2017---2018学年度第一学期期中考试试题及答案

2017—2018学年度第一学期期中测试本试卷要为第I卷（选择题）和第II卷（非选择题）两部分。

满分120分，考试时间120分钟。

第I卷（选择题共85分）第一部分听力（共两小节，满分20分）做题时，先将答案标在试卷上。

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题；每小题1分，满分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。

Where does the conversation probably take place?At a TV store. B. In a restaurant C. In a hotel What’s the most probable relationship between the speakers? Customer and waiter. B. Teacher and student. C. Doctor and patient.What does the man say about turtles?They’re ugly and lazy. B. They’re cute and smart. C. They’r e noisy and dirty.What does the woman mean?The man doesn’t have to move at all.The man’s new apartment is near his school.She once lived on .What does the woman advice the man to do?Buy an iPad 4 this week. B. Play games on his iPad 4. C. S urf the Internet together.第二节（共15题；每小题1分，满分15分）听下面5段对话或独白。

2017-2018学年度第一学期期中考试试卷第一部分听力（共两节, 满分20分）第一节：（共5小题;每小题1分,满分5分）1. When does the office open?A. At 7:45B. At 8:15C. At 8:002. How much does the woman know about planting flowers?A. Only a littleB. Quite a lotC. Nothing3. Where does the conversation probably take place?A. In a park.B. In a travel agencyC. At a train station.4. What does the woman want to drink?A. White coffee without sugar.B. Black coffee with some sugar.C. White coffee with some sugar.5. What will the two speakers probably do first?A. Have breakfast.B. Visit the art museum. C . Read the guidebook.第二节（共15小题;每小题1分,满分15分）听第6段材料,回答第6至8题。

6. What do we learn about Susan?A. She went to after graduation.B. She is now working in a restaurant.C. She has just moved into a new house.7. What does John look like?A. Much thinner and his hair is shorter.B. Much fatter and his hair is longer.C. Much thinner and his hair is longer.8. How many people are there in Susan’s family?A. FourB. FiveC. Six听第7段材料,回答第9至11题。

2017---2018学年第一学期期中考试（时间：120分钟满分：150分）注意事项：本试卷分第Ⅰ(选择题)卷和第Ⅱ卷（非选择题）两部分。

答题前，考生务必将自己的姓名、准考证号填写在本试卷相应的位置。

全部答案在答题卡上完成，答在本试卷上无效。

第Ｉ卷（选择题）第一部分听力（共两节，满分30分）做题时，先将答案标在试卷上，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．How much will the man pay for the toys?A．4 dollars. B．10 dollars.C．20 dollars.2．What's the man?A．A doctor. B．A teacher.C．A salesman.3．What does the woman mean?A．She is too busy. B．It is too late. C．It looks like rain. 4．Where did Sam work before he got the new job?A．In an advertising firm. B．In a hospital. C．In a library. 5．What time does the train arrive?A．At 10：45. B．At 10：40.C．At 10：15.（共15小题；每小题1.5分，满分22.5分）听下面五段对话或独白，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，每段对话或独白读两遍。

2017-2018学年第一学期期中质量检测小学五年级语文试卷（学完1——4组课文用时间：90分）☆看清想好再动笔，卷面整洁得两分。

一、基础（24分）1.抄写下面的字。

（3分）唇砸葬幽嗯诫瘾溅婪滤2.读拼音，写汉字。

（6分）jù qiáo â zòng sāi yàng （）怕华（）上（）操（）鱼（）安然无( )3．在下列各项中加点字读音完全正确的后面打“√”，在读音有错的后面打“×”。

（3分）（1）踮．（diàn）脚夹．（jiá）丝玻璃榨．(zhà )油（）（2）眼睑．(jiǎn) 潺．潺(chán ) 蛰．(zhã )伏（）（3）绿蔓．（màn）翕．（hã）动捕．（bǔ）捞（）4.判断加点词语使用是否正确，对的打“√”，错的打“×”。

