武汉外校2016九月七年级周练二
湖北省武汉外校2016-2017学年度下学期期中考试七年级英语试题(无答案,无听力部分)
武汉外校2016-2017学年度下学期期中考试七年级英语试题II. Multiple Choice. (1×15’)26. —I came first in the long jump.—______. I’m so proud of you.A. Good luckB. Have funC. Well doneD. You’re joking27. —Daddy, can you come home for supper with us this weekend?—______, but I might be a little late.A. I’m busyB. Hard to sayC. Of courseD. Never mind28. Look! The boy ______ blue jeans ______ a bicycle.A. in; is ridingB. in; rideC. on; ridingD. on; is riding29. How many ______ are there in the box?A. packets of sweetB. packet of sweetC. packet of sweetsD. packets of sweets30. —Can I have 450 grams of cheese?—I’m sorry, but there ______ cheese.A. isn’t anyB. aren’t anyC. isn’t someD. aren’t some31. Miss Grey always ______ her car to school, but now she ______ to school.A. drive; walkB. drives; walksC. is driving; is walkingD. drives; is walking32. The International Convention Centre is the ______ for a three-day arts festival.A. ceremonyB. venueC. restaurantD. graveyard33. —What if I tell the host family about the food problem?—You’d better not. You will appear as a _____ person.A. fussyB. unhealthyC. horribleD. friendly34. —What would you like to eat, sir?—Just a minute. Let me see what is on the ______ today first.A. orderB. listC. menuD. bill35. —That is ______, and we cannot be sure about changes in the future.—Yes, I can’t help worrying about it.A. excitingB. fancyC. scaryD. interesting36. Their daily diet consists of a ______ of bread, a ______ of rice and water.A. slice; bowlB. bar; pieceC. bunch; glassD. slice; cup37. —Shall we meet at the school gate at 9 o’clock ______ Saturday morning?—Fine. See you then.A. inB. onC. atD. /38. —______ do you eat take-away food?—About 3 times a week.A. WhenB. How manyC. How oftenD. What date39. In the US, we have a tradition that when you ______ the candles on your birthday cake, you should make a wish.A. turn offB. take offC. put outD. blow out40. The company ______ some coffee ______ the guests every morning, but sometimes they turn it down.A. offers; forB. provides; withC. offers; toD. provides; toIII. Close Test (1’×10)These days, many people enjoy riding bikes. But there is a lot to 41 before you buy a bike. There are many kinds of bikes. That’s why it is often good to ask a(n) 42 before you buy a bike.Different bikes are made to do different things. If you want a bike, you need to get the right kind of bike. First, ask 43 where you plan to ride it. On city streets? On mountain roads? Or both? When you decide, you can 44 the bike for your needs. Next, be sure you get the right 45 of bike for you. Professional bike stores will take time to measure(量…的尺寸大小) you. Then they will put the measurements 46 a computer. The computer will tell you a good size.You 47 need to choose other things like handlebars (把手) and a seat. And finally, you need to know 48 to ride the bike. You need to sit in a right way. You should be 49 when you ride the bike. A professional in a bike store can 50 you with these things. Then you will be ready to hit the road.41. A. think about B. hear from C. fall down D. make up42. A. teenager B. cook C. expert D. teacher43. A. myself B. yourself C. himself D. herself44. A. forget B. send C. bring D. choose45. A. size B. price C. service D. guide46. A. for B. of C. in D. as47. A. again B. also C. once D. already48. A. how B. why C. when D. where49. A. small B. angry C. traditional D. comfortable50. A. trust B. help C. mix D. useIV. Reading Comprehension.(2’x15)A. To paint the art room.B. To start a science fair.C. To visit Mr. Wayne’s class.D. To take care of the school’s garden.52.Which of the following is TRUE according to the material?A. Mr. King needs some yarn.B. School will be closed on March 16.C. There was a singing competition in Mr. Wayne’s class.D. Mrs. Mohan’s class will go to North Park Zoo by bike.53. This material is probably from ______.A. a guidebookB. a school notice boardC. a storybookD. an education magazineBThe best thing for me is my dog, Jasper. He’s a black Labrador and he’s great. I got him when I was nine. And we’ve grown up together. My uncle gave him to me for my ninth birthday. He is very cute.Ben There are lots of things I like that don’t cost anything. Let’s see….sunsets. My house is on a hill, and in the evening, there’s sometimes a beautiful sunset. It makes washing the dishes more interesting! I also love getting cards from my family.But the best thing is my son. He’s the most beautiful baby boy I’ve ever seen!MaryI think the best thing for me is playing with my little sister. Abby. She’s almost four, and I’m much older than her. I’ve also got a brother, Dominic. He’s six. But he doesn’t like the games I like, so he isn’t as much fun to play with. Abby’s always waiting for me when I come home from school. She thinks I’m the best person in the world.Laura54. Who gave Ben a dog for his 9th birthday?A. His mother.B. His father.C. His aunt.D. His uncle.55. What can we know about Mary?A. She has a lovely baby daughter.B. She enjoys a beautiful sunset every day.C. She enjoys getting cards from her family.D. She hardly ever washes the dishes at home.56. Laura thinks playing with her sister is _______.A. tiringB. interestingC. boringD. relaxingCHi Sophie,How are you? I’m fine. I hope you’re OK as well. The weather in London is great, and I’m living in a really cosy (舒适的) house with people from different countries. My best friend is called Izabela. She’s Polish and she came here five years ago. She’s a really nice person. Whenever I have a problem, she’s always there to help me. From time to time, we go out to the cinema or watch or watch a DVD together. At first, there was a bit of friction over cleaning the house. It was my fault (过错). You know, I really hate doing housework! Anyway, we solved that problem and we now get along fine. I really enjoy spending time with her. She is such a warm-hearted person.I have made a lot of friends here. In the evenings I often have people round for a meal and I like to cook them Korean food. Last night I cooked Korean noodles for some Italian friends, it was so spicy (辣的) for them that they almost cried; it was really funny! After dinner, we had a heart-to- heart talk about our dreams. It was quite an enjoyable night! I’ve also met a lovely South African man called Munyani. We sometimes go out to a library or a museum; we have a great time together. Some of my friends are going back to their countries soon, and we’ll keep in touch by email.Next month I’m going on holiday to Italy with a Japanese friend. I’ll tell you all about it when I’m back in Korea. I can’t wait to see you. I miss you so much.All for now-write back soon!57. From the letter, we can know that Izabela ______.A. is nice and helpfulB. is one of Jina’s classmatesC. went to Poland five years agoD. hated watching movies before58. What does the underlined word “friction” mean in Chinese?A. 培训B. 研究C. 摩擦D. 