山东省临沂市经济技术开发区八年级英语下学期期中学业水平质量调研试题人教新目标版.pdf

临沂经济技术开发区2021年初二下期中学业水平质量调研试题八年级数学（时刻：90分钟 总分120分） 2021.5注意事项：1.答题前，请先将自己的姓名、考场、考号在卷首的相应位置填写清晰；2.选择题答案涂在答题卡上，非选择题用蓝色、黑色钢笔或圆珠笔直截了当写在试卷上第Ⅰ卷 （选择题 共36分）一、选择题（本大题共12小题，每小题3分，共36分）1．下列二次根式有意义的范畴为x ≥3的是A .3+xB .31-xC .31+xD .3-x2．下列运算正确的是A .235=-B .312914= C . 228=- D .428=÷ 3．下列二次根式,不能与3合并的是A .48B .18C .311 D .75- 4．Rt △ABC 中，斜边BC =2，则AB 2+AC 2+BC 2的值为A ．8B . 4C ．6D ．无法运算5．正方形具有而菱形不具有的性质是A ．对角线互相平分B ．每一条对角线平分一组对角C ．对角线相等D ．对边相等6．如图，是一段楼梯，高BC 是1.5m ，斜边AC 是2.5m ，假如在楼梯上铺地毯，那么至少需要地毯A ．2.5mB ．3mC ．3.5mD ．4m7．如图，在□ABCD中，AD =6，AB =4，DE 平分∠ADC 交BC 于点E ，则BE 的长是 A ．2 B ．3 C ．4 D ．58．如图，□ABCD 的对角线AC 与BD 交于点O ，AB ⊥AC ，若AB =4，AC =6，则BD 的长是A ．8B ．9C ．10D ．11 A ．3 B ．32 C ．52 D ．以上都不对10．等边三角形的边长为2，则该三角形的面积为A ．43B ．23C ．3D ．311．若顺次连结四边形ABCD 各边中点所得四边形是矩形，则四边形ABCD 必定是 A ．菱形 B ．对角线相互垂直的四边形C ．正方形D ．对角线相等的四边形12．如图，已知AD 是三角形纸片ABC 的高，将纸片沿直线EF 折叠，使点A 与点D 重合，给出下列判定：①EF 是△ABC 的中位线； ②△DEF 的周长等于△ABC 周长的一半； ③若四边形AEDF 是菱形，则AB =AC ； ④若∠BAC 是直角，则四边形AEDF 是矩形， 其中正确的是A ．①②③B ．①②④C ．②④D ．①③④第6题图 第7题图 第8题图第12题图二、填空题(本题1大题，8小题,每小题3分,共24分)13、（1）．运算：2(3)-=（2）．平面直角坐标系中，已知点A(－1,3)和点B(1,2)，则线段AB的长为（3）．如图，在正方形ABCD的外侧，作等边△ADE，则∠EBD=_______（4）．如图，平行四边形ABCD的顶点A、B、D的坐标分别是(0,0)、(5,0)、(2,3)，则顶点C的坐标是（5）．已知12-=x，则221x x++的值为____________（6）．如图，正方形ABCD的面积为10，则图中阴影部分的面积为（7）．菱形ABCD的两条对角线的长分别是6和8，则菱形ABCD的周长是___________ （8）．如图，矩形ABCD中，AB＝3，AD＝1，AB在数轴上，若以点A为圆心，对角线AC的长为半径作弧，交数轴的正半轴于M，则点M对应的数字是_____________三、解答题（共60分）14．（本题2小题，每小题8分，共16分）（1）运算：118424 3.2-+÷第13（3）题图第13（4）题图第13（6）题图第13（8）题图（2）如图，每个小正方形的边长为1，A 、B 、C 为小正方形的顶点，求证：∠ABC ＝45°.15．（本小题满分10分）如图，已知∠AOB ，OA =OB ,点E 在OB 上，且四边形AEBF 是平行四边形，请你只用无刻度的直尺在图中画出∠AOB 的平分线（保留画图痕迹，不写画法），并说明理由．16.（本小题满分10分）如图，已知矩形ABCD ，AD =4，CD =10，P 是AB 上一动点，M 、N 、E 分别是PD 、PC 、CD 的中点．（1）求证：四边形PMEN 是平行四边形；（2）请直截了当写出当AP 为何值时，四边形PMEN 是菱形；第14（2）题图 第15题图 第16题图第17题图18．（本小题满分13分）已知，四边形ABCD是正方形，点G是BC边上任意一点，DE⊥AG于点E，BF∥DE且交AG于点F．（1）求证：AE＝BF；（2）如图1，连接DF、CE，探究线段DF与CE的关系并证明；（3）如图2，若AB=6，G为CB中点，连接CF，直截了当写出四边形CDEF的面积为______2020—2021学年度下学期期中学业水平质量调研试题八年级数学参考答案2021.4一、选择题（本大题共12小题，每小题3分，共36分）DCBAC CACCD BA第18题图二、填空题(本题1大题，8小题,每小题3分,共24分)13、（1） 3 （2） 5 （3） 30 （4）(7，3)（5）2 （6）102（7）20 （8）110- 三、解答题（共60分）14．（本题2小题，每小题8分，共16分）（1）解：=222223+- ………………6分23=. ………………8分（2）证明：连接AC ,则由勾股定理能够得到:10,5,5===AB BC AC ………………3分∴222AB BC AC =+ ………………4分∴ABC ∆是直角三角形 ………………5分又AC=BC ,∴ABC CAB ∠=∠ ………………6分∴ 45=∠ABC ………………8分15．（本小题满分10分）解: 如图：OP 是∠AOB 的平分线………………4分理由：由四边形AEBF 是平行四边形能够明白AP=BP , ………………6分又OA=0B ,则OP 是等腰三角形OAB 底边AB 上的中线因此OP 是∠AOB 的平分线 ………………10分16.（本小题满分10分）(1)证明:∵M ,E 分别为PD ,CD 的中点,∴ME ∥PC ………………3分同理可证:ME ∥PD . ………………5分∴四边形PMEN 为平行四边形. ………………8分(2)解:当P A =5时,四边形PMEN 为菱形. ………………10分17. （本小题满分11分）（1）证明：在△ABC 中，AB =AC ，AD ⊥BC ，∴∠BAD =∠DAC ，∵AN 是△ABC 外角∠CAM 的平分线，∴∠MAE =∠CAE ，∴∠D AE =∠DAC +∠CAE =180°=90°，又∵AD ⊥BC ，CE ⊥AN ，∴∠ADC =∠CEA =90°，∴四边形ADCE 为矩形． ………………6分（2）当△ABC 满足∠BAC =90°时，四边形ADCE 是一个正方形．理由：∵AB=AC ，∴∠ACB =∠B =45°，∵AD ⊥BC ，∴∠CAD =∠ACD =45°，∴DC =AD ， ∵四边形ADCE 为矩形，∴矩形ADCE 是正方形．∴当∠BAC =90°时，四边形ADCE 是一个正方形．………………11分18．（本小题满分13分）（1）证明：∵ABCD 是正方形，∴AD=AB ，∠BAD =90° ………………2分 ∵DE ⊥AG ， ∴∠DEG =∠AED =90° ,∴∠ADE+∠DAE =90°又∵∠BAF +∠DAE =∠BAD =90°， ∴∠ADE =∠BAF ．∵BF ∥DE ， ∴∠AFB =∠DEG =∠AED ．在△ABF 与△DAE 中，⎪⎩⎪⎨⎧=∠=∠∠=∠AB AD BAF ADE AED AFB ,,∴△ABF ≌△DAE （AAS ）． ∴BF=AE ．………………5分 (2) DF=CE ; DF ⊥CE …………………7分证明：∵∠ADE +∠DAE =90°,∠ADE +∠CDE =90°∴∠DAE =∠CDE 在△ADF 与△DCE 中，⎪⎩⎪⎨⎧=∠=∠=DC AD CDE DAE DE AF ,,∴△ADF ≌△DCE （ASA ）．∴DF=CE ．∴∠DEC =∠DFE , ∵∠DEC +∠GEC =90°,∴∠GEC +∠DFE =90°∴DF ⊥CE ………………11分(3)S CDEF =3 ………………13分。