（4分）（1）他做事情很武．断．，化解了许多危险。

（）（2）这篇文章观点十分新颖，见解也很深刻，的确不同凡响．．．．。

（）（3）今天是博物馆开馆的第一天，参观的人潮络绎不绝．．．．。

（）（4）我们原本只是抱着观摩学习之心来参赛，想不到竟然得奖，真是大喜过望．．．．。

（）5．选择关联词填空。

（4分）只要……就……只有……才……虽然……但是……（1）董存瑞（）马上炸掉暗堡，（）能保证战斗的胜利。

（2）（）五壮士牺牲很多年了，（）他们坚强不屈，英勇斗争的精神却时刻鼓舞着我们。

6. 按要求写句子。

（4分）（1）大树爷爷看到了孩子们幸福的笑容和欢乐的歌声。

（修改病句）（2）目前已知最大的鲸约有十六万公斤重，最小的也有两千公斤。

（写个句子，用上列数字的说明方法）二、积累（14分）1．把下面的词语补充完整。

（4分）毫不犹（）低头（）节不容争（）（）然大物2．把下面的句子补充完整。

（4分）（1）读书破万卷，__________________________。

2017-2018学年度第一学期期中考试九年级物理试卷本试卷分卷Ⅰ和卷Ⅱ两部分.卷Ⅰ为选择题，卷Ⅱ为非选择题。

本试卷满分为100分，考试时间90分钟。

卷Ⅰ（选择题，共36分）一、选择题：本大题共12个小题。

每小题只有一个选项符合题意，每小题3分，每小题3分。

本题共36分。

1.下列各物理量中，有一个物理量的单位与其他三个物理量的单位不同，它是 ……（ ） A. 内能 B. 热值 C. 功 D. 热量2．下列四组物质中，通常情况下都属于导体的一组是…………………（ ） A. 水银、大地、石墨 B. 玻璃、陶瓷、人体 C. 塑料、空气、橡胶 D. 盐水、煤油、蒸馏水3．如图1所列现象不能说明分子之间有引力的是……………………（ ）A. 两块铅块结合在一起B. 测力计的示数变大C. 两个露珠相遇后变成一个露珠D. 气体容易被压缩4．水的比热容较大这一特点在日常生活中有广泛的应用。

下列事例中不属于应用这一特点的是 ( ) A. 培育水稻秧苗时往稻田里灌水 B. 用水来冷却汽车发动机 C. 炎热的夏天，往室内地面上洒水降温 D. 冬天供暖时用水作循环液5．将肉片直接放入热油锅里爆炒，会将肉炒焦或炒糊，大大失去鲜味．厨师预先将适量的淀粉拌入肉片中，再放到热油锅里爆炒，炒出的肉片既鲜嫩味美又营养丰富，对此现象说法不正确的是（ ） A. 在炒肉片过程中，肉片的温度升高，内能增加 B. 附着在肉片外的淀粉糊有效防止了肉片里水分的蒸发 C. 在炒肉片过程中，肉片内能增加主要通过做功实现的D. 附近能闻到肉香体现了分子在不停地做无规则的运动6. 如图3所示，在做“连接串联电路”的实验中，许多同学闭合开关后发现灯泡L 1比L 2亮，则（ ）A. 通过L 1的电流大B. 通过L 2的电流大C. 通过两灯的电流一样大D. 无法判断两灯的电流大小7. 楼道里的声光控开关工作原理是：“光控开关（天黑时自动闭合，天亮时自动断开）；“声控开关”（有声音时自动闭合，一分钟后，若再无声音就自动断开）。

2017—2018学年度第一学期期中考试试题(满分：120分时间：100分钟)第一部分阅读理解(共两节，满分40分)第一节(共15小题；每小题2分，满分30分)阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。