沟通59. How did Jina feel last night?A. Bored.B. Happy.C. Shocked.D. Luckily.60. What does Jina mainly talk about in the letter?A. What her life is like in London.B. Why she loves to stay in London.C. How she gets on with her roommates.D. What her plan is for the coming holiday.DA traveler was once staying in a village of another country. One day, she held up her camera to take pictures of the children at play. Suddenly the young ones began to shout.The traveler’s face turned red and she said sorry to the head for what she was doing, and told him she had forgotten that people in some places thought a person would lose his soul (灵魂) if his picture was taken. She explained (解释) to him the operation of a camera for a long time. Several times the head tried to say something, but he couldn’t.When she was sure she had put the head’s fear (害怕) to rest, the traveler then let him speak. With a smile, he said,“The children were trying to tell you that you forgot to take off the cap (镜头盖)!”61. The children shouted when the traveler was taking pictures of them because ______.A. they didn’t want the traveler to take any picturesB. the traveler was not doing well with her cameraC. the traveler would take their souls at onceD. the traveler forgot to take off the cap from her head62. The traveler said sorry to the head because ______.A. she had stayed in the village too longB. the children thought they would lose their camerasC. she thought the children were afraid of being taken photosD. she didn’t take a picture of the head first63. The traveler explained how to use a camera to the head because ______.A. the head wanted to learn how to take picturesB. She was afraid of the headC. She wanted the head not to worry about what she was doingD. The head was very interested in her camera64. When the head smiled, it was clear that ______.A. the traveler didn’t let him speakB. the children wanted to play with herC. he wanted the traveler to tell him the truthD. the traveler didn’t know what the children meant65. Which of the following is NOT true?A. The children wouldn’t mind if the traveler took pictures of them.B. The tra veler didn’t understand why the children shouted at first.C. The traveler knew something about people in some countries.D. The head was afraid that the traveler took pictures of the children at play.Part Two (共40分)V. Spot Dictation. (1’×5)Mario Green and Mary Brown from Riverside High School (66) several hours each week to help others.Mario loves animals and wants to be an animal (67). He volunteers at an animal hospital every Saturday morning. Mario believes it can help him to get his (68) dream job. “it’s hard work,” he says, “but I want to learn more about how to care for animals. I get such a strong (69) of satisfaction when I see the animals get better and the look of joy on their owners faces.”Marie is a book lover, she could read by herself at the age of four. Last year, she decided to try out for a volunteer after-school reading program. She still works there once a week to help kids learn to read. “The kids are sitting in the library, but you can see it in their eyes they’re going on a different journey with each new book. (70) here is a dream come true for me. I can do what ii love to do and help others at the same time.”66. ______ 67. _______ 68. ______ 69. _______ 70. _______VI. Match the words with their definitions. (1’×5)( ) 71. treatment A. the subject matter of a conversation or discussion( ) 72. telescope B. allowing different choices( ) 73. alternative C. a person related by blood or marriage( ) 74. theme D. medical attention given to a sick or injured person or animal( ) 75. relative E. an instrument with lenses that makes distant things larger and nearer when you look through VII. Fill in the blanks according to the texts. (1’×5)76. —Let’s take the ______ off the wheel.—Put the tube in this basin, Sandy.77. Now they’re eating sandwiches, cakes and ______. They’re drinking lemonade, too.78. Inside the hotel, there are two bedrooms, and a dining room for the ______.79. However, most ______ eat eggs, cheese and other dairy products, but vegans don’t.80. However, most doctors believe that fruitarians do not have a ______ diet.VIII. Fill in the blanks with the correct forms of the words given. (1’×10)81. —I am crazy about chocolate.—You’d better eat less. As we all know, chocolate is ______ (rat).82. The Prime Minister of UK, has accepted an ______ (invite) to visit the White House in June.83. Look! The boys ______ (clean) their classroom. Let’s clean ______ (we).84. The first train ______ (leave) for London at 5 a.m. every day in Winter.85. Le t’s ______ (stop) talking about the holiday and get down to study right now.86. —He has a (an) ______ (health) diet and he doesn’t exercise at all.—That’s why he is fat.87. Every December, our family go to Oxford Street to buy some gifts and some Christmas. (decorate)88. That couple always holds a little ______ (celebrate) every year on their wedding anniversary.89. They might look ______ (taste) but you probably wouldn’t want one of these on your toast in the morning. IX. Complete the sentences with correct words. The first letters have been given to you. (1’×5)90. —Some children find it difficult to talk to a______.—I think children and their parents need a good way to communicate and know each other.91. If a couple has got everything when they get m_____, what should they expect in the future?92. It’s still p_____ for her to talk about the terrible accident. It is very difficult and unpleasant for her.93. If you are lucky to have a f______ ticket for the theater, you can enjoy the play without paying for it.94. I’m totally c______ Could you explain that again?X. Sentence Patterns. (1’×10)95. There are some spoons on the table. (Change the sentences into interrogatives)96. I’d like some bread and juice for breakfast. (Change the sentences into interrogatives)97. Close the windows when you leave the classroom. (Change the sentences into interrogatives)98. There is going to be football match next week. (Change the sentences into interrogatives)99. Jenny usually spends ￡80 at weekends. (Ask a question to the underlined part)100. James and Rosie are both from Ireland. (Ask a question to the underlined part)101. He shouldn’t 101. He shouldn’t excise too much. (Ask a question to the underlined part)102. I can see a boy. He is playing basketball in the playground. (Join the two into one)103. Why not discover what you enjoy and do that? (Say it in another way)104. Bring me an old shirt to protect my clothes. (Say it in another way)。
湖北省武汉外国语学校2015-2016学年高二英语上学期期末考试试题
武汉外国语学校2015—2016学年度上学期期末考试高二英语试题第一部分：听力（共两节，满分30分）做题时，先将答案划在试卷上。
