阶段测试6

2023-2024学年河南省天一大联考阶段性测试(六) 理综生物试题1.蛋白质是生命活动的体现者。

下列有关叙述正确的是（）A．人体内所有蛋白质都由基因控制合成，且组成元素相同B．构成大肠杆菌染色体的组蛋白在细胞中游离的核糖体上合成C．蛋白质具有催化、免疫、调节等多种功能，但不能作为能源物质D．生长激素以胞吐方式进行跨膜运输的过程中需要膜蛋白的参与2.河南省地处亚热带和暖温带，是南北过渡地带，截至目前，全省共建立各类自然保护区30处、森林公园132处、湿地公园116处、地质公园32处、风景名胜区35处。

2013—2023年间，科考队共发现红腹角雉、红胸黑雁等40余个稀有物种，其中植物新变型1种，属于新物种。

某湿地公园中存在复杂的食物网，其中一条食物链为植物甲→动物乙→动物丙。

下列有关叙述正确的是（）A．自然条件下，新变型植物种群与其原野生植物种群间可进行基因交流B．建立自然保护区、湿地公园、植物园等是对生物多样性最有效的保护C．通过对科考数据的分析和处理，可以了解自然保护区内的物种丰富度D．乙的同化量远小于甲同化量的1/10，主要原因是部分能量以热能形式散失3.为验证药物D可通过影响下丘脑体温调节中枢来降低体温，科研人员以发热模型鼠为材料进行了相关实验，实验处理及结果如表所示。

下列相关分析错误的是（）B．发热模型鼠体温维持在39℃时，其机体产热量大于散热量C．第2组发热模型鼠经药物D处理后可能出现皮肤血管舒张、血流量增大D．依据实验结果可证明药物D通过影响下丘脑体温调节中枢来降低体温4.实验技术与方法在生物学研究中有着极其重要的作用，高中生物学涉及的实验技术与方法主要有：①同位素标记法、②荧光染料标记法、③染色观察法、④差速离心法与密度梯度离心法、⑤样方法、⑥标记重捕法、⑦取样器取样法等。

下列相关说法错误的是（）A．①②均可用于物质的示踪或定位B．③主要用于检测或鉴定物质的含量C．分离各种细胞器可用④中的差速离心法D．⑤⑥⑦均可估算统计对象的数量或密度5.某些动物的肝细胞中存在两种天然的能识别终止密码子UGA的校正tRNA，这两种tRNA的反密码子序列分别为C m CA、NCA（C m和N为修饰碱基），两者均携带色氨酸，其含量是总色氨酸tRNA的1%～3%。

人教版九年级化学全一册阶段检测六酸和碱盐化肥化学与生活(时间:90分钟满分:100分)可能用到的相对原子质量:H 1 C 12N 14O 16Cl 35.5Ca 40一、选择题(每小题3分,共45分)1.如图所示A、B、C、D是两圆相交的部分,分别表示指示剂与酸、碱作用时所显示的颜色,其中不正确的是()A.紫色B.蓝色C.红色D.无色解析:A是石蕊与酸两圆的相交部分,紫色石蕊溶液遇酸性溶液变红色。

答案:A2.类比是研究物质的常用方法之一,可预测许多物质的性质。

但类比是相对的,不能违背客观实际。

下列各说法中正确的是()A.打开浓盐酸的试剂瓶会产生白雾,打开浓硫酸的试剂瓶也会产生白雾B.氢氧化钠易溶于水,氢氧化钙也易溶于水C.铁能与稀硫酸反应生成氢气,铜也能与稀硫酸反应生成氢气D.稀盐酸能使紫色石蕊溶液变红色,稀醋酸也能使紫色石蕊溶液变红色解析:浓硫酸不易挥发,打开浓硫酸的试剂瓶不会产生白雾,A项错误;氢氧化钠易溶于水,氢氧化钙微溶于水,B项错误;铁能与稀硫酸反应生成氢气,铜不能与稀硫酸反应生成氢气,C项错误;稀盐酸能使紫色石蕊溶液变红色,稀醋酸也能使紫色石蕊溶液变红色,D项正确。

