【模拟试题】(答题时间：60分钟)
2024中考生物三模试卷(天津卷)
2024年中考第三次模拟考试（天津卷）生物（考试时间：60分钟试卷满分：100分）注意事项：1．答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。
2．回答第Ⅰ卷时，选出每小题答案后，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，再选涂其他答案标号。
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3．回答第Ⅰ卷时，将答案写在答题卡上。
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4．考试结束后，将本试卷和答题卡一并交回。
第Ⅰ卷（选择题共46分）一、本题共23小题，每小题2分，共46分。
在每小题的四个选项中，选出最符合题目要求的一项。
1．下列不属于生命现象的是（）A．含羞草叶片受到触碰合拢B．岩洞里的钟乳石慢慢长大C．腐烂的树桩上长出蘑菇D．啄木鸟在树干上找虫吃2．“人间四月芳菲尽，山寺桃花始盛开”，造成这一差异的环境因素是（）A．光B．水C．温度D．湿度3．下表为某同学探究“湿度对鼠妇生活的影响”实验的初步设想，其中存在不合理之处，下列改进建议正确的是（）A．纸盒左右两侧各放1只鼠妇即可B．纸盒左右两侧均应放置湿润的土壤C．纸盒左右两侧均应设置明亮的条件D．纸盒左右两侧均应设置阴暗的条件4．要把显微镜视野右上方的物像移到视野的中央，玻片移动的方向应该是（）A．左下方B．左上方C．右下方D．右上方5．如图是小羊多莉培育过程示意图，此项研究证明了遗传物质存在于（）A．细胞膜B．细胞核C．细胞质D．液泡6．胎儿在母体内发育时，通过（）从母体获得所需要的营养物质和氧气A．消化系统B．子宫内膜C．脐带D．胎盘和脐带7．小明吃西瓜时不小心将一粒西瓜子咽下去了，它通过小明的消化系统最终被排到了体外，它先后经历了（）A．口腔－咽－食道－胃－大肠－小肠－肛门B．口腔－咽－食道－胃－小肠－盲肠－肛门C．口腔－食道－胃－肝脏－小肠－大肠－肛门D．口腔－咽－食道－胃－小肠－大肠－肛门8．下列关于青春期身体变化和心理特点的叙述，不正确的是（）A．身高突增是青春期的显著特点B．进入青春期后，性器官迅速发育C．青春期有强烈的独立意识，遇到挫折不渴望得到关怀D．青春期的男孩和女孩常常会有较多的心理矛盾9．人在低血糖时，马上喝一点葡萄糖液就能很快缓解，这是因为人体生命活动所需要的能量主要是由（）提供的A．脂肪B．糖类C．蛋白质D．维生素10．红细胞数量过少或者血红蛋白含量低时，人容易出现（）A．白血病B．夜盲症C．地方性甲状腺肿D．贫血11．患佝偻病的儿童主要是由于食物中缺乏（）A．含铁的食物B．含碘的食物C．含维生素D的食物D．含锌的食物12．输液时，护士常用橡皮筋扎住病人上臂促进某些血管更加清晰，这些血管是（）A．大动脉B．毛细血管C．静脉D．小动脉13．安全输血应以输同型血为原则，某A型血病人需大量输血，应输入（）A．A型血B．B型血C．O型血D．AB型血14．为促进年幼的侏儒症患者的生长发育，可以为他注射下列激素中的（）A．性激素B．胰岛素C．生长激素D．甲状腺激素15．下列哪一项属于复杂的人类所特有的反射活动（）A．谈梅生津B．缩手反射C．膝跳反射D．眨眼反射16．反射是通过反射弧完成的，完成反射活动的正确途径是（）A．效应器→传入神经纤维→神经中枢→传出神经纤维→感受器B．效应器→传出神经纤维→神经中枢→传入神经纤维→感受器C．感受器→传入神经纤维→神经中枢→传出神经纤维→效应器D．感受器→传出神经纤维→神经中枢→传入神经纤维→感受器17．温室效应是指由于全球（）等气体的排放量不断增加，导致地球平均气温不断上升的现象A．二氧化硫B．一氧化碳C．二氧化碳D．氮气18．我国有优良的淡水鱼品种，其中著名的“四大家鱼”是指（）A．草鱼、鲤鱼、鲫鱼、青鱼B．青鱼、草鱼、鲢鱼、鳙鱼C．鳙鱼、鲫鱼、带鱼、草鱼D．鲤鱼、青鱼、带鱼、鲢鱼19．天津独流老醋是中国传统名醋之一，在酿醋过程中能产生醋酸的菌种是（）A．酵母菌B．醋酸菌C．乳酸菌D．甲烷菌20．以鹅颈瓶实验证明细菌不是自然发生的“微生物学之父”是（）A．奥地利科学家孟德尔B．英国科学家达尔文C．法国科学家巴斯德D．瑞典科学家林奈21．下列各组中，属于相对性状的是（）A．姐姐的长发与弟弟的短发B．小王天生的卷发与小刘天生的直发C．小张的体重与他的身高D．小高的大眼睛与小吕的高鼻梁22．下列生物分类等级中，最基本的分类单位是（）A．门B．科C．属D．种23．水稻是重要的粮食作物之一，全球半数以上人口以大米为主食。
一轮复习 七年级下Units 1-6
【模拟试题】（答题时间：60分钟）I. 单项选择1. —Where’s your pen pal from?—He is from , the United Kingdom.A. TokyoB. BeijingC. LondonD. New York2. James is good at sports. He plays basketball well, and he plays __ __piano well, too.A. the, theB. /, /C. /, theD. the, /3. —_______ you from Australia ?—No, I’m from Singapore.A. CanB. AreC. DoD. Where’s4. Please write _______ me and tell me _______ yourself.A. to, toB. to, aboutC. about, toD. about, about5. —Why does he like koalas?—he thinks they are very cute.A. BecauseB. SoC. ButD. And6. Next to the park, _______ a big hotel.A. haveB. hasC. there isD. there are7. Let Li Ming ___ ___ you ___ ___ the books to the classroom.A. to help, takeB. help, takeC. helps, takeD. helping, to take8. My favorite food is hamburgers ___ __some meat in them.A. ofB. atC. withD. for9. —Henry, is this your sock?—Yes. But where’s _______ one?A. otherB. the otherC. othersD. another10. “你父亲是做什么的？”Which sentence(句子) is wrong（错的）？A. What’s your father’s job?B. What is your father doing?C. What does your father do?D. What’s your father?11. —Can he _______French?—Yes, he can.A. speaksB. sayC. speakD. talk12. The moonlight(月光)comes in ________the window at night.A. acrossB. throughC. toD. in front of13. —Aren’t the koalas cute?—Yes, .A. all kinds ofB. kind ofC. a kind ofD. kinds of14. —What do you do?—_______.A. I’m very wellB. I’m a basketball playerC. I’m in the libraryD. I’m doing my homework15. Mike often ____ __books. He enjoys books.A. reads, readsB. read, readingC. reads, readingD. read, to read16. Excuse me, can you tell me _______?A. how can I get to the children’s palaceB. how to arrive the children’s palaceC. how can get to the children’s palaceD. how to get to the children’s palace17. What _do you want to see in the zoo?A. other animalB. the other animalC. another animalsD. other animals18. Here _ some news about the job for you.A. areB. isC. be C. am19. I work _ __ him __ _ a waiter.A. as, toB. for, toC. for, asD. as, in20. The busy street is _______ to small children.A. difficultB. dangerousC. interestingD. funII. 完形填空It’s a fine Sunday morning. Ann and her mother are on a big bus. There are 21 people on it. Some 22 from America, and some 23 England and Canada. They are all 24 friends. They’re going to the Great Wall(长城). 25 two Chinese on the bus. 26 is a woman. She is 27 the bus. The other is a young man. He 28 good English. He is now talking 29 the Great Wall. The other people are all listening to him. They like the Great Wall. They want to see it 30 .21. A. much B. any C. a little D. many22. A. is B. are C. has D. have23. A. with B. of C. from D. about24. A. her B. his C. our D. their25. A. They B. Their C. There D. There’re26. A. That B. This C. The one D. One27. A. riding B. taking C. driving D. carrying28. A. speaks B. says C. talks D. listens29. A. with B. on C. about D. at30. A. a lot B. lot of C. very D. muchIII. 阅读理解根据Sophia的来信，选择正确答案。
中考第二轮复习：语法专项
【模拟试题】（答题时间：60分钟）形容词、副词I. 用括号内所给词的适当形式填空。
1. Of all the girls in the class, Mary draws (well) .2. The sun is (big) than the earth. the earth is (big) than the moon. The moon is (small) of the three.3. This book is quite (interest). I am (interest) in it.4. I am too tired to walk any (far).5. English is (wide) used for business between different countries.6. She looks much (young) than she is.7. This picture is (beautiful) than that one, and it is (expensive).8. The weather of this week is getting (warm).9. Mr Smith is (busy) than anyone else in his school.10. I spend a lot (much) time on English than before.11. We have a much (good) life now.12. Rose sings (well). She sings (well) than Mary.But Kate sings (well)in her class.II. 单项选择。
