北京裕中中学2020年11月月考单元测试
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2020届北京市西城区裕中中学高三生物月考试卷及答案解析一、选择题:本题共15小题,每小题2分,共30分。
每小题只有一个选项符合题目要求。
1. 果蝇是XY型性别决定的二倍体生物。
在基因型为AaXBY果蝇产生的精子中,发现有基因组成为AaxBxB、AaXB、aXBXB的异常精子。
下列相关叙述错误的是A.细胞分裂与精子的形成过程受基因的控制B.AaX B X B精子的形成过程体现了生物膜的流动性C.AaX B精子的产生是基因突变或染色体变异的结果D.aX B X B精子的形成是减数第二次分裂异常导致的2. 蛋白质是细胞中重要的有机化合物。
下列有关叙述错误的是()A. 有些蛋白质具有免疫功能B. 有些蛋白质具有信息传递的作用C. 酶的化学本质都是蛋白质D. 蛋白质是构成细胞膜的主要成分之一3. 关于植物的生长发育过程,下列描述错误的是A. 不是受单一激素的调节B. 生长素的作用具有两重性C. 各种激素相互协调,共同调节D. 乙烯能促进果实的发育4. 将某种植物的成熟细胞放入一定浓度的物质A溶液中,发现其原生质体(即植物细胞中细胞壁以内的部分)的体积变化趋势如图所示。
下列叙述正确的是A. 0〜4 h内物质A没有通过细胞膜进入细胞内B. 0〜1 h内细胞体积与原生质体体积的变化量相等C. 2〜3 h内物质A溶液的渗透压小于细胞液的渗透压D. 0〜1 h内液泡中液体的渗透压大于细胞质基质的渗透压5. 丙肝病毒(HCV)是一种+RNA病毒,即以注入宿主细胞的病毒RNA为模板直接翻译出蛋白质。
用于治疗丙肝的新药索非布韦是一种尿嘧啶类似物,能够抑制依赖RNA的RNA聚合酶(NS5B)合成病毒RNA。
根据以上材料,下列说法不正确的是()A.人体中含有能识别HCV的受体蛋白基因并在肝细胞中可以表达B.若HCV的+RNA含有m个胞嘧啶,则获得子代病毒内的RNA至少需要m个鸟嘌呤C.NS5B可能无法区分参与到病毒RNA合成过程中的索非布韦与尿嘧啶D.病毒RNA在宿主细胞中能合成自身的蛋白质依赖于密码子的通用性6. 如图表示某生物的纺锤体,纺锤体由动粒微管,极微管和星体微管组成,细胞分裂后期需要马达蛋白的作用。
北京裕中中学物理电与磁单元测试题(Word版含解析)一、三物理电与磁易错压轴题(难)1.某同学猜想电磁铁磁性强弱与电流大小和线圈匝数有关。
在探究“电磁铁磁性强弱与电流大小是否有关”时,使用的器材有:学生电源、电磁铁、电流表、滑动变阻器、开关、软铁块P、铁架台、电子秤、导线若干。
某同学用绝缘细线将电磁铁M悬挂在铁架台上,并保持它与软铁块P的距离不变:(1)实验时,他_______开关S,组装实验电路如图所示,请将滑动变阻器连入电路中,要求:滑片向左滑动时电路中电流变大;(2)本实验中根据______________比较电磁铁磁性强弱;(3)请设计出记录实验数据的表格,表中要有必要的信息。
(_________)【答案】断开,电子秤的示数实验次数电流I/A电子秤的示数/g123……【解析】【分析】【详解】(1)[1]在连接电路时,开关S应处于断开状态。
由题意知,电路中变阻器调节电路的电流,所以各元件串联;而滑片向左滑动时电路中电流变大,即滑片向左滑动时,变阻器接入电路的电阻变小,所以变阻器下边的接线柱应接左边的;电路所用电源为学生电源,则电流表应用大量程0~3A,故电路连接如下:(2)[2]实验根据电子秤的示数来比较电磁铁磁性强弱。
因为当开关闭合时,电路中有电流通过,电磁铁有磁性,对放在电子秤上的软铁块P有吸引力。
当电流越大时,电磁铁的磁性就越强,对软铁块的吸引力就越大,那么软铁块对电子秤的作用力就越小,则电子秤的示数就越小。
(3)[3]实验探究的是“电磁铁磁性强弱与电流大小的关系”,所以在实验时需记录电流的大小,而磁性的强弱是通过电子秤的示数来反映的,所以还需要记录电子秤的示数。
故实验表格如下:实验次数电流I/A电子秤的示数/g123……2.小谦在探究“磁体间相互作用规律”时发现:磁体间的距离不同,作用力大小也不同。
他想:磁体间作用力的大小与磁极间的距离有什么关系呢?(1)小谦用如图所示的实验进行探究。
2020年11月月考考试试题卷及答案一、选择题1.关于自由落体运动,下列说法正确的是( )A .自由落体运动是一种匀速直线运动B .物体刚下落时,速度和加速度都为零C .古希腊哲学家亚里士多德认为物体下落快慢与质量无关D .伽利略认为,如果没有空气阻力,重物与轻物应该下落得同样快2.如下图所示,两木块的质量分别为m 1和m 2,两轻质弹簧的劲度系数分别为k 1和k 2,上面木块压在上面弹簧上(但不拴接),整个系统处于平衡状态.现缓慢向上提上面的木块,直到它刚离开上面的弹簧.在这个过程中,下面木块移动的距离为( )A .11m g kB .22m g kC .12m g kD .21m g k 3.如图所示,竖直平面内固定的半圆弧轨道两端点M 、N 连线水平,将一轻质小环套在轨道上,一细线穿过轻环,一端系在M 点,另一端系一质量为m 的小球,不计所有摩擦,重力加速度为g ,小球恰好静止在图示位置,下列说法疋确的是( )A .轨道对轻环的支持力大小为mgB .细线对M 点的拉力大小为3mg C .细线对轻环的作用力大小为32mg D .N 点和轻环的连线与竖直方向的夹角为30°4.如图所示,物体B 叠放在物体A 上,A 、B 的质量均为m ,且上、下表面均与斜面平行,它们以共同速度沿倾角为θ的固定斜面C 匀速下滑,则( )A .A 、B 间没有静摩擦力B .A 受到B 的静摩擦力方向沿斜面向上C .A 受到斜面的滑动摩擦力大小为2mgsin θD .A 与B 间的动摩擦因数μ=tan θ5.如图所示,人站立在体重计上,下列说法正确的是()A.人对体重计的压力和体重计对人的支持力是一对平衡力B.人对体重计的压力和体重计对人的支持力是一对作用力和反作用力C.人所受的重力和人对体重计的压力是一对平衡力D.人所受的重力和人对体重计的压力是一对作用力和反作用力6.利用无人小飞机进行航拍,地面操控者进行以下操作时,能把无人机看成质点的是A.观察飞机通过一个标志杆所需时间B.调整飞机的飞行姿态C.调整飞机旋转机翼D.调整飞机与被摄物体的高度差7.手机导航越来越多成为人们出行的必备工具,绍兴多风景名胜,某游客游完兰亭后驾车去东湖,他打开手机导航,搜索了驾车线路,线路显示走常规路线距离19.8km,需用时27分钟,选择走距离较短则有17.4km,需用时30分钟,如果走高速优先则有22.3km,需用时29分钟,则下列判断正确的是()A.走常规路线的19.8km指的是位移B.走“距离较短”说明路程最小C.选择走“距离较短”,则瞬时速率一定最小D.走“高速优先”,平均速度最大8.如图是物体在水平面上运动的v-t图象,以下判断正确的是()A.1s末物体运动方向发生改变B.在0~3s时间内,物体的平均速度大小为1m/sC.1~3s内物体加速度是5~6s内加速度的2倍D.0~6s内物体发生的位移为1m9.“空手把锄头,步行骑水牛,人从桥上过,桥流水不流。
2020年北京西城区裕中中学高二数学文联考试卷含解析一、选择题:本大题共10小题,每小题5分,共50分。
在每小题给出的四个选项中,只有是一个符合题目要求的1. 若,则的导函数的解集为()A. (0,+∞)B. (-1,0)∪(2,+∞)C. (2,+∞)D. (-1,0)参考答案:C令f′(x)=2x-2->0,利用数轴标根法可解得-1<x<0或x>2,又x>0,所以x>2.故选C.2. a = 1是直线和互相垂直的()A.充分不必要条件B.必要不充分条件C.充要条件D.既不充分也非必要条件参考答案:A略3. 已知双曲线C:的焦距为10,点P(2,1)在C的渐近线上,则C的方程为()A. B. C. D.参考答案:A4. 双曲线的渐近线方程为()参考答案:A略5. 已知命题,则的否定形式为A. B.C. D.参考答案:B略6. 等比数列中,为其前项和,,公比的值是()A 1B CD参考答案:C略7. 某几何体的三视图如图所示(单位:cm),则该几何体的体积是()A. B. C. D.参考答案:AA.B.C.D.试题分析:由三视图可知,该几何体为一三棱锥,故其体积,故选A.考点:1.三视图;2.空间几何体的体积.8. 为美化环境,从红、黄、白、紫4种颜色的花中任选2种花种在一个花坛中,余下的2种花种在另一个花坛中,则红色和紫色的花不在同一花坛的概率是()A.B.C.D.参考答案:C试题分析:将4种颜色的花种任选2种种在一个花坛中,余下2种种在另一个花坛中,有6种种法,其中红色和紫色的花不在同一个花坛的种数有4种,故所求概率为,选C.9. 下图是解决数学问题的思维过程的流程图:在此流程图中,①、②两条流程线与“推理与证明”中的思维方法匹配正确的是()A. ①综合法,②反证法B. ①分析法,②反证法C. ①综合法,②分析法D. ①分析法,②综合法参考答案:C【分析】由分析法和综合法的证明思路即可得到答案。
2019-2020学年北京市西城区裕中中学高三英语月考试题及答案第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项ATheatre and film fans will be excited about what's on stage and on screen.THEATRE☆Take in a Broadway show at Mirvish Venues. The Grand Theatre hosts plays and musicals in London, Ontario. The building dates back to 1901 and starts a rare architectural feature.☆In the heart of Ontario's bread-basket, treat yourself to uniquely Canadian modern productions at the Blyth Festival in Goderich.☆Ontario becomes popular on the stage as theatre festivals. The Stratford Festival produces classic productions mainly on Shakespeare in Stratford. Works by Bernard Shaw, the founder of social realism in English literature enrich the stage at the Shaw Festival in Niagara-on-the-Lake.FILM☆Expand your mind with great modem, independent film during the Reel Asian FilmFestival or visit the TIFF Bell Lightbox for exhibitions related to film and theatre.☆Making productions that don't reach half an hour by new filmmakers, the Breakthroughs Film Festival provides some of the most video movies.☆Five amazing programs feature films from across the globe during the Durham Region International Film Festival.☆One of the top film festivals in the world, the 'Toronto International Film Festival features everything from mainstream Hollywood productions to international cinema.COMEDY☆For a laugh, head to a comedy club. Absolute Comedy, Second City and Yuks Yuks all specialize in finding your funny bone.☆The Toronto Alliance for the Peforming Arts will keep you up to date on what 's playing onToronto's stages; you can look through their “TOnight” for on-the-go performing arts tickets, reviews and searches on your mobile.1. Where should those preferring realistic dramas go?A. London.B. Stratford.C. Goderich.D. Niagara-on-the-Lake.2. What does the Breakthroughs Film Festival focus on?A. Short films.B. Films across the world.C. Modern films.D. Films by young directors.3. What might “TOnight” be?A. A comedy.B. An application.C. A guidebook.D. An organization.BThe shade of a single tree can provide welcome relief from the hot summer sun. But when that single tree is part of a small forest, it creates a considerable cooling effect. According to a study published today in the Proceedings of the National Academy of Sciences, trees play a big role in keeping our cities cool.According to the study, the right amount of tree cover can lower summer daytime temperatures by as much as 10 degrees Fahrenheit. And the effect is quite noticeable from neighborhood to neighborhood, even down to the scale of a single city block. “We knew that cities are warmer than the surrounding countryside, but we found that temperatures vary just as much within cities,” says Monica Turner, a professor in the department of Integrative Biology, Wisconsin-Madison University and a co-author of the study.With climate change making extreme heat events more common each summer, city planners are working on how to prepare. Heat waves drive up energy demands and costs and can have big human health impacts. One potentially powerful tool, the study's authors say, are organisms that have been around long before human civilizations could appreciate their leafy benefits. And those trees may be the secret to keeping the places we live livable.Essentially, says Turner, roads, sidewalks and buildings absorb heat from the sun during the day and slowly release that heat at night. Trees, on the other hand, not only shade those surfaces from the sun's rays, they also release water into the air through their leaves, a process that cools things down.To get the maximum benefit of this cooling service, the study found that tree cover must be more than 40 percent. In other words, an aerial picture of a single city block would need to be nearly half-way covered by a leafy green network of branches and leaves.4. What can we infer from