录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节（共5小题；每小题1．5分，满分7．5分）听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.What does the woman say about Peter?A.He is mad at modern art.B.He works in the art museum.C.He isn’t really interested in the exhibits.2.What does the man advise Ellen to do?A. To phone John.B. To have a walk.C. To be calm and patient.3.Where did corn grow at the earliest time?A. In Asia.B. In America.C. In Europe.4.Who is probably the man?A. A restaurant waiter.B. A hotel receptionist.C. A landlord.5.What do we know about Mr. Jensen?A. He is dead.B. He’s still in hospital.C. He is working hard.第二节（共15小题；每小题1.5分，满分22.5分）听下面5段对话或独白。
每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。
2016年武汉市九年级训练题二及参考答案
2016年中考训练题（二）听力录音稿及参考答案Text 1 Whose box on the boat is it?Text 2 What is it in your arms?Text 3 How long will you stay here?Text 4 Which is Kate’s cake?Text 5 How do you like the film?Text 6W: Do you know Kate’s sister?M: Of course. She’s nic e but too quiet.Text 7M: Not good news for me, and I’ll have to stay to do some work outside.W: You don’t really want to, do you?Text 8W: Why do you say your dong is like a cat?M: Because it plays with cats, and it is afraid of dogs.Text 9M: You said the exam was going to be this Tuesday, but Jenny said it was this Thursday.W: The head teacher told me so last week. M: Then Jenny got a wrong day.Text 10W: I hardly go to work by bus now. I’ve just moved.M: You are lucky, but I have to. It takes me one hour every day.Text 11M: What makes you always refuse to go anywhere with us?W: Well, don’t you think that everything now costs too much?Text 12W: I can’t remember John’s telephone number. Is it 85658976?M: Let me see. Well, it seems to 85658877. Oh, no, I remember it’s 85658977.Text 13M: I don’t know what to wear today. Is it going to be cold or warm?W: It looks like it’s going to rain today. you’d better take your raincoat.M: I can’t decide whether to wear my grey s uit or the brown one.W: Why don’t you wear the grey one? it’s not as heavy as the brown one. It may rain today, but itwon’t be very cold.M: All right. What are you going to wear?W: I think I’ll wear my new dress. I don’t want to wear the trousers t oday.M: But it may get dirt on if it rains.W: I will drive my car.Text 14M：Hello，Laura，this is Peter!W：Hi．Peter．What can I do for you?M：I need directions on how to get to the Capital Stadium．W：Oh，it's very simple．First，go south on Highway 25 for 5 miles until you cometo a large restaurant and continue for a few miles more and you will come right to the stadium．Thereare plenty of signs once you pass the restaurant and they will take you right to the stadium．M：Do you think the stadium will be very crowded?W：Well，the radio news says that all tickets for this game have been sold．That means you should leave about an hour before the game starts．M：Thank you very much for your help, Laura. I’ll take your advice．Text 15M: You don’t look happy, Mary. What seems to be the problem?W: I’ve got to write a long composition for my English class, and I just can’t come up with an idea.M: That shouldn’t be too difficult. Remember those pictures you were showing me last week? The ones from your trip last summer.W: Sure. I’ve got them here in some place.M: Why don’t you write about the impressions of the Great Wall in China and the horse ride you took.W: That sounds like a good idea. I can also tell them about our visit to Beijing and all of the historical places we visited.M: Well, now that you’re feeling better about this, I think I’ll be on my way. I’ve got to finish my composition, too.W: Thanks for your help, Jack. Now it seems it won’t be so difficult.Text 16Almost everyone likes dogs, and almost everyone likes reading stories about dogs. Here’s a story about a dog. I have a friend who has a large police dog named Jack. Police dogs are often very clever. Every Sunday afternoon my friend takes Jack for a long walk in the park, Jack likes the long walks in the park very much.One Sunday afternoon, a young man visited my friend. He stayed a long time. He talked and talked. Soon it was time for my friend to take Jack for his walk. But the visitor still stayed. Jack became very worried about his walk in the park. He walked around the room a few times and sat down directly in front of the visitor and looked at him. but the visitor paid no attention. He went on talking.At last, Jack could stand no longer. He went out of the room and came back a few minutes later. He sat down again in front of the visitor, but this time he held the visitor’s hat in his mouth.参考答案听力1-5 BABCA 6-10 BBCAA 11-15 CBBCB 16-20 CAACC 21-25 ABCCA单选26-30 DBDCB 31-35 DBDCC 36-40 AADCD完形填空41-45 DABAD 46-50 CDBAC 51-55 DCDAB阅读理解56-60 DDBCD 61-65 BCDDC 66-70 ADDBD71 nervous 72. compare 73. spend 74. grew up 75. worried76. rich 77. explained 78. support 79. living 80. wondering 81. owner 82. got 83. secret 84. impressed 85. personal。
武大外校2016~2017学年度上学期七年级10月月考数学试卷
武大外校2016~2017学年度上学期七年级10月月考数学试卷一、选择题（共10小题，每小题3分，共30分）1．在有理数：－(－3)、(－2)2、0、－32、－|3|、31-中，负数的个数有（ ）A ．0B ．1C ．2D ．32．下列说法：① 一个有理数不是正数就是负数；② 自然数一定是正数；③ 负分数一定是负有理数；④ 0是整数；⑤ 整数和小数统称为有理数，其中正确的个数为（ ） A ．0B ．1C ．2D ．3 3．到原点的距离小于4个单位长度的整数点有（ ） A ．7个B ．6个C ．4个D ．3个4．已知a 、b 是有理数，它们在数轴上的对应点的位置如图所示，把a 、－a 、b 、－b 按从小到大的顺序排列为（ ）A ．－b ＜－a ＜a ＜bB ．－a ＜－b ＜a ＜bC ．－b ＜a ＜－a ＜bD ．－b ＜b ＜－a ＜a5．下列各组数：① －(－5)与|－5|；② －|－3|与|－3|；③ 81与－0.125；④ 32-与23，互为相反数的是（ ） A ．①②B ．②③C ．②④D ．③④6．若－1＜a ＜0，则a 、a1、a 2三者的大小关系为（ ） A ．a ＞a1＞a 2B ．a 2＞a ＞a1C ．a1＞a ＞a 2D ．以上都不对7．若|a |＝2，|b |＝5，则a －b 的值为（ ） A ．±3B ．±7C ．±3或±7D ．3或78．观察下列等式：21＝2，22＝4，23＝8，24＝16，25＝32，26＝64，27＝128，……，通过观察，用你所发现的规律确定22016的个位数字是（ ） A ．2B ．4C ．6D ．8 9．若x ＋y ＞0，xy ＜0，x －y ＜0，则|x |与|y |的大小关系是（ ） A ．|x |＞|y |B ．|x |＜|y |C ．|x |＝|y |D ．不能确定10．如果a ＜0，b ＞0，a ＋b ＜0，那么下列关系式中正确的是（ ） A ．a ＞b ＞－b ＞－a B ．a ＞－a ＞b ＞－b C ．b ＞a ＞－b ＞－aD ．－a ＞b ＞－b ＞a二、填空题（本大题共6个小题，每小题3分，共18分） 11．计算：(－1)2＋(－1)3＋……＋(－1)2010的结果为___________12．若a 是最小的非负数，b 是相反数是最大的负整数，则a －b ＝___________13．我国“杂交水稻之父”袁隆平主持研究的某种超级杂交水稻平均亩产820千克，某地今年计划栽插这种超级杂交水稻3000亩，预计该地今年收获这种超级杂交水稻的总产量用科学记数法表示是___________14．已知A 和B 都在同一数轴上，点A 表示－3，点B 表示2，C 点到A 、B 的距离之和为6，则点C 表示的数是___________15．李明与王伟在玩一种计算的游戏，计算的规则是bc ad dc b a -=，李明轮到计算1523，根据规则1523＝3×1－2×5＝3－10＝－7．现在轮到王伟计算5632-，请你帮忙算一算，得____ 16．如果a 、b 互为相反数，c 、d 互为倒数，m 为非负数且m 的绝对值为3，那么cb a ba +++＋m－cd 的值为___________ 三、解答题（共8题，共72分）17．（本题8分）把下列各数填在相应的集合内： 5、75-、0、0.56、－3、－25.8、512、－0.0001、＋2、－600、π、∙3.0 正整数集合：{ …}；负整数集合：{ …} 正分数集合：{ …}；负分数集合：{ …}18．（本题8分）比较下列各组数的大小(1) －|＋0.75|与|53|-- (2) －34与(－4)319．（本题8分）计算：(1) 4.7－(－8.9)－7.5＋(－6) (2) －32×(－2)＋42÷(－2)3－|－22|20．（本题8分）(1) 已知a 是－3的相反数与－12的绝对值的差，b 是比－7大5的数，c 是比4小8的数，求a ＋b －c 的值(2) 若|x ＋4|与(y －2)2互为相反数，求(－x )y ＋1的值21．（本题8分）一辆汽车沿着一条南北方向的公路来回行驶，某一天早晨从A 地出发，晚上到达B 地．约定向北为正，向南为负，当天记录如下（单位：千米）： －18.3、－9.5、＋7.1、－14、－6.2、＋13、－6.8、－8.5 (1) 问B 地在A 地何处，相距多少千米？(2) 若汽车行驶每千米耗油0.2升，那么这一天共耗油多少升？（精确到0.1）22．（本题10分）(1) 若|a |＝2，|b |＝3，且a ＋b ＜0，求a －b 的值 (2) 已知|a |＝4，|2b －1|＝5，且a ＜b ，求a ＋b 的值(3) 已知a 、b 、c 为有理数，|a |＝5，b 2＝4，(c －1)2＝9且ab ＞0，bc ＜0，求式子ab －bc －ca 的值23．（本题10分）有理数a 、b 、c 在数轴上的位置，如图 (1) 请直接指出a 、|b |、c 的大小关系（用“＜”连接） (2) 若m ＝|a ＋b |－|b －1|－|a －c |，求1－2016(m ＋c )3的值 (3) 若a ＝－2，b ＝－3，c ＝32，且a 、b 、c 对应的点分别为A 、B 、C ，点P 是数轴上的一动点．设点P 表示的数为x ，问：在数轴上是否存在点P ，使P 与A 的距离是P 与C 的距离的3倍？若存在，请求出动点P 所对应的有理数x 的值；若不存在，请说明理由24．（本题12分）如图1，已知数轴上有三点A 、B 、C ，AC ＝2AB ，点A 对应的数为400 (1) 若AB ＝600，求点C 到原点的距离(2) 在(1)的条件下，动点P 、Q 、R 分别从C 、A 同时出发，其中P 、Q 向右运动，R 向左运动．如图2，已知点Q 的速度是点R 的速度的2倍少5个单位长度/秒，点P 的速度是点R 的速度的3倍，经过20秒，点P 、Q 之间的距离与点Q 、R 之间的距离相等，求动点Q 的运动速度 (3) 在(1)的条件下，O 表示原点，动点P 、T 、R 分别从C 、O 、A 同时出发，其中P 、T 向左运动，R 向右运动．如图3，点P 、T 、R 的速度分别为20个单位长度/秒、4个单位长度/秒、10个单位长度/秒，在运动过程中，如果点M 为线段PT 的中点，点N 为线段OR 的中点，那么MNOTPR 的值是否发生变化？若不变，求其值；若变化，说明理由。
