【广州】2016-2017广东广州天河外国语学校初一下期中
2017学年下学期广州市天河外国语学校七年级期中考试答案
2017学年上学期广州市天河外国语学校七年级下学期期中考试参考答案1. 【B】A．惩罚(chéng) 燕然勒功(yān) C．字帖（tiè）锲而不舍（qiè）D．粗拙(zhuō) 揩油（kāi）2. 【A】B. 感概（慨）历尽心血（沥）C. 惊怂（悚）D. 戌装（戎）选骋（聘）3. 【B】B. “不以为意”改为“不以为然”。
不以为然：不认为是对的。
表示不同意或否定。
不以为意：不把它放在心上。
表示对人、对事抱轻视态度。
4. 【B】A．“防止”—“不再发生”重复C．搭配不当：开拓视野，提高能力。
D．关联词搭配不当：“只要……就……”。
5. 【B】A.豆蔻：女子十三四岁，比喻未嫁的少女。
C.笑纳：客套话，用于请人收下自己的礼物。
D.光临：敬辞，称宾客来到。
6.（1）诺第留斯号，海洋（2）搁浅、土人围攻、同鲨鱼搏斗、冰山封路、章鱼袭击等。
7.（1）东市买骏马，西市买鞍鞯，南市买辔头（2）朔气传金柝（3）弹琴复长啸，深林人不知（4）散入春风满洛城（5）草树知春不久归（6）惟解漫天作雪飞8．（1）点头（2）思念（3）才干和谋略（4）长兄，这里是对朋友辈的敬称（5）赶马快跑（6）尔，同“耳”，相当于“罢了”。
9.【A】（A解释成“凭、靠”，其余都解释伟“用”）10．（1）看他放箭十次中了八九次，只是对此微微地点点头。
（2）于是拿来一个葫芦放在地上，用铜钱盖住它的扣。
11.【C】（晚号六一居士）12.（1）泪流纵横的样子（1分）捎口信（1分）（2）表达了诗人思念亲人又不愿让亲人挂念的复杂情感。
（语文课本P80）（3分）13.B【3分】14.外貌、神态、语言描写。
【2分】例句：她穿着新的蓝布衫回来了，一见面，就将一包书递给我，高兴地说道：“哥儿，有画儿的‘三哼经’，我给你买来了！”【2分】15.“震悚”是身体因恐惧或过度兴奋而颤动的意思【1分】，形象地表现了“我”听到阿长给“我”买回书时的震惊和感激的情态【2分】，十分凝练又极具震撼力【1分】。
广东省广州市2016-2017学年第二学期天河区天河中学七年级1-2单元英语试卷及答案
2016-2017学年第二学期天河区天河中学七年级1-2单元英语试卷笔试部分（100分）一、语言知识与运用20%第一节：单项选择（每小题1分，共10分）1. Guangzhou is a famous ________ modern city. ________ many people visit here every year.A. and; ButB. and; SoC. but; SoD. or; And2. --- Why not ________ and have fun with us?--- I have a lot of homework to do.A. cameB. to comeC. comingD. come3. --- ________ do you think of your grandma?--- She is kind and patient. She always takes time ________ me.A. How, helpB. What, to comeC. How, to helpD. What, helping4. Joyce likes playing ________ piano. She also likes playing ________ basketball.A. the, /B. the, theC. /, theD. /, /5. If you visit France in Winter, you can try ________ on the mountain in the French Alps.A. to skiingB. skiC. skiingD. to ski6. Beijing, the capital of China, is a great city ________ a long history.A. byB. inC. ofD. with7. Miss Chen’ classes are always ________ fun. She often begins her class with a story.A. full withB. full ofC. fill withD. fill of8. In most countries, people celebrate ________ on the second Sunday of May.A. Mother’s DayB. Mothers’ DayC. Mothers DayD. the Mother’s Day9. The children will have a picnic if it ________ tomorrow.A. won’t rainB. didn’t rainC. isn’t rainingD. doesn’t rain10. Work hard and keep doing, and everyone can ________.A. successfulB. successC. be successD. be successful第二节：语法填空（共10小题；每小题1分）Dear Lily,I received your letter yesterday, I’m glad (11)________ that you plan to visit China this summer holidays. I hope I can be your guide and now I want to tell you (12)________ in China. China is the third (13)________ country in the world. It has a large population. Beijing is the capital of China, you’d better (14)________ a visit to it if you come to China. Beijing has lots of places of interest (15)________ the Great Wall and the Summer Palace. You will learn about Chinese cultures and customs here. In China, (16)________ good place to visit is Kunming. It is famous (17)________ its nice weather. You can spend one or two weeks (18)________ it. Besides, it has many beautiful scenery. You can travel to Yunnan by train from Beijing. (19)________ takes you one day and a half to get there.I really hope you can enjoy (20)________ in China.11. A. hear B. to hear C. hearing D. to hearing12. A. anything interesting B. interesting everythingC. something interestingD. interesting something13. A. large B. larger C. largest D. the largest14. A. take B. taking C. to take D. took15. A. as B. for example C. and D. such as16. A. the other B. other C. another D. the others17. A. as B. with C. of D. for18. A. to visit B. visiting C. visit D. to visiting19. A. They B. That C. This D. It20. A. travel B. travelled C. travelling D. to travel二、完形填空15%（共10小题；每小题1.5）Most American families like to have a holiday in summer. Summer is a good season for (21)________. It is very (22)________ during the months of July and August. Children do not go to school during these (23)________ months.Some(24)________ like to stay at home during the holiday. They work in the garden, visit friends, (25)________ books, or(26)________ TV. Many families(27)________ their lunch to a park or somewhere far from the city. They like to(28)________ where there are many trees or there is a nice lake. If they live near the(29)________, they often go to the beach. They can fish, swim or enjoy the sun on the beach.America is a large country. Many families travel by(30)________or by train to see interesting places. They also travel by plane to a foreign country. Many big cities have many famous buildings, theatres, shops and other places for travelers.21. A. school B. weekend C. holidays D. movies22. A. hot B. cold C. rainy D. cloudy23. A. one B. two C. three D. four24. A. man B. woman C. people D. peoples25. A. see B. watch C. look D. read26. A. see B. watch C. look D. read27. A. takes B. take C. took D. taking28. A. eat B. drink C. sleep D. sing29. A. lake B. river C. sea D. pool30. A. a car B. cars C. their cars D. car三、阅读理解35%第一节：阅读理解（每小题2分，共20分）(A)Bill went to visit a small city in the USA last month. It was very late at night when Bill got off the train. He was tired and wanted to find a hotel. He looked around and saw a three-storied building. It was the nearest hotel, so Bill went in and asked the man behind the front desk, “How much is a single room per night, please?”“Well, sir.” Said the man, “a single room in the first floor is $50 a night, on the second floor is $40, and the third floor is $30.”Bill picked up his suitcase and turned to the door. “Don’t you think our prices reasonable（合理的）?” The man asked.“Yes,” said Bill, “Your prices are reasonable all right, but I’m afraid the building of your hotel is not enough high.”31. How did Bill get to the place?A. By planeB. By busC. By trainD. By ship32. When did the story happen?A. In the early morningB. At nightC. In the afternoonD. In the evening33. According to the passage, which single room of the building was the cheapest?A. The room on the first floorB. The room on the second floorC. The room on the third floorD. The room on the fourth floor34. What did Bill do after hearing the words of the receptionist?A. He wanted to leave the hotelB. He took out some moneyC. He put down his suitcaseD. He went up to the third floor35. Which statement is TRUE?A. The hotel wasn’t tall enoughB. The prices were reasonableC. The receptionist wasn’t friendlyD. The prices were too high for Bill(B)Three travelers, Allan, Carl and Paul were sitting on the chairs in a train station. They were waiting for a train.To pass the time, they began talking to each other.At first, they talked about the weather and their work. Then Paul said, “Tell me-what would you most like to do if your doctor tell you that you have only three months to live?”The other two men thought about this for a while, then Carl spoke.