2018年北师大版八年级数学上册第一次月考试题

2018年北师大版八年级数学上册第一次月考试题北师大新版八年级数学上册第一次月考试题满分：120分 考试时间：90分钟一、 选择题1、下列各组数据中的三个数，可作为三边长构成直角三角形的是()A、2，3，4B、1，1，2C、6，6，6D、0.3，0.4，0.52、下列二次根式中，属于最简二次根式的是() A、 B、 C、 D、 3、下列各式中，正确的是() A、 B、 C、 D、 4、若将直角三角形的三边长扩大到原来的2倍，所得到的三角形是( ) A、直角三角形B、锐角三角形C、钝角三角形D、等腰三角形5、若规定误差小于1, 那么 的估算值为（ ）A. 3 B. 7 C. 8 D. 7或86、以下列各组数为边长，能组成直角三角形的是（ ）A8，15，17 B4，5，6 C5，8 ，7 D8，39，407、一直角三角形的三边分别为2、3、x，那么以x为边长的正方形的面积为 （ ）A、13 B、5 C、13或5 D、无法确定8、4的平方的倒数的算术平方根是（ ） A4 B C- D 9、如果一个数的立方根是这个数本身，那么这个数是( )A、1 B、 C、 D、 10五根小木棒，其长度分别为7，15，20，24，25，现将他们摆成两个直角的是（ ） 二、 填空题11、直角三角形两直角边分别是3cm、4cm，则斜边上的高的长度是. 12、在实数 、 、 、 、 、 、 、3 、2.1010010001(两个1之间依次多一个0)中，无理数共有个.13 已知 ，则 = 。14 直角三角形的一条直角边长为5，斜边长为13，则这个直角三角形的另一条直角边长为_15如果 的平方根等于 ，那么 ；16 64 的算术平方根与 的算术平方根之和是_ _ 三、 解答题17、计算： . 18、已知(a2)的平方根是2，(2ab7)的立方根是3，求(ab)的算术平方根 19、(1)在图（1）中的数轴上作出 对应的点P(必须保留作图痕迹)； 20、如图，在RtABC中，C90，BC12cm，AB20cm，BD平分ABC，交AC边于点D，过D作DEAB，垂足为E，求DE的长 21、如图，四边形ABCD中，DAAB ，DAAB ，BC ，DC1则ADC的度数是，说明理由 22、我们知道， ，( )( )3 如果两个含有二次根式的非零代数式相乘，它们的积不含有二次根式，就说这两个非零代数式互为有理化因式。如 与 互为有理化因式， 与 互为有理化因式。利用这种方法，可以将分母中含有二次根式的代数式化为分母是有理数的代数式，这个过程称为分母有理化例如： ， (1) 分母有理化的结果是， 分母有理化的结果是； 分母有理化的结果是.(2)利用以上知识计算： 精编2018-2019年七年级英语上第一次月考试卷七年级 英 语 (考试时间：120分钟 总分：150分)Class: Name: Marks: 注意事项：1、答题前填写好自己的姓名、班级、考号等信息。2、请将答案正确填写在答题卡上。第卷（选择题 共85分）I. 单项选择。(A)选出可以填入空白处的最佳选项。（15小题，每题2分，共30分）( )1._ is he? He is my friend.A. What B. Where C. Who D. How( )2. Mary and Joy are _ Class One. They are _ the U.S.A.A. from; in B. in; from C. to; from D. in; to( )3. _ Yes, Im Mike.A. Whats your name? B. What are you? C. How are you? D. Are you Mike?( )4.Is this _ car? Yes, its _ English car.A. a; an B. a; a C. an; an D. an; a( )5.What are those? _ are cakes.A. These B. We C. Those D. They( )6.Whats that _ English? Its a desk.A. from B. to C. in D. /( )7. 当别人称赞你时, 你应该说: “_”。A. Thanks. B. Good. C. Yes. D. No.( )8.Is her name Sally? _A. Yes, she is. B. No, she isnt. C. Yes, its. D. No, it isnt.( )9. Im in Class 4. Are you in Class 4, _?A. either B. too C. and D. also( )10. Welcome to Beijing! _A. Welcome to Beijing, too. B. Thanks.C. Fine, thanks. D. Yes, I am.( )11. _, are you Michael? No, Im not. Im Ben.A. How are you B. OK C. Excuse me D. Thanks( )12. This is my teacher, Miss Chen. _ is from Beijing.A. She B. He C. Her D. His( )13. Linda is fifteen _.A. year B. years C. years old D. year old( )14. _ . B-O-O-K,book.A. Can you spell it, please? B.Whats this in English?B. How do you spell it? D. How are you? ( )15. What _ is Maria in? She is in _ Six.A. Class; Class B. Class; class C. class; class D. class; Class(B)选出与划线部分意思相同或相近的最佳选项。（5小题，每题1分，共5分）( )16.Whats your name? My name is Li Ming.A. You are B. I am C. I is D. She is( )17.Thank you very much. You are welcome.A. Thats OK. B. Fine, thanks. C. Nice to see you. D. Good morning( )18.How are you? Fine,thanks.A. Yes, she is. B. Goodbye! C. No,she isnt. D. Im OK.( )19.Here you are. Thanks.A. Thats OK. B. Thank. C. Thank you. D. Bye.( )20.Theyre Maria and Jane.A.They am B. They is C. They are D.You are. 完形填空。（10小题，每题1分，共10分） Hello! 