Paragraph 2?A. Temperatures in cities mainly depend on their green coverage.B. People living and working in cities must plant trees in summer.C. Cities are warmer than the countryside because they don't have trees.D. An area with more trees can be cooler than the other parts within a city.5. Which of the following problems is caused by extreme heat events?A. Severe damage of city facilities.B. Serious human health problems.C. Residents' growing demands for plants.D. Unnecessary waste of energy resources.6. Why are trees crucial to cities?A. They help shade and cool the cities.B. They make urban scenery beautiful.C. They build up city cooling systems.D. They essentially block and release heat.7. What can city planners conclude from the study?A. They should publish the study in a newspaper.B. They should educate citizens to protect forests.C. They should plant trees on roads and sidewalks.D. They should cover nearly half the city with trees.CWe have most friends at the age of 26 afterhaving spent the first quarter of our lives building up our friendship circle, new research has claimed.The research into friendship shows that our social circle peaks at 26 years and 7 months, at which we typically have five close friends. Women are most popular at 25 years and 10 months, with men hitting the highest friendship point a little later at 27 years and 3 months.The research, by Forever Friends, shows that about a third of adults meet their closest friends while at school, with about a fifth saying they meet them at work.Social networks such as Facebook and Twitter now also play a major role in building new friendship. The research points out that 25 to 34-year-olds make 22 friends via Facebook, compared to 18 to 24-year-olds who make 12, and 35 to 44-year-olds who make just four.Forever Friends' relationship coach Sam Owen says, “It is no coincidence that over a third of us meet our best friends at school. It is a key time in our lives when friendship is growing through sharing notes, giving gifts, seeing each other regularly and laughing a lot. As adults we can often forget how powerful these small things are and how the little things can make a difference."Later in life we find ourselves losing friends. Over half of us lose friendship through moving, while 36% saythat over time they grow apart from close pals. Having children also causes 19% todrift away fromchildhood friends.With growing pressure being put on friendship these days, it's important to make time for our friendship.8. How many friends can a 20-year-old college student make via Facebook?A. 22.B. 18.C. 12.D. 4.9. In Paragraph 5, the author is trying to tell the readers ________.A. how important making friends isB. school time is an important period to develop friendshipC. how much has been done to keep friendshipD. that friendship is not easy to keep10. The underlined phrase "drift away from" in Paragraph 6 means ________.A. make sense ofB. make up withC. feel sorry forD. lose touch with11. This passage is mostprobably taken from ________.A. a newspaperB. an advertisementC. a textbookD. Facebook or TwitterDKids often admire well-known celebrities, putting posters of their favorite musicians, movie stars and athletes on their bedroom walls. But rarely does a young person get to meet or talk to their idol. Yet for one young tennis player - Coco Gauff - her chance to do just that happened in an amazing way!Coco was born on March 13, 2004. At the age of 4, she developed an interest in tennis after watching Venus Williams win the Australian Open on TV. Coco began playing at 7 and showed a real talent for the sport. When young Coco turned 10, she began training at a tennis centre run by Venus's coach, Patrick Mouratoglou. He still remembers the first time he met Coco. He says, “She impressed me with her determination and fighting spirit. ” Convinced of her talent, Mouratoglou sponsored(资助)Coco to attend his academy in France. While she was preparing to go to the academy in 2019, she received a call that would change her plans and her life!Wimbledon(温布尔顿网球比赛)organizers called and offered Gauff entry to the tournament(联赛)as a wildcard(外卡选手).This madeher one of the youngest players to ever qualify. Before she knew it she was on her way to London. After arriving, she received another surprise. For her Wimbledon debut(首次登场),she would beplaying her lifelong hero, Venus Williams! The tennis legend is 24years older than Gauff.The world watched with amazement as young Gauff beat Venus in two straight sets! Afterwards, Gauff shook Venus's hand, thanked her and said, “I wouldn't be here if it wasn't for you. " After the match, Venus said of Gauff, “I think the sky is the limit;it really is. " Venus said, “I feel honored that I was on her wall [as a poster] at some point in her life. Soon she will be on other girls' walls. It's nice because it will keep going from the next generation to the next generation. "12. What can we learn about Coco from the text?A. She took up tennis as career at the age of 4.B. She went to academy at the age of 7.C. She had played against William before 10.D. She beat William at the age of 1513. Which of the following can best describe Coco?A. Talented and modest.B. Lucky and responsible.C. Proud and hard-working.D. Respectful and cheerful.14. What can we infer from Venus's words?A. Coco had reached her limits.B. Coco would rise to fame after the match.C. Coco's poster would be passed on.D. Coco had once visited her home.15. What can be a suitable title for the text ?A. Coco Gauff:Tennis's Next Superstar.B. Coco Gauff:A Poster on the Wall.C. What Posters Mean to a Young Girl.D. The Significance of Admiring an Idol.第二节(共5小题;每小题2分,满分10分)阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。
2020年北京市西城区裕中中学高三英语第一次联考试题及参考答案第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项ALocated besideLake Geneva, the Olympic Museum houses more than 10,000 artificial objects and hours of interactive contents highlighting some of the best moments during the Olympics. Here are some of the museum’s most moving moments.The Olympic ParkThe journey through the Olympic Museum begins in the Olympic Park, an 8,000-square-meter outdoor area in front of the museum overlooking Lake Geneva and theAlps. The park contains artwork and sculptures that show respect to the world of sport.The first Olympic symbolThe “Olympic Rings” flag was designed by Coubertin in 1913. The rings represent the five continents that participate in the Olympics: Africa, Asia,America,AustraliaandEurope. The six color1 s include at least one color1 that is represented on the flag of every country.The stadiumsThe stadiums that host the Olympic Games are as much of a celebration of design as the games are a celebration of sportsmanship. Guests can explore plans and models of Olympic stadiums’ past and present, including one of the games’ most attractive stadiums, the Bird’s Nest from Beijing 2008 Olympics.The Olympic medalsHave you ever wondered what an Olympic medal looks like? The Olympic Museum has a room that houses every bronze, silver, and gold medal from every Olympic Games dating back to the first modern Olympics of 1896. Each medal design is a unique representation of the year and location in which the games were held.1.Which moment do you see first when exploring the Olympic Museum?A.The Olympic Park.B.The first Olympic symbol.C.The stadiums.D.The Olympic medals.2.What do you know from The first Olympic symbol?A.The first modern Olympics took place inGreece.B.There are six color1 s on the flag of every country.C.Australia used to be the largest continent on earth.D.The “Olympic Rings” flag was created in 1913.3.What can you do in the section of The stadiums?A.Admire the view ofLake Geneva.B.Meet