初一上期末复习卷5
新目标英语七年级上期末复习单元检测试卷Unit 7 测试题

Unit 7 How much are these socks?单元检测试卷考试时间:100分钟满分120分第一卷听力部分(20分)一、听录音,选出你所听到的单词或短语,听1遍(每小题1分,共5分)1. A. shoes B. shorts C. short2. A. clock B. clothes C. cool3. A. eight B. fourteen C. thirty4. A. sell socks B. book store C. sell bags5. A. that store B. buy the shirts C. buy the socksA B C D E1.__________2.__________3. __________4. __________5. __________三、听句子,选择恰当的应答语,听1遍(每小题1分,共5分)1. A. It’s white. B. They are ten dollars. C. It’s on the bed.2. A. No, please. B. Yes, please. C. You’re welcome.3. A. They are thirteen dollars. B. They’re black. C. It’s only four dollars.4. A. Yes, I want the red skirt. B. No, I like. C. I’ll take it.5. A. Yes, blue. B. No, it’s green. C. White.四、听对话,选择正确答案,听2遍(每小题1分,共5分)1. The girl wants to buy a ________.A. skirtB. shirtC. sweater2. She wants _______.A. blueB. greenC. red3. The first skirt is _______.A. thirtyB. twentyC. ten4. The white skirt is ______?A. twentyB. tenC. fifteen5. She will take the ______.A. whiteB. blackC. red第二卷笔试部分(100分)一、单项选择(每小题1分,共20分)1. The girl _______a colorful pencil.A. there isB.there areC.haveD.has2. You want it, we have it, _______ a very good price.A. forB.atC.ofD.in3. Come down _______ Huaxing and see _____ yourself.A.to, toB.for, forC.to, forD.for, to4. We can _____ books _____ the bookstore.A. sell, toB. buy, fromC. sell, fromD. buy, to5. The store _____school things ______ the students.A. sell, toB. buy, fromC. sells, toD. buys, from6. There ______ many shorts ______ sale in the store.A. are, onB. are, forC.is, onD.is, for7. _____ the trousers? They’re 15 yuan.A. How many isB. How many areC. How much isD. How much are8. This shirt is very cheap. I’ll _____ it.A. bringB. takeC. wantD. believe9. The car is very good, but it’s too dear (贵的), I can’t ______ it.A. sellB. likeC. affordD. see10. ---Can I help you? ---_. I want a hat for my daughter.A. Yes, pleaseB. I’m sorry.C. Here you areD. You’re welcome11. We_____100 RMB now. Let’s go to Mr. Zhang’s Clothing Sale.A. each hasB. all hasC. have eachD. each have12. What color ______ the shorts?A. canB. doC. areD. is13. It’s the same time _____ year.A. forB. ofC. for aD. of a14. —What color is it?—It's _____orange. It's _____orange sweater.A. a; anB. an; anC./;anD. an;/15. The girl ______ the red blouse is my sister.A. inB. onC. ofD. over16. —_______is the pork?—It's five yuan a kilo.A. How manyB. WhichC. How muchD. When17. I want _______shopping.A. to go toB. goC. go toD. to go18. How _______apples does she want?A. anyB. someC. muchD. many19. Do you need shoes for sports_______ dance?A. orB. andC. ofD. by20. His clothes _______over there, in that room.A. isB. areC. amD. be二、完型填空: (每小题1分,共10分)Hello,everyone. I'm Wang Lei. I'm a middle school student. I’m glad to meet you here. First, let me tell you 21 about my family. There are five people in my 22 .They are my mother, my father, my sister, my brother and me.My father is a doctor. My mother is 23 English teacher. My sister is nineteen and my brother is sixteen. I'm fourteen. We 24 go to the same school. We all enjoy 25 football games.My 26 is on West Street. There is a big tree and some small trees around my house. The big one is a pear tree and the small ones are apple tree, 27 there 28 some pears andapples on them now. 29 a photo of my house. In the photo, you can see a small dog in my house. It is our best 30 .21. A. anything B. something C. thing D. anyone22. A. school B. house C. room D. family23. A. a B. an C. the D. one24. A. one B. two C. three D. four25. A. seeing B. watching C. looking D. reading26. A. trees B. rivers C. house D. schools27. A. but B. and C. so D. or28. A. isn't B. is C. are D. aren't29. A. He's B. Here's C. it's D. There's30. A. sister B. brother C. friend D. friends三、阅读理解(每小题2分,共20分)AOne morning Mr. Green and his son, Bill, are in a big shop. Mr. Green wants to buy a new sweater and a skirt for Mrs. Green, and a shirt for himself (他自己). Bill likes apples, so (所以) his father buys two kilos of apples. Bill wants to buy a black T-shirt and some picture books too. There are many people in the shop. They all want to buy something in the shop.根据上文,判断下列句子正“T”, 误“F”.31. Bill goes shopping with Mrs. Green.32. Mr. Green wants to buy a new skirt for Mrs. Green.33. Mr. Green buys a T-shirt for himself.34. Bill wants to buy some books.35. Many people buy things in the shop.BThere are four people in Jim’s family. They are Kate, Jim, their father and mother. Jim is Kate’s brother. He is fourteen. Kate is Jim’s sister. She is twelve. They are in the same middle school. Jim is in Class One, Grade Three. Kate is in Class Two, Grade One. They are good students. Their father Mr. Green is a teacher. He is thirty-nine. He teaches English in a school near his home. Their mother is a teacher, too. But she teaches Chinese in a different school. Now they are all at home.36. How many people are there in Jim’s family?A. 3B. 4C. 5D. 237. Mrs. Green is ______.A. an English teacherB. a Chinese teacher.C. a Japanese teacherD. a math teacher38. Jim and Kate are in ______ middle school.A. the sameB. differentC. No. 2D. same39. Mr. Green and Mrs. Green work ______.A. in different schoolB. in the same schoolC. in a factoryD. in different schools40. Now Jim is ________.A. at schoolB. at homeC. on the bedD. in the classroom四、任务型阅读: 根据短文内容,完成表格.(每空1分,共5分) Maria is an English girl. She was born (出生) on January 11, 1990. Now she studies at No. 1 Middle School in Beijing. She likes watching movies. Ge You is her favorite Chinese movie star. She often plays sports. She likes playing volleyball. Her favorite color is red. She has lots of red socks, T-shirts an d shorts. She likes them very much, but she doesn’t like skirts or hats. She likes shopping, too. She has a great bag collection. She has many kinds of bags in many colors.五、词汇知识(每小题1分,共20分)第一节:按要求填空 (每小题1分,共5分)46.short (反义词) __________ 47. shop (同义词) __________48.sell (名词形式) __________ 49. buy (同义词) __________50. small (反义词) __________第二节:根据句意和首字母提示完成下列句子(每小题1分,共5分)51. B________ your math book here.52. The store s_________ kinds of things. They are very cheap.53. Watching TV is b_________. But playing soccer is very interesting.54. All the fruit and vegetables are at a very good p________.55. I’ll t_________ the red socks.第三节:用括号中所给词的适当形式填空(每小题1分,共10分) 56. Mr. Brown ___________ (like) blue socks.57. Lillian does not __________ (have) the green dress.58. How much ___________ (be) those black socks ?59. I don’t like black T -shirts. I like the red _________ (one).60. The books are on ________ (sell) at a good price.61. The boy __________ (go) to school at seven in the morning.62. How much _________ (milk) do you drink every day?63. There _________ (be) twenty dollars on the table.64. Let’s_________ (come) to Hua Xing clothes store.65. How _________ (many) are the red socks?六、句型转换(每小题1分,共10分)66. The pen is five yuan. (划线提问)_______ _______ is the pen?67. This T-shirt is too small for me. (同义)This T-shirt isn ’t ______ ______ for me.68. We have red, green and yellow socks for you. (同义句)We have _______ ______ red, green and yellow.69. Can I look at your bag? (同义句) Name 41. Birthday January 11, 1990. School 42. Hobbies (爱好) 43. Favorite star44. Favorite color45.Can I _______ a _______ at your bag?70. They are their socks (变同义句)The socks _______ _______.71. I have no T-shirts.(变同义句)I _______ have _______T-shirts.72. There are thirty- two students in our class. (划线提问)______ ______ students are there in your class?73. I want a red sweater and white socks. (划线提问)_______ _______ you want?74. May I help you?What _______ I do ________ you?75. My socks are blue. (划线提问)_______ _______are your socks?七、根据汉语意思完成句子(每小题1分,共5分)76. 你的衬衫是什么颜色的,汤姆?_______ _______ your shirt, Tom?77. 我的包里有三十五块钱。
【期末复习】浙教版2022年七年级上册:“代数题型大全”一卷过关(40道题)(含解析)

浙教版2022年七年级上册期末复习“代数题型大全”一卷过关(40道题)一.选择题1.2的相反数是()A.B.C.﹣2D.22.16的算术平方根是()A.4B.﹣4C.±4D.83.备受关注的北京环球度假区宣布将于2021年9月1日正式开启试运行.根据规划,北京环球影城建成后一期预计年接待游客超过1000万人次,将1000万用科学记数法表示为()A.0.1×104B.1.0×103C.1.0×106D.1.0×1074.在实数﹣1,﹣1,,3.14中,属于无理数的是()A.﹣1B.﹣1C.D.3.145.下列各式中运算正确的是()A.3a﹣a=2B.﹣3(2a﹣1)=﹣6a﹣1C.2a3+3a2=5a5D.﹣a2b+4ba2=3a2b6.实数x满足x3=71,则下列整数中与x最接近的是()A.3B.4C.5D.67.如果单项式3xy n和﹣4x m y2是同类项,则m和n的值是()A.2,1B.﹣2,1C.﹣1,2D.1,28.已知x=6是方程ax+1=3x﹣5的解,则a的值为()A.2B.﹣2C.D.﹣9.用四舍五入法将5109500精确到万位,可表示为()A.510B.5.10×106C.511D.5.11×10610.与+1最接近的整数是()A.4B.5C.6D.811.下列计算正确的是()A.×(﹣2)=0×(﹣2)=0B.C.3÷D.12.实数a,b在数轴上对应的点的位置如图所示,下列结论正确的是()A.a>b B.|a|<|b|C.﹣a>b D.a>﹣b13.学校组织植树活动,已知在甲处植树的有23人,在乙处植树的有17人.现调20人去支援,使在甲处植树的人数是乙处植树人数的2倍.设调往甲处植树x人,则可列方程()A.23﹣x=2(17+20﹣x)B.23﹣x=2(17+20+x)C.23+x=2(17+20﹣x)D.23+x=2(17+20+x)14.在解方程﹣=1时,去分母正确的是()A.3(x﹣1)﹣2(2x+1)=1B.3x﹣1﹣2(2x+1)=6C.3(x﹣1)﹣4x+1=6D.3(x﹣1)﹣2(2x+1)=615.若x2﹣5x﹣6=0,则代数式x3﹣4x2﹣11x+2020的值是()A.2026B.﹣2026C.2025D.﹣202516.已知a,b,c三个数,a为7﹣,b为6﹣,c为5﹣,则这三个数的大小关系是()A.c<b<a B.b<c<a C.b<a<c D.a=b=c17.小明编了一道数学谜题:3×2□﹣9=□2,若等号左、右两边的“□”内表示同一个数字,这个数字记为x,则()A.3(20+x)﹣9=10x+2B.3(2+x)﹣9=10x+2C.3(20+x)﹣9=20x+2D.3×2x﹣9=20x18.已知a,b都是有理数,如果|a+b|=b﹣a,那么对于下列两种说法:①a可能是负数;②b一定不是负数,其中判断正确的是()A.①②都错B.①②都对C.①错②对D.①对②错二.填空题19.如果水位升高5m记作+5m,那么水位下降6m记作m.20.﹣的绝对值是.21.比较大小:2﹣3.(用“>”或“<”或“=”填空)22.单项式x3的系数是.23.写出一个一元一次方程,使它的解为﹣1,方程为.24.用代数式表示“a的相反数与b的2倍的和”:.25.计算:=.26.有理数a在数轴上离开原点的距离为5,有理数b在数轴上离开原点的距离为3,则a+b=.27.已知两个整数m,n满足m•n=﹣6,则|m+n|=.28.定义运算法则:a⊕b=a2+ab,例如3⊕2=32+3×2=15.若2⊕x=10,则x的值为.29.已知≈0.6993,≈1.507,则≈.30.某商店里有一件衣服吊牌丢失,商店老板找到进货单,发现进货价为80元,已知商店里打8折后还赚30%,则原吊牌的价格为元.31.若关于x的方程x﹣2b=1与5x=6+2x的解相同,则b的值为.32.某数学兴趣小组在观察等式ax3+bx2+cx+d=(x﹣2)3时发现:当x=1时,a+b+c+d=(1﹣2)3=﹣1.请你解决下列问题:(1)﹣a+b﹣c+d=;(2)8a+4b+2c=.三.解答题33.计算:(1)(﹣2)×3﹣6×(﹣);(2)﹣32+|﹣23|.34.先化简再求值:﹣(x2﹣6xy+9)+2(x2+2xy),其中x=﹣2,.35.解下列方程:(1)3x+1=﹣2;(2).36.一辆出租车从A站出发,在一条东西走向的道路上行驶,记向东行驶的路程为正,行驶的路程依次为(单位:km):+12,﹣8,+4,﹣13,﹣6,﹣7.(1)通过计算说明出租车是否回到A站;(2)若出租车行驶的平均速度为50km/h,则出租车共行驶了多少时间?37.用A型和B型机器生产同样的产品,已知5台A型机器一天的产品装满8箱后还剩4个,7台B型机器一天的产品装满11箱后还剩1个,每台A型机器比B型机器一天多生产1个产品,求每箱装多少个产品?38.2019年11月18日,第二届华侨进口商品博览会在青田落下帷幕,本届博览会成果丰硕,意向成交额为25.3亿元,是第一届博览会意向成交额的2倍少5.9亿.(1)求第一届华侨进口商品博览会的意向成交额.(2)以这样的增长速度,预计下届华侨进口商品博览会意向成交额(精确到亿元).39.定义“”运算,观察下列运算:(+2)(+13)=15,(﹣10)(﹣12)=22;(﹣5)(+13)=﹣18,(+8)(﹣10)=﹣18;0(+13)=﹣13,(﹣10)0=10.(1)请你认真思考上述运算,归纳“”运算的法则:两数进行“”运算时,同号,异号,并把绝对值;特别地,0和任何数进行“”运算或任何数和0进行“”运算,都得这个数的.(2)计算:(﹣15)[0(+7)];(3)若(2a)×3+2=4a,求a的值.40.数学家欧拉最先把关于x的多项式用记号f(x)来表示.例如:f(x)=x2+x﹣1,当x=a时.多项式的值用f (a)来表示,即f(a)=a2+a﹣1.当x=3时,f(3)=32+3﹣1=11.(1)已知f(x)=x2﹣2x+3,求f(1)的值.(2)已知f(x)=mx2﹣2x﹣m,当f(﹣3)=m﹣1时,求m的值.(3)已知f(x)=kx2﹣ax﹣bk(a.b为常数),对于任意有理数k,总有f(﹣2)=﹣2,求a,b的值.参考答案一.选择题(共18小题)1.【解答】解:2的相反数是﹣2,故选:C.2.【解答】解:∵4的平方是16,∴16的算术平方根是4.故选:A.3.【解答】解:1000万=10000000=1.0×107.故选:D.4.【解答】解:A.﹣1是整数,属于有理数,故本选项不合题意;B.是无理数,故本选项符合题意;C.是分数,属于有理数,故本选项不合题意;D.3.14是有限小数,属于有理数,故本选项不合题意.故选:B.5.【解答】解:3a﹣a=2a,故A错误,不符合题意;﹣3(2a﹣1)=﹣6a+3,,故B错误,不符合题意;2a3与3a2不是同类项,不能合并,故C错误,不符合题意;﹣a2b+4ba2=3a2b,故D正确,符合题意;故选:D.6.【解答】解:∵x3=71,33=27,43=64,53=125,63=216,∴43与x3最接近,∴与x最接近的是4,故选:B.7.【解答】解:∵单项式3xy n和﹣4x m y2是同类项,∴m=1,n=2,故选:D.8.【解答】解:把x=6代入ax+1=3x﹣5得6a+1=18﹣5,解得a=2.故选:A.9.【解答】解:5109500≈5.11×106(精确到万位).故选:D.10.【解答】解:∵3.5<<4,∴4.5+1<5,∴与+1最接近的整数是5,故选:B.11.【解答】解:A、×(﹣2)=+=1,不符合题意;B、(﹣)÷(﹣)=(﹣)÷(﹣)=(﹣)×(﹣6)=,符合题意;C、3÷(﹣)×(﹣2)=3×(﹣2)×(﹣2)=12,不符合题意;D、(﹣1)2﹣22=﹣4=﹣1,不符合题意.故选:B.12.【解答】解:由数轴可知:a<0<b,且2>|a|>1>|b|,选项A,a>b,错误,不符合题意;选项B,|a|<|b|,错误,不符合题意;选项C,﹣a=|a|>b=|b|,正确,符合题意;选项D,a>﹣b,错误,不符合题意.故选:C.13.【解答】解:设应调往甲处植树x人,则调往乙处植树(20﹣x)人,根据题意得:23+x=2(17+20﹣x).故选:C.14.【解答】解:在解方程﹣=1时,去分母为3(x﹣1)﹣2(2x+1)=6,故选:D.15.【解答】解:∵x2﹣5x﹣6=0,∴x2=5x+6,x2﹣5x=6,∴原式=x2•x﹣4x2﹣11x+2020=(5x+6)x﹣4x2﹣11x+2020=5x2+6x﹣4x2﹣11x+2020=x2﹣5x+2020=6+2020=2026.故选:A.16.【解答】解:∵a﹣b=(7﹣)﹣(6﹣)=7﹣﹣6+=1﹣(﹣)>0,b﹣c=(6﹣)﹣(5﹣)=6﹣﹣5+=1﹣(﹣)>0,∴c<b<a,故选:A.17.【解答】解:由题意可得,3×(2×10+x)﹣9=10x+2,即3(20+x)﹣9=10x+2,故选:A.18.【解答】解:|a+b|=,当a+b=b﹣a时,可得到2a=0,即a=0,此时把a=0代入等式|a+b|=b﹣a,则|b|=b,即b≥0,∴②b一定不是负数,正确;当﹣a﹣b=b﹣a时,得到2b=0,即b=0,此时把b=0代入等式|a+b|=b﹣a,则|a|=﹣a,即a≤0;∴a有可能是负数,①正确;∴①②都正确,符合题意,故选:B.二.填空题(共14小题)19.【解答】解:如果水位升高5m记作+5m,那么水位下降6m记作﹣6m,故答案为:﹣6.20.【解答】解:根据负数的绝对值等于它的相反数可得,|﹣|=,故答案为:.21.【解答】解:∵2是正数,∴2>0.∵﹣3是负数,∴﹣3<0,∴2>﹣3.故答案为:>.22.【解答】解:单项式x3的系数是.故答案为:.23.【解答】解:解为﹣1的方程有:x+1=0或2x=﹣2等,答案不唯一.故答案是:x+1=0.24.【解答】解:依题意得:﹣a+2b.故答案是:﹣a+2b.25.【解答】解:=÷(﹣+)=÷=×6=.故答案为:.26.【解答】解:∵有理数a在数轴上离开原点的距离为5,∴a=±5∵有理数b在数轴上离开原点的距离为3∴b=±3∴a+b=5+3=8或a+b=5+(﹣3)=2或a+b=﹣5+3=﹣2或a+b=﹣5+(﹣3)=﹣8故答案为:8或2或﹣2或﹣8.27.【解答】解:∵﹣6=﹣6×1=﹣1×6=2×(﹣3)=3×(﹣2),∴m+n=±5或±1,∴|m+n|=5或1,故答案为:5或1.28.【解答】解:∵2⊕x=10,∴22+2x=10,即4+2x=10,解得x=3.故答案为:3.29.【解答】解:∵≈0.6993,∴≈0.06993,故答案为:0.06993.30.【解答】解:设原吊牌的价格为x元,由题意依:0.8x﹣80=80×30%,解得x=130.故原吊牌的价格为130元.故答案为:130.31.【解答】解:5x=6+2x,5x﹣2x=6,3x=6,x=2,把x=2代入方程x﹣2b=1中可得:2﹣2b=1,2b=1,b=,故答案为:.32.【解答】解:(1)把x=﹣1代入等式,得﹣a+b﹣c+d=(﹣1﹣2)3,∴﹣a+b﹣c+d=(﹣3)3=﹣27,故答案为:﹣27;(2)把x=0代入等式,得d=(0﹣2)3=(﹣2)3=﹣8,把x=2代入等式,得8a+4b+2c+d=(2﹣2)3,∴8a+4b+2c+d=0,∴8a+4b+2c﹣8=0,∴8a+4b+2c=8,故答案为:8.三.解答题(共8小题)33.【解答】解:(1)(﹣2)×3﹣6×(﹣)=﹣6﹣6×+6×=﹣6﹣3+2=﹣7;(2)﹣32+|﹣23|=2﹣9+8=1.34.【解答】解:原式=﹣x2+6xy﹣9+2x2+4xy =2x2﹣x2+6xy+4xy﹣9=x2+10xy﹣9,当x=﹣2,y=时,原式=(﹣2)2+10×(﹣2)×﹣9=4+(﹣4)﹣9=0﹣9=﹣9.35.【解答】解:(1)移项得:3x=﹣2﹣1,合并同类项得:3x=﹣3,系数化为1得:x=﹣1;(2)去分母得:2(y﹣1)=6﹣3(y+3),去括号得:2y﹣2=6﹣3y﹣9,移项得:2y+3y=6﹣9+2,合并同类项得:5y=﹣1,解得:y=﹣.36.【解答】解:(1))12﹣8+4﹣13﹣6﹣7=﹣18,∴出租车没有回到A站;(2)总路程:|+12|+|﹣8|+|+4|+|﹣13|+|﹣6|+|﹣7|=12+8+4+13+6+7=50(km),出租车共行驶的时间为:50÷50=1(h),答:出租车共行驶的时间为1h.37.【解答】解:设B型机器一天生产x个产品,则A型机器一天生产(x+1)个产品,由题意得,=,解得:x=19,7x﹣1=132,132÷11=12(个).答:每箱装12个产品.38.【解答】解:(1)设第一届华侨进口商品博览会的意向成交额为x亿元,依题意得:2x﹣5.9=25.3,解得:x=15.6,答:第一届华侨进口商品博览会的意向成交额为15.6亿元;(2)第二届的增长率为:(25.3﹣15.6)÷15.6=9.7÷15.6=,则下届华侨进口商品博览会意向成交额为:25.3×(1+)=25.3×≈41(亿元).答:下届华侨进口商品博览会意向成交额41亿元.39.【解答】解:(1)观察发现:两数进行※运算时,同号得正,并把绝对值相加;异号得负,并把绝对值相加;特别地,0和任何数进行※运算,或任何数和0进行※运算,得这个数的相反数.故答案为:得正,得负,相加,相反数;(2)(﹣15)※[0※(﹣7)]=(﹣15)※7=﹣(15+7)=﹣22;(3)当a>0时,3(2+a)+2=4a,∴6+3a+2=4a,解得a=8,当a<0时,3(a﹣2)+2=4a,∴3a﹣6+2=4a,∴a=﹣4,综上所述,a的值是8或﹣4.40.【解答】解:(1)当x=1时,f(1)=1﹣2+3=2;(2)当x=﹣3时,f(﹣3)=mx2﹣2x﹣m=9m+6﹣m=m﹣1,∴m=﹣1;(3)当x=﹣2时,f(﹣2)=kx2﹣ax﹣bk=4k+2a﹣bk=﹣2,∴(4﹣b)k+2a=﹣2,∵k为任意有理数,∴4﹣b=0,2a=﹣2,∴a=﹣1,b=4.。
七年级语文上册期末试卷附答案