答案:D3.下列物质存放在烧杯中一段时间后,质量变大且变质的是()①浓盐酸②浓硫酸③烧碱④食盐⑤生石灰⑥稀硫酸A.①⑥B.②③⑤C.③⑤D.②③④解析:浓盐酸易挥发,质量减轻;浓硫酸吸水质量会变大,但没有生成新物质;烧碱吸收空气中的水分和二氧化碳,质量增加且变质;食盐质量不变;生石灰与水和二氧化碳反应,质量增加且变质;稀硫酸不变,C项正确。

答案:C4.实验室有三瓶化肥未贴标签,只知道它们分别是碳酸氢铵(NH4HCO3)、氯化铵(NH4Cl)和尿素[CO(NH2)2]中的一种,为鉴别三种化肥,某同学分别取少量样品并将其编号为A、B、C,进行如下实验(此处箭头表示得出实验结论)。

根据上述实验,下列说法不正确的是()A.B物质为碳酸氢铵B.A物质为尿素,属于有机物C.常温下如要鉴别B、C两种样品,能采取闻气味的方法D.如果实验Ⅱ中B、C两种样品没有另取,则会使检验结果不准确解析:因为碳酸氢铵与盐酸反应产生氯化铵、水、二氧化碳,氯化铵与盐酸不反应,所以B物质为碳酸氢铵,A项正确;碳酸氢铵(NH4HCO3)、氯化铵(NH4Cl)和尿素[CO(NH2)2]三种物质中,加熟石灰无刺激性气味的是尿素,而碳酸氢铵和氯化铵中含有铵根离子,会和熟石灰反应产生有刺激性气味的氨气,故A物质是尿素,属于有机物,B项正确;因为碳酸氢铵、氯化铵都是铵态氮肥,但是碳酸氢铵能分解,而氯化铵常温不分解,所以能采取闻气味的方法鉴别,C项正确;碳酸氢铵与盐酸反应产生氯化铵、水、二氧化碳,氯化铵与盐酸不反应,所以只要含有碳酸氢铵和氯化铵,就能通过加入盐酸的方式来鉴别,D项错误。

人教版英语七年级下册阶段复习测试卷Unit 6（含答案）[时间：120分钟满分：150分]卷Ⅰ第一部分听力(30分)Ⅰ.听5个句子，从A、B、C三个选项中选择最佳应答语。

每个句子听一遍。

(共5小题，每小题1分) （）1. A. Yes, I can. B. Yes, I am. C. I like computers.（）2. A. On Friday. B. At 3：00. C. No, I don’t.（）3. A. By bus. B. About 300 meters. C. For about 30 minutes.（）4. A. That sounds great. B. You’re welcome. C. OK. I know.（）5. A. Yes, they are. B. They like singing. C. No, they can’t.Ⅱ.听5段短对话，从A、B、C三个选项中选择最佳答案。

每段对话听两遍。

(共5小题，每小题1分) （）6.What does the boy usually do at 6:30 a.m.?A. He runs.B. He gets up.C. He has breakfast.（）7. What time does Ricky have dinner ?A. At six in the morning.B. At six in the evening.C. At eight in the evening.（）8. What does the boy want to know?A. The girl’s phone number.B. The girl’s e-mail address.C. The girl’s school address.（）9. What does the girl think of the tigers?A. They are cute.B. They are funny.C. They are scary.（）10. Where does Jenny usually have dinner?A. At home.B. In her school.C. In her grandparents’ home.Ⅲ. 听1段长对话，从A、B、C三个选项中选择最佳答案。