1. Do you think our basketball team will beat theirs?Of course. We have players.A. betterB. lessC. moreD. well2. How are you today, Bob?I’m even now. I don’t think the medicine is good for me.A. betterB. worseC. happierD. badly3. In the Science Museum, the children felt to see so many things.A. surprised; amazedB. surprising; amazingC. surprising; amazedD. surprised; amazing4. Now the air in our hometown is even than it was before.So we must do something to stop it.A. dirtyB. betterC. worseD. more better5. Zhou Fang, can you finish your homework better with time?I think I can.A. fewB. fewerC. littleD. less6. It is quite hot these days. And today is day.A. hotB. hotterC. as hot asD. the hottest7. He is to go to school this year.A. enough oldB. old enoughC. very oldD. older than8. Larry is not Jimmy. He is not the tallest boy in our class.A. so tall asB. as taller asC. taller asD. tall than9. I haven’t to tell you.A. anything importantB. something importantC. important somethingD. important anything10. Book III is than Book II.A. difficultB. much difficultC. most difficultD. much more difficult11. I had much homework last night, so I went to bed .A. earlyB. lateC. soonD. slow12. Dalian is becoming and .A. beautiful; beautifulB. more; more beautifulC. more beautiful; more beautifulD. more beautiful; more13. When a piece of ice is taken into a warm room, it becomes .A. big and bigB. bigger and biggerC. small and smallD. smaller and smaller14. It was one of basketball games of the year.A. most excitingB. the more excitingC. the most excitingD. the much more exciting15. How much money did you pay for the drink?None. It was .A. easyB. freeC. cheapD. expensive16. Did Han Meimei pick a lot of apples?Yes. She picked than any of us.A. so manyB. many moreC. much moreD. the most17. You have got the same shirt as I.Yes. Mine is , but not so as yours.A. better; expensiveB. better; more expensiveC. more better; expensiveD. good; more expensive18. What is the main cause of the accident?Driving .A. carefullyB. carefulC. carelessD. carelessly19. This math problem is that one. I can’t work it out.A. not so easy asB. easier thanC. less difficult thanD. as easy as20. The population of the world in 20th century became very much than that in 19th.A. biggerB. largerC. greaterD. more21. Peter drives Amy, so it will take Peter time to get to the hotel.A. much faster than; lessB. more slowly than; lessC. as fast as; moreD. as slowly as; more22. Lenlen learns to dance three times a week. Now she dances Anita does.A. so good asB. as well asC. as good asD. so well as23. You can ask the old man to move away because he has lived here for10 years.A. hard; lonelyB. hard; aloneC. hardly; lonelyD. hardly; alone24. The magazines are easy that the children can read them well.A. suchB. soC. tooD. very25. Remember not to speak when we are in the reading room.A. fastB. slowlyC. politelyD. loudly介词I. 用适当的介词填空。
【模拟试题】（答题时间60分钟）1.填空。（1）1.2立方分米=（）立方厘米
【模拟试题】（答题时间60分钟）1.填空。
（1）1.2⽴⽅分⽶=（）⽴⽅厘⽶【模拟试题】（答题时间：60分钟）1.填空。
（1）1.2⽴⽅分⽶＝（）⽴⽅厘⽶2.25升＝（）⽴⽅分⽶（）⽴⽅厘⽶250⽴⽅分⽶＝（）⽴⽅⽶（2）长⽅体的长是6厘⽶，宽是4厘⽶，⾼是2厘⽶，它的棱长和是（）厘⽶，体积是（）⽴⽅厘⽶，表⾯积是（）平⽅厘⽶。
（3）⼀个正⽅体的棱长是5厘⽶，它的表⾯积是（）平⽅厘⽶，体积是（）⽴⽅厘⽶。
（4）在18、3和7中，（）是（）的约数，（）是（）的倍数，能组成互质数的有（）和（）、（）和（）。
（5）最⼩的质数与最⼩的合数的乘积是（）。
（6）95分解质因数是（）。
（7）既能整除12，⼜能整除18的最⼤数是（）。
（8）⼀块长8分⽶，宽4分⽶，⾼6分⽶的长⽅体⽯块最多占地⾯积是（）平⽅分⽶。
2.选择。
（把正确答案的序号填在括号⾥）（1）⽂具盒的体积⼤约是120（）。
①⽴⽅⽶②⽴⽅分⽶③⽴⽅厘⽶（2）根据9÷4＝2.25，可以说（）。
①9能被4整除②9能被4除尽③9不能被4除尽（3）容积为20升的汽油箱，它的体积（）20⽴⽅分⽶。
①⼤于②等于③⼩于（4）⼀个数的最⼩倍数（）它的最⼤约数。
①⼩于②⼤于③等于（5）正⽅体的棱长扩⼤2倍，它的体积扩⼤（）倍。
①2 ②4 ③83.判断。
（对的在括号⾥打“√”，错的打“×”）（1）长⽅体的长、宽、⾼各有4条。
（）（2）1是任何⾃然数的约数（0除外）。
（）（3）1平⽅⽶⽐1⽴⽅⽶⼩。
（）（4）两个⾮0的偶数⼀定不是互质数。
（）（5）除2以外，其余的质数都是奇数。
（）4.求下⾯每组数的最⼤公约数和最⼩公倍数（三个数只求最⼩公倍数）。
18和24 9和2724、30和15 4、6和185.下⾯是五（2）班两个⼩组同学的数学考试分数：98、100、93、65、76、83、99、90、71、95、84、79、82、52、78（2）最⾼分是（）分，最低分是（）分；⼈数最多的是（）分，80分以上共（）⼈。
杠杆的平衡条件
【模拟试题】（答题时间：60分钟）一、选择题：1、如图所示的简单机械，在使用中属于费力杠杆的是（）2、如图所示杠杆，O是支点，杠杆质量不计，在A、B两端分别挂上质量不等的甲、乙两物体（甲的质量大于乙），此时杠杆平衡，下列情况中能使杠杆重新平衡的是（）A. 将甲乙两物体向支点移动相同的距离B. 将甲乙两物体远离支点移动相同的距离C. 在甲乙两端分别挂上质量相等的物体D. 在甲乙两端分别挂上与甲乙等质量的物体3. 如图所示，人的前臂可视为杠杆，当曲肘将茶杯向上举起时，下列说法中正确的是（）A. 前臂是省力杠杆B. 前臂是费力杠杆C. 前臂不是杠杆D. 无法确定4、如图所示是一个指甲刀的示意图；它由三个杠杆ABC、OBD和OED组成，用指甲刀剪指甲时，下面说法正确的是（）A. 三个杠杆都是省力杠杆；B. 三个杠杆都是费力杠杆；C. ABC是省力杠杆，OBD、OED是费力杠杆；D. ABC是费力杠杆，OBD、OED是省力杠杆。
5、如图是开汽水瓶盖工具的受力示意图，其中正确的是图（）6、在下图中，O 为支点，力臂最长的力是 （ ）A. 1FB. 2FC. F 3D. F 47、如图所示，用力F 将球形重物滚上台阶时，可以把它看成一个杠杆，那么 （ ）A. 它的两个力臂相等B. 这杠杆的支点是球心O 点C. 这杠杆的支点是球与地面的接触点D. 这杠杆的支点是球与台阶的接触点二、填空题1. 从支点到阻力作用线的垂直距离叫______________.2. 把重为2牛和12牛的物体分别挂在杠杆的两端，杠杆平衡时，两力臂长度之比为___________. 若在2牛的物体上再加上2牛的重物，要使杠杆平衡，则应在12牛的重物上条件是三、作图题画出如图所示实物中的杠杆受力示意，其中要求拔钉子的力最小，路灯吊杆的自重不计，且标出杠杆的支点、动力臂、阻力臂.【试题答案】一、选择题1、A2、D3、B4、C5、A6、C7、D二、填空题1、阻力臂2、6：1 123、静止匀速直线运动动力乘以动力臂等于阻力乘以阻力臂F1L1=F2L24、1kg 58.8三、作图题略。
五年级英语人教版PEP下学期期末试卷
年级五年级学科英语版本人教PEP版内容标题五年级英语人教PEP版下学期期末试卷编稿老师魏秀然【本讲教育信息】一、教学内容期末试卷【模拟试题】（答题时间：60分钟）一、按要求完成任务1. 做运动（汉译英）___________2. 看望祖父母__________________3. two(序数词)___________4. butterfly(复数)________________5. like best(同义词)___________6. run(现在分词)______________7. dance(名词形式)___________ 8. 寒冷而多风(汉译英)____________ 9. 在冬天________________ 10. Dec.(完全形式)______________二、读句子补充单词1. We can write an e-_______.2. There are four s___________ in China, too.3. Tom is in the tree. He is p__________ up leaves.4. Children like making a s_____________ in winter.5. We eat b________ at 7:20 in the morning.6. The f________ day of the week is Sunday in the west.7. The twelfth month of the year is D___________.8. Sometimes I visit my g____________.9. W____ do you like spring?10. Chen Jie _s doing e___________.三、单项选择( ) 1. —Why do you like summer?—______ I can swim.A. BecauseB. becauseC. He( ) 2. —Can I speak ______ Amy, please?—Hold on please.A. forB. toC. at( ) 3. What season _______ in March in Beijing?A. it isB. is itC. is( ) 4. _____ she collecting insects?A. IsB. DoesC. Are( ) 5. _____ do you get up?A. WhatB. WhenC. Where( ) 6. ______ do you do _____ the weekend?A. What inB. What onC. Where on( ) 7. —Are your classmates having a picnic?—____________.A. No, they are.B. Yes, they are.C. They are.( ) 8. ________ is in June.A. Fool’s DayB. Mother’s DayC. Children’s Day ( ) 9. Spring is green ______ flowers and songs.A. withB. ofC. in( ) 10. Amy and her mother _____ going hiking now.A. isB. areC. do四、看图写答语1. Which season do you like best?______________________________.2. When is your birthday?______________________________3. What are they doing?________________________________4. What do you do on the weekend?___________________________________5. Are they having a picnic?____________________________________6. Is the kangaroo jumping?____________________________________五、按要求写句子1. I like spring because I can fly a kite.(对划线部分提问)______________________________________________2. Which season do you like best?(同义句)______________________________________________3. Her birthday is June 6th.(对划线部分提问)______________________________________________4. I, do, usually, my, on, homework, weekend, the (.) (连词成句)______________________________________________六、阅读理解Today is Saturday. It’s sunny. Some children are in the nature park. They are going on a trip. Now, they are cooking dinner. After a picnic, Sarah and Jenny are washing the dishes. John is drawing a picture for ants. Three children are picking up leaves. Chen Feng and Li Mei are catching butterflies. Six children are climbing mountains.They are very happy!根据内容回答问题1. What day is it today?2. What are the children doing?3. Who is drawing a picture?4. Are Sarah and Jenny watching insects?5. Is Li Mei catching dragonflies?6. How many children are climbing mountains?不懂英语寸步难行。
2024中考生物二模试卷生物(天津卷)
2024年中考第二次模拟考试（天津卷）生物（考试时间：60分钟试卷满分：100分）注意事项：1．答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。