21 name is Li Ying. Im twelve. Im from Kunming. Now Im in Beijing No.14 High School. Im 22 Class Five, Grade Seven. Miss Gao 23 my English teacher. She is 24 old teacher. I have(有) a pen, a ruler and two 25 in my pencil-box(文具盒). Liu Ping is in Grade Seven, too. 26 is from Guangzhou. She is my good 27 . We are in 28 same class. Now she can 29 English well(好). I think(认为) she is a good girl. Look！ 30 is that? She is Liu Ping.( )21. A. I B. My C. Your D. Me( )22. A. from B. to C. not D. in( )23. A. is B. are C. am D. be( )24. A. a B. an C. good D. /( )25. A. buses B. desks C. schoolbags D. pencils( )26. A. He B. His C. She D. Her( )27. A. friend B. teacher C. student D. mom( )28. A. these B. the C. an D. a( )29. A. spell B. speak C. help D. see( )30. A. How B. What C. Where D. Who . 阅读理解（15小题，每题2分，共30分） AName Age From TelZhong Nan 40 Beijing 8876-5342Gao Ming 13 Shanghai 5673-6981Martin 28 England 7342-6979( )31. Gao Ming is from _. A. the U.S.A. B. Japan C. China D. Canada( )32. Martin is _. A. Chinese B. Japanese C. American D. English( )33. Is Zhong Nan from China? A. No, he is. B. No, he isnt. C. Yes, he is. D. Yes, it is.( )34. How old is Zhong Nan? A. 8876-5342 B. 13 C. 28 D. 40( )35. His telephone number is 5673-6981. Who is he?A. He is Martin. B. He is Zhong Nan. C. He is Gao Ming. D. He is 40.BHello! My name is Joy. Im a girl. Im eleven. Im in Class Eight, Grade Seven. This is my friend, Joan. She is twelve. She is in a high school. She is in Class Seven, Grade Eight. My English teacher is Miss White, but her English teacher is Miss Green. Look！Whos that? Oh, shes my mom. Shes a Chinese(语文, 中文) teacher.( )36. _ is in Class Eight, Grade Seven.A. Joan B. John C. Joy D. Joe( )37. Joan is Joys _.A. teacher B. friend C. student D. mom( )38. Joan is _. A. eleven B. twelve C. thirteen D. fourteen( )39. Joys English teacher is _.A. Miss White B. Miss Green C. Joys mom D. Joan( )40. Joys mother is _.A. an English teacher B. a friendC. a student D. a Chinese teacher CHello! My name is John Brown. Im from England. Im an English teacher. Im in Beijing International School.My telephone number is 8523-3237. Zhang Hao, Alice and Yingzi are my students. Im Zhang Hao. My English name is Peter. Im eleven years old. Im from Beijing. My telephone number is 8876-5342.Alice Brown is my name. Im twelve. Im from Canada. My mom is a teacher. My telephone number is 7342-6979.Im Yingzi. Im fourteen years old. Im from Japan. 5673-6981 is my telephone number.( )41. Where is John Brown from?America B. China C. England D. Japan( )42. Peter is a .A. girl B. teacher C. mom D. student( )43. Alice is a girl. Her telephone number is .A. 5673-6981 B. 8876-5342 C. 7342-6979 D. 8523-3237( )44. How old is Yingzi?A. 11. B. 12. C. 13. D. 14.( )45.下面哪一项叙述是不正确的？A. John Brown is an English teacher. B. Zhang Hao is from China.C. Alice is a teacher. D. Yingzi is a girl student. . 补全对话。（5小题，每题2分，共10分，其中有两个选项多余）A. Welcome to China.B. Whats your telephone number?C. Are you Maria?D. Whats your name, please?E. Thats OK.F. Where are you from?G. How are you?A: Excuse me, 46. B: My name is Maria. A: 47. B: Im from Cuba.A: 48. B:It is 4383927.A: 49. B: Thank you very much.B: 50. 46._ 47._ 48._ 49._ 50._第卷（非选择题 共65分）V. 词汇（A）用所给单词的适当形式填空。（5小题，每题2分，共10分）51._(she) name is Jane.52.Michael