-
2022年江苏省连云港市中考英语真题（解析版）
Zu Ti was a great man of Jin Dynasty. He was ____16____ for his hard work andgreat achievements. But when he was a child, he was a naughty (顽皮的)boy who showed little ____17____ inreading. As he grew up, Zu Ti ____18____ hedidn’t have enough knowledge.
2022年甘肃省天水市中考英语真题（解析版）
My mum and dad bought a nice, big turkey a fewdays before Thanksgiving. ___29___was proud of herself as she got it for a good price. ___30___ Thanksgiving, Mum got the turkey out of thefridge.
2022年湖南省邵阳市中考英语真题 （原卷版）
“We thankall the Chinese people for their support and encouragement. Our thanks also goto our workmates who took part in the mission (任务) and worked with us allthe time,” Zhai said to the reporter after he landed on the ground. “It is thepower and strength of our country that built the high-flying space station. Iam proud of our great motherland.”
2022年贵州省铜仁市中考英语真题（解析版）
I’m glad to receive your letter and know yourunforgettable（难忘的）experience.Now I’d like to share mine. Last Friday, I was cleaning my room and found anold photo in a drawer. While I was looking at it, the ___16___ memory of that day came back to me.
2022年贵州省贵阳市中考英语真题（原卷版）
Paper cutting or tearing is a cultural traditionin China. For centuries, it has been passed down from one generation（一代人） tothe next, especially from mothers to daughters.
2022年湖南省郴州市中考英语真题（原卷版）
A passenger told an air hostess（空姐）thathe needed a cup of water to take his medicine when the plane just took off. Shetold him that she would bring him the ___11___ in ten minutes.
2022年湖南省长沙市中考英语真题（原卷版）
In ourdaily lives, we are often given some boring or tiring tasks. What’s in yourmind when your mom tells you to clean the floor? Have you ever wanted tocomplain（抱怨）? I think most people have.
2022年湖南省衡阳市中考英语真题（原卷版）
The boy named Li Banghua is from Hefei. AnhuiProvince. He made the plane completely by himself. The plane is 0.6 meterswide, has a wingspan (翼展) of 4.4 meters and weighs about 40 kilograms.According to a local report, Li just finished his high-school entrance exam ayear ago and got good grades.
2022年江苏省扬州市中考英语真题（原卷版）
Every month, Julia and her cousins would go forthe big family meal at their grandparents’ house. On each visit, their grandpawould give them a few coins. Then all the children would run off to buy sweets.One day, he gathered the children together.
2022年江苏省常州市中考英语真题（原卷版）
At 9 a.m. , he drives to primary schools and middle schools in Xi’an, ShaanxiProvince, to teach students about Shaanxi kuaiban. It is a traditional Chineseform of storytelling to the rhythm(节奏) of bamboo clappers(响板), whichthe art form is named after. Sometimes, he helps students prepare forcompetitions. Usually, his classes run until about 6. p.m. , and then hereturns home to prepare classes for the next day.
2022年江苏省宿迁市中考英语真题 （解析版）
ThreeRiver-Source National Park on the Qinghai-TibetPlateau（青藏高原）,is the largest national park in China. Because it is home to the sources of theYangtze, Yellow and Lancang rivers, people call it “China’s water tower”.
2022年广东省广州市中考英语真题（解析版）
When youand your friends turn to each other to talk about problems or troubles, yougive each other advice and help. One important thing of our growth is to makedecisions to help our friends and learn to support each other. This requires usto learn what it means to help friends and how to help them in right ways.
2022年山东省济宁市中考英语真题（解析版）
Raden Roro Hendarti, nearly 50 years old, is alibrarian in Muntang village. She started a “trash library”, hoping to makechildren read more as well as make them realize the importance of environmentprotection. Each weekday, Raden puts all kinds of books on the back of herthree-wheeler (三轮车)and rides to Muntang village. There, children line up to exchange plastic cups,bags and other trash for books from Raden’s mobile library. After finishing theexchange, Raden carries back all the trash.
2022年广东省广州市中考英语真题（原卷版）
Slowlybut surely, Amy and her grandparents were making progress. Boxes of all sizeswere placed on top of each other throughout the house. Amy’s grandparents hadlived in the house for years and they had collected many things.
2022年内蒙古赤峰市中考英语真题（原卷版）
We allknow that rice, wheat and corn are staples, but do you know there is anotherkind of staple food—potatoes? Potatoes have many advantages. Theyare a good source of vitamin C and potassium(钾). A potato’s vitamin C isas rich as 10 apples. What’s more,potatoes are low in calories(卡路里)-onlythree fourths of the same amount of wheat and corn, according to People’s Daily. Potatoes are easy togrow. It can be grown in both the north and the south during winter, spring andautumn. The plant is also able to bear drought(干旱). Some areas of China arefacing water shortages, so the potato is safe to grow.