2．回答第Ⅰ卷时，选出每小题答案后，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，再选涂其他答案标号。
写在本试卷上无效。
3．回答第Ⅰ卷时，将答案写在答题卡上。
写在本试卷上无效。
4．考试结束后，将本试卷和答题卡一并交回。
第Ⅰ卷（选择题共46分）一、本题共23小题，每小题2分，共46分。
在每小题的四个选项中，选出最符合题目要求的一项。
1．下列不具有细胞结构的生物是（）A. 含羞草B. 啄木鸟C.香菇D. 流感病毒2．风吹麦浪，稻花飘香，夏蝉低吟，鸟儿浅唱……万千生物演绎着生命奇迹，诠释了强大而神秘的生命力量。
下列选项中属于生物生命现象的是（）A. 春日和煦B. 夏荷绽放C. 秋风送爽D. 冬雪飞舞3．很多果树利用如图所示的方式繁育优良品种，这种方式称为（）A. 嫁接B. 扦插C. 杂交D. 组织培养4．中老年人缺少哪种无机盐易患骨质疏松（）A. 含铁的无机盐B. 含钙的无机盐C. 含锌的无机盐D. 含碘的无机盐5．观察如图，当你伸肘时，肱二头肌、肱三头肌各处于何种状态（）A. 肱二头肌收缩，肱三头肌收缩B. 肱二头肌收缩，肱三头肌舒张C. 肱二头肌舒张，肱三头肌收缩D. 肱二头肌舒张，肱三头肌舒张6．血常规检查时，哪项指标高于正常值可以作为人体有炎症的依据（）A. 红细胞B. 白细胞C. 血小板D. 血红蛋白7．输血时应以输同型血为原则，某O型血病人需大量输血，应输入（）A. A型血B. B型血C. AB型血D. O型血8．如图为人体肺的内部结构示意图，肺泡外包绕着丰富的毛细血管，肺泡壁和毛细血管壁均由一层上皮细胞构成，这有利于（）A.肺泡与血液的气体交换B. 肺与外界的气体交换C. 呼吸道对空气的处理D. 血液与肺外组织细胞的气体交换9．耳机的出现，给我们带来方便的同时，也带来了一些耳机“后遗症”。
2023-2024学年度第一学期八年级期中道法模拟试题
2023-2024学年度第一学期八年级道德与法治学科期中模拟训练卷亲爱的同学：在你答题前，请认真阅读下面以及“答题卡”上的注意事项。
l.本试卷共6 页，分第一部分和第二部分，满分60 分。
考试用时60 分钟。
2.答题前，请将你的姓名、准考证号填写在“答题卡”上。
3.选出每小题答案后，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，再选涂其他答案，答．在．“．试．卷．”．上．无．效．。
预祝你取得优异成绩！第一部分选择题本部分共 14 题，每题 2 分，共 28 分。
下面各题的备选答案 A、B、C、D 项中，只有一项最符合题目要求，请选出并把“答题卡”上对应题目的答案标号涂黑。
1.从食物品种单一到四季果蔬、肉类丰富的餐食；从黑灰打补丁的棉布衣服到款式新颖材质多样的服装；从一辆破旧自行车到出入方便的私家车；从单一的书信来往到直接面对面视频通话；从落后封闭的山野村庄到现代化的旅游小镇……改革开放四十多年的巨大变化表明A.一幅生动的画卷在我们面前展开，我们的社会生活越来越多彩B.每个人都是社会的一员，在社会生活中不断成长C.人的成长离不开社会，投身社会的过程是我们不断走向成熟的过程D.初中生当前可以远离社会生活2.在武汉新冠肺炎疫情爆发期间，时任武汉金银潭医院院长的张定宇鼓励带动全院上下与时间赛跑，争分夺秒挽救生命。
而身患渐冻症的他又于2022 年9 月决定捐献自己的遗体用于渐冻症研究。
张定宇的行为启示我们A.人的生存和发展都离不开社会B.与时间赛跑，争分夺秒挽救生命的敬业精神让人敬佩C.奉献集体、服务社会，我们应该将个人价值实现融入社会和国家的发展之中D.我们融入社会、投身社会就能获得他人和社会的的接纳与认可3.2022 年10 月16 日，中国共产党第二十次全国代表大会在北京人民大会堂隆重开幕。
全国人民的目光，飞跃江河、越过崇山峻岭，不约而同时投向了那座以“人民”为名的会场。
形容词和副词练习题
【模拟试题】（答题时间：60分钟）1. The modern machine proved ______ in heart surgery.A. high valuable B. highly valuable C. valuable high D. valuable highly2. Mr. Johnson and his ______ daughter do not always understand each other.A. olderB. the oldestC. eldestD. the eldest3. They ______ thought that the truth would be finally discovered.A. littleB. notC. smallD. bit4. They hardly believe that the apartment which costs them $ 4,000 is ______.A. so small B. such littl C. so little D. such small5. If a claim is kept ______, it is more likely to be recognized.A. liveB. livedC. aliveD. living6. On his way to school he met ______, so he sent him to hospital.A. very ill manB. much sick manC. serious ill manD. very sick man7. She was operated a month ago but now she was ______.A. very goodB. very wellC. healthyD. good conditioned8. What I would do is to go ______.A. really quietly somewhereB. somewhere quietly reallyC. really quiet somewhereD. somewhere really quiet9. The chairman asked ______ to write their questions on a piece of paper and send them to the front. A. the present men B. the members presently C. the members present D. the presently members10. The price was very reasonable; I would gladly have paid ______ he asked.A. three times much as B. three times as many asC. as three times much asD. three times as much as11. The trousers are ______, but Tom does not care a bit.A. too a little smallB. a little too smallC. a too little smallD. a small too little12. She wore a dress to the party that was far more attractive than ______.A. other girls B. that of other girlsC. the other girls D. those of other girls 13. he can play tennis better than ______ in the class.A. any boys B. any other boy C. any boy D. any other14. Kasia is taking her ______ tour of the shops in search of bargains.A. daily B. day C. day time D. night15. ______ the child expresses his interest in an activity, the stronger it will become.A. The more frequen B. The frequenterC. The more frequentlyD. The frequentlier16. We’d better wait _______ , Peter and Tom will come very soon.A. a little longerB. more longerC. longD. as longer17. Although the medicine tastes ____,it seems to help my condition.A. bad B. badlyC. too much badD. too badly18. When she got her first month salary, Diana bought herself ______ dress.A. a cotton , blue …expensive B. an expensive … blue, cottonC. a blue, expensive … cottonD. a cotton, expensive… blue19. The doctors have tried ______ to save the life of the wounded soldier.A. everything possible humanly B. humanly everything possibleC. everything humanly possibleD. humanly possible everything20. I was worried very much because I’ll miss my flight if the bus arrives ______. A. lately B. late C. latter D. more later21. The noise outside was ______ his speech was hardly audible.A. too irritating thatB. so irritating so C. so irritating that D. so irritating enough that22. The harder the shrub is to grow, ______. A. the more higher price it B. the higher price it isC. the higher the price isD. the higher is the price23. The photographs of Mars taken by satellite are ___taken from the earth.A. clearest than thoseB. clearer than thatC. much clear than thoseD. much clearer than those24. _ anywhere in the United States costs less than a dollar when you dial it yourself.A. Three-minute call B. A three-minutes callC. A three-minute callD. A three-minutes-call25. We arrived ______ Professor Baker had already called the roll.A. so lately thatB. as late thatC. so later thatD. so late that26. It is ______ that I would like to go to the beach.A. so nice weather B. such nice weatherC.so nice a weather D. such a nice weather27. Her little car isn’t ______ to seat more than two people comfortably.A. big enough B. enough big C. so big enough D. big as enough28. His score on the exam was ______ to qualify him for a graduate program.A. too good B. well enough C. as high as D. good enough29. The plane is scheduled to arrive ______ because of bad weather.A. latelyB. lateC. laterD. latest30. There are ______ that I can’t finish them.A. so long assignments B.such long assignmentsC.long assignments D. so very long assignments31 Bats find their way by squeaking _and guiding themselves by echoes.A. very fast B. very fastly D. much faster D. most fastly32. Your application will be considered ___your file is completed.A. as quickly as B. as soon as C. as fast as D. as early as33. This dress is prettier, but it costs __that one.A. twice more than B. twice as much as C. as much twice as D. twice so much as34. A new shopping center on the north side will have ______.A. five hundred more than shopsB. as more than five hundred shopsC. five hundred shops more thanD. more than five hundred shops35. The more you study during the semester, ___you have to study the week before exams.A. the less B. the lesser C. less D. the little36. To answer accurately is more important than ______. A. a quick finis B. to finish quicklyC. finishing quickly D. you finish quickly37. When a body