知a2＞a1＞0，b2＞b1＞0，且a1+a2=b1+b2=1，记A=a1b1+a2b2，B=a1b2+a2b1，C=，则按A、B、C从小到大的顺序排列是B＜C＜A．【考点】不等式比较大小．【专题】计算题；转化思想；转化法；不等式．【分析】不妨令a1=，a2=，b1=，b2=，分别求出A，B，比较即可【解答】解：∵a2＞a1＞0，b2＞b1＞0，且a1+a2=b1+b2=1，不妨令a1=，a2=，b1=，b2=，A=a1b1+a2b2=+=，B=a1b2+a2b1=+=，∵C==∴B＜C＜A故答案为：B＜C＜A．【点评】本题主要考查不等式与不等关系，利用特殊值代入法比较几个式子在限定条件下的大小关系，是一种简单有效的方法，属于基础题．6．（2016秋•杨浦区校级期中）已知Rt△ABC的周长为定值2，则它的面积最大值为3﹣2．【考点】正弦定理．【专题】计算题；转化思想；综合法；解三角形；不等式的解法及应用．【分析】设直角边长为a，b，则斜边长为，利用直角三角形ABC的三边之和为2，可得a+b+=2，利用基本不等式，即可求△ABC的面积的最大值．【解答】解：设直角边长为a，b，则斜边长为，∵直角三角形ABC的三边之和为2，∴a+b+=2，∴2≥2+，∴≤=2﹣，∴ab≤6﹣4，∴S=ba≤3﹣2，∴△ABC的面积的最大值为3﹣2．故答案为：3﹣2．【点评】本题考查基本不等式的运用，考查学生的计算能力，正确运用基本不等式是关键，属于中档题．7．（2016秋•杨浦区校级期中）我们将b﹣a称为集合M={x|a≤x≤b}的“长度”，若集合M={x|m≤x≤m+}，N={x|n﹣0.5≤x≤n}，且集合M和集合N都是集合{x|0≤x≤1}的子集，则集合M∩N的“长度”的最小值是．【考点】交集及其运算．【专题】计算题；新定义；转化思想；转化法；集合．【分析】当集合M∩N的长度的最小值时，M与N应分别在区间[0，1]的左右两端，由此能求出M∩N 的长度的最小值．【解答】解：根据题意，M的长度为，N的长度为，当集合M∩N的长度的最小值时，M与N应分别在区间[0，1]的左右两端，故M∩N的长度的最小值是=．故答案为：．【点评】本题考查交集的“长度”的最小值的求法，是基础题，解题时要认真审题，注意新定义的合理运用．8．（2016秋•杨浦区校级期中）已知A={x|＞x}，B={x|x（x﹣3）（x+3）＞0}，则A∩B={x|﹣3＜x＜0} ．【考点】交集及其运算．【专题】计算题；方程思想；定义法；集合．【分析】先利用不等式的性质分别求出集合A和B，由此利用交集的性质能求出A∩B．【解答】解：∵A={x|＞x}={x|﹣2≤x≤1，或x＜0}，B={x|x（x﹣3）（x+3）＞0}={x|﹣3＜x＜0或x＞3}，∴A∩B={x|﹣3＜x＜0}．故答案为：{x|﹣3＜x＜0}．【点评】本题考查交集的求法，是中档题，解题时要认真审题，注意无理不等式和高次不等式性质的合理运用．9．（2016秋•杨浦区校级期中）对于任意集合X与Y，定义：①X﹣Y={x|x∈X且x∉Y}，②X△Y=（X ﹣Y）∪（Y﹣X），已知A={y|y=x2，x∈R}，B={y|﹣2≤y≤2}，则A△B=[﹣3，0）∪（3，+∞）．【考点】子集与交集、并集运算的转换．【专题】综合题；方程思想；演绎法；集合．【分析】由A={y|y=x2，x∈R}={y|y≥0}，B={y|﹣2≤y≤2}，先求出A﹣B={y|y＞2}，B﹣A={y|﹣2≤y＜0}，再求A△B的值．【解答】解：∵A={y|y=x2，x∈R}={y|y≥0}，B={y|﹣2≤y≤2}，∴A﹣B={y|y＞2}，B﹣A={y|﹣2≤y＜0}，∴A△B={y|y＞2}∪{y|﹣2≤y＜0}，故答案为：[﹣3，0）∪（3，+∞）．【点评】本题考查集合的交、并、补集的运算，解题时要认真审题，仔细解答，注意正确理解X﹣Y={x|x ∈X且x∉Y}、X△Y=（X﹣Y）∪（Y﹣X）．10．（2016秋•杨浦区校级期中）已知常数a是正整数，集合A={x||x﹣a|＜a+，x∈Z}，B={x||x|＜2a，x∈Z}，则集合A∪B中所有元素之和为2a．【考点】并集及其运算．【专题】集合思想；转化法；集合．【分析】分别求出集合A、B中的元素，从而求出A、B的并集，求和即可．【解答】解：A={x||x﹣a|＜a+，x∈Z}={0，a，2a}，B={x||x|＜2a，x∈Z}={﹣a，0，a}，则集合A∪B={﹣a，0，a，2a}，故集合A∪B中所有元素之和是2a，故答案为：2a．【点评】本题考查了集合的运算，考查解绝对值不等式问题，是一道基础题．11．（2016秋•杨浦区校级期中）非空集合G关于运算⊕满足：（1）对任意a，b∈G，都有a+b∈G；（2）存在e∈G使得对于一切a∈G都有a⊕e=e⊕a=a，则称G是关于运算⊕的融洽集，现有下列集合与运算：①G是非负整数集，⊕：实数的加法；②G是偶数集，⊕：实数的乘法；③G是所有二次三项式构成的集合，⊕：多项式的乘法；④G={x|x=a+b，a，b∈Q}，⊕：实数的乘法；其中属于融洽集的是①④（请填写编号）【考点】元素与集合关系的判断．【专题】新定义；集合思想；集合．【分析】逐一验证几个选项是否分别满足“融洽集”的两个条件，若两个条件都满足，是“融洽集”，有一个不满足，则不是“融洽集”．【解答】解：①对于任意非负整数a，b知道：a+b仍为非负整数，所以a⊕b∈G；取e=0，及任意非负整数a，则a+0=0+a=a，因此G对于⊕为整数的加法运算来说是“融洽集”；②对于任意偶数a，b知道：a+b仍为偶数，故有a+b∈G；但是不存在e∈G，使对一切a∈G都有a⊕e=e ⊕a=a，故②的G不是“融洽集”．③对于G={二次三项式}，若a、b∈G时，a，b的两个同类项系数，则其积不再为二次三项式，故G不是和谐集，故③不正确；④G={x|x=a+b，a，b∈Q}，设x1=a+b，x2=c+d，则设x1+x2=（a+c）+（b+d），属于集合G，取e=1，a×1=1×a=a，因此G对于⊕实数的乘法运算来说是“融洽集”，故④中的G是“融洽集”．故答案为①④．【点评】本题考查了对新定义“融洽集”理解能力，及对有关知识的掌握情况．关键是看所给的数集是否满足“融洽集”的两个条件．12．（2016秋•杨浦区校级期中）集合A={（x，y）|y=a|x|，x∈R}，B={（x，y）|y=x+a，x∈R}，已知集合A∩B中有且仅有一个元素，则常数a的取值范围是[﹣1，1] ．【考点】交集及其运算．【专题】计算题；转化思想；转化法；集合．【分析】由已知得a|x|=x+a有1个解，由此能求出常数a的取值范围．【解答】解：∵集合A={（x，y）|y=a|x|，x∈R}，B={（x，y）|y=x+a，x∈R}，集合A∩B中有且仅有一个元素，∴a|x|=x+a有1个解，若x≥0，ax=x+a，x=，若x＜0，﹣ax=x+a，x=﹣，由已知得或或或，解得﹣1≤a≤1．∴常数a的取值范围是[﹣1，1]．故答案为：[﹣1，1]．【点评】本题考查常数的取值范围的求法，是基础题，解题时要认真审题，是基础题，解题时要认真审题，注意交集性质的合理运用．二.选择题13．（2016秋•杨浦区校级期中）已知集合A={1，2，3，…，2105，2016}，集合B={x|x=3k+1，k∈Z}，则A∩B中的最大元素是（）A．2014 B．2015C．2016 D．以上答案都不对【考点】交集及其运算．【专题】计算题；集合思想；定义法；集合．【分析】由题意求出A与B的交集，即可作出判断．【解答】解：∵A={1，2，3，…，2105，2016}，集合B={x|x=3k+1，k∈Z}∴则A∩B中的最大元素是2014．故选：A．【点评】此题考查了交集及其运算，熟练掌握交集的定义是解本题的关键．14．（2009•江西）已知全集U=A∪B中有m个元素，（∁U A）∪（∁U B）中有n个元素．若A∩B非空，则A∩B的元素个数为（）A．mn B．m+n C．n﹣m D．m﹣n【考点】V enn图表达集合的关系及运算．【专题】数形结合．【分析】要求A∩B的元素个数，可以根据已知绘制出满足条件的韦恩图，根据图来分析（如解法一），也可以利用德摩根定理解决（如解法二）．【解答】解法一：∵（C U A）∪（C U B）中有n个元素，如图所示阴影部分，又∵U=A∪B中有m个元素，故A∩B中有m﹣n个元素．解法二：∵（C U A）∪（C U B）=C U（A∩B）有n个元素，又∵全集U=A∪B中有m个元素，由card（A）+card（C U A）=card（U）得，card（A∩B）+card（C U（A∩B））=card（U）得，card（A∩B）=m﹣n，故选D．【点评】解答此类型题目时，要求对集合的性质及运算非常熟悉，除教材上的定义，性质，运算律外，还应熟练掌握：①（C U A）∪（C U B）=C U（A∩B）②（C U A）∩（C U B）=C U（A∪B）③card（A∪B）=card（A）+card（B）﹣card（A∩B）等．15．（2016秋•杨浦区校级期中）命题“已知x，y∈R，如果x2+y2=0，那么x=0且y=0”的逆否命题是（）A．