some famous designers.C.Enjoy the model of the Bird’s Nest.D.Talk with guests of honour.BThere have been many fine films over the past several years aboutcharacters struggling with Alzheimer’s disease. But few of them have gone as deeply and frighteningly into the corners of adeterioratingmind as The Father,a powerful new drama built around a spellbinding performance from Anthony Hopkins.At this point in his long career,Hopkinswould seem to have exhausted his ability to surprise us, but his work here is nothing short of astonishing. His character, also named Anthony, is 80 years old and has dementia. At the beginning of the movie, his daughter, Anne — played by Olivia Colman — stops by hisLondonapartment to check on him. Her father's condition has taken a turn for the worse, and his temper has become severe enough to send his latest live in nurse packing. Anthony is stubborn and defiant and insists that he can manage on his own. But that's clearly not the case, given his habit of misplacing his things and his inability to remember names and faces, Anne's included.As The Father goes on, the more it becomes clear that it's his own mind that's playing tricks on him. What makes the movie so unsettling is the way it wires us directly into his subjective experience, so that the foundations of the story seem to shift at random from scene to scene. A man suddenly appears in the apartment, claiming to be Anne's husband, which is odd, since just a few moments earlier, Anne seemed to be single. Anne goes out shopping for groceries, but when she returns, she's played not by Olivia Colman but by another actress, Olivia Williams. Even the apartment itself begins to shift. You notice puzzling differences-wasn't there a lamp on that hallway table just a moment ago?The story in The Father may be complicated but it's also heartbreakingly simple: man grows old and loses his memory, and his daughter, after lifetime of love and devotion, must begin the long painful process of saying goodbye.Hopkinsshows us Anthony's struggle to keep his sense about him. It's a striking performance-and an impossible one to forget.4. What does the underlined word “deteriorating” mean in the first paragraph?A. Worsening.B. Narrowing.C. Recovering.D. Improving.5. What do we learn about the character Anthony in the movie?A. He can take care of himselfB. He drives away the nurses.C. He is easy-going and forgetful.D. He lives with his daughter all the time.6. The shift of scenes in the movie is designed to .A. build the dramatic tension in the family.B. show off the well-designed story line.C. frighten the movie-goers with mysterious plot.D. involve the viewers into thedisordered memories.7. What does the author think ofHopkins?A. He has run out of his talent.B. He is not suitable for the roleC. He masterly plays the old man.D. He presents an odd performance.CAvi Loeb, a scientist, believes that we are not alone in the universe. The belief fits withLoeb's alien spaceship theory that at least one alien spaceship might be flying over the orbit of Jupiter, which won the international attention last year.Astronomers inHawaiifound the first known interstellar object in late 2017. It was a bit of light moving so fast past the sun that it could only have come from another star. Almost every astronomer on the planet was trying to figure out how the object, called “Oumuamua” got to our far-away part of the Milky way galaxy. “One possibility is that ‘Oumuamua’ is debris from an advanced technological equipment,” Loeb said. “Technology comes from another solar system just showed up at our door. ”“‘Oumuamua’ is not an alien spaceship,” Paul Sutter, another scientist wrote. He suggested Loeb was seeking publicity. Most scientists think “Oumuamua” is some sort of rock. They think it could be an icy wandering comet.Loeb says that “Oumuamua's” behavior means it can't be a block of rock shaped like a long photo. He thinks it's more likely an object that's very long and thin, perhaps like a long pancake or a ship's sail. Loeb says that if someone shows him evidence thatcontradictshis beliefs, he will immediately give in.Loeb believes himself a truth-teller and risk-taker in an age of very safe, too-quiet scientists. “The worst thing that can happen to me is that I would be relieved of my management duties, and that would give me even more time to focus on science,” Loeb says. He said he wouldn't mind giving up all the titles he had and returning to theIsraeli farming village where he grew up.8. What does Loeb say about “Oumuamua”?A. It is an icy comet.B. It looks like a long photo.C. It is actually some sort of rock.D. It may come from another alien civilization.9. What does the underlined word “contradicts” in paragraph 4 probably mean?A.Goes against.B. Relies on.C. Turns to.D. Searches for.10. What do you think of Loeb?A. He is foolish.B. He is unsatisfied with his titles.C. He is a firm believer in scientific truth.D. He is uncertain about his career future.11. What's the best title for the text?A. Have Aliens Paid a Visit in Spaceships?B. Do We Really Know about Space Theory?C. Scientists Are Working on High TechnologyD. Astronomers Are Encouraging Space TravelDOne-year-old Tallulah turned purple and stopped moving after the sweet became stuck in her throat. Her mum Leigh-Anne said the drama began during a visit to her grandma’s house when her grandparents gave her older kids some sweets.“Then at about 4:45 pm, Tallulah started to choke—we all went into a panic.”“It seemed like it went on for ages. Not one of us knew what to do.”“I rang an ambulance while my grandma and granddad tried to get the sweet to come up.”“Tallulah was panicking at first but then she started to go purple—she almost had no oxygen left in her.”With her daughter limp (无力的) and time running out, Leigh—Anne knew she couldn’t afford to wait for the ambulance to arrive.“The only thing I could think was to go out into the street.” She said.“I rushed out and screamed for someone to help while my grandma rushed out crying with Tallulah.”At exactly the moment, Caitlin, who is studying public services atRedcarCollege, was passing byQueen Street. She said, “I was waiting to go to work when I heard someone screaming for help, so I ran straight over.”The 17-year-old girl added, “Something just clicked and I went into auto mode. The little girl was completely limp, so I checked her airways and tilted (使倾斜) her over and started hitting her back. I turned her round and tapped on her chest, then after what felt like forever she coughed up the sweet and spat it out.As soon as she started crying I felt a huge relief. I was just so pleased I was able to help.”Caitlin was taught her lifesaving skills when she joined the Army Cadets four years ago.12. When did Tallulah get choked?A. While eating sweets.B. While enjoying a drama.C. While having a meal.D. While taking some medicine.13. Why did the family go out into the street?A. To buy some needed tools.B. To search for timely help.C. To get a breath of fresh air.D. To wait for the ambulance to arrive.14. Which of the following can best describe Caitlin?A. Brave and selfless.B. Kind and energetic.C. Determined and generous.D. Quick-thinking and helpful.15. What may be the best title for the text?A. First aid skill sounds important.B. Screaming for help makes sense.C. Eating sweets endangers baby girl.D. Heroic teenager saves baby girl’s life.第二节(共5小题;每小题2分,满分10分)阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。
