模拟题答案.pdf
广东省2024届高三下册高考化学仿真模拟试题(附答案)
广东省2024届高三下学期高考化学仿真模拟试题全卷共8页，20题。
全卷满分100分，考试用时75分钟可能用到的原子量：H1 Li7 C 12 O 16 K 39 Co 59一、选择题（本题共16小题，共44分。
第1～10小题，每小题2分；第11～16小题，每小题4分。
在每小题给出的四个选项中，只有一顼是符合题目要求。
）1．岭南文化源远流长，对社会的发展起着积极的推动作用。
下列地方文化涉及的材料主要成分不属于有机高分子化合物的是2．二十大报告提出科技创新是赢得未来发展主动权的必然选择。
下列说法错误的是A．“天和号”推进器上的氮化硼陶瓷属于有机高分子材料B．量子通信材料螺旋碳纳米管和石墨烯互为同素异形体C．“天宫”空间站中太空机械臂的主要成分为铝合金，其强度大于纯铝D．中国研制的微纳米光刻机，其材料之—四甲基氢氧化铵[(CH3)4NOH]可溶于水3．广东作为工业强省，是国内较早发展工业旅游的地区。
下列说法正确的的是A．罗浮山豆腐花现代全自动制作工艺——蛋白质溶液中加入石膏可发生变性B．东莞稻作智造之旅——水稻中的核酸可以水解为核苷和磷酸C．茂名油城之旅——石油的分馏、石油裂化均为物理变化D．广州药醉之旅——中医之米酒酿制过程涉及淀粉和葡萄糖的水解4．化学改善人类的生活，创造美好的世界。
下列生产生活情境中的化学原理正确的是选项生产生活情境化学原理A用洁厕灵（主要含浓盐酸）清洗马桶含氯化合物具有杀菌消毒功能B用铝槽运输浓硝酸浓硝酸与Al不反应C用FeCl3溶液腐蚀Cu刻制印刷电路板Fe比Cu金属性强D用聚乳酸塑料替代传统塑料以减少白色污染聚乳酸具有生物可降解性O82-+2I-2SO42-+I2，向溶液中5．水溶液中，过二硫酸盐与碘离子反应的离子方程式为：S加入含Fe3+的溶液，反应机理如图所示。
下列有关该反应的说法不正确的是A．向反应后的溶液滴加淀粉溶液，溶液变蓝，再适当升温，蓝色变浅B．Fe3+是该反应的催化剂，加入Fe3+后反应体系更快达到平衡C．反应①的速率比反应②的速率快D．反应②的离子方程式为2Fe2++ S2O82-2Fe3++2SO42-6．百服宁口服液为解热镇痛药，其主要化学成分的结构简式如图所示，下列有关该有机化合物的叙述正确的是H8NO2A．分子式为CB．碳原子杂化轨道类型只有sp2杂化C．1 mol该有机物最多与2 mol NaOH反应D．能发生氧化、还原、水解、消去反应7．设N A为阿伏加德罗常数的值。
五年中考三年模拟英语试题及答案PDF.pdf
A. what he does say hat he says C. how he says D. what does he say
4. ---___________ have you lived there?
---I’ve lived there __________ I left school.
2. They all felt _______ after a ________ bus ride.
A. happy; pleased B. pleasant; pleased C. pleased; pleasant D. happy; pleasure
3. No matter ___________, I won’t agree with him.
A. How long; since
B. How soon; when
C. How long; as soon as
D. When; since
5. This jacket is so nice, but it __________ too much.
A. pays
B. costs
C. takes
D. spend
（二）听对话和对话后的问题，选择正确答案（5 分）
1. A. Friday 2. A. Class 4, Grade 2. 3. A. Eggs and tea. 4. A. 8673305 5. A. Japan
B. Thursday. B. Class 5, Grade 2. B. Bread and tea. B. 8673350 B. Lday.
B. It’s a sunny day.
5. A. It’s my pleasure. B. I’m glad to hear it.
高考英语语法单句填空历年真题模拟专题五：情态动词和虚拟语气(word版有答案).pdf
情态动词和虚拟语气1. (2016 •北京,29)—Can't you stay a little longer?一It's getting late. I really_________go now. My daughter is home alone.2. (2016 •北京，34)If I_________(see) it with my own eyes,I wouldn't have believed it.3. (2016 •福建，27)—Sorry, Mum! I failed the job interview again.—Oh, it's too bad. You _________ have made full preparations.4. (2016 •安徽，32) It is lucky we booked a room, or we _________(have) nowhere to stay now.5. (2016 •四川，2)You_________be careful with the camera. It costs!6. (2016 •陕西，23)Ellen is a fantastic dancer. I wish I_________ (dance) as well as her.7. (2016 •天津)_________have worried before I came to the new school, for my classmates here are very friendly to me.8. (2016 •天1 wish I _________(be) at my sister's wedding last Tuesday, but I was on a business trip in New York then.9. (2016 •重庆，12) You _________ be Carol. You haven't changed a bit after all these years.10. (2015•湖南，25)—I’ve prepared all kinds of food for the picnic.—Do you mean we_________not bring anything with us?11. (2015•福建，32)_________(be) there no modem telecommunications, we would have to wait for weeks to get news from around the world.12. (2015•陕西）We would rather our daughter_________(stay) at home with us, but it is her choice, and she is not a child any longer.13. (2015•重庆，3) I，we ordered some pizza, so we _________ worry about cooking when we get home tired.14. (2015•重庆，13)It was John who broke the window. Why are you talking to me as if I_________(do) it?15 (2015•陕西，25)My book, The House of Hades,is missing. Who_________ have taken it?16. (2015•四川，6)I still remember my happy childhood when my mother _________ (will) take me to Disneyland at weekends.17 (2015•湖南) If Mr Dewey_________(be) present, he would have offered any possible assistance to the people there.18 (2014 •天津，9)No one_________be more generous; he has a heart of gold.19. (2014 •浙江，3)1_________(not enjoy) myself more—it was a perfect day.20 (2014 •天津，14) If he had spent more time practicing speaking English before, he_________(be) able to speak it much better now.21. (2014 •陕西，12)My mom suggests that we_________(eat) out for a change this weekend.22. (2014 •辽宁，31) Harry is feeling uncomfortable. He _________(drink) too much at the party last night.23. (2014 •新课标Ⅰ，29) The door_________ not open, no matter how hard she pushed.15. (2014 •重庆，29)—It rained cats and dogs this morning. I'm glad we took an umbrella.—Yeah, we would have got wet all over if we _________(have).24. (2014 •安徽，34)It_________ be the vocabulary that caused you the problem in the exercise because you know a lot of words.25. (2014 •湖南，32) He_________ sleep, although he tried to, when he got on such a hunt for an idea until he had caught it26. (2014 •新课标II，6) Since nobody gave him any help, he _________ have done the research on his own.27. (2014 •重庆，26)—What are you doing this Saturday?—I'm not sure, but I _______ go to the Rolling Stones concert.28. (2014 •陕西，21)The children_________(get) lost in the wood ；otherwise, they would have been at the lakeside camp as scheduled.29. (2014 •安徽，28)I_________(go) to my cousin's birthday party last night,but I was not available.30. (2016 •河南洛阳第一次统考）The only thing that I _________do was that 1 wished her a long life.31 (2016 •温州八校高三联考）Since you have such good preparations, there _________ not be any problem about passing the coming job interview.32 (2016 •江西师大附中等五校联考）It has been accepted that all the students_________put on masks before going toschool in case they are infected with flu virus.33. (2016 •山西高三二诊）There was a little mouse staying at home all day. I_________ go out, even at night.34. (2015•甘肃会宁五中第三次月考）I have her telephone number. You_________call her if you like.35 (2015•河北衡水中学高三六调）I think something_________ have happened to Jill.36. (2015•新疆师大附中12 月月考）Some students prefer to consider majors first so that they_________ learn what they are interested in.37 (2015•辽宁大连六校期末联考）But he_________give up.38. (2015•甘肃白银会宁五中11月月考）Now I_______ like to ask you to look at some photographs if you don't mind39 (2015•安徽六校教研会联考）Anyone________be in a rough life time, whether he is "Bai Fumei" or "Gao Fushuai".