已知x，y∈R，如果x2+y2≠0，那么x≠0且y≠0B．已知x，y∈R，如果x2+y2≠0，那么x≠0或y≠0C．已知x，y∈R，如果x≠0或y≠0，那么x2+y2≠0D．已知x，y∈R，如果x≠0且y≠0，那么x2+y2≠0【考点】四种命题间的逆否关系．【专题】定义法；简易逻辑．【分析】根据已知中原命题，写出逆否命题，可得答案．【解答】解：命题“已知x，y∈R，如果x2+y2=0，那么x=0且y=0”的逆否命题是“已知x，y∈R，如果x≠0或y≠0，那么x2+y2≠0”故选：C【点评】本题考查的知识点是四种命题，难度不大，属于基础题．16．（2016秋•杨浦区校级期中）对任意实数a，b，c，给出下列命题：①“a=b”是“ac=bc”的充要条件；②“a+5是无理数”是“a是无理数”的充要条件；③“a＞b”是“a2＞b2”的充分条件；④“a＜4”是“a＜3”的必要条件；其中真命题的个数是（）A．1个B．2个C．3个D．4个【考点】命题的真假判断与应用；必要条件、充分条件与充要条件的判断．【专题】综合法；简易逻辑．【分析】逐项判断即可．①由ac=bc不能推出a=b；②由5是有理数易判断；③根据不等式的性质可得；④根据充分必要条件的定义易得．【解答】解：①由“a=b“可得ac=bc，但当ac=bc时，不能得到a=b，故“a=b”是“ac=bc”的充分不必要条件，故①错误；②因为5是有理数，所以当a+5是无理数时，a必为无理数，反之也成立，故②正确；③取a=1，b=﹣2，此时a2＜b2，故③错误；④当a＜4时，不能推出a＜3；当a＜3时，有a＜4成立，故“a＜4”是“a＜3”的必要不充分条件，故④正确．综上可得正确的命题有2个．故选：B．【点评】本题考查充分必要条件的判断，掌握充分必要条件的定义是关键．属于基础题．三.解答题word格式-可编辑-感谢下载支持17．（2016秋•杨浦区校级期中）已知集合A={1，2，3}，B={x|x2﹣（a+1）x+a=0，x∈R}，若A∪B=A，求实数a．【考点】并集及其运算．【专题】计算题；分类讨论；集合．【分析】根据A∪B=A，得到B⊆A，然后分B为空集和不是空集讨论，A为空集时，只要二次方程的判别式小于0即可，不是空集时，分别把1和2代入二次方程求解a的范围，注意求出a后需要验证．【解答】解：由A∪B=A，得B⊆A．①若B=∅，则△=（a+1）2﹣4a＜0，解得：a∈∅；②若1∈B，△=（a+1）2﹣4a=0，此时a=1，满足12﹣a﹣1+a=0，此时B={1}，符合题意；③若2∈B，则22﹣2a﹣2+a=0，解得：a=2，此时A={2，1}，满足题意．④若3∈B，则32﹣3a﹣3+a=0，解得：a=3，此时A={3，1}，满足题意．综上所述，实数a的值为：1，2，3．【点评】本题考查了并集及其运算，考查了分类讨论的数学思想，求出a值后的验证是解答此题的关键，是基础题．18．（2016秋•杨浦区校级期中）已知a，b，c∈R+，求证：2（a3+b3+c3）≥ab2+a2b+bc2+b2c+ac2+a2c．【考点】不等式的证明．【专题】证明题；转化思想；演绎法；不等式的解法及应用．【分析】作差，因式分解，即可得到结论．【解答】证明：（a3+b3）﹣（a2b+ab2）=a2（a﹣b）+b2（b﹣a）=（a﹣b）（a2﹣b2）=（a﹣b）2（a+b）∵a＞0，b＞0，∴（a3+b3）﹣（a2b+ab2）≥0∴a3+b3≥a2b+ab2．同理b3+c3≥bc2+b2c，a3+c3≥ac2+a2c，三式相加，可得2（a3+b3+c3）≥ab2+a2b+bc2+b2c+ac2+a2c．【点评】本题考查不等式的证明，考查作差法的运用，考查学生分析解决问题的能力，属于中档题．19．（2016秋•杨浦区校级期中）设正有理数a1是的一个近似值，令a2=1+，求证：（1）介于a1与a2之间；（2）a2比a1更接近于．【考点】二分法求方程的近似解．【专题】证明题；转化思想；作差法；不等式．【分析】（1）利用作差法，再因式分解，确定其符号，即可得到结论；（2）利用作差法，判断|a2﹣|﹣|a1﹣|＜0，即可得到结论【解答】证明：（1）a2﹣=1+﹣=，∵若a1＞，∴a1﹣＞0，而1﹣＜0，∴a2＜∵若a1＜，∴a1﹣＜0，而1﹣＜0，∴a2＞，故介于a1与a2之间；word格式-可编辑-感谢下载支持（2）|a2﹣|﹣|a1﹣|=﹣|a1﹣|=|a1﹣|×，∵a1＞0，﹣2＜0，|a1﹣|＞0，∴|a2﹣|﹣|a1﹣|＜0∴|a2﹣|＜|a1﹣|∴a2比a1更接近于．【点评】本题考查不等式的证明，考查作差法的运用，确定差的符号是关键．20．（2016秋•杨浦区校级期中）已知对任意实数x，不等式mx2﹣（3﹣m）x+1＞0成立或不等式mx＞0成立，求实数m的取值范围．【考点】一元二次不等式的解法．【专题】分类讨论；转化思想；不等式的解法及应用．【分析】①对任意实数x，不等式mx2﹣（3﹣m）x+1＞0成立，对m分类讨论，m=0时，易判断出．m ≠0时，，解出即可得出．②对任意实数x，不等式mx＞0成立，m∈∅．【解答】解：①对任意实数x，不等式mx2﹣（3﹣m）x+1＞0成立，m=0时化为：﹣3x+1＞0，不成立，舍去．m≠0时，，解得．②对任意实数x，不等式mx＞0成立，m∈∅．综上可得：．∴实数m的取值范围是．【点评】本题考查了一元二次不等式的解法，考查了分类讨论方法、推理能力与计算能力，属于中档题．21．（2016秋•杨浦区校级期中）已知关于x的不等式（4kx﹣k2﹣12k﹣9）（2x﹣11）＞0，其中k∈R；（1）试求不等式的解集A；（2）对于不等式的解集A，记B=A∩Z（其中Z为整数集），若集合B为有限集，求实数k的取值范围，使得集合B中元素个数最少，并用列举法表示集合B．【考点】一元二次不等式的解法．【专题】分类讨论；不等式的解法及应用；不等式．【分析】（1）对k分类讨论，利用一元二次不等式的解法即可得出．（2）根据B=A∩Z（其中Z为整数集），集合B为有限集，即可得出．【解答】解：（1）①当k＜0，A={x|}；②当k=0，A={x|x}；③当0＜k＜1或k＞9，A={x|x，或x＞}；④当1≤k≤9，A={x|x＜，或x＞}；（2）B=A∩Z（其中Z为整数集），集合B为有限集，word格式-可编辑-感谢下载支持只有k＜0，B={2，3，4，5}．【点评】本题考查了一元二次不等式的解法，考查了分类讨论方法、推理能力与计算能力，属于中档题．。

上海市复旦大学附属中学2017-2018学年高二上学期期中考试英语试题 Word版含答案

复旦大学附属中学2017-2018学年第一学期高二年级期中考试试卷II. Grammar and vocabulary (26%)Section ADirections: Read the following two passages. Fill in the blanks to make the passage coherent. For the blanks with a given word, fill in each blank with the proper from of the given word. For the other blanks, fill in each blank with one proper word. Make sure that your answers are grammatically correct.(A)As a student, I get so many assignments every day. I have to stay up late in order to finish all my homework. I used to complain about all this pressure (25) ______ school with my classmates. We did not appreciate our teachers for their hard work. We only (26) _______ (know) that we got a lot of homework.After a few months, we did not complain about homework anymore (27) _______ we knew that our teachers worked (28) ________ (hard) than we did. We had no right to complain. Sometimes, we said, “I didn’t go to bed until 12:00 o’clock last night. Now I just want to sleep.” Our teacher would answer us, “I go to bed at 1:00 a.m. every day.” Since we knew how hard