湖北省武汉外校下学期期中考试七年级英语试题(无答案,无听力部分)
2016-2017学年度下学期期中考试七年级英语试题II. Multiple Choice. (1×15’)26. —I came first in the long jump.—______. I’m so proud of you.A. Good luckB. Have funC. Well doneD. You’re joking27. —Daddy, can you come home for supper with us this weekend?—______, but I might be a little late.A. I’m busyB. Hard to sayC. Of courseD. Never mind28. Look! The boy ______ blue jeans ______ a bicycle.A. in; is ridingB. in; rideC. on; ridingD. on; is riding29. How many ______ are there in the box?A. packets of sweetB. packet of sweetC. packet of sweetsD. packets of sweets30. —Can I have 450 grams of cheese?—I’m sorry, but there ______ cheese.A. isn’t anyB. aren’t anyC. isn’t someD. aren’t some31. Miss Grey always ______ her car to school, but now she ______ to school.A. drive; walkB. drives; walksC. is driving; is walkingD. drives; is walking32. The International Convention Centre is the ______ for a three-day arts festival.A. ceremonyB. venueC. restaurantD. graveyard33. —What if I tell the host family about the food problem?—You’d better not. You will appear as a _____ person.A. fussyB. unhealthyC. horribleD. friendly34. —What would you like to eat, sir?—Just a minute. Let me see what is on the ______ today first.A. orderB. listC. menuD. bill35. —That is ______, and we cannot be sure about changes in the future.—Yes, I can’t help worrying about it.A. excitingB. fancyC. scaryD. interesting36. Their daily diet consists of a ______ of bread, a ______ of rice and water.A. slice; bowlB. bar; pieceC. bunch; glassD. slice; cup37. —Shall we meet at the school gate at 9 o’clock ______ Saturday morning?—Fine. See you then.A. inB. onC. atD. /38. —______ do you eat take-away food?—About 3 times a week.A. WhenB. How manyC. How oftenD. What date39. In the US, we have a tradition that when you ______ the candles on your birthday cake, you should make a wish.A. turn offB. take offC. put outD. blow out40. The company ______ some coffee ______ the guests every morning, but sometimes they turn it down.A. offers; forB. provides; withC. offers; toD. provides; toIII. Close Test (1’×10)These days, many people enjoy riding bikes. But there is a lot to 41 before you buy a bike. There are many kinds of bikes. That’s why it is often good to ask a(n) 42 before you buy a bike.Different bikes are made to do different things. If you want a bike, you need to get the right kind of bike. First, ask 43 where you plan to ride it. On city streets? On mountain roads? Or both? When you decide, you can 44 the bike for your needs. Next, be sure you get the right 45 of bike for you. Professional bike stores will take time to measure (量…...的尺寸大小) you. Then they will put the measurements 46 a computer. The computer will tell you a good size.You 47 need to choose other things like handlebars (把手) and a seat. And finally, you need to know 48 to ride the bike. You need to sit in a right way. You should be 49 when you ride the bike. A professional in a bike store can 50 you with these things. Then you will be ready to hit the road.41. A. think about B. hear from C. fall down D. make up42. A. teenager B. cook C. expert D. teacher43. A. myself B. yourself C. himself D. herself44. A. forget B. send C. bring D. choose45. A. size B. price C. service D. guide46. A. for B. of C. in D. as47. A. again B. also C. once D. already48. A. how B. why C. when D. where49. A. small B. angry C. traditional D. comfortable50. A. trust B. help C. mix D. useIV. Reading Comprehension.(2’x15)51. What does Jan Lee want to do?A. To paint the art room.B. To start a science fair.C. To visit Mr. Wayne’s class.D. To take care of the school’s garden.52.Which of the following is TRUE according to the material?A. Mr. King needs some yarn.B. School will be closed on March 16.C. There was a singing competition in Mr. Wayne’s class.D. Mrs. Mohan’s class will go to North Park Zoo by bike.53. This material is probably from ______.A. a guidebookB. a school notice boardC. a storybookD. an education magazineBThe best thing for me is my dog, Jasper. He’s a black Labrador and he’s great. I got him when I was nine. And we’ve grown up together. My uncle gave him to me for my ninth birthday. He is very cute.Ben There are lots of things I like that don’t cost anything. Let’s see….sunsets. My house is on a hill, and in the evening, there’s sometimes a beautiful sunset. It makes washing the dishes more interesting! I also love getting cards from my family. But the best thing is my son. He’s the most beautiful baby boy I’ve ever seen!MaryI think the best thing for me is playing with my little sister. Abby. She’s almost four, and I’m much older than her. I’ve also got a brother, Dominic. He’s six. But he doesn’t like the games I like, so he isn’t as much fun to play with. Abby’s always waiting for me when I come home from school. She thinks I’m the best person in the world.Laura54. Who gave Ben a dog for his 9th birthday?A. His mother.B. His father.C. His aunt.D. His uncle.55. What can we know about Mary?A. She has a lovely baby daughter.B. She enjoys a beautiful sunset every day.C. She enjoys getting cards from her family.D. She hardly ever washes the dishes at home.56. Laura thinks playing with her sister is _______.A. tiringB. interestingC. boringD. relaxingCHi Sophie,How are you? I’m fine. I hope you’re OK as well. The weather in London is great, and I’m living in a really cosy (舒适的) house with people from different countries. My best friend is called Izabela. She’s Polish and she came here five years ago. She’s a really nice person. Whenever I have a problem, she’s always there to help me. From time to time, we go out to the cinema or watch or watch a DVD together. At first, there was a bit of friction over cleaning the house. It was my fault (过错). You know, I really hate doing housework! Anyway, we solved that problem and we now get along fine. I really enjoy spending time with her. She is such a warm-hearted person.I have made a lot of friends here. In the evenings I often have people round for a meal and I like to cook them Korean food. Last night I cooked Korean noodles for some Italian friends, it was so spicy (辣的) for them that they almost cried; it was really funny! After dinner, we had aheart-to- heart talk about our dreams. It was quite an enjoyable night! I’ve also met a lovely South African man called Munyani. We sometimes go out to a library or a museum; we have a great time together. Some of my friends are going back to their countries soon, and we’ll keep in touch by email.Next month I’m going on holiday to Italy with a Japanese friend. I’ll tell you all about it when I’m back in Korea. I can’t wait to see you. I miss you so much.All for now-write back soon!57. From the letter, we can know that Izabela ______.A. is nice and helpfulB. is one of Jina’s classmatesC. went to Poland five years agoD. hated watching movies before58. What does the underlined word “friction” mean in Chinese?A. 