第一次摸底测试

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【九科精测】2023年中考复习第一次摸底考试英语试卷(湖北武汉)(解析版)

【九科精测】2023年中考复习第一次摸底考试英语试卷(湖北武汉)(解析版)

【九科精测】2023年中考复习第一次摸底考试英语试卷(湖北武汉)英语·全解全析一、听力测试(共三节)第一节(共4小题,每小题1分,满分4分)1.A【原文】My parents will take me to Shanghai Disneyland this summer vacation.2.C【原文】I’m glad to tell you that I’ll visit some places of interest in China this summer.3.B【原文】Excuse me, could you please give me a ride to the airport?4.A【原文】Dad, our team is going to have a basketball game tomorrow.第二节(共8小题,每小题1分,满分8分)5.B【原文】W: We usually use wind and solar power to produce electricity in our hometown. What about you, Eric?M: Water is used to produce electricity in our hometown.6.B【原文】W: Today is Car Free Day. Let’s go to school by bike.M: Sorry. My bike is broken. So we have to walk to school.7.A【原文】M: Is Mike playing computer games now?W: No, he is busy making a model plane. He wants to get the first prize in the competition.8.C【原文】W: What can I do for you?M: I would like a pair of sports shoes, but this pair is 240 yuan, a litter expensive, I think.W: Oh, How about 20% off?M: That would be fine, I will take it.9.B【原文】M: Hey, Lucy. Tom said few words and just sit at his desk all afternoon!W: Oh, really? There must be something wrong with him. That’s not like the Tom we know.10.C【原文】M: Do you know anything about the United Nations?W: Yes. It was founded in 1945 by 50 countries. It has more than 190 member countries now. 11.C【原文】M: My parents tell me the best things in life are free, and I add, “Yeah, yeah, the best things are a new apartment and a shiny new car.”W: Not true. The things that make me happy are the people in my life.12.A【原文】W: I heard you are a fan of the FIFA World Cup. Which team do you like best?M: Of course Germany national football team though Brazil’s was my favorite team in my childhood.第三节(共13小题,每小题1分,满分13分)【答案】13.C 14.B 15.A【原文】M: Hi, Keller. What are you doing these days?W: Hi, Bob. I am still worried about looking for a part-time job. Have you found one?M: Yes, I’ve got one, an assistant job in a supermarket.W: What’s the payment?M: Well, it’s 8 dollars a day.W: Not bad.M: In fact, they need one more person. I believe you are the right person. If you’re interested, I can introduce you to the manager.W: That’s wonderful. I will go there right now and talk to the manager.M: No hurry. You can see him tomorrow. He will come back to Shenzhen tomorrow.W: That’s kind of you, Bob. Thanks a lot.【答案】16.B 17.A 18.C【原文】W: You really don’t look well, Frank. What’s wrong? Do you have a cold?M: No, I just have a bad headache.W: Sorry to hear that. How did you get it?M: In fact, I haven’t got much sleep in the past week, and I feel really tired.W: Why don’t you go to see a doctor?M: Yeah, I think I should. But I have to hand in my report on Thursday. Ms. Jenkins needs it for the meeting next Monday.W: Well, it’s Wednesday today.M: Yes, but I am too tired to finish the report.W: Why don’t you talk to Ms. Jenkins, and ask if you can hand it in on Friday morning?M: That’s a good idea. I’ll make a phone call to her at once.【答案】19.C 20.A 21.C 22.B【原文】M: Now, Susan, you had a few minutes to rest. Can you tell us something about yourself? How old are you and what do you do?W: I’m twenty-two and I am a desk clerk.M: A desk clerk? So you are used to asking people for information.W: Yeah! And sometimes meeting interesting people and answering lots of questionsM: So you love your job! But who taught you to ride bicycle?W: Nobody. I taught myself. I’ve been cycling since I was five.M: And who bought that beautiful racing bicycle for you?W: I bought it myself. I worked overtime.M: Good for you. And what are you going to do now?W: Now? If you mean this minute, I’m going to have a long hot bath.M:You must need to relax. Again, congratulations to you! I’m winner of this year’sLondon-to-Brighton Cycle Race.听下面一段独白,回答23至25三个小题【答案】23.B 24.B 25.C【原文】I’m Susan. I went to Florida in the USA on holiday last summer. I said goodbye to my parents at the airport in London and flew to Miami. I stayed with my aunt Maria. She had a boat and we wanted to go sailing. We had a lovely time sailing! One morning I decided to sit on the side of the boat. Suddenly, I fell off into the sea. I didn’t know how to swim and I began to shout. Then, after a minute I felt something pushing me nearer the boat. It was a dolphin and he was trying to help me! My aunt heard me shout and pulled me back on the boat. I have now learned to swim and been good at swimming. I will always love dolphins!第二部分笔试部分二、选择填空(共15小题,每小题1分,满分15分)26.D【详解】句意:——先生,我可以帮助你吗?——是的。

吉林省东北师范大学附属中学2024-2025学年高三上学期第一次摸底考试英语试卷(含答案)

吉林省东北师范大学附属中学2024-2025学年高三上学期第一次摸底考试英语试卷(含答案)

东北师大附中2024—2025学年上学期第一次摸底考试高三年级(英语) 科试卷考试时长:120 分钟满分: 150分第Ⅰ卷选择题(满分95分)第一部分听力(共两节,满分30分)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,并标在试卷的相应位置。

听完每段对话后,你将有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. What are the speakers doingA. Studying a book.B. Reading a letter.C. Collecting money.2. What is the woman looking forA. Her hat.B. Her coat.C. Her gloves.3. What kind of paper are the speakers going to writeA. A historical one.B. A biological one.C. A geographical one.4." What will the weather be like tomorrow morningA. Windy.B. Rainy.C. Sunny.5. Why does Fred decide to quitA. He often works overtime.B. He needs to earn more money.C. He doesn't get on well with his colleagues.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。

每段对话或独白后有几个小题,从题中所给的A、B、C三个选项选出最佳选项,并标在试卷的相应位置。

听每段对话或独白前,你将有时何阅读各个小题,每题5秒钟:听完后,各小题将给出5秒钟的作答时间。

2024届新高三开学摸底考试卷

2024届新高三开学摸底考试卷

2024届新高三开学摸底考试卷(全国通用,新教材)化 学(考试时间:75分钟 试卷满分:100分)注意事项:1.答卷前,考生务必将自己的姓名、考生号等填写在答题卡和试卷指定位置上。