2020届北京市西城区裕中中学高三英语月考试卷及答案解析第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项AVail Marriott Mountain ResortVail Winter Weather GuideCovered in grand mountains,flashing lights and snowy pines, Vail is perfect for explorers and people who love adventures alike. Whether skiing down the slopes for the first time or the hundredth, this guide will ensure that you're ready for everything this city has to offer.Best Time to VacationDecember through to March tends to be the best time for those interested in skiing down the slopes in style.Know Before You GoMake the necessary preparations and reservations in advance:• Ski and Snowboard Rentals(租赁):Don't have your own equipment! Vail Sports rents out a variety of skis and snowboards for all ages and abilities, as well as snow shoes and helmets.• Clothing Rentals:For those not interested in purchasing hundreds of dollars of ski clothing for one vacation. Mountain Threads has a rental program just for you, where you can get mountain necessities like coats, pants and goggles(护目镜).• Suncream:You might not think about getting sunburn, but it happens to skiers and snowboarders every day.• Difficulty levels:It's important to know what level you're at before jumping on a ski lift and heading up the mountain. Use a free trail map and plan the slopes you're going to ski down ahead of time based on the following levels you'll find up the mountain:• Green Circle:These are the easiest slopes.• Blue Square:These indicate average to medium levels.• Black Diamond:The most advanced slopes. Some mountains will feature double black diamonds, indicating even higher difficulty.While Vail is famous for snow sports, you'll find plenty of other fun things to do once the sun goes down or you are tired. Explore the rest of our website for more information!1. When is the best time to visit Vail if you like skiing?A. In March, April June and DecemberB. In December, February, April and MarchC. In January, February, March and DecemberD. In September, October, November and December2. Before you go to the Vail Marriott Mountain Resort, you will have to take ________with you.A. helmetsB. gogglesC. suncreamD. a trail map3. What will a skiing beginner who wants to enjoy himself prefer to choose?A. Blue SquareB. Black DiamondC Double Black Diamonds D. Green CircleBOn the night of September 19, 1961, Betty Hill and her husband Barney were driving home through the White Mountains from Niagara Falls. They were travelling on anearly deserted two-lane highway when Betty noticed a steady light in the sky that was getting bigger and brighter.She thought it was a planet or a star. Barney, stimulated at her excitement, said it was probably just a wandering aeroplane. Whatever it was, it appeared to be following them.They stopped their car for a closer look. What they said happened next, changed their lives. The flying object was noiseless. It appeared to be spinning. It was as big as a jet but shaped like a pancake.So formed the tale of Betty Hill, a New Hampshire social worker who, with Barney, a postal worker, claimed to be kidnapped by aliens, who were from outer space, on a moonlit night about 60 years ago.After reluctantly going public with her experience, Hill, who died of cancer at her New Hampshire home, aged 85, became a celebrity on the UFO circuit and was known as the “first lady of UFOs”.Intriguingly, at the time of the incident, the Hills remembered nothing except that they had spied a strange object in the sky. Later, troubled by nightmares and other stress-related pains, the couple underwenthypnosis(催眠) where the full story came out with the aid of Boston psychiatrist Benjamin Simon, an expert in medical hypnosis.On their night of contact the Hills arrived homeat 5 a.m., unable to account for two lost hours. They were also confused by the odd marks on their telescopes, deep signs on the tops of Barney’s best shoes, Betty’s torn dress and strange circular markings on their car that made the needle of a compass jump wildly.After seeing them for six months, the psychiatrist concluded the Hills’ lost memory about the hours they lost on that night in 1961 “appeared to involve an amazing experience on the part of both of the Hills”. Whether the experience had been fantasy or reality, Simon could not say, but he said he was convinced they had not been lying. He guessed that it had been a kind of shared dream.Reports of aliens capturing humans and taking them aboard oddly shaped spacecraft were “comparatively rare” before 1975. After a movie, “The UFO Incident”, about the Hills came out, however, such stories increased.4. When they saw the strange object in the sky, Barney and Betty Hill ______________.A. were astonished at its strange flight and noiseB. regarded it as just a wandering car following themC. realized immediately what the danger it might causeD. showed curiosity in discovering what it really was5. The word “Intriguingly” in paragraph 6 most probably means “______________”.A. RidiculouslyB. TemporarilyC. RemarkablyD. Mysteriously6. The Hills later sought the help of a psychiatrist because ______________.A. they had lots of secrets in their lives after the strange experienceB. their lives were greatly disturbed by the unexpected experienceC. they wanted to share their unforgettable experience with the expertD. they hoped to forget completely what had happened to them7. This article was written in order to ______________.A. describe an unusual event to the readersB. convince readers of the existence of UFOsC. record how people were caught by aliensD. warn people of the dangers the UFOs causeCI don’t think I can recall a time whenI wasn’t aware of the beauty of the ocean. Growing up inAustralia, I had the good fortune of having the sea at my side. The first time I went toHalfmoonBay,I suddenly had the feeling of not being able to feel the ground with my feet anymore.For my 10th birthday, my sister and I were taken out to theGreat Barrier Reef. There were fish in different color1 s, caves and layers of coral. They made such an impression on me. When I learned that only one percent ofAustralia’sCoral Seawas protected, I was shocked. Australian marine (海洋的) life is particularly important because the reefs have more marine species than any other country on earth. But sadly, only 45% of the world’s reefs are considered healthy.This statistic is depressing, so it’s important for usto do everything to protect them. The hope that theCoral Searemains a complete ecosystem has led me to take action. I’ve become involved with the Protect Our Coral Sea activity, which aims to create the largest marine park in the world. It would serve as a place where the ocean’s species will all have a safe place forever.Together, Angus and I created a little video and we hope it will inspire people to be part of the movement. Angus also shares many beautiful childhood memories of the ocean as a young boy, who grew up sailing, admiring the beauty of the ocean, and trying to find the secrets of ocean species.8. What can we learn about the author from the underlined sentence inPara. 