牛津英语译林版6A Unit6 Keep our city clean 单元测试提优试卷一：单词辩音（5分）1.（）A . messy B. centre C. eve D. many2.（）A. great B. sweater C. bread D. weather3.（）A. garden B. warm C. plant D. farm4.（）A. dirty B. together C. shirt D. work5.（）A. cook B. good C. food D. book二：英汉互译（10分）1.保持我们的城市洁净2.汽车尾气3.坐地铁上学4.又脏又乱5.步行回家6.move some factories away from our city7.these pictures of our city8. put the rubbish in the bin9.slip on the banana skin 10. make the air dirty三：单项选择(10分)1.My father usually goes to work by ________ bus, but sometimes he rides ________bike towork.A. a; aB. the; theC. /; aD. the; /2.—Itˈs hard to keep the house _________ with three kids.—I think so.A. cleaningB. to cleanC. cleanedD. clean3.There is water on the ground.A. too manyB. too muchC. much tooD. a lot4.—______do you go to school every day?—By bike．A. WhenB. WhyC. HowD. What5.Give the book _____me，please．A. onB. toC. inD. of6.Your room is dirty. You should ________ right now.A. clean it upB. turn it upC. give it upD. look it up7.I often get some birthday presents. The presents always make me ________ and I like them.A. sadB. happyC. busyD. angry8.To keep healthy, Tony. ________ in the playground for half an hour every morning.A. drivesB. studiesC. runsD. calls9.There is a flower on the floor. Would you please ?A. pick up itB. pick up themC. pick it upD. pick them up10.—Did you _____ the bus to the zoo?—Yes, we went there _____ bus.A. take; byB. took; tookC. took; takeD. took; by四：选择合适的词组的适当形式填空，有一项是多余的（5分）1.My mother usually __________our house with me on Sunday afternoon.2. The cans and rubbish _________the street _________________.3.What can we do ____________our classroom __________?4. Helen comes to school __________.5. ____________ can make our city clean and beautiful.五：词汇（20分）A：依据首字母提示或者单词，写出单词的正确形式1. The toys in the room make the room dirty and m_________.2.He s_______ on any icy ground, he couldn’t get up.3.The fish in the dirty river are all d_______.4.Ants can s_______ things very well.5.Don’t t_______ the things out of the window, it’s dangerous.6.Look, there is too much paper on the ground, please pick _______(it) up.7.--How many _______(factory) are there in your city?—I don’t know.8. Last Friday, it was ________(sun) , we all went to the park for a picnic.9. Please look at ________(these) picture of our classroom, it is very nice.10.It’s time for cl ass, we all should keep ________(quietly).B：用所给动词的正确形式填空1. ________(keep) healthy , I run to school every day.2. What ________(make) your hands so dirty?3. I am very happy ________(hear) that good news.4. Look, Mary with her friends _________(fly) kites over there.5. We _________(move) house last week.6.—Who ________(help) you with your homework yesterday?—My mother did.7. It _______(be) rainy yesterday, I had ________(take) a bus to school.8. It’s Bob’s turn _________(clean) the blackboard.9. What can we do ________(write) carefully?六：对话填空（5分）Harry: Hello, Harry speaking.Becky: Hi, Harry. It's Becky. (1)Harry: Great, thanks.Becky: Harry, how's the weather in Jina n now?Harry: (2)Becky: Well, you mean it doesn't rain in our city?Harry: Yeah. (3)Becky: That's a problem（问题）. (4) So people must make good use of water and try to save water.Harry: You are right. And I heard the water of the Changjiang River had already been moved to Jinan. Becky: That's great. With more water I believe（信任）you city is becoming more beautiful. (5)Harry: I'm looking forward to your coming.A. It rains less（较少）in Jinan this year.B. It's windy, sunny and dry.C. How’s it going?D. Everything needs water.E. I’d like to visit Jinan very soon.七：句型转换（10分）1. Put the rubbish on the floor. (改为否定句)________ __________ the rubbish on the floor.2. I usually put my rubbish in the bin. (改为一般疑问句)________ __________usually put your rubbish in the bin?3. We can put the toys away to keep the room clean. (对画线部分提问)________ __________ we________ __________ __________the room clean?4. Rubbish makes the park dirty. (对画线部分提问)_________ ________________the park dirty?5. She was sad because she lost her bag. (对画线部分提问)________ __________ she__________?6. Nancy goes to school by metro every day. (改为同义句)Nancy _________the_________ ________school every day.7. They threw some rubbish in the park last Sunday. (改为否定句)They________ _________ _________rubbish in the park last Sunday.八：完型填空（10分）Many people don't like（1 ）______ at home on holidays．They often want to(2) to see something different or something exciting．So people from the country go to the city and people from the city go to the country for holidays．During th e holidays，trains，buses and planes are all very busy．It is hard(3) train tickets（票）or air tickets．Many people take cars or(4) for traveling．Last May Day my family went to the country(5) car for our holidays．There was too much traffic onthe road，so we had to move very(6)．It took（7 ）______ about an hour to get out of the town．After some time，we came to a farm．