2.回答选择题时,选出每小题答案后,用铅笔把答题卡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。

可能用到的相对原子质量:H 1 C 12 N 14 O 16 Sr 88 Cu 64 Ti 48第Ⅰ卷(选择题 共42分)一、选择题:本题共14个小题,每小题3分,共42分。

在每小题给出的四个选项中,只有一项是符合题目要求的。

1.我国“嫦娥五号”成功携带月球样品返回地球。

下列有关说法错误的是A .运载火箭使用煤油液氧推进剂,煤油是石油分馏产品,分馏属于物理变化B .探测器装有太阳能电池板,能将太阳能转化为电能C .返回器带回的月壤中含有32He ,它与地球上42He 的性质完全相同 D .嫦娥五号中超声电机的心脏——压电陶瓷是一种无机非金属材料2.科学家利用氦核42He 撞击氮原子,发生反应:4141712181He N O H +→+,下列说法正确的是A .4He 的质子数为2B .153NH 的中子数为9C .172O 和16O 互为同位素D .22H 与12H 化学性质不同3.下列说法正确的是A .NaCl 、HCl 的水溶液都能导电,NaCl 、HCl 属于离子化合物B .CaC 2、CaCl 2都含有离子键和非极性共价键 C .石油分馏、煤的干馏都属于物理变化D .Na 2SiO 3和SiC 都属于无机非金属材料 4.下列图示或化学用语错误..的是 A .羟基的电子式:B .H 2O 的VSEPR 模型:C .Mn 2+的价电子的轨道表示式:D .中子数为5的铍原子:94Be5.对乙酰氨基酚是感冒冲剂的有效成分,其结构简式如图所示。

新华学校六年级第一次摸底考试作文

新华学校六年级第一次摸底考试作文

新华学校六年级第一次摸底考试作文全文共6篇示例,供读者参考新华学校六年级第一次摸底考试作文篇1这学期的开学第一天,就迎来了一场大考:摸底考试。

摸底考试是为了让学生看看寒假自己在家中有没有把上学期知识遗忘,巩固,复习。

可,我就考砸了…….考试时,我非常紧张!试卷发下来后,一时间,“擦!擦!擦!”的声音充满了教室,一时间又特别安静,安静的连一根针掉在地上声音都特别清晰!我只好很快的写,好像是为了完成任务一样,写完后,就马马虎虎的检查了一下,并没有什么题错,只是有一些题的方法忘了,乱写一通!试卷发下来了,才发现,错的题都是会的,而且都是不应该错的,而考的'成绩,都很差。

比如说:数学,一道简单的选择题,7道题错3题;英语,笔试部分就错了好多;语文,判断题,差不多全错!这些错,都是不该错的,而我……现在想起来,唉~寒假时,我就应该多复习,巩固。

考试时,我就该认真审题,多多思考,反复检查!这都是我的态度问题啊!人,只有失去了才懂得珍惜。

新华学校六年级第一次摸底考试作文篇2新华学校六年级第一次摸底考试大家好,我是新华小学六年级的小明。

今天,我要和大家分享一下我在新学期第一次摸底考试的经历。

开学第一周就迎来了人生的重大考验——期中摸底考试!其实就连暑假作业我也没写完呢,谁知道开学就要面对如此艰巨的任务呢?妈妈一看到学校发来的考试通知,脸上写满了期待,连连叮嘱我一定要好好准备。

我却有些闷闷不乐,只觉得暑假过得太快,还没玩尽兴呢,就要投入到紧张的学习生活中去了。

不过想到六年级可是小学的最后一年,也是最关键的一年,如果连这次小小的摸底考试都应付不了,那我今后的升学之路可就堪忧了。

于是,我硬着头皮开始复习功课。

妈妈给我制定了详细的复习计划,每天都规定了复习的科目和作业量。

我不得不每天遵照计划新华学校六年级第一次摸底考试作文篇3题目:难忘的一个暑假暑假可真是期待已久的节日啊!终于可以不用再早早起床,不用再背着沉重的书包上学了。

2024-2025学年浙江省宁波鄞州区重点中学高中新课标初三第一次摸底测试语文试题含解析

2024-2025学年浙江省宁波鄞州区重点中学高中新课标初三第一次摸底测试语文试题含解析

2024-2025学年浙江省宁波鄞州区重点中学高中新课标初三第一次摸底测试语文试题注意事项: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,再选涂其它答案标号。

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。

一、积累1.下列句子有语病的一项是()A.看了有关中学生、大学生心理承受能力脆弱的报道,暴露出了教育中存在的不足之处,发人深思。

B.森林是发展生态旅游的主体。

我国幅员辽阔,森林面积达15890多公顷,绝对数量居世界第五,物种资源丰富,景观多姿多彩。

C.由于时代、职业、年龄等的不同,人们说话的内容、语汇乃至语气、语调也各不相同。

D.那水壶从探险队员们手里依次传递开来,沉沉的,一种充满生机的幸福和喜悦在每个队员濒临绝望的脸上弥漫开来。

2.下列句子没有语病的一项是()A.昌赣高铁建成通车后,南昌到赣州的运行时间比原来缩短了一倍。

B.游览者来到拙政园里,还有谁心里想着口头说着“如在画图中”的?C.党的十九大描绘了2035年基本建成法治国家、法治政府、法治社会的宏伟蓝图。

D.从日记中,让人们察觉到斯科特等人是如何尽量掩饰着自己的恐惧的。

3.下列文学常识、文化常识表述有误的一项是()A.成语“教学相长”“宁静致远”“三顾茅庐”分别出自《礼记》、诸葛亮的《诫子书》、罗贯中的《三国演义》。

B.《论语》《大学》《中庸》《孟子》合称“四书”,复旦大学校训“博学而笃志,切问而近思”出自儒家经典《论语》。

C.《诗经》分为风、雅、颂三个部分。

《诗经》里经常使用比、兴手法。

比,即比喻;光,指先说别的事物,引出所吟咏的对象。

D.古人讲究礼节,对对方或对方亲属用敬称,如“令郎”“家君”“贤弟”,对自己一方则用谦辞,如“尊君”“舍妹”“小儿”等。

4.依次填入下列句子横线处的词语,最恰当的一项是( ) 岭南艺术展开设了雕塑展览专场,展出的大量雕塑作品非常精美,尤其是木雕,以其的雕刻技艺吸引了众多参观者。

高三化学第一次摸底测试

高三化学第一次摸底测试

学大教育高三化学第一次摸底测试命题人:学大教育五角场校区——吴伟民学生姓名: 得分:1.化学用语及其规律1.(08上海卷)化学科学需要借助化学专用语言来描述,下列有关化学用语正确的是( )解析:CO 2的中的C 最外层上只有4个电子正确的电子式为: 。