专题综合测试一、单句填空1. I got up early this morning, but I_________ not have done so because I don't work on Sundays.2. He_________ have finished his report last night, but he was watching TV the whole night3. She_________ be nearly 90 years old now.4. All students_________wear school uniform in school.5. "If only I_________(can) turn back time, I would scold him severely," she said regretfully.6. If I_________(be) you, I，d talk to your English teacher. He might have some good ideas.7. It is the rule that no person_________ bring drinks into the student computer pool.8. —Will Tony come to the party tonight? —I'm not sure. He_________stay at home preparing for the coming exam.9. You should pay a lot of attention to children's ideas? sometimes they_________be really creative.10. You _________ use your cell phone here in our hospital because it's forbidden.11. It_________have been raining heavily when he got back home for he was wet all over.12. 1 wish I_________(know) what is going to happen.13. The old woman treats these boys as if they_________(be) her own children.14. It，s high time that we_________(get) down to our study. j15. When we worked in the same company, we_________often have coffee together.二、语法填空Passage 1Drunk driving, a major concern currently, is not a funny thing, (1)________ has killed many people and ruined the lives of many others. At present, traffic accidents become “the world's first harm”.Two months ago, after (2)________ (drink) a lot of alcohol, my friend's uncle drove his car home. He was (3)________ (heavy) drunk, but he still drove home by (4)________ . On the road near his home, an old lady was going across the road, (5)________ his uncle didn't notice her and he was still moving on under the influence of alcohol. And the old lady didn’t see his uncle, either. In the end, the lady di ed.(6)________ it not been for his uncle’s drunkenness, the terrible accident would not have happened.If the lady hadn’t died, she would live (7)________ happy life with her daughters and sons. And his uncle’s home was also destroyed by his uncle. Therefore, two (8)________ (family) were destroyed.I wish more people (9)________ (can) realize the seriousness of drunk driving and obey the traffic regulations faithfully. Always remember:refuse (10)________ (drink) and drive, and give a safe world to you and me!Passage 2Tasui is a teenager who lives in Africa. When he was young, he had polio(小儿麻搏症）. Although he wants to go to school, he (1)________ work.Tasui is only one of millions of children (2)________ can’t go to school. Many must work to support their (3)________ (family). Therefore, more than 100 million children will never receive an education. Can anything be done?Global Campaign for Education(GCE) thinks so. It was formed (4)________ (solve) this problem. The government aims to give every person, (5)________ (especial) those in poverty, an opportunity to get an education.(6)____ (establish) in 1999, GCE is made up of 120 organizations with members in almost 100 countries. Educationis a basic human right, (7)________ GCE campaigns to realize this right It works with governments to improve education in each country.Today, nearly (1)________ in (6)________ people around the world (8)________ read or write. Not being able to read impacts a person’s job opportunities and (9)________ (increase) poverty. GCE seeks to provide teaching materials in primary students’ mother tongues. Around the world, many girls are often denied an education. GCE aims to give women the same opportunities as menu GCE believes that education (10)________ change lives.Passage 3Last Saturday evening I arrived at the concert hall very early. The performance (1)________ (begin) at (7)________:(3)________0. All the seats were not free. We were so (2)________ (excite) by the special sound of heavy metal that we (3)________ help crying and jumping. Suddenly I heard the sharp sound of an ambulance and saw a young man (4)________ (take) out of the hall quickly. He (5)________ have been injured in the excitement, but this didn’t stop the concert. It still went on (6)________ (smooth). When the concert was over, the singer thanked us for our enthusiasm. We kept (7)________ (cheer) for some time. To tell the (8)________ , I’m really crazy about the singing with heavy metal. I wish I (9)________ (be) a singer of this type of popular music. And I think more and more people will become interested (10)________ it very soon.专题五情态动词和虚拟语气参考答案考点07 情态动词和虚拟语气一、试真题A组）新题速递1. must句意:-你不能再多待会儿吗？-太晚了。
2024届浙江省温州市普通高中高三下册英语模拟试题(三模)附答案
2024届浙江省温州市普通高中高三下学期英语模拟试题（三模）注意事项：1.答卷前，考生务必将自己的姓名、准考证号填写在答题卡上，2.回答选择题时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑。
如需改动，用橡皮擦干净后，再选涂其他答案标号。
回答非选择题时，将答案写在答题卡上，写在本试卷上无效。
3.考试结束后，将本试卷和答题卡一并交回。
第一部分听力（共两节，满分30分）做题时，先将答案标在试卷上，录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节（共5小题：每小题1.5分，满分7.5分）听下面5段对话，每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. Where are the speakers?A. At a hotel.B. At an airport.C. At a cafe.2. How does the man's girlfriend feel now?A. Anxious.B. Confused.C. Annoyed.3. What's wrong with the printer?A. It's offline.B. It runs out of ink.C. It has a paper jam.4. What is the man doing?A. Giving comfort.B. Offering advice.C. Asking for help.5. What do we know about Lisa?A. She is a climbing enthusiast.B. She may refuse the invitation.C. She just had an adventure race.第二节（共15小题：每小题1.5分，满分22.5分）听下面5段对话或独白。
湖北省黄冈中学2020年自主招生(理科实验班)预录考试数学模拟试题五(pdf版,含解析)
2020年黄冈中学自主招生（理科实验班）预录考试数学模拟试题五一、选择题（共5小题，每题4分，满分20分）1．（4分）下列图中阴影部分面积与算式|﹣|+（）2+2﹣1的结果相同的是（）A．B． C. D．2．（4分）如图，∠ACB=60°，半径为2的⊙O切BC于点C，若将⊙O在CB上向右滚动，则当滚动到⊙O与CA也相切时，圆心O移动的水平距离为（）A．2πB．4πC．2D．43．（4分）如果多项式x2+px+12可以分解成两个一次因式的积，那么整数p的值可取多少个（）A．4 B．5 C．6 D．84．（4分）小明、小林和小颖共解出100道数学题，每人都解出了其中的60道，如果将其中只有1人解出的题叫做难题，2人解出的题叫做中档题，3人都解出的题叫做容易题，那么难题比容易题多多少道（）A．15 B．20 C．25 D．305．（4分）已知BD是△ABC的中线，AC=6，且∠ADB=45°，∠C=30°，则AB=（）A．B．2C．3D．6二、填空题（共6题，每小题5分，满分30分）6．（5分）满足方程|x+2|+|x﹣3|=5的x的取值范围是．7．（5分）已知三个非负实数a，b，c满足：3a+2b+c=5和2a+b﹣3c=1，若m=3a+b ﹣7c，则m的最小值为．8．（5分）如图所示，设M是△ABC的重心，过M的直线分别交边AB，AC于P，Q两点，且=m，=n，则+=．9．（5分）在平面直角坐标系中，横坐标与纵坐标都是整数的点（x，y）称为整点，如果将二次函数的图象与x轴所围成的封闭图形染成红色，则此红色区域内部及其边界上的整点个数有个．10．（5分）如图所示：在平面直角坐标系中，△OCB的外接圆与y轴交于A （0，），∠OCB=60°，∠COB=45°，则OC=．(第10题图) (第11题图)11．（5分）如图所示：两个同心圆，半径分别是和，矩形ABCD边AB，CD分别为两圆的弦，当矩形ABCD面积取最大值时，矩形ABCD的周长是．三、简答题（共4小题，满分50分）12．（12分）九年级（1）、（2）、（3）班各派4名代表参加射击比赛，每队每人打两枪，射中内环得50分，射中中环得35分，射中外环得25分，脱靶得0分．统计比赛结果，（1）班8枪全中，（2）班1枪脱靶，（3）班2枪脱靶，但三个班的积分完全相同，都是255分．请将三个班分别射中内环、中环、外环的次数填入下表并简要说明理由：班级内环中环外环（1）班（2）班（3）班13．（12分）设二次函数y=ax2+bx+c的开口向下，顶点落在第二象限．（1）确定a，b，b2﹣4ac的符号，简述理由．（2）若此二次函数图象经过原点，且顶点在直线x+y=0上，顶点与原点的距离为3，求抛物线的解析式．14．（12分）如图，四边形ABCD为圆内接四边形，对角线AC、BD交于点E，延长DA、CB交于点F，且∠CAD=60°，DC=DE．求证：（1）AB=AF；（2）A为△BEF的外心（即△BEF外接圆的圆心）．15．