“Well,” he said, “if I have only three months to live, I’ll take all my money out of thebank and go to foreign countries for holidays with my best friend, Erik. I’d like to travel to the places in the world as many as possible. And I'll stay at the best hotels and then eat the best food. I think I’ll have a wonderful time.”“That’s very interesting.” Paul said.With these words, he turned to the other man, saying, “And what about you?”“I’ll tell you a secret,” Allan said. “I always want to be a racing driver. So if I have only three months to live, the first thing I’d like to do is to sell my house. With the money I’ll buy the fastest car in the world.”“Now it’s your turn,” Allan went on, “If your doctor tell you the bad news, what would you most like to do?”“Oh,” said Paul with a smile. “If I heard it, I’ll go and see another doctor.”36. Where were the three men talking?A. in the post officeB. in the waiting roomC. on the trainD. on the chairs37. Who answered the question first?A. CarlB. AllanC. ErikD. Paul38. The men began to talk about the weather and the work becausethey____________.A. didn't know anything newB. wanted to pass the time quicklyC. had nothing to doD. were very interested in the work39. What does the underline word it in the last sentence refer to （指代）?A. The bad newsB. The good newsC. The sports carsD. The secret40. Which of the following statement is TRUE according to the passage?A. The three men were doctorsB. Paul wanted to buy a racing car very muchC. Allan was the last man to answer the questionD. Carl enjoyed the travelling and delicious food(C)Pyramids(金字塔) are one of the most interesting buildings in the world. There are many pyramids along the Nile River In modern days, people look at them and wonder, “Who built them? Why ? when? What is inside?”Thousands of years ago, some kings of Egypt built the pyramids. They built them as tombs(坟墓). They thought the pyramids would help people remember them as important persons.The oldest pyramid we know today is about 5,000 years old. The largest pyramid is the pyramid of Khufu. It is about 144 high. It is made of 2,300,300 stones. The stones are very big, and most of them are taller than a person. To build the pyramid of khufu, about 1000,000 men worked for twenty years.How did the people build the pyramids? How did they carry and lift up the large stones? Each stone fits with one another so well, but the people didn’t have modern machines at all! Scientists have studied the pyramids, but nobody can say how they built them.41. The pyramids are in ____________.A. EgyptB. FranceC. South AfricaD. the US42. The kings of Egypt built the pyramids as ____________.A. housesB. tombsC. schoolsD. palaces43. How old is the oldest pyramid we know today?A. About 5,000 years.B. More than 100 years.C. About 2,000 years.D. more than 7,000 years.44. Which is NOT true about the pyramid of Khufu?A. It is the largest pyramid.B. It is about 144 meters high.C. It is taller than a person.D. It took twenty years to build it.45. Which of the following can’t we find in the passage?A. Who built the pyramidsB. How people built the pyramidsC. When people built the pyramidsD. Why people built the pyramids第二节：阅读填空（每小题1分，共5分）Travelling is fun and there are many ways of travelling. (46)____________ In this way, I don’t have to spend too much money. And I can travel to more places. (47)____________ But sometimes you can easily get into the traffic by driving a car, the busy hour could be a problem. (48)____________ Taking buses, I think, makes you know the life and culture of a place better than travelling in a car. On a bus, you can see all kinds of people. (49)____________ If you’d like to visit some interesting places out of the guidebooks, you can ask the bus drivers how to go!(50) ____________ At the same time, it is better to stay within the group. In the group, people take care of each other, and it is easier to get used to a new place. The group will decide the places and visiting time so that everyone can enjoy the trip.四、写作第一节：单词拼写。
广东省广州市2016-2017学年第二学期天河区东圃中学七年级期中测试英语试卷及答案
2016-2017学年第二学期天河区东圃中学七年级期中测试英语试卷笔试部分一、语言知识与运用（共两节，满分20分）第一节单项选择（共10小题；每小题1分，满分10分）从各题所给的A、B、C和D项中选出最佳选项并在答题卡上将该项涂黑。
1. My grandma is ____________ very good cook. Her dishes are probably ____________ best in the world.A. a, aB. the, theC. a, theD. the, a2. Mr. Li comes from the south, ____________ this is his first time to see snow.A. soB. butC. ifD. when3. Listen! Someone ____________ in the next room.A. laughB. laughsC. laughingD. is laughing4. Well done, boys! You should be proud of ____________!A. yourselvesB. yourselfC. himselfD. themselves5. The teacher’s desk is ____________ the blackboard.A. in front ofB. inC. betweenD. above6. You’re so tired, why not ____________ a rest?A. stop to haveB. stop havingC. to stop to haveD. to stop having7. ____________ people visit the Great Wall every year.A. MillionB. Million ofC. Millions ofD. Millions8. I listened carefully, but I could hear ____________.A. everythingB. somethingC. anythingD. nothing9. We need to buy____________ for the new house.A. some furnituresB. some furnitureC. many furnitureD. many furnitures10. All the tables and chairs in our classroom ____________ wood.A. are made inB. are made fromC. are made ofD. are made into第二节语法选择（共10小题；每小题1分，满分10分）阅读下面短文，按照句子结构的语法性和上下文连累的要求，从11~20各题所给的A、B、C和D项中选出最佳选项并在答题卡上将该项涂黑。
广东省广州市2016-2017学年第二学期广东实验中学附属天河学校七年级下月考卷及答案
2016-2017学年第二学期天河区省实中学七年级三月英语试卷一、语音辨别。
（共10小题；每小题1分，满分10分）A)请找出选项中划线部分的字母与所给音标发音相同的单词。
1. / dʒ / A. catch B. machine C. change D. driver2./tʃ / A. January B. China C. orange D. bridge3./dz / A. hands B. looks C. delicious D. bites4./ tr / A. dry B. draw C. trees D. drugB)请找出句中哪个单词划线部分的字母发音与本句其他三个单词划线部分的字母发音不同的。
5.Jerry’s new jeep looks just the same as Charles.A B C D6.There are a lot of products in the markets of our city, and my father often rides his bike to findA B Chis favourites.D7.Amy is trying drawing a dragon on the new drum.A B C DC)请指出下列各句中划线单词的重音位置与其他划线单词不同的选项。