teachers work, we started to appreciate them. To give our thanks, we wrote a big card to the teachers (29) _______ it was teachers’ day. When they got our card, they (30) _________ (touch) because their students finally knew the teachers’ effort.After (31) _________ (give) the card, I realized (31) powerful the sentence “thank you” is. When we give our thanks to somebody, the world is full of love.I say “thank you” to my friends, family, classmates, teachers, and even strangers.I like to see the smiles on their faces, so (32) ________ (say) “thank you” every day is the way I make the world a better place.(B)Phyllis Rawlins’ house was destroyed after a tornado(龙卷风) swept through her town of Kokomo, Ind., on Sunday. Last summer, she lost (33)_______ husband of over 40 years, Edgar. In the tornado’s rubble(瓦砾), Rawlins searched for Edgar’s wedding ring. “Digging and praying. Digging and praying,” she told local station Fox 59.“It was everything to me, because that’s one thing that I had,” she said.Rawlins had been visiting family in Kentucky when the storm came through. She returned (34) ________ find her home completely in pieces. “This was the house that love built,” she told WTHR.Without her husband or her house, she was determined to find the ring. But (35) ________ (locate) it among the piles of rubble seemed to be hopeless.Somehow, her brother spotted something under (36) _______ piece of the roof and called her over. The ring, (37) _______ (bury) in the rubble, had turned up.“It was a miracle,” Rawlins said. “We both just hugged each other, (38) _______ (cry). That was (39) _______ I had searched and searched for,”When all was lost, the special ring he left was finally found.“I’m very strong with my faith, and I know that God is in control of (40) _________, the good and the bad,” Rawlins said.Section BDirections: Complete the following passage by using the words in the box．Each word can only be used once. Note that there is one word more than you need．Zhou Yeling couldn’t wait until 7am for a long-awaited date with her favourite Englishman.The 19-year-old from the city of Shanghai dragged herself out of bed at 5am to watch the third season premiere of Sherlock on the BBC’s website. Two hours later, the episode started showing with Chinese subtitles on , a video website.Youku says it was viewed more than 5 million times in the first 24 hours, becoming the site’s most popular programme to 41.“I was excited beyond words,” said Zhou, a student in the central Chinese city of Changsha.Sherlock has become a global 42, but nowhere more than in China, which was one of the first countries where the new season was shown.Online fan clubs have attracted thousands of members. Chinese fans write their own stories about the modern version of author Arthur Cona n Doyle’s prickly, Victorian detective and his 43, Dr Watson, to fill the time between the brief, three-episode seasons.“The Sherlock production team shoot something more like a movie, not just a TV drama,” said YuFei, a veteran writer of TV crime dram as for Chinese television. Scenes in which Holmes44 clues in a suspect’s clothes or picks apart an alibi are so richly detailed that “it seems like a wasteful luxury,” Yu said.Even the Communist Party newspaper People’s Daily is a fan.“45 plot, bizarre story, exquisite production, excellent performances,” it said of the third season’s first episode.With its mix of odd villains, eccentric aristocrats and fashionable London settings, Sherlock can draw on a Chinese fondness for a storybook version of Britain. Wealthy Chinese send their children to local branches of British schools such as Eton and Dulwich.On the outskirts of Shanghai, a developer has built Thames Town, modelled on an English village with 46Tudor houses and classic red phone booths.