（14分）在平面直角坐标中，边长为1的正方形OABC的两顶点A、C分别在y轴、x轴的正半轴上，点O在原点．现将正方形OABC绕O点顺时针旋转，当A点第一次落在直线y=x上时停止旋转．旋转过程中，AB边交直线y=x 于点M，BC边交x轴于点N（如图1）．（1）求边AB在旋转过程中所扫过的面积；（2）设△MBN的周长为p，在旋转正方形OABC的过程中，p值是否有变化？请证明你的结论；（3）设MN=m，当m为何值时△OMN的面积最小，最小值是多少？并直接写出此时△BMN内切圆的半径．2020年黄冈中学自主招生（理科实验班）预录考试数学模拟试题五参考答案与试题解析一、选择题（共5小题，每题4分，满分20分）1．（4分）下列图中阴影部分面积与算式|﹣|+（）2+2﹣1的结果相同的是（）A．B．C．D．【分析】先把算式的值求出，然后根据函数的性质分别求出四个图中的阴影部分面积，看是否与算式的值相同，如相同，则是要选的选项．【解答】解：原式=++==．A、作TE⊥X轴，TG⊥Y轴，易得，△GTF≌△ETD，故阴影部分面积为1×1=1；B、当x=1时，y=3，阴影部分面积1×3×=；C、当y=0时，x=±1，当x=0时，y=﹣1．阴影部分面积为[1﹣（﹣1）]×1×=1；D、阴影部分面积为xy=×2=1．故选B．【点评】解答A时运用了全等三角形的性质，B、C、D都运用了函数图象和坐标的关系，转化为三角形的面积公式来解答．2．（4分）如图，∠ACB=60°，半径为2的⊙O切BC于点C，若将⊙O在CB上向右滚动，则当滚动到⊙O与CA也相切时，圆心O移动的水平距离为（）A．2πB．4πC．2D．4【分析】连接O′C，O′B，O′D，OO′，则O′D⊥BC．因为O′D=O′B，O′C平分∠ACB，可得∠O′CB=∠ACB=×60°=30°，由勾股定理得BC=2．【解答】解：当滚动到⊙O′与CA也相切时，切点为D，连接O′C，O′B，O′D，OO′，∵O′D⊥AC，∴O′D=O′B．∵O′C平分∠ACB，∴∠O′CB=∠ACB=×60°=30°．∵O′C=2O′B=2×2=4，∴BC===2．故选：C．【点评】此题主要考查切线及角平分线的性质，勾股定理等知识点，属中等难度题．3．（4分）如果多项式x2+px+12可以分解成两个一次因式的积，那么整数p的值可取多少个（）A．4 B．5 C．6 D．8【分析】先把12分成2个因数的积的形式，共有6总情况，所以对应的p值也有6种情况．【解答】解：设12可分成m•n，则p=m+n（m，n同号），∵m=±1，±2，±3，n=±12，±6，±4，∴p=±13，±8，±7，共6个值．故选C．【点评】主要考查了分解因式的定义，要熟知二次三项式的一般形式与分解因式之间的关系：x2+（m+n）x+mn=（x+m）（x+n），即常数项与一次项系数之间的等量关系．4．（4分）小明、小林和小颖共解出100道数学题，每人都解出了其中的60道，如果将其中只有1人解出的题叫做难题，2人解出的题叫做中档题，3人都解出的题叫做容易题，那么难题比容易题多多少道（）A．15 B．20 C．25 D．30【分析】设容易题有x道，中档题有y道，难题有z道，然后根据题目数量和三人解答的题目数量列出方程组，然后根据系数的特点整理即可得解．【解答】解：设容易题有x道，中档题有y道，难题有z道，由题意得，，①×2﹣②得，z﹣x=20，所以，难题比容易题多20道．故选B．【点评】此类题注意运用方程的知识进行求解，观察系数的特点巧妙求解更简便．5．（4分）已知BD是△ABC的中线，AC=6，且∠ADB=45°，∠C=30°，则AB=（）A．B．2C．3D．6【分析】根据题中所给的条件，在直角三角形中解题．根据角的正切值与三角形边的关系，结合勾股定理求解．【解答】解：过点B作BE⊥AC交AC于点E．如下图设BE=x，∵∠BDA=45°，∠C=30°，∴DE=x，BC=2x，∵tan∠C=，∴=tan30°，∴3x=（3+x），解得x=，在Rt△ABE中，AE=DE﹣AD=﹣3=，由勾股定理得：AB2=BE2+AE2，AB==3．故选C．【点评】本题考查了解直角三角形中三角函数的应用，要熟练掌握好边角之间的关系．二、填空题（共6题，每小题5分，满分30分）6．（5分）满足方程|x+2|+|x﹣3|=5的x的取值范围是﹣2≤x≤3．【分析】分别讨论①x≥3，②﹣2＜x＜3，③x≤﹣2，根据x的范围去掉绝对值，解出x，综合三种情况可得出x的最终范围．【解答】解：从三种情况考虑：第一种：当x≥3时，原方程就可化简为：x+2+x﹣3=5，解得：x=3；第二种：当﹣2＜x＜3时，原方程就可化简为：x+2﹣x+3=5，恒成立；第三种：当x≤﹣2时，原方程就可化简为：﹣x﹣2+3﹣x=5，解得：x=﹣2；所以x的取值范围是：﹣2≤x≤3．【点评】解一元一次方程，注意最后的解可以联合起来，难度很大．7．（5分）已知三个非负实数a，b，c满足：3a+2b+c=5和2a+b﹣3c=1，若m=3a+b ﹣7c，则m的最小值为﹣．【分析】解方程组，用含m的式子表示出a，b，c的值，根据a≥0，b≥0，c≥0，求得m的取值范围而求得m的最小值．【解答】解：由题意可得，解得a=﹣3，b=7﹣，c=，由于a，b，c是三个非负实数，∴a≥0，b≥0，c≥0，∴﹣≥m≥﹣．=﹣．所以m最小值故本题答案为：﹣．【点评】本题考查了三元一次方程组和一元一次不等式的解法．8．（5分）如图所示，设M是△ABC的重心，过M的直线分别交边AB，AC 于P，Q两点，且=m，=n，则+=1．【分析】根据三角形的重心是三角形三条中线的交点，且重心到顶点的距离是它到对边中点的距离的2倍．可以分别过点B，C作BE∥AD，CF∥AD，交PQ 于点E，F，根据平行线等分线段定理和梯形中位线定理可得到两个等式，代入所求代数式整理即可得到答案．【解答】解：分别过点B，C作BE∥AD，CF∥AD，交PQ于点E，F，则BE ∥AD∥CF，∵点D是BC的中点，∴MD是梯形的中位线，∴BE+CF=2MD，∴+==+===1．【点评】此题考查了重心的概念和性质，能够熟练运用平行线分线段成比例定理、平行线等分线段定理以及梯形的中位线定理．9．（5分）在平面直角坐标系中，横坐标与纵坐标都是整数的点（x，y）称为整点，如果将二次函数的图象与x轴所围成的封闭图形染成红色，则此红色区域内部及其边界上的整点个数有25个．【分析】找到函数图象与x轴的交点，那么就找到了相应的x的整数值，代入函数求得y的值，那么就求得了y的范围．【解答】解：将该二次函数化简得，y=﹣[（x﹣4）2﹣]，令y=0得，x=或．则在红色区域内部及其边界上的整点为（2，0），（3，0），（4，0），（5，0），（6，0），（2，1），（2，2），（3，1），（3，2），（3，3），（3，4），（3，5），（4，1），（4，2），（4，3），（4，4），（4，5），（4，6），（5，1），（5，2），（5，3），（5，4），（5，5），（6，1），（6，2）共25个，故答案为：25．【点评】本题涉及二次函数的图象性质，解决本题的关键是得到相对应的x的值．10．（5分）如图所示：在平面直角坐标系中，△OCB的外接圆与y轴交于A （0，），∠OCB=60°，∠COB=45°，则OC=1+．【分析】连接AB，由圆周角定理知AB必过圆心M，Rt△ABO中，易知∠BAO=∠OCB=60°，已知了OA=，即可求得OB的长；过B作BD⊥OC，通过解直角三角形即可求得OD、BD、CD的长，进而由OC=OD+CD求出OC的长．【解答】解：连接AB，则AB为⊙M的直径．Rt△ABO中，∠BAO=∠OCB=60°，∴OB=OA=×=．过B作BD⊥OC于D．Rt△OBD中，∠COB=45°，则OD=BD=OB=．Rt△BCD中，∠OCB=60°，则CD=BD=1．∴OC=CD+OD=1+．故答案为：1+．【点评】此题主要考查了圆周角定理及解直角三角形的综合应用能力，能够正确的构建出与已知和所求相关的直角三角形是解答此题的关键．11．（5分）如图所示：两个同心圆，半径分别是和，矩形ABCD边AB，CD分别为两圆的弦，当矩形ABCD面积取最大值时，矩形ABCD的周长是16+12．【分析】此题首先能够把问题转化到三角形中进行分析．根据锐角三角函数的概念可以证明三角形的面积等于相邻两边的乘积乘以夹角的正弦值，根据这一公式分析面积的最大值的情况．然后运用勾股定理以及直角三角形的斜边上的高等于两条直角边的乘积除以斜边求得长方形的长和宽，进一步求得其周长．【解答】解：连接OA，OD，作OP⊥AB于P，OM⊥AD于M，ON⊥CD于N．根据矩形的面积以及三角形的面积公式发现：矩形的面积是三角形AOD的面积的4倍．因为OA，OD的长是定值，则∠AOD的正弦值最大时，三角形的面积最大，即∠AOD=90°，则AD=6，根据三角形的面积公式求得OM=4，即AB=8．则矩形ABCD的周长是16+12．【点评】本题考查的是矩形的定理以及垂径的性质，考生应注意运用勾股定理来求得边长继而才能求出周长．三、简答题（共4小题，满分50分）12．（12分）九年级（1）、（2）、（3）班各派4名代表参加射击比赛，每队每人打两枪，射中内环得50分，射中中环得35分，射中外环得25分，脱靶得0分．统计比赛结果，（1）班8枪全中，（2）班1枪脱靶，（3）班2枪脱靶，但三个班的积分完全相同，都是255分．请将三个班分别射中内环、中环、外环的次数填入下表并简要说明理由：班级内环中环外环（1）班（2）班（3）班【分析】本题可以通过设出内环、中环、外环射中的枪数为x，y，z；设脱靶数为t，根据等量关系“总得分=内环得分+中环得分+外环得分”列出函数方程进行分析，从而确定出各中枪数．【解答】解：填表如下：班级内环中环外环（1）班134（2）班232（3）班330理由如下：可设t枪脱靶，x枪射中内环，y枪射中中环，则有（8﹣x﹣y﹣t）枪射中外环，所以50x+35y+25（8﹣x﹣y﹣t）=255化简得y=5+2（t﹣x）+（1+t﹣x）对于（1）班，t=0，y=5﹣2x+（1﹣x），x为奇数，只能取x=1，得y=3；对于（2）班，t=1，y=7﹣2x+（2﹣x），x为偶数，只能取x=2，得y=3；对于（3）班，t=2，y=9﹣2x+（3﹣x），x为奇数，只能取x=3，得y=3；【点评】此题考查的是学生对函数方程的分析讨论并对某些值确定，同学们要注意细心分析．13．（12分）设二次函数y=ax2+bx+c的开口向下，顶点落在第二象限．（1）确定a，b，b2﹣4ac的符号，简述理由．（2）若此二次函数图象经过原点，且顶点在直线x+y=0上，顶点与原点的距离为3，求抛物线的解析式．【分析】（1）根据抛物线的开口向下判断a的符号，再根据第二象限点的坐标特点及二次函数的顶点坐标列出不等式组，确定出解答a，b，b2﹣4ac的符号即可．（2）根据抛物线过原点及顶点在直线x+y=0上求出其顶点坐标及一次项系数，再根据顶点与原点的距离为3求出二次项系数，进而求出其解析式．【解答】解：（1）∵抛物线开口向下，∴a＜0；∵顶点在第二象限，∴，∴b＜0，b2﹣4ac＞0．（2）由题意可得c=0，此时顶点坐标为（﹣，﹣），因顶点在直线x+y=0上，所以﹣﹣=0，b=﹣2．此时顶点坐标为（，﹣），由+=18，a=﹣，则抛物线的解析式为y=﹣x2﹣2x．【点评】本题考查的是二次函数的图象与系数的关系及用待定系数法求二次函数的解析式，掌握二次函数的特点是解题的关键．14．（12分）如图，四边形ABCD为圆内接四边形，对角线AC、BD交于点E，延长DA、CB交于点F，且∠CAD=60°，DC=DE．求证：（1）AB=AF；（2）A为△BEF的外心（即△BEF外接圆的圆心）．【分析】（1）根据圆内接四边形的性质和三角形的内角和定理进行证明；（2）根据三角形的外心到三角形的三个顶点的距离相等的性质只需证明AB=AF=AE，根据等腰三角形的性质和判定进行证明．【解答】证明：（1）∠ABF=∠ADC=120°﹣∠ACD=120°﹣∠DEC=120°﹣（60°+∠ADE）=60°﹣∠ADE，（4分）而∠F=60°﹣∠ACF，（6分）因为∠ACF=∠ADE，（7分）所以∠ABF=∠F，所以AB=AF．（8分）（2）四边形ABCD内接于圆，所以∠ABD=∠ACD，（10分）又DE=DC，所以∠DCE=∠DEC=∠AEB，（12分）所以∠ABD=∠AEB，所以AB=AE．（14分）∵AB=AF，∴AB=AF=AE，即A是三角形BEF的外心．（16分）【点评】综合运用了圆内接四边形的性质、三角形的内角和定理以及三角形的外心的性质．15．（14分）在平面直角坐标中，边长为1的正方形OABC的两顶点A、C分别在y轴、x轴的正半轴上，点O在原点．现将正方形OABC绕O点顺时针旋转，当A点第一次落在直线y=x上时停止旋转．旋转过程中，AB边交直线y=x 于点M，BC边交x轴于点N（如图1）．（1）求边AB在旋转过程中所扫过的面积；（2）设△MBN的周长为p，在旋转正方形OABC的过程中，p值是否有变化？请证明你的结论；（3）设MN=m，当m为何值时△OMN的面积最小，最小值是多少？并直接写出此时△BMN内切圆的半径．【分析】（1）S阴=S△OAB+S扇形OBB′﹣S△OAA′﹣S扇形OAA′，根据公式即可求解．（2）延长BA交y轴于E点，可以证明：△OAE≌△OCN，△OME≌△OMN 证得：OE=ON，AE=CN，MN=ME=AM+AE=AM+CN．从而求得：P=MN+BN+BM=AM+CN+BN+BM=AB+BC=2．即可求解．（3）Rt△BMN中，BM2+BN2=MN2，所以（1﹣n）2+（1﹣m+n）2=m2⇒m2﹣mn+2﹣m=0．把这个方程看作关于n的方程，根据一元二次方程有解得条件，即可求得．【解答】解：（1）如图，S阴=S△OAB+S扇形OBB'﹣S△OA'B′﹣S扇形OAA'=S扇形OBB′﹣S扇形OAA′=π﹣π×12=（2）p值无变化证明：延长BA交y轴于E点，在△OAE与△OCN中，∴△OAE≌△OCN（AAS）∴OE=ON，AE=CN在△OME与△OMN中，∴△OME≌△OMN（SAS）∴MN=ME=AM+AE=AM+CN∴P=MN+BN+BM=AM+CN+BN+BM=AB+BC=2；（3）设AM=n，则BM=1﹣n，CN=m﹣n，BN=1﹣m+n，∵△OME≌△OMN，=S△MOE=OA×EM=m∴S△MON在Rt△BMN中，BM2+BN2=MN2∴（1﹣n）2+（1﹣m+n）2=m2⇒n2﹣mn+1﹣m=0∴△=m2﹣4（1﹣m）≥0⇒m≥2﹣2或m≤﹣2﹣2，∴当m=2﹣2时，△OMN的面积最小，为﹣1．此时n=﹣1，则BM=1﹣n=2﹣，BN=1﹣m+n=2﹣，∴Rt△BMN的内切圆半径为=3﹣2．【点评】本题综合运用了扇形的面积公式，全等三角形的判定，三角形的面积公式以及勾股定理的综合应用，难度较大．。
2024届北京市东城区高三下学期英语模拟试题(一模)含答案
2024届北京市东城区高三下学期英语模拟试题（一模）本试卷共12页，共100分。
考试时长90分钟。
考生务必将答案答在答题卡上，在试卷上作答无效。