七年级语文上册期末试卷附答案七年级语文上册期末试卷附答案七年级的学生在进行语文期末复习的时候,多做一些复习试卷能够帮助我们巩固知识点,有效应对考试,店铺为大家力荐了七年级语文上册期末试卷以及参考答案,给大家作为参考,欢迎阅读!七年级语文上册期末试卷一、积累与运用(23分)1.默写填空。
(5分)(1) , 若出其中; , 若出其里。
(2) ,风正一帆悬。
(3)小明学习成绩好,组织能力强,但他刚转到这个班,不为同学所了解,因此在班干部竞选中落选了。
李老师引述了《论语(十二章)》中的两句话:“ , ”帮他解开了心中的疙瘩。
2.下列加点字的读音全都正确的一项是( )(2分)A.静谧(bì) 枯涸(hé) 啜泣(zhuì)B.骸骨(hé) 玷污(diàn) 清洌(liè)C.梦寐(mèi) 泯灭(mǐn) 分歧(qí)D.禀告(bǐng) 厄运(è) 迸溅(bìng)3.下列词语中没有错别字的一项是( )(2分)A.留连忘返屈径通幽险象迭生恍然大悟B.瘦骨嶙峋黯然缥缈随声附合苦心孤诣C.小心翼翼精疲力尽各得其所嫦娥奔月D.一丝不苟得意忘形引人瑕思水波粼粼4.下面的连接不正确的一项是 ( ) (2分)A.《绿色蝈蝈》——散文——法布尔——德国B.《西游记》——小说——吴承恩——中国C.《皇帝的新装》——童话——安徒生——丹麦D.《济南的冬天》——散文——老舍——中国5.下列句子中加点的成语运用错误的项是( )(2分)A.语文老师每每讲到精彩处,会情不自禁地把衣袖越捋越高,连下课时间也忘了。
B.他知道最好的办法就是和大家保持一致,然而他不肯做一个随声附和的人。
C.《西游记》给人们提供了一个又一个神通广大、除恶灭邪、大快人心的英雄梦!D.2013年中国成功地发射了“神舟”十号,这是多么骇人听闻的消息!6.下列句子中修辞手法运用不恰当的一项是( )(2分)A.图书馆是书籍的宝库,那里贮藏着无数的人类智慧的结晶。
上宝中学初一第一学期英语期末复习卷(三)

上宝中学初一第一学期英语期末复习卷(三)一.Choose the best answer(15%)1.My hobby is to play _____ Chinese chess with my father.A.aB. anC. TheD. /2.Though I’m n ot good at translation, my teacher encouraged me to _____ it in English.A.talkB.sayC.speakD. Tell3.You should bake this cake _____ 20 minutes _____ 180℃.A.At, forB. For, atC. For, ofD. Of, for4._____ the musical sounds!A.How wonderfullyB. What wonderfullyC. How wonderfulD. What wonderfully5.My mother is totally undomesticated because she never _________ my dad.A.bakes... toB. cooks... forC. washes... ToD. is angry with6.He went to Shanghai ______ September 3, 1991 and came back ______ cold morning last year.A.in, onB. on, inC. on, onD. in,in7.Do you like music ______ makes you relaxed?A.itB. whatC. /D. that8.Which of the following sentences is not wrong?A.Because the weather was not very good, so we decided to go picnicking the next day.B.I heard a letter from my aunt last Friday.C.Please write to me on Class 1, Grade 7, Rose Garden School, Garden City.D.W e’re going to have a lot of food and drink.9.The hair on your head may give _____ your health.A.an answer toB. a clue toC. a key toD. an entrance to10.Which of the following is wrong?A.One million dollars is a lot of money.B. He or you have taken my penC. We each has a dictionaryD. The lost have been found. Thank you for your cooperation.11.-Must I finish writing the composition today? No,you______.A.mustn’tB. c an’tC. n eedn’tD. may not12.In many western countries much has been done to prevent environment from______.A.pollutedB. To be pollutedC. be pollutingD. being polluted13.______ I know the money is safe, I shall not worry about it.A.Even thoughB. UnlessC. As long asD. While14.Your story is perfect; I’ve never heard ______ before.A.the better oneB. the best oneC. a better oneD. a good one15.Hello! May I speak to Mary, please? -______. I’ll go and get her.A.SpeakingB. Hold on, pleaseC. I don’t thing soD. Hurry up, please二.Word translation16.My son was blind at______. Only last week he was able to see. (birthday)17.______ were made for an early start the next morning.(prepared)18.They placed great emphesis on the individual’s ______.( free)19.It is ______ to see old people degrades like that.( pity)20.She likes to use plant as indoor ______(decorate)21.My dream is to be a ______ of The National Geographic Magazine.( photograph)22.The winter in Shanghai is ______ cold.( frozen)23.An ____ as the person who asks the questions in an interview.( interview)24. A great many people are queuing up outside the bakery for the _____ baked bread.( fresh)25.You had better ______ the beer before drinking it.( refrigerator)三.Use the proper forms of the verbs to fill in the blanks:26.The Christ mas is coming, but I’m looking forward to________ alone.(be)27.The police ______ the door down in order to get into the building just now.(beat)28.She put it in an oven after she_______ the mixture for 5 minutes.( stir)29.D on’t ask your mother to get your coat______ . You should do it by yourself.(wash)30.A knife and fork _______ needed for you to have western style food.(be)四.Rewrite the following sentences as required31.They worked hard to get good marks in the final exams.(划线提问)_____ _____ they work hard?32.I prefer not to come here for the party is so boring.(同义句)I ____ _____ ____ come here for the party is so boring.33.We think that English is very useful. (反义疑问句)We think that English is very useful, _____ _____.34.I threw away the rotten eggs yesterday. (划线提问)_____ _____ you do with the rotten eggs yesterday?35.Factory workers took away the skin and bones if the fish.(同义句)Factory workers ______ the skin and bones of the fish.Choose the words or expressions and complete the passage (选择最恰当的单词或词语完成短文)In this month’s University Express, Lynn Zhou interviews students around the world about unforgettable “firsts” in their lives. Read their answers to the question: What was an unforgettable first in life for you?Miguel: For me, an unforgettable first was getting my driving license. In Spain, a person can do this at the age of eighteen. That’s when I got mine. Being able to drive my father’s car that summer gave me 1___ and made me feel like an adult. For example, I’m fromMadrid, and my girl friend is from a town about twenty miles away. Driving a car made it easy for me to see her more often. 2__, I was able to take weekend trips with friends to other cities.Gina: I went on my first date soon after my nineteenth birthday with my best friend’s brother. He invited me to a movie. We were both very 3 , so we didn’t talk much. Two weeks later, I went to a high school dance with him and we had a great time. After that, we spent most of the summer together, but then he and his family moved. I thought he would write to me, but I’ve never 4 him ever since. I guess you could say he was my first boyfriend.Soo-Jin: An unforgettable first for me was 5 alone. When I was seventeen, I spent the summer in New York City studying English. I took a plane from Korea to the United Stated by myself. It was my first visit to another country, and I was frightened at first, but later I controlled my fears and learned to be more 6 . I also made friends from other countries. Now I’m back in the United States and I’m attending university!1. A) knowledge B) freedom C) impression D) advice2. A) Also B) Instead C) Finally D) Actually3. A) lonely B) forgetful C) shy D) angry4. A) argued with B) got rid of C) looked after D) heard from5. A) going to school B) practicing EnglishC) studying abroad D) meeting strangers6. A) generous B) independent C) hardworking D) carefulRead the passage and fill in the blanks with proper words(在短文的空格内填入适当的词语,使短文内容通顺,每空格限填一词,首字母已给)If you go to visit Stevening, you can stay in a simple but comfortable family home or a small guesthouse, or try the international dining room and luxurious bedrooms at the Grand Hotel. You can b___1___ a room by phoning or e-mailing the owner. You can get a list from the Tourist Information Office which is open from 9 a.m. to 5 p.m. on weekdays.There is also campsite near the town. Usually there is space for small teams of tourists, but large g___2___ should call the manager in advance(提前)to check if there is space big enough for them.Stevening has two main shopping areas, the new Stevening Mall and the t___3___ market area which has a history of over 50 years. Please note that cars are only allowed into Square between 7 a.m. and 9 p.m. The Mall has over forty shops, i___4___ a department store, clothes shops for all ages, sports and a supermarket.For sports, visit the Stevening Leisure Center. It o__5___ indoor tennis, volleyball and a fitness center. You can pay for a half day, or join the Sports Clubs, which allows you to use the facilities(设施)all day for free and at a special price in the evenings.The swimming pool is open from May to September. Classes are held in the pool between 3 and 5 every afternoon except Sundays. There are courses for different l___6___, so don't worry if you're a beginner.From Stevening, it is easy to visit a number of places of interest. The peace of the Kerrow Hills is a short free bus ride from the town center. People who love walking may climb up Kerrow Mountain, but less a___7___ visitors can also enjoy the wonderful views by taking the little train. It stops just below the top of the mountain. You only need to walk the last few meters.Keys:DBBCB 6-10CDDBC 11-15 CDCCBbirth, preparations, freedom, pitiful, decorations, photographer, freezing, interviewer, freshly, refrigeratebeing, beat, had stirred, washed, isWhy did, would rather not, isn’t it, what did, removedBACDCBBook, groups, traditional, including, offers, levels, active。
人教版七年级上数学期末复习训练卷