“The whole drama has the rich scent of British culture and47,” Yu said. “Our drama doesn’t have that.”The series has given a48to , part of a fast-growing Chinese online video industry. Dozens of sites, some independent and others run by Chinese television stations, show local and imported programmes such as The Good Wife and The Big Bang Theory. says that after two weeks, total 49 for the Sherlock third season premiere had risen to 14.5 million people. That compares with the 8 to 9 million people who the BBC says watch first-run episodes in Britain. The total in China is bumped up by viewers on pay TV service BesTV, which also has rights to the programme.Appearing online gives Sherlock an unusual 50over Chinese dramas. To support a fledgling industry, communist authorities have exempted video websites from most censorship and limits on showing foreign programming that apply to traditional TV stations. That allows outlets such as Youku to show series that might be deemed too violent or political for state TV and to release them faster.III. Cloze (15points)Section A (15分)Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.Summer is an ideal time to get the jump on your college admissions essay. These less hurried months before the onslaught of a highly pressured fall offer the chance for students to think, 51and connect with a writing topic of your admissions essay.So how can you use the summer to your best 52?First，you’d better clear your head. 53 like TV, texting, video games and Internet surfing can seriously inhibit 54. Once your school term is over, 55some time away from those electronic diversions and find a park bench, rooftop, library carrel or some other quiet place where you can hear your thoughts bubbling up from deep down in your 56Next，ask yourself questions. In looking for an essay topic, an excellent way to begin is by asking questions that can 57some juicy conflict. But don’t forget write it down. carry around a pad and pencil or some kind of wireless 58to record your thoughts. if you don’t write it down, you’re 59 to lose them.Certainly,you are required to familiarize yourself with the narrative form. It is far better to think of the college admissions essay as your chance to tell a good story. Stories are narratives. Be conscious of their narrative 60Last but not least.you should enjoy yourself. These feel-good months make it easier to relax, and61the college admissions essay with less anxiety is a good thing. It would be extremely 62to view this assignment as a creative act. You’ll want to 63yourself to the work, think that your essay will 64 through a series of drafts and allow yourself to take some 65in the process.51. A. renew B. reflect C. reserve D. resign52. A.advantage B.gain C favor D. profit53. A.Discussions B. Distributions C. Distinctions D. Distractions54. A.motive B. awareness C.inspiration D.shelter55. A.schedule B. program C. draft D. enclose56. A. consequence B.consensus C. conscience D. consciousness.57. A. turn B. dress C.catch D. run58. A. dignity B.devil C. dialect D.device59. A. free B. bound C. obliged D.possible60. A. technologies B.negotiations C.discussions D. techniques61. A. moving B.accessing C.approaching D. entering62. A. Irresistible B. beneficial C.discreet D.inevitable63. A.attach B.reply C. commit D. appeal64. A.emerge B.flutter C.stoop D. evolve65. A. pleasure B. worth C.literacy D. courageIV. Reading Comprehension (15 points)Section ADirections:Read the following three passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A,B,C,andD.choose the one that fits best according to the information given in the passage you have read.