考试结束后，将本试卷和答题卡一并交回。
第一部分知识运用(共两节，30分)第一节(共10小题；每小题1.5分，共15分)阅读下面短文，掌握其大意，从每题所给的A、B 、C 、D四个选项中，选出最佳选项并在答题卡上将该项涂黑。
I hadn't seen Anne in nearly 20 years since college,yet we could still party like old times.It was great to have her here, 1 our lives.yard.Ijob.Iting at the few blooms(花)left in my yard.I hadn't planted much after losing my job.It had been a 2 me.Justor me.Just when I thought I was done with thebitterness,it would all come rushing back and the 3 thing on my mind was flowers.“One of my hobbies is taking photos of 4 season.Iaid and steadied herself near the last rose of the season.I shrugged(耸肩),wondering why anyone would. 5 taking timeto look at a lowly rose.Suddenly a hot song rang from her cell phone."I set it to remind me to take my medicine,”she said calmly.“An 6 for medicine?"I laughed.“Are we that old?”softly.Thatrain,”she smiled.“I have been diagnosed with a rare cancer,a small tumor (肿块)no bigger than your fingernail,”she laughed softly.That was Anne—ever 7 .Even cancer was no more than joking about.So 8 that I was beyond words.Later next day,an e-mail filled with the flower photos popped up from Anne—clear beautiful.Shebeautiful.She had gotten past the anger,the pity and unfairness,taking one momentat a time and polishing it until it 9 .I shifted my eye to outside,and I had her flowers in full bloom.Actually,I always had them,but it was Anne who got me to really 10 them.1.A.saving B.watching C.sharing D.controlling2.A.normal B.new C.satisfying D.difficultst B.same C.only D.right4.A.yards B.flowers C.parties D.people5.A.bother B.avoid C.miss D.stop6.A.award B.order C.alarm D.idea7.A.optimistic B.attractive C.hard-working D.confident8.A.nervous B.shocked C.relaxed D.lucky9.A.ended B.failed C.shined D.fruited10.A.arrange B.trust C.colour D.appreciate第二节语法填空(共10小题；每小题1.5分，共15分)阅读下列短文，根据短文内容填空。
2020年黄冈中学自主招生(理科实验班)预录考试数学模拟试题六及答案解析(pdf版 )
19．（15 分）某家电生产企业根据市场调查分析，决定调整产品生产方案，准备每周（按
120 个工时计算）生产空调器、彩电、冰箱共 360 台，且冰箱至少生产 60 台，已知生产
这些家电产品每台所需工时和每台产值如下表：
家电名称 空调
彩电
冰箱
工时
产值（千元） 4
3
2
问每周应生产空调器、彩电、冰箱各多少台，才能使产值最高最高产值是多少？（以千
14．解：如图，由勾股定理易得 AC=15，设 AC 的中点为 E，折线 FG 与 AB 交于 F，（折 线垂直平分对角线 AC），AE=7.5． ∵∠AEF=∴==．
∴EF=
．
∴折线长=2EF= ．
故答案为 ．
15．解：由方程 x2﹣3x+2=0 解方程的两个根是 1，2，即 a=1，b=2 故这组数据是 3，1，4，2，5
∴Px2007=
．
而 Qx2007（即 Px2007）在 y= 上，所以 Qy2007=
=
=
，
∴|P2007Q2007|=|Py2007﹣Qy2007|=|4013﹣
|=
．
故答案为： ．
13．解：∵图中扇形的弧长是 2π，根据弧长公式得到 2π= ∴n=120°即扇形的圆心角是 120° ∴弧所对的弦长是 2×3sin60°=3
，
故可得△ENK≌△EML，即阴影部分的面积始终等于正方形面积的 ． 故选 B．
4．解：设一支铅笔、一本练习本和一支圆珠笔的单价分别为 x、y 和 z 元，
根据题意得：
，
②﹣①得：x+3y=1.05③， ①﹣3③可得：2y=z， 故可得：x+y+2y=x+y+z=1.05． 故选 B． 5．解：方法 1、∵方程有两个不相等的实数根， 则△＞0， ∴（a+2）2﹣4a×9a=﹣35a2+4a+4＞0， 解得﹣ ＜a＜ ，
专四模拟试题附参考答案（2020年整理）.doc
专四模拟试题附参考答案（2020年整理）.doc专四模拟试题附参考答案（1）Part III Decide which of the choices given below would best complete the passage if inserted in the corresponding blanks. Mark the best choice for each blank on your answer sheet.The “standard of living” of any country means the average pe rson's share of the goods and services the country produces. A country's standard of living, ____31_______, depends first and 32 on its capacity to produce wealth. “Wealth” in this sense is not money, for we do not live on money 33 on things that money can buy: “goods” such as food and clothing, and “services”such as transport and “__34 __ ” .A country's capacity to produce wealth depends upon many factors, most of 35 have an effect on one another. Wealth depends 36 a great extent upon a country's natural resources. Some regions of the world are well supplied with coal and minerals, and have a fertile soil and a 37 climate; other regions possess none of them.Next to natural resources 38 the ability to turn them to use. China is perhaps as well 39 as the USA in natural resources, but suffered for many years from civiland 40 wars, and 41 this and other reasons was 42 to develop herresources. 43 and stable political conditions,and 44 _____ from foreign invasion, enable a country to develop its natural resources peacefully and steadily, and to produce more wealth than another country equallywell 45 by nature but less well ordered.A country's standard of living does not only depend upon the wealth that is produced and consumed 46 it own borders, but also upon what is indirectly produced through internationaltrade. 47 Britain's wealth in foodstuffs and other agricultural products would be much less if she had to depend onlyon 48 _ grown at home. Trade makes it possible for her surplus manufactured goods to be traded abroad for the agricultural products that would 49 be lacking. A country’s wealth is, therefore, much influenced by its manufacturingcapacity, 50 that other countries can be found ready to accept its manufactures.31. A. however B. therefore C. nevertheless D. furthermore32. A. primary B. principal C. foremost D. uniquely33. A. or B. nor C. but D. except34. A. recreation B. enlightenment C. refreshment D. entertainment35. A. if B. them C.which D. that36. A. with B. for C.to D. on37. A. neutral B. favorable C.virtuous D. marine38. A. comes B. come C.coming D. came39. A. off B. known C.done D. furnished40. A. military B. external C.contemporary D. domestic41. A. for B. because C. because of D. due to42. A. Impossible B. Incapable C. unable D. proficient43. A. Strong B. Sturdy C. Sound D. Robust44. A. liberty B. freedom C.prevention D. liberation45. A .assisted B. avenged C.rescued D. served46. A. with B. within C. near D.without47. A. In short B. For example C. firstly D.On one hand48. A. those B. what C. that D. it49. A. likely B. likewise C. certainly D.otherwise50. A. provided B. depended C. given D.supposedPART IV GRAMMAR & VOCABULARY [15 MIN]There are thirty sentences in this section. Beneath each sentence thereare four words or phrases marked A, B, C and D. Choose one word or phrase that best completes the sentence.Mark your answers on your answer sheet.51. We often advise him not to drink more wine __________is good for his health.A. asB. thanC.that D. but52. It is necessary that an efficient worker __________his work on time.A. accomplishesB. can accomplishC. accomplishD. has accomplished53. My father will be here tomorrow, but at first I thought that he__________ today.A. was comingB. is comingC. will comeD. come54. Without facts, we cannot form a worthwhile opinion for we need to havefactual knowledge __________ our thinking.A which to be based on B. which to