苏科版七年级数学上册4.3.4行程问题同步练习带答案

苏科版七年级数学上册4.3.4行程问题同步练习带答案第4课时行程问题知识点行程问题1A，B两地相距480千米，一列慢车从A地出发，每小时行驶60千米，一列快车从B地出发，每小时行驶90千米，快车提前30分钟出发，两车相向而行，慢车行驶多少小时后两车相遇？设慢车行驶x小时后两车相遇，根据题意，下面所列方程正确的是()A60(x30)90x480 B60x90(x30)480C60(x3060)90x480 D60x90(x3060)4802甲、乙两人从学校到博物馆去，甲每小时走4 km，乙每小时走6 km，甲先出发1 h，结果乙还比甲早到1 h设学校到博物馆的距离为s km，则以下方程正确的是()A.s41s61 B.s4s61C.s41s61 D4s16s13小明每秒跑6米，小彬每秒跑5米，小彬站在小明前10米处，两人同时起跑，小明追上小彬要用()A5秒 B6秒 C8秒 D10秒4一艘轮船在A，B两港口之间行驶，顺水航行需要5 h，逆水航行需要7 h，水流的速度是5 km/h，则A，B两港口之间的路程是()A105 km B175 km C180 km D210 km5甲、乙两人在环形跑道上同时同地出发，同向跑步，甲的速度为7米/秒，乙的速度为6.5米/秒，若跑道一周的长为400米，设经过x秒后甲、乙两人第一次相遇，则列方程为_6一条山路，某人从山下往山顶走3小时，还差1千米才到山顶，若从山顶走到山下，只用150分钟，已知下山速度是上山速度的1.5倍，则上山速度为_7列车从甲站到乙站原需16小时采用“和谐”号动车组提速后，列车行驶速度提高了176千米/时，从甲站到乙站的时间缩短了11小时，列车提速后的速度为_千米/时8一只轮船在A，B两码头之间航行，从A到B顺流需4 h，已知A，B间的路程为80 km，水流的速度为2 km/h，则从B返回A用_h.9甲、乙两站相距240千米，一列慢车由甲站开出，每小时行驶50千米；同时，一列快车由乙站开出，每小时行驶70千米两车同向而行时，快车在慢车的后面，经过几小时快车可以追上慢车？ 10甲、乙两站相距60千米，一列快车从甲站开出，每小时行48千米；一列慢车从乙站开出，每小时行36千米，问：两车相向而行，同时开出，经过多少小时相遇？ 11王强参加了一场3000米的赛跑，他以6米/秒的速度跑了一段路程，又以4米/秒的速度跑完了其余的路程，一共花了10分钟，王强以6米/秒的速度跑了多少米？ 12甲、乙两人分别从两地同时出发，若相向而行，则6 h相遇；若同向而行，则12 h甲追上乙，那么甲的速度是乙的速度的()A.32倍 B.23倍 C3倍 D.13倍13汽车以每小时72千米的速度笔直地开向寂静的山谷，驾驶员按一声喇叭，4秒后听到回响，已知声音的速度是每秒340米，听到回响时汽车离山谷的距离是_米14轮船沿江从A港顺流行驶到B港，比从B港返回A港少用3小时，若船速为26千米/时，水速为2千米/时，则A港和B港相距多少千米？ 15如图437，已知甲、乙两车同时从A地出发，相背而行，甲车速度为每小时40千米，乙车速度为每小时30千米，2小时以后，甲车因有重要物品要还给乙车，回头去追赶乙车，从A地出发多长时间后，甲车追上乙车？ 16A，B两地相距120 km，一辆汽车以每小时50 km的速度从A地出发，另一辆货车以每小时40 km的速度从B地出发，两车相向而行经过多少时间两车相距30 km? 17张伯和李婶每天饭后都有到学校大操场跑道上散步半小时的习惯，张伯采用变速散步的方式，李婶则坚持匀速散步某次散步，张伯刚开始10分钟以60米/分的速度行走，热身后速度减慢13继续行走10分钟后，最后又以比开始时增加13的速度快速行走10分钟，若设张伯行走时间为x(分钟)，行走的路程为y(米)(1)请用含x的代数式表示y：当行走时间在10分钟内时，y_；当行走时间在10至20分钟时，y_；当行走时间在20至30分钟时，y_(2)若李婶与张伯同时同地同向出发，李婶以50米/分的速度匀速散步，则他们散步多少时间时相距90米？ 1D2.C3D4B57x6.5x4006. 43千米/时7. 7256859解：设经过x小时快车可以追上慢车根据题意，得70x50x240，解得x12.答：经过12小时快车可以追上慢车10解：设两车经过x小时相遇根据题意，得48x36x60，解得x57.答：两车经过57小时相遇11解：设王强以6米/秒的速度跑了x米，根据题意，得x63000x41060，解得x1800.答：王强以6米/秒的速度跑了1800米12C.13640米14解：设A港和B港相距x千米根据题意，得x2623x262，解得x504.答：A港和B港相距504千米15解：设从A地出发x小时后，甲车追上乙车由题意得40(x2)30x240，解得x16.答：从A地出发16小时后，甲车追上乙车16解：相遇前：行程之和30两地距离；相遇后：行程之和30两地距离设经过x小时两车相距30 km.根据题意，得相遇前：50x40x30120，解得x1；相遇后：50x40x30120，解得x53.答：经过1小时或53小时两车相距30 km.17解：(1)60x40x20080x600(2)当行走时间在10分钟内时，根据题意，得60x50x90，解得x9；当行走时间在10至20分钟时，根据题意，得40x20050x90或50x(40x200)90，解得x11或x29，但x2920，不符合题意，舍去；当行走时间在20至30分钟时，根据题意，得80x60050x90或50x(80x600)90，解得x23或x17，但x1720，不符合题意，舍去综上所述，当x9或11或23时，他们相距90米答：他们散步9分钟或11分钟或23分钟时，相距90米 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