(A)Texting has long been bemoaned (哀叹）as the downfall of the written word,“penmanship for illiter,”as one critic called it. To which the proper response is LOL.Texting properly isn′t writing at all. It′s a “spoken” language that is getting richer and more complex by the year.First,some historical perspective. Writing was only invented 5,500 years ago. whereas Ianguage probably traces back at least 80.000 years. Thus talking came first; writing is just a craft that came along later. As such, the first writing was based on the way people talk，with short sentences.However, while talking is largely subconscious and rapid, writing is deliberate and slow, Over time,writers took advantage of this and started cratting long-winded sentences such as this one:The whole engagement lasted above 12 hours, till the gradual retreat of the Per trsians was changed into a disorderly flight, of which the shameful example was given by the principal leaders and……”No one talks like that casually — or should. But it is natural to desire to do so for special occasions. In the old days, we didn’t much write like talking because there was no mechanism to reproduce the speed of conversation. But texting and instant messaging do —and a revolution has begun. It involves the crude mechanics of writing, but in its economy, spontaneity and even vulgaritv. texting is actually a new kind of talking, with its own kind of grammar and conventions.Take LOL. It doesn’t actually mean “laughing out loud” in a literal sense anymore. LOL has evolved into something much subtler and sophisticated and is used even when nothing is remotely amusing. Jocelyn texts “Where have you been?” and Annabelle texts back ，LOL at the library studying for two hours.” LOL signals basic empath)’（同感)between tcxters. easing tension and creating a sense of equality. Instead of having a literal meaning, it docs something - conveying an attitude —just like the -cd ending conveys past tense rather than “meaning.，anything. LOL.of all things, is grammar.Of course no one thinks about that consciously. But then most of communication operates without being noticed. Over time, the meaning of a word or an expression drifts meat used to mean any kind of food, silly used to mean, believe it or not，blessed.Civilization, then，is fine 一 people banging away on their smartphones are fluently using a code separate from the one they use in actual writing, and there is no evidence that texting is ruining composition skills. Worldwide people speak differently from the w ay they write, and texting -quick, casual and only intended to be read once — is actually a way of talking with your fingers.66.In what way does the author say writing is different from talking?A) It is crafted with specific skills.B) It expresses ideas more deeply.C) It does not have as long a history.D) It is not as easy to comprehend.67.Why is LOL much used in texting?A) It brings texters closer to each other.B) It shows the texter's sophistication.C) It is a trendy way to communicateD) It adds to the humor of the text68.Examples like meat and silly are cited to showA) the difference between writing and talkingB) how different words are used in textingC) why people use the words the way they doD) the gradual change of word meaning(B)Mark Twain has been called the inventor of the American novel. And he surely deserves additional praise: the man who popularized the clever literary attack on racism.I say clever because anti-slavery fiction had been the important part of the literature in the years before the Civil War. H. B. Stowe’s Uncle Tom’s Cabin is only the most famous example. These early stories dealt directly with slavery. With minor exceptions, Twain planted his attacks on slavery and prejudice into tales that were on the surface about something else entirely. He drew his readers into the argument by drawing them into the story.Again and again, in the postwar years, Twain seemed forced to deal with the challenge of race. Consider the most controversial, at least today, of Twain’s novels, Adventures of Huckleberry