be base uponC. upon which to baseD. to which to be based55. I didn't call to make my airline reservation, but I __________.A. should haveB. may haveC. must haveD. shall have56. It’s the first time that she has been to the United States,__________?A. isn't sheB. hasn't sheC. isn't itD. hasn't it57. I think that the labor bill will pass; it's ____________that it will.A. almost surelyB. very likelyC. near positiveD. quite certainly58. An increase in a nation's money supply, without an accompanying increase in economic activity, __________result in higher prices.A. tendsB. tends theC. tending toD. will tend to59. X-rays are able to pass through objects and thus make__________details that are otherwise impossible to observe.A. it visibleB. visiblyD. they are visible60. Prices for bikes at that store run__________250 dollars.A. as high asB. as high toC. so high toD. so high as61. He will not be __________ to vote in this year's election.A. enough oldB. as old enoughC. old enoughD. enough old as62. Thomas Jefferson's achievements as an architect rival his contributions __________a politician.A. suchB. moreC. asD. than63. According to the conditions of my scholarship, after finishing my degree__________.A. my education will be employed by the universityB. employment will be given to me by the universityC. the university will employ meD. I will be employed by the university64. If Bob's wife won't agree to sign the papers, ____________.A. neither he willB. neither will heC. neither won't heD. he won't neither65. _____ is generally accepted, economic growth is determined by the smooth development of production.A. WhatB. ThatC. ItD. As66. A violent revolution having broken out, all the ports of that country were laid under a(n) ______.A. boycottB. embargoD. ban67. Since_________ can't work in the United States without a permit, so it is of great importance for them to present their credentials to the government.A. emigrantsB. expatriatesC.migrants D. immigrants68. Most investors are taught at the very beginning that there is no place for __________in investment markets.A. feelingB. emotionC. passionD. sentiment69. I__________ my ordinary income by doing some part-time work.A. complimentB. ComplementC. supplementD. implement70. Before the statue could be __________to the United States, a site had to be found for it and a pedestal had to be built.A. transformedB.transportedC. transferredD. transmitted71. The final document was, of course, supposed to mend the damage__________upon the world by the war,A. imposedB. impressedC.compelled D. compressed72. Roger, who __________in courage, is highly respected by all his peers in the villages.A. boundsB. possessesC.declares D. abounds73. The tourists are told that the remotest village in this area is only_________ by a river.B. availableC.obtainable D. achievable74. He__________ interrupted me by asking irrelevant questions.A. continuallyB. continuouslyC.consistently D. constantly75. Being a man of _________ and public spirit. Mr. Russell labored zealously to advance the interest of the community and was much interested in bringing new manufacturing interests to Waterloo.A. firmB. enterpriseC. companyD. corporation76. When people do things wrong we should try hard to forgive them, as the idiom goes, “To ______ is human.”A. referB. conferC. deferD. err77. Although gaining a job as a real __________agent or broker may be relatively easy, beginning agents and brokers may face competition from well-established, more experienced ones.A. propertyB. estateC. houseD. assets78. The constitution of the State required that property should be__________for taxation at its market value.A. estimatedB. appraisedC.evaluated D. valued79. On June 15, 1909, after Scott finished his rushed plans for his________ to the South Pole, he departed from England.A. tourB. voyageC. expedition80. The government authority had to __________oil and other products so that it would not run out during war.A. shareB. fareC.provide D. rationPART V READINGCOMPREHENSION[25 MIN]In this section there are four passages followed by questions or unfinished statements, each with four suggested answers marked A, B, C and D. Choose the one that you think is the best answer.Mark your answers on your answer sheet.TEXT AAll Sir William Jones wanted to do was to learn Sanskrit. While he was studying, however, he made a surprising discovery. This ancient language of India was amazingly similar to Latin and Greek. The Sanskrit word for "mother"—matar—was almost identical to the Latin word, mater. “Father” was pitar in Sanskrit, pater in Latin and Greek. The more he studied, the more similarities he found.How could this be? Thousands of miles and many natural barriers separated India and Europe. Still, Jones concluded, the similarities were too strong to be accidental. In 1786, he announced “No one could examine them all three, without believing them to have sprung from some common source.”Since then, scholars have traced many languages to this “common source.” Today, these languages are called the Indo-European family. But where did this source originate? Language and geography provide the clues. European languages have similar words for the animals and trees of northern Europe, such as oak, willow, bear, and wolf. There are no common words for the animals and trees of southern Europe.To scholars, this suggests that the Indo-European languages began in north central Europe. In time, some northern Europeans set out toward the east, settling in Iran, India, and Pakistan. Others migrated westward toward southern and western Europe. The root language developed into dozens of different languages, but the family resemblances remain. The word for “three” is drei in German, tres in Spanish, tre in Albanian, and tri in Russian.Almost every language in Europe is part of the Indo-European family, but there are exceptions. Hungarian and Finnish cling to other language families. High in the Pyrenees, the Basque people speak a language that has no known relatives. Perhaps the Basques were the original inhabitants of the region. Isolated by mountains, they may have been bypassed by the spread of Indo-European culture.81. What did Sir William Jones discover when he was learning Sanskrit?A. Sanskrit was very similar to some European languages.B. Sanskrit was an ancient language.C. The Sanskrit word