八年级下册英语复习试题一、单项选择(共20分)1．China is one of ________ countries in the world and it has a much ________ history than the US. A．the oldest, older B．oldest, oldest C．the older, older 2．Singapore is ________ Asian country and Russia is ________ European country.A．a; a B．a; an C．an; a3．I think Qingdao is the most beautiful cities that I have ever ________, you can see beautiful sea. A．gone in B．gone to C．been to4．He was walking along the street ________ the rainstorm came suddenly.A．while B．when C．until5．Mary is in trouble. Let’s try to ________ her ________.A．help; out B．hand; out C．work; out6．Mr.Green ________ the house in 2010. He ________ it for ten years.A．bought; has bought B．bought; has had C．has bought; has had 7．Don’t always depend on your parents, Jack. You should learn to look after ________.A．you B．yourself C．yours8．I ________ all the money yesterday. Now I have to borrow some.A．run out B．ran out C．ran out of9．These sick children feel really sad. Can you do something to _________?A．cheer them up B．cheer up them C．cheer they up10．________ kids learn to be independent, ________ it is for their future.A．Early; good B．The earlier; the better C．The early; the good 11．—Could I go to the movies with my friend after school?— Yes, you________. But don’t stay out too late.A．could B．couldn’t C．can12．Would you like to ________ an organization(组织) to help disabled people?A．put up B．fix up C．set up13．Many empty nesters (空巢老人) live ________. So they often feel ________.A．alone; lonely B．lonely; alone C．lonely; lonely 14．—Linda, I called you this morning, but nobody answered the phone.—I am sorry. I ________ football with my friends then.A．play B．am playing C．was playing15．—Do you have _________ about your holiday to tell us, Sam?—Yes, I have a lot of funny things to tell you.A．interesting something B．interesting anything C．anything interesting 16．—It’s very cold outside. Could you please ________ the door?—Sorry, I will close it now.A．don’t open B．not to open C．not open17．In some schools, the students have ________ rules to follow and ________ homework to do. A．too many, too much B．too much, too many C．too many, too many 18．Although she is wrong, ________ it’s not a big deal.A．but B．/C．so19．Parents like to compare their own children ________ others.A．with B．on C．in20．—Would you like to join me in making cakes tomorrow?—________.A．It doesn’t matter B．Don’t worry C．I’d love to二、完型填空(共8分)根据短文内容，从方框中选出恰当的单词或短语填空，使语意通顺完整。