培训B. 研究C. 摩擦D. 沟通59. How did Jina feel last night?A. Bored.B. Happy.C. Shocked.D. Luckily.60. What does Jina mainly talk about in the letter?A. What her life is like in London.B. Why she loves to stay in London.C. How she gets on with her roommates.D. What her plan is for the coming holiday.DA traveler was once staying in a village of another country. One day, she held up her camera to take pictures of the children at play. Suddenly the young ones began to shout.The traveler’s face turned red and she said sorry to the head for what she was doing, and told him she had forgotten that people in some places thought a person would lose his soul (灵魂) if his picture was taken. She explained (解释) to him the operation of a camera for a long time. Several times the head tried to say something, but he couldn’t.When she was sure she had put the head’s fear (害怕) to rest, the traveler then let him speak. With a smile, he said, “The children were trying to tell you that you forgot to take off the cap (镜头盖)!”61. The children shouted when the traveler was taking pictures of them because ______.A. they didn’t want the traveler to take any picturesB. the traveler was not doing well with her cameraC. the traveler would take their souls at onceD. the traveler forgot to take off the cap from her head62. The traveler said sorry to the head because ______.A. she had stayed in the village too longB. the children thought they would lose their camerasC. she thought the children were afraid of being taken photosD. she didn’t take a picture of the head first63. The traveler explained how to use a camera to the head because ______.A. the head wanted to learn how to take picturesB. She was afraid of the headC. She wanted the head not to worry about what she was doingD. The head was very interested in her camera64. When the head smiled, it was clear that ______.A. the traveler didn’t let him speakB. the children wanted to play with herC. he wanted the traveler to tell him the truthD. the traveler didn’t know what the children meant65. Which of the following is NOT true?A. The children wouldn’t mind if the traveler took pictures of them.B. The tra veler didn’t understand why the children shouted at first.C. The traveler knew something about people in some countries.D. The head was afraid that the traveler took pictures of the children at play.Part Two (共40分)V. Spot Dictation. (1’×5)Mario Green and Mary Brown from Riverside High School (66) several hours each week to help others.Mario loves animals and wants to be an animal (67). He volunteers at an animal hospital every Saturday morning. Mario believes it can help him to get his (68) dream job. “it’s hard work,” he says, “but I want to learn more about how to care for animals. I get such a strong (69) of satisfaction when I see the animals get better and the look of joy on their owners faces.”Marie is a book lover, she could read by herself at the age of four. Last year, she decided to try out for a volunteer after-school reading program. She still works there once a week to help kids learn to read. “The kids are sitting in the library, but you can see it in their eyes they’re going on a different journey with each new book. (70) here is a dream come true for me. I can do what ii love to do and help others at the same time.”66. ______ 67. _______ 68. ______ 69. _______ 70. _______VI. Match the words with their definitions. (1’×5)( ) 71. treatment A. the subject matter of a conversation or discussion( ) 72. telescope B. allowing different choices( ) 73. alternative C. a person related by blood or marriage( ) 74. theme D. medical attention given to a sick or injured person or animal( ) 75. relative E. an instrument with lenses that makes distant things larger and nearer when you look throughVII. Fill in the blanks according to the texts. (1’×5)76. —Let’s take the ______ off the wheel.—Put the tube in this basin, Sandy.77. Now they’re eating sandwiches, cakes and ______. They’re drinking lemonade, too.78. Inside the hotel, there are two bedrooms, and a dining room for the ______.79. However, most ______ eat eggs, cheese and other dairy products, but vegans don’t.80. However, most doctors believe that fruitarians do not have a ______ diet.VIII. Fill in the blanks with the correct forms of the words given. (1’×10)81. —I am crazy about chocolate.—You’d better eat less. As we all know, chocolate is ______ (rat).82. The Prime Minister of UK, has accepted an ______ (invite) to visit the White House in June.83. Look! The boys ______ (clean) their classroom. Let’s clean ______ (we).84. The first train ______ (leave) for London at 5 a.m. every day in Winter.85. Le t’s ______ (stop) talking about the holiday and get down to study right now.86. —He has a (an) ______ (health) diet and he doesn’t exercise at all.—That’s why he is fat.87. Every December, our family go to Oxford Street to buy some gifts and some Christmas. (decorate)88. That couple always holds a little ______ (celebrate) every year on their wedding anniversary.89. They might look ______ (taste) but you probably wouldn’t want one of these on your toast in the morning.IX. Complete the sentences with correct words. The first letters have been given to you. (1’×5) 90. —Some children find it difficult to talk to a______.—I think children and their parents need a good way to communicate and know each other.91. If a couple has got everything when they get m_____, what should they expect in the future?92. It’s still p_____ for her to talk about the terrible accident. It is very difficult and unpleasant for her.93. If you are lucky to have a f______ ticket for the theater, you can enjoy the play without paying for it.94. I’m totally c______ Could you explain that again?X. Sentence Patterns. (1’×10)95. There are some spoons on the table. (Change the sentences into interrogatives)96. I’d like some bread and juice for breakfast. (Change the sentences into interrogatives)97. Close the windows when you leave the classroom. (Change the sentences into interrogatives)98. There is going to be football match next week. (Change the sentences into interrogatives)99. Jenny usually spends ￡80 at weekends. (Ask a question to the underlined part)100. James and Rosie are both from Ireland. (Ask a question to the underlined part)101. He shouldn’t 101. He shouldn’t excise too much. (Ask a question to the underlined part) 102. I can see a boy. He is playing basketball in the playground. (Join the two into one)103. Why not discover what you enjoy and do that? (Say it in another way)104. Bring me an old shirt to protect my clothes. (Say it in another way)。