It was clean and beautiful．We thought this was a good place for a picnic，so we(8) and took the food，fruit and drinks out of the car．We(9) and began to eat．Suddenly a strong wind blew and soon it started to rain．We had to run back to our car and had our picnic in the car．Then we drove back home．What(10) trip（旅途）!1. A. stay B. to stay C. stays D. stayed2. A. go on B. go out C. going out D. went out3. A. to buy B. buying C. buys D. bought4. A. bus B. on buses C. by bus D. buses5. A. on B. by C. for D. in6. A. slowing B. slowly C. slowed D. slows7. A. we B. me C. us D. our8. A. stops B. to stop C. stopping D. stopped9. A. sat down B. sit on C. sit down D. sitting down10. A. an interested B. bad C. an interesting D. good．九：阅读理解（10分）AOur school is a green school．What makes 1t green？First，we have a lot of trees．There are trees in front of and behind every building．Some trees are green only in spring and summer．And some are green all year round．The trees make our school look like a big forestAnd our school is a green one because we "go green" "How do we go green We have two green days every month．On green days，no students or teachers go to school by car．And we have clean ﹣up Day every month．That day，students g o to streets to pick up rubbish．Also，we have tree ﹣planting Day every spring．We plant young trees on hills．We have three green clubs The members of the clubs look after those trees well．Green is not only a colour．It is about life．Please go green with us and make the world a more beautiful place．1. How many green days do we have every month____A. One dayB. Two daysC. Three days．D. Four days2. Students go to streets to do some cleaning on____A. green daysB. tree﹣planting DayC. clean﹣up DayD. Saturdays and Sundays3. ____look after the young trees well．A. TeachersB. All studentsC. ParentsD. Green clubs4. The writer mainly wants to tell us____．A. her school is very beautifulB. there are many trees around her schoolC. we should do something to make the world beautifulD. she likes her school very much5. What is the best title（标题）for the passage？____A. Going GreenB. Green DaysC. Planting TreeD. Love Your School．BThe COVID-19 pandemic(新冠肺炎疫情) makes our lives very different. Some of us change（转变）our living habits. Some learn how to cook. And more people begin to love riding bikes.Yang Xiaomeng lives 11 kilometers（公里）away from her working place in Beijing. She rides to work for the last three months. "I usually take the metro before the COVID-19 outbreak（爆发）. But now riding a bike is a good way," she says.Yang finds that cycling（骑自行车）is more relaxing（放松的）and enjoyable（开心的）than taking the crowded （拥挤的）metro. "There's more fresh air on the road. It's also a good way to stay healthy(保持健康)," she says.Many people begin riding bikes during the pandemic（大流行期间）. The number of riders on Bejing's bike- -only lane(车道) from Huilongguan to Shangdi increases(增加) by 17.6 percent.（百分比）In other cities around the world, biking is also popular. London closes large parts of the city to cars so that（以便）people can ride safely. New York, Berlin and Montreal build new bike lanes. These cities think that if there are safe and wonderful places for riding, more people will ride bikes in the future instead of(而不是) driving. This will make the cities green and clean and their people happy and healthy.6. In Paragraph 1, the writer tries to _____ .A. tell us what she does during the epidemicB. show us better ways to stay healthyC. tell us what should do during the epidemicD. show the changes the epidemic brings to our life7. How does Yang Xiaomeng go to work now?A. By subway.B. By bus.C. By bike.D. By car.8. According to the passage, Yang Xiaomeng may agree （同意）that______.A. taking the metro is relaxingB. riding a bike is healthyC. bike-only lanes are always crowdedD. there is no fresh air on the metro9. What does the underlined word “This” refer to in the last paragraph?A. Driving a car.B. Riding a bike.C. Building more new bike lanes.D. Closing large parts of the city to cars.10.What would be the best title for the text?A. The Traffic in CitiesB. Traffic RulesC. Riding Bikes Is PopularD. How to Keep Safe十：首字母填空（10分）Dear James,My name is Bob. I live in Toronto, Canada. Toronto is a beautiful and c (1) city. It’s a good place for us to l (2) in. My house is behind the airport（机场）. In my neighborhood（街区）, there is a big p (3) . It’s in the center of my neighborhood. In it, there are many t (4) . The trees are always green all year round. When it is s (5) and warm, my sister and I go to the park and lie (躺) on the grass(草). I often r (6) some storybooks and my sister just l (7) to music. In s (8) , we often go to the beach(海滩) to play volleyball. When we are having a great time p (9) volleyball, our mother is surprised(惊异的). Because it is really hot.I hope you can come to my home o (10) holiday!Bob十一：书面表达（5分）最近Jim所在班级的卫生状况不好，他感到很焦急。