enters the earth’s atmosphere, it travels ______.A. in a rapid mannerB. fastlyC. with great speedD. very rapidly38. The salary of a taxi driver is much higher _______.A. in comparison with the salary of a teacherB. than a teacherC. than that of a teacherD. to compare as a teacher39. Frost occurs in valleys and on low grounds ______ on adjacent hills.A. more frequently as B. as frequently thanC. more frequently than D. frequently than40. She can speak _______ in front of Mack, but she can’t eat ______ in his restaurant.A. free, freeB. free, freelyC. freely, freeD. freely, freely41. You will have to practice ______ times before you can do it.A. may moreB. more severalC. more oftenD. more many42. I have been going to Shanghai ______ than I used to.A. lesserB. lessC. fewerD. less often43. Tuition at American university runs ______ one thousand dollars a semester.A. so high asB. as high toC. as high asD. as higher than44. I enjoy the concert last night; they played __ beautiful music.A. suchB. such aC. soD. so a45. Several day ______, I saw the man again on the street.A. lateB. laterC. latterD. last46. When electricity was first invented, people refused to believe such a thing ___.A. impossible B. possibly C. possible D. impossibly47. The reason why so many people sit before the television tonight is that there will be a __show.A. livingB. live C. alive D. lived48. When the three boys met one another, they found they looked very much ______. Then they knew they were triplet.A. likeB. alikeC. likelyD. liked49. The doctor assured the patient that there was ______ with her, but she could not help worrying.A. seriously wrong nothingB. nothing serious wrongC. nothing seriously wrongD. serious nothing wrong50. If you live in Wuhan one day and in Shenyang the next, you ______ the change in temperature.A. are certainly to feelB. certainly feelC. are to feel certainlyD. are certain to feel51. As a safety precaution, all drivers carry only enough money to make change for ______.A. a bill of ten-dollar B. a ten-dollars billC. a ten-dollar billD. a tens-dollar bill52. When I spent holidays Europe, I bought _____ vases.A. two lovely big old GermanB. two lovely old big GermanC. two German big old lovelyD. lovely big two old German53. Everyone will agree that food in the south is as good as ______ in the country A. other regionB. any other regionC. that of any regionD. that of any other region54. Stars are so far away that they are ______ spots of light when seen from the earth.A. nothing more as B. anything more thanC. more thanD. nothing more than55. What deeply impressed his was that magnificent ______.A. eight-century-oldB. eight-centuriesC. old-eight-centuriesD. eight-century’s-old56. _ focus on cultural differences between Chinese and Western societies A. The below text and dialogues B. Below the text and dialoguesC. The text and dialogues belowD. Text and dialogues the below57. People will be able to fly from one planet to another in ______.A. little nasty arrow-shaped tubeB. nasty little arrow-shaped tubesC.arrow-shaped little nasty tubes Darrow-shaped little nasty tube58. Beginning in the late 19th century, the _______ rise in the productivity of England was just ______ less than Germany and the U.S. A. year…slightly B. yearly…slig C. yearly…slightly D. year…slight59. In Spain, officials estimate that ______ 75 percent of the current violent crime is drug related A. much as B. as much as C. as many as D. as great60. You should spend ______ in the study of the various senses and uses of the common words.A. much time as you canB. as time much as you canC. time as many as you canD. as much time as you can61. Professor Chen asked us to write ______ essay on individual differences in second language learning. A. a no more than two-thousand-word B. a less two-thousand-words C. a less than two-thousands-words D. a no more two than thousand word62. Her voice is ______.A. loudB. aloudC. loudlyD. loudness63. That so many advances have been made in ______ is the most valid argument for retaining the research unit.A. such short timeB. so a short timeC. such a short timeD. such short a time64. ______ curriculum includes all experiences which the students may have within the environment of the school. A. Broad speaking B. Speaking bro C. Broadly speakin D. Broadlyspeak65. Since taxi fare in the city may run ______ twenty dollars, I suggest that you take a bus.A. as high asB. as expensive asC. so high thatD. so expensive as66. If negotiations for the new trade agreements take ______, critical food shortages will develop in several countries.A. too much longerB. much too lC. the longestD. the longer67. If he had followed the directions carefully in taking the medicine, he would have felt better ______.A. much quickerB. more quickC. much quicklyD. more quickly68. Since he spent his childhood in France, Jack is able to converse in French ______.A. rather goodB. quite betterC. fairly moreD. rather well69. Of the two cars that the Smiths have, the Plymouth is, without any question, ______.A. the cheapest to run B. the cheaper to runC. cheaperD. more cheaper70. With ______ three inches of rain falling in a six-month period, the farmers found it necessary to irrigate the landA. less thanB. little thanC. fewer thanD. less few than71. On a small marble table in the center of her boudoir stands ______ vase.A. a little exquisite antique brown Chinese porcelainB. an exquisite little antique brown Chinese porcelainC. an antique little exquisite brown Chinese porcelainD. a Chinese antique little expensive brown porcelain72. “When is Tom going to leave? “He is going to leave ______ this week.”A. sometimes B. some time C. sometime D. somewhat73. The librarian insists that Dana take ______ books from library before she returns the dictionary she borrowed last month.A. noB. manyC. not manyD. no more74. The facilities of the older hospital are ______ the new hospital.A. as good or better thanB. as good as or better asC. as good as or better thanD. as good as or better than those of75. ______ iron has relatively few economical uses.A. Chemical pureB. Chemically pureC. Pure chemicalD. Purely chemical76. I walked 8 miles today. I never guessed that I could walk ______ far.A. muchB. thatC. suchD. as77. They _____ to our proposal.A. have not still respondedB. have not responded stillC. have still not respondedD. still have not responded78. True hibernation takes place only among ______ animals.A. whose blood is warmB. blood wormC. warm-bloodedD. they have warm blood79. He works ______.A. loneB. lonelyC. aloneD. lonesome80. A _____ road goes ______ from our college to the center.A. straight…straightB. straightly…straightlyC. straight…straightlyD. straightly…straight【试题答案】1~5 BCAAC 6~10 DBDCD 11~15 BDBAC16~20 AACCB 21~25 CCDCD 26~30 BADBB31~35 ABBDA 36~40 BDCCC 41~45 ADCAB46~50 CBBCD 51~55 CADDA 56~60 CBCBD61~65 AACCA 66~70 BDDCA 71~75 BCDDB76~80 BDCCA。