山东省临沂市河东区教师命题能力比赛2010-2011学年八年级英语下学期期末模拟考试试题（二）人教新目标版二.单项选择选择最佳答案（共15小题，计15分）1. Listen ! The music sounds very .A. beautifulB. deliciousC. wellD. wonderfully2. — How is your grandpa?— He______ two years ago. He _________ for two years.A. died; has been deadB. had died; has been deadC. has died; has diedD. died; died3. He seemed there at 5:30 p.m, but I’m not sure.A. to beB. wasC. beingD. is4. He comes from________ country.A. an English-speakingB. a speaking-EnglishC. a speaking English’sD. a English-speaking5.Yesterday I was watching TV someone telephoned me.A. whenB. whileC. asD. that6.His sister’s never been to the summer palace, ?A. is sheB. has sheC. hasn’t sheD. isn’t she7. —Do you mind my smoking here?—, Look at the sign, It says, “No Smoking.”A. It doesn’t matter.B. No, I don’t.C. You’d better not.D. Never mind.8.They say there______ a report on wildlife this afternoon.A. will haveB. will giveC. is going to beD. will has9. They had a hard time ______ the taxi.A. catchB. to catchC. catchingD. in catch10. I don’t know if there is __________ in today’s newspaper.A. something importantB. anything importantC. important somethingD. anything important11. —She has already finished her work．—When________ she________ it ?A．has；finished B．had；finished C．did；finish D．was；finishing12．My parents and I went to the book show because________ of us like reading．A．one B．both C．every D．all13.It is necessary _____ us _____ learn English well.A.of; toB.with; forC.for; toD.of; for14. —Can you come to my party？— .A.No, I’d love toB.Sure , I’d love toC.No, I can’tD.I’d love15. There is snow here in winter.A.too muchB.too manyC.much tooD.many三.完形填空（共15小题，计15分）Jack was a rich young man. One day, he was 16 very happily down a street. Suddenly from his car came a terrible sound. He felt 17 , so he stopped his car and looked around. He saw a child standing nearby with a few small stones in his hand. He jumped 18 the car and found a dent (凹痕) in the door. He was so 19 that he caught the boy and shouted at him, "Who are you? 20 did you throw a stone at my new car?""Please, sir, please...I'm sorry! But I didn't know what else to do!" said the child. "I threw the stone 21 I wanted to get you to notice me. I need your 22 !"Tears were running down the child's face. He said, "My brother 23 out o f his wheelchair (轮椅) and was almost under it. He is hurt and too 24 for me. Could you give me 25 to get him back into his 26 ?"After hearing this, Jack was moved (感动) and 27 to help him. He lifted the child's brother 28 back into his wheelchair. He looked over the boy carefully to make sure that he was OK. Then he watched the child 29 his brother towards their home. Suddenly the child 30 and bowed (鞠躬) to him. Jack looked at the dent in his car and smiled. 16. A. walking B. riding C. jogging D. driving17. A. excited B. interested C. surprised D. tired18. A. into B. across C. over D. out of19. A. happy B. sad C. angry D. so rry20. A. Why B. How C. When D. Where21. A. if B. because C. though D. while22. A. money B. car C. help D. phone23. A. fell B. got C. climbed D. pulled24. A. difficult B. weak C. heavy D. thin25. A. a hand B. a touch C. a pull D. a ring26. A. car B. wheelchair C. house D. place27. A. hurried B. preferred C. wanted D. planned28. A. quietly B. gently C. calmly D. tightly29. A. carry B. send C. take D. push30. A. cried out B. looked around C. got up D. turned around四.阅读理解，阅读短文，完成第31至40小题（共10小题，计10分）AIn order to find out what people like to do on weekend evening， a reporter from 21st Century made a survey among altogether three hundred people．The interviewees were dividedinto three age groups，8 to 18，19 to 28 and 29 to 35，and each age group has the number of people．Some of the data is in the following chart．31．People of 19-28 mostly enjoy_________A．taking a walk B．playing computer gamesC．watching TV D．going to the movies32．How many people enjoy playing computer games in the 19-28 group?A．Fifty-five． B．Forty-three． C．Eighty-three． D．Eighteen．33．Which activities do most people enjoy doing?A．Watching TV and playing computer gamesB．Playing computer games and taking a walkC．Going to the movies and watching TVD．Taking a walk and watching TV．34．In which age group do people seem to have the most choices of activities? A．8-18 B．19-28． C．29-35 D．N ot known35．Which of the following statement is TRUE?A．People aged 29-35 like playing computer games bestB．People aged 8-18 like going to the movies bestC．People aged 19-28 enjoy playing computer games more than watching TVD．People aged 29-35enjoy going to the movies mo re than watching TV．