1?A. He seldom went surfing at the sea.B. He forgot his experiences about the ocean.C. He never went back to his hometown.D. He had a wonderful impression ofHalfmoonBay.9. What is Australian marine life like according to the second paragraph?A. It is escaping from theCoral Seagradually.B. It depends on reefs for living greatly.C. It may be faced with danger.D. It is protected better than that in other oceans.10. What’s the purpose of The Protect Our Coral Sea activity?A. It is intended to contribute to a complete ecosystem.B. It is intended to prevent more marine species being endangered.C. It is intended to set up a large nature reserve for reefs.D. It is intended to raise more teenagers’ environmental awareness.11. Why do Angus and the author create a little video?A. To urge more people to take action toprotect the marine species.B. To inspire more people to explore the secret of the ocean.C. To share their childhood experiences about the ocean.D. To bring back to people their memory of ocean species.DLas Vegascity inNevadais built in a desert. The city may be known to the outside world for its partying. But officials have found that there are 21 square kilometers of useless grass. The grass is never laid on, played on oreven stepped on. The grass is only there to look nice.Now, the city is asking theNevadastate legislature to ban useless grass. It is trying to become the first place inAmericato ban that kind of grass often seen between streets, in housing developments and in office parks.It is estimated that useless grass makes up 40% of all the grass inLas Vegasand it needs a lot of water to survive. Grass needs four times more water than dry climate plants like cactus. By tearing out the grass, the city could reduce yearly water usage by 15%.In 2003, the Southern Nevada Water Authority banned developers from planting grass in front of new homes. It also offered homeowners $ 30 for each square meter of grass they tear out. But fewer people are now using the program. Water usage has increased in southernNevadaby 9% since 2019. And last year,Las Vegaswent a record 240 days without major rainfall. The Colorado River provides much ofNevada's drinking water. The river could lose more water as climate change affects it.Water officials in other dry cities said water usage needs to be reduced. But they fear the reaction to reforms like the ones inLas Vegasif their communities do not accept them. Cynthia Campbell is the water resources adviser for the city ofPhoenixinArizona. “There might come a point when city restrictions get too severe for some residents. They'll say that is the point of no return for them,”Campbellsaid. “For some people, it's a pool. For some people, it's grass.”12. Why doesLas Vegascity try to ban useless grass?A. To protect the local people.B. To beautify the city.C. To reduce water usage.D. To reduce waste.13. What program was carried out inLas Vegasin 2003?A. Allowing planting grass before new houses.B. Encouraging the residents to tear out grass.C. Praising those who signed on the program.D. Awarding those who reduced water usage.14. What is implied inCampbell's words in the last paragraph?A. Many residents won't follow the ban.B. Reaction to the reform will vary personally.C. Other measures should be taken to protect wetter.D. Water officials should take many factors into account.15. What is the best title for the text?s VegasPlans to Ban Useless GrassB. A Method Is Adopted to SaveLas VegasC. Choices between Beauty and PracticeD. Grass Is Important but Useless inLas Vegas第二节(共5小题;每小题2分,满分10分)阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。
北京西城区裕中中学高三英语月考试卷含解析一、选择题31. Be careful with such things. If you , you’ll drop them.A. don’tB. won’tC. aren’tD. do参考答案:C略2. Paperback:264 pagesPublisher:sams(March 29,2005)ISBN:0672327627Product Dimensions:8.4×5.5×0.6 inchesOVERIEWThis book offers straightforward practical answers when you need fast results.By working through each 10-minute lesson,you’ll learn what you need to begin to use the PHP scripting language to make your websites interactive and dynamic.REVIEWWhen I first laid eyes on this book and its title,Teach Yourself PHP in 10 minutes,my first thought was that I was going to see this! So I opened it up and figured I’d look through it for ten minutes and see what would hit me.Well,10 minutes turned into 20,20 into 30 and 30 into a valuable resource that sits on my desk.Not only are the lessons within brief,but they are very easy to understand,well presented and very easy to understand for the beginner.Each lesson comes with tips to point out shortcuts,cautions to help you avoid common mistakes and notes to additional info.This book can be used in two ways,as a refernce or a complete tutorial on PHP basics.That alone is something that is very rare in teaching type books these days.Some of the more valuable and informative lessons will take you into the areas of:—Strings and variadles—Processing HTML forms—User authentication—Cookies and sessions —Security practices—Configuring PHP and more!!!The book is pretty basic for experienced PHP coders,but for new or intermediate users this book is worth more than the small $19.99 CAN suggested price.Although the cover suggests it covers PHP 5.0,the coding found within also applies to PHP 4.X.CONCLUSIONThis book completey surpised me with its value and does indeed teach you in ten minutes what other books claim to do in 24 hours.Full marks to author Chris Newman for this handy guide.66.Where can you see this short passage?A.In a section for ads in a website.B.In a book shop.C.In a science magazine.D.In a fiction novel.67.What is the book about according to the passage?A.How to make a website interactive and dynamic.B.How to do things in ten minutes.C. How to deal with all kinds of problems.D.How to configure PHP and more.68.What is the purpose of the passage?A.To tell us something about a new book.B.To tell us something about PHP.C.To make an ad for use the book.D.To tell us how to use the book.69.Which of the following is TRUE according to the passage?A.You can learn all kinds of things within only ten minutes.B.It is a good book only for beginners.C.The book is valuable for both experienced PHP coders and beginners.D.The book is more useful for new or intermediate users than experi-enced PHP coders.70.What is the price of the book?A.$19.99CAN.$19.99C.The author doesn’t tell us.D.$20.参考答案:66—70 AACDA略3. The furniture, with its modern style and bright color1 s, suits modern houses and their gardens, but looks _______ in the garden of a traditional home.A. out of questionB. out of orderC. out of sightD. out of place参考答案:D略4. ______ difficulty, you can reach me at this number. I’m always at your service.A. In favor ofB. In terms ofC. In case ofD. In spite of参考答案:5. --- The fellow has been suspected ______ e-mail fraud.--- Nowadays cybecrime is developing __________ an amazing rate.A. from; atB. about; inC. of; atD. of; with参考答案:C6. _____ to his research work made the professor care little about any other things.A. DevotedB. DevotingC. Having devotedD. Being devoted参考答案:D 7. It took more than a month for the connection between the emigration of animals and earthquake______.A.to make B.being made C.making D.to be made参考答案:D8. Ella has been complaining about the traffic her awake at night.A.keep B.to keep C.keeping D.kept参考答案:C【知识点】非谓语动词现在分词做伴随状语。
2020年北京市西城区裕中中学高三英语第一次联考试题及答案第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项AIn theUnited States, the word "holiday" is synonymous with celebration. The following tenholidaysper year are proclaimed by the federal government.Independence DayIndependence Day is annually celebrated on July 4 and is often known as "the Fourthof July”. It is the anniversary of the publication of the declaration of independence fromGreat Britainin 1776. Now it is celebrated in all the states. The army marks the occasion by firing a 13-gun salute every year. Ceremonies may include parades, official speeches, visits to historic monuments and fireworks displays.Memorial DayThis holiday, on the fourth Monday of every May, is a day on which Americans honor the dead. Originally a day on which flags and flowers were placed on graves of soldiers who died in the American Civil War, now it has become a day on which the dead of all wars and all other dead are remembered the same way.Veterans DayVeterans Day was established to honor Americans who had served in World War I. It falls on November 11, the day when that war ended in 1918, but it now honors veterans of all wars in which the United States has fought Veterans' organizations hold parades or other special