8. Is it possible that you prefer to go to the Europe to visit the beautiful vineyard?9. You should better write down the receiver’s name on the postcard or he may lose it.10.My family members encourage me to find out a successful way to my career.二、单项选择（共15小题；每小题1分，满分15分）11. ________ London is ________ capital of the UK.A. The…theB. /…theC. /…aD. The…a12. The exam is coming. I have to give up________ computer games for some time.A. and playB. in playingC. to playD. playing13. Last week she________ a gift, but she didn’t ________ it.A. received, receiveB. accepted, acceptC. received, acceptD. accepted, receive14. The beginning of the movie was boring, ________ the end was amazing.A. butB. andC. soD. or15. He likes playing football and basketball ________.A. eitherB. as well asC. alsoD. as well16. My sister________ went to visit________ in Beijing last weedend.A.Jenny, the great wallB. jenny, the Great WallC. jenny, the great wallD. Jenny, the Great Wall17. --What does your father look like?--________A. He is friendly.B. He is a tall man with short hair.C. He is a doctor.D. He likes reading.18. Jay Zhou is famous ________ a singer.A. asB. toC. forD. of19. He arrived________ Beijing________ 10:30________ May 12.A.at, in, atB. to, on, atC. in, on, atD. in, at, on20. Look! She is________ a red skirt. She looks nice.A. putting onB. wearingC. wearsD. puts on21. My mother is ill, ________ my father cooked for us instead.A. butB. orC. soD. and22. –Who is________ man with glasses?--Oh, he’s our new English teacher, Mr. Li.A. aB. anC. theD. /23. “________ come down to my home next weekend? We are going to have a party.” He suggested.A. Why notB. Why don’tC. How aboutD. Why didn’t24. –Teddy, is your father________ you?--Yes, he________ time to check my homework every day.A. strict about, takeB. strict about, spendsC. strict with, takesD. strict with, spends25. Some teachers always make us ________ a lot of homework every day.A. to doB. doingC. doesD. do三、完形填空（共15小题；每小题1分，满分15分）阅读下面短文，掌握其大意，然后从26~40各题所给的A、B、C和D项中选出最佳选项并在答题卡上将该项涂黑。
2017-2018年广州市广外外校七下期中考试数学试卷及解析
2017-2018学年广外外校七年级下期中试卷数学本试卷分选择题和非选择题两部分，共4页，满分150分，考试用时120分钟注意事项：1、答卷前，考生务必用黑色字迹的钢笔或签字笔将自己的姓名、考号填写在答题卡上。
2、选择题每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑；如需改动，用橡皮擦干净后，再选涂其它答案；不能答在试卷上。
3、非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在另发的答题卷各题目指定区域内的相应位置上；如需改动，先划掉原来的答案，然后再写上新的答案；允许使用计算器，不准使用铅笔和涂改液，不按以上要求作答的答案无效。
4、考生必须保持答题卡上的整洁，考试结束后，将答题卷考生自己妥善保管，答题卡上交收回。
第一部分（选择题共30分）一、选择题（本大题共10小题，每小题3分，共计30分）1、绝对值是的实数是（）A、B、C、-D、2、的算术平方根为（）A、B、C、D、-3、若把不等式0的解集在数轴上表示出来，则正确的是（）4、若，则下列结论正确的是（）5、如图1，将直尺和三角板按如图所示的方式摆放，已知，则A、B、C、D、6、是二元一次方程2x+ay=3的一个解,则a的值为（）A、3B、C、1D、-17、如图2，“健步走”越来越受到人们的喜爱，一个健步走小组将自己的活动场地定在奥林匹克公园（路线：森林公园—玲珑塔—国家体育场—水立方），如图假设在奥林匹克公园设计图上规定玲珑塔的坐标为（-1，0），森林公园的坐标为（-2，2），则终点水立方的坐标为（）A、（-2，-4）B、（-1，-4）C、（-2，4）D、（-1，-4）8、若关于x的一元一次不等式组恰有3个整数解，那么a的取值范围是（）A、B、C、D、9、直角坐标系中点p（a+2，a-2）不可能所在的象限是（）A、第一象限B、第二象限C、第三象限D、第四象限10、如图3，实数a、b在数轴上的位置如图所示，且，则化简的结果为（）A、2aB、2bC、-2aD、-2b第二部分（非选择题共120分）二、填空题（每小题3分，共计18分）11、若点（2，m-1）在第四象限，则实数m的取值范围是。
广东省专版 广州市七年级(下)期中英语试卷 附答案
广东省广州市七年级（下）期中英语试卷一、单选题（本大题共5小题，共5.0分）1.（）A. .st airB. d eerC. .ch eerfulD. .cl ear2.（）A. p oorB. s ureC. col ourD. t our3.（）A. dreamB. treeC. trainD. travel4.（）A. be dsB. ri desC. ca tsD. rea ds5.（）A. lau ghB. laun chC. cat chD. swit ch二、阅读理解（本大题共10小题，共20.0分）AI like my job because I like to fly in the sky.I fly to different parts of China and other countries as well.I spend most of my time in the sky.Richard，BeijingI enjoy my job very much because I make people happy.Sometimes, people come to watch me. They have lots of fun.Sometimes, they buy CDs and play them at home.Celina，New YorkMy job starts early in the morning and often ends late at night.But I am doing an important job. Everyone needs to eat.They come and order different dishes. I make the dishes for them.Paul，ParisEvery day, I am very busy. I work with children.I draw pictures and sing songs for them. I play games with them too.I feel very happy every day.Susan，Guangzhou6.What does Richard do______A. A pilotB. A cookC. A singerD. A teacher7.Who is from the USA______A. RichardB. CelinaC. PaulD. Susan8.Which job is NOT mentioned in this passage？______A. DoctorB. CookC. TeacherD. Singer9.What does the underlined word"dishes"mean？______A. 盘B. 餐具C. 上菜D. 食物10.Which of the following is TRUE according to the passage？______A. Richard flies only in China.B. Paul ends his job early at night.C. People come to watch Celina sometimes.D. Susan often dances for the children.BOne day，Mr．Smith went to a dinner party．He was wearing very old clothes．He came into the room．But people in the room didn't look at him．They didn't ask him to sit at the table．He wasn't happy．But he said nothing．Mr．Smith went home quickly and put on his best clothes．He went back to the party．Everyone in the room stood up and looked at him．They gave him good food to eat．Mr．Smith took off his coat，and put it on the food and said，"Eat，coat!"The other people were surprised and asked，"What are you doing Why do you do that？"Mr．Smith answered，"I am asking my coat to eat food．When I wore old clothes，you didn't look at me．You didn't ask me to sit down．Now I am wearing these nice clothes．And you give me good food．Now I see，you give the food to my coat，not to me．"11.One day，Mr．Smith went to ______ ．A. a birthday partyB. a dinner partyC. an English partyD. a movie12.When he came into the room，the people didn't look at him．Why？______A. Because the people didn't ask him to come．B. Because Mr．Smith wore old clothes．C. Because Mr．Smith didn't say hello to them first．D. Because it was night，they didn't see him．13.Why did he go home quickly______A. Because he didn't want to stay here．B. Because he didn't like the food there．C. Because the people there asked him to leave．D. Because he went home for his best clothes．14.What's the meaning of"surprised"in Chinese______A. 高兴的B. 不满的C. 感到奇怪的D. 生气的15.Which statement is right？______A. A person in good clothes should eat good food．B. A good coat should eat good food．C. We can't judge（判断）a man by his clothes．D. Mr．Smith is stupid（愚蠢的）．三、阅读填空（本大题共1小题，共10.0分）16.France is in the Western E（66）______ ．There are many places in Paris-the c（67）______ of France．You can visit some shops and d（68）______ s（69）______ in the Champs-Elysees．France is f（70）______ for its wine，because it is very e（71）______ ．The s（72）______ of France has wonderful beaches because it （73）______ on the coast．In summer，a French town by the sea is the p（74）______ place to spend holiday．In winter，you can try s（75）______ on the mountains in the French Alps．Ben's grandma was a short woman w（76）______ grey hair．She was always c（77）______ ．She was a very good cook．Her d（78）______ were probably the best in the world!Ben will never f（79）______ the taste，and the smell．Grandma t（80）______ c（81）______ o（82）______ Ben's family．She was reallykind and p（83）______ ．She d（84）______ two years ago and Ben m（85）______ her very much．