2024年7月浙江省普通高中学业水平考试——地理仿真模拟试卷01(解析版)
2024年7月浙江省普通高中学业水平合格性考试地理仿真模拟卷01本试题卷分选择题和非选择题二部分，满分100分，考试时间60分钟。
考生注意：1．答题前，请务必将自己的姓名、准考证号用黑色字迹的签字笔或钢笔分别填写在试题卷和答题纸规定的位置上。
2．答题时，请按照答题纸上“注意事项”的要求，在答题纸相应的位置上规范作答，在本试题卷上的作答一律无效。
选择题部分一、单项选择题（本大题20小题。
每小题2分，共40分。
在每个小题给出的四个选项中，只有一项是符合题目要求的，不选、多选、错选均不得分）新研究发现，鸟粪可以降低北极的气温。
每年迁徙至北极地区的鸟类产生的鸟粪被微生物分解后，会释放约4万公吨的氨，氨与海水浪花喷洒出的硫酸盐及水分子混合后，形成大量悬浮在空气中的尘埃颗粒。
这些尘埃颗粒物不仅集中在鸟群附近，在整个北极均有分布。
左下图示意大气受热过程，右下图示意北极地区的海鸟。
完成下面小题。
1．鸟粪对北极地区气温的影响主要环节是（）A．①增强B．②增强C．③增强D．④稳定2．该影响最明显的季节是（）A．春季B．夏季C．秋季D．冬季【答案】1．A2．B【解析】1．根据材料可知，鸟粪被微生物分解后，会释放出氨，氨与海水浪花喷洒出的硫酸盐及水分子混合后，形成大量悬浮在空气中的尘埃颗粒，使得①大气对太阳辐射的反射作用增强，到达地面的太阳辐射减少，最终使得北极气温降低，A正确。
②表示射向宇宙空间的大气辐射，④表示大气逆辐射，②④均为大气辐射，由于气温降低，所以大气辐射应减弱，②不会增强，④不会稳定，BD错误；到达地面的太阳辐射减少，地温降低，③地面辐射减弱，C错误。
故选A。
2．由材料“每年迁徙至北极地区的鸟类产生的鸟粪被微生物分解后”可知，该影响最明显的季节应为微生物最活跃的季节。
北极地区纬度高，气候寒冷，夏季气温较高，微生物数量较多，鸟粪被微生物分解的量较多，形成悬浮在空气中的尘埃颗粒较多，对降温影响最明显，B正确，ACD错误。
等边三角形及直角三角形的相关定理
【模拟试题】（答题时间：60分钟）一. 选择题1. 如图，已知等边△ABC P，则∠APE的度数为（）A. 45°B. 55C. 60°D. 75°2. 斜边上的中线为1，（）A. 0.25B. 1C. 0.5D.3. 已知Rt△ABC中，∠C＝90°，AD平分∠BAC交BC于D，若BC＝18，BD：CD＝5：4，则D到AB的距离为（）A. 8B. 9C. 10D. 184. △ABC中∠C＝90°，斜边AB的垂直平分线交BC于D，BD＝8，∠ADC＝30°，则CD长为（）A. 4B. 12C.D.5. 如图所示，在△ABC中，＝CF，则∠EDF的值为（）A.C. ∠B二. 填空题1. 在△ABC中，∠A：∠B：∠C＝1：2：3，已知BC＝3cm，则AB______cm。
2. ________________。
3. ___________。
4. 在等边三角形ABC的平面内求一点P，使△PAB，△PBC，△PAC都是等腰三角形，具有这样性质的P点有__________个。
5. 如图，AD是△ABC的中线，∠ADC＝45°，把△ABC沿直线AD折过来，点C落在C’的位置上，如果BC＝4，那么BC’的长等于__________。
C’ AB D C三. 证明题1. 已知∠ACE＝90°，AC＝DF＝CF－AF。
2. △ABC是等边三角形，延长CA和AB使AD＝BE，连DB并延长与CE交于F，求证：（1）BD＝EC；（2）∠BFC＝60°3. 在△ABC中，AB＝AC，延长AC到D，使CD＝BF，连DF交BC于E，求证：FE＝ED4. 如图在△ABC中，AB＝5，AC＝3，中线AD＝2，求△ABC面积。
AB CD【试题答案】一. 1. C 2. C 3. A 4. C 5. C二. 1. 62.3.5.三. 1. 先证△ACF≌△CED，再证AF＝CD，从而DF＝CF－AF2. （1）先证△ABD≌△BEC，再证BD＝EC（2）由△ABD≌△BEC，证得∠E＝∠D，再由∠ABD＝∠EBF可证：∠CFB＝∠BAC＝60°3. 过F作FG//AD交BC于G，可证△BFG为等腰三角形，进而FG＝BF，再由CD＝BF，可得FG＝CD，再证△FEG≌△DEC，可证FE＝ED4. 延长AD至E，使DE＝AD，连CE，由此CE＝AB＝5，再由AE＝4，AC＝3，可证△AEC为Rt。
冀教版八年级上册英语Unit 5 模拟试题二
Unit 5 My Future【模拟试题】（答题时间：60分钟）一. 根据句意及首字母填空：1. My biggest a_____ is to be a scientist.2. Do more sports to i_____ your health.3. China is f_____ for the Great Wall in the world.4. Can you s_____ your name in English?5. Could you give me some a_____ on my English?二. 单选：（）1. There’s little _______ in the bag. I want to buy some.A. riceB. applesC. wineD. beer（）2. “Help ______ to some soup.” she said to the twins.A. youB. yourC. yourselfD. yourselves（）3. Zhou Jielun is so cool. I’m his fan,___________.A. so am IB. so I amC. so do ID. so I do（）4 This kind of food is ________.A. something EnglishB. English somethingC. some EnglishD. English some（）5. Jay is one of _______ in China.A. a popular singerB. more popular singersC. the most popular singerD. the most popular singers（）6. Please give me ______ water.A. a bit ofB. lotC. a fewD. a bit（）7. How are the twin brothers? They are _______ fine.A. allB. bothC. eitherD. neither（）8. Don’t open the door unt il the car_______.A. stopB. stopsC. stoppedD. will stop（）9. ______ he will come here tomorrow.A. May beB. May isC. MaybeD. Can he（）10. You’d better ______ for school again.A. not be lateB. not to be lateC. be not lateD. to not be late三. 完型填空：Mr Black works in a hospital（医院）. As a good 1 , the people in the town like him. He’s often 2 to the patients（病人）and looks them over carefully. 3 he’s always busy and has little time to rest. One morning Mr Black got to the hospital and saw there was a fat woman in the 4 . He called her into his office and asked, “ 5 , madam?”“It was my birthday yesterday, sir”, said the woman. “My husband gave me a 6 . But I couldn’t push my way in（挤进）it.”“7 , madam,”said Mr Black, “You must lose some weight（减肥）. You’ll be able to 8 your coat, if you do all that I say.”“You’re9 , sir,”said the rich woman. “He bought me not a coat, but an expensive 10 .”（）1. A. doctor B. farmer C. teacher D. cleaner（）2. A. bad B. fine C. cold D. kind（）3. A. Or B. But C. So D. Then（）4. A. classroom B. waiting room C. park D. zoo（）5. A. How do you do B. How are youC. What’s the matterD. How old are you（）6. A. house B. coat C. shop D. present（）7. A. It doesn’t matter B. It’s a pleasureC. I have no ideaD. It’s my favourite（）8. A. put B. wear C. buy D. wash（）9. A. right B. wrong C. easy D. safe（）10. A. bike B. bus C. car D. truck四. 阅读理解Here is a story told an American general（将军）who was a very important figure in the American army during the First World War. Everybody in the Untied States knew him and manypeople wished to have a picture or something of his in their homes. Soon after the war the general returned to Washington. One day he went to a dentist（牙医）and had six teeth pulled out. A week later the general heard that his teeth were being sold in curiosity shops（古玩店）at $ 5 each. On each of the teeth there was a label（标签）with the name of the general and words, “Buy these teeth and show them to your friends at home.”The general got angry. He rushed to his office and ordered six officers to go around the city and buy all his teeth. The officers went out and visitedevery curiosity shop in the capital. They were away from the office all day. In the evening they returned and put on the table in front of the general the teeth they had bought. They had collected 175 teeth.（）1. The general’s teeth were sold in ____.A. the museumB. the special shops selling some rare and interesting thingsC. the department storeD. the hospital（）2. In the evening, the officers went back with all the teeth which cost _____.A. $ 785B. $ 1, 050C. $ 157D. $ 875（）3. The general felt ____ when he heard his teeth were sold.A. happyB. excitedC. sadD. angry（）4. There was the general’s name on the label of each tooth. This shows that _____.A. the general’s name was known by most of the people in WashingtonB. the shop-keeper wanted to have more customers buy the teethC. the shop-keeper tried to make the general more popularD. Both A and C（）5. The general ordered his men to____.A. look for his teeth and buy all of themB. arrest the dentist at onceC. make all the shops stop selling teethD. buy all the teeth in all the shops【试题答案】一. 1. ambition 2. improve 3. famous 4. spell 5. advice二. 1—5 A D A A D 6—10 A B B C A三. 1—5 A D C B C 6—10 D A B B C四. 1—5 B D D B A。
语法专项(三)
【模拟试题】（答题时间：60分钟）一、用所给单词的正确形式填空。