ceremonies, and the US president customarily places a wreath on the Tomb of the Unknowns at Arlington National.ThanksgivingThanksgiving Day is celebrated on the fourth Thursday in November. It has been an annual tradition in theUnited Statessince 1863. Today, people celebrate Thanksgiving to remember these early days. The most important part of the celebration is a traditional dinner. Thanksgiving dinner almost always includes some of the foods served at the first feast: roast turkey, cranberry sauce potatoes pumpkin pies. Before the meal begins, families often pause to give thanks.1. When isIndependence Day?A. May 14,B. July 13.C. July 14.D. July 4.2. Which holiday honors dead soliders?A. Independence Day.B. Memorial Day.C. Veterans Day.D. Thanksgiving.3. What will Americans do on Thanksgiving Day?A. They say thanks.B. They havefriend gatherings.C. They go on holiday.D. They buy many cards.BKamikatsu, a small town in Japan, has shown the world that our garbage has far-reaching effects, and not just on our environment.Theexperiment in going zero waste started when the town built a new incinerator 20 years ago. But almost immediately, the incinerator was determined to be a health risk due to the poisonous gases when garbage was burned in it. It was too expensive to send waste to other towns, so locals had to come up with a new plan. Then the Zero Waste Academy was born, which helped perform this plan.Now Kamikatsu people separate their waste into 45 different categories. But in the beginning, it wasn't easy to convince local people to do all this work, and there was somepushback. Only after that initial education period did most residents come on board.This is all great news for waste reduction of course, but it has also had some unexpected social benefits as well. Like much of Japan, Kamikatsu's population is aging, and about 50 percent of the locals are elderly. The fact that the whole community takes their trash in to be recycled has created a local action and interaction between generations.That idea has been purposefully expanded to include a circular shop where household goods are dropped off and others can take them, and a tableware "library" where people can borrow extra cups, glasses, silverware and plates for celebrations."The elderly see this not as a waste-collection service, but an opportunity to socialize with the younger generation and to chat. When we visit them, they prepare lots of food and we stay with them for a while, we ask how they are," Sakano, the founder of the Zero Waste Academy, said.Sakano's ideas are truly revolutionary if you think about it. She's proving that community can be found through handling the stuff we no longer want and need.4. What is mainly talked about in paragraph 2?A. What harmful effects garbage burning has.B. Why garbage sorting is necessary in Japan.C. How the idea of zero waste was put forward.D. What the Zero Waste Academy functions as.5. What does the underlined word "pushback" probably mean?A. Inactive response.B. Generous reward.C. Bitter suffering.D. Beneficial guidance.6. What is a bonus of the zero waste project?A. Reducing waste.B. Creating community.C. Increasing people's income.D. Developing a new technology.7. Which part of a newspaper is this text most likely from?A. Technology.B. Health.C. Workplace.D. Lifestyle.CHave you ever been sad because of failure? Please remember, for quite often achieving what you set out to do is not the most important thing.A boy decided to dig a deep hole behind his house. As he was working, a couple of older boys stopped by to watch. “What are you doing?” asked one of the visitors. “I want to dig a hole all the way through the earth!” the boy answered excitedly. The older boys began to laugh, telling him that digging a hole all the way through the earth was impossible. After a while, the boy picked up a jar. He showed it to the visitors. It was full of all kinds of stones and insects. Then he said calmly and confidently, “Maybe I can’t finish digging all the way through the earth, but look at what I’ve found during this period!”Theboy’s goal was far too difficult, but it did cause him to go on. And that is what a goal is for-to cause us to move in the direction we have chosen, in other words, to cause us to keep working!Not every goal will be fully achieved. Not every job will endup with a success. Not every dream will come true. But when you fall short of your aim, maybe you can say, “Yes, but look at what I’ve found along the way! There are so many wonderful things having come into my life because I tried to do something!” It is in the digging that life is lived. It is the unexpected joy on the journey that really makes sense.8. The older boys laughed at the boy because he was thought to be______.A. braveB. impoliteC. foolishD. warm-hearted9. Why did the boy show the jar to the older boys?A. To drive them away.B. To show what he had found in digging.C. To show how beautiful the jar was.D. To attract them to join him in the work.10. What can be learnt from the fourth paragraph of the text?A. No dream can come true.B. All work will end successfully.C. Goals shouldn’t be set too high.D. Goals will make us work harder.11. The best title for the text should be______.A. A Boy Dug a HoleB. Joy in the JourneyC. No Pain, No GainsD. Failure Is the Mother of SuccessDAs a rider, Anna Kiesenhofe’s Olympics victory might be a surprise. The winner of the road race at the Tokyo Olympics left the sport at the end of 2017 when she found herself out of contract (合同). She came into Tokyo without a professional team and left as an Olympic champion.The 30-year old began her cycling career in 2014 after running injuries that prevented her from continuing her pursuits of triathlon (铁人三项). She later joined a Catalan team and won the Spanish National Cup in 2016.The then-26 year old signedher first professional contract with Lotto Soudal Ladies for the following season. However, she ended her 2017 campaign in April and did not sign a contract for 2018, eventually taking a year off the bike. In 2019, Kiesenhofer came back to the sport as a rider, winning the Austrian national road race. Despite her results, Kiesenhofer sill had no professional contract while going into the Tokyo Olympics.Kiesenhofer was the first rider to attack in the Olympic road race, eventually forming a breakaway along with Carl Oberholzer, Omer Shapira, Vera Looser and Anna Plichta, which went on to reach a gap of 11 minutes. After Looser and Oberholzer were dropped, Kiesnhofer ataced her two remaining breakaway companions.After Shapira and Plichta were caught by the peloton (主车群), the rest of the riders seemed to believe that they were racing among themselves for Gold, not knowing that Remehofere was still in front. While it might be amisjudgment from the rest of the peloton that allowed Kiesenhofer to keep her lead of more than two minutes, other riders’ mistakes should not detract from the Austrian’s efforts.Off the bike the new Olympic Champion has a PhD in mathematics after studying at the Technical University of Vienne as well as at Cambridge University. She currently works at the University of Lausanne.12. Why did Anna give up triathlon?A. She got injured.B. She lost interest in it.C. She had to attend university.D. She never won a medal.13. Which is the right order of the following events?①She ended her campaign.②She took a year off the bike.③She began her cycling career.④She won the Austrian national road race.⑤She won the Spanish National Cup.A. ③④①②⑤.B. ②③④①⑤.C. ③⑤①②④.D. ④②③①⑤.14. What were the riders of the peloton unaware of at the Tokyo Olympics?A. The road race was so difficult.B. Anna was a new rider.C. They had caught up with Anna.D. Anna took the lead of them.15. What is Anna’s present job?A. A cycling coach.B. A university teacher.C A professional rider. D. A college student.第二节(共5小题;每小题2分,满分10分)阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。