答案:B2.(08上海卷)下列化学式既能表示物质的组成,又能表示物质的一个分子的是( )A .NaOHB .SiO 2C .FeD .C 3H 8解析:NaOH 是离子晶体,SiO 2是原子晶体,Fe 为金属晶体,它们均只表示物质的组成,不能表示物质的一个分子。

答案:D3.(08上海卷)下列关于化学学习和研究的说法错误的是( )A .化学模型有助于解释一些化学现象B .质量守恒定律是大量实验事实的总结C .化学家提出的假设都能被实验证实D .化学基本原理的应用是有一定条件的解析:化学家提出的假设只要是正确的,随着科学的发展可能被实验证实,也可能不能证实。

答案:C4.(08广东卷)某合作学习小组讨论辨析以下说法:①粗盐和酸雨都是混合物;②沼气和水蒸气都是可再生能源;③冰和干冰既是纯净物又是化合物;④不锈钢和目前流通的硬币都是合金;⑤盐酸和食醋既是化合物又是酸;⑥纯碱和熟石灰都是碱;⑦豆浆和雾都是胶体。

上述说法正确的是( )A .①②③④B .①②⑤⑥C .③⑤⑥⑦D .①③④⑦解析:1.显然正确;2.沼气属于↑↑可再生资源。

水煤气由炽热的煤同水蒸气反应制得,而煤为不再生资源,所以水煤气为不可再生资源,故错误; 3.冰为固态水,干冰为固态CO 2,均为纯净物和化合物,正确; 4.显然正确。

5.盐酸和食醋为混合物,不是化合物,错误; 6.纯碱为Na 2CO 3不是碱,错误; 7.豆浆和雾都能发生丁达尔现象,均属于胶体,正确。

综上所述,选D 。

答案:D5.(08江苏卷)下列现象或事实可用同一原理解释的是( )A .浓硫酸和浓盐酸长期暴露在空气中浓度降低B .氯水和活性炭使红墨水褪色C .漂白粉和水玻璃长期暴露在变质D .乙炔和乙烯使溴的四氯化炭溶液褪色解析:选项A 中浓硫酸的浓度下降,是由于浓硫酸具有吸水性,而盐酸浓度的下降是由于浓盐酸具有挥发性;选项B 中氯水使红墨水褪色,是由于氯水中含有HClO ,HClO 具有氧化性,破坏有色物质的结构,而活性炭使C O O红墨水褪色,是由于活性炭具有吸附性,将红墨水吸附在活性炭的表面;选项C 中漂白粉和水玻璃均与空气中的CO 2和H 2O 反应,但漂白粉反应生成CaCO 3和HClO ,HClO 分解生成HCl 和O 2;选项D 中乙烯、乙炔使溴的四氯化碳溶液褪色,乙烯和乙炔与Br 2发生了加成反应,它们的原理相同。

云南省昆明市第一中学2022届高中新课标高三第一次摸底测试英语试卷听力材料及答案

云南省昆明市第一中学2022届高中新课标高三第一次摸底测试英语试卷听力材料及答案

昆明市第一中学2022届高中新课标高三第一次摸底测试英语试卷第一节听下面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,并标在试卷的相应位置。

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。

Text lW: Have you ever considered opening an account to save money?M: No, I never have enough money to put in. I give it all to my wife to spend.W: You should think about it. That way, you'll have more money in the long run. Text 2M: How do you get your hair to be so beautiful? Do you use certain products? Or maybe it's your diet?W: I don't do anything special. I wash it in the shower like everyone else. It must be a gift I have always had.Text 3M: Baseball is so popular in my country. I’ve always preferred other sports, though.W: It barely exists where I'm from, but it doesn't look so hard.M: Well, it's actually pretty complicated if you didn't grow up watching it. It's a great sport, though. You can learn how to play it someday.Text 4M: I really appreciate my grandparents. They come over with groceries all the time.My grandmother also makes me sweaters for the winter.W: I think the older generation is very important. They have a lot of knowledge to pass on to us.Text 5W: Sarah's kids are going to stay here on the weekend. She's going to drop them off on Friday night and pick them up on Sunday night.M: As long as you're OK with that. I won't be back till the day after they leave because of my trip.第二节听下面5段对话或独白。

广西壮族自治区玉林市2024届高三高中毕业班第一次摸底测试数学试题(高频考点版)

广西壮族自治区玉林市2024届高三高中毕业班第一次摸底测试数学试题(高频考点版)

一、单选题二、多选题 1. 的内角A ,B ,C 的对边分别为a ,b ,c ,若,则为( )A .等腰非等边三角形B .直角三角形C .钝角三角形D .等边三角形2. 一电子广告,背景是由固定的一系列下顶点相接的正三角形组成,这列正三解形的底边在同一直线上,正三角形的内切圆由第一个正三角形的点沿三角形列的底边匀速向前滚动(如图),设滚动中的圆与系列正三角形的重叠部分(如图中的阴影)的面积关于时间的函数为,则下列图中与函数图象最近似的是(  )A.B.C.D.3. 复数的辐角的主值为( )A.B.C.D. 4. “”是“直线和直线垂直”的( )A .充分不必要条件B .必要不充分条件C .充要条件D .既不充分又不必要条件5. 在棱长为4的正方体中,点为的中点,则三棱锥的外接球的表面积是( )A.B.C.D. 6.,使成立,则实数的取值范围是( )A.B.C.D.7. 下列说法正确的是( )A .若,则B .若,,则C .若,,则D .若,,则8. 下列命题中是真命题的是( )A .所有三角形的内角和都是180°B .所有素数都是奇数C .有些一元二次方程在实数范围内无解广西壮族自治区玉林市2024届高三高中毕业班第一次摸底测试数学试题(高频考点版)广西壮族自治区玉林市2024届高三高中毕业班第一次摸底测试数学试题(高频考点版)三、填空题四、解答题D .存在一个实数的绝对值不是正数9.已知是关于x的方程的根,则实数______.10.已知的展开式中各项系数和为,则其展开式中的常数项为__________.(用数字做答)11.若,则的取值范围是___________.12. 已知函数,,则的最小值为______.13. 已知两点,动点到点的距离是它到点的距离的倍.(1)设动点的轨迹为曲线,求的标准方程;(2)设直线,若直线与曲线交于两点,当最小时,求直线的方程.14. 已知.(1)求的值;(2)若为第三象限角,求的值.15.已知函数(1)求的值(2)求单调递减区间16. 求下列双曲线的焦点和顶点坐标、实轴和虚轴的长、焦距:(1);(2);(3).。