ADoctor Seuss was born in 1904. By the middle 1950s, he had become one of the best-loved and most successful children's book writers in the world . His books are very popular with young readers. They enjoy t he invented words and the pictures of unusual funny animals and plants.In 1954, life magazine published a report about school childre n who could not read. The report said many children's books were not interesting. Doctor Seuss strongly hoped to help chil dren and decided to write books that were interesting and eas y to read. He used words with the same ending sound, like fis h and wish. He did not receive training in art. Yet, he drew thepictures for most of his books.In 1957, Dr. Seuss wrote The Cat in the Hat. He used less tha n 230 words to write the book and even a six-year-old should be able to read it. It was a fun story and easy to re ad. Children loved it. Their parents loved it, too. Today it is stil l one of the stories they like best. The success of The Cat in t he Hat made him want to write more books for children. In 19 60, he wrote a book using less than fifty words. The book is c alled Green Eggs and Ham.In 1984, Doctor Seuss won a Pulitzer Prize (普利策奖). He was honored for the education and enjoyment his boo ks provided American children and their parents.He died at the age of 87, but his influence remains. Millions of his books have been sold worldwide. People say his books h elped change the way American children learned to read. Yet, his books are loved by people of all ages. Doctor Seuss once said, "I do not write for children. I write for people.1. People like Seuss’ books because the books ______.A. are cheap and easy to getB. were written in different languagesC. are easy and interesting to readD. were written with invented words2. He wrote the book The Cat in the Hat at the age of _____.A. 50B. 53C. 56D. 873. Which of the following is TRUE according to the passage?A. Doctor Seuss wrote Green Eggs and Ham with over 230 w ords.B. Doctor Seuss wrote books only for children in the United St ates.C. The Cat in the Hat was written only for six-year-old children.D. His books provided education and enjoyment for American s.4. From the text we know that Doctor Seuss __________.A. won a Pulitzer Prize soon after his deathB. sold millions of his books himself worldwideC. changed American children's way of readingD. wrote the largest number of books in the worldBHappiness is important for everyone. Most people want to be happy but few know how to find happiness. Money and succe ss don’t bring lasting happiness. Happiness depends on ours elves. In other words, we make our own happiness.Some people believe that if they are wealthy, they will be able to do anything they want, which means happiness. On the ot her hand, some people believe that holding a high position in t he government is happiness. In this way, you have not only m oney, but also many other things which can’t be bought by mo ney. However, other people believe that having lots of money is not happiness, nor is holding a high position in the governm ent. These people value their beliefs, or their intelligence, or t heir health. They think these can make them happy.Here are a few ways to help you be happier.The first secret of happiness is to enjoy the simple things in lif e. Too often, we spend so much time thinking about the future , for example, getting into college or getting a good job, that w e don’t enjoy the present. You should enjoy life’s simple pleas ures, such as reading a good book, listening to your favorite music, or spending time with close friends. People who have close friends usually enjoy happier and healthier lives.The second secret of happiness is to be active. Many people go dancing or play sports. People can forget about their probl ems and only think about the activities.Finally, many people find happiness in helping others. Accordi ng to studies, people feel good when they volunteer their time to do many meaningful things for other people. If you want tofeel happier, do something nice for someone. You can help a friend with his or her studies, go shopping to get food for an ol d neighbor, or simply help around the house.Now maybe you know how to find happiness!5. The underlined word “wealthy” means “__________” in the a rticle.A. pleasedB. healthyC. excitedD. rich6. The writer thinks the secret of happiness is that people ___ ________.A. think about getting a good jobB. think of presents th ey don’t likeC. often spend time with close friendsD. often spend time on entering the college7. The passage mainly tells us _________.A. how to find happinessB. how to save happines sC. to do something good for othersD. to value our belie fs or healthCWelcome to your future life!You get up in the morning and look into the mirror. Your face i s firm and young-looking. In 2035, medical technology is