人教版七年级上数学期末复习训练卷一.选择题(共12小题,满分36分,每小题3分)1.(3分)计算|﹣6|﹣1的最后结果是()A.﹣5B.5C.﹣7D.72.(3分)已知﹣7是关于x的方程2x﹣7=ax的解,则a的值是()A.﹣2B.﹣3C.3D.﹣143.(3分)如果x=y,那么根据等式的性质下列变形不正确的是()A.x+2=y+2B.3x=3y C.5﹣x=y﹣5D.=4.(3分)下列计算正确的是()A.2﹣3=1B.a2+2a2=3a4C.3×(﹣1)2=3D.﹣|﹣3|=3 5.(3分)一张桌子摆放着若干盘子,从三个方向上看,三种视图如下所示,则这张桌子上共有()个盘子A.10B.11C.12D.136.(3分)1﹣2x2+xy﹣y2=1﹣(),在括号里填上适当的项应该是()A.2x2+xy﹣y2B.﹣2x2﹣xy﹣y2C.2x2﹣xy+y2D.x2﹣xy+y2 7.(3分)如图,点C在线段AB上,若AB=10,BC=2,M是线段AB的中点,则MC的长为()A.2B.3C.4D.58.(3分)下列四个说法:①射线AB和射线BA是同一条射线;②若点B为线段AC的中点,则AB=BC;③锐角和钝角互补;④一个角的补角一定大于这个角.其中正确说法的个数是()A.0个B.1个C.2个D.3个9.(3分)三个连续奇数的和为81,则其中最小的一个奇数是()A.23B.25C.27D.2910.(3分)已知AB是圆锥(如图1)底面的直径,P是圆锥的顶点,此圆锥的侧面展开图如图2所示.一只蚂蚁从A点出发,沿着圆锥侧面经过PB上一点,最后回到A点.若此蚂蚁所走的路线最短,那么M,N,S,T(M,N,S,T均在PB上)四个点中,它最有可能经过的点是()A.M B.N C.S D.T11.(3分)一只笼子中装有若干只蜘蛛和3只甲虫,共42条腿,每只蜘蛛8条腿,每条甲虫6条腿,则笼子中蜘蛛有()A.1只B.2只C.3只D.4只12.(3分)点C为线段AB的延长线上的一点,则下列各式中成立的是()A.BC>AB B.AB>BC C.AB=BC D.AC>AB二.填空题(共4小题,满分12分,每小题3分)13.(3分)若∠α=42°,则∠α的余角为°,∠α的补角为°.14.(3分)已知x=3是关于x的方程x﹣1=a的一个解,则a=.15.(3分)如图,下列几何体是由棱长为1的小立方体按一定规律在地面上摆成的,若将露出的表面都涂上颜色(底面不涂色),则第n个几何体中只有两个面涂色的小立方体共有个.16.(3分)铁路上的火车票价是根据两站距离的远近而定的,距离愈远,票价愈高.如果一段铁路上共有五个车站,每两站间的距离都不相等,则这段铁路上的火车票价共有种.三.解答题(共9小题,满分72分,每小题8分)17.(8分)某饮品店只出售甲、乙两种奶茶,每杯甲奶茶需用糖15克,每杯乙奶茶需用糖18克.在某半个小时内,售出的两种奶茶恰好用去了相同数量的糖,问:(1)这半个小时内,这两种奶茶分别至少用去了多少克糖?(2)如果这半个小时内,这两种奶茶一共售出的杯数在20至30之间,则这两种奶茶一共售出多少杯?18.(8分)解方程:(1)x=;(2)x÷=12.19.(6分)先化简,再求值:5x2y﹣7(x2y﹣xy2)﹣3xy2,其中x=2,y=﹣1.20.(6分)一只小虫从点A出发向北偏西30°方向爬行了3cm到点B,再从点B出发向北偏东60°方向爬行了3cm到点C,(1)试画图确定A、B、C的位置;(2)从图上量出点C到点A的距离.(精确到0.1cm)(3)指出点C在点A的什么方位?21.(6分)(1)已知:点C在线段AB上,线段AC=6厘米,BC=4厘米,点M、N分别是AC、BC的中点,求线段MN的长度.(2)根据上述计算过程和结果,设AC+BC=a,其他的条件不变,你能猜出MN的长度吗?请用一句简洁的语言表述你的发现.22.(8分)某城市按以下规定收取每月的水费:用水量如果不超过6吨,按每吨1.2元收费;如果超过6吨,未超过的部分仍按每吨1.2元收取,而超过部分则按每吨2元收费.如果某用户5月份水费平均为每吨1.4元,那么该用户5月份应交水费多少元?23.(8分)教育部数据显示,近五年共有创业大学生约55万人,国务院办公厅也出台了《关于进一步支持大学生创业的指导意见》来支持大学生创新创业.河南的小张也加入了创业大军,回到自己家乡,做茶叶加工,然后销售到全国各地,创业初期,小张从茶农那里采购甲,乙两种品种的茶叶共100千克.(1)如果小张购进甲,乙两种茶叶共用了9600元,已知每千克甲种茶叶进价80元,每千克乙种茶叶进价120元,求小张购进甲,乙两种茶叶各多少千克?(2)在(1)的条件下,经过加工,小张把甲种茶叶加价50%作为标价,乙种茶叶加价40%作为标价.由于乙种茶叶深受大众的喜爱,在按标价进行销售的情况下,乙种茶叶很快售完,接着甲种茶叶的最后10千克按标价打折处理全部售完.在这次销售中,小张获得的利润率为42.5%.求甲种茶叶打几折销售?24.(10分)已知A、B两点在数轴上表示的数为a和b,M、N均为数轴上的点,且OA<OB.(1)若A、B的位置如图所示,试化简:|a|﹣|b|+|a+b|+|a﹣b|.(2)如图,若|a|+|b|=8.9,MN=3,求图中以A、N、O、M、B这5个点为端点的所有线段长度的和;(3)如图,M为AB中点,N为OA中点,且MN=2AB﹣15,a=﹣3,若点P为数轴上一点,且P A=AB,试求点P所对应的数为多少?25.(12分)如图所示,OB是∠AOC的平分线,OD是∠COE的平分线.(1)如果∠AOB=50°,∠DOE=35°,那么∠BOD是多少度?(2)如果∠AOE=160°,∠COD=25°,那么∠AOB是多少度?。
人教版-学年度上学期七年级数学期末复习试卷四 几何图形初步(含答案)

2018-2019七上期末复习试题四学生版第四章几何图形初步检测卷(时间:120分钟满分:120分)一、选择题(每小题3分,共30分)1.下列几何体中,属于柱体的有( )①长方体;②正方体;③圆锥;④圆柱;⑤四棱锥;⑥三棱柱.A.2个 B.3个 C.4个 D.5个2.下列语句:①点A在直线上;②直线的一半就是射线;③延长直线AB到点C;④射线OA与射线AO是同一射线.其中正确的说法有( )A.0个 B.1个 C.2个 D.3个3.如图,圆柱体的表面展开后得到的平面图形是( ).4.如图四个图形都是由6个大小相同的正方形组成,其中是正方体展开图的是( )A.①②③ B.②③④ C.①③④ D.①②④5.如图所示的正方体的展开图是( )6.由若干个相同的小正方体组合而成的一个几何体从不同方向看到的图形如图,则组成这个几何体的小正方体的个数是()从正面看从左面看从上面看A.3个B.4个C.5个D.6个7.若∠与∠互为补角,∠是∠的2倍,则∠为()A.30°B.40°C.60°D.120°8.下列立体图形中:①圆柱;②圆锥;③正方体;④四棱柱,面数相同的是( )A.①② B.①③ C.②③ D.③④9.已知∠AOB=20°,∠AOC=4∠AOB,OD平分∠AOB,OM平分∠AOC,则∠MOD的度数是()A.20°或50° B.20°或60° C.30°或50° D.30°或60°10.4点10分,时针与分针所夹的小于平角的角为()A.55°B.65°C.70°D.以上结论都不对二、填空题(每小题3分,共15分)11.木工师傅用刨子可将木板刨平,经过刨平的木板上的两个点,就能弹出一条笔直的墨线,而且只能弹出一条墨线,用数学知识解释其依据为: .12.如图,一个正方体的每个面分别标有数字1,2,3,4,5,6.根据图中该正方体三种状态所显示的数据,可推出“?”处的数字是 .①②③13.两个完全相同的长方体的长、宽、高分别是5 cm ,4 cm ,3 cm ,把它们叠放在一起组成一个新长方体,在这些新的长方体中,表面积最大是14平面上有三点A 、B 、C ,①连接其中任意两点,可得线段3条;②经过任意两点画直线,可得到直线 .15如图,∠AOC=50°,∠BOC=20°,OE 平分∠BOC ,OF 平分∠AOC ,则∠EOF 的度数为 .三、解答题(共75分) 16.(6分)已知∠与∠互余,且∠比∠小25°,求2∠-51∠的值.17.(6分)如图,C 为线段AD 上一点,点B 为CD 的中点,且AD =8cm ,BD =2cm . (1)图中共有多少条线段? (2)求AC 的长;(3)若点E 在直线AD 上,且EA =3cm .求BE 的长.18.(7分)点A 、B 、C 在同一直线上。
水二中2020七(上)期末复习作业卷(一)复习卷(一) 答案

湖水二中2020-2021七(上)期末复习卷一、选择题(每小题3分,共30分)1.四个有理数-2、1、0、-1,其中最小的是( ) A .1 B .0 C .-1 D .-2 【答案】D.2.下列关于单项式-253xy 的说法中,正确的是( )A .系数是-25,次数是4B .系数是-25,次数是3C .系数是-5,次数是4D .系数是-5,次数是3【答案】A.3.多项式x 3+x 2+x +1的次数是( )A .3B .4C .5D .6【答案】A .4.下列式子中,是一元一次方程的是( )A .5x -3B .x 2-8=x +7C .1+2x =50D . x -y =4 【答案】C.5.如图,将直角三角形绕其斜边旋转一周,得到的几何体为( )【答案】D.6.下面等式成立的是( ) A . 83.5°=83°5' B . 37°12'36"=37.48° C . 24°24'=24. 4° D . 41.25°=41°25' 【答案】C .7.长方形一边的长等于3a +2b ,另一边比它长a -b ,则这个长方形的周长是( )A .14a +6bB .7a +3bC .10a +10bD .12a +8b 【答案】A .8.几个人共同种一批树苗,如果每人种5棵,则剩下3棵树苗未种;如果每人种6棵,则缺4棵树苗.若设参与种树的人数为x 人,则下面所列方程中正确的是( )A .5x +3=6x +4B .5x +3=6x -4C .5x -3=6x -4D .5x -3=6x +4 【答案】B .9.在数轴上有理数a 、b 、c 得点如图所示,若ac <0,a +b <0,则( )A .b +c <0B .⎪b ⎪<⎪c ⎪C .⎪a ⎪>⎪b ⎪D .abc <0 【答案】C .10.如图,将长方形ABCD 分割成1个灰色长方形与148个面积相等的小正方形.若灰色长方形的长与宽之比为5∶3,则AD ∶AB 的值为( ) A .5∶3 B .17∶15 C .47∶29 D .23∶14二、填空题(每小题3分,共18分)11.某市2016年元旦最低气温为—2℃,最高气温为8℃,这一天最高气温比最低气温高_______℃. 【答案】10.12.据统计,全国每年被浪费的食物总量可养活约350 000 000人.用科学记数法表示为______. 【答案】3.5×108.13.已知∠1=32°5′,∠1与∠2互余,则∠2=___________. 【答案】57°55′.14.若关于x 的方程2x -1=3与3103a x--=的解相同,则a 的值是 .15.如图,延长线段AB 到C ,使BC =12AB ,D 为AC 的中点,DC =2,则AB 的长为________.【答案】83.16.对于一个大于1的正整数n 进行如下操作:①将n 拆分为两个正整数a 、b 的和,并计算乘积a×b ;②对于正整数a 、b 分别重复此操作,得到另外两个乘积;③重复上述过程,直至不能再拆分为止(即拆分到正整数1). 当n =6时,所有的乘积的和为_________,当n =100时,所有的乘积的和为_________.三、解答题(共8小题,共72分) 17.(8分)计算:(1) (-1)10×2+(-2)3÷4; (2) 2m -3(2m +3n)+4(n -m).18.(8分)先化简,再求值:2x 2-5x +4-(2x 2-6x ) ,其中x =-3 .19.(8分)解方程:(1) 2x +3=6-4x ; (2) x -24=1-4-3x6.20. (8分)如图,已知∠AOB =56°,∠AOC =10° ,OD 平分∠BOC,求∠BOD 的度数.21.(8分)A 、B 两种型号机器生产同一种产品,已知7台A 型机器一天生产的产品装满8箱后还剩2个,5台B 型机器一天生产的产品装满6箱后还剩8个,每天A 型机器比每台B 型机器一天少生产2个产品,求每箱装多少个产品?22.(本题10分)已知:如图,点C 为线段AB 的中点,点E 为线段AB 上的点,点D 为AE 的中点.(1) 若线段AB =a ,CE =b ,|a -15|+(b -4.5)2=0,求a 、b ; (2) 在(1)的条件下,求线段DE ;(3) 若AB =15,AD =2BE ,求线段CE ;23.(10分)把线段AB 延长到D ,使BD =32AB ,再延长线段BA 到C ,使CA =AB .(1) 请补充图形并求出CD 是AB 的几倍?(2) 补充完后的图中共有几条线段?若图中所有线段长度和为46,求线段AB 的长度; (3) 若AB =6cm ,点E 、F 分别是线段AC 、CD 的中点,(若固定线段CD 不动)当线段AB 以2cm /秒的速度向右运动t 秒时,是否存在点F 是线段BE 的中点.若存在,请求出t 的值;若不存在,请说明理由.DABOCA B24. (12分)已知∠AOC=m°,∠BOC=n°,且m、n满足|21n-40|+(2m-80)2=0.(1)如图1,求∠AOC、∠BOC的度数;(2)如图2,若OM平分∠AOC,ON在∠BOC内部,分∠BOC为1∶3的两部分,请画出ON,并求∠MON的度数;(3)如图3,过点O作射线OD,若2∠AOD=3∠BOD,求∠BOD的大小.学海迷津:数学学习十大方法AB C图1OMAB C图2AB图3O1、配方法所谓配方,就是把一个解析式利用恒等变形的方法,把其中的某些项配成一个或几个多项式正整数次幂的和形式。
北师大七年级上《第五章一元一次方程》期末总复习试卷(含答案)