for mother is the same as that in Latin.D. Latin and Greek were very similar.82. Which of the following statements is true about "the common source"?A. Jones found out the common source.B. All languages sprang from the common source.C. Only three languages sprang from the common source.D. Since 1786, scholars have traced many languages to the common source.83. Where did the common source originate?A. In southernEurope.B. In north-central Europe.C. InIndia.D. in Pakistan.84. What can be concluded from the passage?A. Jones first discovered the root language.B. The languages with the common source are called the Indo-European family.C. The root language developed into different languages as people migrated.D. Every language in Europe is part of the Indo-European family. TEXT BYour first culture shock came after you left your home country and you needed to adjust to the United States, It is now important to learn cultural information about your company, so that you will fit in and perform successfully. The people who make up this environment have their own customs, habits and expectations of each new employee. Gathering information that is formal (policy) and informal (traditions) will help you learn the professional norms and become fully accepted. Policies are corporate documents describing procedures, rules, and standards that guide decision making and conduct. They are similar to official laws that govern a country. Some sources of such written company information include the annual report, product or service brochures, technical and procedural manual, employee directory and the company newsletter. Organizational traditions are usually unwritten hut common practices that have evolved over time. They set the tone and philosophy of the particular corporation, just as the customs of a country do. The best way to learn such information is to observe and talk with others such as your supervisor and co-workers.You can supplement ideas from formal introductory materials given you earlier. Explore with fellow employees those behaviors that may be tolerated but frowned upon. Ask your supervisor for feedback to avoidtypical traps that could cause your co-workers to reject you as a professional. Keep this guide nearby, and refer to it often in private. Reviewing formal company procedures, handouts, written notes, ideas, comments from bosses and colleagues, together with materials in this handbook, will help you make a more healthy cultural adjustment.85. What is the purpose to learn cultural information?A. To know the U. S. A. better.B. To work better in the new environment.C. To make more money.D. To improve one's English.86. According to the passage, ___________ is not the policy's function.A. describing procedures, rules and standardsB. governing a countryC. helping to guide decision making and conductD. writing down the company's information87. ____________ is the best way to learn the organizational traditions.A. To read the policiesB. To study the philosophyC. To study a country's customsD. To observe and communicate with the colleagues and boss.88. How to make a more healthy cultural adjustment?A. Read this passage often.B. Discuss the organizational culture with your colleagues.C. Gather and review the formal and informal information in the corporation.D. Ask your boss for help.89. The passage is written to ___________.A. help readers to understand the organization's cultureB. explain the culture shockC. analyze the policies and traditionsD. help readers to work better with their supervisor and co-workersTEXT C“White hostility toward African Americans, and the resulting discrimination, have been fueled by a sense of threat. During slavery, many working-class whites, encouraged by slaveholders, feared the release of large numbers of blacks into the labor market and society in general. When northern industries used African Americans as strikebreakers in the first decades of this century, white workers feared the loss of their jobs. Today, many white Americans fear “black violence”. Moreover, specific fears about the “costs” of welfare as well as the "taking" of jobs through affirmative action have added to the fear of black violence.These fears have translated into negative stereotypes of African Americans as a people who are prone to crime and violence, unwilling to work, and a drain on the white taxpayer through their welfare dependency. In turn, these stereotypes have been used to justify informal discrimination, to prevent the help to the urban poor, to be negligent in enforcing laws or policies prohibiting discriminatory practices against black workers, and most important, to hesitate in making a serious effort at job creation for African Americans. The result is that African Americans’ share of valued resources has not increased much over the last two decades, even as formal discrimination has been greatly lessened. This fact is used to further the negative belief that African Americans have "not taken advantage of their equal opportunities."90. According to the passage, how did the northern industries make use of African Americans in 1900s?A. Sent them to ask the strikers to go back to work.B. Made them work very hard.C. Employed them to threaten the white strikers.D. Released them into the labor market.91. What is the ill influence of these negative stereotypes?A. Giving help to the poor black.B. Justifying informal discrimination.C. Enforcing laws prohibiting discriminatory practices against black workers.D. Creating opportunities of employment for the black.92. What can be inferred from "a drain on the white taxpayer" about the African Americans?A. They are unwilling to work.B. They never pay tax.C. They lack security.D. Their welfare depends on the white's tax.93. The author wrote the passage to tell us__________.A. African Americans pose a threat to the whites in employmentB. African Americans are dependent on the tax paid by the whitesC. African Americans are discriminated against because they are often on strikeD. the sense of threat intensifies the white's hospitality and discrimination against the African AmericansTEXT D“People thought of themselves as having rights from companies,” said Hoshua Freeman, a labor historian at Columbia University. That sense of entitlement grew even stronger in the early decades after World War II and collective bargaining became the arena for arguing out wages, pensions, health insurance, vacations, hours and job security.That system is disappearing today. Career-long attachments to one employer, a notion born in the 1920's, are no longer the .norm. The newclass-consciousness makes less distinction between workers and managers. Rights are relative, at best. An increasingly conservative electorate has reduced government's role in regulating the economy. Unions have lost influence and membership.What people do is try to cope, by themselves, said Ms. Skelly, of DYG. Self-employment is one solution, DYG's polls show, and that is a rising trend. "They try, on the job, to hide any weakness in their performance," she said. “They work longer hours and take work home, without letting the boss know, to give the impression that they can do difficult tasks quickly. There is nothing like, ‘we are all in this together.’ There is too much competition. People talk of their weakness to friends and spouses, but not to coworkers.”And many Americans feel in their hearts that the unemployment might be justified. “There is a sense among people that we are inefficient and bloated,” Ms. Skelly said. “And until they feel that is no longer true, they are reluctant to criticize the forces that are cutting out the fat and the inefficiencies.”94. It can be inferred from the second paragraph that ___________.A. people do not enjoy their rights nowadaysB. people are more likely to change their jobs than they were in the 1920'sC. workers and managers share the same rights todayD. nowadays, people refuse to take part in the Union95. According to Ms Skelly, which of the following is true?A. People like to work overtime.B. People want to work at home.C. People want to impress the boss with their capability and efficiency.D. People need help from their families, for they cannot cope with difficult problems themselves.96. People hide their weakness from___________.A. their parentsB. their wives or husbandsC. their friendsD. their colleagues97. The main idea of the passage is___________.A. people thought of themselves as having rights from companiesB. people's sense of entitlement is not as strong as it used to beC. people work at homeD. people regard unemployment as usualTEXT EYou may not have thought of it just this way, but the letter you write is part of you, and expression of your personality. Therefore to write letters that are mere patterns of form is to present a colorless personality.Letters, by their very nature, are too individual to be standardized. A letter may be absolutely perfect according to the standards of good taste and good form; but unless it also expresses something of the writer's personality, it is not a good letter.In other words, don't be satisfied to write letters that are just correct and nothing more. Try to write letters that are correct for you... letters that are warm and alive with reflections of your own personality.And if this sounds like a platitude (陈词滥调), stop for a moment and think back over your recent correspondence. What was the most interesting letter you received? Was it a letter anyone could have written? Or was it a letter that instantly “came alive” as you read it—that brought the personality of the sender right into the room with you. as though you were face to face, listening instead of reading?The fault with too many letters, today as in the past—the reason so many letters are dull and lifeless, and often fail to accomplish the purpose for which they are written is simply this: They sound exactly like the letters everyone else writes. They are neither exciting to receive nor stimulating to read.98. What does the author mean by saying “the letter you write is part of you”?A. Writing letters plays an important part in your life.B. When you write letters, you should be careful about what to write.C. People can see your personality from the letters you write.D. You should write good letters.99. What does the author want to explain in the fourth paragraph?A. A good letter presents one's personality.B. His opinion is a platitude.C. Letter-writing is interesting.D. Talking face to face is a better way to communicate than writing letters.100. The best title for the passage is___________.A. Letter WritingB. Personality in Letter WritingC. To Write Interesting LettersD. To Write Correct Letters PARTVI WRITING[45 MIN]SECTIONA COMPOSITION[35 MIN]We all know that men and women play different roles in modern society, and that they differ in many ways, such as how to perceive the world, how to tackle problems and how to approach people. Think about the issue and discuss the differentways in which men and women behave in terms of interpersonal relationships, expressing affection, friendship and views on beauty.Write on ANSWER SHEET TWO a composition of about 200 words on the following topic:The Different Approaches or Perceptions of Men and WomenYou are to write in three parts.In the first part, state your view on this issue.In the second part, support your view with details or examples.In the last part, bring what, you have written to a natural conclusion or a summary.Marks will be rewarded for content, organization, grammar and appropriacy. Failure to follow the instructions may result in a loss of marks.SECTIONB NOTE-WRITING[10 MIN]Write on ANSWER SHEET TWO a note of about 50-60 words based on the following situation:You are William or Aileen. You are invited this weekend to a farewell party hosted by your friend, Sandy, who is going abroad for his PhD. Study. However, you are unable to see him off. Write him a note politely declining his invitation and expressing your good wishes to him.Marks will be awarded for content, organization, grammar and appropriateness.参考答案Part III31-35BCCDC 36-40CBAAB 41-45ACCBD 46-50BBADAPart IV51-55BCACA 56-60CBDCA 61-65CCDBD 66-70BDDCB 71-75ADAAB 76-80DBBCDPart V81-84ADBC 85-89BBDCB 90-93CBDD 94-97BCDB 98-100CAB。
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CD 难点：表述为***的专利文献，这里的 ***为专利名称，
应限定在标题字段中检索。
多选题(检索题) 在万方数据库中检索 2009-2010 年题名中包含“网络安全”的文献，下列说法正确的是：
学海无涯
检索结果中工业技术学科分类的文献最多 检索结果中大多是期刊论文 检 索 结
利用高级检索途径在 Ebsco 全部库中查找 ISSN: 1873-2933 作者 Lapenna D 发表的文献为：
Serum albumin and biomolecular oxidative damage of human atherosclerotic plaques
Effect of non-genetic factors on paraoxonase 1 activity in patients undergoing hemodialysis.