better than ever. Many people at your age could live to be 150, so at 40, you’re not o ld at all. And your parents just had an anti-aging treatment. Now, all three of you look the same age! You say to your shirt, “T urn red.” It changes from blue to red. I n 2035, “smart clothes” contain particles much smaller than th e cells in your body. The particles can be programmed to cha nge your clothes’ color or pattern.You walk into the kitchen. You pick up the milk, but a voice sa ys, “You shouldn’t drink that!” Your fridge has read the chip th at contains information about the milk, and it knows the milk is old. In 2035, every article of food in the grocery store has suc h a chip.It’s time to go to work. In 2025, cars drive themselves. Just tel l your “smart car” where to go. On the way, you can call a frie nd using your jacket sleeve. Such “smart technology” is all aro und you.So will all these things come true? “For new technology to suc ceed,” says scientist Andrew Zolli, “it has to be so much better that it replaces what we have already.” The Internet is one ex ample—what will be the next?8. We can learn from the text that in the future ________.A. people will never get oldB. everyone will look the sameC. red will be the most popular colorD. clothes will be able to change their pattern9. What can be inferred from Paragraph 4?A. Milk will be harmful to health.B. More drinks will be available for sale.C. Food in the grocery store will carry electronic information.D. Milk in the grocery store will stay fresh much longer.10. Which of the following is mentioned in the text?A. Nothing can replace the Internet.B. Fridges will know what people need.C. Jacket sleeves can be used as a guide.D. Cars will be able to drive automatically.11. What is the text mainly about?A. Food and clothing in 2035.B. Future technology in everyday life.C. Medical treatments of the future.D. The reason for the success of new technology.DFirst aid is emergency care for a victim of sudden illness orinjury until more skillful medical treatment is available. It may save a life or improve certain important signs including pulse, temperature, a clear airway, and breathing. In minor emergen cies, first aid may prevent a victim's condition from turning wor se and provide relief from pain. First aid must be done as quic kly as possible. In the case of the seriously injured, a few min utes can make the difference between complete recovery and loss of life.First-aid measures depend upon a victim's needs and the provider' s level of knowledge and skill. Knowing what not to do in an e mergency is as important as knowing what to do. Improperly moving a person with a neck injury, for example, can lead to p ermanent spinal(脊柱的) injury and paralysis (瘫痪) .Despite the variety of injuries possible, several rules of first aid apply to all emergencies. The first step is to call for expert medical help. The victim, if conscious, should be reassured t hat medical aid has been requested, and asked for permissio n to provide any first aid. Next, assess the scene, asking oth er people or the injured person's family or friends about detail s of the injury or illness, any care that may have already been given, and pre-existing conditions such as diabetes(糖尿病) or heart trouble. The victim should be checked for a medical card that describes special conditions. Unless the accident scene becomes unsafe or the victim may suffer further injury, do not move the victim.First aid requires rapid assessment of victims to decide wh ether life-threatening conditions exist. One method for accessing a victi m's condition is known by the acronym(首字母缩写词) ABC, which stands for:A-Airway: Is it open and clear?B-Breathing: Is the person breathing? Look, listen, and feel for b reathing.C-Circulation: Is there a pulse? Is the person bleeding externally ? Check skin color and temperature for additional indications of circulation problems.12. First aid may bring about all the following results EXCEPT .A. saving a victim's lifeB. preventing a victim's condition from getting worseC. relieving a victim from painD. helping a person avoid sudden illness or injury13. Before we offer first aid to a victim, it is very important for us .A. to make sure what to do and what not to doB. to refer to all kinds of handbooks on first aidC. to remove the ring or bracelet he/she may be wearingD. to take him/her to a hospital at once14. In giving first aid to a victim, you should first of all .A. remove his/her from the accident sceneB. turn him/her overC. call for professional medical helpD. examine him/her carefully15. The purpose of the passage is to tell the reader . .A. the importance of protecting the accident sceneB. some basic facts about first aidC. what professional medical help isD. who can offer first aid第二节 (共5小题；每小题2分，满分10分)根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。