Finn. Only a few books have been kicked off the shelves as often as Huckleberry Finn, Twain’s most widely read tale. Once upon a time, people hated the book because it struckthemas rude. Twain himself wrote that those who banned the book considered the novel “trash and suitable only for the slums(贫民窟).” More recently the book has been attacked because of the character Jim, the escaped slave, and many occurrences of the word nigger. (The term Nigger Jim, for which the novel is often severely criticized, never appears in it.)But the attacks were and are silly—and miss the point. The novel is strongly anti-slavery. Jim’s search through the slave states for the family from whom he has been forcibly parted is heroic. As J. Chadwick has pointed out, the character of Jim was a first in American fiction—a recognition that the slave had two personalities, “the voice of survival within a white slave culture and the voice of the individual: Jim, the father and the man.”There is much more. Twain’s mystery novel Pudd’nhead Wilson stood as a challenge to the racial beliefs of even many of the liberals of his day. Written at a time when the accepted wisdom held Negroes to be inferior (低等的) to whites, especially in intelligence, Twain’s tale centered in part around two babies switched at birth.A slave gave birth to her master’s baby an d, for fear that the child should be sold South, switched him for the master’s baby by his wife. The slave’s light-skinned child was taken to be white and grew up with both the attitudes and the education of the slave-holding class. The master’s wife’s bab y was taken for black and grew up with the attitudes and intonations of the slave.The point was difficult to miss: nurture (养育), not nature, was the key to social status. The features of the black man that provided the stuff of prejudice—manner of speech, for example—were, to Twain, indicative of nothing other than the conditioning that slavery forced on its victims.Twain’s racial tone was not perfect. One is left uneasy, for example, by the lengthy passage in his autobiography (自传) about how much he love d what were called “nigger shows” in his youth—mostly with white men performing in black-face—and his delight in getting his mother to laugh at them. Yet there is no reason to think Twain saw the shows as representing reality. His frequent attacks on slavery and prejudice suggest his keen awareness that they did not.Was Twain a racist? Asking the questioning the 21 stcentury is as wise as asking the same of Lincoln. If we read the words and attitudes of the past through the “wisdom” of the considered moral judgments of the present, we will find nothing but error. Lincoln, who believed the black man the inferior of the white, fought and won a war to free him. And Twain, raised in a slave state, briefly a soldier, and inventor of Jim, may have done more to anger the nation over racial injustice and awaken its collective conscience than any other novelist in the past century.69. How do Twain’s novels on slavery differ from Stowes?A. Twain was more willing to deal with racism.B. Twain’s attack on racism was m uch less open.C. Twain’s themes seemed to agree with plots.D. Twain was openly concerned with racism.70. What best proves Twain’s anti slavery stand according to the author?A. Jim’s search for his family was described in detail.B. The slave’s voice wa s first heard in American novels.C. Jim grew up into a man and a father in the white culture.D. Twain suspected that the slaves were less intelligent.71. The story of two babies switched mainly indicates that .A. slaves were forced to give up their babies to their mastersB. slaves babies could pickup slave holders‵ way of speakingC. blacks‵ social position was shaped by how they were brought upD. blacks were born with certain features of prejudice72. What