武汉外校2015~2016学年度上学期初中二年级期中考试数学试题(word版有答案)
祁家湾中学2015~2016学年度上学期初八年级数学练习（6）一、选择题（共10小题，每小题3分，共30分） 1．下列图形中，不是轴对称图形的是（ ）2．△ABC 中BC 边上的高作法正确的是（ ）3．已知三角形两边长分别为3和8，则该三角形第三边长可能是（ ） A ．5B ．10C ．11D ．124．下列判断中错误的是（ ）A ．有两角和其中一个角的对边对应相等的两个三角形全等B ．有一边相等的两个等边三角形全等C ．有两边和一角对应相等的两个三角形全等D ．有两边和其中一边上的中线对应相等的两个三角形全等5．若三角形的一个角等于其他两个角的差，则这个三角形一定是（ ） A ．等腰三角形 B ．锐角三角形 C ．钝角三角形 D ．直角三角形 6．如图，△ABC 中，∠C ＝70°，若沿图中虚线截去∠C ，则∠1＋∠2＝（ ）A ．360°B ．250°C ．180°D ．140°7．如图，O 是△ABC 的∠ABC 、∠ACB 的平分线的交点，OD ∥AB 交BC 于D ，OE ∥AC 交BC 于E ．若△ODE 的周长为10厘米，那么BC 的长为（ ） A ．8 cmB ．9 cmC ．10 cmD ．11 cm8．如图是由九个等边三角形组成的一个六边形，当最小的等边三角形边长为2 cm 时，这个六边形的周长为（ ）cm A ．30B ．40C ．50D ．609．如图，在四边形ABCD 中，对角线AC 平分∠BAD ，AB ＞AD ，下列结论正确的是（ ） A ．AB －AD ＞|CB －CD | B ．AB －AD ＝|CB －CD |C ．AB －AD ＜|CB －CD |D ．AB －AD 与|CB －CD | 的大小关系不确定10．如图，已知四边形ABCD 中，对角线BD 平分∠ABC ，∠ACB ＝72°，∠ABC ＝50°，并且∠BAD ＋∠CAD ＝180，那么ADC 的度数为（ ） A ．62° B ．65° C ．68° D ．70°二、填空题（本大题共6个小题，每小题3分，共18分）11．若正n 边形的每个内角都等于150°，则n ＝_________，其内角和为_________12．如图，△ABC 中，∠C ＝90°，AD 平分∠BAC ，AB ＝5，CD ＝2，则△ABD 的面积是_________13．如图，等腰△ABC 中，AB ＝AC ，∠DBC ＝15°，AB 的垂直平分线MN 交AC 于点D ，则∠A 的度数是_________14．如图，等腰三角形ABC 底边BC 的长为4 cm ，面积是12 cm 2，腰AB 的垂直平分线分别交AB 、AC 于点E 、F ．若D 为BC 边上的中点，M 为线段EF 上一动点，则△BDM 的周长最短为_________cm 15．如图，在第1个△A 1BC 中，∠B ＝30°，A 1B ＝CB ；在边A 1B 上任取一点D ，延长CA 1到A 2，使A 1A 2＝A 1D ，得到第2个△A 1A 2D ；在边A 2D 上任取一点E ，延长A 1A 2到A 3，使A 2A 3＝A 2E ，得到第3个△A 2A 3E ；……，按此做法继续下去，则第n 个三角形中以A n 为顶点的内角度数是_________ 16．△ABC 为等边三角形，在平面内找一点P ，使△P AB 、△PBC 、 △P AC 均为等腰三角形，则这样的点P 的个数为_________ 三、解答题（共8题，共72分）17．（本题8分）如图，点F 、C 在BE 上，BF ＝CE ，AB ＝DE ，∠B ＝∠E ，求证：∠A ＝∠D18．（本题8分）如图在△ABC 中，∠C ＝∠ABC ＝2∠A ，BD 是边AC 上的高，求∠DBC 度数19．（本题8分）如图，已知△ABC的三个顶点的坐标分别为A(－2，3)、B(－6，0)、C(－1，0)(1)将△ABC向右平移5个单位，再向下平移4个单位得△A1B1C1，(2)图中画出，平移后点A的对应点A1的坐标是__________(3)将△ABC沿x轴翻折得△A2BC，图中画出△A2BC，翻折后点A对应点A2坐标是__________(3) 将△ABC向左平移2个单位，则△ABC扫过的面积为__________20．（本题8分）已知：如图，在△ABC中，点D是BC中点，过点D作直线交AB、CA的延长线于点E、F．当BE＝CF时，求证：AE＝AF21．（本题8分）如图，在平面直角坐标系中，点A在第二象限且纵坐标为1，点B在x轴的负半轴上，AB＝AO，∠ABO＝30°．直线MN经过原点O，点A关于直线MN的对称点A1在x轴的正半轴上，点B关于直线MN的对称点为B1。
七年级上册语文周测二试卷及答案
七年级上册语文周练二班级：学号：姓名：分数:__________一、基础（40分）1.根据课文默写古诗文。
（16分）古往今来,多少仁人志士漂泊在外，身不由己，但亲友之思、家国之情却是他们心灵纽带的寄托，是心中思念开出的绚烂之花。
离友人越远，思念就越深，李白《峨眉山月歌》中：“夜发清溪向三峡，”亦如是；游子远离家乡，黄昏之时，思乡之悲情难耐，马致远《天净沙·秋思》“，断肠人在天涯”亦如是。
心系祖国和平，同情忧患的人民，正如岑参《行军九日思长安故园》的“，。
”年老病衰之时竟又能与故人重逢，是多么令人动人之事，正如杜甫的《江南逢李龟年》“，。
”夜风送来凄凉幽怨的芦笛声，徒然唤醒了“征人”浓浓的思乡之情，恰如李益《夜上受降城闻笛》“回乐烽前沙似雪，受降城外月如霜。
，。
”2. 根据拼音写出相应的词语。
(6分)春，是一拱彰显生命神奇的画廊，是一桢染着生命之色的画布。
春来了，我轻轻地嗅着娇嫩的花叶，抚摸着那些为迎接春天而jiao mei（）的花朵。
远处的荒原，曾经rén jì hǎn zhì（），如今花开满园，红杏出墙，引来了一群天真烂漫的顽童，他们正xiǎo xīn yì yì（）地跃过荆棘地，寻找着花间翩翩起舞的浅黄色蝴蝶，欢乐至极。
3. 小明顺利地考上了理想的大学。
对此，下列表达不得体．．．的—项是( )(6分)A. 小明发微信给老师“老师：我考上大学了，感谢恩师多年栽培。
”B. 小明父亲发短信向亲朋报喜“犬子顺利考上大学，多谢大家关心！”C. 小明对前来祝贺的李叔叔说：“叔叔，您的到来使我家蓬荜生辉”D. 好朋友王勇对小明说：“恭喜你，改天我一定莅临你家当面祝贺。
”4. 下列句子没有．．语病的一项( )(6分)A. 作为中学生，我们应该提高读书的好习惯。
B. 我们只有继承和发扬长征精神，就能把新时代的长征之路走得坚定，走得稳健。
C. 中国梦不仅在国际社会产生强烈的反响，而且在国内引发强烈共鸣。
周练二(电阻及变阻器)
周练二测试内容：电阻，变阻器1、知道电阻的概念、单位及换算、电路图符号。
2、理解决定电阻大小的因素，知道滑动变阻器的构造，在电路中的符号，理解滑动变阻器的作用，会把滑动变阻器接入电路以改变电路的电流，知道变阻箱的读数方法。
一、选择题（每小题3分共30分）1．粗细相同的铜、铝两根导线，当温度相同时，它们的电阻相同，则（）A．铜钱比铝线长B．铝线比铜线长C．铜铝两根导线长度相同D．无法判断2.如图1所示，用导线把灯泡、电池和四种物品分别相连，灯泡一定不发光的是3．一根铜导线和一根镍铬合金线，它们的粗细、长短都相等。
把它们并联到电路中则（）A．铜导线两端的电压大B．两根导线两端的电压相等C．铜导线的电阻小D．镍铬合金线两端的电压大4．有几位同学拿来一个滑动变阻器，看到铭牌上标有“20 Ω 1 A”的字样，这几位同学讨论时说出了以下几种对铭牌意义的理解，你认为正确的是A.电阻的最小值是20 Ω，允许通过的最大电流是1 AB.电阻的最小值是20 Ω，允许通过的最小电流是1 AC.电阻的最大值是20 Ω，允许通过的最大电流是1 AD.电阻的最大值是20 Ω，允许通过的最小电流是1 A5.如图所示的四种电路中，当S闭合后，不能调节小灯亮度的是（）A B C D6.关于白炽灯丝的电阻，下列说法中不正确的是 （ ）A 、灯丝发光时电阻大些B 、灯丝不工作时电阻为零C 、灯丝重新搭上后电阻减小D 、灯丝不工作时电阻较小7．在做电学实验时，把滑动变阻器接入电路中，用来改变电流，如图6所示，A 、B 、C 、D 是四个实验小组将滑动变阻器接入电路的方法，这四种接法中，能够立即闭合开关进行实验的是（ ）8. 实验用的导线（每根）阻值和小灯泡阻值大约分别为（ ）A ． 0.005Ω 0.5ΩB ．100Ω 500ΩC ．0.05Ω 500ΩD ．0.05Ω 50Ω 9．用实验研究导体的材料、长度、横截面积对电阻的影响时，供选择的导体规格如下表：A ．③ ④ ⑤ ⑥B 、② ③ ⑥ ⑦C 、 ① ⑤ ⑥ ⑦D 、⑤ ⑥ ⑦ ⑧ 10.给你两根长度相同但横截面积不同的镍铬合金线、一个电源、一只电流表、一只滑动变阻器、一个开关、若干根导线，现需要研究的课题有：①导体的电阻跟它的横截面积的关系；②导体的电阻跟它的长度的关系；③导体的电阻跟它的材料的关系。
武汉外校2016~2017学年度下学期期中考试七年级数学试卷(word版有答案)
2016~2017下学期武汉外国语学校初中一年级期中考试数学试题一、选择题（共10小题，每小题3分，共30分）1．下列各数中，是有理数的是（ ）AB． C ．π D ．132．如图，已知AB ∥CD ，直线EF 分别交AB 、CD 于点E 、点F ，且EG 平分∠BEF ，若∠1=50°，则∠2的度数为（ ）A ．50°B ．60°C ．65°D ．70°21G AD C FB E3．下列方程组中是二元一次方程组的是（ ）A ．4677814x y x z +=⎧⎨+=⎩B ．241312y x x y ⎧+=⎪⎪⎨⎪-=⎪⎩C ．1230xy x y =⎧⎨+=⎩D ．562422x y x y ⎧+=⎪⎪⎨⎪+=⎪⎩ 4．下列命题中，真命题是（ ）A ．相等的角是对顶角B ．同旁内角互补C ．平行于同一条直线的两条直线互相平行D ．垂直于同一条直线的两条直线互相垂直5．线段CD 是由线段AB 平移得到的，点A （－1，4）的对应点为C （4，7），则点B （－4，－1）的对应点D 的坐标为（ ）A ．（2，9）B ．（5，3）C ．（1，2）D ．（－9，－4）6．方程2x +3y =8的正整数解的个数是（ ）A ．4B ．3C ．2D ．17．如图，直线AB 、CD 相交于点O ，OE ⊥CD ，OF ⊥AB ，图中与∠2互补的角共有（ ）A ．0个B ．1个C ．2个D ．3个A DCFBE O 128．我国民间流传这样一道题：只闻隔壁人分银，不知多少银和人；每人7两多7两，每人半斤少半斤．设有x 人、y 两银（古代1斤等于16两），则所列方程组正确的是（ ）A ．7788x y x y +=⎧⎨+=⎩B ．7788x y x y +=⎧⎨-=⎩C ．7788x y x y -=⎧⎨+=⎩D ．7788x y x y-=⎧⎨-=⎩ 9．如图，AB ∥CD ，则∠1、∠2、∠3、∠4的关系是（ ）A ．∠1－∠2+∠3+∠4=180°B ．∠1+∠2+∠3=∠4C ．∠1+∠2－∠3+∠4=180°D ．无法确定1234ADC F B E10．四条直线两两相交且任意三条直线不相交于同一点，则这四条线共可构成内错角有（ ）A ．48对B ．24对C ．16对D ．12对二、填空题（本大题共6个小题，每小题3分，共18分）11=________．123x -，则x 的取值范围是___________．13．将一张长方形纸条ABCD 沿EF 折叠后，ED 与BF 交于G 点，若∠EFG =58°，则∠BGE 的度数为__________．GA DCF B E MN14．∠1的两边垂直于∠2的两边，且∠1比∠2的32倍少70°，则∠1的度数是________． 15．已知非零实数a 、b 满足丨2a －4丨+丨b +2丨+4=2a ，则a +b 等于_______．16．已知1a ，2a ，3a ，4a ，5a 是满足条件1a +2a +3a +4a +5a =9的五个不同的整数，若b 是关于x 的方程（x －1a ）（x －2a ）（x －3a ）（x －4a ）（x －5a ）=2009的整数根，则b 的值为__________．三、解答题（共8题，共72分）17．（本题7分）完成下面的推理填空如图，E 、F 分别在AB 和CD 上，∠1=∠D ，∠2与∠C 互余，AF ⊥CE 于G ，求证：AB ∥CD ． 证明：∵AF ⊥CE ∴∠CGF =90°（垂直的定义）∵∠1=∠D （已知）∴_________∥_________（ ）∴∠4=___________=90°（ ）又∵∠2与∠C 互余（已知），∠2+∠3+∠4=180°∴∠2+∠C =∠2+________=90°∴∠C =_________∴AB ∥CD （ ）G ADC F BE 123418．计算（本题6分）（1（2）1)219．（本题12分）解二元一次方程组：（1）21325x y x y +=-⎧⎨-=-⎩ （2）231734121623x y x y ⎧+=⎪⎪⎨⎪-=-⎪⎩ （3）35()3634()36x x y y x y ++=⎧⎨++=⎩ （4）322511431232254525x y x y x y x y --⎧+=⎪⎪⎨--⎪-=-⎪⎩ 20．（本题6分）已知M=m +3的算术平方根，N=24m n -n －2的立方根，试求M －N 的值．21．（本题7分）如图，在平面直角坐标系xOy 中，△ABC 三个顶点的坐标分别为A （－5，1），B （－4，4），C （－1，－1）．将△ABC 向右平移5个单位长度，再向下平移4个单位长度，得到△'''A B C ，其中点'A ，'B ，'C 分别为点A ，B ，C 的对应点．（1）请在所给坐标系中画出△'''A B C ，并直接写出点'C 的坐标；（2）若AB 边上一点P 经过上述平移后的对应点为'P （x ，y ），用含x ，y 的式子表示点P 的坐标；（直接写出结果即可）（3）求△'''A B C 的面积22．（本题6分）如图，AF ∥DE ，B 为AF 上一点，∠ABC =60°，交ED 于C ，CM 平分∠BCE ，∠MCN =90° （1）求∠DCN 的度数（2）若∠CBF 的平分线交CN 于N ，求证：BN ∥CMF AD CB E M N23．（本题6分）列方程（组）解应用题打折前，买60件A 商品和30件B 商品用了1080元，买50件A 商品和10件B 商品用了840元. 打折后，买500件A 商品和500件B 商品用了9600元，比不打折少花费多少钱？24．（本题10分）如图，在△ABC 中，点D 是AC 延长线上的一点，过点D 作DE ∥BC ，DG 平分∠ADE ，BG 平分∠ABC ，DG 与BG 交于点G ．（1）证明：∠A =∠ACF －∠ABC ；（2）如图1，若∠A =50°，求∠G 的度数；（3）如图2，连接FE ，若∠DFE =12∠ABC +∠G ，求证：FE ∥AD ． HG ADCF B E图1图2E B F C D A H 25．（本题12分）在平面直角坐标系中，A （a ，b ）、B （c ，d ）4b d --=0（1）如果a =－1，b =－3，求：A 、B 两点的坐标．（2）如果a =－1，b =－3，求直线AB 与x 轴交点M 以及与y 轴交点N 的坐标．（3）如果点A 在x 轴上方平行于x 轴且到x 轴距离等于2的直线上运动，若△ABO 面积≤21，求a 的取值范围．。
武汉外国语学校初中英语七年级上册Unit 2经典练习(培优)
一、选择题1．-Who are they?- ____________ .A．They are my friends B．She is my friendC．Those are my friends D．These are my friends A解析：A【详解】句意“-他们是谁？-他们是我的朋友”。