2017—2018学年度第一学期期中检测九年级语文试卷第一部分（1～6题22分）1.在下面的横线上填写出相应的句子。

（7 分）（1）在《观刈麦》中，侧面表现农民劳动繁忙的诗句是：，童稚携壶浆。

（2）苏轼的《江城子·密州出猎》中抒写人到中年的主人公，壮志未酬的感叹的句子：，鬓微霜，又何妨！（3）了却君王天下事，。

（辛弃疾《破阵子·为陈同甫赋壮词以寄之》）（4）《出师表》中表明作者志趣的句子：苟全性命于乱世，。

（5）在《陈涉世家》中，表明陈胜从小就有远大理想的句子：。

（6），燕然未勒归无计。

（范仲淹《渔家傲•秋思》）（7）江山如此多娇，。

（毛泽东《沁园春•雪》）2.选出加点字读音不相同的一项。

（3分）（）A．赶尽杀绝感恩戴德敢作敢为B．攻城略地供不应求功成名就C．数以万计数见不鲜如数家珍D．兼收并蓄坚壁清野艰苦卓绝3．下列句子中没有语病的一句是：（3分）（）A．不但老师表扬了我，而且也表扬了其他同学。

B．坚持从实际出发，是能否搞好工作的必要条件。

C．无论干部和群众，毫无例外，都应该切实遵守社会主义法制。

D．我冒了严寒，回到相隔二千余里，别了二十余年的故乡去。

4.选出没有对偶修辞的一项。

（3分）( ) A．山舞银蛇，原驰蜡象，欲与天公试比高。

B．巧笑东邻女伴，采桑径里逢迎。

C．墙上芦苇，头重脚轻根底浅；山间竹笋，嘴尖皮厚腹中空。

D．苔痕上阶绿，草色入帘青。

谈笑有鸿儒，往来无白丁。

5．填到下列文字横线处能合理衔接的一句是：（3分）（）十月三日和四日，我们先后参观了当地的养鸡场和机械厂，。

A．尽管那天下着雨，我们还是坚持参观完了才回家。

B．碰巧，一整天雨下个不停，所以我们只看了个大概。

C．不巧，碰上连绵阴雨，使参观受到一定影响。

D．不巧，这天下了场大雨，又刮风，实在是扫兴。

6.下列广告词对成语进行了改动，请任选三个写出其原型。

（3分）（1）消炎药广告词：快治人口（2）热水器广告词：随心所浴（3）止咳药广告词：咳不容缓（4）摩托车广告词：骑乐无穷（5）营养液广告词：口蜜腹健（6）眼病仪广告词：一明惊人答：第二部分（7～24题48分）一、阅读下面一首宋词，回答7～9题。

2017~2018（1）《语文》期中考试题一、选择题(每小题3分，共27分)1.B2.B3.B4. B5.B6.B7. D8.D9. D 10.C 二、现代文阅读（共20分）。

（一）1、 找出有关自然环境描写的句子，简要分析其作用。

（3分）（1）相关句子： 雪，哑哑地落着。

四野一时无声。

1分(2)分析：渲染了悲壮、肃穆的气氛。

雪衬托人物的高贵品质，语言不多表现力强，正所谓此时无声胜有声。

2分2、 刘三爷为什么要赎回字画？既然已经赎回，为什么又要送给王商人？（2分） 他承诺过常先生不卖此画。

王先生“饿死不卖收藏”，他终于为画找到了可靠的主人，他希望王先生信守承诺，包住这一批国宝。

3、 文段揭示了故事的真相，从不同角度诠释了“绝品”的含义，用文段中恰当的语句填空。

（3分） （1）从“画”的角度理解“绝品”： 那幅画为宝中之宝，实为揭裱后倒装置了（2）从“装裱”的角度理解“绝品”： 此画装裱实为绝技，天下一流。

（3）从“人物”的角度理解“绝品”： 这些都是国宝，我恐家人不屑。

送与先生收藏，我终于算是对得住常先生了 。

4、对文段中画线语句分析不恰当的一组（ B ）（2分） （二） 2分5.“不加检点的生活，属于不能接受的生活之一种。

”去掉“之一种”后意思有什么变化？你认为还有什么样的生活是不能接受的生活？2分三、文言文阅读（每题2分，共20分） （一）文言基础知识 1、默写句子。

于是舍人相与谏曰：“ 臣所以去亲戚而事君者 ，徒慕君之高义也。

”今两虎共斗，其势不俱生。

吾所以为此者， 以先国家之急而后私仇也 。

2、下列句子句式不同于其他三句的一项是（B ） 3 、下列句子中没有通假字的一项是（D ）4、下列句中加点字的用法与其他三个不相同的一项是（ C ）5、解释加点词语在不同语境中的意思。

左右欲引．相如去 牵，拉 引．赵使者蔺相如 延请 （ 二 ）阅读文段，完成题目 1、 对下列句中加点词语的解释，不正确的一项是（ ） 2、下列句中加点的字，与“赵亦盛设兵以待秦”中的“以”字用法相同的一项是（b ） 3、下列各句加点词语，与现代汉语意义相同的一项是（ d ） 4、翻译文中画线的句子。

2017——2018学年度上学期期中考试本试卷分第Ⅰ卷（90分）和第Ⅱ卷（60分）总分150分。

答题时间120分钟第一卷第一部分听力 (共两节，20小题，每小题1分，满分20分)第一节听下面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 is the woman going to do tomorrow?A. Go fishingB. Go swimmingC. Go to the ho spital2.How does the man find his job?A. It is interesting and fun.B. Its pay is good.C. It is a lways tiring.3.What are the speakers talking about?A.A story.B. A book.C.A movie.4.Where does the conversation probably take place?A. At the railway station.B. At the bus stop.C. At the airport.5.Where is the man going ?A. The classroom.B. The cinema.C. The library .第二节听下面5段对话或独白。