2024秋季学期九年级第一次摸底测试卷(数学)

2024秋季学期九年级第一次摸底测试卷(数学)

212y x =-1(1)(4)2y x x =-+2024-2025学年第一学期九年级第一次月考数学试卷一、单项选择题:(每小题3分,共30分)1.下列方程中,是关于x 的一元二次方程的有( )A .x (2x ﹣1)=2x 2B .1221=-x x C 0212=x D .ax 2+bx+c=02.下列函数中,不是二次函数的是( ) A. B. C.y=2(x+1)2-4 D.y=(x-2)2 -x 2+14 3.方程x 2=x 的解是( ) A .x=1 B .x=0 C .x 1=1,x 2=0 D . x 1=﹣1,x 2=04.将抛物线y=(x ﹣1)2向左平移3个单位后所得抛物线的解析式为( ) A.y=(x+2)2 B.y=(x-4)2 C.y=x 2+3 D.y=x 2-3 5.用配方法解方程x 2-2x-5=0时,原方程应变形为( ) A .(x+1)2=6 B .(x-1)2=6 C .(x+2)2=9 D .(x-2)2=9 6.方程x2-5x -1=0的根的情况为 ( )A .有两个相等实根B .有两个不等实根C .没有实根D .无法确定 7.等腰三角形两边长为方程x2﹣7x+10=0的两根,则它的周长为( ) A .12 B .12或9 C .9 D .78.二次函数y=ax 2与一次函数y=ax+a 在同一坐标系中的大致图象为( )9.某超市一月份的营业额为200万元,三月份的营业额共288万元,如果平均每月增长率为x ,则由题意列方程应为( ) A .200(1+x)2=288 B .200+200×2x=288 C .200+200×3x=288 D .200(1+2x)=50010.在一幅长80cm ,宽50cm 的矩形风景画的四周镶一条金色纸边,制成一幅矩形挂图,如图所示,如果要使整个挂图的面积是5400cm 2,设金色纸边的宽为xcm ,那么x 满足的方程是( ) A.x 2+130x-1400=0B.x 2+65x-350=0C.x 2-130x-1400=0D.x 2-65x-350=0二、填空题(每小题3分,共24分): 11.若8x 2-16=0,则x 的值是_________.12.抛物线y =(x+3)2的对称轴是直线_________.13.若一元二次方程ax 2+bx+c=0(a ≠0)有一个根为1,则a+b+c=_________ 14.若y =x m -1+2x 是二次函数,则m =________.15.一元二次方程x 2-2x-3=0的一次项系数是 . 16.已知抛物线y=-(x+2)2,当x 时,y 随x 的增大而减小. 17.写出一个经过点(1,1)的二次函数的表达式 。

部编人教版一年级语文上册第一次月考摸底测试及答案(八套)

部编人教版一年级语文上册第一次月考摸底测试及答案(八套)

部编人教版一年级语文上册第一次月考摸底测试及答案说明:本套试卷精心编写了各考点和重要知识点,测试面广,难易兼备,仅供参考。

全套试卷共八卷。

目录:部编人教版一年级语文上册第一次月考摸底测试及答案(一)部编人教版一年级语文上册第一次月考摸底考试及答案(二)部编人教版一年级语文上册第一次月考标准测试卷及答案(三)部编人教版一年级语文上册第一次月考检测卷及答案(四)部编人教版一年级语文上册第一次月考检测卷及答案(五)部编人教版一年级语文上册第一次月考检测卷及答案(六)部编人教版一年级语文上册第一次月考检测卷及答案(七)部编人教版一年级语文上册第一次月考检测卷及答案(八)部编人教版一年级语文上册第一次月考摸底测试及答案一班级:姓名:满分:100分考试时间:90分钟题序一二三四五六七总分得分一、我会读拼音,写词语。

(20分)xuě huā qiū fēnɡ yánɡɡuānɡ zuǒ yòufēn biéɡù xiānɡ yùn dònɡ liánɡ kuai二、比一比,再组词。

(10分)三、读一读,连一连。

(10分)一个蒙蒙的故事一棵孤单的大树一场有趣的细雨一只挺拔的喜鹊四、想一想,选词填空。

(10分)人生最宝贵的是(_______)。

小(______),我最喜欢去公园。

小弟弟太小了,搬这个凳子很(______)。

小猫高兴极了,(______)亲了妈妈一口。

(5)我们用(______)从井里打水,倒进(______)里。

五、照样子,按要求写句子。

(15分)例:小公鸡跟在小鸭子后面。

(偷偷地)小公鸡偷偷地跟在小鸭子后面。

我吃起苹果来。

(高兴地)_____________________________。

2. 王丽低着头说话。

(小声地)______________________________。

3. 小鸭子游到小公鸡身边。

(飞快地)______________________________。

2023届高考广西名校第一次摸底考试试题

2023届高考广西名校第一次摸底考试试题

广西名校高考模拟试卷第一次摸底考试英语注意事项: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,在本试卷上作答无效。

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纹案转涂到答题卡上。

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。

例:How much is the shirt?A. £19.15.B. £9.18.C. £9.15.答案是C。

1. What is the weather like according to the man?A. Clear.B. Cloudy.C. Rainy.2. What does the man mean?A. He wants to keep the chair.B. He can make a table for the woman.C. They don't have enough room for new furniture.3. What sport are the speakers watching?A. Skating.B. Football.C. Gymnastics.4. Who is the primary target audience for the man's books?A. Teachers.B. Teenagers.C. Primary school students.5. Where are the speakers?A. In a library.B. In a bookstore.C. In a classroom.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。