does the author mainly argue for?A. Twain had done more than his contemporary writers to attack racism.B. Twain was an admirable figure comparable to Abraham Lincoln.C. Twain’s works had been banned on unreasonable grounds.D. Twain s works should be read from a historical point of view.Section BDirections:complete the following passage by using the sentences in the box. Each sentence can only be used once. Note that there are two sentences more than you need.Scientists have identified the clear biological advantages that give the world's sporting champions a head start in life before they have even begun their rigorous training programs.The coach for the French Olympic team says: “We measure special attributes between the ages of 16 and 18. But only one in 10, 000 people has the physical aspects needed to compete at the very top level in sporting events.___73___.We take into account the height, strength and endurance of a person. We also regard mental application as important, how an individual reacts when the competition gets really tough.”Scientists say that medical evidence is playing an increasingly important role in the selection of athletes. A study of the 40-year dominance of Kenyan runners in long distance athletic events has revealed that 45 per cent of them come from the Nandi tribe. What is remarkable is that this tribe makes up only 3 per cent of the Kenyan population.___74___. Athletic organizations consider these genetic factors a good indicator when selecting athletes to produce superior running performances.___75___.For example, David Beckham's bandy legs have been partly credited with helping to put a spin on the football when he takes a free kick for England. Other biological characteristics are more measurable. The American tennis player, AndyRoddick, has the fastest serve in the game. He is able to arch his back so much that it increases the rotation of his arm to 130 degrees. This is 44 per cent better than the average professional player and this allows him to drive the ball over the net at 240 kilometers per hour. Michael Phelps, the fourteen-times Olympic swimming champion, has over-size feet which act like flippers to propel him through the water.___76___.Mia Hamm, probably the best all-round woman footballer in the world, produces less than one liter of sweat an hour when doing vigorous exercise, which is half the human average. When it comes to speed, take the example of woman racing driver, Liz Halliday. A normal person would take 300 milliseconds to make a reactive decision. She can do it in 260 milliseconds. It may not sound much quicker but at top race speeds this makes a difference of three car lengths.The difference between success and failure is very small and all these biological factors are crucial in finding future champions.V. Productive Grammar (10 points )Directions:After reading the passage below, fill in the blanks to make the passages coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word;for the other blanks, use one word that best fits each blank.Golden Rules of Good DesignWhat makes good design? Over the years, designers and artists __77_____(try) to capture the essentials of good design. They have found that some sayings can help people understand the ideas of good design. There are four____78_____follows.Less is more. This saying is associated with the German-born architect Mies van der Rohe. In his Modernist view, beauty lies in simplicity and elegance, and the aim of the designer is ____79_____(create) solutions to problems through the most efficient means. Design should avoid unnecessary decorations.More is not a bore. The American-born architect Robert Venturi concluded that____80___ simplicity is done badly, the result is soulless design. Post-Modernist designers began to experiment with decoration and color