八年级3月月考卷

大连市实验中学八年级数学月考卷（满分150分 时间90分钟）一．选择题（每题3分，共30分） 1、在x1、21、212+x 、πxy3、yx +3中分式的个数有( )A 、1个B 、2个C 、3个D 、4个2、下列函数是反比例函数的是 ( ) A 、y=3x B 、y=x6 C 、y=x 2+2x D 、y=4x+83、利用分式的基本性质将xx x22-变换正确的是（ ）A 、2122-=-x xx x B 、22222-=-x x xx x C222-=-x x xx x D 、222-=-x x xx x4、面积为4的矩形一边为x ，另一边为y ，则y 与x 的变化规律用图象大致表示为 （ ）5、等腰三角形底边长10 cm ，腰长为13，则此三角形的面积为（ ）A 、40B 、50C 、60D 、706、下列各式计算正确的是（ ） A 、 853a aa =⋅- B 、253--=⋅aaa C 、853a aa =+- D 、253--=+aaa7、分别以下列四组数为一个三角形的边长：（1）3，4，5；（2）5，12，13； （3）8，15，17；（4）4，5，6.其中能构成直角三角形的有（ ）A 4组B 3组C 2组D 1组8、在函数y=x1的图象上，有三个点（1, y 1）, (21, y 2), (-3, y 3), 则y 1,y 2,y 3的大小关系为（ ）A 、y 1＜y 2 ＜y 3 B 、y 3＜y 2＜y 1 C 、 y 2＜y 1 ＜y 3 D 、y 3＜y 1＜y 2 9、如图，函数k kx y +=与ky x=在同一坐标系中，图象只能是下图中的( )10.如图，已知双曲线)0k (xk y＞=经过直角三角形OAB 斜边OB 的中点D ，与直角边AB 相交于点C ．若△OBC 的面积为3，则k 值为（ ）A 、1B 、2C 、 3D 、4二．填空题（每小题3分，共30分） （第10题图） 11、计算：()=-01 =⎪⎭⎫⎝⎛-13112、当x 时，分式42+-x x 有意义 当x 时，分式11x 2+-x 的值为零。