广西壮族自治区南宁等市2023-2024学年高中毕业班上学期第一次摸底测试英语试题

广西壮族自治区南宁等市2023-2024学年高中毕业班上学期第一次摸底测试英语试题

广西壮族自治区南宁等市2023-2024学年高中毕业班上学期第一次摸底测试英语试题学校:___________姓名:___________班级:___________考号:___________一、阅读理解Let’s face it: Life is hard. But it doesn’t have to be, especially if you have the following products. From a workout mirror to a water purifier, your day today routine is about to get a lot easier.Tempo Move$495 SHOP. TEMPO. FITTempo makes exercise truly convenient from your own home. You may recognize it as one of the many workout mirrors on the market, but the new tempo move system allows you to easily connect your phone and their apps to a TV, and follow along with all their wonderful classes.VIVE Flow$499 AT VIVE. COMVive goggles will bring an extremely accessible and refreshing approach to the VR world. The Vive goggles are, well, a pair of goggles not unlike something you’d wear to snowboard. They’re extremely lightweight with a lightning fast set-up that’s suitable for things like watching Netflix, or meditation (冥想). It’s the calmest headset I’ve ever worn and uses cameras to let you control everything with just your hands.Hisense 75”U 80X0GR 8K ULED Roku TV$1, 800 AT BEST BUY8K sounded like a luxury, but now that brands like Hisense, which focus on a more affordable version, have got some time with the tech. You can finally bring the deep color output and astonishing detail into your living room. Calling it “afordable“ may be a little overstate, but compared to most 8K TVs which all run over $5, 000, it’s the most cost-efficient version of the tech we’ve got.LARQ Water Purifier$139 AT LIVELARQ. COMLarq just made your water cleaner with light technology. The best part is that it somehow manages to taste clean and fresh too. And while I thought it may be a trick, I’veforced friends, family, and strangers to compare, and they all agree. Even if you don’t care about clean water, you’ll care about that, right?1.What can be inferred about Vive Goggles?A.They are user-friendly.B.They help keep track of weight.C.They are intended for snowboarders.D.They can control everything.2.What is special about Hisense 8K TV?A.Its look is luxurious.B.Its tech is advanced.C.It is economical.D.It features deep color.3.Where is the text probably taken from?A.A consumer review.B.A science report.C.An online advertisement.D.A product introduction.When a group of college students put their sorrows into action, they never imagined the project would fuel a nationwide movement to help deal with hunger and control on food waste.But that’s exactly what the Farmlink Project has done since 2020, bringing together hundreds of young volunteers to rescue nearly 77 million pounds of excess food and deliver it to those in need. The organization’s efforts help farmers, the environment, and people struggling to feed their families all at once.“In the United States, 40 million Americans don’t have enough food to eat. They don’t know where their next meal is going to come from,” said Aidan Reilly, who co-founded Farmlink. “Meanwhile, in the United States, we’re throwing out over 100 billion pounds of food every year.”Back in 2020, Reilly and his childhood friend James Kanoff were reading and watching news about food shortages, and they learned that area farms were forced to destroy excess produce that they couldn’t sell, especially with restaurants, schools and hotels closed. Reilly, Kanoff and a core group of friends worked together over Zoom, texted and e-mailed to contact farms coast to coast. “We didn’t really set out to start a nonprofit,” Reilly said. “We just thought, ‘There’re so many people suffering, if we can figure out one way to help, then that’ll be great.”In California, they found a farmer who had 13, 000 eggs that could be donated, and Reilly offered to do the pickup and delivery himself. That was the first of many moredeliveries. With “we’ll come to you” as their catchphrase (标语), the group rented U-Haul trucks and attempted to do all the food pickup and deliveries themselves.“We had a lot of small problems in the beginning,” Reilly said. “We broke axles (车轴), loaded in 40, 000 pounds of potatoes in a wrong way and had to try to drag them out by using another truck and a rope. But we made it work.”“Farmlink has worked with more than 100 farms and 300 communities in the US, rescuing and moving enough food to distribute more than 64 million meals,” Reilly said. 4.What can we learn about Farmlink Project from the text?A.It was launched by some college students.B.It helps relieve American poverty.C.It cooperated with the farms worldwide.D.It is supported by the government. 5.Why did some farms waste the produce left?A.The produce was of poor quality.B.Nobody came to purchase the produce.C.The farmers refused to sell it at a low price.D.Food shortages were no longer a problem globally.6.What difficulty did the students encounter in the start-up phase?A.They were lacking in experience.B.They overloaded the supply.C.Their navigation aids didn’t work.D.The vehicles were inadequate. 7.What is the text mainly about?A.Americans faced a food shortage crisis.B.Farmers in poor areas worried about food waste.C.Volunteers delivered farm produce to those in need.D.Students took action to tackle hunger and food waste.Tariq Qaiser, an architect, is trying to protect mangroves (红树林). The trees could save Pakistan’s largest city Karachi, sitting on the Arabian Sea, from natural disaster. He comes to Bundal Island several times a week to document the illegal cutting of mangrove trees. Very often, “You can’t hear a single bird because the chain saws are so loud. The trees are cut down illegally for firewood,” he says, shaking his head. Besides, developers clear the mangroves to make room for construction.Karachi has a hot climate, and its concrete buildings and paved roads make it even hotter. Offshore, there are islands where mangroves grow. They could be the key to slowing climatechange. Mangrove forests pull carbon dioxide out of the air, holding four times as much of the planet-warming gas as other forests can. They support diverse ecosystems. As sea levels rise with global warming, the trees could play a big role in protecting coastal cities like Karachi from flooding. Karachi’s mangroves are disappearing. But its numbers are rising in other parts of Pakistan. With replanting efforts, the country has tripled (三倍于) its mangrove coverage over the past 30 years.Qaiser’s work may have worked. Recently, a court in Karachi declared Bundal Island’s mangroves to be protected forests. But unforested parts of the island remain unprotected, and developers want to build there. City officials say this could provide much-needed housing and bring in billions of dollars. They claim that some of that money could be used to plant mangroves in other parts of Pakistan.Ecologist Rafiul Haq appreciates Qaiser’s “extraordinary work” educating the public about mangroves. But he wishes Qaiser would look at the bigger picture. “Only 7% of Pakistan’s mangroves are in Karachi,” Haq says. He thinks it’s wrong to focus on the losses in 7% of the country while ignoring the success in 93% of it. But Qaiser believes it’s important to protect every bit.8.What do we know about Karachi’s mangroves?A.They occupy the building land.B.They’re home to various birds.C.They’re primarily being used as firewood.D.They protect the city from climate catastrophe.9.Why are efforts made to conserve the mangrove trees?A.Their birthplaces meet crisis.B.They boast huge diversity.C.Their bonds with nature are close.D.They grow at a rapid speed. 