四、单词拼写-单句（本大题共14小题，共14.0分）17.Jimmy l ______ Miss Zhang to the teachers'office just now．18.Miss Zhou always e ______ us and gives us ______ ．19.I can't f ______ so many tasks in just two hours．20.Women can also be s ______ in business．21.On National Day，you can see colorful f ______ every where．22. A b ______ person can't see any things．23.I f ______ to turn off the light when I left the house．24.Let's go c ______ the Baiyun Mountain tomorrow morning．25.Every m ______ of the club should take part in the training．26. F ______ ，John and Charlie were both safe on the ground．27.Max is always telling j ______ to make his friend laugh．28.The doctor doesn't a ______ my father to drink wine any more．29.He likes s ______ in winter．30.Tom really m ______ his Grandma．五、单句语法填空（本大题共2小题，共2.0分）31.Why don't you take the l ______ to the top of this building？-I want to walk upstairs，because I need more exercise．32.How many s ______ are there in this mountain？六、句型转换（本大题共2小题，共2.0分）33.I haven't travelled a ______ here．I'm on business，not for a trip．34.Duzy is really a h ______ dog．He can rescue people in danger in the mountains．七、完成句子（本大题共12小题，共45.0分）35.Kevin is a foreign English teacher in our school．He is (1) enthusiastic，patient andhark-working teacher (2) short and gray hair．He has many hobbies．He likes playing the guitar and (3) music．He is also interested in making friends with the people (4) all over the world．He is strict (5) the students and makes the students in his class (6) himcarefully．Meanwhile，he is also a funny teacher who always spends time (7) lots of games in his teaching．Therefore，his class is always (8) of fun．According to him，he will try his best (9) every student in his class learn something new and have fun．He enjoys the time with students，and he is not only a person who likes working hard but also he is the person who enjoys what the world offers．In (10) free time and every holiday，he likes traveling．Last year，he (11) on a holiday to Thailand．Unluckily，he lost his money when he arrived (12) Thailand．However，with his friend (13) help，he got his money back．Then he went to the Phucket Island first because he thought there (14) many beautifulbeaches．Then he went to Pattaya and Bangkok．He enjoyed (15) so much in Thailand．A．a B．an C．the D．/A．in B．on C．the D．withA．make B．makes C．made D．makingA．with B．of C．from D．forA．from B．about C．with D．forA．listens to B．listen to C．listen D．listensA．use B．uses C．used D．usingA．filled B．full C．fill D．fulledA．make B．to make C．makes D．makingA．he B．him C．his D．herA．go B．got C．went D．goingA．on B．at C．in D．toA．David B．David's C．Davids D．Davids'A．are B．is C．was D．wereA．herself B．him C．her D．himself36.Sydney is a beautiful city on the east coast of Australia．It is also the city with the largestpopulation in the country．（31）______ ．The weather of Sydney is good．（32）______ The sky is blue and the air is fresh．Sydney is one of the most popular places to travel in the world．（33）______ Besides （除了…以外）wonderful beaches，Sydney has many other interesting places such as Sydney Tower．（34）______ When you are on the 305-metre tower，you will have a great view（视野）of the city．People living in Sydney like to call themselves Sydneysiders．（35）______ When they are not working，they love to have a good time at the beach．A．They are very friendly．B．It is the tallest building in the city．C．There are more than 4million people living in the city．D．Every year，millions of people come to the city for a visit．E．It's not too cold during the winter and not too hot during the summer．37.几个月前，我爸爸戒烟成功了．My father ______ smoking successfully months ago．38.不要叫醒他．让他多睡两个多小时吧！Don't ______ him ______ ．Let his sleep for two more hours．39.瓶子里装满了热水．The bottle ______ hot water．40.多年以前父亲对他的工作要求非常严格．Father ______ very ______ his work many years ago．41.在法国，你可以参观许多的名胜古迹．In France，you can visit lots of ______ ．42.广州以美食而出名．Guangzhou ______ delicious food．43.布朗宜家上个星期去度假了．The Browns ______ last week．44.当Judy有空的时候，她更喜欢待在家里看书．Judy ______ do some reading at home when she is free．45.每天，超过两百人来这个博物馆参观．______ two hundred people visit the museum every day．46.他既会说英语，也说西班牙语．He ______ English and Spanish ______ ．八、句子翻译（本大题共1小题，共2.0分）47.不用担心，没有人会取笑你的．Don't worry．Nobody will ______ you．答案和解析1.【答案】A【解析】答案：A．st air的音标是[steə（r）]；d eer的音标是[dɪə（r）]；ch eerful的音标是[ˈtʃɪəfl]；cl ear的音标是[klɪə（r）]，因此可知stair中的air音标与其他三项不一样，故选A．找出划线部分与其他三项不一样的单词首先要掌握这几个单词的发音，然后结合具体的题目，就可以确定正确答案．2.【答案】C【解析】答案：C．p oor的音标是[pʊə]；s ure 的音标是[ʃʊə（r）]；col our的音标是[ˈkʌlə（r）]；t our 的音标是[tʊə（r）]．因此可知col our中的our音标与其他三项不一样，故选C．找出划线部分与其他三项不一样的单词首先要掌握这几个单词的发音，然后结合具体的题目，就可以确定正确答案．3.【答案】A【解析】答案：A．dream的音标是[dri：m]；tree的音标是[tri：]；train的音标是[treɪn]；travel的音标是[ˈtrævl]．因此可知dream中的dr的音标与其他三项不一样，故选A．找出划线部分与其他三项不一样的单词首先要掌握这几个单词的发音，然后结合具体的题目，就可以确定正确答案．4.【答案】C【解析】答案：C．be ds的音标是bedz]；ri des的音标是[raɪdz]；ca ts的音标是[kæts]；rea ds的音标是[ri：dz]．因此可知ca ts中的ts音标与其他三项不一样，故选C．找出划线部分与其他三项不一样的单词首先要掌握这几个单词的发音，然后结合具体的题目，就可以确定正确答案．5.【答案】A【解析】答案：A．laugh的音标是[lɑ：f]；laun ch的音标[lɔ：ntʃ]；cat ch的音标是[kætʃ]；swit ch的音标是[swɪtʃ]．因此可知laugh中的gh的音标与其他三项不一样，故选A．找出划线部分与其他三项不一样的单词首先要掌握这几个单词的发音，然后结合具体的题目，就可以确定正确答案．6.【答案】【小题1】A 【小题2】B 【小题3】A 【小题4】D 【小题5】C【解析】考查细节理解题，根据文中的表格左边第一格I like my job because I like to fly in the sky．可知是飞行员，故答案A。
2016-2017广州天河区华师附中初一下期中考英语试卷
华南师大附中2016-2017学年度第二学期期中考试初一英语试卷第I卷（共四道大题。
满分70分）二、语言知识与运用（共20小题，满分15分）第一节单项选择（共10小题；每小题1分，满分10分）16. Silk is quite expensive because it feels ________ than cotton.A. much comfortableB. much more comfortableC. more comfortableD. much more comfortably17. —Do you like the pop singer Zhou Jielun or the move star Li Yifeng?—________. I am not their fan.A. BothB. AllC. NeitherD. Either18. —Would you like some drinks, boys?—Yes, ________, please.A. some orangesB. two boxes of chocolatesC. some cakesD. two bottles of orange19. He often gets ________ A or ________ B in his English exam.A. a; aB. a; anC. an; anD. an; a20. You’d better keep the window _________. It’ hot here.A. openB. openingC. openedD. opens21. —Many thanks for helping us so much.—_________.A. Sounds greatB. Not reallyC. No problemD. With pleasure22. There _______ a basketball match between Junior One and Junior Two this Friday afternoon.A. is going to haveB. will haveC. are going to beD. is going to be23. It’s lunch time. Let’s go on ________ it after lunch.A. doB. to doC. doingD. to doing24. The bag is not very heavy. Let’s the boy ________ it by ________.A. carry; himselfB. carries, himselfC. to carry; himD. carrying; his25. Shanghai is the largest city in China. It ________ in the eastern part.A. lieB. liesC. layD. lays第二节语法选择（共10小题，每小题0. 5分，满分5分）阅读下面短文，按照句子结构的语法性和上下文连贯的要求，从26-35各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