1. They are all good______(run).2. We teach ____________（they）English.3. My cousin ____________（have）a new dictionary.4. There are four ____________（tomato）on the table.5. My mother often____________（buy）some nice food on weekends.二、单项选择1. I don’t like _______ thrillers ____________ playing baseball.A. watching; orB. watching; andC. to watch; orD. to watch; and *2. I like you, Tom. Let’s __________ good friends.A. doB. knowC. beD. have3. Can Lily ____________ French?A. sayB. speakC. tellD. talk4. ___________! Tom. It’s 7: 00 o’clock in the morning.A. Get toB. Go to bedC. Get onD. Get up5. —____________?—It’s six o’clock.A. What time is itB. What day is itC. How old are youD. What is the date6. Football is ________ game.A. boys’B. a boy’sC. boy’sD. boys7. The teacher and the students talk ____________ English ____________ class.A. with; inB. in; in theC. in; inD. with; in the8. Look at these ___________. Victor has ____________ aunt and two uncles.A. photos, aB. photos, anC. photoes, theD. photoes, an9. —___________? —Yes, please.A. How are youB. Can I help youC. What can you do for meD. Can you play guitar10. Miss White is a good teacher. She usually _________.A. helps me to EnglishB. help me learning EnglishC. helps me with my English.D. helps me for English.11. Maria likes documentaries _______ cartoon, ______ she doesn’t like thrillers.A. and , andB. and, butC. but, butD. or, and*12. _________ has an apple.A. Each boysB. Each a boyC. A each boyD. Each boy*13. Do you know ______ , Lily.A. what color is itB. how old is heC. where is the schoolD. what club she wants to join14. Let’s ____________ volleyball. That _________ good.A. playing, isB. play, soundC. play, is soundD. play, sounds*15. Peter often _________ my textbook ________ home.A. brings, toB. brings, \C. takes, \D. takes, to三、改错题，下列句中均有一处错误，找出来并改正。
初一语文模拟试卷练习词语.句子
初一语文模拟试卷练习词语.句子一.复习要点（一）词语1. 能把握词语在具体语言环境中的意义和感情色彩。
2. 了解词的分类，对六种实词和六种虚词能加以辨别。
3. 能正确理解和运用学过的多义词、同义词、反义词。
4. 能修改常见的语病。
（二）句子1. 理解句子含义，掌握理解句子的几种方法。
2. 能辨认并修改常见的病句。
3. 认识多种句式，并会典型的句式变换。
【模拟试题】（答题时间：60分钟）词语一. 根据下列句子的意思，分别概括出一个确切的成语：1. 用自己的行动作出榜样。
（）2. 感情积聚在心中得不到发泄。
（）3. 形容非常赞赏。
（）4. 比喻同处，互相救助。
（）5. 用新的眼光去看待。
（）6. 赞美看到的事物好到极点。
（）7. 形容非常驯服恭顺。
（）8. 忍不住笑了。
（）9. 无法计算那个数目，形容极多。
（）10. 没有根据的说法。
（）二. 在空白处填上反义词构成成语：拈怕积成顶立深浅共赏见怪人己奉违辕辙自如逢源顿挫三. 在空白处填上叠词构成成语：夺目不安小心告诫玉立文质四. 在空白处填上近义词构成成语：心魄 仙琼 高阔 愁苦 凶恶 无无 时境 首耳 盘卧 声迹 引据 左右五. 将下列各组词中不同类的一个找出来，画上横线： 1. 牡丹 碧桃 青莲 植物 腊梅 2. 曲艺 电影 歌舞 报纸 戏剧 3. 长江 黄河 淮河 珠江 湖泊 4. 梧桐 森林 白杨 垂柳 槐树六.按要求给下列词语归类：⑴鲁迅⑵朗读⑶迅速⑷愉快⑸热爱⑹科学⑺注视⑻经验 ⑼勇敢⑽愿意⑾边疆⑿历史⒀优秀⒁急躁⒂调查 动词： 名词： 形容词：七. 判断下列句子表达的意义是否一致，在括号里画“√”或“×”： 1. ⎩⎨⎧之一。
千克上涨到原价的六分春节期间，猪肉价格每元。
元上涨到每千克每千克春节期间，猪肉价格由1412 （）2. ⎩⎨⎧年的二分之一。
年的产值是红星中学校办工厂番。
年的产值比去年翻了一红星中学校办工厂9619951996（） 3. ⎩⎨⎧。
高考第一轮复习——铁、铜的性质(习题+解析)
1、下列物质混合时，铁能溶解但无气体产生的是A. 铁粉与盐酸B. 铁屑与稀硫酸C. 铁粉与硫酸铜溶液D. 铁钉浸入水中2、在含有Cu （NO 3）2、Mg （NO 3）2和AgNO 3的溶液中加入适量锌粉，首先置换出的是：A. MgB. Cu C . Ag D. H 23、CuS 和Cu 2S 都能溶于硝酸，它们高温灼烧的产物相同，以下鉴别CuS 和Cu 2S 两种黑色粉末的方法合理的是：A. 将两种样品分别溶于硝酸，区分反应快慢B. 将两种样品分别溶于硝酸，区分溶液的颜色C . 取两种同质量的样品分别在高温灼烧，区分残留固体的质量D. 取两种同质量的样品分别在高温灼烧，区分残留固体的颜色4、由FeSO 4和Fe 2(SO 4)3组成的混合物中，含硫为a ％，则所含铁的质量百分含量为A. 3a ％B. (100－2a)％C. 20％D. 1－3a ％5. 质量相同的下列金属， 分别跟足量盐酸完全反应产生氢气体积最多的是：A. 钠B. 铝C. 镁D. 锌6、将适量铁粉放入三氯化铁溶液中，完全反应后，溶液中的Fe 3+和Fe 2+浓度相等. 则已反应的Fe 3+和未反应的Fe 3+的物质的量之比是：A. 2∶3B. 3∶2C. 1∶2D. 1∶17、由FeO 、Fe 2O 3和Fe 3O 4组成的混合物，测得其铁元素与氧元素的质量比为21∶8，则混合物中FeO 、Fe 2O 3和Fe 3O 4的物质的量之比可能是：A. 1∶2∶1B. 2∶1∶1C. 1∶1∶1D. 2∶2∶58、某人设想利用①3FeCl 2＋4H 2O −−→−℃500Fe 3O 4＋6HCl ＋H 2 ②Fe 3O 4＋23Cl 2+6HCl −−→−℃1003FeCl 3＋3H 2O ＋21O 2 ③3FeCl 3−−→−℃3003FeCl 2＋23Cl 2这三个反应的联合与循环，主要用来生产能解决环境和能源问题的某种气体，该气体是：A. O 2B. Cl 2C. HClD. H 29、把a g 铁铝合金粉末溶于足量盐酸中，加入过量NaOH 溶液。
暑假专题：八年级(下)基础知识归纳与练习
【模拟试题】（答题时间：60分钟）一、单项选择1. It’s about from the school to my home.A. ten minutes walkB. ten minutes’ walkC. ten minute’s walkD. ten-minutes walk2. Have you seen on the road?A. any trafficsB. some trafficsC. any trafficD. some traffic3. —Who is the man in the blue car?—He is father.A. Kate’s and Mary’sB. Kate and Mary’sC. Kate and MaryD. Kate and Mary of4. —Where is Tom?—He left a saying that he has something to do.A. informationB. newsC. messageD. excuse5. He had something to write down and asked me for .A. a paperB. some papersC. some pieces of papersD. some pieces of paper6. delicious food you have cooked!A. WhatB. What aC. HowD. How a7. earth is bigger than moon.A. The, aB. The, theC. An, aD. An, the8. We always have rice for lunch.A. /, /B. the, /C. /, aD. the, the9. There are many trees on of the road.A. both sideB. each sidesC. every sideD. either side10. There is with my computer. It works well.A. nothing wrongB. anything wrongC. something wrongD. wrong anything11. —Put on more clothes when you go out.—Thank you! I can look after .A. meB. IC. ourselvesD. myself12. —Which do you prefer, a bottle of orange or a cup of tea?—, thanks. I’d like just a glass of water.A. EitherB. NeitherC. NoneD. Both13. About of the workers in the factory are women.A. third fifthsB. third fifthC. three fifthsD. three fifth14. Now children, turn to page and look at the picture in Lesson Two.A. twentieth, oneB. twenty, oneC. twentieth, firstD. twenty, first15. They good friends.A. becameB. became toC. becomeD. are becoming16. They us in the soccer game.A. wonB. failedC. beatD. lost17. The harder you , the better grades you’ll get.A. studyB. will studyC. are studyingD. studied18. He told me that he eighteen.A. wasB. isC. will beD. had been19. We will begin our class as soon as the teacher .A. cameB. comeC. is comingD. comes20. They in Beijing since 2005.A. livedB. would liveC. have livedD. are living21. My mother asked me when I home.A. wentB. will goC. goD. has gone22. We haven’t decided when leave for Paris.A. toB. forC. willD. would23. This kind of skirt looks and sells .A. nice, wellB. nice, goodC. well, wellD. good, nice24. The coat is a little small. Can you show me a one?A. largeB. largerC. largestD. a little large25. Of all the students, Linda draws carefully.A. veryB. muchC. moreD. most26. Would you mind the music? I’m studying.A. turning downB. turning upC. turn offD. turn on27. Bob never does his homework Mary.A. as careful asB. as carefully asC. more careful asD. so careful as28. It’s hard to keep the house with three children.A. cleaningB. to cleanC. cleanedD. clean29. We London twice. So we know it well.A. have gone toB. have been toC. wentD. go to30. —Tom has never been late, has he?—. He always arrives at school early.A. Yes, he hasB. No, he hasn’tC. Yes, he isD. No, isn’t二、句型转换1. —I have read the book. （同义句替换）—Me, too.—So .2. There are more than sixty students in the class. （同义句替换）There are sixty students in the class.3. The population of the village is about 2,000. （提问）the population of the village?4. The dress is too big. She can’t wear it. （合并为一句）The dress is big wear.5. Take the medicine and you will get better soon.