八年级英语下第一次月考班级：_________姓名：___________学号：________ 得分:_________ 一．按要求写出下列单词：（10分）1.with (反义词)_________2. please(形容词) _______3.sunrise（反）_________4.water(动词）__________e (形容词)_________6.leaf (复数)________7.cut (现在分词)_________.8.dirt(形容词)__________9.sun(形容词)___________ 10.gentle（副词）___________二．用所给词的适当形式填空：（10分）1. Look at the cloud! It is going to__________(rain).2. Jenny is__________(scare) of letting us down.3. It will be____________(wind) tomorrow morning.4.The weather will be much _______（dry）tomorrow than it is today.5.I often see him ________（read）books under the tree.6.We should ______(种植)more trees every year.7. Can you give me a p______?8. Lanzhou is a _______(北方的)city.9. Don’t be s______ when you give a report in front of your classmates.10.Water is one of our _____ (基本的)needs.三．单选题：（25分）( )1.Thanks ____ helping me ___ my Chinese.A. to; inB. to; withC. for; withD. for; in( )2. Danny, please fill the bottle ________ hot water.A. withB. forC. aboutD. in( )3. There ____ a thunder storm tomorrow.A. will isB. will beC. is willD. will have( )4.The book is very____. So I am in it.A.interesting, interestingB. interested, interestedC. interesting, interestedD. interested, interesting( )5.Brian wanted her a push.A .give B.to give C.gives D.a little( )6.There is in the newspaper.A. anything newB. new anythingC.something newD.new something( )7. I ask her for orange juice, but she didn`t haveA.any, anyB.some,anyC.some, someD. any,some( )8.We dug a big hole______the garden.A. onB. inC. overD. under( )9. The sun _______early every morning.A. setB. riseC. setsD. rises( )10.. The tables wood.A. is made fromB. are made fromC. are made ofD. made of ( )11. The temperature will drop__zero . You’d better take a winter coat with you.A. aboveB. belowC. overD. under( )12. Don’t forget____ the window when you leave.A. closeB.to closeC. closedD. closing( )13. We can’ t live _______water.A. withB. withoutC. useD. and( )14. It’s pleasant ______ in summer.A. swimB. swimmingC.to swimD. swims( )15. When it comes to ______ ,you can’t beat him.A．play B．playing C．played D．plays( )16. Leaves use water _____ food.A. to makeB. makeC. makingD. made( )17. There are _____ students on the playground.A.one hundred ofB. two hundreds ofC. hundreds ofD. two hundreds ( )18. I won’t believes it____I see it with my own eyesA afterB whenC untilD while( )19.The weather is ______ and cold these days in the southwest.A. rainyB. rainC. rainsD. raining( )20. We are going to have fun ____ English together.A. to learnB. learningC. learnD. learnt( )21.It’s time___us___do morning exercise.A for, forB for, toC to, forD to, to( )22 .The students get on the bus ______ .A. one in oneB. one to oneC. one after oneD. one by one ( )23. The plane from the USA arrived___the morning of February 5th.A inB atC byD on( ) 24. I’ve two books, one is English, _______is Chinese.A. otherB. anotherC. the otherD. others( )25.Please _____ the desk ______ paper .A. cover; inB. cover; withC. covered ; withD. cover; on四、选词填空:（15分）A1. Jenny, ________ you ___________helping me practice my English .2. Lily, look after your little sister .Don’t let her ______________the bed.3. They _____________ sunshine during the long rainy Days .4. This dress fits you very well .You _________ a movie star in it .5. Be careful ! ______________to that bar ! I’m coming to help you .BWhen we think of ________ , we think of a season of fine ,warm weather and clear ,fresh air .We__________ of new life ,green plants and budding trees all _______ us .Everyone _______for spring .________ is a short season in many places around the world .But in my hometown ,it feels like spring _______ all year round.The weather here is________ too hot nor too______ ,There’s plenty of sunshine too ,with about 2250 hours of sunshine every year .Because of the spring-like weather ,you can find hundreds of beautiful _______and trees anytime of the year .Can you _______my hometown? Yes,it’s Kunming-“the Spring City”.long for hold on look like fall off thank……for neither plenty flowers cold nearly around longs think五．完形填空：（10分）There are __1_ season in a year in China: spring, summer, autumn and winter. __2__ is the best season of the year. Everything begins to grow, __3__ comes after spring. It’s the hottest season. Autumn is a __4___ season. The farmers are busy __5___ the harvest. The coldest season is winter.Near the North Pole（北极）there are only __6__ seasons — winter and summer. Nights are long in winter, __7__ more than two months, You can’t see the sun, even __8__ noon, In summer ___9__ are long.For more than two __10__ , the sun never sets.（）1. A. one B. two C. three D. four（）2. A. Spring B. Summer C. Autumn D. Winter（）3. A. Spring B. Summer C. Autumn D. Winter（）4. A. hot B. cold C. bad D. busy（）5. A. in B. with C. at D. on（）6. A. one B. two C. three D. four（）7. A. in B. at C. with D. for（）8. A. in B. at C. with D. for（）9. A. day B. night C. days D. nights（）10. A. days B. weeks C. seasons D. months六．阅读理解(20)判断正误，正确的打T ，错误的打FABirds can fly in the air .Fishes can swim in water .Tigers live on land. They are different but they are all animals .People like many interesting and beautiful animals but also dislike many of them .The Mickey Mouse（米老鼠）appears（出现）on a lot of toys and clothes for children .It is children’s favorite all over the world .But a real mouse isn’t cute . No one likes it .( )1. Tigers can’t fly .( )2. People like all animals .( )3. The Mickey Mouse is a real animal in the zoo .( )4. Children like Mickey Mouse very much .( )5. A real mouse is also cute .BBeijing is the capital of China. Winter is often very cold in Beijing. The wind is also strong. Spring in Beijing is warm,but it's often windy in spring. In summer Beijing is hot. Autumn is the best season of the year. Autumn in Beijing is also very beautiful. If you want to have a visit to Beijing, autumn is the best time.Beijing is fast becoming a popular place of interest. Every year there are a lot of visitors coming to Beijing,and among them ,there are many foreigners.The city has many places of historic interest(历史名胜) and scenic beauty(风景点),such as the Forbidden City, the Temple of Heaven, the Summer Palace, the Great Wall. In the year 2008 Beijing hold the Olympic Games. Beijing is becoming more and more beautiful.( ) 6.It's in Beijing in winter.A. cold B .windy C .hot D. A and B( ) 7. is the best season of the year in Beijing.A .Spring B.Winter C. Summer D.Autumn( ) 8. If you want to visit Beijing, you'd better come in .A. JanuaryB. springC.autumn D winter( )9. Many come to Beijing every year.A.workersB. foreignersC.doctorsD.students( ) 10.Which country hold the Olympic Games in 2008?A.ChinaB.The U.S.C.EnglandD.Japan七、补全对话（5分）A：What bad weather! It’s rather cold, isn’t it?B:Yes , it is. 1 .A:It’s about seven degrees. We can’t go out.B:Shall I turn on air-conditioner(空调)?A: 2 Are you from Huanggang?B:Yes,I am. It’s a very beautiful place.A: 3B:It’s very pleasant. It’s often warm and windy in spring. It’s always hot in summer. A:Is winter the coldest season?B: 4A:Well, what’s the weather like tomorrow hereB:I think it’s going to get better.A: 5B:The radio says the temperature will stay about thirteen degrees and then the sun will come out later.八．书面表达，（5分）Spring is coming1春天来了，天气变得暖和了，数变绿了。