2020届北京市西城区裕中中学高三英语模拟试题及答案解析第一部分阅读(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项ALocated in the beautiful Sichuan Basin, Chongqing is a magical 8D city. The natural history and cultural scenery of the area provide children with learning opportunities because they can enjoy the many wonders of this area.Fengjie Tiankeng Ground JointTiankeng Diqiao Scenic Area is located in the southern mountainous area of Fengjie County. The Tiankeng pit is 666 meters deep and is currently the deepest tiankeng in the world. The scenic spot is divided into ten areas including Xiaozhai Tiankeng, Tianjingxia Ground, Labyrinth River, and Longqiao River. There are many and weird karst cave shafts, and countless legends haunt them.Youyang Peach GardenYouyang Taohuayuan Scenic Area is a national forest park, a national 5A-level scenic spot, and a national outdoor sports training base. Located in the hinterland of Wuling Mountain. The Fuxi Cave in the scenic spot is about 3,000 meters long, with winding corridors, deep underground rivers, and color1 ful stalactites. The landscape is beautiful.Jinyun Mountain National Nature ReserveJinyun Mountain is located in Beibei District of Chongqing City, about 45 kilometers away from the Central District of Chongqing City. The nine peaks of Jinyun Mountain stand upright and rise from the ground. The ancient trees on the mountain are towering, the green bamboos form the forest, the environment is quiet, and the scenery is beautiful, so it is called "Little Emei". Among them, Yujian Peak is the highest, 1050 meters above sea level; Lion Peak is the most precipitous and spectacular, and the other peaks are also unique.Chongqing People's SquareChongqing's Great Hall of the People, one of the landmarks of Chongqing, gives people the deepest impression than its magnificent appearance resembling the Temple of Heaven. It also uses the traditional method of central axis symmetry, with colonnade-style double wings and a tower ending, plus a large green glazed roof, large red pillars, white railings, double-eave bucket arches, and painted carved beams.1.How deep is the Tiankeng Ground Joint?A.666mB.3,000mC.45kmD.1050m2.Which of the following rocks can you see in Youyang Peach Garden?A.LimestoneB.StalactiteC.MarbleD.Quartzite3.Which attraction is closest to downtown Chongqing?A.Fengjie Tiankeng Ground JointB.Jinyun Mountain National Nature ReserveC.Chongqing People's SquareD.Youyang Peach GardenBIt is essential that students have a category of school-related activities they can participate in. These activities can range from activities during normal school hours to after-school activities. No matter the time, these activities should be available to every student, and at Victory Pioneers International Schools (V.P.I.S) it is encouraged that every student participate in at least one activity, educational and recreational.One of the primary reasons school activities are important at V.P.I.S. is because it gives students the exercise they might not normally receive. Most popularly, these types of activities include major sports such as football, basketball, baseball, tennis, track and field and soccer but also might include gymnasium games and other games.Activities during V.P.I.S. also make a good impression on colleges if students are planning to pursue more education. Colleges look for students who do not just go to school and go home after school. These activities range from participating in clubs and sports to volunteering after school at a recreation center or having a part-time job. If a college sees you maintained good grades while participating in these activities, it will be impressed.V.P.I.S. activities also allow students to be creative. Gifted-and-talented activities allow gifted students to participate in what they otherwise would never have experienced in the classroom. They are a great way to allow students to be creative. Additionally, participating in clubs such as drama that appeal to students’ interest also allows them to expand their knowledge and be creative.Students also can have their interests expanded by participating in activities. These activities could consist of anything, such as joining the Future Business Leaders, the school’s debate team and the chess team, to name a few. By participating in these activities, a student might realize he is interested in something he never knew he was interested in before.4. What can we learn about activities at V.P.I.S.?A. Not every student has access to them.B. Students are required to take part in them after school.C. They give students exercise that might not be got in other schools.D. Educational activities are more popular with the students.5. What benefits can the students get from the activities?A. They can get extra grades when applying for colleges.B. They will become more gifted and talented .C. They may expand their knowledge in drama.D. They may better know their own interests.6. Which of the following is a suitable title for the passage?A. The Benefits of V.P.I.S. ActivitiesB. School-related Activities at V.P.I.S.C. Colleges Need Creative StudentsD. Activities Make You Creative7. Where is the passage probably from?A. A scientific magazine.B. A college application guideline.C. A club introduction.D. The website of V.P.I.S.CPlanned missions to the moon need to hurry up to avoid hitting one of the busiest periods for extreme space weather, according to scientists conducting the most in-depth ever research on solar storm timing.Scientists at theUniversityofReadingstudied 150 years of space weather data to look into patterns in the timing of the most extreme events,which can be extremely dangerous to astronauts and satellites. This new research on space weather timing allows predictions to be made for extreme space weather. Therefore, it could be used to plan the timing of activities, which could be affected by extreme space weather, for example, major space missions.The researchers found for the first time that extreme space weather events are more likely to occur early in or late solar cycles-such as the one just starting. The findings may have influences on the NASA-led Artemis mission. It plans to make humans return to the moon in 2024, but can be put off to the late 2020s.Professor Mathew Owens, a space physicist at theUniversityofReading, said, “Until now, the most extreme space weather events were thought to berandomin their timing. Though there is no set pattern of the events, this research suggests they are more predictable.”In the new study, the scientists used a new method applying statistical modelling to storm timing for the firsttime. Previous research generally focused on how big extreme space weather events can be, based on observations of previous events. Predicting their timing is far more difficult because extreme events are rare, so there is ly little historic data to identify patterns. The findings suggest that any major planned space missions , which is beyond the next five years, will have to consider the higher probability of extreme space weather late in the present solar cycle between 2026 and 2030.8. What can we learn about the study from the first two paragraphs?A. It has lasted just 150 years.B. It doesn't refer to space weather data.C. It shows space weather has no effect on astronauts.D. It makes it possible to predict extreme space weather.9. Why might the NASA-led Artemis mission be put off?A. To research solar cycles.B. To avoid effects of space weather.C. To meet the needs of the astronauts.D. To make