选出最佳选项。

请听第6段材料. 回答第6至7题。

6.Why is the man going to the United States?A. To travel.B. To visit his friends.C. To attend a conference.7.When will the man probably leave for the United States?A. In mid-February.B. In mid-January. C. In early January请听第7段材料，回答第8至9题。

2017-2018学年第一学期八年级 数学（上） 参考答案及评分标准一、选择题（本大题共16个小题，每小题2分，共32分．在每小题给出的四个选项中，只有一项是符合题目要求的）二、填空题（本大题共4个小题，每小题3分，共12分，把答案写在题中横线上）17．＞ 18．3 19．2 20．8三、解答题（本大题共6个小题，共56分．解答应写出相应的文字说明或解题步骤）21．（1）解：原式=yx 2- ……………（4分） 21．（2）解：原式=2)1()1()111(a a a a a a +-∙++-+ ……………（2分） =2)1()1(11a a a +-∙+- =21-a ……………（4分） 21．（3）解：据题意得：x ﹣2=22=4，∴ x =6， ……………（1分）2y ﹣11=（﹣3）3=﹣27，∴ y =﹣8， ……………（2分）则x 2+y 2=62+（﹣8）2=36+64=100， ………………（3分）∴ x 2+y 2的平方根为±10． …………………（4分）22．解：（1）二， …………………（2分）a-24； …………………（4分） （2）由题意得，aa a -++222=2， 即a-24=2， …………………（5分） 解得：a =0， …………………（7分）经检验，a =0是原方程的解，∴ 当a =0时，原代数式的值等于2． …………………（8分）23．如图1，作出∠B =∠β得3分；作出边BC =a 得2分；作出边AC =b 和A ′C =b 共得3分，少一种情况扣1分．24．（1）命题一，命题二； …………………（4分） （2）命题一： 条件是①AB=AC ，②AD=AE ，③∠1=∠2，结论是④BD=CE ．证明：∵∠1=∠2∴∠BAD=∠CAE ，又AB=AC ，AD=AE ，∴△ABD ≌△ACE （SAS ） …………………（8分）∴BD=CE ．…………………（9分）或：命题二：条件是①AB=AC ，②AD=AE ，④BD=CE ，结论是③∠1=∠2．证明：∵AB=AC ，AD=AE ，BD=CE ，∴△ABD ≌△ACE （SSS ），…………………（8分）∴∠BAD=∠CAE ，∴∠1=∠2．…………………（9分）25．解：（1）设第一次购进衬衫x 件． 根据题意得：48000217600=-xx ．…………………（4分） 解得：x =200．…………………（6分）经检验：x =200是原方程的解．答：该服装店第一次购进衬衫一共200件．…………………（7分）（2）盈利；…………………（8分）盈利=58×（200+400）﹣（17600+8000）=9200（元）…………………（9分） 答：该服装店这笔生意一共盈利9200元．26．（1）△ABE ≌△ACE ，△ADF ≌△CDB ………………（2分）（2）CEAF =2 …………………（3分） 证明：如图2，∵AE 平分∠DAC ，图2 A′ β b图1 A C B ba∴∠CAE =∠BAE ，∵AE ⊥CE ，∴∠AEC =∠AEB =90°，在△AEC 和△AEB 中，⎪⎩⎪⎨⎧∠=∠=∠=∠BAECAE AE AE AEBAEC∴△AEC ≌△AEB （ASA ），∴CE =BE ，即CB =2CE ，…………………（5分）∵∠ADC =90°，∴∠ADF=∠CDB =90°，∴∠B +∠DCB =90°，∵∠B +∠DAF =90°，∴∠DAF =∠DCB ，在△ADF 和△CDB 中，⎪⎩⎪⎨⎧∠=∠=∠︒=∠=∠DCBDAF CD AD CDB ADF 90，∴△ADF ≌△CDB （ASA ），∴AF =CB =2CE ，即CE AF=2． …………………（7分）（3）等于； ……………（8分）辅助线如图3， …………………（9分）作法：过点P 作PG ⊥DC 交CE 的延长线于点G ，交DC 于点B ． ………………（10分） 或：过点P 作PG ∥AD 交CE 的延长线于点G ，交DC 于点B ． 或：延长CE 到点G ，使CE =GE ，连接PG 交DC 于点B ． （说明：其它作法正确均给分）D CE 图3 G。