初中八年级生物(上册)月考卷及答案(时间：60分钟分数：100分)班级：姓名：分数：一、选择题（共25个小题，每题2分，共50分）1、俗话说“食不言，寝不语”，吃饭时不能大声谈笑是有科学道理的，其主要原因是（）A．流经消化器官的血量减少B．食物容易由咽误入气管C．唾液腺分泌唾液的量减少D．有利于保护声带2、下列消化液中不含消化酶的是（）A．胰液B．胃液C．胆汁D．肠液3、下列人类疾病与激素分泌无直接关系的是（）A．甲亢B．脚气病C．糖尿病D．肢端肥大症4、下列四种生物中，不具有细胞结构的是（）A． B． C． D．5、题图为某夫妻体细胞中染色体上一对基因（Aa）示意图，下列叙述错误的是（）A．基因A和a控制的性状是一对相对性状B．夫妻双方都表现出基因A所控制的性状C．该夫妻的子女表现显性性状的概率为1/4D．该夫妻子女基因组成（基因型）有3种可能6、关于生物的生殖和发育，下列叙述正确的是（）A．在合适的外界条件下，完好的鸡卵都能孵化出小鸡B．蝴蝶是由“毛毛虫”变成的，“毛毛虫”处于发育过程中的幼虫阶段C．青蛙的生殖和幼体的发育必须在水中进行，因此都要通过鳃进行呼吸D．马铃薯通常采用带芽的块茎繁殖，这种繁殖方式属于出芽生殖7、下列生物中不是用孢子来繁殖的是A．木耳B．蘑菇C．霉菌D．乳酸菌8、某人因车祸大腿受伤（如图所示），鲜红的血液喷射而出。