again. Product design was heavily influenced by this view and can be seen in kitchen appliances ____81____ ____81____ovens and kettles.Fitness for purpose. Successful product design takes into consideration a product’s function, purpose, shape, form, color, and so on.The most important result for the user is that the product does____82____is needed. For example, think of a(n) adjustable desk lamp. It needs to be constructed from materials that will stand the heat of the lamp and regular adjustments by the user. It also needs to be stable. ____83____(importantly), it needs to direct light where it is needed.From follows emotion. This phrase is associated with the German designer Hartmut Esslinger.He believes design____84____take into account the sensory side of____85____nature—sight, smell, touch and taste. These are as important as rational(理性的). When ____86____(choose)everyday products such as toothpaste, we appreciate a cool-looking device that allows us to easily squeeze the toothpaste onto our brush.VI. Translation ( 15 points )Directions: Translate the following sentences into English, using the words given in the brackets.86.不可否认鼓励学生的最好方法之一是颁发奖学金。

七年级·兰生期中考试卷

复旦兰生七年级第一学期期中考试一、填空题（每空2分，共32分）1、在代数式1232x x -，22x y π，1x ，6-，a ，0中，单项式有个.2、商店经营一种产品，定价为20/件，每天能售出80件，而每降价x 元，则每天可多售出()2x +件，则降价x 元后，每天的销售总收入是.3、用语言叙述代数式()()m n m -⋅-为.4、多项式()2443213777x y xy x -----的最高次项是，二次项系数是 .5、已知代数式3312n a b +与223m a b --是同类项，则23m n +=.6、当12x =，13y =时，代数式22469x xy y -+的值是 .7、如果2m x =，5n x =，那么32m n x +=.8、将多项式2432433625x y xy x y x y +---按字母y 升幂排列.9、多项式的积()()4323232862564x x x x x x x -+-++--中3x 项的系数是 .10、当10x y +=，337x y +=时，代数式2241612x xy y ++的值是.11、因式分解：229162169a ab b -+=12、因式分解：()()()222122y x y x y +++-+.13、数学课上老师出了一道因式分解的思考题，题意是2224x mx ++能在有理数的范围内，因式分解，则整数m 的值有几个，小军和小华为此争论不休，请你判断整数m 的值有个.14、数字不同的两位数，将其数字交换后，得到一个新的两位数，这两个两位数的平方差是完全平方数，则这两个两位数是.15、对于任意两个实数对(),a b 和(),c d ，规定：当且仅当a c =且b d =时，()(),,a b c d =.定义运算“⊗”：()()(),,,a b c d ac bd ad bc ⊗=-+，若()()()2,3,4,32p q ⊗=，则p 和q 的值是.二、选择题（每题2分，共10分）1、下列多项式中能用平方差公式因式分解的是（）A 、()22a b +-B 、225100m mn -C 、22x y --D 、29x -+2、下列计算正确的有（）个.（1）235x x x +=（2）()()963x x x -÷-= （3）()3131m m y y ++= （4）()n n x x -=- （5）()2321x x x x x x --+=---（6）2362639x x ⎛⎫-= ⎪⎝⎭ A 、0B 、1C 、2D 、33、在代数式2xy 中，x 与y 的值各减少了14，则该代数式的值减少了（） A 、12 B 、34 C 、3764 D 、27644、将以多项式()()221734x x ax bx c ⎡⎤-+-++⎣⎦除以()56x +后，得商式为()21x +，余式为0，则a b c --的值是（）A 、3B 、23C 、25D 、295、下列关于因式分解的情况正确的是（）A 、()224343x y xy xy xy x y ++=+B 、()22211244a ab b a b ++=+C 、()2242m m +=+D 、若()()242x x x a x b -+=++，则a 、b 异号三、计算题（每题4分，共16分）1、()3222234135344x y ax a x y ⎛⎫⎛⎫-⋅-⋅- ⎪ ⎪⎝⎭⎝⎭2、()()234432x y z y x z -+--3、()213323a b b a b a ⎡⎤⎛⎫-+-÷ ⎪⎢⎥⎝⎭⎣⎦4、()()2322332a ab a ab a ab ⎡⎤-++--⎢⎥⎣⎦四、因式分解（每题4分，共16分）1、4128a -.2、()()()2223a b c c a b b a c abc ++++++3、()()22233183120m m m m +-+-4、9151418242n n n x x y x y ----+-五、解答题（第1至4题每题5分，第5题6分，共26分）1、先化简，再求值：()13235122y x x y ⎛⎫++--- ⎪⎝⎭，其中2x =， 1.5y =.2、立方体的每个面上都写有一个正整数，并且相对两个面上所写两数之和都相等，若18的对面写的是a ，14的对面是b ，35的对面写的是c ，试求222a b c ab bc ac ++---的值..3、已知：225x x ++是多项式4x px q ++的一个因式，求它的其他因式.4、已知250x x --=，求54322619818x x x x x +---+的值.。

青浦区复旦附中2017学年第一学期期中考试试卷答案

2017学年第一学期期中考试试卷初一级数学答案一．1.C2.D3.C4.C5.A 解:,,,,,,,,,,,,分别计算得出:,-4,5,-5,8.5,;整数m的值有4个,所以A选项是正确的.6.D本题主要考查平方差公式。

据图（1）所示，由正方形面积公式可得，阴影部分面积等于，四个等腰梯形的高等于；据图（2）所示，由等腰梯形面积计算公式可得，阴影部分面积等于。

图（1）和图（2）中阴影部分面积相等，因此可得。

11.1-a 12.5 解:,,,计算得出.13. 3± 解:,,,则. 因此，本题正确答案是:3±315.等腰三角形,因不为0,则,故此为等腰三角形.16. mn m +-224三．19.原试=ax20..式计算. 【解答】解：=.1417解:2,22.23. )3)(4)(2)(3(+-+-x x x x 2解:原式,当时,原式.5解析：解:,,,,,,.27.9或-6解析：设分解后的一个因式为,则另一个因式为则所以,,,,根据,,,计算得出、或,、或、(1)当、、、,则(2)当、、、,则(3)当、、,则(4)当、、,则因此，本题正确答案是9或-628.设甲每次买大米，乙每次买大米花元，则甲购买大米的平均价格为元/kg，乙购买大米的平均价格为元/kg，＞0，＞0. ＞乙的购买方式更合算. 29.解:(1)图②中厘米,图③中厘米,图④中厘米,因此，本题正确答案是:21;19;15;(2)因为图④为轴对称图形所以,, 即开始折叠时点M与点A的距离是厘米.30.解:(1)分组:,,,,, ,,.当时,积为:,(2)c为某组倒数第二个数,d为该组最后一个数,设它们在第n组,,则,,。