正、漆亮等人撰写
B 关键：没有指定检索工具，需要选定收录中文期刊的检索工
具进行尝试。
多选题(检索题)
专利名称“可悬挂气球鞭炮串”，以下检索结果正确的是： 申请日：2002-01-08 这 是 一
篇发明专利 这是一篇非职务发明专利 保护期限到 2022 年 1 月
AC 难点：使用专
利名称字段检索
单选题 EBCSO 数据库中检索有关“填充型电磁屏蔽复合材料研究进展”的文献，合理的检索式为
出的相关文献量。本题目不够严谨，无法计算实际的 C，因为不知道两人检出的相关文献间
的交叉情况如何，同学们重点掌握 C 的计算方法就可以了。
多选题(检索题) 关于国际专利分类号（IPC）G10K7/06 下列说法正确的是 部--物理 大类--乐器、声学 小 类--钢琴 大组--具有铃、板、棒或管形状的谐振器 ABD 该题是可以通过中国国家知识 产权局的专利检索界面上提供的 IPC 分类检索（见课件）的功能找到答案的。
是非题
截词符可以用在词中或者词尾
对
单选题
下列检索结果最多的检索式是 key word(s) in title: transgen and food key word(s) in title or
abstract: transgene and food key word(s) in title or abstract:transgen* and food* key word(s)
学海无涯
多选题
小张和小王对同一课题在相同的数据库中进行检索，小张共检出 100 篇文献，其中 80 篇相
关，小王检出 150 篇，其中 120 篇相关，数据库中未检出的相关文献为 60 篇下列说法正确
的是 小王的查全率比小张的高 查全率一样高 小王的查准率比小张的高 查 准 率
一样高
CD 难点：查全率如何计算？根据查全率的公式，C=检出的相关文献量+未检
单选题 在中国国家知识产权局中查找罗氏公司申请的专利，最佳检索式为： 罗氏 发明(?设计?)人：罗氏 专利代理机构：罗氏 代理人：罗氏 使用申请人检索字段
申请(专利权)人： A 关键：应
多选题 EBCSO 数据库中，关于检索式 embedded W2 systems，正确的说法是： embedded 和 systems 之间最多间隔 2 个单词 embedded 和 systems 之间必须间隔 2 个单词 embedded 和 systems 前后顺序可以颠倒 embedded 和 systems 前后顺序不能颠倒 embedded 和 systems 之间最少间隔 2 个单词 AD 参考教材上有关的检索规则。
生产)" "摘要：(""双酚 A"" or 双酚基丙烷 or 二酚基丙烷) and 制备"
C
单选题 判断文献 Standard General Principles for Temperature Limits in the Rating of Electric Equipment and for the Evaluation of Electrical Insulation Page(s): 0_1 Digital Object Identifier : 10.1109/IEEESTD.1986.81591 的类型。 学位论文 研究报告 图书 期刊 标 准 e 含 Standard，Guide，有标准号的等的为标准
Abstract:filled and composite materials and electromagnetic shielding and research "Abstract:filled and ""composite materials"" and ""electromagnetic shield*""" "Abstract:filled and ""composite materials"" and ""electromagnetic shield*"" and research" "Title:filled and ""composite materials"" and ""electromagnetic shield*"" and research" B 关键：不能用 research 作为检索词，要注意同义词和近义词的使用。
B 关键：应根据题目的要求选择正确的检索字段。
单选题
在万方中查找“基于粗糙集的神经网络建模方法研究”的文献，检索结果最多的是： 粗
糙集 神经网络 建模方法 基于粗糙集的神经网络建模方法研究 粗糙集 神经网络 建
模 研究 粗糙集 神经网络 建模
D 关键：方法、研究不能作为检索词，多用单元
词，少用多元词
单选题 " 判 断 文 献 Lis, T;Nowacki, K.OPTIONS OF UTILISING STEELMAKING DUST IN A NON-METALLURGICAL INDUSTRY.METALURGIJA.2012,51(2): 257-260 的文献类型。" 学 位 论 文 报告 图书 期刊 会议论文 D "含 journal，Volume(但不含 ISBN 号),或卷 册次（如：2012,51(2)）"
M=嵌入式系统*触摸屏控制 M=嵌入式系统*触摸屏*控制 M=嵌入式*系统*触摸屏* 控制 M=嵌入式*触摸屏 D
学海无涯
单选题
下列检索结果最多的检索式是 "摘要：""双酚 A"" and 制备" "摘要：(""双酚 A"" or 双酚
基丙烷) and 制备""摘要：(""双酚 A"" or 双酚基丙烷 or 二酚基丙烷) and (制备 or 合成 or
多选题(检索题)
Orlita M 在 2008 年发表的关于“Multilayer Epitaxial Graphene ”主题的论文被 Web of Science
收录的情况，下列说法正确的是： 该 论 文 的 标 题 是 《 Approaching the Dirac Point in
High-Mobility Multilayer Epitaxial Graphene》 该论文被引用频次不少于 80 次 "Potemski, M.
学海无涯
单选题 维普数据库中检索有关“填充型电磁屏蔽复合材料研究进展”的文献，合理的检索式为
R=填充型*电磁屏蔽*复合材料*研究进展 R=填充型*电磁屏蔽*材料 R= 填 充 型 and 电磁屏蔽 and 材料 R=填充型 and 电磁屏蔽 and 复合材料 and 研究进展 R= 填 充 型 电 磁屏蔽*复合材料*(研究+进展) B 关键：注意使用正确的逻辑算符，研究进展等不能作为 检索词
Oxidative stress biomarkers and chromogranin A in uremic patients: effects of dialytic
treatment. Sample evaporation from pierceable cups: still an important source of analytical
单选题 课题“两性聚电解质溶液的结构研究”，最佳检索式为： "ts=""study on the structure
of polyampholyte solution""" "ts=structure and ts=""polyampholyte solution""" ts=structure or ts=polyampholyte solutionts=structure and ts=polyampholyte solution B 关键：多用单 元词，少用多元词
单选题 "判断文献 Proceedings of the 52nd Chemical Sensor Symposium. (Meeting held 9-11 September, 2011 in Niigata Japan). [In: Chem. Sens., 2011; 27(supple. B)].Editoria lsCommittee of Japan Association of Chemicla Sensors,Japan.(2011),142 pp.Publisher: (Denki Kagakkai Kagaku Sensa Kankyukai, Kasuga, Japan) 的文献类型。" 学位论文 研究报告 图书 期 刊