北师大版七年级(上)数学期末总复习:一元一次方程培优练习题满分:100分时间:90分钟一.选择题(每小题3分,共30分)1.若关于x的方程mx m﹣2﹣m+3=0是一元一次方程,则这个方程的解是()A.x=0B.x=3C.x=﹣3D.x=22.某书上有一道解方程的题:+1=x,□处在印刷时被油墨盖住了,查后面的答案知这个方程的解是x=﹣2,那么□处应该是数字()A.7B.5C.2D.﹣23.已知是关于x的方程2x+x﹣2a=0的根,则a的值为()A.﹣1B.﹣3C.1D.34.下列方程是一元一次方程的是()A.x2﹣2x+3=0B.2x﹣5y=4C.x=0D.=35.小彬种了一种树苗,开始时树苗高为40cm,栽种后树苗每周长高约5cm,大约几周后树苗长高到1m?如果设x周后树苗长高到1m,可列方程为()A.40+5x=1B.40﹣5x=1C.40﹣5x=100D.40+5x=100 6.电视台2套“开心辞典”栏目中,有一期的题目如图所示,两个天平都平衡,则三个球体的重量等于()个正方体的重量.A.2B.3C.4D.57.已知a2+2a﹣3=0,则代数式2a2+4a﹣3的值是()A.﹣3B.0C.3D.68.一件风衣,按成本价提高50%后标价,后因季节关系按标价的8折出售,每件卖180元,这件风衣的成本价是()A.150元B.80元C.100元D.120元9.按下面的程序计算:若输入x=100,输出结果是501,若输入x=25,输出结果是631,若开始输入的x值为正整数,最后输出的结果为556,则开始输入的x值可能有()A.1种B.2种C.3种D.4种10.一轮船往返A、B两港之间,逆水航行需要3小时,顺水航行需2小时,水速是3千米每小时,则轮船在静水中的速度是()A.18千米∕小时B.15千米∕小时C.12千米∕小时D.20千米∕小时二.填空题(每小题3分,共18分)11.关于x的方程(a2﹣4)x2+ax+2x﹣1=0是一元一次方程,则a= .12.已知3是关于x的方程2x﹣a=1的解,则a的值是.13.一商店在某一时间以每件a元的价格卖出两件衣服,其中一件盈利25%,另一件亏损25%,若卖出这两件衣服商店共亏损8元,则a的值为.14.小华同学在解方程5x﹣1=()x+3时,把“()”处的数字看成了它的相反数,解得x=2,则该方程的正确解应为x= .15.若x=2是关于x的方程2x+3m﹣1=0的解,则m的值为.16.小明解方程=﹣3去分母时,方程右边的﹣3忘记乘6,因而求出的解为x=2,则原方程正确的解为.17.如图,小红将一个正方形纸片剪去一个宽为4cm的长条后,再从剩下的长方形纸片上剪去一个宽为5cm的长条,且剪下的两个长条的面积相等.问这个正方形的边长应为多少厘米?设正方形边长为xcm,则可列方程为.18.在数轴上,点A(表示整数a)在原点O的左侧,点B(表示整数b)在原点O的右侧,若a与b差的绝对值等于,且AO=2BO,则a+b的值为.三.解答题(共6小题,共46分)19.(8分)解方程(1)3x﹣7(x﹣1)=3﹣2(x+3)(2)=﹣120.(7分)元旦,某校初一年级(1)班组织学生去公园游玩.该班有50名同学组织了划船活动(划船须知如图).他们一共租了10条船,并且每条船都坐满了人,那么大船租了几只?21.(7分)(1)已知3m+7与﹣10互为相反数,求m的值.(2)若|a|=2,b=﹣3,c是最大的负整数,求a+b﹣c的值.22.(8分)为弘扬中华优秀文化传统,某中学在元旦前夕,由校团委组织全校学生开展一次书法比赛,为了表彰在书法比赛中优秀学生,计划购买钢笔30支,毛笔20支,共需1070元,其中每支毛笔比钢笔贵6元.(1)求钢笔和毛笔的单价各为多少元?(2)①后来校团委决定调整设奖方案,扩大表彰面,需要购买上面的两种笔共60支(每种笔的单价不变).张老师做完预算后,向财务处王老师说:“我这次买这两种笔需支领1322元.”王老师算了一下,说:“如果你用这些钱只买这两种笔,那么帐肯定算错了.”请你用学过的方程知识解释王老师为什么说他用这些钱只买这两种笔的帐算错了.②张老师突然想起,所做的预算中还包括校长让他买的一支签字笔.如果签字笔的单价为不大于10元的整数,请通过计算,直接写出签字笔的单价可能为元.23.(7分)出租车司机小王某天下午营运的路线全是在东西走向的大道上,出发点A恰好在这条大道上,如果规定向东为正,向西为负,他这天下午的行驶记录如下:(单位:千米)+5,﹣3,﹣8,﹣6,+10,﹣6,12,﹣10(1)将最后一名乘客送到目的地时,小王在出发点A地的东面还是西面?距下午出车地A点的距离是多少千米?(2)若汽车耗油量为a升/千米,这天下午汽车共耗油多少升?(用含a的代数式表示)(3)出租车油箱内原有10升油,请问:当a=0.3时,小王途中是否需要加油?若需要加油,至少需要加多少升油?若不需要,说明理由.24.(9分)如图:在数轴上A点表示数a,B点示数b,C点表示数c,b是最小的正整数,且a,b满足|a+2|+(c﹣7)2=0.(1)a= ,b= ,c= .(2)点A,B,C开始在数轴上运动,若点A以每秒1个单位长度的速度向左运动,同时,点B和点C分别以每秒2个单位长度和4个单位长度的速度向右运动,假设t秒钟过后,若点A与点B之间的距离表示为AB,点A与点C 之间的距离表示为AC,点B与点C之间的距离表示为BC.则AB= ,AC= ,BC= .(用含t的代数式表示)(3)请问:3BC﹣2AB的值是否随着时间t的变化而改变?若变化,请说明理由;若不变,请求其值.参考答案一.选择题1.解:由一元一次方程的特点得m﹣2=1,即m=3,则这个方程是3x=0,解得:x=0.故选:A.2.解:把x=﹣2代入+1=x得:+1=﹣2,解这个方程得:□=5.故选:B.3.解:把代入原方程,得:,解得:a=﹣1,故选:A.4.解:A、此方程为一元二次方程,不合题意;B、此方程为二元一次方程,不合题意;C、此方程为一元一次方程,符合题意;D、此方程不是整式方程,为分式方程,不合题意,故选:C.5.解:设x周后树苗长高到1m,由题意得:40+5x=100,故选:D.6.解:设一个球体重x,圆柱重y,正方体重z.根据等量关系列方程2x=5y;2z=3y,消去y可得:x=z,则3x=5z,即三个球体的重量等于五个正方体的重量.故选:D.7.解:当a2+2a=3时原式=2(a2+2a)﹣3=6﹣3=3故选:C.8.解:设这件风衣的成本价为x元,x×(1+50%)×80%=180,1.2x=180解得x=150,故选:A.9.解:∵输出的结果为556,∴5x+1=556,解得x=111;而111<500,当5x+1等于111时最后输出的结果为556,即5x+1=111,解得x=22;当5x+1=22时最后输出的结果为556,即5x+1=22,解得x=4.2(不合题意舍去),所以开始输入的x值可能为22或111.故选:B.10.解:设轮船在静水中的速度是x千米/小时,根据题意得:3(x﹣3)=2(x+3),解得:x=15.答:轮船在静水中的速度是15千米/小时.故选:B.二.填空题(共8小题)11.解:∵关于x的方程(a2﹣4)x2+ax+2x﹣1=0是一元一次方程,∴a2﹣4=0,且a+2≠0,解得:a=2,故答案为:212.解:由题意将x=3代入方程得:6﹣a=1,解得:a=5.故答案为:513.解:设第一件衣服的进价为x,依题意得:x(1+25%)=a,设第二件衣服的进价为y,依题意得:y(1﹣25%)=a,因为卖出这两件衣服商店共亏损8元,可得:,解得:a=60,故答案为:60.14.解:设()处的数字为a,根据题意,把x=2代入方程得:10﹣1=﹣a×2+3,解得:a=﹣3,∴“()”处的数字是﹣3,即:5x﹣1=﹣3x+3,解得:x=.故该方程的正确解应为x=.故答案为:.15.解:把x=2代入方程得:4+3m﹣1=0,解得:m=﹣1,故答案为:﹣116.解:根据小明的错误解法得:4x﹣2=3x+3a﹣3,把x=2代入得:6=3a+3,解得:a=1,正确方程为:=﹣3,去分母得:4x﹣2=3x+3﹣18,解得:x=﹣13,故答案为:x=﹣1317.解:设正方形边长为xcm,由题意得:4x=5(x﹣4),故答案为:4x=5(x﹣4).18.解:由题意可得:|a﹣b|=,|a|=2b,∵点A(表示整数a)在原点O的左侧,点B(表示整数b)在原点O的右侧,∴﹣a=2b,﹣a+b=,解得:b=671,a=﹣1342,故a+b=﹣671.故答案为:﹣671.三.解答题(共7小题)19.解:(1)去括号得:3x﹣7x+7=3﹣2x﹣6,移项合并得:﹣2x=﹣10,解得:x=5;(2)去分母得:3﹣3x=8x﹣2﹣6,移项合并得:﹣11x=﹣11,解得:x=1.20.解:设大船租了x只,则小船租了(10﹣x)只,依题意有:6x+4(10﹣x)=50,解得x=5,答:大船租了5只.21.解:(1)根据题意得3m+7﹣10=0,解得m=1;(2)根据题意得a=2或a=﹣2,c=﹣1,当a=2,b=﹣3,c=﹣1,a+b﹣c=2﹣3﹣(﹣1)=0;当a=﹣2,b=﹣3,c=﹣1,a+b﹣c=﹣2﹣3﹣(﹣1)=﹣4.22.解:(1)设钢笔的单价为x元,则毛笔的单价为(x+6)元,由题意得:30x+20(x+6)=1070,解得:x=19,则x+6=25,答:钢笔的单价为19元,毛笔的单价为25元;(2)①设单价为19元的钢笔y支,则单价为25元的毛笔为(60﹣y)支,根据题意得:19y+25(60﹣y)=1322,解得:y=,不合题意,即张老师肯定搞错了;②设单价为19元的钢笔z支,签字笔的单价为a元,根据题意得:19z+25(60﹣z)=1322﹣a,即6z=178+a,由a,z都是整数,且178+a应被6整除,经验算当a=2时,6z=180,即z=30,符合题意;当a=8时,6z=186,即z=31,符合题意,则签字笔的单价为2元或8元.故答案为:2或8.23.解:(1)(+5)+(﹣3)+(﹣8)+(﹣6)+(+10)+(﹣6)+12+(﹣10)=﹣6,∵规定向东为正,向西为负,答:小王在出发点A地的西面,距下午出车地A点的距离是6千米;(2)(5+|﹣3|+|﹣8|+|﹣6|+10+|﹣6|+12+|﹣10|)×a=60a(升),答:这天下午汽车共耗油60a升;(3)当a=0.3时,60a=60×0.3=18,18﹣10=8,答:小王途中还需要加油,至少需要加8升油.24.解:(1)∵|a+2|+(c﹣7)2=0,∴a+2=0,c﹣7=0,解得a=﹣2,c=7,∵b是最小的正整数,∴b=1;故答案为:﹣2,1,7.(2)AB=t+2t+3=3t+3,AC=t+4t+9=5t+9,BC=2t+6;故答案为:3t+3,5t+9,2t+6.(3)不变.3BC﹣2AB=3(2t+6)﹣2(3t+3)=6t+18﹣6t﹣6=12不变,始终为12.。
人教版七年级上册地理期末复习测试卷(word版,含答案)

人教版七年级上册地理期末复习测试卷注意事项:总分100分,考试时间60分钟。
一、选择题(本大题共15小题,每小题3分,共45分。
在每小题列出的四个选项中,只有一项是符合题目要求的。
请把正确选项的代号填在题后括号内)“超级月亮”是月亮位于近地点时刚好出现的满月或者新月,从视觉的角度,人们会觉得它“又大又圆”。
2020年 4月8日,“超级月亮”再一次出现在夜空中,它被称为“年度最大满月”。
读图,完成1~3题。
1.“年度最大满月”出现的这一天,地球位于公转轨道的()A.①~②B.②~③C.③~④D.④~①2.“年度最大满月”出现的这一天,北京正值()A.春季B.夏季C.秋季D.冬季3.这一天,北京的昼夜长短情况是()读图,完成4~6题。
4.由图可得,该地的地形主要是()A.山地B.丘陵C.高原D.平原5.下列关于图中山体部位的判断,正确的是()A.甲地是盆地B.乙地是陡崖C.丙地是山脊D.丁地是山峰6.根据图中植被推测,该地的气候类型可能是()A.温带大陆性气候B.热带雨林气候C.亚热带季风气候D.热带沙漠气候2020年3月3日,印度尼西亚中爪哇省的默拉皮火山喷发。
读世界六大板块分布示意图,完成7~8题。
7.根据板块构造学说,下列说法正确的是()A.一些裂谷是板块之间碰撞挤压形成的B.板块之间碰撞挤压可以形成新的海洋C.高大山脉是因板块分离而形成的D.一些山脉是板块之间碰撞挤压形成的8.印度尼西亚是世界上火山最多的国家之一,有“火山国”之称,因为()①位于板块内部,地壳比较稳定②位于三大板块的交界地带,地壳活跃③位于地中海—喜马拉雅火山地震带上④位于环太平洋火山地震带上A.①③B.②④C.③④D. ①④2020年12月13日上午10时,我国在侵华日军南京大屠杀遇难同胞纪念馆集会广场举行国家公祭仪式。
读南京位置图(图甲)和气温曲线与降水量柱状图(图乙),完成9~10题。
图甲图乙9.当天,南京的天气为阴。
初一数学期末复习组卷组卷2

初一数学上期中组卷一.选择题(共18小题)5.如图,已知等边三角形ABC的边长为1,按图中所示的规律,用2018个这样的三角形镶嵌而成的四边形的周长是()A.2018B.2019C.2020D.20216.如图,将一些形状相同的小五角星按图中所规放,据此规律,第10个图形有()个五角星.A.120B.121C.99D.1007.下列图形都是由同样大小的黑色三角形按一定规律所组成的,其中第①个图形中一共有4个黑色三角形,第②个图形中一共有8个黑色三角形,第③个图形中一共有13个黑色三角形,…,按此规律排列下去,第⑧个图形中黑色三角形的个数是()A.33B.34C.43D.538.如图,每一个图形都是由一些黑点按一定的规律排列而成的,其中第①个图形中有3个黑点,第②个图形中有14个黑点,第③个图形中有33个黑点……,按此规律则第⑥个图中黑点的个数是()A.135B.136C.137D.13816.已知|a|=3,|b|=2,且a•b<0,则a+b的值为()A.5或﹣5B.1或﹣1C.3或﹣2D.5或117.如果|x|=|y|=2,xy<0,那么x+y的值是()A.5或﹣5B.1或﹣1C.5或1D.018.一个数是8,另一个数比8的相反数小﹣2,这两个数的和是()A.﹣2B.14C.+2D.18二.解答题(共21小题)23.解答题(1)已知A=5x2+4x﹣1,B=﹣x2﹣3x+3,C=8﹣7x﹣6x2,求A﹣B+C的值.(2)已知﹣2x m y与3x3y n是同类项,求m﹣(m2n+3m﹣4n)+(2nm2﹣3n)的值.(3)已知A=by2﹣ay﹣1,B=2y2+3ay﹣10y﹣1,且多项式2A﹣B的值与字母y的取值无关,求(2a2b+2ab2)﹣[2(a2b﹣1)+3ab2+2]的值.24.化简求值:(1)当a=﹣1,b=2时,求代数式﹣2(ab﹣3b2)﹣[6b2﹣(ab﹣a2)]的值(2)先化简,再求值:4xy﹣2(x2﹣3xy+2y2)+3(x2﹣2xy),当(x﹣3)2+|y+1|=0,求式子的值(3)若(2mx2﹣x+3)﹣(3x2﹣x﹣4)的结果与x的取值无关,求m的值27.如图,在数轴上点A,点B,点C表示的数分别为﹣2,1,6.(1)线段AB的长度为个单位长度,线段AC的长度为个单位长度.(2)点P是数轴上的一个动点,从A点出发,以每秒1个单位长度的速度,沿数轴的正方向运动,运动时间为t秒(0≤t≤8).用含t的代数式表示:线段BP的长为个单位长度,点P在数轴上表示的数为;(3)点M,点N都是数轴上的动点,点M从点A出发以每秒4个单位长度的速度运动,点N从点C出发以每秒3个单位长度的速度运动.设点M,N同时出发,运动时间为x秒.点M,N相向运动,当点M,N两点间的距离为13个单位长度时,求x的值,并直接写出此时点M在数轴上表示的数.28.如图,数轴原点为O,A、B是数轴上的两点,点A对应的数是1,点B对应的数是﹣4,动点P、Q同时从A、B出发,分别以1个单位/秒和3个单位/秒的速度沿着数轴正方向运动,设运动时间为t秒(t>0).(1)AB两点间的距离是;动点P对应的数是(用含t的代数式表示);动点Q对应的数是(用含t的代数式表示).(2)几秒后,点O恰好为线段PQ中点?(3)几秒后,恰好有OQ=2PO?29.如图,数轴原点为O,A、B是数轴上的两点,点A对应的数是1,点B对应的数是﹣4,动点P、Q同时从A、B出发,分别以1个单位/秒和3个单位/秒的速度沿着数轴正方向运动,设运动时间为t秒(t>0).(1)AB两点间的距离是;动点P对应的数是;(用含t的代数式表示)动点Q对应的数是;(用含t的代数式表示)(2)几秒后,点O恰好为线段PQ中点?(3)几秒后,恰好有OP:OQ=1:2?30.一个点在数轴上移动时,这个点所表示的数也会发生变化.(1)如果点A从原点开始,向右移动3个单位长度,那么这时的点A对应的数是多少?(2)如果点B从原点开始,先向右移动3个单位长度,再向左移动5个单位长度,那么这时的点B对应的数是多少?31.阅读材料:如图1所示,点A、B在数轴上分别表示有理数a,b,A、B两点之间的距离表示为AB,在数轴上A、B两点之间的距离AB=|a﹣b|.例如:|5﹣(﹣2)|表示5与﹣2之差的绝对值,实际上也可理解为5与﹣2两数在数轴上所对应的两点之间的距离.(1)如图2所示,一个点从数轴上的原点开始,先向右移动3个单位长度,再向左移动5个单位长度,可以看到终点表示的数是﹣2,利用数形结合思想,请参照下图并思考,完成下列各题:①数轴上表示2与﹣5的两点之间的距离是个单位长度.②若数轴上的点A表示的数为x,点B表示的数为﹣1,则A与B两点的距离可以表示为;若|x+1|=3,则x为.③如果点A表示数﹣1,将A点向右移动18个单位长度,再向左移动13个单位长度终点为B,那么A,B两点间的距离是.(2)若数轴上的点A表示的数为x且x为整数,则当x为时,|x+5|与|x﹣7|的值相等.32.是否存在满足下面条件的数,存在的话,把它们写出来:(1)最小的正有理数:(2)最小的负整数:(3)最大的非整数:(4)最小的整数:(5)最大的负有理数:(6)最小的有理数:33.列式计算:(1)的相反数与的绝对值的差.(2)某市一天上午的气温是10℃,下午上升2℃,半夜又下降15℃,问半夜的气温是多少?34.列式计算.(1)求2的相反数与﹣1的绝对值的和.(2)已知﹣11与一个数的差为11,求这个数.35.画出数轴,且在数轴上表示出下列各数4,﹣,0,﹣4,2.5,﹣1,并解答下列各题(1)用“>”号把这些数连接起来;(2)求2.5的相反数与﹣的倒数的积;(3)求这些数的绝对值的和.36.解答下列各题:(1)试用“<”“=”“>”填空:①|+6|+|+5| |(+6)+(+5)|;②|+6|+|﹣5| |(+6)+(﹣5)|;③|0|+|﹣5| |0+(﹣5)|;④|0|+|+5| |0+(+5)|;(2)根据(1)的结果,请你总结任意两个有理数a、b的绝对值的和与它们的和的绝对值的大小关系为:|a|+|b| |a+b|;(3)请问:当a、b满足什么条件时?|a|+|b|=|a+b|.37.操作探究:图1a是一个长为2m、宽为2n的长方形,沿图中虚线用剪刀均分成四块小长方形,然后按图1b的形状拼成一个正方形.(1)你认为图1b中的阴影部分的正方形的边长等于多少?(2)请用两种不同的方法求图1b中阴影部分的面积.方法1:;方法2:;(3)观察图1b你能写出下列三个代数式之间的等量关系吗?代数式:(m+n)2,(m﹣n)2,mn.;(4)根据(3)题中的等量关系,解决如下问题:若a+b=7,ab=5,求(a﹣b)2的值.(5)已知:如图2,现有的a×a,b×b正方形和a×b的矩形纸片若干块,试选用这些纸片(每种至少用一次)在如图3的虚线方框中拼成一个矩形(每两个纸片之间既不重叠,也无空隙,作出的图中必须保留拼图的痕迹),使拼出的矩形面积为2a2+5ab+2b2,并标出此矩形的长和宽.38.观察下面的变形规律(阅读材料):①=1﹣,=﹣,=﹣,…,②,,,…;….解答下面的问题:(1)若n为正整数,请你猜想=;(2)受(1)小问启发,请你解方程:+=2;(3)若n为正整数,请你猜想=.39.观察下面的变形规律:;;;…解答下面的问题:(1)若n为正整数,请你猜想=;(2)根据规律计算:的值.三.填空题(共1小题)40.在数轴上,表示﹣1与3的两点之间的距离为;大于﹣2且小于4的整数是;与原点距离小于3个单位长度的整数有;比﹣4大的负整数有;最小的正整数是;最大的负整数是;最小的自然数是;大于﹣3的负整数有;不大于2的非负整数.。
人教版-学年度上学期七年级数学期末复习试卷三 一元一次方程(含答案)