2016-2017学年下学期期中七年级数学试卷(word附答案)
2017~2018学年度七年级下学期期中模拟数学试卷（）满分：120分时间120分钟一、选一选，比比谁细心（本大题共10小题，每小题3分，共30分）1.下列实数是无理数的是（）A.3.14B.13C.D.2.下列所示的图案分别是奔驰、奥迪、大众、三菱汽车的车标，其中看作由“基本图案”经过平移得到的是（）D.C.B.A.3.实数9的算术平方根是（）A.3±B.C. D.34.点A（－2,1）所在象限为（）A.第一象限B.第二象限C.第三象限D.第四象限5.）A.0和1之间B.1和2之间C.2和3之间D.3和4之间6.下列图形中，由∠1=∠2，能得到AB//CD的是（）12GFEA BDCACDB21A. B. C. D.21DCBA7.如图，下列说法不正确的是（）A.∠AFE与∠EGC是同位角B.∠AFE与∠FGC是内错角C.∠C与∠FGC是同旁内角D.∠A与∠FGC是同位角8.交换下列命题的题设和结论，得到的新命题是假命题的是（）A.两直线平行，内错角相等;B.相等的角是对顶角;C.所有的直角都是相等的；D.若a=b,则a－1=b－1.9.点P关于x轴的对称点为(,1)a-，关于y轴的对称点为(2,)b-，那么点P的坐标是（）A.(,)a b- B.(,)b a C.(1,2)-- D.(2,1)10.△ABC三个顶点坐标(4,3)A--，(0,3)B-，(2,0)C-，将点B向右平移2个长度单位后，再向上平移5个长度单位到D，若设△ABC面积为1S，△ADC的面积为2S，则1S与2S大小关系为（）A.1S＞2S B.1S=2S C.1S＜2S D.不能确定二、仔细填一填，你一定很棒！（每小题3分，共18分）11.=_______.12.写出一个在x轴正半轴上的点坐标________________.13.如图，一把长方形直尺沿直线断开并错位，点E、D、B、F在同一条直线上，若∠ADE=125°，则∠DBC的度数为_________________.E87654321第13题图FABCD14.在平面直角坐标系中依次描出下列点，(2,3)--，(1,1)--，(0,1)，(1,3)，⋅⋅⋅，依照此规律，则第7个坐标是_________________.15.已知四边形ABCD，其中AD//BC，AB⊥BC，将DC沿DE折叠，C落于C'，DC'交CB于G，且ABGD为长方形（如图1）；再将纸片展开，将AD沿DF折叠，使A点落在DC上一点A'（如图2），在两次折叠过程中，两条折痕DE、DF所成的角为____________度.16.在平面直角坐标系中，任意两点A(a,b),B(m,n),规定运算：A B⊗=(-若A(9,－1),且A B⊗=(－6,3).则点B的坐标是______________.三、精心答一答，你一定能超越！（本大题共8小题，共72分）17. （本题8分）如图，∠1=30°，∠B=60°，AB⊥AC.（1）∠DAB+∠B等于多少度？（2）AD与BC平行吗？AB与CD平行吗？18.（每小题4分，共8分）计算：（1（219. （每小题4分，共8分）求下列各式中的x值.（1）2164x-=（2）3(1)64x-=7题B/A/C/DBACF E第15题图2DBACEG第15题图117题1BDAC20. （共8分）完成下面的证明（1）如图，FG //CD ，∠1=∠3，∠B =50°，求∠BDE 的度数. 解：∵FG //CD (已知)∴∠2=_________（ ） 又∵∠1=∠3， ∴∠3=∠2（等量代换）∴BC //__________（ ） ∴∠B +________=180°（ ） 又∵∠B =50°∴∠BDE =________________.21. （本题8分）△ABC 在平面直角坐标系中，且A (2,1)-、B (3,2)--A ，B 的对应点是1A ，1B ，C 的对应点1C 的坐标是(3,1)-. （1）在平面直角坐标系中画出△ABC ；（2）写出点1A 的坐标是_____________,1B 坐标是___________; （3）此次平移也可看作111A B C ∆向________平移了____________ 个单位长度，再向_______平移了______个单位长度得到△ABC .22. （本题10分）已知直线BC //ED .（1）如图1，若点A 在直线DE 上，且∠B =44°，∠EAC =57°，求∠BAC 的度数；（2）如图2，若点A 是直线DE 的上方一点，点G 在BC 的延长线上求证：∠ACG =∠BAC +∠ABC ； （3）如图3，FH 平分∠AFE ，CH 平分∠ACG ，且∠FHC 比∠A 的2倍少60°，直接写出∠A 的度数.AD BCE图1G图2ECBD AHF图3EBDA23. （本题10分）如图，在平面直角坐标系中，点A 、C 分别在x 轴上、y 轴上，CB //OA ，OA =8，若点B 的坐标为(a ,b )，且b 4.（1）直接写出点A 、B 、C 的坐标；（2）若动点P 从原点O 出发沿x 轴以每秒2个单位长度的速度向右运动，当直线PC 把四边形OABC分成面积相等的两部分停止运动，求P 点运动时间；（3）在（2）的条件下，在y 轴上是否存在一点Q ，连接PQ ，使三角形CPQ 的面积与四边形OABC 的面积相等？若存在，求点Q 的坐标；若不存在，请说明理由.24. （本题12分）在平面直角坐标系中，点A (t +1,t +2),点B (t +3,t +1),将点A 向右平移3个长度单位，再向下平移4个长度单位得到点C .（1）用t 表示点C 的坐标为_______;用t 表示点B 到y 轴的距离为___________;（2）若t =1时，平移线段AB ，使点A 、B 到坐标轴上的点1A 、1B 处，指出平移的方向和距离，并求出点1A 、1B 的坐标；（3）若t =0时，平移线段AB 至MN （点A 与点M 对应），使点Ｍ落在ｘ轴的负半轴上，三角形MNB 的面积为4，试求点M 、N 的坐标.第20题图12016～2017学年度下学期七年级数学期中参考答案一、选一选，比比谁细心1. C2.B3.D4.B5. C6. B7. A8.C9.D 10.A 二、仔细填一填，你一定很棒！ 11. 2- 12.答案不唯一，例如（3,0）13.55° 14.（4,9） 15. 45 16.（2，27-） 三、精心答一答，你一定能超越！17.解：（1）∵AB ⊥AC ，∴∠BAC =90°，∴∠B +∠BAD =60°+90°+30°=180°. （2）由（1）得AD //BC ，但是无法确定AB 与CD 的关系. 18.解：（1）原式=6-0.9=5.1 （2）原式=1324-+－1=－32+34 19.解：（1）2254x =，∴52x =±； （2）(1)x -=x －1=4, ∴x =5.20. （1）∠1（两直线平行，同位角相等）；DE （内错角相等，两直线平行）； ∠BDE （两直线平行，同旁内角互补）；130°. （2）∠ADC =∠EFC ；EF ；∠2；∠CAD .21.（1）（2）1(0,4)A ，1B (1,1)-（3）下；3；左；2.22.解：（1）∵BC //ED ，∴∠BAE +∠B =180°，∴∠BAC =180°－∠B －∠EAC =79°；（2）F 2F 1方法②方法①G图2E C BDA如图，方法①，作AF //BC ，又∵BC //ED ，∴AF //ED //BC ,∴∠F AC =∠ACG ,且∠ABC =∠F AB ，∴∠ACG =∠F AC =∠BAC +∠F AB =∠BAC +∠ABC . （3）MNyx y xGHF图3E CBDA作AM //BC ,HN //BC , ∴可证AM //BC //ED ，HN //BC //ED ，又设∠ACH =GCH =x , ∠AFH =EFH =y ， ∴∠A =2x －2y , ∠FHC =x －y ，∴∠A =2∠FHC ，又∵∠FHC =2∠A －60°，∴∠A =40°.23.（1）A （8,0），B （4,4），C （0.4）；（2）设运动时间t 秒，∴OP =2t , ∴12⋅2t ⋅4=(8－2t )⋅4，∴t =83.（3）设Q （0，y ）, ∵OABC CPQ S S ∆=四边形,∴12-4y 2t ⋅=12(4+8)⋅4， ∴1y =13，2y =－5，∴1Q （0,13），2Q （0，－5） 24.（1）C （t +4,t －2）;3t +（2）当t =1时，A （2,3），B （4,2）将AB 左平移2个单位得1A （0,3）；1B （2,2）； 将AB 下平移2个单位得1A （2,1）；1B （4,0）（3）若t=0,则A（1,2），B（3,1）设A下平移2个单位，再左平移a个单位到达x轴负半轴，∴M（1－a,0）,N（3－a,－1），∴（3－1+a）⋅2－12(3－1+a)⋅1－12(3－a－1+a)⋅1－12(3－3+a)⋅2=4，∴a=4，∴M(－3,0)，N（－1，－1）.（范文素材和资料部分来自网络，供参考。
广州市七年级英语期中试卷含答案
广州市七年级英语期中试卷含答案-CAL-FENGHAI.-(YICAI)-Company One1广州市第二学期七年级英语期中试卷一、语法选择（共10小题，每小题1分，满分10分）I was living in London last year. One day, I 1 to a dinner party with some English friends. I learned a lot about table mannerin England: When they 2 , they use a kinfe and fork as we can see 3 TV. They use the knife to cut food, 4 they never use it to pick up food. They use 5 fingers to pick up food.At table, everyone ate 6 . I found that one of my friends was eating soup. She used 7 spoon to take the soup to her mouth. She never lifted the bowl to her mouth.During the dinner, she didn’t say 8 . When I talked to her, she only nodded with a smile. She 9 opened her mouth to talk when there was food in it. I understand most people in Western countries don’t like to see food in another person’s mouth. They also don’t like people 10 or pick their teeth at table.( )1. A. went B. go C. goesD. going( )2. A. eat B. were eating C. will eatD. ate( )3. A. in B. on C. at D. over( )4. A. and B. or C. so D. but( )5. A. them B. themselves C. theirs D. their( )6. A. quiet B. more quiet C. quietly D.more quietly( )7. A. an B. a C. the D. / ( )8. A. lots of B. a lot of C. much D. many( )9. A. always B. usually C. sometimes D. never ( )10. A. to smoke B. smoking C. smoke D. smoked二、完形填空（共10小题，每小题1.5分，满分15分）Trees are our friends. They help us in many ways. They keep the air 11 and clean .They take in 12 gases from the air and produce oxygen for us to 13 . In fact, we get a lot from trees. We get 14 and oil from them. Tea also comes from the leaves of trees. A lot of the furniture is made of wood, such as desks, chairs and tables. Forests are home to thousands of animals and insects. However, people are destroying the forests by 15 down many trees. Many living things 16 their homes because people cut down too many trees. As a result, the 17 of kinds of animals, birds, insects and trees in the world is decreasing (减少) 18 .Trees are very 19 in our daily lives. We must do our best to 20 the trees. Let’s start out small.( )11. A. warm B. cool C. hot D. cold( )12. A. useful B. expensive C. harmful D. safe( )13. A. breathe B. drink C. eat D. play( )14. A. bread B. fruit C. milk D. cake( )15. A. sitting B. planting C. getting D. cutting( )16. A. lose B. have C. get D. build( )17. A. family B. number C. home D. ways( )18. A. carefully B. politely C. patiently D. quickly( )19. A. useless B. interesting C. important D.dangerous( )20. A. kill B. destroy C. burn D. protect三、阅读(共两节，满分45分)第一节、阅读理解(共20小题；每小题2分，满分40分)阅读下列短文，从每题所给的四个选项中选出最佳选项。
2016-2017学年度第二学期期中考试七年级数学试卷(word版有答案)