10.What does the Karachi government plan to do?A.Grow mangroves in other areas.B.Destroy buildings to grow mangroves.C.Build more mangrove reserves.D.Use mangroves to make profit. 11.What does Haq think of Qaiser’s work on Karachi’s mangroves?A.Challenging.B.Effective.C.Insignificant.D.Partial.It’s well-known that humor can benefit us both physically and mentally. The idea that laughter is the best medicine has been around since ancient times. In his 1905 book, Jokes and Their Relation to the Unconscious, Sigmund Freud argued that humor is the highest of thepsyche’s defense mechanism (机制), capable of turning anxiety into pleasure.There are four humor styles. Affiliative humor refers to jokes about things that might be commonly considered funny, which is usually employed to improve relationships or make others laugh. If you’ve ever shared a funny picture with a coworker, you’ve used affiliative humor. Self-enhancing humor involves being able to laugh at yourself, often used as a way for you to deal with stress or difficulties and feel better as a result. Aggressive humor is laughing at the expense of others, which often involves sarcasm (讽刺), teasing, and criticism. Self-defeating humor is the art of putting yourself down to gain favor from your peers, which is possibly used by someone who’s targeted by bullies.Each style of humor actually carries a different influence, when it comes to mental health. Julie Aitken Schermer, a psychological researcher at The University of Western Ontario, says people using self-enhancing humor are less likely to show signs of loneliness and poor relationships with others. By contrast, both aggressive and self-defeating humor styles can hint at trouble. “We find that self-defeating humor is the most concerning style as it is also linked with loneliness and feelings of not mattering. Those with an aggressive humor style may not experience loneliness as much, however, since they rely on group dynamics (群体动力) in order to make fun of their peers,” says Schermer.Even if you tend to favor more negative humor styles, there’s no reason to lose heart. Schermer says people can develop a positive, self-enhancing humor style by concentrating on the lighter and more humorous aspects of life. As author Kurt V onnegut once wrote, “Laughter and tears are both responses to worries and anxieties. I prefer to laugh, since there is less cleaning up to do afterward.”12.Why is Sigmund Freud’s book mentioned in Paragraph 1?A.To show the importance of mental health.B.To stress the role of humor.C.To persuade people to stay positive.D.To introduce ancient jokes to us. 13.According to the text, which kind of humor may you use to relieve pressure?A.Affiliative humor.B.Self-enhancing humor.C.Aggressive humor.D.Self-defeating humor.14.What does the underlined phrase “hint at” probably mean in the third paragraph?A.Signal.B.Explain.C.Prevent.D.Solve. 15.Which of the following will Kurt V onnegut probably agree with?A.Humor is difficult to control.B.Crying is a good way of relief.C.Humor is a double-edged sword.D.Laughter is the best cure for stress.二、七选五Humanities departments(人文院系)in America are once again being cut down. Earlier this month, the State University of New York(SUNY)StonyBrook announced a plan to abandon several of the college’s well-known departments for lack of fund. The University ofdecided to gradually get rid of philosophy department. In June 2015, the Japanese minister of education sent a letter to the presidents of the national universities of Japan, suggesting they close their graduate and undergraduate departments in the humanities and social sciences and focus on something more practical.These are hard times. Instead of Shakespeare or French, there will be(perhaps there already are)college classes in how to cut corporate spending. 17 But the only opportunity has been lost if they are denied the opportunity to study foreign languages, the classics, literature, philosophy, music, theater and art in the university. When else in their busy lives will they get that chance?18 . Essays explain why we need these subjects, and what their loss will mean. These areas of learning provide us with the ability to think critically and independently; to see both sides of an issue;to look beneath the surface of what we are being told; to appreciate the ways in which language can help us understand one another more clearly.I don’t believe that the humanities can make you a decent person. 19 . Studying philosophy teaches us about those who have gone before us. A foreign language brings us closer to those with whom we share the planet. The humanities touch those aspects of awareness that we call intellect and heart. 20A.These subjects are under attackB.Students need practical skills to find jobsC.Defenses of the humanities have appearedD.This problem has also arisen internationallyE.Therefore, courses in the humanities are beneficialF.It helps us learn how to think and live in a harmonious societyG.But they can expand our sense of what humans can accomplish and create三、完形填空At the school Art Festival, I was asked to design the costumes for three school plays.designers studied at fashion design institutes in London, Paris or Milan. I also keep a(n)have.After much thought, I decided to 30 these skills and get the right qualifications by studying art at university. While I am there, I would like to work part-time for a fashion design company in order to 31 from other designers. Actually, I don’t have to wait until I go to university to swing into 32 as there will be a workshop in my city next month which I am hoping to 33After graduation, I will 34 a job as a fashion designer. One day, I hope to start my own 35 company.21.A.determined B.amazed C.awkward D.expected 22.A.drawing B.acting C.sculpture D.communication 23.A.challenge B.admire C.pursue D.aid 24.A.provide B.compare C.create D.combine 25.A.get into B.get through C.get over D.get from 26.A.training B.research C.quiz D.schedule 27.A.checked B.persuaded C.recognized D.forecasted 28.A.head B.eye C.back D.foot 29.A.flexibility B.standards C.drawbacks D.qualities 30.A.apply B.demonstrate C.improve D.acquire 31.A.learn B.result C.benefit D.obtain 32.A.motion B.action C.position D.operation 33.A.attend B.equip C.design D.organize34.A.conduct B.submit C.land D.perform 35.A.accounting B.consulting C.cleaning D.clothing四、用单词的适当形式完成短文阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。