humans return to Earth in 2024.10. What does the underlined word “random“ in paragraph 4 probably mean?A. Irregular.B. Easy.C. Limited.D. Changeless.11. What can we infer from the last paragraph?A. The study is useful for future space missions.B. The planned space missions should be put off.C. Extreme space weather will happen before 2026.D. Previous observations make no difference to the study.DIt’s 13:30 and 28-year-old Marten Pella 's smart phone starts pinging, a signal that it’s time for us to stop working around his living room table and instead start our workout routine together. A cartoon character wearing bright red shorts on video begins instructing us to do star-jumps and sit-ups around his apartment.Pella, a research assistant at Stockholm University, is part of the Hoffice movement, which invites workers-freelancers(自由职业者)or full-time employees who can do their jobs remotely—to work at each other’s homes to increase productivity and enjoy an active social life.Those attending Hoffice events advertised on Facebook are typically asked to work silently in 45-minute blocks, before taking short breaks together to exercise, or simply chatting over a coffee. In addition, eachparticipant shares daily objectives with the rest of the group upon arrival, and is invited to report back on whether or not they have achieved them at the end of the day.“Often when I am alone, I can work focused for a couple of hours but then I’m easily distracted(分心).The help of others makes me so much more disciplined.” says Pella, who attends Hoffice events as both a guest and a host. Lunches mean networking and connecting with new contacts. “People are coming from really different areas and have different professions so there can be really interesting discussions,” he says.The Hoffice movement has grown quickly since it was founded in 2014 by Swedish psychologist Christofer Franzen, now 37. He had been giving lectures on the benefits of collective(集体的)intelligence, but realised he was spending most of his own time working alone at his kitchen table. “I wanted to test more structured home co-working with friends in similar situations,” he says.Franzen says that holding events in houses and apartments creates a unique atmosphere, because there’s a sense of community and desire to contribute. He’s looking for ways to expand the social value of Hoffice, by matching up members with relevant skills to share and even encouraging jobseekers to join its gatherings.12. Where is Pella when his smart phone starts pinging?A. In his own home.B. In his office.C. In another person’s home.D. At Stockholm University.13. What do people attending Hoffice events do first when they meet?A. Watch an exercise video.B. Work silently for 45 minutes.C. Tell each other their daily plans.D. Report what they have achieved.14. What does Franzen really mean by saying “friends in similar situations”?A. They usually work alone.B. They often give lectures.C. They study collective intelligence.D. They have to work at a kitchen table.15. What is the best title for the text?A. Sharing Comfortable WorkplacesB. A New Way to Make New FriendsC. Benefits of Collective IntelligenceD. Working from Others’ Homes第二节(共5小题;每小题2分,满分10分)阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。
北京裕中中学2020年11月月考单元测试一、选择题1.如图所示,用一把直尺可以测量反应速度。
现有甲、乙两同学,甲同学用手指拿着一把长60cm 的直尺,零刻度在上端甲同学手附近,乙同学把手放在最大刻度线位置做抓尺的准备,当甲同学松开直尺,乙同学见到直尺下落时,立即用手抓住直尺,记录抓住处的数据,重复以上步骤多次。
得到数据中有以下三组(单位:cm ),g=10m/s 2则下列说法正确的是A .第一次测量的反应时间约为2s B .第二次抓住之前的瞬间,直尺的速度约为30m/s C .三次中测量的反应时间最长为0.3sD .若某同学的反应时间为0.4s ,则该直尺仍可测量该同学的反应时间2.如图所示,一物块置于水平地面上.当用与水平方向成060角的力1F 拉物块时,物块做匀速直线运动;当改用与水平方向成030角的力2F 推物块时,物块仍做匀速直线运动.若1F 和2F 的大小相等,则物块与地面之间的动摩擦因数为A 31B .23C 312D .33.下列各组物理量中,全部是矢量的是( ) A .位移、时间、速度、加速度B .加速度、位移、速度变化量、平均速度C .力、速率、位移、加速度D .位移、路程、时间、加速度4.如图甲所示,小孩用80 N 的水平力推木箱不动,木箱此时受到水平地面的摩擦力大小为F 1;如图乙所示,小孩用100 N 的水平力恰能推动木箱,此时木箱与水平地面间的摩擦力大小为F 2;如图丙所示,小孩把木箱推动了,此时木箱与水平地面间摩擦力大小为F 3,若木箱对水平地面的压力大小为200 N,木箱与水平地面间动摩擦因数为0.45,则F 1、F 2、F 3的大小分别为( )A .80 N 、80 N 、90 NB .80 N 、80 N 、45 NC .80 N 、100 N 、90 ND .80 N 、100 N 、45 N 5.某同学绕操场一周跑了400m ,用时65s .这两个物理量分别是( )A .路程、时刻B .位移、时刻C .路程、时间D .位移、时间6.如图所示,一质点从0t =时刻由静止开始做匀加速直线运动,A 和B 是原点x t -图线上的两个点,该质点运动的加速度大小为( )A .24m/s 7B .22m/s 3C .25m/s 8D .22m/s7.关于位移和路程,下列说法中正确的是( ) A .出租车是按位移的大小来计费的 B .出租车是按路程的大小来计费的C .在田径场1500m 长跑比赛中,跑完全程的运动员的位移大小为1500mD .高速公路路牌上显示“上海100km”,表示该处到上海的位移大小为100km8.马拉车在水平路面上由静止开始前进,在以后的运动过程中,下面的哪些说法是正确的 A .马拉车的力先产生,车拉马的力后产生 B .马能拉动车是因为马拉车的力大于车拉马的力C .匀速前进时,马向前拉车的力等于车向后拉马的力,加速前进时,马向前拉车的力也等于车向后拉马的力D .马拉车的力和车拉马的力大小相等,方向相反,在同直线上,是一对平衡力 9.如图所示,物体B 叠放在物体A 上,A 、B 的质量均为m ,且上、下表面均与斜面平行,它们以共同速度沿倾角为θ的固定斜面C 匀速下滑,则( )A .A 、B 间没有静摩擦力B .A 受到B 的静摩擦力方向沿斜面向上C .A 受到斜面的滑动摩擦力大小为2mgsin θD.A与B间的动摩擦因数μ=tan θ10.在研究物体的运动时,力学中引入“质点”的概念,从科学方法上来说属于()A.极限分析物理问题的方法B.观察实验的方法C.等效替代的方法D.建立理想物理模型的方法11.打水漂是人类最古老的游戏之一(如图).仅需要一块小瓦片,在手上呈水平放置后,用力水平飞出,瓦片擦水面飞行,瓦片不断地在水面上向前弹跳,直至下沉.下列判断正确的是()A.飞出时的初速度越大,瓦片的惯性一定越大B.飞行时所用时间越长,瓦片的惯性一定越大C.飞出去的距离越长,瓦片的惯性一定越大D.瓦片的质量越大,惯性一定越大12.一遥控玩具汽车在平直路上运动的位移﹣时间图象如图所示,则()A.15s内汽车的位移为 300mB.前10s内汽车的加速度为3m/s2C.20s末汽车的速度为﹣1m/sD.前 25s内汽车做单方向直线运动13.有下列几种情景,请根据所学知识选择对情景的分析和判断正确的说法 ( )A.嫦娥四号运载火箭点火后即将升空,因火箭还没运动,所以加速度一定为零B.高速公路上高速行驶的轿车紧急刹车,此时轿车速度变化很快,所以加速度也大C.运行的磁悬浮列车在轨道上高速行驶,因其速度很大,所以加速度也一定很大D.江泉高架桥的下桥匝道指示牌数字“40”,意思是车辆平均速度限定在40km/h及以下14.如图为一个做直线运动物体的v-t图象,则A.0~3s物体做匀速直线运动B.3~6s物体做匀速直线运动C.2 s和4s时刻的速度方向相反D.第3s时刻物体速度方向发生改变15.一汽车从静止开始做匀加速直线运动,然后刹车做匀减速直线运动,直到停止.下列速度v和位移x的关系图象中,能描述该过程的是()A.B.C.D.16.物体由静止开始做匀加速直线运动,若第1秒内物体通过的位移是0.5m,则第2s内通过的位移是()A.0.5m B.1.5m C.2.0m D.3.5m17.在一次常规体检中,某运动员心电图记录仪的出纸速度(纸带移动的速度)是2.0cm/s,下图每格边长是0.5cm,由此可知他的心率为:A.约100次/分B.约75次/sC.约80次/sD.约60次/分18.在下述问题中,能够把研究对象看做质点的是( )A.研究航天员翟志刚在太空出舱挥动国旗的动作B.用GPS确定打击海盗的“武汉”舰在大海中的位置C.将一枚硬币用力上抛,猜测它落地时正面朝上还是反面朝上D.欣赏进行花样滑冰的运动员的优美动作19.静止在斜面上的重物的重力可以分解为沿斜面方向向下的分力F1和垂直于斜面方向的分力F2,关于这两个分力,下列的说明正确的是()A .F 1作用在物体上,F 2作用在斜面上B .F 2的性质是弹力C .F 2就是物体对斜面的正压力D .F 1和F 2是与物体的重力等效的力,实际存在的就是重力 20.下列说法正确的是A .自由下落的石块速度越来越大,说明石块所受重力越来越大B .在空中飞行的物体不受重力作用C .一抛出的石块轨迹是曲线,说明石块所受的重力方向始终在改变D .将一石块竖直向上抛出,在先上升后下降的整个过程中,石块所受重力的大小与方向都不变二、多选题21.某升降机用绳子系着一个重物,以10 m/s 的速度匀速竖直上升,当到达40 m 高度时,绳子突然断开,重物从绳子断开到落地过程(不计空气阻力,重力加速度g 取10 m/s 2)( )A .距地面的最大高度为45 mB .在空中的运动时间为5 sC .落地速度的大小为10 m/sD .落地速度的大小为30 m/s22.如图所示,斜面体A 静止在水平面上,质量为m 的滑块B 在外力1F 和2F 的共同作用下沿斜面向下运动,当1F 方向水平向右,2F 方向沿斜面向下时,地面对斜面体摩擦力的方向水平向左,则下列说法正确的是( )A .若只撤去1F ,在滑块B 仍向下运动的过程中,A 所受地面摩擦力方向可能向右 B .若只撤去2F ,在滑块B 仍向下运动的过程中,A 所受地面摩擦力方向可能向右C .若只撤去1F ,在滑块B 仍向下运动的过程中,A 所受地面摩擦力减小D .若同时撤去1F 和2F ,滑块B 所受合力方向一定沿斜面向下23.如图所示,水平面上等腰三角形均匀框架顶角30BAC ∠=︒,一均匀圆球放在框架内,球与框架BC 、AC 两边接触但无挤压,现使框架以顶点A 为转轴在竖直平面内顺时针方向从AB 边水平缓慢转至AB 边竖直,则在转动过程中( )A.球对AB边的压力先增大后减小B.球对BC边的压力先增大后减小C.球对AC边的压力一直增大D.球的重心位置一直升高24.如图所示,水平地面上固定有两块木板AB、BC,两块木板紧挨在一起,木板AB 的长度是BC的3倍.一颗子弹以初速度0v从A端水平射入木板,并恰能从C端射出,经历的时间为t,子弹在木板中的运动可以看成是匀减速运动,则下列说法中正确的是()vA.子弹到B点的速度为04vB.子弹到B点的速度为02tC.子弹从A到B的时间为4tD.子弹从A到B的时间为225.如图所示,两个相似的斜面体A、B在竖直向上的力F的作用下静止靠在竖直粗糙墙壁上.关于斜面体A和B的受力情况,下列说法正确的是()A.A一定受到四个力B.B可能受到四个力C.B与墙壁之间一定有弹力和摩擦力D.A与B之间一定有摩擦力三、实验题26.某同学在“用打点计时器测速度”的实验中,用打点计时器记录了被小车拖动的纸带的运动情况,在纸带上确定出 A、B、C、D、E、F、G共 7 个计数点。
其相邻点间的距离如图所示,每两个相邻的测量点之间的时间间隔为 0.10s。
(本题计算结果均保留 3 位有效数字)(1)在实验中,使用打点计时器操作步骤应先_________再_______。
(选填“释放纸带”或“接通电源”)(2)试根据纸带上各个计数点间的距离,计算出打下B、C、D三个点时小车的瞬时速度,并将各个速度值填入表格中____、___、______.(3)将B、C、D、E、F各个时刻的瞬时速度标在如图所示的直角坐标系中,并画出小车的瞬时速度随时间变化的关系图线____。
27.小华同学在做“研究匀变速直线运动”实验中,将打点计时器固定在某处,在绳子拉力的作用下小车拖着穿过打点计时器的纸带在水平木板上运动,如图所示。
由打点计时器得到表示小车运动过程的一条清晰纸带的一段。
如图所示,在打点计时器打出的纸带上确定出八个计数点,相邻两个计数点之间的时间间隔为0.1s,并用刻度尺测出了各计数点到0计数点的距离,图中所标数据的单位是cm.(1)根据纸带提供的信息,小华同学已知计算出了打下1、2、3、4、5这五个计数点时小车的速度,请你帮助他计算出打下计数点6时小车的速度6v __________m/s(保留3位有效数字).计数点123456/st0.10.20.30.40.50.6 ()1⋅0.3580.4000.4400.4850.530/v m s-(2)现已根据上表中的v、t数据,作出小车运动的v t-图象,如图所示。
根据v t-图象v=___m/s;(保留2位有效数字)加速度可知,在打0计数点时,小车的速度a=____2m/s.(保留2位有效数字)28.打点计时器是高中物理学中重要的物理实验仪器,在如图中甲、乙两种打点计时器是高物理实验中常用的,请回答下面的问题:(1)乙图是_____(填“电磁”或“电火花”)打点计时器,电源采用的是_____(填“交流4-6V”或“交流220V”)。