A.他们是我的朋友；B.她是我的朋友；C.那些是我的朋友；D.这些是我的朋友。
根据问句"Who are they?"“他们是谁？”，答语应为"They are…"。
故选A。
2．“Is she a student?” “Yes, ______.”A．she B．she is C．it is B解析：B【详解】句意：——她是一个学生吗？——是的，她是。
考查一般疑问句及其回答。
本句是“主系表”结构，主语和系词分别是she和is，其一般疑问句的回答也需用she和is的相关形式。
根据句意语境，可知选B。
3．______ a pen on the desk.A．Here are B．Here is C．Here be B解析：B【详解】句意：桌子上有一支钢笔。
考查here be结构。
here be结构遵循就近原则，a pens 单数形式，系词需用is。
根据句意语境，可知选B。
4．Lie lost his key'. It made him ____________ in the cold to wait for his wife's return.A．to stay B．stayedC．stay D．stays C解析：C【解析】句意：Lie丢了他的钥匙，这使他呆在冷风中等着他妻子的回来。
短语make sb do sth使某人做某事；其被动形式是：sb be made to do ，这里要加上to，这里句子是主动形式。
故选C。
5．Everyone in my family music.A．enjoys listening B．enjoys listening to C．enjoy listening to D．enjoy listening B解析：B【详解】句意：我家里的每个人都喜欢听音乐。
武汉外国语学校初中英语七年级上册Starter Unit 2提高练习(含答案)
一、选择题1．—What's this in English,Maria?—It's _______map.A．a B．an C．the A解析：A【解析】句意：----这个用英语怎么说，玛丽亚？-----这是一张地图。
考查不定冠词。
A/an一个，泛指，用在可数名词单数前，a用在辅音因素开头的名词前，an用在元音开头的名词前；the 这，那，这些，那些，特指。
Map可数名词单数，辅音因素开头，一幅地图是a map；结合句意和语境可知选A。
2．“I”和“O”是______。
A．元音B．辅音C．元音字母C解析：C【解析】试题分析：英语中有五个元音字母，他们是AEIOU，I和O是两个元音字母，故选C。
考点：元音字母。
3．你想知道这个是什么？你应当问________A．Hi，what's this?B．Hello, what's your name?C．Nice to meet you.A解析：A【解析】试题分析：Hi, what’s this?你好，这是什么？Hello, what’s your name?你好，你叫什么名字？Nice to meet you.见到你很高兴。
根据题意可知应选A。
考点：情景对话。
4．（题文） This is _______nice jacket.A．an B．a C．/B解析：B【解析】试题分析：句意：这是一件漂亮的夹克衫。
a 和an都是不定冠词，修饰可数名词单数形式，表示泛指一个…，an用于元音发音开头的单词前。
空后的nice是辅音开头的，故用a 修饰，选B。
考点：考查冠词。
5．选择与其他三项音素不同的一项。
A．O B．AC．K D．H A解析：A【解析】试题分析：在A、K和H三个字母中，都含有音素/ei/，而O中的音素是/əʊ/，故选A。
考点：考查字母的读音。
6．What's this _______ EnglishA．in B．for C．on A解析：A【详解】句意：这个用英语怎么说？考查介词辨析。
湖北武汉外国语学校人教版初中英语七年级上册期末练习(课后培优)
考试范围：xxx；满分：***分；考试时间：100分钟；命题人：xxx 学校：__________ 姓名：__________ 班级：__________ 考号：__________一、选择题1．—What about ________ soccer?—That ________ great.A．play; sounds B．playing; sounds C．playing; sound D．play; sound 2．Children’s Day is on _____________.A．May 1st B．June 1st C．July 1st D．August 1st3．--- I'm very tired. What can I do?--- ___________listening to music?A．Why not B．Why do you C．What about D．Why don't you4．--- Can you meet me ________ Friday afternoon?--- Sure. I’ll be _______ then.A．in; busy B．on; busy C．in; free D．on; free5．_____ is after September.A．October B．November C．August D．December6．---What music __________your sister like?---Sorry, I don’t know.A．is B．are C．has D．does7．---__________Jim and Sam’s father go home late?---Yes, he __________.A．Does, goes B．Is, is C．Do, does D．Does, does 8．This is a __________ store.A．sport B．clothes C．books D．Ms. Cool’s9．He likes __________ cakes, but I don't want __________ them.A．to eat, eat B．eat, eat C．eating, eating D．eating, to eat 10．---Thanks for your help.---__________A．That’s right.B．You are welcome. C．Don’t say that, please.D．The same to you. 11．When you attend ______ class, you go to have it.A．a B．an C．the D．不填12．--- Happy birthday, Alice!--- ______________, Bill.A．Thank you B．Good idea C．OK. D．I will13．—Is this your pencil?—Yes, ________. It’s ________.A．It is; my B．It isn’t;my C．it’s; mine D．it is; mine14．I have ________volleyball. Let's play ________volleyball.A．the; a B．a; a C．the;the D．a; /15．—Can I help you?—________.A．Yes, I’m fine C．No, I only sell T-shirtB．No, I don’t need your help D．Yes, please, I need a hat16．________ is the second month of a year.A．January B．April C．February D．March 17．We have meat and vegetables _______lunch.A．in B．on C．with D．for 18．—_______ everyone in your family like Mid-Autumn Day?—Yes, of course.A．Do B．Does C．Is D．Are 19．The shop _______at 8：00 a. m. and it _______for ten hours every day.A．is open; opens B．opens; opensC．opens; is open D．is open, is open20．Amy has to _______a big dinner this evening. She looks great in a white blouse. A．wait for B．look for C．be fit for D．go for 21．This pair of _______mine．They are nice．A．shoe is B．shoes are C．shoes is D．shoe are 22．Tom isn't from ____but he can speck very good____．A．China；China B．Chinese；ChinaC．Chinese；Chinese D．China；Chinese23．—Jack, is this ______ eraser?—No, it isn’t. ______ is in the pencil case.A．your; My B．your; Mine C．yours; My D．yours; Mine 24．Be quiet, boys and girls. It’s time for class. _______ Unit 3 in your book. A．Watch B．See C．Look D．Look at 25．Come on, ______you'll be late.A．and B．but C．or D．so 26．The little girl is only ________. Today is her ________ birthday.A．five; fifth B．fifth; fifth C．fifth; five D．five; five【参考答案】一、选择题1．B2．B 3．C 4．D 5．A 6．D 7．D 8．B 9．D 10．B 11．D 12．A 13．D 14．D 15．D 16．C 17．D 18．B 19．C 20．D 21．C 22．D 23．B 24．D 25．C【参考解析】一、选择题1．B解析：B【解析】【详解】句意：-踢足球怎么样？-听起来很棒。
武汉外国语学校初中英语七年级下册Unit 2提高练习(含答案)(1)
一、选择题1．Either Mary ________Jim can play chess.A．or B．and C．but D．so A解析：A【详解】句意：或者Mary或者Jim会下象棋。
or或者；and和，而且，表示并列；but但是，表示转折；so因此，所以。
这里是either…or..是固定短语，意为“或者…或者…，要么…要么”。
故应选A。
2．My mother often_______home at 6:00 in the evening.A．get B．gets C．gets to D．get to B解析：B【详解】句意：我的母亲经常在晚上6点到家。
get得到，get to到达，home是副词，故前面不加介词。
表示“到家”用get home。
因为主语my mother是第三人称单数，故谓语用第三人称单数形式，故为gets。
故选B。
3．-When do you eat_________breakfast?-At 6:30.And I eat_________good breakfast every day.A．/;a B．a;a C．a;/ D．/;/A解析：A【详解】句意：——你什么时候吃早饭？——在6点30分。
我每天好好吃早饭。
在三餐之前，一般不加冠词，但是在三餐之前有形容词修饰，表示一个……的早饭，故用不定冠词a修饰。
故第一空为eat breakfast，第二空为eat a good breakfast。
故选A。
4．Either you or I_______on duty(值日)today.A．am B．is C．are D．do A解析：A【详解】句意：今天或者是你或者是我值日。
be on duty值日。
either…or…“或者……或者……”连接并列主语，谓语用就近原则，此处离谓语最近的主语是I,故谓语用am。
故选A。
5．Ice-cream tastes_______,but it's bad_______health.A．well;for B．good;for C．well;with D．good;with B解析：B【详解】句意：冰淇淋品尝起来好，但是它对健康有害。
武汉外校美加分校学年度上学期七年级数学周练
武汉外校美加分校2015~2016学年度上学期七年级数学周练2一、选择题（共10小题，每小题3分，共30分）1．下列四个数中：－1，0，－3，2，1，其中负数有（ ） A ．1个B ．2个C ．3个D ．4个2．－9的相反数是（ ） A ．91-B ．91 C ．－9 D ．93．如果零上2℃记作＋2℃，那么零下3℃记作（ ） A ．－3℃ B ．－2℃ C ．＋3℃ D ．＋2℃ 4．有理数－1，－2，0，3中，最小的一个数是（ ）A ．－1B ．－2C ．0D ．3 5．某种水饺的储藏温度是－18±2℃，四个冷藏室的温度如下，则不适合储藏此种水饺的是（ ）A ．－17℃B ．－22℃C ．－18℃D ．－19℃6．在算式)32(□)32(--中“□”中填上运算符号，使结果最大，这个运算符号是（ ）A ．加号B ．减号C ．乘号D ．除号7．如图，数轴上的单位长度为1，如果A 、B 表示的数的绝对值相等，那么点A 表示的数是（ ）A ．－4B ．－2C ．0D ．48．小明同学利用哦计算机设计一个计算程序，输入和输出的数据如下表．当输入的数据是8时，输出的数据是（ ） 输入 1 2 3 4 5 …… 输出 21 52 103 174 265 …… A ．618B ．638C ．658D ．678 9．若n 为正整数，则n 、－n 、n1的大小关系为（ ） A ．－n ≤n ≤n1 B ．－n ＜n ＜n1C ．－n ＜n1＜n D ．－n ＜n1≤n 10．下列说法：① 若a ＝b ，则－2a ＋1＝－2b ＋1一定成立；② 若a ＋b ＞0，|－a |＝b ，则a 与b 一定为正数；③ 若a 3＜a 2，则a ＜1；④ 若abc ≠0，则式子cc b b a a ||||||++的绝对值的值只可能是1或3，其中正确的有（ ） A ．1个B ．2个C ．3个D ．4个二、填空题（本大题共6个小题，每小题3分，共18分） 11．化简：－[－(－0.33)]＝_________ 12．有理数32-与43-的大小关系是：32-_________43-13．若m 和n 互为相反数，m ＜n ，且m 与n 在数轴上所对应的点之间的距离是48，则m ＝_________ 14．数轴上点A 对应的数为2，点B 对应的数为x ，点C 对应的数为－5．若点B 与A 之前的距离恰好等于点B 与C 之间的距离，那么x ＝_________15．若abc ＜0，a ＋b ＋c ＝0，则cb a bc a a c b ||||||+++++＝_________ 16．有两组数，第一组：31-，51，71-，第二组：26，91，－12．从这两组数中各取一个数，将它们相乘，那么所有这样的乘积的总和是_________ 三、解答题（共6题，共72分）17．（本题20分）计算：(1) (－8)＋10＋2＋(－6)(2) －9×(－11)÷3÷(－3)(3) 0.4＋(－0.2)×3－(－0.8)÷7(4) )101(313)212()21311(-⨯--÷-18．（本题8分）小虫从某点A 出发在一条直线上来回爬行，规定向右爬行的路程记为正数，向左爬行的路程记为负数．爬行的各路程依次记为（单位：厘米）：－11，＋8，＋10，－3，－6，＋12，－10(1) 小虫最后是否回到出发点，请判定并且说明理由(2) 在爬行的过程中，如果每爬行一个单位长度奖励一粒芝麻，则整个运动过程中小虫一共得到多少粒芝麻？19．（本题8分）已知有理数a 、b 、c 在数轴上的位置如图所示，化简|a ＋b |－|b －1|－|a －c |－|1－c |20．（本题8分）有两组有规律的数列： ① 2，－6，12，－20，30，…… ② －1，3，－5，－7，－9，……(1) 数列①中第7个数为__________，数列②中的第8个数为_________ (2) 数列①中的第n 个数为__________，数列②中的第n 个数为__________ (3) 求数列①与数列②中第n 个数之和（用含n 的最简式子表示）21．（本题8分）若|ab －2|与|b －1|互为相反数， 求)2014)(2014(1)2)(2(1)1)(1(11++++++++++b a b a b a ab 的值22．（本题12分）数轴上A 对应的数为a ，B 对应的数为b ，且满足|a －12|＋|b ＋6|＝0，0为原点(1) 求a 、b 的值，并在数轴上标出A 、B(2) 数轴上A 以每秒3个单位，B 以每秒1个单位的速度同时出发向左运动，在C 点处A 追上了B ，求C 点对应的数是多少？(3) 若点A 原地不动，点B 仍以每秒1个单位的速度向左运动，M 为线段OB 的中点，N 为线段AB 的中点．在点B 的运动过程中，线段MN 的长是否变化？若变化，说明理由；若不变，求出其长度。