（改为条件状语从句）take the medicine, you’ll get better soon.6. He’s been working here since he was eighteen. （提问）he been working here?7. Don’t watch TV so long, ? （完成反意疑问句）8. She’s gone to the countryside. （改为一般疑问句）she to the countryside?9. Why don’t you get her a scarf?（同义句替换）get her a scarf?10. There will be more people in 50 years. （改为否定句）There more people in 50 years.三、完形填空Allan was worried. This was his first time to go traveling 1 . He did not know how to find his seat, 2 he went to the air hostess (空姐) and asked, “Could you help me? I can’t find my seat.” The air hostess showed 3 his seat and told him not to walk around when the plane 4 . And she also said that Allan’s ears might feel 5 strange, but he 6 need to worry about it because many people felt 7 that. When the plane was flying very high, Allan could stand up and walk around. He could 8 books, newspapers or see films. The air hostess would 9 food and drinks. Allan could enjoy the flight and 10 home soon.( ) 1. A. by ship B. by train C. by car D. by plane( ) 2. A. because B. or C. but D. so( )3. A. him B. he C. his D. her( )4. A. going up B. going down C. was going up D. was going down ( )5. A. a little B. a bit of C. little D. bit( )6. A. doesn’t B. didn’t C. wasn’t D. isn’t( )7. A. in B. for C. as D. like( )8. A. see B. watch C. read D. look( )9. A. hold B. take C. bring D. carry( )10. A. arrive B. arrive to C. get to D. reach at四、阅读理解In China, many parents try to keep their children at home. In Canada, they will sometimes push them out of the house to make them live on their own.If a person over 18 chooses to stay at home, the parents may become worried that their child is simply lazy, or that he will become lazy if he stays there for too long.So in many cases (情况) they will say, “OK, you can stay at home, but you must pay rent (租金), just like you would anywhere else.”In some homes, the parents may make their children do their own washing, cooking and something like that, just like they would if they lived on their own. This is not because the parents are being cruel (残忍的), it’s because they want to be sure their children are not too lazy.In China, parents often show their love and care to their children by trying to take care of their problems. They think by doing so their children will have a better future, because their children can focus on their studies, or their work.1. When a child is 18 years old in Canada, his parents will often .A. keep him at home as usualB. make him live by himselfC. send him abroadD. pay a lot of money for his study and living2. Canadian children ___ when they are 18.A. still stay at home as usualB. have to find somewhere to live outsideC. can stay at home, but they must pay rentD. may be told to find part-time jobs3. Why do Canadian parents let their children do much housework?A. Because they are becoming cruel.B. Because they are busy with their work.C. Because the teachers ask them to do so.D. Because they want to be sure that their children can take care of themselves.4. What do Chinese parents do for their children?A. They often let their children make their own decisions.B. They try to do everything for them.C. They often make them to do much washing and cooking.D. They always ask them to pay rent.5. Chinese parents always hope .A. their children can live on their ownB. their children can take care of themselvesC. their children do anything they want themselvesD. their children can get better marks or jobs【试题答案】一、1~5 BCBCD; 6~10 ABADA; 11~15 DBCDA; 16~20 CABDC; 21~25 AAABD;26~30ABDBB二、1. have I 2. over 3. What is 4. too, for her, to 5. If you6. How long has7. will you8. Has, gone9. Why not 10. won’t be三、1~5 DDACA; 6~10 BDCCA四、1~5 BCDBD。
与有理数有关的概念
【模拟试题】（答题时间：60分钟）一. 精心选一选。
1. 今年二月份某市一天的最高气温为11°C ，最低气温为－6°C ，那么这一天最高气温比最低气温高（ ） A. －17°C B. 17°C C. 5°C D. 11°C2. 如图所示，表示a 、b 、c 在数轴上的位置，下列判断正确的是（ ）A. a ＞b ＞cB. c ＞a ＞bC. a ＞c ＞bD. c ＞b ＞a 3.5不是（ ）A. 有理数B. 整数C. 自然数D. 负有理数4. 一个数等于它的倒数的4倍，这个数是（ ）A. 4. B. 2 C. ±4 D. ±25. 下列说法不正确的是（ ）A. a 的相反数是－aB. 任何有理数的平方都是正数C. 在有理数中绝对值最小的数是零D. 在有理数中没有最大的数 6. 两个数a 、b 在数轴上的位置如图所示，下列式子中正确的是（ ）A. a ＋b ＞a ＞b ＞a －bB. a ＞a ＋b ＞b ＞a －bC. a －b ＞a ＞b ＞a ＋bD. a －b ＞a ＞a ＋b ＞b7. 某项科学研究，以45分钟为一个时间单位，并记每天上午10时为0时，10时以前为负，10时以后为正，例如9：15记为－1，10：45记为1等，依次类推，上午7：45应记为（ ） A. 3 B. －3 C. －2.5 D. －7.458. 北京等5个城市的国际标准时间（单位：h ）可在数轴上表示如下：如果将两地国际标准时间差简称为时差，那么（ ）A. 汉城与纽约的时差为13hB. 汉城与多伦多的时差为13hC. 北京与纽约的时差为14hD. 北京与多伦多的时差为14h 9. 若a 的相反数是3，则a 的倒数是（ ）A. －31 B. －3 C.31 D. 310. 一个数x 在数轴上的位置如图所示，则（ ）A. ｜x ｜＜－1B. ｜x ｜＜0C. ｜x ｜＞1D. ｜x ｜＝0二. 细心填一填。
一轮复习 Units 1-6
【模拟试题】（答题时间：60分钟）I. 单项选择1. Her ____ name is Kate.A. lastB. firstC. secondD. family2. This apple is green. His family name is _____, too.A. RedB. BlackC. greenD. Green3. The boy ____ blue ____ Tom.A. in, isB. is, inC. are, onD. of, are4. My orange is ______ .A. a orangeB. orangeC. a greenD. oranges5. —What’s in the lost and found case?—_________.A. Set of keysB. A set of keyC. A set of keiesD. A set of keys6. Who’s that? __________.A. That’s a wai tress.B. This is a girl.C. This is Ms Wang.D. I t’s Mrs Wang.7. Your uncle is your father’s______.A. sisterB. brotherC. friendsD. father8. Can I see your ID card? ______.A. OKB. Can youC. GoodD. You see9. Would you please __ __ me a pen?A. takeB. bringC. knowD. let10. —Are the things in this shop dear?—No, they are ______. ”A. goodB. $ 12C. low priceD. cheap11. —______, that’s a car.—Where? I can’t ___ __ it.A. Look, lookB. Look, seeC. Look at, seeD. See, look at12. _____ a cute dog. But I don’t know __ ___ name.A. It’s, itsB. Its, it’sC. It’s, it’sD. Its, its13. What does he __ __ ___ _ dinner?A. has, forB. has, atC. have, inD. have, for14. ______ salad do you eat?A. How manyB. What manyC. How muchD. What much15. Does your sister ___ _ books every day?A. watchB. seeC. readsD. read16. I buy these watches ___ __ them __ _ $ 12.A. to, atB. from, forC. to, forD. from, at17. Sam is ___ _ years old. He’s a good boy.A. forteenB. fourtenC. fortyD. fourteen18. Let’s sing a song for him____A. That’s all right.B. That’s right.C. All right.D. Right.19. Jerry isn’t _____. He’s ______.A. an English, AmericanB. English boy, AmericanC. English, AmericanD. English, a American20. —I’m sorry I’m late. —_______.A. That’s right.B. That’s all right.C. You’re welcome.D. That’s OK.II. 句型转换：1. My sister likes strawberries. (变为一般疑问句)_____ your sister _____ strawberries?2. There are some notebooks in my backpack. (变为否定句)There _____ _____ notebooks in my backpack.3. These are some English dictionaries. (变为单数)___________________________________.4. Jack usually has a hamburger and a cup of milk for lunch. (对划线部分提问)____ _ ___ __ Jack usually ____ _ for lunch?5. She watches TV at home every day. (对划线部分提问)______ ______ she ______ TV every day?6. Mr. Smith wants to buy a new coat. (对划线部分提问)______ __ __ Mr. Smith ______ to ___ __?7. This desk is old. (同义句)This is __ __ __ ___ desk.8. He’s K im’s father. (同义句)Kim is ____ _ _______.III. 