2017~2018学年度七年级下学期期中模拟数学试卷（ ）一.你一定能选对(每小题3分，共30分) 1.下列选项中能由左图平移得到的是()DCBA2.下列所给数中，是无理数的是 ( ) A. 2 B.27C.0.2•D.3.如图，小手覆盖的点的坐标可能是( ) A. (-1,1) B. (-1,-1) C.(1,1) D. (1,-1)4.如图，直线AB 、CD 相交于点O,OA 平分∠EOC,且∠EOC=70°,则∠BOD 等于( ) A. 40° B. 35° C. 30° D. 20°5.将点A(-3，-5)向右平移2个单位,再向下平移3个单位得到点B,则点B 的坐标为( ) A. (-5,-8) B. (-5,-2) C. (-1,-8) D. (-1,-2)6.下列各式正确的是( )= ±3B.±4C.D.7.下列结论中: ①若a=b,,②在同一平面内,若a ⊥b,b//c,则a ⊥c;③直线外一点到直线的垂线段叫点到直的距离;④正确的个数有( )A. 1个 B .2个 C.3个 D.4个8.如图,下列条件: ①∠1=∠2;②∠3=∠4;③∠B=∠DCE;④AD//BC 且∠B=∠D, 其中,能推出AB//DC 的是( ) A. ①④ B. ②③ C. ①③ D. ①③④9.如下表:被开方数a,=180，且则被开方数a 的值为( ) A. 32.4 B. 324 C. 32400 D. -324010. 如图,把一张两边分别平行的纸条折成如图所示,EF 为折痕,ED 交BF 于点G,且∠EFB=45°,则下列结论: ①∠DEF=48°;②∠AED=84°;③∠BFC=84°; ④∠DGF=96°,其中正确的个数有( ) A. 4个 B.3个 C.2个 D.1个二.填空题(6小题,每题3分，共18分) 11.计算12.若点M(a-3,a+4)在x 轴上,则a=______;13.如图,DE//AB,若∠A=50°, 则∠ACD=________; 14.如图,以数轴的单位长度线段为边做一个正方形,以表示数2的点为圆心,正方形对角线长为半径画半圆,交数轴于点A 和点B,则点A 表示的数是_________.15.已知线段AB//x 轴,且AB=3，若点A 的坐标为(-1,2),则点B 的坐标为_______;16.如图,小明从A 出发沿北偏东60°方向行走至B 处,又沿北偏西20°方向行走至C 处,此时需把方向调整到与出发时一致,则方向的调整应是右转__________°. 三.解下列各题(本题共8小题,共72分) 17.(8分)求下列各式的值: (1)x 2-25=0(2)x 3-3=3818.(8分)如图,在三角形ABC 中,D 是AB 上一点,E 是AC 上一点, ∠ADE=60°, ∠B=60°， ∠AED=40°； (1)求证: DE//BC; (2)求∠C 的度数；19.(8分)看图填空,并在括号内注明理由依据, 解: ∵∠1=30°, ∠2=30° ∴∠1=∠2∴_______//________(______________________________________________)又AC ⊥AE(已知)∴∠EAC=90°∴∠EAB=∠EAC+∠1=120°同理: ∠FBG=∠FBD+∠2=_________°.∴∠EAB=∠FBG(________________________________).∴______________//____________(同位角相等,两直线平行)x第4题图BA第8题图B第10题图B13题图D E14题图16题图B G20. (8分)如图,在边长为1的小正方形组成的网格中,A 、B 、C 、D 、E五点都是格点.(1) 请在网格中建立合适的平面直角坐标系,使点A 、B 两点坐标分别 是A(-3，0)、B(2，-1).(2)在(1)条件下,请直接写出C 、D 、E 三点的坐标;(3)则三角形BDE 的面积为_____________.21.(8分) 小丽想用一块面积为400cm 2的正方形纸片,沿着边的方向裁处一块面积为300cm2的长方形纸片.(1)请帮小丽设计一种可行的裁剪方案;(2)若使长方形的长宽之比为3:2,小丽能用这块纸片裁处符合要求的纸片吗？若能,请帮小丽设计一种裁剪方案,若不能，请简要说明理由.22.(10分)如图,已知∠A=∠AGE, ∠D=∠DGC. (1)求证:AB//CD;(2)若∠2+∠1=180°,且∠BEC=2∠B+30°,求∠C 的度数;23.(10分)如图1,已知AB//CD, ∠B=30°，∠D=120°; (1)若∠E=60°，则∠E=______;(2)请探索∠E 与∠F 之间满足的数量关系?说明理由.(3)如图2,已知EP 平分∠BEF,FG 平分∠EFD,反向延长FG 交EP 于点P ,求∠P 的度数;24.(12分)已知，在平面直角坐标系中,AB ⊥x 轴于点B,点A(a,b)平移线段AB 使点A 与原点重合,点B 的对应点为点C.(1)则a=____,b=____;点C 坐标为________; (2)如图1,点D(m,n)在线段BC 上,求m 、n 满足的关系式;(3)如图2,E 是线段OB 上一动点,以OB 为边作∠G=∠AOB,,交BC 于点G ，连CE 交OG 于点F,的当点E 在线段OB 上运动过程中,OFC FCGOEC∠+∠∠的值是否会发生变化?若变化请说明理由,若不变,请求出其值.23题图1C23题图2C第22题图24题图1x2016～2017学年度七年级第二学期期中测试数学参考答案一、选择题(本大题共10个小题，每小题3分，共30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.请将正确答案的标号填在下面的表格中.)二、填空题(本大题共6个小题，每小题3分，共18分.把答案填在题中横线上.)11．5312．-4 13．50 14．2-215．（-4，2）或（1，2）16．80三、解答题：（本大题共8个小题.共72分.解答应写出文字说明、证明过程或演算步骤.）17．解：①x2=25…………（2分）x=5…………（4分）②x2=278…………（6分）∴x=327 8∴x=32…………（8分）18．解：（1）∵∠ADE=∠B=60°…………（2分）∴DE∥BC…………（4分）（2）∵DE∥BC∴∠C=∠AED…………（6分）又∵∠C=40°∴∠AED =40°…………(8分)．19．解：∵∠1=30°，∠2=30°（已知），∴∠1=∠2．∴AC∥BD（同位角相等，两直线平行）．又∵AC⊥AE（已知），∴∠EAC=90°．（垂直定义）∴∠EAB=∠EAC+∠1=120°．同理：∠FBG=∠FBD+∠2= 120°．∴∠EAB=∠FBG（等式性质）．∴AE∥BF（同位角相等，两直线平行）．注：（本题每空1分，共8分）．20．（1）建立如图所示的平面直角坐标系…………（3分）注：两坐标轴与坐标原点正确各1分，共3分；(2)点C、D、E的坐标分别是C（-2，2）、D（0，-2）、E（2，3）…………（6分）注：每个点的坐标各1分，共3分；（3）则三角形BDE的面积= 4 ．…………(8分)21．（1）解：设面积为400cm2的正方形纸片的边长为a cm∴a2=400…………（1分）又∵a＞0∴a=20…………（2分）又∵要裁出的长方形面积为300cm2∴若以原正方形纸片的边长为长方形的长，则长方形的宽为：300÷20=15（cm）…………（3分）∴可以以正方形一边为长方形的长，在其邻边上截取长为15cm的线段作为宽即可裁出符合要求的长方形…………（4分）注：本题其它解法只要符合题意即可．（2）∵长方形纸片的长宽之比为3：2∴设长方形纸片的长为3x cm，则宽为2x cm…………（5分）∴6x 2=300∴x 2=50…………（6分）又∵x＞0∴x=52∴长方形纸片的长为152又∵2152=450＞202即：152＞20…………（7分）∴小丽不能用这块纸片裁出符合要求的纸片…………（8分）注：本题其它解法参照评分22．证明：（1）∵∠A =∠AGE，∠D =∠DGC又∵∠AGE =∠DGC…………(1分)∴∠A=∠D…………(2分)∴AB∥CD…………(4分)(2) ∵∠1+∠2 =180°又∵∠CGD +∠2=180°∴∠CGD=∠1∴CE∥FB…………(5分)∴∠C=∠BFD，∠CEB +∠B=180°…………(6分)又∵∠BEC =2∠B+30°∴2∠B +30°+∠B=180°题号 1 2 3 4 5 6 7 8 9 10答案C D D B C C B D C A 第18题图EDCBA第19题图yxOEDCBA第22题图21FHGEDCBA∴∠B =50°…………(7分) 又∵AB ∥CD ∴∠B =∠BFD∴∠C =∠BFD =∠B =50°…………(8分) 注：本题其它解法参照评分23．证：（1）若∠E =60°，则∠F = 90°；…………(2分) （2）如图1，分别过点E ，F 作EM ∥AB ，FN ∥AB ∴EM ∥AB ∥FN …………(3分)∴∠B =∠BEM =30°，∠MEF =∠EFN …………(4分) 又∵AB ∥CD ，AB ∥FN ∴CD ∥FN∴∠D +∠DFN =180° 又∵∠D =120°∴∠DFN =60°…………(5分)∴∠BEF =∠MEF +30°，∠EFD =∠EFN +60° ∴∠EFD =∠MEF +60°∴∠EFD =∠BEF +30°…………(6分)（3）如图2，过点F 作FH ∥EP 由（2）知，∠EFD =∠BEF +30°设∠BEF =2x °，则∠EFD =（2x +30）° ∵EP 平分∠BEF ，GF 平分∠EFD ∴∠PEF =21∠BEF =x °，∠EFG =21∠EFD =（x +15）°…………(7分) ∵FH ∥EP∴∠PEF =∠EFH =x °，∠P =∠HFG …………(8分) ∵∠HFG =∠EFG -∠EFH =15°…………(9分) ∴∠P =15°…………(10分)注：本题其它解法参照评分．24．（1）a = 4 ；b = 2 ；点C 的坐标为（0，-2）．…………(3分)（2）如图1，过点D 分别作DM ⊥x 轴于点M ， DN ⊥y 轴于点N ，连接OD ． ∵AB ⊥ x 轴于点B ，且点A ，D ，C 三点的坐标分别为：（4，2），（m ，n ），（0，-2）∴OB =4，OC=2，MD =-n ，ND =m …………(4分)∴ S △BOC =12错误!未找到引用源。
2017年广东省广州外国语学校七年级下学期数学期中试卷与解析答案
2016-2017学年广东省广州外国语学校七年级（下）期中数学试卷一、选择题（本大题共10小题，每小题3分，共30分）1．（3分）点M（5，3）在第（）象限．A．第一象限B．第二象限C．第三象限D．第四象限2．（3分）下列等式中，错误的是（）A．B．C．D．3．（3分）已知点M（3a﹣9，1﹣a）在x轴上，则a=（）A．1 B．2 C．3 D．O4．（3分）用加减消元法解方程组时，有下列四种变形，正确的是（）A．B．C．D．5．（3分）将一直角三角板与两边平行的纸条如图所示放置，下列结论：（1）∠1=∠2；（2）∠3=∠4；（3）∠2+∠4=90°；（4）∠4+∠5=180°，其中正确的个数是（）A．1 B．2 C．3 D．46．（3分）如图，AB∥CD，ME⊥MF，∠EAB=36°，则∠FCD=（）度．A．51°B．52°C．53°D．54°7．（3分）班级组织有奖知识竞赛，小明用100元班费购买笔记本和钢笔共30件，已知笔记本每本2元，钢笔每支5元，那么小明最多能买钢笔（）A．20支B．14支C．13支D．10支8．（3分）若a+b=3，a﹣b=7，则ab=（）A．﹣10 B．﹣40 C．10 D．409．（3分）已知|a|=5，=7，且|a+b|=a+b，则a﹣b的值为（）A．2或12 B．2或﹣12 C．﹣2或12 D．﹣2或﹣1210．（3分）以二元一次方程组的解为坐标的点（x，y）在平面直角坐标系的（）A．第一象限B．第二象限C．第三象限D．第四象限二、填空题：（本大题共10小题，每小题3分，共30分）11．（3分）点A（3，a）在x轴上，点B（b，﹣2）在y轴上，则a=，b=．12．（3分）若+（n+1）2=0，则m+n的值为．13．（3分）A到x轴距离为3，到y轴的距离为4，且A点在第三象限，则点A 的坐标为．14．（3分）方程2x+y=10的正整数解的个数是．15．（3分）的算术平方根是．16．（3分）若方程（m2﹣9）x2﹣（m﹣3）x+2y+1=0是关于x，y的二元一次方程，则m的值为．17．（3分）有一个两位数，它的两个数字之和为11，把这个两位数的个位数字与十位数字对调，所得的新数比原数大63，设原两位数的个位数字为x，十位数字为y，则用代数式表示原两位数为，根据题意得方程组．18．（3分）如果两个角的一边在同一直线上，而另一边互相平行，那么这两个角．19．（3分）若x2=9，y3=﹣8，则x+y=．20．（3分）把一张纸各按图中那样折叠后，若得到∠AOB′=70°，则∠B′OG=度．三、解答题：（本大题共7小题，满分90分．解答应写出文字说明、说理过程或计算步骤）21．（30分）①﹣+|﹣π|+．②已知=x，=2，z是9的平方根，求2x+y﹣5z的值．③3（x+1）2=48，求x．④已知点P（m+3，m+1）在直角坐标系的坐标轴上，求m的值与点P的坐标．⑤用适当的方法解下列方程组：．22．（8分）把99分成四个整数的和，其中一个数加上2，一个数减去2，一个数乘2，一个数除以2，所得结果相同．求这四个数．23．（8分）如图，△ABC中，∠A=50°，∠B=70°，CD平分∠ACB，DE交AB于D 交AC于E，∠CDE=30°，求∠ADE的度数．24．（10分）如图，△ABC中任意一点P（x0，y0）经平移后对应点为P′（x0+5，y0﹣3），将△ABC作同样的平移得到△A′B′C′．（1）在图中画出△A′B′C′，并写出A′，B′，C′的坐标．（2）求出△A′B′C′的面积．25．（10分）如图，在3×3的方格内，填写了一些代数式和数．（1）在图中各行、各列及对角线上三个数之和都相等，请你求出x，y的值．（2）把满足（1）的其它6个数填入图（2）中的方格内．26．（10分）如图所示，△ABO中，A，B两点的坐标分别为（2，4），（7，2），C，G，F，E分别为过A，B两点所作的y轴、x轴的垂线与y轴、x轴的交点．求△AOB的面积．27．（14分）列方程（组）解应用题为改善办学条件，某中学计划购买A品牌电脑和B品牌课桌，第一次，用9万元购买了A品牌电脑10台和B品牌课桌200张，第二次，用9万元购买了A品牌电脑12台和B品牌课桌120张．（1）每台A品牌电脑与每张B品牌课桌的价格各是多少元？（2）第三次购买时，销售商对一次购买量大的客户打折销售，规定：一次购买A品牌电脑35台以上（含35台），按九折销售；一次购买B品牌课桌600张以上（含600张），按八折销售，学校准备用27万元整购买电脑和课桌，其中电脑不少于35台，课桌不少于600张，有哪几种购买方案？2016-2017学年广东省广州外国语学校七年级（下）期中数学试卷参考答案与试题解析一、选择题（本大题共10小题，每小题3分，共30分）1．（3分）点M（5，3）在第（）象限．A．第一象限B．第二象限C．第三象限D．第四象限【解答】解：点M（5，3）在第一象限．故选：A．2．（3分）下列等式中，错误的是（）A．B．C．D．【解答】解：A、±=±8，故本选项正确；B、=，故本选项错误；C、=﹣6，故本选项正确；D、=﹣0.1，故本选项正确．故选：B．3．