请据图判断受伤的血管及急救时控制血流的位置分别是（）A．动脉 a处B．静脉 a处C．动脉 b处D．静脉 b处9、制作人口腔上皮细胞的临时装片时，用于漱口的液体、载玻片上滴加的液体、染色用的液体分别为（）A．碘液、生理盐水、自来水B．碘液、生理盐水、凉开水C．碘液、自来水、生理盐水D．凉开水、生理盐水、碘液10、下列植物中属于种子植物的是（）A．水绵B．葫芦藓C．油菜D．肾蕨11、下列有关动物行为的叙述，正确的是（）A．马随着音乐的节奏踏起优美的舞步是先天性行为B．大山雀偷喝牛奶是由体内的遗传物质决定的行为C．具有社会行为的动物，群体中存在等级，往往是年长者为“首领”D．蝶蛾类的雌虫能够分泌吸引雄虫的性外激素，属于个体间的信息交流12、下列关于细菌、真菌和病毒的说法完全正确的一组是（）①细菌、真菌和病毒都有遗传物质②细菌、真菌和病毒都能独立生活③酵母菌既可以用来制面包发馒头又可用来酿酒④所有的病毒对人类都是有害的A．①②B．②④C．①③D．①④13、花生播种前常要松土的主要原因是种子萌发需要（）A．充足的空气B．适宜的温度C．适量的水分D．一定的光照14、爬行动物比两栖动物更适应陆地生活的原因是（）①体表覆盖角质鳞片或甲②用肺呼吸③生殖和发育离开了水④卵表面有坚韧的卵壳⑤皮肤裸露A．①②B．①②③C．④⑤D．①②③④15、小王同学用显微镜观察口腔上皮细胞临时玻片标本时，要使视野内看到的细胞数目最多，应选择的镜头组合是（）A．甲、乙B．甲、丁C．乙、丙D．乙、丁16、下列关于生物进化的叙述，错误的是（）A．自然选择保留的变异永远有利于该生物的生存B．在极古老的地层中找不到高等生物的化石C．生物的遗传和变异是进化的基础D．野兔的保护色和鹰锐利的目光是它们相互选择的结果17、恒温动物比变温动物更具有生存优势的原因是（）A．恒温动物耗氧少B．恒温动物需要的食物少C．恒温动物更适应环境的变化D．恒温动物所需的能量少18、下图为“探究馒头在口腔中的变化”的实验设计，图中试管均置于37 ℃温水中10分钟，以下说法正确的是( )A．滴加碘液后，①号试管变蓝色、②③不变蓝色B．①与②对照，可探究唾液对馒头的消化作用C．本探究实验的变量不唯一，无法得出任何结论D．②③对照，②号为对照组，可探究牙齿的咀嚼和舌的搅拌对馒头消化的作用19、下列各项中，属于生物都具备的特征是（）A．具有细胞结构B．能繁殖后代C．能进行反射活动D．能将无机物合成有机物20、灰喜鹊与青蛙都能大量消灭农业害虫，是对人类有益的生物，我们应该好好的保护它们。

2024-2025学年八年级生物上学期第一次月考卷（考试时间：60分钟试卷满分：50分）注意事项：1．本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分。

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Ⅱ卷时，将答案写在答题卡上。

写在本试卷上无效。

4．测试范围：人教版八上第五单元第一、二章。

5.难度系数：0.76．考试结束后，将本试卷和答题卡一并交回。

一、选择题：本题共15个小题，每小题1分，共15分。

每小题只有一个选项符合题目要求。

1．我国美丽富饶的南海诸岛有许多是珊瑚礁形成的。

珊瑚礁由珊瑚虫的分泌物堆积而成。

珊瑚虫属于腔肠动物，其显著特征是（）A．体内有消化腔，有口无肛门B．身体呈背腹扁平，左右对称C．体表有外骨骼包围，足分节D2．下列词语中提到的动物不属于节肢动物的是（）A．金蝉脱壳B．庄周梦蝶C．乌贼喷墨D．虾兵蟹将3．下列关于几种无脊椎动物的叙述错误的是（）A．软体动物用足运动，大多具有贝壳B．环节动物身体分节，比线形动物运动更灵活C．比较节肢动物和环节动物，前者的结构更复杂D．腔肠动物身体辐射对称，可从各方向捕获猎物、进行防御，因而比扁形动物更高等4．用吸管吸取少许墨汁，将墨汁慢慢地滴在鱼口的前方，可看到的现象是（）A．墨汁从口吸入后，从鳃盖流出B．墨汁从口吸入后，进入鱼的身体，最后可能从鱼的肛门排出C．墨汁从口吸入后，又从口里吐出D．墨汁没有进入鱼的口里5．鲫鱼游泳的动力主要来自（）A．尾部和躯干部的摆动B．尾鳍的摆动C．胸鳍和尾鳍的摆动D．所有鱼鳍的协调运动6．“天高任鸟飞”，各种姿态的鸟在蓝天中翱翔，形成一幅美丽的画卷，关于鸟类适于飞行的结构特征，叙述错误的是（）A．身体呈流线型，减少飞行中空气的阻力B．气囊可以扩大气体交换的面积C．骨骼轻、薄，有的骨中空，可以减轻体重D．胸肌特别发达，为飞行提供足够的动力7．鳖，俗名“甲鱼”，营养价值高，乃宴席上品。