2018-2019七上期末复习试题三学生版第三章一元一次方程检测卷(时间:120分钟满分:120分)一、选择题(每小题3分,共30分)1.如果方程(m-1)x+3=0是关于x 的一元一次方程,那么m 的取值范围( ) A.m ≠0 B.m ≠1 C.m = - 1 D. m>1 2.以下等式变形不正确的是( )A.由x+2=y+2,得到x=yB.由2a-3=6-3,得到2a=bC.由am=an,得到m=nD.由m=n ,得到2am=2an 3.下列判断错误的是( )A.若a=b ,则a-3=b-3B.若a=b,则20192019ba -=- C.若ax=bx ,则a=b D.若x=2018,则x x 20182=4.若关于x 的方程x m -1+2m +1=0是一元一次方程,则这个方程的解是( ) A .x =-5 B .x =-3 C .x =-1 D .x =5 5.在3×3方格上做填数字游戏,要求第行、每列及每条对角线上的三个格子中的数字之和都等于s ,且填在三个格子中的数字如图所示,若要能填成,则( )A .s =24B .s =30C .s =31D .s =396.解方程3x +312-x =3-21+x ,去分母正确的是( ) A .18x +2(2x -1)=18-3(x +1) B .3x +(2x -1)=3-(x +1)C .18x +(2x -1)=18-(x +1)D .3x +2(2x -1)=3-3(x +1)7.用一根长为(单位:cm )的铁丝,首尾相接围成一个正方形.要将它按图7的方式向外等距扩1(单位:cm ),得到新的正方形,则这根铁丝需增加( ).A.4cmB.8cmC.( +4) cmD. (+8) cm8.如果,长方形ABCD 中有6个形状、大小相同的小长方形,且EF =3,CD =12.则图中阴影部分的面积为( )A .108B .72C .60D .489.某市举行歌手大奖赛,今年共有a 人参加,比赛的人数比去年增加20%还多3人,则去年参赛的有( )人.A. B. (1+20%)a+3 C. D.(1+20%)a-310.某文具店一支铅笔的售价为1.2元,一支圆珠笔的售价为2元.该店在“6·1”儿童节举行文具优惠售卖活动,铅笔按原价打8折出售,圆珠笔按原价打9折出售,结果两种笔共卖出60支,卖得金额87元.若设铅笔卖出x支,则依题意可列得的一元一次方程为( )A.1.2×0.8x+2×0.9(60+x) =87B.1.2×0.8x+2×0.9(60-x) =87C.2×0. 9x+l.2×0.8(60+x) =87D.2×0.9x+l.2×0.8(60-x) =87二、填空题(每小题3分,共15分)11.若方程(a-3)x|a|-2-7=0是一个一元一次方程,则a= .12.已知关于x的方程2x+a-5=0的解是x=2,则a的值为.13.某商场有一款春季大衣,如果打八折出售,每件可盈利200元,如果打七折出售,每件还可以盈利50元,那么这款大衣每件的标价是.14.关于x的方程=1-的解是整数,则整数m= .15. 一组“数值转换机”按下面的程序计算,如果输入的数是36,则输出的结果为106,要使输出的结果为127,则输入的最小正整数是.三、解答题(共75分)16.(6分)解下列方程;(1))20-y=6y-4(y-11);(2)=1+;17.(6分)当k为何整数时,关于x的方程2kx-4=x+5的解是整数?18.(7分)关于x的方程-2=a与方程8x-2(3x+2)=-5的解互为倒数,求a的值.19.(7分)某班去看演出,甲种票每张24元,乙种票每张18元.如果35名学生购票恰好用去750元,甲、乙两种票各买了多少张?20.(8分攀枝花市出租车的收费标准是:起步价5元(即行驶距离不超过2千米都需付5元车费),超过2千米以后,每增加1千米,加收1.8元(不足1千米按1千米计).某同学从家乘出租车到学校,付了24.8元.求该同学的家到学校的距离在什么范围?思路分析:先列一元一次方程求出付费24.8元时可行驶的最大距离,再根据题意和所得结果求出付费24.8元时的距离范围.21.(8分)为迎接“七·一”党的生日,某校准备组织师生共310人参加一次大型公益活动,租用4辆大客车和6辆小客车恰好全部坐满,已知每辆大客车的座位数比小客车多15个。
期末检测卷03(解析版) -2020-2021学年七年级数学上册期末综合复习专题提优训练(北师大版)

2020-2021学年七年级数学上册期末综合复习专题提优训练(北师大版)期末检测卷03一、选择题(本题共计6小题,每题3分,共计18分)1.(2020·义马市教学研究室七年级期中)某粮店出售的三种品牌的面粉袋上,分别标有质量为(25±0.1)kg ,(25±0.2)kg ,(25±0.3)kg 的字样,从中任意拿出两袋,它们的质量最多相差( )A .0.8kgB .0.6kgC .0.5kgD .0.4kg【答案】B2.(2020·鹿邑县基础教育研究室七年级期末)下列调查中,适合采用全面调查的是( )A .对中学生目前睡眠质量的调查B .开学初,对进入我校人员体温的测量C .对我市中学生每天阅读时间的调查D .对我市中学生在家学习网课情况的调查【答案】B3.(2020·深圳市福田区石厦学校七年级期中)下列计算中,正确的是( ).A .6410a b ab +=B .2242734x y x y x y -=C .22770a b ba -= D .2248816x x x +=【答案】C 4.(2020·西安市·陕西师大附中七年级期中)病毒无情人有情,2020年初很多最美逆行者不顾自己安危奔赴疫情前线,我们内心因他们而充满希望.小茜同学在一个正方体每个面上分别写一个汉字,组成“全力抗击疫情”.如图是该正方体的一种展开图,那么在原正方体上,与汉字“击”相对的面上所写汉字为( )A .共B .同C .疫D .情5.(2020·兴化市板桥初级中学七年级月考)如图,∠AOB =180°,OD 是∠BOC 的平分线,OE 是∠AOC 的平分线,则下列各角中与∠COD 互补的是( )A .∠COEB .∠AOC C .∠AOD D .∠BOD【答案】C6.(2020·兴化市安丰初级中学七年级月考)已知a ,b ,c ,d 为有理数,现规定一种新的运算a b ad bc c d =-,那么当()241815x x=-时,则x 的值是( ) A .1x = B .711x = C .117x = D .1x =-【答案】C二、填空题(本题共计6小题,每题3分,共计18分)7.(2020·山西运城市·七年级期中)计算:()()37---=______【答案】48.(2020·山东省青岛第五十九中学七年级期中)截止到2020年10月25,全球新冠已经突破4400万人,用科学记数法表示为__________人.【答案】74.410⨯9.(2020·重庆潼南区·七年级月考)若单项式3m a b +与522n a b +-的和仍是单项式,则m n =______.10.(2020·天津市滨海新区大港第二中学七年级期中)已知C 是线段AB 的中点,AB =10,若E 是直线AB 上的一点,且BE =3,则CE =_____【答案】2或811.(2020·杭州市保俶塔实验学校七年级月考)方程()4310x -+=的解与关于x 的方程3222x k k x +--=的解相同,则k =__________. 【答案】-112.(2020·深圳市福田区石厦学校七年级期中)观察下列图形,它是把一个三角形分别连接这个三角形三边的中点,构成4个小三角形,挖去中间的一个小三角形(如图1);对剩下的三个小三角形再分别重复以上做法,…将这种做法继续下去(如图2,图3…),则图6中挖去三角形的个数为______.【答案】364三、(本题共计5小题,每小题6分,共计30分)13.(2020·重庆潼南区·七年级月考)计算(1)342.4( 3.1)55⎛⎫--+-+ ⎪⎝⎭(2)2020211(10.5)(4)2⎛⎫-+-⨯-÷- ⎪⎝⎭ 【答案】解:(1)原式=342.4 3.10.7 1.40.755+-+=-+=;(2)原式=()2111(4)214212124⎛⎫-+⨯-⨯-=-+⨯⨯=-+= ⎪⎝⎭. 【点睛】 本题考查了有理数的混合运算,属于基础题目,熟练掌握混合运算的法则是解题的关键.14.(2020·重庆潼南区·七年级月考)解方程(1)23(1)1x x --= (2)11125x x +--= 【答案】解:(1)去括号,得2331x x -+=,移项,得2313x x -=-,合并同类项,得2x -=-,系数化为1,得2x =;(2)去分母,得()()512110x x +--=,去括号,得552210x x +-+=,移项,得521052x x -=--,合并同类项,得33x =,系数化为1,得1x =.【点睛】本题考查了一元一次方程的解法,属于基础题目,熟练掌握解一元一次方程的方法和步骤是解题的关键.15.(2020·施秉县第三中学七年级月考)先化简,再求值:()22221623212ab a ab b a ab b ⎡⎤⎛⎫-+---+- ⎪⎢⎥⎝⎭⎣⎦,其中1a =-,12b =.【答案】解:原式()22226223631ab a ab b a ab b =-+--+--()226841ab a ab b =--+--226841ab a ab b =+-++22241a ab b =-++, 把1a =-,12b =,代入原式()()2211121*********⎛⎫=--⨯-⨯+⨯+=+++= ⎪⎝⎭. 【点睛】 本题考查整式的化简求值,解题的关键是掌握整式的加减运算法则.16.(2020·邢台市开元中学七年级月考)出租车司机李师傅某天下午从停车场出发一直沿东西方向的大街进行营运,规定向东为正,向西为负,他行驶里程(单位:km )记录如下:11+,5-,3+,10+,11-,5+,15-,8-. (1)当把最后一名乘客送达目的地时,李师傅在停车场的什么位置?(2)若每千米为盈利1.5元,则这天下午他盈利多少元?【答案】(1)()()()()()()()()531111518051+++++-++-+++-+-,115310115158=-++-+--,10=-(千米), 答:李师傅最后在停车场的西边10千米处;(2)115311515810++-++++-+++-+-+,115310115158=+++++++,68=(千米),⨯=(元),则68 1.5102答:这天下午他盈利102元.【点睛】本题考查了正负数在实际生活中的应用、绝对值的应用、有理数乘法与加减法的应用,依据题意,正确列出各运算式子是解题关键.17.(2020·福建三明市·七年级期中)用棋子按规律摆出下列一组图形:(1)填写下表:(2)照这样的方式摆下去,则第n个图形中棋子的枚数是______;(3)照这样的方式摆下去,则第100个图形中棋子的枚数是______.【答案】解:(1)第1个图形棋子数:5=3⨯1+2;第2图形棋子数:8=3⨯2+2;第3图形棋子数:11=3⨯3+2;第4图形棋子数:14=3⨯4+2;第5图形棋子数:17=3⨯5+2;∴表如下:(2)由(1)知,第n 个图形中棋子的枚数是32n +.(3)当100n =时,3231002302n +=⨯+=,∴第100个图形中棋子的枚数是302.【点睛】本题考查了图形的变化规律,关键是找到规律,列出式子.四、(本题共计3小题,每小题8分,共计24分)18.(2020·靖江市靖城中学七年级月考)有理数a ,b ,c 在数轴上的位置如图所示,(1)c 0; a +c 0;b ﹣a 0 (用<、>、=填空)(2)试化简:|b ﹣a |﹣|a +c |+|c |.【答案】(1)由题意,得c <a <0<b ,则c <0; a +c <0;b −a >0;故答案为<;<;>;(2)原式=(b -a )-(-a -c )+(-c )=b −a +a +c −c =b .【点睛】本题考查了绝对值:若a >0,则|a |=a ;若a =0,则|a |=0;若a <0,则|a |=−a .也考查了数轴与整式的加减. 19.(2020·成都市武侯区领川外国语学校七年级期中)若代数式22261x ax bx x ++-+-的值与字母x 的取值无关,又2222A a ab b =-+-,2233B a ab b =-+.(1)求,a b 的值;(2)求:()()32A B A B +-+的值;(3),,A B C 三点在同一直线上,M 是线段AC 的中点,N 是线段BC 的中点,若AC a b cm =-,BC a b cm =+,求MN 的长.【答案】(1)原式()()2215b x a x =-+++,∵该代数式的值与字母x 的取值无关,∵20,10b a -=+=,解得2,1b a ==-;(2)()()32322A B A B A B A B B A +-+=+--=-,∵原式B A =-,∵222222,33A a ab b B a ab b =-+-=-+,∵原式()()22223322a ab b a ab b =-+--+-22223322a ab b a ab b =-++-+22525a ab b =-+将1,2a b =-=代入得:原式()()225121252=⨯--⨯-⨯+⨯,5420=++29=(3)将1,2a b =-=代入得:123,121AC cm BC cm =--==-+=,如图1所示:∵M 是线段AC 的中点, ∵1133222MC AC cm ==⨯=,∵N 是线段BC 的中点, ∵1111222CN CB cm ==⨯=,∵MN MC CN =+, ∵31222MN cm =+=,如图2所示:∵M 是线段AC 的中点, ∵1133222MC AC cm ==⨯=,∵N 是线段BC 的中点,∵1111222CN CB cm ==⨯=,∵MN MC CN=-,∵31122MN cm=-=,综上,MN的值为2cm或1cm.【点睛】本题考查了整式的加减-化简求值、绝对值、线段之间的数量关系、有理数的混合运算,熟练掌握运算法则和运算顺序,灵活运用数形结合和分类讨论的思想方法是解答的关键.20.(2020·长沙市长郡外国语实验中学八年级月考)“中秋”是我国的传统佳节,历来有吃“月饼”的习俗.我市网红“巢娘驰”食品厂为了解长沙市民对销量较好的莲蓉馅、豆沙馅、五仁馅、蛋黄馅(以下分别用A、B、C、D表示)这四种不同口味月饼的喜爱情况,在节前对我市某小区市民进行了抽样调查,并将调查情况绘制成如图两幅统计图(不完整).请根据以上信息回答:(1)将两幅不完整的图补充完整;(2)本次参加抽样调查的居民有多少人?(3)若居民区有20000人,请估计爱吃蛋黄馅月饼的人数.【答案】解:(1)本次参加抽样调查的居民人数是:60÷10%=600(人);A组所对应的百分比是(180÷600)×100%=30%,C组的人数是600﹣180﹣60﹣240=120(人),C组所占的百分比是(120÷600)×100%=20%,补全统计图如下:(2)本次参加抽样调查的居民有60÷10%=600(人),故答案为:600人;(3)根据题意得:爱吃蛋黄馅月饼的人数占总人数的40%,即:20000×40%=8000(人),答:爱吃蛋黄馅月饼的人数有8000人.【点睛】本题考查了条形统计图和扇形统计图等相关知识点,两个图结合一起看,扇形统计图中各部分表示占总体的百分比,本题考查了数形结合的思想.五、(本题共计2小题,每小题9分,共计18分)21.(2020·道真自治县隆兴中学七年级月考)某城市为增强人们节约用水的意识,规定每吨生活用水的基本价格为2元,每月每户限定用水6吨,超出部分在基本价格的基础上增加80%,已知某户居民这月用水量为a吨(该户居民用水量已超过规定).(1)这户居民该月应缴水费多少元(用含有a的代数式表示)?a 时,计算(1)的结论中代数式的值.(2)当8(3)若这户居民该月缴水费26.4元,则这户居民这月用水多少吨?【答案】解:(1)该户居民次月应交的水费为:()()()()26180%2612 3.66 3.69.6a a a ⨯++⨯⨯-=+-=-元.所以该户居民该月应交水费为()3.69.6a -元.(2)当8a =时,3.69.6 3.689.628.89.619.2a -=⨯-=-=元.(3)设这户居民次月用水x 吨,根据题意得:()()26180%2626.4x ⨯++⨯⨯-=整理得:3.69.626.4x -=解得10x =所以这户居民这月用水10吨.【点睛】本题考察一元一次方程的实际应用,正确判断属于哪种情况是解题的关键.22.(2020·宜兴外国语学校七年级月考)如图,数轴上有A 、B 、C 、D 、O 五个点,点O 为原点,点C 在数轴上表示的数是5,线段CD 的长度为6个单位,线段AB 的长度为2个单位,且B 、C 两点之间的距离为13个单位,请解答下列问题:(1)点D 在数轴上表示的数是___,点A 在数轴上表示的数是___;(2)若点B 以每秒2个单位的速度向右匀速运动t 秒运动到线段CD 上,且BC 的长度是3个单位,根据题意列出的方程是______________,解得t =___;(3)若线段AB 、CD 同时从原来的位置出发,线段AB 以每秒2个单位的速度向右匀速运动,线段CD 以每秒3个单位的速度向左匀速运动,把线段CD的中点记作P,求出点P与线段AB的一个端点的距离为2个单位时运动的时间.【答案】(1)∵点C在数轴上表示的数是5,CD=6,AB=2,BC=13,∴点D在数轴上表示的数是11,点B在数轴上表示的数是﹣8,点A在数轴上表示的数是﹣10;(2)B运动到CD上时,走过的路程为2t,减去BC的距离即为此时BC的长度,故:2t-13=3,解得:t=8;(3)由题意得,线段CD的中点P的位置为8,分三种情况讨论:①当点P在点B右侧2个单位时,16﹣2t﹣3t=2,解得:t=2.8;②当点P在点B左侧2个单位时,2t+3t﹣16=2,解得:t=3.6,此时P与A重合;③当点P在点A左侧2个单位时,2t+3t﹣18=2,解得:t=4;综上,当t=2.8或3.6或4时,点P与线段AB的一个端点的距离为2个单位.【点睛】本题考查了一元一次方程的应用和数轴.解题关键是要读懂题目的意思,根据题目给出的条件,找出合适的等量关系列出方程,再求解.六、(本题共计1小题,每小题12分,共计12分)23.(2020·江苏南通市·南通田家炳中学七年级月考)(阅读理解)射线OC是∠AOB内部的一条射线,若∠COA=12∠BOC,则我们称射线OC是射线OA的伴随线.例如,如图1,∠AOB=60°,∠AOC=∠COD=∠BOD=20°,则∠AOC=12∠BOC,称射线OC是射线OA的伴随线;同时,由于∠BOD=12∠AOD,称射线OD是射线OB的伴随线.(知识运用)(1)如图2,∠AOB =120°,射线OM 是射线OA 的伴随线,则∠AOM = °,若∠AOB 的度数是α,射线ON 是射线OB 的伴随线,射线OC 是∠AOB 的平分线,则∠NOC 的度数是 .(用含α的代数式表示)(2)如图3,如∠AOB =180°,射线OC 与射线OA 重合,并绕点O 以每秒3°的速度逆时针旋转,射线OD 与射线OB 重合,并绕点O 以每秒5°的速度顺时针旋转,当射线OD 与射线OA 重合时,运动停止.①是否存在某个时刻t (秒),使得∠COD 的度数是20°,若存在,求出t 的值,若不存在,请说明理由.②当t 为多少秒时,射线OC 、OD 、OA 中恰好有一条射线是其余两条射线的伴随线.【答案】解:(1)如图, 射线是OA 的伴随射线,12AOC BOC ∴∠=∠, 111204033AOC AOB ∴∠=∠=⨯︒=︒ ,同理,若∠AOB 的度数是α,射线ON 是射线OB 的伴随线,1133BON AOB α∴∠=∠= , 射线OC 是∠AOB 的平分线,1122BOC AOB α∴∠=∠= , 1123NOC BOC BON αα∴∠=∠-∠=- =16α,故答案为:40,6α︒(2)射线OD 与OA 重合时,t =1805=36(秒) ①当∠COD 的度数是20°时,有两种可能:若在相遇之前,则180﹣5t ﹣3t =20,∴t =20;若在相遇之后,则5t +3t ﹣180=20,∴t =25;所以,综上所述,当t =20秒或25秒时,∠COD 的度数是20°.②相遇之前:(i )如图1,OC是OA的伴随线时,则∠AOC=12∠COD即3t=12(180﹣5t﹣3t)∴t=90 7(ii)如图2,OC是OD的伴随线时,则∠COD=12∠AOC即180﹣5t﹣3t=123t∴t=360 19相遇之后:(iii)如图3,OD是OC的伴随线时,则∠COD=12∠AOD即5t+3t﹣180=12(180﹣5t)∴t=180 7(iv)如图4,OD是OA的伴随线时,则∠AOD=12∠COD即180﹣5t=12(3t+5t﹣180)∴t=30所以,综上所述,当t=90360180,,7197,30时,OC、OD、OA中恰好有一条射线是其余两条射线的伴随线.【点评】本题考查了角的计算,解决本题的关键是利用分类讨论思想.。
【期末复习提升卷】浙教版2022-2023学年七上数学第5章 一元一次方程 测试卷2