用所给单词的适当形式填空：1. It’s not ____ alarm clock. (a)2. Let __ __ play tennis. (I)3. Where __ Tom’s parents?(be)4. Many ___ _. That’s all right. (thank)5. I see your ___ ___. They are fine. (grandparent)6. Your __ __ are my pen ______. (朋友)7. His ____ _ are very cute. (女儿)8. The two ___ _ are good. (家庭)9. ___ __ answers are right. (they)10. Her sister and his brother aren’t my __ _ __ (表兄妹)Ⅳ. 改错1. This is a his pen.________________________________.2. Her pen is a yellow.________________________________.3. Are your name Tom?________________________________.4. You pen is OK.__________________ _____________.5. Tom and Peter is English.________________________________.6. How are you spell “pen”?________________________________.7. That is they school.________________________________.8. These is his brothers.________________________________.9. Tom, where is his keys?________________________________.10. Let’s play the football.______________________________ _.Ⅴ. 翻译填空1. 你的名字是Peter吗？是的。
Unit4StayHealthy模拟试题5(冀教版九上)
Unit 4 Stay Healthy【模拟试题】（答题时间：60分钟）一. 选择题。
1. What is ____with your watch?A. the wrongB. wrongC. matterD. a matter2. I have to get up early tomorrow, please____.A. wake up mineB. wake mine upC. wake up meD. wake me up3. I don’t feel ____ today. So I have to stay at home.A. goodB. niceC. wellD. will4. Will you please take this shoppingbag___?A. to home B .home C .at home D. in the home5. When did you ____the hospital?A. reachB. get toC. arrive atD. all the above6. The boy is old enough to_____.A. wear clothesB. put on coatsC. get dressedD. dress clothes7. I want to know what_____.A. wrong isB. is wrongC. the matterD. is matter8. Hello! Mrs Smart! I want to talk ____ you ____ my daughter.A. with; withB. to; t oC. with; aboutD. with; to9. Take ____ and it will make you___ better.A. the medicine, feelB. this medicine, feelC. these medicine, to feelD. medicine, to f ell10. I want to know _____.A. when do they finish the workB. when will they finish the workC. when they will fi nish the workD. when they do finish the work二. 填空题。
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【模拟试题】（答题时间：60分钟）第I卷（24分）一、下列每个题均有四个答案，其中只有一个符合题意。
请将正确的选项填在题后括号内。
（每小题2分，共8分）1、下列加点词语中注音完全正确的一项是（）A、剔．出（tì）贮．藏（zhù）炫．耀（xuàn）鲜．为人知（xiǎn）B、颠簸．（bǒ）刹．那（shà）教诲．（huì）近在咫．尺（zhǐ）C、折．本（shã）脖颈．（gěng）负载．（zài）情不自禁．（jīn）D、恣．睢（zì）哽咽．（yâ）订．正（dīng）扣人心弦．（xián）2、下列词语中没有错别字的一项是（）A、必竟陡峭壮志未筹变幻莫测B、震怒障璧各行其是中流砥柱C、闲暇蔓延骇人听闻承前起后D、舞弊殉职水乳交融变本加厉3、下列词语中加点字字义相同的一项是（）A、过分．恰如其分．B、反．悔举一反．三C、和．蔼春和．景明D、名．贵莫名．其妙4、下列文学常识表述完全正确的一项是（）A、柳宗元，字子厚，世称柳河东，与韩愈倡导“古文运动”，为唐宋八大家之一，代表作有《柳河东集》等，中学选入课本的文章有《小石潭记》、《马说》、《捕蛇者说》等。
B、老舍，原名舒庆春，字舍予，北京满族人，现代著名小说家，语言艺术大师，曾获北京市人民政府授予的“人民艺术家”称号。
课本中收入的散文有《济南的冬天》，小说《在烈日和暴雨下》等。
C、契诃夫，19世纪法国著名短篇小说家。
代表作有小说《变色龙》、《套中人》，戏剧《樱桃园》等。
D、《左传》，是我国第一部叙事详细、完整的纪传体史书。
儒家经典之一。
相传为鲁国史官左丘明所著，前后记叙了春秋时期二百五十多年的史事。
《左传》具有很高的文学价值，对后世影响很大。
二、理解性默写（每空0.5分，共6分）5、《行路难》中最能表现诗人李白抱负远大、执著自信、勇往直前的诗句是，6、王维《使至塞上》中的诗句“，”描绘了雄奇瑰丽的边塞之景。
7、《钱塘湖春行》中表现白居易在西湖美景中，不能自已，乃至流连忘返的诗句是，8、辛弃疾在《破阵子·为陈同甫赋壮词以寄之》一词中抒发了自己一生的理想与抱负的句子是，9、文天祥在《过零丁洋》一诗中，运用比喻表现宋朝国势危亡、个人身世坎坷的句子是，10、在《生于忧患，死于安乐》一文中，孟子从内外两方面全面说明了导致亡国的原因是，三、综合性学习（10分）①用你自己的话概括图表所表达的内容。
______________________________________________________________________________________________ ________________________________________________________________②针对图表所反映的现状，为唤起人们的忧患意识，请你设计一句富有创意的公益广告语。
__________________________________________________________________________12、某校初三（6）班同学在阅读《西游记》时，对猪八戒这个人物有两种不同看法，为此语文老师组织了一场辩论。
假如你是正方，针对反方辩词该怎么说？（2分）反方：我方认为，猪八戒好吃懒做，见识短浅，在取经的路上，意志不坚定，遇到困难就嚷嚷着要散伙。
而且还经常搬弄是非、耍小聪明、说谎，又爱占小便宜，贪恋女色。
是一个贪生怕死、自私自利的人。
正方：____________________________________________________________________13、“永远的丰碑”是中央电视台《新闻联播》中的一个专题栏目，该栏目每期介绍一位英雄人物的感人事迹，在社会上引起了强烈反响。
请你回答以下问题。
（5分）①“永远的丰碑”的含义是什么？（1分）答：②请你根据下面的材料，为战斗英雄黄继光写几句赞语。
（2分）在抗美援朝上甘岭的战役中，黄继光所在的营奉命去夺取被敌人占领的一个高地，当冲锋部队遭到敌人火力阻击时，黄继光挺身而出，冲向敌人地堡。
他用手榴弹炸掉敌人几个火力点，但还有一个火力点仍在喷着火舌，严重阻碍了战友前进。
这是，他已经受伤，手榴弹也用完了。
为了部队的前进，他忍着伤痛，奋不顾身地扑了上去，用身躯堵住了敌人的机枪射口。
上甘岭战役最后取得了胜利。
答：③请你谈谈观看这个专题栏目后的感受。
（2分）答：第II卷（36分）四、文言文阅读（共10分）阅读文言文，完成14——18题。
[甲]万钟则不辩礼义而受之，万钟于我何加焉？为宫室之美，妻妾之奉，所识穷乏者得我与？乡为身死而不受，今为宫室之美为之；乡为身死而不受，今为妻妾之奉为之；乡为身死而不受，今为所识穷乏者得我而为之：是亦不可以已．乎？此之谓失其本心。
（选自《鱼我所欲也》）[乙]嗟夫！予尝求古仁人之心，或异二者之为．，何哉？不以物喜，不以己悲；居庙堂之高则忧其民；处江湖之远则忧其君。
是进亦忧，退亦忧。
然则何时而乐耶？其必曰“先天下之忧而忧，后天下之乐而乐”乎？噫！微斯人，吾谁与归？（选自《岳阳楼记》）14、下列句子中加点词语解释相同的一项是（）（2分）A. 万钟于我何加．焉牺牲玉帛，弗敢加．也B. 此之谓．失其本心此所谓．战胜于朝廷C. 然则何时而乐．耶心乐．之D. 微斯人，吾谁与归．云归．而岩穴暝15、解释选段中加点词语的意思。
（2分）①是亦不可以已．乎：________________ ②或异二者之为．：________________16、将下列句子翻译成现代汉语。
（2分）①万钟则不辩礼义而受之。
___________________________________________________________________________②不以物喜，不以己悲。
___________________________________________________________________________17、[甲]段阐释了孟子怎样的观点？这一观点让你想起了文天祥的哪句名言？（2分）答：__________________________________________________________________________________________________________________________________________________18、[乙]段中“微斯人，吾谁与归?”表达了作者怎样的思想感情? （2分）答：_______________________________________________________________________五、现代文阅读（共26分）（一）阅读《人生准则》，完成19——23题。
（10分）人生准则①30年前，美国华盛顿一个商人的妻子，在一个冬天的晚上，不慎把一个皮包丢在了一家医院里。
商人焦急万分，亲自连夜去找。
因为皮包内不仅有10万美金，还有一份十分机密的市场信息。
②当商人赶到那家医院时，他一眼就看到了，清冷的医院走廊里，靠墙根蹲着一个冻得瑟瑟发抖．．．．的瘦弱女孩。
在她怀中紧紧抱着的，正是他丢失的那个皮包。
③原来，这个叫希亚达的女孩，是来医院陪病重的妈妈治病的。
相依为命的娘俩家里很穷，卖了所有能卖的东西，凑来的钱还是仅够一个晚上的医药费。
晚上，无能为力的希亚达在医院走廊里徘徊。
突然，一个女人经过走廊时腋下的一个皮包掉在了地上。
希亚达走过去捡起皮包，急忙追出门外，那位女士却上了一辆轿车绝尘而去了。
希亚达回到病房，当打开那个皮包时，娘俩都被里面成沓的钞票惊呆了。
妈妈让希亚达把皮包送回走廊去，等丢皮包的人回来取。
妈妈说，人的一生最该做的就是帮助别人，最不应该的是贪图不义之财，见财忘义。
④虽然商人尽了最大的努力，希亚达的妈妈还是抛下孤苦伶仃的女儿死了。
而她们母女俩不仅帮商人挽回了10万元的损失，更主要的是那份失而复得的市场信息，使商人的生意如日中天，不久就成了大富翁。
被商人扶养的希亚达读完大学就协助富翁料理商务。
富翁临危之际，留下一份令人惊奇的遗嘱：⑤在我认识希亚达母女之前我就已经很有钱了。
可当我站在贫病交加生命垂危却拾巨款而不昧的母女面前时，我发现她们最富有，因为她们恪守着至高无上的人生准则，这正是我作为商人最缺少的。
我的钱几乎都是尔虞我诈、明争暗斗得来的。
是她们使我领悟到了人生最大的资本是品行。
我收养希亚达既不为知恩图报，也不是出于同情，而是请她当我做人的楷模。
有她在我的身边，我会时刻铭记，哪些该做，哪些不该做，什么钱该赚，什么钱不该赚。
我死后，我的亿万资产全部留给希亚达继承。
这不是馈赠，而是为了我的事业能更加辉煌昌盛。
⑥富翁的儿子看完父亲的遗嘱，毫不犹豫地在财产继承协议书上签了字：我同意希亚达继承父亲的全部资产。
只请求希亚达能做我的夫人。
希亚达看完富翁儿子的签字，略一沉吟，也提笔签了字：我全部接受先辈留下的——包括他的儿子。
19. 请用简洁的语言概括第①—③自然段的大意。
（1分）答：20. 第②自然段加点词语在表达上起什么作用？（2分）答：21. 你认为富翁决定把全部财产留给希亚达的主要原因是什么？（2分）答：22. 读了全文，你认为“人生准则”是什么？（2分）答：23. 下面两题，任选其中一小题作答。
（3分）（1）假如你是希亚达，会接受富翁的遗嘱吗？为什么？（2）假如你是富翁的儿子，会同意父亲的遗嘱吗？为什么？答：（二）阅读《神秘的海啸》，完成24——28题。
（9分）神秘的海啸①2004年12月26日，印度尼西苏门答腊岛北部附近海域发生里氏8.9级地震。
地震引发海啸，造成印尼、斯里兰卡、印度、泰国、马来西亚等国共15万人死亡。
究竟什么是海啸？②海啸是一种具有强大破坏力的海浪。
发生在海底的地震、火山爆发、宇宙天体撞击等，都可能会引起海啸。
海底地震是引发海啸的主要原因。
海底发生强烈地震时，海底地层发生断裂，部分地层猛然上升或者下沉，造成从海底到海面的整个水层发生剧烈“抖动”。
这种“抖动”与平常所见的海浪大不一样。
平常所见到的海浪一般．．只在海面附近起伏，涉及的深度不大，波动的振幅随水深增加衰减很快。
地震引起的海水“抖动”，则是从海底到海面整个水体的波动，其中所含的能量十分惊人。
海啸的物理实质是大量海水在短时间内的激烈运动，如果海底地震不引发海水的大规模位移，就不会引发海啸。
只有发生在深海区的里氏6.5级以上的地震，才有可能引起海啸。
③海底地震引起海啸有两种形式。
某些地震引起海底地壳大范围的急剧下降，海水首先向突然错动下陷的空间涌去，并在其上方出现海水大规模积聚，当涌进的海水在海底遇到阻力后，即翻回海面产生压缩波，形成长波大浪，并向四周扩散。