（3分）已知点M（3a﹣9，1﹣a）在x轴上，则a=（）A．1 B．2 C．3 D．O【解答】解：∵点M（3a﹣9，1﹣a）在x轴上，∴1﹣a=0，解得a=1．故选：A．4．（3分）用加减消元法解方程组时，有下列四种变形，正确的是（）A．B．C．D．【解答】解：，①×2得，4x+6y=2，②×3得，9x﹣6x=30，原方程组可化为．故选：C．5．（3分）将一直角三角板与两边平行的纸条如图所示放置，下列结论：（1）∠1=∠2；（2）∠3=∠4；（3）∠2+∠4=90°；（4）∠4+∠5=180°，其中正确的个数是（）A．1 B．2 C．3 D．4【解答】解：∵纸条的两边平行，∴（1）∠1=∠2（同位角）；（2）∠3=∠4（内错角）；（4）∠4+∠5=180°（同旁内角）均正确；又∵直角三角板与纸条下线相交的角为90°，∴（3）∠2+∠4=90°，正确．故选：D．6．（3分）如图，AB∥CD，ME⊥MF，∠EAB=36°，则∠FCD=（）度．A．51°B．52°C．53°D．54°【解答】解：过点M作MN∥AB，∵AB∥CD，∴AB∥CD∥MN，∴∠AMN=∠EAB=36°，∵ME⊥MF，∴∠AMC=90°，∴∠NMC=90°﹣36°=54°，∴∠FCD=54°．故选：D．7．（3分）班级组织有奖知识竞赛，小明用100元班费购买笔记本和钢笔共30件，已知笔记本每本2元，钢笔每支5元，那么小明最多能买钢笔（）A．20支B．14支C．13支D．10支【解答】解：设小明最多能买钢笔x支，则小明买笔记本（30﹣x）本，故5x+2（30﹣x）≤100，解得x≤13．因为钢笔的支数应为整数，故小明最多能买钢笔13支．故选：C．8．（3分）若a+b=3，a﹣b=7，则ab=（）A．﹣10 B．﹣40 C．10 D．40【解答】解：方法一∵，∴，则ab=﹣10；方法二：由a+b=3、a﹣b=7可得（a+b）2=9、（a﹣b）2=49，即a2+2ab+b2=9 ①、a2﹣2ab+b2=49 ②，①﹣②，得：4ab=﹣40，所以ab=﹣10，故选：A．9．（3分）已知|a|=5，=7，且|a+b|=a+b，则a﹣b的值为（）A．2或12 B．2或﹣12 C．﹣2或12 D．﹣2或﹣12【解答】解：∵|a|=5，∴a=±5，∵=7，∴b=±7，∵|a+b|=a+b，∴a+b＞0，所以当a=5时，b=7时，a﹣b=5﹣7=﹣2，当a=﹣5时，b=7时，a﹣b=﹣5﹣7=﹣12，所以a﹣b的值为﹣2或﹣12．故选：D．10．（3分）以二元一次方程组的解为坐标的点（x，y）在平面直角坐标系的（）A．第一象限B．第二象限C．第三象限D．第四象限【解答】解：，①+②得：4y=8，解得：y=2，把y=2代入②得：x=1，则（1，2）在第一象限，故选：A．二、填空题：（本大题共10小题，每小题3分，共30分）11．（3分）点A（3，a）在x轴上，点B（b，﹣2）在y轴上，则a=0，b= 0．【解答】解：∵点A（3，a）在x轴上，∴a=0，∵点B（b，﹣2）在y轴上，∴b=0．故答案为：0；0．12．（3分）若+（n+1）2=0，则m+n的值为2．【解答】解：∵+（n+1）2=0，∴，解得m=3，n=﹣1，∴m+n=3+（﹣1）=2．故答案为：2．13．（3分）A到x轴距离为3，到y轴的距离为4，且A点在第三象限，则点A 的坐标为（﹣4，﹣3）．【解答】解：∵A到x轴距离为3，到y轴的距离为4，且A点在第三象限，∴点A的横坐标是﹣4，纵坐标是﹣3，∴点A的坐标为（﹣4，﹣3）．故答案为：（﹣4，﹣3）．14．（3分）方程2x+y=10的正整数解的个数是4．【解答】解：方程2x+y=10，解得：y=10﹣2x，可得x=1，y=8；x=2，y=6；x=3，y=4；x=4，y=2，则方程的正整数解个数为4．故答案为：415．（3分）的算术平方根是．【解答】解：∵=3，∴的算术平方根是．故答案为：．16．（3分）若方程（m2﹣9）x2﹣（m﹣3）x+2y+1=0是关于x，y的二元一次方程，则m的值为﹣3．【解答】解：由题意，得m2﹣9=0且m﹣3≠0，解得m=﹣3，故答案为：﹣3．17．（3分）有一个两位数，它的两个数字之和为11，把这个两位数的个位数字与十位数字对调，所得的新数比原数大63，设原两位数的个位数字为x，十位数字为y，则用代数式表示原两位数为10y+x，根据题意得方程组．【解答】解：根据数位的意义，该两位数可表示为10y+x．根据有一个两位数，它的两个数字之和为11，可得方程x+y=11；根据把这个两位数的个位数字与十位数字对调，所得的新数比原数大63，可得方程（10x+y）﹣（10y+x）=63．那么方程组是．故答案为：10y+x，．18．（3分）如果两个角的一边在同一直线上，而另一边互相平行，那么这两个角相等或互补．【解答】解：如图，分两种情况：①∠A与∠1的一边在直线AC上，另一边AB∥DE，∴∠1=∠A；②∠A与∠2的一边在直线AC上，另一边AB∥DF，∵∠1+∠2=180°，∠1=∠A，∴∠2+∠A=180°．综上，可知这两个角的关系是相等或互补．故答案为：相等或互补．19．（3分）若x2=9，y3=﹣8，则x+y=﹣5或1．【解答】解：∵x2=9，y3=﹣8，∴x=±3，y=﹣2，故x+y=﹣5或1．故答案为：﹣5或1．20．（3分）把一张纸各按图中那样折叠后，若得到∠AOB′=70°，则∠B′OG=55度．【解答】解：由题意可得∠B′OG=∠BOG，则∠B′OG=（180﹣∠AOB′）÷2=55°．故答案为55．三、解答题：（本大题共7小题，满分90分．解答应写出文字说明、说理过程或计算步骤）21．（30分）①﹣+|﹣π|+．②已知=x，=2，z是9的平方根，求2x+y﹣5z的值．③3（x+1）2=48，求x．④已知点P（m+3，m+1）在直角坐标系的坐标轴上，求m的值与点P的坐标．⑤用适当的方法解下列方程组：．【解答】解：①原式=﹣+π﹣+=π﹣；②由题意得x=5、y=4，z=±3，当z=3时，2x+y﹣5z=10+4﹣15=﹣1；当z=﹣3时，2x+y﹣5z=10+4+15=29；③∵3（x+1）2=48，∴（x+1）2=16，则x+1=4或x+1=﹣4，解得：x=3或x=﹣5；④∵点P（m+3，m+1）在坐标轴上，∴m+3=0或m+1=0，∴m=﹣3或m=﹣1，∴点P（0，﹣5）或（﹣1，0）．⑤整理，得：，②﹣①，得：4x=22，解得：x=，将x=代入①，得：﹣3y=﹣2，解得：y=，∴方程组的解为．22．（8分）把99分成四个整数的和，其中一个数加上2，一个数减去2，一个数乘2，一个数除以2，所得结果相同．求这四个数．【解答】解：设相同的结果为a，这四个数为a﹣2，a+2，a，2a，根据题意得：a﹣2+a+2+a+2a=99，解得：a=22，则这四个数是20，24，11，44．23．（8分）如图，△ABC中，∠A=50°，∠B=70°，CD平分∠ACB，DE交AB于D 交AC于E，∠CDE=30°，求∠ADE的度数．【解答】解：∵∠A=50°，∠B=70°，∴∠ACD=60°，∵CD平分∠ACB，∴∠ACD=ACB=30°，∴∠AED=∠EDC+∠ACD=60°，∴∠ADE=180°﹣∠A﹣∠AED=70°，24．（10分）如图，△ABC中任意一点P（x0，y0）经平移后对应点为P′（x0+5，y 0﹣3），将△ABC作同样的平移得到△A′B′C′．（1）在图中画出△A′B′C′，并写出A′，B′，C′的坐标．（2）求出△A′B′C′的面积．【解答】解：（1）如图，△A′B′C′即为所求，A′（4，﹣1），B′（3，﹣4），C′（8，﹣3）；=3×5﹣×1×5﹣×2×4﹣×1×3（2）S△A′B′C′=15﹣﹣4﹣=7．25．（10分）如图，在3×3的方格内，填写了一些代数式和数．（1）在图中各行、各列及对角线上三个数之和都相等，请你求出x，y的值．（2）把满足（1）的其它6个数填入图（2）中的方格内．【解答】解：（1）由题意得，解得．（2）填图如下：26．（10分）如图所示，△ABO中，A，B两点的坐标分别为（2，4），（7，2），C，G，F，E分别为过A，B两点所作的y轴、x轴的垂线与y轴、x轴的交点．求△AOB的面积．【解答】解：∵A（2，4），B（7，2），∴AC=2、CO=4、OE=7、BE=2、AF=4、EF=OE﹣OF=7﹣2=5，=S矩形ACOF+S梯形AFEB﹣S△ACO﹣S△BOE，由图可知，S△AOB=2×4+（2+4）×5﹣×2×4﹣×7×2，=8+15﹣4﹣7，=23﹣11，=12．27．（14分）列方程（组）解应用题为改善办学条件，某中学计划购买A品牌电脑和B品牌课桌，第一次，用9万元购买了A品牌电脑10台和B品牌课桌200张，第二次，用9万元购买了A品牌电脑12台和B品牌课桌120张．（1）每台A品牌电脑与每张B品牌课桌的价格各是多少元？（2）第三次购买时，销售商对一次购买量大的客户打折销售，规定：一次购买A品牌电脑35台以上（含35台），按九折销售；一次购买B品牌课桌600张以上（含600张），按八折销售，学校准备用27万元整购买电脑和课桌，其中电脑不少于35台，课桌不少于600张，有哪几种购买方案？【解答】解：（1）设每台A品牌电脑m元，每张B品牌课桌n元，则有，解得．答：每台A品牌电脑6000元，每张B品牌课桌150元．（2）有两种方案．设购电脑x台，则课桌有张，则有解得：35≤x≤36，则x=35或36．x=35时，=675（张）；x=36时，=630（张）．方案①：购电脑35台，课桌675张；方案②：购电脑36台，课桌630张．赠送：初中数学几何模型举例【模型四】几何最值模型：图形特征：BAPl运用举例：1. △ABC中，AB=6，AC=8，BC=10，P为边BC上一动点，PE⊥AB于E，PF⊥AC于F，M为AP的中点，则MF的最小值为EM FB2.如图，在边长为6的菱形ABCD中，∠BAD＝60°，E为AB的中点，F为AC上一动点，则EF+BF的最小值为_________。
2017-2018学年广东广州天河区天河外国语学校七年级下学期期中考试数学试卷
2017-2018学年广东广州天河区天河外国语学校七年级下学期期中考试数学试卷一、选择题（本大题共10小题，每小题3分，共30分，在每小题给出的四个选择项中，只有一项是符合题目要求的）1. 下列各图中，与是对顶角的是（ ）∠1∠2A. B. C. D.2. 下列命题中，正确的是（ ）A.互补的角是邻补角B.一条直线有且只有一条垂线C.同位角相等D.两直线平行，同旁内角相等3. 如图所示，三角尺和直尺所夹的和的数量关系是（ ）∠1∠2A. B.∠1=∠2 ∠1+∠2=180° C. D.不能确定∠1+∠2=90°4. 在下列各数：0.05005005005…，，0.2，，，，中，无理数的个数是（）491001π713111327 A.2个 B.3个 C.4个 D.5个5. 下列说法正确的是（ ）5A.9的平方根是-3B.的平方等于59C.1的平方根是1D.的算术平方根是3x y36. 在轴上，距离轴距离为的点的坐标是（）3（3，0）A.（0，）B.333，03，0C.（0，）和（0，-）D.（）和（-）7. 如图所示，点E在AC延长线上，下列条件中能判断AB//CD（）○1∠3=∠4 ○2∠1=∠2○3∠D=∠DCE○4∠D+∠ABD=180°○5∠D=∠A○1○3○5○1○3○4A. B.○2○4○2○5C. D.8.如图是在方格纸上画出的小旗图案，若用（0，0）表示点A，（0，4）表示表B，那么点C的位置可表示为（）A.（0，3）B.（3，2）C.（2，3）D.（3，0）°9. 如图，C岛在A岛的北偏东50方向，从C岛看A、B∠ACB160°两岛的视角的度数是，在B岛看C岛方向是（）70°°A. 北偏西B.南偏西70C.正西方向D.南偏西80°10.如图，△ABC的顶点分别是A（0，2）、B（-2，-2）、C（1，-2），把C点向右移一格，再上C1C1C2移两格得到，把点向右移一格，再上移两格得到，记△ABC的面积为S，△ABC1的面积为，则S 、、的大小关系是（ ）S 2S 1S 2 A. S>>B. S<< S 1S 2S 1S 2C. S==D.无法确定S 1S 2二、填空题（本大题共6小题，每小题3分，共18分）11. 已知，则=_________.2x 2=32x 12. 图中阴影部分的面积是______.13. 比较大小：_____253214. 如图所示，AB//CD ，CB DB ，，则⊥∠1=30°∠2=________.15. 若，则=________.y =1‒x +2x ‒2+4y x 16. 实数在数轴上的对应点如图所示，则=_____.a, b, c (b +1)2+ a 2‒ (c ‒1)2三、解答题（本大题共9题，共102分，解答应写出文字说明、证明过程或演算步骤.）17,计算：（1） （2）求满足的的值0.09‒0.36+31‒3764‒2x 3‒250=0x 18.解方程：（1） （2）{m 5‒n 4=1m 3+n 2=‒16x2=y 3=x +y +1419.如图，在平面直角坐标系中有△ABC.（1）画出△ABC 沿北偏东方向，距离为1.5AB 平移所得的图.45°∆A 'B 'C'（2）请计算AB 的长.20.从甲地到乙地的路有一段上坡与一段平路.如果保持上坡每小时走3km ，平路每小时走4km ，下坡每小时走5km ，那么从甲地到乙地需54分，从乙地到甲地需要42分.甲地到乙地全程是多少？∠1=∠2∠3=∠421.已知：如图，AB//CD,，. 求证：AD//BE.3a b3b+ab=2.22.已知整数部分是，小数部分是，求证：∠ABC∠ACD23.如图，BE是的角平分线，CE是的平分线.（1）请填空：若_____,则CE//AB.∠A=2∠E（2）在（1）的基础上证明.24.今有鸡翁一，值钱五，鸡母一，值钱三，鸡雏三，值钱一，百钱买百鸡，鸡翁，鸡母，鸡雏都买，可各买多少？25.记点P（a,b）.（1）请在图1坐标中描出点P的5个可能位置，使得a+b=-4，这些点的位置特点是_______.如果点（-1.8，m）也符合（1）中所标的点的排列规律，m=______.（2）观察图2，如果点P符合此图的点的排列规律，a和b应满足的关系式是_____.○1○2○3l（3）请尝试计算同时满足“a>b, a+b>-4, 位于图2中直线左侧”的点P所处区域的面积.。
2016-2017广东广州天河广外外设初一下期中