2022年内蒙古赤峰市中考英语真题（解析版）
Chopsticksoriginated from(起源于) China.Though simple and little, they are agreat invention in the history of humans. There are many legends aboutChopsticks, Da Yu and Chopsticks is one of them.It issaid that during Yao and Shun times, Shun ordered Yu to control the flood. Oneday, Yu took a boat to an island, he was so hungry that he used an earth pot tocook meat. After the meat was well-done in boiled water, he didn’t want towaste time to wait for it to cool, so he took two branches to pick up the meatfrom the soup. After, to save time, he always took small branches to take outfood from the hot pot. For a long time, he was skilled at picking up food withsmall sticks. In this way, the first types of chopsticks were born.
2022年内蒙古包头市中考英语真题（原卷版）
Locatedin the mountains about 100 miles from Los Angeles, the Idyllwild Arts Academyis a boarding school for young artists. It offers training in arts, likedrawing, painting, photography and cinema, along with programmes for theperforming arts. The school’s quiet, rural location also makes it a verypeaceful and beautiful place to learn. THE NATIONAL CIRCUS（杂技）SCHOOL
空间向量及其运算的坐标表示教学设计人教A版高中数学选择性必修第一册
一、情境导学我国著名数学家吴文俊先生在《数学教育现代化问题》中指出:“数学研究数量关系与空间形式,简单讲就是形与数,欧几里得几何体系的特点是排除了数量关系,对于研究空间形式,你要真正的‘腾飞’,不通过数量关系,我想不出有什么好的办法…….”吴文俊先生明确地指出中学几何的“腾飞”是“数量化”,也就是坐标系的引入,使得几何问题“代数化”,为了使得空间几何“代数化”,我们引入了坐标及其运算.二、探究新知一、空间直角坐标系与坐标表示1.空间直角坐标系在空间选定一点O和一个单位正交基底{i,j,k},以点O为原点,分别以i,j,k的方向为正方向、以它们的长为单位长度建立三条数轴:x轴、y轴、z轴,它们都叫做坐标轴.这时我们就建立了一个空间直角坐标系Oxyz,O叫做原点,i,j,k都叫做坐标向量,通过每两个坐标轴的平面叫做坐标平面,分别称为Oxy平面,Oyz平面,Ozx平面.
双曲线及其标准方程教学设计人教A版高中数学选择性必修第一册
∵在△EFP中,|EF|=2c,EF上的高为点P的纵坐标,∴S△EFP=4/3c2=12,∴c=3,即P点坐标为(5,4).由两点间的距离公式|PE|=√("(" 5+3")" ^2+4^2 )=4√5,|PF|=√("(" 5"-" 3")" ^2+4^2 )=2√5,∴a=√5.又b2=c2-a2=4,故所求双曲线的方程为x^2/5-y^2/4=1.5.求适合下列条件的双曲线的标准方程.(1)两个焦点的坐标分别是(-5,0),(5,0),双曲线上的点与两焦点的距离之差的绝对值等于8;(2)以椭圆x^2/8+y^2/5=1长轴的端点为焦点,且经过点(3,√10);(3)a=b,经过点(3,-1).解:(1)由双曲线的定义知,2a=8,所以a=4,又知焦点在x轴上,且c=5,所以b2=c2-a2=25-16=9,所以双曲线的标准方程为x^2/16-y^2/9=1.(2)由题意得,双曲线的焦点在x轴上,且c=2√2.设双曲线的标准方程为x^2/a^2 -y^2/b^2 =1(a>0,b>0),则有a2+b2=c2=8,9/a^2 -10/b^2 =1,解得a2=3,b2=5.故所求双曲线的标准方程为x^2/3-y^2/5=1.(3)当焦点在x轴上时,可设双曲线方程为x2-y2=a2,将点(3,-1)代入,得32-(-1)2=a2,所以a2=b2=8.因此,所求的双曲线的标准方程为x^2/8-y^2/8=1.当焦点在y轴上时,可设双曲线方程为y2-x2=a2,将点(3,-1)代入,得(-1)2-32=a2,a2=-8,不可能,所以焦点不可能在y轴上.综上,所求双曲线的标准方程为x^2/8-y^2/8=1.
抛物线及其标准方程教学设计人教A版高中数学选择性必修第一册
本节课选自《2019人教A版高中数学选择性必修第一册》第二章《直线和圆的方程》，本节课主要学习抛物线及其标准方程在经历了椭圆和双曲线的学习后再学习抛物线，是在学生原有认知的基础上从几何与代数两 个角度去认识抛物线.教材在抛物线的定义这个内容的安排上是：先从直观上认识抛物线，再从画法中提炼出抛物线的几何特征，由此抽象概括出抛物线的定义，最后是抛物线定义的简单应用.这样的安排不仅体现出《课程标准》中要求通过丰富的实例展开教学的理念，而且符合学生从具体到抽象的认知规律，有利于学生对概念的学习和理解.坐标法的教学贯穿了整个“圆锥曲线方程”一章，是学生应重点掌握的基本数学方法 运动变化和对立统一的思想观点在这节知识中得到了突出体现，我们必须充分利用好这部分教材进行教学