【期末复习提升卷】浙教版2022-2023学年七上数学第5章 一元一次方程 测试卷2考试时间:120分钟 满分:120分一、选择题(本大题有10小题,每小题3分,共30分)下面每小题给出的四个选项中,只有一个是正确的.1.运用等式性质进行的变形,正确的是( )A .如果a c =b c ,那么a =bB .如果a =b ,那么a c =b cC .如果a =b ,那么a +c =b −cD .如果a 2=3a ,那么a =32.老师在黑板上出了一道解方程的题 2x−13 =1﹣ x+24 ,小明马上举手,要求到黑板上做,他是这样做的:4(2x ﹣1)=1﹣3(x+2)①8x ﹣4=1﹣3x ﹣6②8x+3x=1﹣6+4③11x=﹣1 ④x=﹣ 111⑤ 老师说:小明解一元一次方程的一般步骤都知道却没有掌握好,因此解题时有一步出现了错误,请你指出他错在( )A .①B .②C .③D .④3.已知x=2是方程2(x ﹣3)+1=x+m 的解,则m 的值是( )A .3B .﹣3C .﹣4D .44.一学生从家去学校每小时走5千米,按原路返回时,每小时走4千米,结果返回的时间比去的时间多用10分钟,设去学校所用的时间为x 小时,则正确列出的方程是( )A .5x =4(x +1060)B .5x =4(x −1060) C .5(x −1060)=4x D .5(x +1060)=4x 5.2016年4月21日在深圳体育馆召开的第八届中国(深圳)国际茶业文化博览会上某茶商将甲、乙两种茶叶卖出,甲种茶叶卖出1200元,盈利20%,乙种茶叶卖出1200元,亏损20%,则此人在这次交易中是( )A .盈利50元B .盈利100元C .亏损150元D .亏损100元6.新华书店推出售书优惠方案:①一次性购书不超过100元,不享受优惠;②一次性购书超过100元但不超过200元一律打九折;③一次性购书200元一律打八折.如果小明同学一次性购书付款162元,那么小明所购书的原价为( )A .180元B .202.5元C .180元或202.5元D .180元或200元7.下列各对等式,是根据等式的性质进行变形的,其中错误的是( ).A .4x -1=5x+2→x=-3B .x 0.5−1.8−2x 0.7=23→10x 5−18−20x 7=230C .0.03x 2+0.05−0.1x 4=0.23→32x +5−10x 4=23 D .x+53−x−32=1→2(x +5)−3(x −3)=6 8.下列判断:①若a+b+c=0,则(a+c )2=b 2.②若a+b+c=0,且abc≠0,则 a+c 2b =−12 .③若a+b+c=0,则x=1一定是方程a x+b+c=0的解④若a+b+c=0,且abc≠0,则abc >0.其中正确的是( )A .①②③B .①③④C .②③④D .①②③④ 9.在长方形 ABCD 中,放入6个形状大小完全相同的小长方形,所标尺寸如图所示,则小长方形的宽 AE 的长度为( ) cm .A .1B .1.6C .2D .2.5 10.方程 x 3+x 15+x 35+...+x 2005×2007=1 的解是 x 等于( ) A .20062007 B .20072006 C .20071003 D .10032007二、填空题(本大题有6小题,每小题4分,共24分)要注意认真看清题目的条件和要填写的内容,尽量完整地填写答案.11.小明做作业时,不小心将方程x−22−1=4x 3+●中的一个常数污染了看不清楚,小芳告诉他该方程的解是负数,并且这个常数是负整数,该方程的解是 .12.若代数式 x 2+4x +3 可以表示为 (x −1)2+6(x −1)+a 的形式,则a= . 13.已知某铁路桥长1600米.现有一列火车从桥上通过,测得火车从开始上桥到完全过桥共用90秒,整列火车完全在桥上的时间是70秒,则这列火车长 米.14.在同一条数轴上,点B 表示的数是-8,点C 表示的数是16,若点B 以每秒6个单位长度的速度向右匀速运动,同时点C 以每秒2个单位长度的速度向左匀速运动,当运动 秒时,BC =8个单位长度.15.如图,一个盛有水的圆柱形玻璃容器的底面半径为 10cm ,容器内水的高度为 12cm ,把一根半径为 2cm 的玻璃棒垂直插入水中,水不会溢出,则容器内的水将升高 cm.16.关于x 的一元一次方程x 2022−1=2022x +m 的解为x =−2019,则关于y 的方程3−y 2022−1=2022(3−y)+m 的解为 .三、解答题(本题有8小题,第17~19题每题6分,第20、21题每题8分,第22、23题每题10分,第24题12分,共66分)解答应写出文字说明,证明过程或推演步骤.17.解方程: (1)x−33 ﹣1= 2x+42 (2)0.1x−0.20.02−x+10.5 =318.我们规定,若关于x 的一元一次方程ax =b 的解为b +a ,则称该方程为“和解方程”.例如:2x =−4的解为−2,且−2=−4+2,则该方程2x =−4是和解方程.请根据上面规定解答下列问题:(1)判断方程3x =−6是否是和解方程;(2)若关于x 的一元一次方程6x =3m −1是和解方程,求m 的值.19.一般情况下,对于数a 和b ,a 2+b 4≠a+b 2+4,但是对于某些特殊的数a 和b ,a 2+b 4=a+b 2+4.我们把这些特殊的数a 和b ,称为“理想数对”,记作⟨a ,b⟩.例如当a =1,b =−4时,有12+−44=1+(−4)2+4,那么⟨1,−4⟩就是“理想数对”.(1)⟨3,−12⟩,是不是“理想数对” ;(填“是”或“不是”)(2)如果<2,x >是“理想数对”,那么x = ;(3)若<m ,n >是“理想数对”,求12m +3n −16的值.20.某市自2015年1月1日起对居民生活用电实行阶梯电价,具体收费标准如下表:已知2022年10月份该市居民老李家用电200度,交电费120元;2022年9月份老李家交电费157元.(1)表中a 的值为 ;(2)求老李家2022年9月份的用电量;(3)若2022年8月份老李家用电的平均电价为0.7元/度,求老李家2022年8月份的用电量.21.某中学为了表彰在书法比赛中成绩突出的学生,购买了钢笔30支,毛笔45支,共用了1 755元,其中每支毛笔比钢笔贵4元.(1)钢笔和毛笔的单价各为多少元?(2)①学校仍需要购买上述的两种笔共105支(每种笔的单价不变).陈老师做完预算后,向财务处王老师说:“我这次买这两种笔需支领2 447元.”王老师算了一下,说:“如果你用这些钱只买这两种笔,那么账肯定算错了.”请你用学过的方程知识解释王老师为什么说陈老师用这些钱只买这两种笔的账算错了.②陈老师突然想起,所做的预算中还包括校长让他买的一支签字笔.如果签字笔的单价为小于10元的整数,请通过计算,求出签字笔的可能单价.22.用“*”定义一种新运算:对于任意有理数a 和b ,规定a*b=ab 2+2ab+a.如:1*3=1×32+2×1×3+1=16(1)求2*(﹣2)的值;(2)若2*x=m , (14x)∗3=n (其中x 为有理数),试比较m ,n 的大小; (3)若[ (a+12)∗(−3) ] ∗12 =a+4,求a 的值.23.对数轴上的点P 进行如下操作:先把点P 表示的数乘以m(m ≠0),再加上n ,得到其对应点P .将P 称为点P 的“倍移点”.(1)当m =−2,n =1时,①若点A 表示的数为−4,则其“倍移点”A 表示的数为 ▲ ; ②若点B 的“倍移点”B 表示的数是3,则点B 表示的数为 ▲ ; ③若点C 与其“倍移点”C 在数轴上重合,求点C 所表示的数;(2)已知点M 表示的有理数为3,其“倍移点”为点M′;原点O 的“倍移点”为点O . ①当m =3且n >0时,若线段OM 与O′M′的重叠部分长度为2,求n 的值: ②若线段OM 与O′M′的重叠部分长度为2,且n <0,直接写出m ,n 之间的数量关系.24.定义:如果两个一元一次方程的解之和为1,我们就称这两个方程为“美好方程”.例如:方程2x −1=3和x +1=0为“美好方程”.(1)请判断方程4x −(x +5)=1与方程−2y −y =3是否互为“美好方程”; (2)若关于x 的方程x 2+m =0与方程3x −2=x +4是“美好方程”,求m 的值; (3)若关于x 方程12022x −1=0与12022x +1=3x +k 是“美好方程”,求关于y 的方程12022(y +2)+1=3y +k +6的解.。
【期末复习提升卷】浙教版2022-2023学年七上数学第5章 一元一次方程 测试卷1(解析版)

【期末复习提升卷】浙教版2022-2023学年七上数学第5章 一元一次方程 测试卷1(解析版)一、选择题(本大题有10小题,每小题3分,共30分) 下面每小题给出的四个选项中,只有一个是正确的. 1.已知①x=1;②x 2﹣2x=0;③x ﹣3=5;④6﹣x ;⑤2x+y=3;⑥xy=2,其中一元一次方程有( ) A .1个 B .2个 C .3个 D .4个 【答案】B【解析】①x=1是一元一次方程; ②x 2﹣2x=0是一元二次方程; ③x ﹣3=5是一元一次方程; ④6﹣x 是多项式;⑤2x+y=3是二元一次方程; ⑥xy=2是二元二次方程, 故选:B .2.已知代数式8x ﹣7与6﹣2x 的值互为相反数,那么x 的值等于( ) A .16 B .﹣ 16 C .1310 D .﹣ 1310【答案】A【解析】根据题意得:(8x ﹣7)+(6﹣2x )=0,解得:x= 16.故答案为:A.3.下列变形正确的是( )A .若3x −1=2x +1,则3x +2x =1+1B .若3(x +1)−5(1−x)=0,则3x +3−5−5x =0C .若1−3x−12=x ,则2−3x −1=xD .若x+10.2−x 0.3=10,则x+12−x 3=1【答案】D【解析】A 、若3x -1=2x+1,则3x -2x=1+1,故A 不符合题意;B 、若3(x+1)-5(1-x )=0,则3x+3-5+5x=0,故B 不符合题意;C 、若1-3x−12=x ,则2-3x+1=2x ,故C 不符合题意;D 、若x+10.2−x 0.3=10,则x+12−x 3=1,故D 符合题意. 故答案为:D.4.已知关于x 的方程2x+4=m ﹣x 的解为负数,则m 的取值范围是( ) A .m <43 B .m >43C .m <4D .m >4【答案】C【解析】由2x+4=m ﹣x 得, x= m−43,∵方程有负数解, ∴m−43<0,解得m <4. 故选C .5.阅读:关于x 方程ax=b 在不同的条件下解的情况如下:(1)当a≠0时,有唯一解x= b a;(2)当a=0,b=0时有无数解;(3)当a=0,b≠0时无解.请你根据以上知识作答:已知关于x 的方程 x3 •a= x 2 ﹣ 16 (x ﹣6)无解,则a 的值是( ) A .1 B .﹣1 C .±1 D .a≠1 【答案】A【解析】去分母得:2ax=3x ﹣(x ﹣6),去括号得:2ax=2x+6移项,合并得,x= 3a−1,因为无解;所以a ﹣1=0,即a=1. 故选A .6.松桃县对城区主干道进行绿化,计划把某一段公路的一侧全部栽上桂花树,要求路的两端各栽一棵,并且每两棵树的间隔相等,如果每隔5米栽1棵,则树苗缺21棵;如果每隔6米栽1棵,则树苗正好用完.设这段公路的长是x 米,则根据题意列出方程正确的是( )A .x 5+1+21=x 6+1B .x 5+1−21=x 6+1C .x+15+21=x+16D .x+15−21=x+16【答案】B【解析】设这段公路的长是x 米,则x 5+1−21=x 6+1故答案为:B【分析】设这段公路的长是x 米, 根据“ 如果每隔5米栽1棵,则树苗缺21棵"可得树苗总数有(x5+1−21)棵;根据“ 如果每隔6米栽1棵 ”可得树苗总数有(x6+1),利用树苗总数不变列出方程即可. 7.若不论 k 取什么实数,关于 x 的方程 2kx+a 3−x−bk 6=1 ( a 、 b 常数)的解总是 x =1 ,则 a +b 的值是( ) A .−0.5 B .0.5 C .−1.5 D .1 【答案】A【解析】∵关于x 的方程 2kx+a 3−x−bk 6=1 的解总是 x =1∴2k+a 3−1−bk 6=1∴4k +2a −1+bk =6 ∴(4+b)k =7−2a∴{4+b =07−2a =0解得: {a =72b =−4 ∴a +b =72−4=−12故答案为:A.8.某超市为了回馈顾客,若一次性购物不超过300元不优惠,超过300元时按全额9折优惠.一位顾客第一次购物付款180元,第二次购物付款288元,若这两次购物付款合并一次性付款可节省( ) A .18元 B .16元 C .18或46.8元 D .46.8元 【答案】C 【解析】(1)若第二次购物超过300元, 设此时所购物品价值为x 元,则 90%x=288, 解得x=320,两次所购物价值为180+320=500>300, 所以享受9折优惠,因此应付 500×90%=450(元),这两次购物付款合并一次性付款可节省: 180+288-450=18(元),(2)若第二次购物没有超过300元, 两次所购物价值为180+288=468(元), 这两次购物付款合并一次性付款可节省: 468×10%=46.8(元), 故答案为:C .9.方程|x+1|+|x -3|=4的整数解有( )A .2个B .3个C .5个D .无穷多个 【答案】C【解析】根据数轴上任意两点间的距离等于这两点所表示的数的差的绝对值可得, 方程中的未知数x 表示到-1与3的距离的和等于4的整数值,所以x 1=−1,x 2=0,x 3=1,x 4=2,x 5=3,共有五个整数解. 故答案为:C.10.如图,在长方形ABCD 中,AB =4cm ,BC =3cm ,E 为CD 的中点,动点P 从A 点出发,以每秒1cm 的速度沿A→B→C→E 运动,最终到达点E .若点P 运动的时间为x 秒,则当△APE 的面积为5cm 2时,x 的值为( )A .5B .3或5C .103D .103或5【答案】D【解析】∵ 长方形ABCD 中,AB =4cm ,BC =3cm ,E 为CD 的中点,∴AB =CD =4,BC =AD =3,CE =12CD =2, 当P 在AB 上时,AP =x(0≤x ≤4),∴12x ·3=5, ∴x =103,当P 在BC 上时,BP =x −4(4<x ≤7),CP =3−(x −4)=7−x ,∴12(2+4)×3−12×4(x −4)−12×2(7−x)=5, 解得:x =5,当P 在CE 上时,如图,CP =x −7(7<x ≤9),PE =2−(x −7)=9−x ,∴12×3(9−x)=5, 解得:x =173,经检验不符合题意,舍去,所以当△APE 的面积为5cm 2时,x 的值为5s 或103s ,故答案为:D二、填空题(本大题有6小题,每小题4分,共24分)要注意认真看清题目的条件和要填写的内容,尽量完整地填写答案.11.已知x ,y ,z 满足x+43=y+32=z+84,且x −2y +z =12,则x = .【答案】14【解析】设x+43=y+32=z+84=t ,则x =3t −4,y =2t −3,z =4t −8,代入x −2y +z =12得:3t −4−2×(2t −3)+4t −8=12 解得:t =6, x =3t −4=14. 故答案为:14.12.x 是实数,若1+x +x 2+x 3+x 4+x 5=0,则x 6= . 【答案】1【解析】∵1+x +x 2+x 3+x 4+x 5=0① , ∴ 两边同时乘以 x ,x +x 2+x 3+x 4+x 5+x 6=0 ,∴1+x +x 2+x 3+x 4+x 5+x 6=1 , ∵1+x +x 2+x 3+x 4+x 5=0②, ②-①得 ∴x 6=1 , 故答案为:1. 13.《九章算术》中记载:“今有共买羊,人出五,不足四十五;人出七,余三.问人数、羊价各几何?”其大意是:今有人合伙买羊,若每人出5钱,还差45钱;若每人出7钱,多余3钱。
七上语文期末复习真题归类卷 专项5古诗文默写与文言文基础知识(答案版)