七年级下学期期上质量检测数学试题（一）一、细心选一选（本题有10个小题，每小题3分，满分30分，下面每小题给出的四个选项中，只有一个是正确的．）1．下列各图中，1与2是对顶角的是（）．A ．B ．C ．D ．【选择】B 【解答】A.1与2不是对顶角，故A 选项错误； B.1与2是对顶角，故B 选项正确； C.1与2不是对顶角，故C 选项错误； D.1与2不是对顶角，故D 选项错误.2．点(3,5)P 所在的象限是（）．A ．第一象限B ．第二象限C ．第三象限D ．第四象限【选择】B 【解答】点3,5P 所在的象限是第二象限.3．（2011·广州）四个数5，0.1，12，3中为无理数的是（）．A ．5B ．0.1C ．12D ．3【选择】D 【解答】150.12、、是有理数，无限不循环的小数是无理数，3是无理数.4．（2009·广州）通过平移后可以得到的图案是（）．A ．B ．C ．D ．【选择】A【解答】观察各选项图形可知，A 选项的图案可以通过平移得到．5．下列运算正确的是（）．A ．93B ．33C ．93D ．239【选择】C 【解答】A.93，故本选项错误；B.应为33，故本选项错误；C.-9=-3，正确； D.2-3=-9，故本选项错误. 6．如图，a b ∥，160，则2=（）．A ．120B ．30C ．70D ．6021122112【选择】D 【解答】a b ，2160.7．将点(3,2)A 向右平移5个单位，得到点B ，再把点B 向上平移4个单位得到点C ，则点C 的坐标为（）．A ．(2,2)B ．(2,2)C ．(3,2)D ．(3,2)【选择】A 【解答】将点3,2A向右平移5个单位，得点B 的坐标为35,2，即2,2，再把点B 向上平移4个单位得到点C ，得点C 的坐标为2,24，即2,2.8．如图，每个小正方形的边长为1，把阴影部分剪下来，用剪下来的阴影部分拼成一个正方形，那新正方形的边长是（）．A ．3B ．2C ．5D ．6【选择】C 【解答】阴影部分由一个小正方形和一个等腰梯形组成，111（13）252阴影S ，新正方形的边长2阴影S ，新正方形的边长5.9．如图，点E 在BC 的延长线上，则下列条件中，不能判定AB CD ∥的是（）．A ．34B ．BDCEC ．12D ．180D DAB 【选择】A【解答】34，ADBC ，故A 错误；BDCE，AB CD ，故B 正确；12，AB CD ，故C 正确；180D DAB，AB CD ，故D 正确；ba21E DC B A 432110．下列命题中，是真命题的共有（）个．①相等的角都是对顶角②若a b ∥，b c ∥，则a c∥③过一点有且只有一条直线与已知下线平行④同一平面内两条不相交的直线一定平行A.1 B.2C.3D.4【选择】B【解答】①相等的角都是对顶角，错误，例如角平分线把角分成两个相等的角，但不是对顶角；②若ab ，bc ，则a c ，正确；③应为：过直线外一点有且只有一条直线与已知直线平行，故本小题是假命题；④同一平面内两条不相交的直线一定平行，是真命题，所以，真命题有②④共2个.二、认真填一填．（每题3分，共18分）11．5的相反数是________，它的绝对值是_________．【答案】-5；5【解答】5的相反数是-5；绝对值是512．16的平方根是_________，49的算术平方根是_________．【答案】4；7【解答】16的平方根是4，49的算术平方根是7.13．比较大小（用“”、“”、“=”号填空）：5______2；38______2．【答案】；=【解答】因为2(5)5，224，54＞，所以52＞，因为382，所以382.14．把命题“对顶角相等”写成“如果…”“那么…”的形式是_________．【答案】如果两个角是对顶角，那么它们相等【解答】题设为：对顶角，结论为：相等，故写成“如果…那么…”的形式是：如果两个角是对顶角，那么它们相等.15．把二元一次方程310xy 改写成用含x 的式子表示y 的形式为：y__________．【答案】31x 【解答】310xy ，解得：31y x .16．线段5AB ，AB x ∥轴，若A 点坐标为(1,3)，则B 点坐标为__________．【答案】6,3或4,3【解答】ABx 轴，A 点坐标为1,3，点B 的纵坐标为3，当点B 在点A 的左边时，5AB，点B 的横坐标为155，此时点6,3B，当点B 在点A 的右边时，5AB ，点B 的横坐标为154，此时点4,3B ，综上所述，点B 的坐标为6,3或4,3.三、解答题（本大题有23小题，共102分）17．计算题（共2小题，每题4分，本题满分共8分）（1）(32)2【答案】3【解答】原式=3+2-2=3.（2）2322【答案】3+2【解答】原式=3-2+22=3+2.18．（本题满分8分）如图，已知单位长度为1的方格中有个ABC △．（1）请画出ABC △向上平移3格再向右平移2格所得A B C △．（2）请以点A 为坐标原点建立平面直角坐标系（在图中画出），然后定出点B ，点B 的坐标：B （____，____）：B （____，____）【答案】（1）见解析；（2）1,2B ；3,5B 【解答】（1）如图可得A B C.（2）如上图，以点A 为坐标原点建立平面直角坐标系，则1,2B ；3,5B .19．解方程（共4小题，1、2小题每小题4分，3、4小题每题6分，本题满分共20分）（1）2810x 【答案】9x【解答】2810x ，281x，9x .ABC。
广东省中山市、广州市七年级英语下学期期中试题
广东省中山市、广州市2016-2017学年七年级英语下学期期中试题本试卷共8页，满分110分。
考试用时90分钟。
一、语法选择（共15小题，每小题1分，共15分）阅读下面短文，按照句子结构的语法性和上下文连贯的要求，然后从所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
Dads work hard every day. Father’s Day is the time for us to say “thank you”to our dads.The idea for Father's Day started __1__1909. A woman called Sonora Dodd thought about ____2_____a Father's Day holiday when she was listening to a Mother's Day speech at church. She wanted a special day to honour her father, William Smart. Mr Smart's wife died when she was giving birth to __3___sixth child. He raised the baby and his ____4____five children____5__ a farm.When she bacame __6___adult, Sonora Dodd understood how kind her father was. When he was raising his six children___7____, he worked very ___8____to make sure his children grow up _____9_____.Since 1966, the third Sunday in June has become a national Father's Day in__10___. In early times, people wore red roses ____11____respect for fathers who were still living and white flowers for fathers who had died. Today, people all over the world celebrate(庆祝) Father's Day ___12____many different ways. Some people buy their fathers something useful.Some people just do some simple things that they can do ___13___preparing a cup of tea or making some nice food for them. However the holiday is celebrated, the idea is for children to let their father ___14___that he is loved._____15____ give your father a surprise by saying “Thank you”on the coming Father’s Day?1.A.at B.on C.in D.for2.A.starting B.starts C.started D.start3.A.they B.them C.their D.theirs4.A.another B.others C.the other D.other5.A.in B.on C.at D.from6.A.a B.an C./ D.the7.A.by themselves B.by herself C.by himself D.by itself8.A.hardly B.hard C.harder D.hardest9.A.health B.healthy C.healthily D.more healthily10.A.North America B.North American C.north America D.north of America11.A.show B.shows C.showing D.to show12.A.in B.on C.by D.at13.A.for example B.such as C.likes D.that is14.A.know B.knew C.knows D.knowing15.A.Why don’t B.Why C.What about D.Why not二、完形填空（共10小题；每小题1.5分，满分15分）阅读下面短文，掌握其大意，然后从所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
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2016学年下学期广州市天河外国语学校期中考试卷
七年级数学
一、细心选一选：（本题有10个小题，每小题3分，满分30分．）
1
．
A
． B
C
D ．3
2．在平面直角坐标系中，点(3,5)A -所在象限为（）．
A ．第一象限
B ．第二象限
C ．第三象限
D ．第四象限
3．下列方程中，是二元一次方程的是（）．
A ．2xy =
B ．2x y =
C ．22x =
D ．2x y =
4．如图，直线AB 、CD 相交于点O ，若12100∠+∠=︒，则BOC ∠等于（）．
A ．130︒
B ．140︒
C ．50︒
D ．40︒
5．如图，直线a ，b 被c 所截，现给出下列四个条件：①15∠=∠；②17∠=∠；③2
3180∠+∠=︒；④75∠=∠．其中能够说明a b ∥的条件为（）．
A ．①②
B ．①③
C ．①④
D ．③④
6．下列各命题中，属于假命题的是（）．
A ．若0a b -=，则0a b ==
B ．若0a b ->，则a b >
C ．若0a b -<，则a b <
D ．若0a b -≠，则a b ≠
7．下列各组解中，不是二元一次方程25x y +=的解的是（）．
A ．12x y =⎧⎨=⎩
B ．21.5x y =⎧⎨=⎩
C ．61x y =⎧⎨=-⎩
D ．92x y =⎧⎨=-⎩
8．将三角形ABC 三个顶点的纵坐标分别加3，横坐标不变，连接三个新得到的点所成的三角形是原图形（）． A ．向左平移3个单位得到 B ．向右平移3个单位得到
C ．向上平移3个单位得到
D ．向下平移3个单位得到
2
1O D
C
B A c
b a 87654
321
9
2(3)0y +=，则x y -的值为（）．
A ．1
B ．1-
C ．7
D ．7-
10．已知数轴上A ，B
两点，且这两点间的距离为A
在数轴上表示的数是，则点B 表示的
数为（）．
A
． B
． C
．
或 D
-
二、耐心填一填：（本题有6个小题，每小题3分，满分18分．）
11．9的算术平方根是__________．
12．把方程34x y +=化为用x 的式子表示y 的形式为__________．
13．已知18x y =⎧⎨=-⎩是方程31mx y -=-的解，则m 的值是__________．
14．如图，已知12∠=∠，78D ∠=︒，则BCD ∠=__________．
15．如图，已知1(1,0)A 、2(1,1)A 、3(1,1)A -、4(1,1)A --、5(2,1)A -、 则点2017A 的坐标为__________．
16．如图在平面直角坐标系中，O 为坐标原点，(1,3)A ，(2,1)B ，直角坐标系中存在点C ，使得点O ，A ，
B ，
C 四点构成平行四边形，则C 点坐标为__________．
D B A
2
1
三、用心答一答：（本题有10小题，共102分，要求写出文字说明，证明过程或计算步骤．） 17．计算：（本题有2小题，每小题5分，满分10分）
（1
（2
）．
18．解二元一次方程组（本题有2小题，每小题5分，满分10分）
（1）257320x y x y -=⎧⎨-=⎩．（2）34923
x y x y +=⎧⎪⎨=⎪⎩．
19．（本题满分10分）
在边长为1的小正方形网格中，AOB △的顶点均在格点上．
（1）请写出点A ，B 的坐标．
（2）将AOB △向左平移3个单位长度得到111AO B △，请画出111AO B △．
（3）求ABO △的面积．
20．（本题满分10分）
设x ，y 是有理数，且x ，y
满足等式217x y +=+
，试求2017)y 的值．
21．（本题满分12分）
如图，AD BC ⊥于点D ，EG BC ⊥于点G ，3E ∠=∠．请问AD 平分BAC ∠吗？若平分，请说明理由．
G E
D B A 3
21
22．（本题满分12分）
甲乙两人共同解方程组51542ax y x by +=⎧⎨-=-⎩
，由于甲看错了方程中的a ，得到方程组的解为31x y =-⎧⎨=-⎩，乙看错了方程中的b ，得到方程组的解为54
x y =⎧⎨=⎩，试计算20182017110a b ⎛⎫+- ⎪⎝⎭的值．
23．（本题满分12分）
（1）如图（1），A
B C D ∥，点P 在AB 、CD 外部，若40B ∠=︒，15D ∠=︒，则BPD ∠=__________． （2）如图（2），A B C D ∥，点P 在AB 、CD 内部，则B ∠，BPD ∠，D ∠之间有何数量关系？请直接
写出你的结论__________．
（3）在图（2）中，将直线AB 绕点B 按逆时针方向旋转一定角度交直线CD 于点M ，如图（3），若90BPD ∠=︒，40BMD ∠=︒，求B D ∠+∠的度数．
24．（本题满分12分）
某电器超市销售每台进价为200元，170元的A ，B 两种型号的电风扇，如图所示是近2周的销售情况：
（2）若超市再采购这两种型号的电风扇共30台，并且全部销售完，该超市能否实现利润为1400元的
利润目标？若能，请给出相应的采购方案；若不能，请说明理由．
25．（本题满分14分）
如图，在平面直角坐标系中，点A 、B 的坐标分别为(,0)a 、(0,)b ，其中a 、b 满足34180a b a b +-+-++=，将点B 向右平移24个单位得到点C ． （1）求A ，B 两点的坐标．
（2）点P ，Q 分别为线段BC ，OA 上两个动点，点P 自点B 向点C 以1单位/秒向右移动，同时点Q 自
A 点以2单位/秒向左移动．设运动时间为t 秒（点Q 运动到点O 时止）
，若BP OQ =，求t 的值． （3）在（2）的条件下，t 为何值时，72BPQO S =四边形？
图（1）P
D C B A A
B C D P 图（2）M
P D C B
A 图（3）。