宏观经济学阶段测试题（六）一、单项选择（共10小题，每小题2分，总计20分）1.自然失业率（）A、恒为零B、依赖于价格水平C、是经济处于潜在产出时的失业率D、是没有摩擦性失业时的失业率2.根据古典二分法，货币供给（）A、不影响对名义和实际可变因素的决定因素的理解B、决定名义的但不是实际的可变因素C、决定实际的但不是名义的可变因素D、同时决定实际的和名义的可变要素3.下列命题错误的是（）A、NNP=GDP - 折旧费B、NI=NNP - 企业间接税–企业的转移支付C、NDP=GDP –折旧费D、GNP=GDP + 该国海外净要素收入4.假设现在的CPI是400,1969年的CPI是100。

那么根据CPI，今天的100美元的购买力相当于（）A、1969年的25美元B、1969年的40美元C、1969年的55美元D、1969年的70美元5.资本深化是指（）A、增加每单位资本的工人数B、减少人均资本量C、增加人均资本量D、政府在基础设施的投资6.利率和收入的组合点出现在IS曲线右上方、LM曲线的左上方的区域中，则表示（）A、投资小于储蓄，且货币需求小于货币供给B、投资小于储蓄，且货币供给小于货币需求C、投资大于储蓄，且货币需求小于货币供给D、投资大于储蓄，且货币供给大于货币供给7.下列（）解释了总需求曲线向下倾斜的原因1.较低的物价水平使实际余额增加，因此LM曲线向下移动（右移），且收入水平上升2.较低的物价水平迫使央行增加货币供给，因此，LM曲线向下移动（右移），且收入水平上升3.较低的物价水平迫使政府减少了税收，因此，IS曲线向右移动，且收入水平上升4.以上均正确8.如果国会减少支出以平衡联邦预算，联邦储备局将可以（）以期在保持预算平衡的同时，防止失业和衰退A、增加货币供给B、减少货币供给C、增加税收D、减少支出9.货币供给增加和消费者信心下降将使（）A、产量下降，对利率的影响不确定B、产量增加，利率下降C、利率上升，对产量的影响不确定D、利率下降，对产量的影响不确定10.税收（）A、在衰退时倾向于增加，因此总需求曲线右移B、在扩张时倾向于增加，因此总需求曲线右移C、在衰退时倾向于减少，因此总需求曲线右移D、在扩张时倾向于减少，因此总需求曲线右移二、名词解释（共5小题，每小题5分，总计25分）1.通货紧缩缺口：2.金本位制：3.流动性：4.货币的交易需求：5.IS曲线：三、简答题（共3小题，总计25分）1.实际经济周期理论是怎样解释经济周期波动的？2.实际经济周期理论是政策含义是什么？3.宏观经济政策无效的原因主要有哪些？四、计算分析（共2小题，每小题15分，总计30分）1.已知某国的投资函数为I=300-100i，消费函数为C=200+0.2Y，货币需求为L=0.1Y-50i，该国的货币供给量M=250，政府购买G=100。

一、选择题1．Tony is interested in ________. He almost swims every day in summer.A．swim B．swimming C．to swim D．swiming B解析：B【详解】句意：Tony对游泳感兴趣，他在夏天几乎每天都游泳。

句子中用到短语be interested in…对…感兴趣的，in是介词，所以后要跟动名词，且swim的动名词要双写m,加ing. 故选B。

2．（题文）My mother is _______ busy _______ she can’t cook for us at noon.A．so; that B．such; that C．too; to D．as; as A解析：A【解析】句意：我母亲如此忙以至于她在中午无法给我们做饭。

根据题干可知，so+形容词/副词+that+从句“如此……以至于……”。

such+a/an+形容词+单数名词+that+从句或者such+形容词+可数名词复数/不可数名词+that+从句，“如此……以至于……”。

too+形容词/副词+to dost h“太……而不能做某事”；as+形容词/副词+as“和……一样……”。

本句是一个结果状语从句。

故排除CD。

根据busy是形容词可知，而such后面需跟名词，故排除B。

故选A。

3．（2017﹒苏州）—Sorry, I’ve forgotten your name. Can you ____________ me?—I’m Daniel.A．remind B．receive C．respect D．remember A解析：A【解析】句意：——对不起，我忘了你的名字。