六年级下学期第一次质量摸底测试卷

六年级下学期第一次质量摸底测试卷

: 第三片区六年级下学期第一次质量摸底测试卷: (90 分钟完卷16.03.17)Ii 一、语文基础(本模块选择题都是单项选择题,每小题1分,共15分;默写古I:诗5分。

(20分)I1•下列加点字(词)注音不正确的是哪一项?()A.赤裸裸(ch 1 lu o lU oB.激昂(j i d ngC.哄(h b ng)堂大笑D.抽屉(ch o uti)2.“绡”可能与下列哪个字的读音相同?()A.绢B.漂C.消D.骨3.下列词语中,有别字.的是哪一项?()A.蒸融B.养遵处优C.蜂拥而至D.敦厚4.下列学生抄写的词语中,有错字.的是哪一项?()A. B.瓯圉砒1C. D.翻炖涵L5.“纂”与下列哪个字的意思有关?(: ): A.算 B .丝C .竹 D . 目I; 6.“玦(ju e )的意思最可能与下列哪个词的意思有关?(): A.王冠 B.缺点 C.决定 D.玉器I! 7.张华同学读到一副对联:“勤靡余劳心有常闲”,不知道“靡”在这里是什i么意思,便根据对联的“对偶”规律,猜出意思是什么?()I: A.麻 B .无C .非常 D .散乱倒下Ii 8.下列词语填入句子,最恰当的是哪一个?()i: A.清朗 B.清澈 C.清廉 D.清纯月夜,站在家乡的小溪旁,看着那清清的溪水映着 _______ 的夜空,令人心旷神怡。

9.哪一个词语填入短语最恰当?()A.头B.只C.条D.匹一()白兔10.下列对句子主要意思的概括,正确的是哪一项?()不期然,它们(两只青鸟)嗖地飞起,一前一后,平展了双翅,斜斜地绕过屋顶,互应一声,转个圈,飞向远方。

A.它们不期然地。

B.它们平展双翅。

C.它们绕过屋顶。

D.它们飞向远方。

11.下列对句子蕴含意义的理解,最恰当的是哪一项?()地球表面的70%被水覆盖,但淡水资源仅占2.5%,而可供人类饮用的又仅占淡水资源的1%左右,请不要让我们的眼泪成为最后一滴水。

A.说明地球上的水资源很丰富。

2024届广西壮族自治区玉林市高中毕业班第一次摸底测试英语试题(高频考点)

2024届广西壮族自治区玉林市高中毕业班第一次摸底测试英语试题(高频考点)

2024届广西壮族自治区玉林市高中毕业班第一次摸底测试英语试题(高频考点)一、听力选择题1. What does the man want to do?A.Have breakfast.B.Take a walk.C.Call his office.2.A.Ask for a helper.B.Provide her with assistance.C.Think twice about his work.D.Go on working.3.A.The girl is interested in those home-grown flowers.B.The girl is likely to pass the flowers to her father.C.The father is to help grow some flowers in the garden.D.The father is ready to talk to the girl’s teacher.4. What’s the problem with the man’s apartment?A.It is dirty.B.The water is running.C.It has no hot water.5.A.Customer and shop assistant.B.Waiter and customer.C.Boss and employee.D.Doctor and patient.二、听力选择题6. 听下面一段较长对话,回答以下小题。

1. What does the man plan to do?A.Take a local trip.B.Visit the Stadium.C.Attend a winter camp.2. Who once worked as a volunteer at this year's Winter Olympics?A.Tom.B.Jack.C.Susan.3. How does the woman feel about the invitation at first?A.Curious.B.Hesitant.C.Uninterested.4. Why does the woman change her mind in the end?A.Because she can learn how to ski.B.Because her friend will go there too.C.Because they will save a lot of money.7. 听下面一段长对话,回答小题。

江西省南昌三中教育集团2024-2025学年九年级上学期历史第一次摸底测试题(含答案)

江西省南昌三中教育集团2024-2025学年九年级上学期历史第一次摸底测试题(含答案)

2024-2025学年南昌三中教育集团初三摸底测试历史试卷一.选择题1.条约的赔偿巨款,相当于清政府全年财政收入的三分之一,导致人民的负担空前沉重,也开创了侵略者对中国勒索赔款的恶例,同时也为英国资本主义的发展提供了资本积累。

上述材料中的“条约”是指()A.《南京条约》B.《北京条约》C.《马关条约》D.《辛丑条约》2.下图是中国近代民族工业发展的曲线图。

导致近代民族工业这一发展状况的根本原因是()A.受本国封建势力的压迫与束缚B.中国半殖民地半封建社会性质C.外来资本主义势力的压榨排挤D.国内党派之间长期的混战环境3.思源中学组织历史兴趣小组夏令营活动,他们设计了“沈阳--北京--南京--武汉--重庆”的研习路线。

设计该路线的主题最合适的是()A.国民革命的艰难历程B.中国共产党的奋斗历程C.中华民族的抗日历程D.人民解放战争的进程4.下图是新中国外交大事年表(部分)。

其中外交成就与表中序号对应错误的是()1949195319541955197119722001②③④中国加入世界贸易组织中苏建交①周恩来参加日内瓦会议A. ①和平共处五项原则提出B.②周恩来率团参加万隆会议C.③中华人民共和国在联合国的合法席位得到恢复D.④中美正式建立外交关系5.一支考古队伍从中国出发,从东向西去考察大河流域文明的发源地,其考察顺序依次是:()①尼罗河流域②印度河流域③黄河流域④两河流域A①③④②B③①④②C③②④①D①②④③6.《汉谟拉比法典》是古东方法从习惯法阶段进入成文法阶段的表现,较为完整地继承了两河流域原有的法律精华,对后世的立法有重要的影响。

这表明()A.第一部比较完备的成文法典B.人类社会的法制传统源远流长C.商品经济在古巴比伦的活跃D.有效维护封建地主阶级的利益7.古代雅典城邦某户人家有一个成年男主人,一个成年女主人,一个小男孩,一个小女孩和两个奴隶。

在首席将军的选举中,这户人家有几个人可以参与投票()A.1个B.2个C.4个D.6个8.罗马共和国建立与公元前509年,可以表述为()A公元6世纪初B公元6世纪末C公元前5世纪初D公元前5世纪末9法兰克历史学家格雷戈里在克洛维去世半个世纪以后,开始撰写《法兰克人史》。

高三高中新课标第一次摸底测试数学文科试题

高三高中新课标第一次摸底测试数学文科试题

昆明第一中学2021届高中新课标高三第一次摸底测试文科数学注意事项:1.答题前,先将自己的姓名、准考证号填写在试卷和答题卡上,并将准考证号条形码粘贴在答题卡上的指定位置。