武汉外国语学校初中英语七年级上册Starter Unit 2经典练习(培优)
考试范围：xxx；满分：***分；考试时间：100分钟；命题人：xxx 学校：__________ 姓名：__________ 班级：__________ 考号：__________一、选择题1．—John, this is my friend Li Hua.—____________A．Thank you. B．What’s your name?C．Nice to meet you! D．How are you?2．— Jim, _____ is Sonia. _____ is my good friend.— Nice to meet you, Sonia!A．he; This B．this; She C．it; She3．Your father’s sister is your _____.A．mother B．aunt C．cousin4．“Is he your father?” “______.”A．Yes, he is. B．Yes, he isn’t.C．No, he is.5．“Is she a student?” “Yes, ______.”A．she B．she is C．it is6．Everyone in my family music.A．enjoys listening B．enjoys listening to C．enjoy listening to D．enjoy listening 7．________, I’m late. That’s all right.A．Sorry B．Excuse me C．I sorry D．I’m wrong 8．Oh, _______ is my aunt, Sally.A．he B．she C．her D．his9．My father’s father is my _______ .A．aunt B．uncleC．brother D．grandfather10．Is this your backpack? ________.A．Yes, it’s B．Yes, it is C．No, it not D．No, its not11．Sorry, this is not ________ ruler.A．my a B．a my C．an D．my 12．— What are those?— _____.A．They are red B．They are jackets C．They are my brothers 13．— ______ is that girl?—She is Dick’s cousin.A．Where B．What C．Who D．Which 14．Is ________ your brother?A．the boy B．a boyC．the girl D．a girl15．—What's the name ________ your cat?—Eric.A．of B．in C．to D．on 16．This ________ my brother.Those ________ my parents.A．is；is B．are；are C．are；is D．is；are 17．—Have a good day, Bill.—________.A．Thanks B．Oh, I seeC．Spell it, please D．Nice to meet you, too18．—The talent show Youth With You (青春有你) is becoming hotter and hotter online.—Exactly. Half of our class ______ interested in it recently.A．is B．are C．was19．—is the boy?—Oh,he’s my cousin Dale.A．How B．What C．What color D．Who 20．—Look!This is a photo my family.—It is nice.A．in B．at C．of D．to 21．—Is she your mother?—.She is my aunt.A．Yes,she is B．No,she isn’t C．No,she is D．Yes,she isn’t 22．This is my mother,and I’m her.A．daughter B．teacher C．parent D．mother 23．—Is that your father?—_________. It’s my uncle.A．Yes, that isB．No, that isn’tC．Yes, it isD．No, it isn’t24．__________ my cousins.A．These are B．This areC．These is D．This is25．Is that your________?A．a map B．photos C．rulers D．picture 26．________ you Miss Read? Yes. My name ________ Sue Read.A．Are, am B．Are, is C．Is, are D．Is, is【参考答案】一、选择题1．C2．B3．B4．A5．B6．B7．A8．B9．D10．B11．D12．B13．C14．A15．A16．D17．A18．B19．D20．C21．B22．A23．D24．A25．D26．B【参考解析】一、选择题1．C解析：C【解析】【详解】句意：—约翰，这是我的朋友李华。
武汉外国语学校初中英语七年级上册Starter Unit 2经典练习(培优)
考试范围：xxx；满分：***分；考试时间：100分钟；命题人：xxx 学校：__________ 姓名：__________ 班级：__________ 考号：__________一、选择题1．—Is it______ bag?—No,it's an old cap.A．the B．an C．a D．any 2．— ______?—It’s a Q.A．What’s this B．How are you C．This is what3．你想知道这个是什么？你应当问________A．Hi，what's this?B．Hello, what's your name?C．Nice to meet you.4．（题文） This is _______nice jacket.A．an B．a C．/5．选择与其他三项音素不同的一项。
A．N B．LC．D D．M6．— Your jacket is nice.— ______.A．Thank you B．Yes, it’s nice C．That’s OK D．No, it isn’t 7．选择与其他三项音素不同的一项。
A．O B．AC．K D．H8．—Colin, what's this in English?—__________.A．It's pen B．It's a pen C．This is a pen 9．—The jacket is nice (好看的).—_______.A．Thank you B．GoodC．OK D．Black10．This is ______ orange.That's _____ pen.A．a；a B．an；an C．a；an D．an；a 11．—What's this?—It's_______ jacket.A．a B．an C．the12．下列字母都是元音的一组是______。
湖北武汉外国语学校初中英语七年级上册期末(课后培优)
一、选择题1．—What about ________ soccer?—That ________ great.A．play; sounds B．playing; sounds C．playing; sound D．play; sound B解析：B【解析】【详解】句意：-踢足球怎么样？-听起来很棒。
play玩，踢球，动词原形；playing是动名词形式；sounds听起来；sound动词原形。
第一句话使用了句型What about…?表示提建议，意为“…怎么样？”，后跟名词或者动名词形式，故先排除A和D；第二句话的主语That为单数，动词应用三单形式，故选B。
2．--- Why ________ Jim like history?--- Because it's very easy and interesting.A．does B．can C．is D．do A解析：A【详解】句意：-Jim为什么喜欢历史？-因为它很轻松、有趣。
does助动词，用于主语是第三人称单数时；can情态动词；is是；do助动词，用于主语是复数或第一人称时。
这句话的主语是Jim，第三人称单数，且like是实意动词，应用助动词does构成疑问句，故选A。
3．_____ is after September.A．October B．November C．August D．December A解析：A【解析】【详解】句意：九月之后是十月。
考查名词辨析。
A. October十月；B. November十一月；C. August 八月；D. December十二月。
根据_____ is after September.可知句意为“九月之后是十月。
”故答案选A。
4．Do you eat _____ at school ?A．well B．good C．nice D．fine A解析：A【详解】句意：你在学校吃得好吗？考查形容词、副词辨析。
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武汉外校美加分校2015~2016学年度上学期七年级数学周练2
一、选择题（共10小题，每小题3分，共30分）
1．下列四个数中：－1，0，－3，2，1，其中负数有（ ） A ．1个
B ．2个
C ．3个
D ．4个
2．－9的相反数是（ ） A ．9
1-
B ．
9
1 C ．－9 D ．9
3．如果零上2℃记作＋2℃，那么零下3℃记作（ ） A ．－3℃ B ．－2℃ C ．＋3℃ D ．＋2℃ 4．有理数－1，－2，0，3中，最小的一个数是（ ）
A ．－1
B ．－2
C ．0
D ．3 5．某种水饺的储藏温度是－18±2℃，四个冷藏室的温度如下，则不适合储藏此种水饺的是（ ）
A ．－17℃
B ．－22℃
C ．－18℃
D ．－19℃
6．在算式)3
2
(□)32(--中“□”中填上运算符号，使结果最大，这个运算符号是（ ）
A ．加号
B ．减号
C ．乘号
D ．除号
7．如图，数轴上的单位长度为1，如果A 、B 表示的数的绝对值相等，那么点A 表示的数是（ ）
A ．－4
B ．－2
C ．0
D ．4
8．小明同学利用哦计算机设计一个计算程序，输入和输出的数据如下表．当输入的数据是8时，输出的数据是（ ） 输入 1
2
3
4
5
…… 输出 2
1 5
2 10
3 17
4 26
5 …… A ．
618
B ．
63
8
C ．
65
8
D ．
67
8 9．若n 为正整数，则n 、－n 、n
1
的大小关系为（ ） A ．－n ≤n ≤
n
1 B ．－n ＜n ＜
n
1
C ．－n ＜
n
1
＜n D ．－n ＜
n
1
≤n 10．下列说法：① 若a ＝b ，则－2a ＋1＝－2b ＋1一定成立；② 若a ＋b ＞0，|－a |＝b ，则a 与b 一定为正数；③ 若a 3＜a 2，则a ＜1；④ 若abc ≠0，则式子c
c b b a a |
|||||+
+的绝对值的值只可能是1或3，其中正确的有（ ） A ．1个
B ．2个
C ．3个
D ．4个
二、填空题（本大题共6个小题，每小题3分，共18分） 11．化简：－[－(－0.33)]＝_________ 12．有理数32-
与43-的大小关系是：3
2
-_________43-
13．若m 和n 互为相反数，m ＜n ，且m 与n 在数轴上所对应的点之间的距离是48，则m ＝_________ 14．数轴上点A 对应的数为2，点B 对应的数为x ，点C 对应的数为－5．若点B 与A 之前的距离恰好等于点B 与C 之间的距离，那么x ＝_________
15．若abc ＜0，a ＋b ＋c ＝0，则
c
b a b
c a a c b |
|||||++
+++＝_________ 16．有两组数，第一组：31-，51，7
1
-，第二组：26，91，－12．从这两组数中各取一个数，
将它们相乘，那么所有这样的乘积的总和是_________ 三、解答题（共6题，共72分）
17．（本题20分）计算：(1) (－8)＋10＋2＋(－6)
(2) －9×(－11)÷3÷(－3)
(3) 0.4＋(－0.2)×3－(－0.8)÷7
(4) )10
1
(313)212()21311(-⨯--÷-
18．（本题8分）小虫从某点A 出发在一条直线上来回爬行，规定向右爬行的路程记为正数，向左爬行的路程记为负数．爬行的各路程依次记为（单位：厘米）：－11，＋8，＋10，－3，－6，＋12，－10
(1) 小虫最后是否回到出发点，请判定并且说明理由
(2) 在爬行的过程中，如果每爬行一个单位长度奖励一粒芝麻，则整个运动过程中小虫一共得到多少粒芝麻？
19．（本题8分）已知有理数a 、b 、c 在数轴上的位置如图所示，化简|a ＋b |－|b －1|－|a －c |－|1－c |
20．（本题8分）有两组有规律的数列： ① 2，－6，12，－20，30，…… ② －1，3，－5，－7，－9，……
(1) 数列①中第7个数为__________，数列②中的第8个数为_________ (2) 数列①中的第n 个数为__________，数列②中的第n 个数为__________ (3) 求数列①与数列②中第n 个数之和（用含n 的最简式子表示）
21．（本题8分）若|ab －2|与|b －1|互为相反数， 求)
2014)(2014(1)2)(2(1)1)(1(11++++++++++b a b a b a ab 的值
22．（本题12分）数轴上A 对应的数为a ，B 对应的数为b ，且满足|a －12|＋|b ＋6|＝0，0为原点
(1) 求a 、b 的值，并在数轴上标出A 、B
(2) 数轴上A 以每秒3个单位，B 以每秒1个单位的速度同时出发向左运动，在C 点处A 追上了B ，求C 点对应的数是多少？
(3) 若点A 原地不动，点B 仍以每秒1个单位的速度向左运动，M 为线段OB 的中点，N 为线段AB 的中点．在点B 的运动过程中，线段MN 的长是否变化？若变化，说明理由；若不变，求出其长度。