你能提醒我吗？——我是丹尼尔。

A. remind 提醒，使记得；B. receive收到；C. respect尊重；D. remember记得，想起。

根据I’ve forgotten your name.可知我忘记了，因此需要对方提醒，故选A。

2024-2025学年粤教版(2019)七年级科学下册阶段测试试卷6考试试卷考试范围：全部知识点；考试时间：120分钟学校：______ 姓名：______ 班级：______ 考号：______总分栏一、单选题(共7题，共14分)1、小明某一天陪北方客人到火锅店大吃了一顿，觉得味道很好，可是接下来的几天，吃其他饭菜都觉得没有味道，这是因为()A. 其他饭菜没有火锅的辣B. 吃了火锅后的余味还没有散去C. 吃了火锅后烫伤了味蕾D. 其他饭菜的味道没有火锅的浓2、下列现象中，属于光的色散的是（）A. 霓虹灯的灯光五颜六色B. 彩色电视机的荧屏向面五彩缤纷C. 色彩丰富的中国水彩画D. 雨后天空出现美丽的彩虹3、关于水池中的水结冰先后，下列说法正确的是( )A. 池底的水先结冰B. 水池中部的水先结冰C. 表面的水先结冰D. 全池的水同时结冰4、如图所示，能正确描述匀速直线运动各物理量之间关系的图象是（）A.B.C.D.5、下列说法中正确的是（）A. 凸透镜只对平行光有会聚作用B. 反射光线与入射光线不在同一平面内C. 一束太阳光可以通过三棱镜分解为不同的色光D. 人离平面镜越远，人在平面镜中所成的像就越小6、声音在固体、液体中比在空气中传播得（）A. 快B. 慢C. 一样快D. 无法比较7、有关显微镜使用的叙述，正确的是（）A. 转动粗准焦螺旋使镜筒上升，转动细准焦螺旋使镜筒下降B. 调节反光镜对光，光线较强时用凹面镜，光线较弱时用平面镜C. 观察微小结构时，应先使用低倍镜，再使用高倍镜D. 物像的放大倍数=物镜的放大倍数+目镜的放大倍数评卷人得分二、填空题(共9题，共18分)8、如图所示，这块碎石的体积是____厘米3，量筒读数时，视线要与____处相平。

9、每年的6月6日为全国“爱眼日”．如图表示某两人看物体时的光路图，要在视网膜上成清晰的像，甲需要配戴____镜，乙需要配戴____镜。

10、甲、乙两人从相距15km的两地同时出发，相向而行，甲的速度为3km／h，乙的速度为2km／h，甲带一条狗，同甲一起出发，狗的速度4km／h，狗碰到乙后又往甲方向走，碰到甲后它又往乙方向走，这样持续下去，直到甲乙相遇时，这条狗一共走了____km。

一、选择题1．The new store is close ________ my home. I often go there.A．from B．toC．of D．at B解析：B【解析】【详解】句意：那家新的商店离我家很近。

我经常去那里。

考查介词短语。

from来自；to向；of……的；at在。

短语be close to：离……近，靠近，故选B。

2．—Where will you live in ten years，Helen?—I'll ________ stay in Beijing，but I'm not sure about it.A．seriously B．beautifully C．carefully D．probably D解析：D【解析】【详解】句意：——十年后你会住在哪里，海伦？——我可能会留在北京，但我不确定。

A. seriously 认真地；B. beautifully漂亮地；C. carefully小心地；D. probably可能地。

由句子but I'm not sure about it. 但我不确定。

可知用probably表示推测。

故选D。

3．We are going to Japan ________ the beginning of July.A．for B．in C．at D．on C解析：C【解析】【详解】句意：在七月初，我们打算去日本。

A. for为了；B. in在……里面；C. at在……；D. on在……上；at the beginning of…表示在……开始。

根据题意，故选C。

4．There's going to ________ in tomorrow's newspapers.A．have something new B．have new something C．be something new D．be new something C解析：C【解析】【详解】句意：明天的报纸上会有新消息。