2.选择题的作答:每小题选出答案后,用2B 铅笔把答题卡上对应题目的答案标号涂黑。

写在试卷、草稿纸和答题卡的非答题区域均无效。

3.非选择题的作答:用黑色签字笔直接答在答题卡上对应的答题区域内。

写在试卷、草稿纸和答题卡上的非答题区域均无效。

4.选考题的作答:先把所选题目的题号在答题卡上的指定的位置用2B 铅笔涂黑。

答案写在答题卡上对应的答题区城内,写在试卷、草稿纸和答题卡,上的非答题区域均无效。

5.考试结束后,请将本试卷和答题卡一并上交。

一、选择题:本题共12小题,每小题5分,共60分。

在每小题给出的四个选项中,只有一项是符合题 目要求的。

1.已知集合A ={}221x x y +=,集合B = {2y y =,则A B = A.[0,1] B.[- 1,1] C.[-1,0) D.[- 1,0]2.复数z 满足12z i ⋅=,则复数z 在复平面内对应的点的坐标为 A.(1,0) B. (0,1) C.(-1,0) D.(0, - 1) 3.抛物线24y x =的焦点到双曲线221x y -=的渐近线的距离为A.12B. 2C.D.24.已知{}n a 是公差为12的等差数列, n S 为数列{}n a 的前n 项和,若248,,a a a 成等比数列,则7=S A.194B.14C.12D. 165.我国目前部分普通高中学生在高一升高二时面临着选文理科的问题,某学校抽取了部分男、女学生意愿的一份样本,制作出如下两个等高堆积条形图根据这两幅图中的信息,下列统计结论正确的是A.样本中的男生数量多于女生数量B.样本中有理科意愿的学生数量少于有文科意愿的学生数量C.对理科有意愿的男生人数多于对文科有意愿的男生人数D.对文科有意愿的女生人数多于对理科有意愿的女生人数6.数学与文学有许多奇妙的联系,如诗中有回文诗“儿忆父兮妻忆夫”,既可以顺读也可以逆读。

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数学试卷
一、填空题(本大题8小题,每小题3分,共24分. )
1.数3的绝对值是 .
2.用代数式表示“a 与b 的和”,式子为 .
3.四川“5²12”地震牵动着湖南全省68000000人民的心,请把68000000用可惜记数法表示为_______________________.
4.一个圆的半径是4,则圆的面积是 .(答案保留π) 5. 抛掷一枚质地均匀的正方体骰子一次,骰子的六个面上分别刻有1 到6的点数,观察向上的一面,点数为6的事件的概率是 6.若等边三角形的边长为2cm ,它的面积是________cm 2 .
7.分解因式:ax -ay = .
8.对于任意不相等的两个数a ,b ,定义一种运算※如下:a ※b =
b
a b a -+,
如3※2=
5
2
323=-+.那么12※4= .
二、选择题(本大题8个小题,每小题3分,共24分.
9. 一个角是80°,它的余角是( )
A .10°
B .100°
C .80°
D .120°
10.计算x 2²x 3的结果是( )
A .x 5
B .x 4
C .x 3
D .x 2
11.函数y = 3
x 是( )
A .一次函数
B .二次函数
C .反比例函数
D .正比例函数
12.一元二次方程0
42
=-x 的解是( ) A.
2
- B. 2 C.
2
±
D. ±2
13. 如图,直线AB 、CD 相交于O 点,若︒=∠301,则∠2、∠3的度数分别为 A. 120°、60° B. 130°、50° C. 140°、40° D. 150°、30° 14.函数2
-=
x y
中自变量x 的取值范围是( )
A. x ≥2
B. x ≤2
C.
x
>2 D. x ≠2
1 2 3
A
B
C
D O 第13题图
A
B
C E
D
15.O ⊙的半径为10cm ,弦AB =12cm ,则圆心到AB 的距离为( )
A . 2cm
B . 6cm
C . 8cm
D . 10cm
16.下列各数中,是无理数的是( )
A.0
B.-2
D.12
三、解答题(本大题8道题,共52分)
17. (本题5分)计算:︒
+-
-60cos 2)
32008(30
2
18.(本题5分)解方程:2725
x y x y -=⎧⎨+=⎩①②
19.(6分)如图,点C 是AB 的中点,AD =CE ,CD =BE .求证:△ACD ≌△CBE .
20.(6分)光明中学七年级举行了一次“我最喜爱的学科”主题班会,对全年级
学生喜爱“语文、数学、英语、地理”四个学科情况,进行问卷调查(每人只能选1个学科),并将调查结果分别用图①和图②(不完整)表示.
(1)根据图中信息,求这次调查的学生总数;
(2)全条形统计图,并求图①中圆心角∠AOB 的度数.
A B
C
3 30°
A B C E 21.(6分)在△ABC 中,∠B =90°,∠C =30°,AB =3.
(1)求AC 的长;(2)求BC 的长.
22.(本题6分)掷一个质地均匀的正方体,六个面上分别标有1、2、3、4、5、
6,观察向上一面的数字,求下列事件的概率.
(1)数字为5;
(2)数字为偶数.
23.(本题8分)湘西以“椪柑之乡”著称,在椪柑收获季节的某星期天,青山中学抽调八年级(1)、(2)两班部分学生去果园帮助村民采摘椪柑,其中,八年级(1)班抽调男同学2人,女同学8人,共摘得柑840千克;八年级(2)班调男同学4人,女同学6人,共摘得椪柑880千克,问这天被抽调的同学中,男同学每人平均摘椪柑多少千克?女同学每人平均摘椪柑多少千克?
24.(10分)在等腰△ABC 中,AB =AC =8,∠BAC =100°,AD 是∠BAC 的平分
线,交BC 于D ,点E 是AB 的中点,连接DE .
(1)求∠BAD 的度数; (2)求∠B 的度数;
(3)求线段DE 的长.
25.(20分)如图,已知抛物线y=ax2-4x+c经过点A(0,-6)和B(3,-9).
(1)求出抛物线的解析式;
(2)写出抛物线的对称轴方程及顶点坐标;
(3)点P(m,m)与点Q均在抛物线上(其中m>0),且这两点关于抛物线的对称轴对称,求m的值及点Q的坐标;
(4)在满足(3)的情况下,在抛物线的对称轴上寻找一点M,使得△QMA的周长最小.。

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