七上语文期末复习真题归类卷专项5古诗文默写与文言文基础知识一、古诗文默写。
1.直接型默写。
(1)树木丛生,。
(曹操《观沧海》)(2)我寄愁心与明月,。
(李白《闻王昌龄左迁龙标遥有此寄》)(3)夕阳西下,。
(马致远《天净沙·秋思》)(4),切问而近思,仁在其中矣。
(《〈论语〉十二章》)1. (1)百草丰茂(2)随君直到夜郎西(3)断肠人在天涯(4)博学而笃志(5),影入平羌江水流。
(李白《峨眉山月歌》)(6),崔九堂前几度闻。
(杜甫《江南逢李龟年》)(7),应傍战场开。
(岑参《行军九日思长安故园》)(8)不知何处吹芦管,。
(李益《夜上受降城闻笛》)(5)峨眉山月半轮秋(6)岐王宅里寻常见(7)遥怜故园菊(8)一夜征人尽望乡(9)淫慢则不能励精,。
(诸葛亮《诫子书》)(10),我言秋日胜春朝。
(刘禹锡《秋词(其一)》)(11)君问归期未有期,。
(李商隐《夜雨寄北》)(12),尚思为国戍轮台。
(陆游《十一月四日风雨大作(其二)》)(13)终古高云簇此城,。
(谭嗣同《潼关》)(9)险躁则不能治性(10)自古逢秋悲寂寥(11)巴山夜雨涨秋池(12)夜阑卧听风吹雨(13)秋风吹散马蹄声2.理解型默写。
(1)(2021随州)李白《闻王昌龄左迁龙标遥有此寄》中,采用寓情于景的手法,既点明了时令,又表达了漂泊之感和落寞之情的两句是:,。
(2)曹操在《观沧海》里引吭高歌“日月之行,若出其中;,”,抒发了统一中原、建功立业的宏伟抱负。
2. (1)杨花落尽子规啼闻道龙标过五溪(2)星汉灿烂若出其里(3)(2020黄冈)《天净沙·秋思》中使用大量名词,并运用对比手法,展现出一幅苍凉的深秋晚景图,蕴含作者漂泊天涯的孤寂愁苦之情的句子是:,。
(4)《〈论语〉十二章》中孔子论述君子对富贵的正确态度的句子是:,。
(3)枯藤老树昏鸦小桥流水人家(4)不义而富且贵于我如浮云(5)《夜上受降城闻笛》中描写大漠中凄神寒骨的边城夜色,表现征战之人戍守边关的凄苦和悲凉的诗句是:,。
新目标英语七年级上期末复习单元检测试卷 Unit 5测试题(含答案及听力材料)

Unit 5 Do you have a soccer ball?单元检测试卷考试时间:100分钟满分120分第一卷听力部分(20分)一、听录音,选出你所听到的单词或词组,听1遍(每小题1分,共5分)1. A. soccer B. basketball C. tennis D. volleyball2. A. let B. have C. watch D. play3. A. play sports B. watch TV C. play basketball D. play volleyball4. A. baseball bat B. sports collection C. tennis racket D. ping-pong bat5. A. five baseballs B. eight basketballs C. four tennis balls D. three volleyballs二、听录音,选择恰当的应答语,听1遍(每小题1分,共5分)1. A. Yes, I do. B. Yes, he does. C. No, she doesn’t2. A. A baseball. B. On the desk. C. Sounds great..3. A. Jim. B. Yes, it is. C. Yes, I do.4. A. It’s in his room. B. They’re on the floor. C. It’s interesting.5. A. I’m a boy. B. I’m in Class Four. C. That sounds good.三、听对话,判断句子正(T)误(F)(每小题1分,共5分)1. Mary is a girl.2. Mary has a ping-pong ball.3. Mary has a ping-pong bat.4. Jim doesn’t have a ping-pong bat.5. They can play ping-pong.四、听短文,回答问题,听2遍(每小题1分,共5分)1. Is Kelsey a girl?__________________________________.2. Does she play sports every day?_________________________________.3. How many ping-pong balls does she have?_________________________________.4. Does she play basketball?_________________________________.5. Does she have a basketball?_________________________________.第二卷笔试部分(100分)一、单项选择(每小题1分,共20分)1. This is _____ interesting book, please ______ it ______here.A. a; bring, toB.an; take, toC. an; bring, \D. an; take, \2. We have _____English books. He _____ an English book, too.A. a; haveB.an; hasC.many; hasD.much; has3. Do they _____ basketball?A. playsB. playC. play theD. playing4. _____ her mother _____an alarm clock?A.do, hasB. Does, haveC. Do, haveD. Does, has5. I _____ TV at night(在晚上).A. look atB. seeC. watchD. look6. Gina has five______.A. a baseballB. baseballsC. watchD. collection7. ---____ the math book on the floor? ---Yes _____.A. Does; it doesB. Do; it doC. Is; it isD. Are; they are8. The keys ______ in the dresser.A. haveB. isC. areD. has9. He _____ sports every day.A. playB. playsC. watchD. look10. _____a tennis racket?A. Are youB. Does you haveC. Do you haveD. Do you are11. Tony _____ a baseball, but he doesn’t ______a baseball bat.A. have, hasB. has, haveC. have, haveD. has, has12. He ______volleyball, he only ______ it on TV.A.plays, watchB. doesn’t play, watchesC.don’t play, watchesD. play, watches13. ---_____ they have any sports collections? ---Yes, they _____.A. Are, areB. Do, doC. Can, doD. Do, can14. ---Does Lily have an orange jacket? ---Yes, ______.A. she haveB. she hasC. she doesD. he does15. Do you have ______ alarm clock?A. aB. theC.anD.\16. Jack and Tom ______four pencils.A. hasB. haveC.areD.is17. We watch tennis_____ TV.A. inB.onC.underD.at18. ---Do you _______a Ping-Pong bat? ---______A. have; Yes, I have.B. have; Yes, I do.C. has; No, I have.D. has; Yes, I don’t.19. I play_____ basketball everyday.A. theB. aC.anD.\20. It _____ interesting.A. soundB. soundsC. lookD. looks二、完型填空: (每小题1分,共10分)Look at this girl in the picture, she is 21 good friend. 22 name is Lily. She is 23 .She is thirteen. This is me. My 24 is Li Ling. I’m a Chinese girl. I am one year younger than Lily. We are 25 the same class.Lily likes collecting sports things. She 26 a great sports collection. Look, these are her things. She has 10 tennis rackets, 8 baseballs, 6 basketballs, 12 footballs 27 18 volleyballs. But he 28 like sports. He 29 likes collecting sports things. His brother, David, likes soccer. He plays 30 every day with his friends.21. A. I B. me C. my D. a22. A. She B. Her C. My D. His23. A. an English B. English girl C. English D. England24. A. friend B. father C. mother D. name25. A. in B. at C. on D. for26. A. is B. are C. has D. have27. A. and B. or C. but D. /28. A. like B. likes C. is like D. liking28. A. don’t B. isn’t C. doesn’t D. am not29. A. no B. not C. many D. only30. A. football B. basketball C. baseball D. ping pong三、阅读理解(每小题2分,共20分)AFrank is my good friend. We are in the same class. He is fourteen, one year older than I. His parents are both teachers in No. 7 Middle School. Frank is a good student. He studies hard. His English and math are very good. He often helps other students with their English and math. Our teachers like him very much.We go to school together by bike in the morning. We have lunch at school. After school in the afternoon, we often play sports. We play soccer and baseball. In the evening, he does his homework at home. Sometimes he watches soccer games on TV. On Sundays, he goes out with his parents in his father’s car. They play in the park and do sports there. Sometimes my father takes me there, too. We play sports together. We have a good time.31. Who is Frank ? He is a ______.A. teacherB. soccer playC. studentD. driver32. I am ______ years old this year.A. fourteenB. thirteenC. fifteenD. twelve33. Frank is good at _______.A. Math and ChineseB. English and ChineseC. math and EnglishD. English and Chinese34. Frank _______at school.A. has breakfastB. has supperC. has lunchD. watches TV35. When does Frank do his homework? ________.A. In the eveningB. In the morningC. In the afternoonD. At noonBJim: Let’s play computer games.Peter: That sounds good. Where’s your computer?Jim: I don’t have a computer. Do you have a computer?Peter: No, I don’t. But I have a TV. Let’s watch TV.Jim: No, it’s boring. Let’s play tennis. I have a tennis racket.Peter: Good. Where is it?Jim: On the sofa. Do you have a racket?Peter: No, I don’t. Does your brother have a racket?Jim: Yes, he does. And he has tennis balls.36. Does Jim have a computer? ________A. He has no computer.B. He has two computers.C. Yes, he does.D. No, he doesn’t.37. Jim has a racket. Where is it? ________A. It’s on the sofa.B. It’s near the sofa.C. It’s behind the sofa.D. It’s under the sofa.38. Does Peter have a tennis racket? ________A.Yes, he does.B. He has a tennis racket.C. He has two tennis rackets.D. No, he doesn’t.39. Does Jim have a tennis racket? ________A.Yes, he does.B. No, he doesn’t.C. He has two tennis rackets.D. He doesn’t have a tennis racket.40. Does his brother have a tennis racket? ________A. He doesn’t have tennis balls.B.Yes, he does.C. No, he doesn’t.D. He has tennis balls.四、情景交际:从Ⅱ中找出与Ⅰ相对应的句子(10分)ⅠⅡ41. Let’s play soccer. A. Yes, they do.42. Do you have 70 tennis balls at school? B. No, he doesn’t.43. Do they like watching TV? C. No, we don’t.44. Does Eddy like sports? D. Great! That sounds fun.45. Do you and your friend play soccer every day? E. No, I have sixty.46. I’m sorry I can’t play tennis. F. I like both soccer and ping-pong.47. How many baseballs do you have? G. It’s in my backpack.48. Where’s your ping-pong bat, please? H. Yes, it’s interesting.49. Do you like computer games? I. Don’t worry, it’s easy, let me teach you.50. What’s favorite sport?J. Only one.五、词汇知识(每小题1分,共20分)第一节:根据汉语及首字母提示填空(每小题1分,共5分)51. _______(让我们) play tennis.52. I have a computer game. It's i__________.53. My mother ____________(有) a nice book.54. Do you want to j_______ the English club?55. To play soccer is ____________(困难的).第二节:用括号中所给词的适当形式填空(每小题1分,共5分)56. Jeff likes (strawberry) very much.57. There are two (tomato) on the tab1e.58. The food (be) very nice.59. Where (be) the vegetables?60. Let us (eat) some ice cream.61. What ________ Sue have? She has many sports things.62. Do you have some more paper? No, I ________.63. There ________ two footballs and a volleyball in the basket.64. Let’s ________ good friends.65. ________ you spell your name, please?66. ________ there a football game on TV today?67. Sorry, I ________ answer the question. It’s too difficul t.68. Mike ________ like sports. She thinks it’s boring.69. ________ they need more school things?70. I ________ a football fan. I like playing football very much.六、句型转换(每小题1分,共10分)71. My father doesn’t have a tennis ball. (肯定句)My father ________ a tennis ball.72. The books are in the bookcase. (划线部分提问)_______ _________ the books?73. Tim has a black watch. (一般疑问句)______ Tim ________ a black watch?74. She plays sports every morning. (否定句)She _______ ________ sports every morning.75. Jack and Tom have a nice room.(否定句)Jack and Tom ________ ______ a nice room.76. She has a notebook.(对划线部分提问)_______ does she _______?77. Those are English books. (单数句子)______ is _______ English book .78. It is a photo of her family.(划线部分提问)_______ _______ it?79. I have a ping-pong ball.(一般疑问句)_______ _________ have a ping-pong ball?80. My parents have a great sports collection. (改为否定句)My parents _______ _______ a great sports collection 七、根据汉语意思完成句子(每小题1分,共5分)81. 英语对她来说很难。
2020-2021学年度第一学期期末考试真题再现复习卷一(河南地区) 七年级英语试卷