BThe Internet is becoming import ant in our life. How much do you know about it? What is the Internet?The Internet is a large, worldwide collection(聚集) of computer networks(网). A network is a small group of computers put together. The Internet is many different networks from all over the world. These networks are called the Internet. Once you have learned to use the Internet, you can do a lot of interesting things on the World Wide Web.What is the World Wide Web?The World Wide Web has been the most popular development of the Internet. The Web is like a big electronic(电子的) book with millions of pages. These pages are called homepages(主页).You can find information(信息) about almost anything in the w orld on these pages. For example, you can use the Internet instead of a library to find information for your homework. You can also find information about your favorite sport or film star, talk to your friends or even do some shopping on the pages. Most pages have words, pictures and even sound or music.What is e-mail?Electronic mail is a way of sending messages to other peopl e. It’s much quicker and cheaper than sending a letter. If you want to use e-mail, you must have an e-mail address. This address must have letters and dots(点) and an ‘@’(meaning ‘a t’). This is what an address looks like: Emily@. Write a message, type(打字) in the person’s e-mail address, then send the message across the Internet. People don’t need to use stamps, envelopes or go to the post office since the invention of the Internet. Quick, easy and interesting--- that’s the Internet!36.The Internet is _______.A. a big computerB. a small group of computersC. lots of computer networksD. the World Wide Web37. The World Wide Web is like_________.A. an electronic bookB. homepagesC. an electronic pageD. an interesting picture38. What does “talk to your friends on the pages” mean? It means __.A.you can talk to your friends face to faceB.you can type your words in the computer and then send them to your friends across the InternetC.you talk to your friends through the same computerD.you go to your friends’ houses to talk to them39.People like to use e-mail to send messages to their friends and family because______.A.they don’t have to pay any moneyB.it’s faster and cheaperC. they don’t need to have stamps, en velops or addressesD. sending e-mail is interesting40. The “e” in e-mail means ______.A. easyB. electricalC. electronicD. enjoyableCLaura:Mum.Sunday is coming.The weather report says it is a beautiful day. Mother:O h,that’s good. 41Laura:I don’t have any plans now.My teacher says children should help their parents,and I want to do my part.Mother: 42 Don’t you go to the park with Mary?Laura: 43 They like the countryside there. She is going to the airport to see them off.Mother: Nature is beautiful. There are many tourists in Europe.Laura: It’s ture. What are you doing on Sunday,mom?Mother: 44Laura: I am helping you with the ho usework. 45Mother: Thank you. And you are right. Homework must come first.A. Would you like to do the housework?B. I want to cook a dinner for the famliy.C. What are you doing for the weekend?D. But I am doing my homework first.E. That’s very nice of you.F. No,I don’t. She is leaving for Europe.G. Oh,Mary’s parents are leaving for Europe for vacation.DThe Lost RingOne day a man went home to his wife and said, "I have bought something for you." "Oh, thank you" said his wife. "What have you bought?" "I've bought a gold ring. Here it is." He held it out for his wife to see. Then he dropped it. "Oh dear" he said. "I have dropped it." He began to look for it on the floor but it was dark inside the house and he could not see anything. He went outside the house and began to look for the ring in the street. Just then a friend came along. "What's the matter?" he asked. "I have lost a ring." said the man. "Where did you lose it?" "I lost it inside my house." "You lost your ring inside your house but you are looking for it outside in the street. That seems very foolish." "Ah," said the man, "but it is dark inside my house. I shall never find it there. But here in the street there is more light and I can see more clearly.Notes: ring 戒指 gold 金,黄金46. What did the man buy for his wife?___________________________________________________47.Where did he drop the ring?___________________________________________________48. Where did he look for the ring ?___________________________________________________49.Could he find out the ring?___________________________________________________50.What do you think of the man ?___________________________________________________五.词汇考查（共5小题，计5分）用括号内所给单词的适当形式填空。