2019-2020学年河南省郑州市七年级(上)期末英语试卷一、听力理解(20小题,每小题5分,共20分)第一节听下面五个句子,选择与句子内容相符的选项,并在答题卡上将该项涂黑.每个句子读两遍.1.(5分)(1)(2)(3)(4)(5)第二节听下面五个句子,选出相应的答语.从题中所给的A,B,C三个选项中选出最佳选项,并在答题卡上将该项涂黑.每个句子读两遍.2.(1分)A.Yes,it is.B.Yes,I am.C.No,it doesn't.3.(1分)A.It's 8:30.B.It's on January 3rd.C.It's Monday.4.(1分)A.You're right.B.You're welcome.C.You're OK.5.(1分)A.Fish.B.Ice cream.C.Strawberries.6.(1分)A.Oh,no.B.I'll take it.C.Thank you.第三节听下面两段对话,每段对话后有几个小题,从题中所给的A,B,C三个选项中选出最佳选项,并在答题卡上将该项徐黑.每段对话读两遍.7.(2分)听下面一段对话,回答下列小题.(1)What new subjects does Jerry have this year?A.Science and mncic.B.Music and history.C.History and science.(2)Who is Jerry's science teacher?A.Mr.Wu.B.Mr.Brown.C.Miss Smith.8.(3分)听下面一段对话,回答下列小题.(1)Who is the man shopping for?A.His son.B.His friend.C.His daughter.(2)What does the man buy?A.A red jacket.B.A black jacket.C.A white jacket.(3)How much will the~pay?A.﹩10.B.﹩20.C.﹩30.第四节听下面一篇短文.根据短文内容,按照你听到的顺序将下列图片(A,B,C,D,E)N眸,并在答题卡上将与其相对应的选项涂黑.短文读两遍.9.(5分)(1)(2)(3)(4)(5)二、单项选择(15小题,每小题1分,共15分)从A,B,C,D四个选项中选出一个最佳选项,并在答题卡上将该项涂黑.10.(1分)We have _________art lesson every week.()A.a B.an C.\D.the11.(1分)﹣Are those notebooks Sally's?﹣No,they're _________.I lost them this morning.()A.hers B.mine C.ours D.theirs12.(1分)Huawei's 5 G smart phone helps users download(下载)a movie just in five ________.()A.hours B.days C.seconds D.weeks13.(1分)﹣Why don't you like geography?﹣Well,the teacher is friendly,but the classes are _________for me.()A.easy B.relaxing C.healthy D.difficult14.(1分)﹣Do you know all the _________names in your class,Mr.King?﹣No,only part of them.()A.student B.students C.student's D.students' 15.(1分)It's easy to buy things _________a good price on Taobao in China now.()A.at B.for C.in D.of16.(1分)﹣__________ is David?﹣I think he is in our classroom.()A.Who B.How C.Where D.What17.(1分)This is a photo of my grandpa.He _________young.()A.looks B.feels C.sounds D.hears18.(1分)The little girl is crying,_________she can't find her parents.()A.and B.but C.so D.because19.(1分)﹣How much _________the set of books about Chinese history?﹣30 dollars.()A.is B.are C.do D.does20.(1分)Alan usually goes to Harbin in _________.He likes playing with snow.()A.May B.July C.September D.November21.(1分)I _________see the blackboard.I need to have my classes.()A.can B.can't C.must D.mustn't22.(1分)﹣Does Tony have a sister?﹣____________.He is the only child in his family.()A.Yes,he is B.No,he isn'tC.Yes,he does D.No,he doesn't23.(1分)﹣Mum,can I go to the party with Alice this evening?﹣OK.__________________()A.Here you are!B.I'm fine.C.Have a good time!D.That's for sure.24.(1分)Which of the following sentences is right?()A.My books on the desk.B.Nice meet you,too.C.These are my dictionaries.D.Thanks you for your help.三、完形填空(1小题,每小题10分,共10分)先通读短文,掌握其大意,然后从A,B,C,D四个选项中选出一个可以填入相应空白处的最佳选项,并在答题卡上将该项涂黑.25.(10分)Tomas Flores is a farmer.He doesn't have lots of (1),He grows(种植)carrots,tomatoes and (2)He and his wife Rosa work hard every day.Tomas has a cow.It gives a lot of (3)every day.One day,Rosa comes home from town" There is a dance in town on Saturday.Can we(4)?." says Rosa." I am sorry.We can not go because we don't have much money to buy(5)."says Tomas.His wife is a little (6)The next day,Tomas has an idea.He takes the cow to town and sells it.He buys a very (7)dress for his wife.He runs home and gives Rosa the dress,(8)Rosa is very angry."Our cow gives us milk every day I,"she says," (9)sell the milk,then we can get money to buy food.We need our cow!"Tomas takes the dress back and buys his cow.This story (10)people,"Never sell something you need to buy something you want."(1)A.rice B.time C.money D.bread(2)A.eggs B.cakes C.hamburgers D.potatoes(3)A.tea B.milk C.coffee D.water(4)A.go.B.come C.stay D.leave(5)A.cows B.farms C.rings D.clothes(6)A.bored B.happy C.cool D.sad(7)A.short B.long C.nice D.dirty(8)A.or B.and C.but D.for(9)A.They B.We C.He D.She(10)A.asks B.tells C.calls D.helps四、阅读理解(20小题,每小题5分,共20分)阅读下面四篇语言材料,然后按文后要求做题.26.(5分)I'm Harry.Every morning my mother goes into my room.She looks at my bed to see if it is tidy.Every day,she asks me to make my bed first:It seems a little boring over time,but the wisdom behind this is great.If you make your bed every morning,it means you finish the first thing of a day.It will give you a small sense of pride(自豪感)and you can do another thing,and another and another.Making your bed also makes you know that little things in life are not easy.If you can't do the little things right,you will never do the big ones right.If you have a bad day,you will come home to a clean bed and that gives you happiness.You will believe that tomorrow will be better.If you want to change(改变)the world,start from making your bed.根据材料内容选择最佳选项,并在答题卡上将该项涂黑.(1)Why does Harry's mom come to his room in the morning?A.She wants to give him breakfast.B.She wants to see if his bed is tidy.C.She wants to ask him to go to school.D.She wants to help him clean the room.(2)What does the word "wisdom" mean in Chinese?A.财富B.骄傲C.智慧D.满足(3)What is the first thing of a day for Harry?A.To do sports.B.To read books.C.To make the bed.D.To drink water.(4)The writer thinks that making the bed every morning is,A.fun.B.easyC.hardD.useful(5)What does the text(文本)want to tell us?A.Tomorrow is better.B.Listen to your mom.C.Make your own bed clean and tidy.D.The big things start from little things.27.(5分)Bonobos live in the rain forest.But some people come and kill their mothers.A lady,Claudine Andre,comes to the rain forest to help the baby bonobos.She makesa safe place for them to live in.She also looks after(照顾)them.Soon,more and morepeople come to help look after the baby bonobos.They bring milk for them and help them take a bath(洗澡):Also,they teach the bonobos to be like bonobos.With the help of many people,the baby,bonobos live there happily.They learn to look for their food.They can find bananas and open nuts by themselves.They learn to be friendswith one another.They can go with the big bonobos and be in a family.When the bonobos are ready,they can go back to the rain forest and live in the trees again.They are happy there,for the rain forest istheir home." It is not easy.But I think it's worthy(值得的),"says Claudine Andre with a smile on her face.根据材料内容选择最佳选项,并在答题卡上将该项涂黑.(1)Why does the lady help the baby bonobos?A.They lose their mothers.B.The lady lives near them.C.They are lovely and cute.D.The lady wants to study them.(2)What do more and more people do for the baby bonobos?A.They make a safe place.B.They bring water for them.C.They help them take a bath.D.They teach them to cook food.(3)What can the baby bonobos do with the help of people?A.Look for a better place.B.Help people around them.C.Make friends with people.D.Be in a family with big ones.(4)What do you think of Claudine Andre?A.Funny.B.Kind.C.Clever.D.Beautiful.(5)What is the best title(标题)for the text?A.Find baby bonobosB.Look after animalsC.Go back to the rain forestD.Live with baby bonobos28.(5分)Welcome to The Maine School Library! Here are some rules for you.Come and see !The Maine School LIBRARYReading for the futureOPENING HOURS THURSDAY 09:00﹣17:00MONDAY 09:00﹣17:00 FRIDAY 08:00﹣15:00 TUESDAY 09:00﹣17:00 SATYRDAY 09:00﹣12:00 WEDNESDAY 09:00﹣20:00 SUNDAY CLOSEDLIBRARY RULESAll students must have a library card.Computers are for schoolwork only.No food or drink in the library.No running or shouting in the library.Mobile phone must be off.Students can borrow 3 books at one time.Thank you!根据材料内容选择最佳选项.(1)Helen only has time after 17:00,what day can she go to the library?A.Monday.B.Wednesday.C.Friday.D.Saturday.(2)How long can you stay in the library on Saturday?A.3 hours.B.7 hours.C.8 hours.D.11 hours.(3)What must you take when you get into the library?A.A computer.B.A book.C.A library card.D.A mobile phone.(4)How many rules are there in the Maine School Library?A.Three.B.Four.C.Five.D.Six.(5)What kind of text is it?A.A letter.B.An ad.C.An e﹣mail.D.A notice.29.(5分)"It' s so cold.""Yes,it is.I wear my long johns(秋裤)today."This little talk happens when you run into your classroom at school.It's an example of "small talk".In our everyday life,small talk is a big deal.It can help you meet new people and make new friend,.The topics(话题)of small talk usually include(包括)the weather,hobbies,family and travel.These topics are great because they are easy to talk about.You can also talk about what is around you.For example,you can talk to your classmates about an interesting teacher in your class.If you're at a party,you can talk about thefood,music or the people there.Sometimes,it is a bit difficult to start talking with someone you don't know.But that's OK! Just be nice and show people that you like them.Share(分享)your happiness or worries with them.People can be friendlier than you think.根据材料内容判断下列句子正(T)、误(F).(1)The example at the beginning is about family.(2)Small talk can help you meet new people and friends.(3)Weather and hobbies are difficult to talk about.(4)Talking about the food at a party is small talk.(5)It is a good start to show people that you like them.五、补全对话(1小题,每小题10分,共10分)根据下面的对话情景,选择能填人每个空白处的最佳选项,使对话的意思连贯、完整,并在答题卡上将该项涂黑.注意:方框中有两个多余选项.30.(10分)A:Hi,PeterB:Hello,Jim! I am so happy to see you in the sports park.A:Yeah! It's a good place to play soccer.(1)B:Sure.I just have one in my bag.A:Great! (2)(After playing soccer in the park)A:So nice to play with you.I want something to drink.B:Look,a juice bar.What's your favorite juice?A :Apple juice.(3)B:Pear juice.I have a great time with you.A:I am happy to hear that.We can meet on Friday afternoons.B:Good idea.(4)A :I call you now.You can keep it.B:(5)A.All right!B.How about you?C.I like drinking tea.D.Can you play soccer?E.Do you have a soccer ball?F.We can play together over there.G.May I know your new telephone number?六、词语运用(10小题,每小题1分,共10分)A. 根据句意及括号所给的汉语意思,写出空缺处单词的正确形式,每空限填一词.31.(1分)There are two seats(空着的)on the bus.32.(1分)Tommy and I are friends.I often play with(他).33.(1分)My father often(观看)basketball games on Sundays.34.(1分)I have a new(双)of running shoes.35.(1分)September is the(第九)month of the year.My birthday is in it.B. 根据下列句子的意思,写出括号内所给单词的正确形式,每空限填一词.36.(1分)China(have)a very long history.37.(1分)Mr.White is(they)head teacher.38.(1分)Many parents are busy.Let's(help)them do housework.39.(1分)I(real)want to have a strong body and a great mind next year.40.(1分)Life is like a piano.The white(key)are happy days and﹣the black are sad days.七、书面表达(15分)41.(15分)假如你是杨明,初中生涯的第一个学期你新结交了一位好朋友李华,请你用英语给国外的网友Richard写一封电子邮件,介绍李华的学习和生活.要求:1.文中不得出现真实的人名和校名;2.词数50左右.Dear Richard,.Yours,Yang Ming。
2020-2021学年江苏省徐州市邳州市七年级(上)期末历史试卷含解析

2020-2021学年江苏省徐州市邳州市七年级(上)期末历史试卷一、选择题:在下列各题的四个选项中,只有一项最符合题意,每题1分,共30分.1. 1987年,北京周口店北京人遗址被联合国教科文组织列入世界文化遗产名录,是因为()A.北京人是我国境内目前已确认的最早的古人类B.遗址内发现了大量的稻谷、谷壳、稻秆和稻叶堆积C.在这里发现了人类最早使用的陶器D.这是迄今所知世界上内涵最丰富、材料最齐全的直立人遗址2. 某班同学进行主题研究,根据提供的三个关键词可以判断,横线上应填入______的生活()关键词1:黄河流城关键词2:种植粟关键词3:半地穴式房屋A.山顶洞人B.半坡人C.河姆渡人D.良渚人3. 作家冯安泽在《尧舜禹的传说》一书中用充足的证据说明尧舜禹是人类文明的先驱,对他们先后担任部落联盟首领的方式进行了较为严谨客观的归纳与评价。
该方式是()A.战争B.世袭C.禅让D.自荐4. 约公元前2070年,夏朝建立。
这一年属于()A.公元前19世纪B.公元前20世纪C.公元前21世纪D.公元21世纪5. 烽火戏诸侯、尊王攘夷、礼崩乐坏,以上三个成语体现了哪种制度()A.禅让制B.分封制C.郡县制D.科举制6. 有学者曾说:“商代的文化实在是一个灿烂的文明。
”下列能说明这句话的是()①青铜制作工艺高超②创制了比较成熟的文字③广泛应用铁制农具④出现了世界上最早的纸A.①②B.①③C.②③D.③④7. 为了提高复习效率,小李同学绘制了一张战国时期知识结构图。
空白处应填入()A.各地爆发大规模的农民起义B.少数民族政权纷纷入主中原C.八王之乱造成人口大量死亡D.铁农具和牛耕的使用及推广8. 商鞅“相秦十年,宗室贵戚多怨望(怨恨不满)。
”这主要与他实行的哪项改革措施有关()A.允许土地买卖 B.确立县制 C.改革户籍制度 D.奖励军功9. 他出生在春秋时期的鲁国,曾带领学生周游列国,寻找能够接受他的主张的国君,结果失败,他决心推动人们去施“仁”。
人教版七年级英语上册 Unit 5 期末复习 习题教学课件PPT初一公开课

英语·人教版·七年级上册UNIT5Do you have a soccer ball?Section A1.play tennis2.play volleyball3.play basketball4.play ping-pong5.play soccer .....一、将下列英语与图片中的运动配对1—E 2—D 3—A 4—C 5—BA D CB E二、 用所给单词的适当形式填空1.I have a blue jacket and my sister (have) a purple one.2.[2021郑州枫杨外国语学校期中] My father doesn't let me (play)computer games onschooldays.3.Mike's friends gave him two (volleyball) as birthday gifts(礼物).4.The song (sound) very great and I like it very much.5.Cindy (go) to school by bus, but I walk there.1.has 句意:我有一件蓝色的夹克衫,我妹妹有一件紫色的。
空处所在分句的主语my sister是第三人称单数,故空处应用has。
2.play 句意:我爸爸不让我在学校上课日玩电脑游戏。
let sb. do sth."让某人做某事",为固定搭配,故空处填动词原形。
3.volleyballs 由two可知应用复数形式。
4.sounds 句意:这首歌听起来很棒,我非常喜欢它。
sound"听起来",因为主语是The song,故应用sounds。
5.goes 句意:辛迪坐公共汽车去上学,而我步行去那儿。
主语是第三人称单数Cindy,故谓语动词用goes。
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A
E
2017学年第一学期七年级数学期末考试模拟卷5
班级 姓名 成绩
一、单项选择题﹙每题2分,共12﹚
1.下列运算中,正确的是 ( ) A ()
532a a = ; B 532a a a =⋅; C 532a a a =+ ; D 2
36a a a =÷ 2.下列各式中:
m 3,3a -,-221,3
m -,2.7y 3
,单项式的个数为 ( ) A 1个 ; B 2个 ; C 3个 ; D 4个
3.把1--+b a ab 分解因式的结果是 ( ) A ()()11++b a ; B ()()11--b a ;
C ()()11+-b a ;
D ()()11-+b a
4.下列分式中,计算正确的是 ( )
A ()()c b a c b +++32=3
3+a ; B 2
2b a b a ++=b a +2 ; C
()()2
2a b b a --=1; D
2
22y
x xy x
y ---=x y -1 5.若分式1
1
2--x x 的值为零,则 x 的值为 ( )
A 0 ;
B 1 ;
C -1 ;
D 1或-1
6.下列图形中,既是中心对称图形,又是轴对称图形的有 ( )
()1线段 ()2 角 ()3 正方形 ()4 长方形 ()5 等腰三角形 ()6 直角三角形
A 1个 ;
B 2个 ;
C 3个 ;
D 4个 二、填空题(每题2分,共28分) 7. 计算:(
)22
4
23324681224y x
y
x y x y x ÷-+= 。
8. 计算:()()232-+x x = 。
9. 因式分解:2
2
944x xy y -+-= 。
10. 因式分解:2
2
32x xy y -+= 。
11.
y
x xy 225
34和的最简公分母是 12. 多项式x 2
+mx-6在整数范围内可因式分解, m 可以取的值是 (写出一个即可)。
13. 计算:a b a b a b -+-33= 。
14.化去z
x xy a 1
3
2---中的负指数可得 。
15.医学研究中心新发现的一种病毒的切面呈圆形,它的直径为0.000 000 043米,将这个数用科学记数法表示为 米。
16.当x ,分式2
4
2-+x x 有意义。
17.如果分式522-+x x 的值为零,那么x= 。
1819.如果三角形ABC 与三角形ADE 绕A 点逆时针旋转 度能与三角形重合。
20.点B 是长度为6的线段AC 的中点,如果把线段BC 平移而得到的,那么平移的距离是 。
三、简答题(本大题共6题,每题5分,满分30分) 21.因式分解:m 22222222x n y m y n x --+ 22. 计算:x x x x -÷⎪⎭
⎫ ⎝⎛++-121111
2
23. 计算:4
4212122---++-a a
a a a 24.解方程:3121-=+-x x x
25.先化简再求值 42231.12
22--÷+++⎪⎭⎫ ⎝
⎛
+-x x x x x x x x x 其中x=-21
A
B
C
L
26、画出三角形ABC 关于直线L 的对称图形 四、(本大题共2题,每题7分,满分14分)
27.小杰和小胖练习跑步,小杰比小胖每分钟多跑50米,小杰跑750米所花的时间与小胖跑600米所花的时间相同。
问小杰和小胖每分钟各跑多少米?
28. 如图是一个数字键盘,其中的圆被等分成六个相同的扇形。
(1)图中标有数字“0”的扇形绕圆心A 按顺时针方向旋转 度,可以与标有数字“1”的扇形重合。
(2)图中标有数字“0”的扇形绕圆心A 按顺时针方向旋转 度,可以与标有数字“3”的扇形重合。
(3)如果让标有数字“0”的扇形与标有数字“n”的扇形重合(n=1,2,3,4,5),则标有数字“0”的扇形绕圆心A 按顺时针方向至少旋转 度(用含n 的代数式表示).
1
2
3
4
5
A
五、(本大题共2题,每题8分,满分16分)
29.如图,学校操场是由两个半径为r 的半圆和一个长方形组成的,操场的面积为S. (1)用r 和S 表示a;
(2)当r=20米,S=3600平方米时,求a 的值。
(保留 )
30、(1)在甲图所示编号为①、②、③、④的四个三角形中,关于直线y 对称的两个三角形的编号为 ;关于坐标原点O 对称的两个三角形的编号为 ; (2)在乙图中,画出与△ABC 关于直线x 对称的△A 1B 1C 1。