山东省临沂市青云镇中心中学2022-2022学年八年级英语下学期期末质量监测试题人教新目标版第Ⅰ卷（选择题共55分）一、听力测试（共20小题，计20分）注意：听力测试分四部分，共25小题。

做题时，先将答案画在试卷上，录音内容结束后，将所选答案转涂到答题卡上。

（一）听句子，选择与句子内容相对应的图片。

每个句子读两遍。

请看第一组的三幅图片，听两个句子，完成第1至第2小题。

（二）听对话和问题，根据所听内容，选择最佳答案。

对话和问题都读两遍。

7 A A an B A doctor C An atronaut8 A Her cothe are out of te B She argued with her friendC She wa mad at her mother9.A She wa cutting her hair B She wa waing aong the treetC She wa tanding in front of the ibrar10.A He coud do better B He wa a C He did OK11 A For nine hour B For four hour C For five hour12 A A B Some fower C A watch13 A At a e C At choo14 A Aice B Aice’ mother C Aice’ father（三）听短文，根据短文内容，判断下列句子正误，正确的用“A”表示，不正确的用“B”表示。

短文读两遍。

听短文前，你们有20秒钟的时间阅读下列句子。

15 Bob ha been running in marathon for about three ear16 When Bob wa oung, he eercied much17 Bob ove running outide18 Bob uua tae hi dog with him when he run19 Now Bob run ever morning before wor20 Bob ie tofu ver much and he eat ot of meat请考生们翻到第II 卷，先找到第五大题的A 部分。