华大初二升初三摸底考试题
中考生物摸底试卷(含答案)
中考生物摸底试卷（含答案）一、选择题1．用你所学的生物学知识来判断，下列说法正确的是A．人体的消化腺都能分泌消化液，消化液中都含有消化酶B．人体的生命活动主要受到神经系统的调节，但也受到激素调节的影响C．细菌和真菌对于自然界中的物质循环和能量循环起着重要作用D．如果父亲和母亲都患有某种遗传病，那么他们的子女—定患有该遗传病2．某种金合欢有大而中空的刺，蚂蚁栖居其中，并以金合欢嫩叶尖端的球状小体为食。
为探究栖居蚂蚁对金合欢生长的影响，用金合欢幼苗进行实验，研究结果如下表。
实验说明栖居蚂蚁对金合欢的生长金合欢幼苗的生长状况没有蚂蚁栖居的金合欢有蚂蚁栖居的金合欢10个月中的存活率(%）4372幼生长高度(厘米)5月25日至6月16日0→6.20→31.06月17日至8月3日 6.2→10.231.0→72.9A．有促进作用B．有抑制作用C．有利也有弊D．无任何影响3．瓣膜关闭不严会导致血液倒流，心脏内血流方向正常的是（）A．右心房→右心室→主动脉B．左心室→左心房→肺静脉C．右心室→右心房→上、下静脉D．左心房→左心室→主动脉4．下图中①③表示血管，②表示人体器官，箭头表示血流方向。
下列叙述中，正确的是（）A．若②是肺，则①中是动脉血B．若②是肺，则③中血液流向右心室C．若②是脑，则①可以表示主动脉D．若②是脑，则③中氧含量大于①5．下图是植物体的某些器官或结构示意图，下列相关叙述错误的是（）A．甲图中①②③④共同组成种子的胚B．乙图中的②将来发育成丙图中的bC．丙图中的a和b是由甲图中的①发育成的D．丁图中的结构B和C可以使根不断长长6．下表中能正确表达其左侧图所示关系的是（）甲乙丙丁A眼球壁的中膜角膜虹膜脉络膜B中枢神经系统脑脊髓神经C消化系统消化道消化器官消化腺D血细胞红细胞白细胞血小板A．A B．B C．C D．D7．回顾你所做过的生物学实验，下列说法错误的是（）A．“探究草履虫对刺激的反应”体现了生物能通过反射回应刺激B．“探究唾液对淀粉的消化作用”时，37℃是消化酶的适宜温度C．“观察人口腔上皮细胞”时，要把刮取物置于生理盐水中D．“探究酒精对水蚤心率的影响”需进行重复实验，数据取平均值8．豌豆的高茎和矮茎是一对相对性状，用纯种的高茎豌豆和矮茎豌豆杂交，子一代都是高茎豌豆，子一代种子种下去，自花传粉，获得子二代（数量足够多）。
人教版八升九语文摸底测试卷2套(带答案)
人教版八升九语文摸底测试卷（一）时间：120分钟，满分120分班级姓名得分【卷首寄语】亲爱的同学，八年级的语文学习已经结束，一年耕耘，一朝收获。
请拿起你的笔，仔细审题，认真做答，相信你会有出色的表现。
祝你旗开得胜！一、积累与运用（25分）1、根据要求填空：（每小题一分，共10分）①辛苦遭逢起一经，。
②，愁云惨淡万里凝。
③山水之乐，。
④《登飞来峰》中与“会当凌绝顶，一览众山小”有异曲同工之妙的诗句是：“，”。
⑤) 王老师退休后仍在学校心理咨询室义务“坐诊”，可用《己亥杂诗》中的“＿＿＿＿＿＿＿＿＿＿＿，＿＿＿＿＿＿＿＿＿＿＿”两句诗来称赞王老师。
⑥领导干部要实践“三个代表”，其中重要一点就是全心全意为人民服务，做到范仲淹在《岳阳楼记》中所说的“，”。
⑦韩愈在《早春呈水部张十八员外》诗中描写早春特色的诗句是：，。
(8)唐代诗人岑参在《白雪歌送武判官归京》诗中描写塞外奇特风光，被誉为“千古名句的是：________________________，_____________________。
⑨请写出2则有关母爱的名人名言，并写出作者或出处。
⑩请围绕某个春天节气，搜集当地的有关谚语。
（2个）。
2.选出加点字注音完全正确的一组（3分）（）A.清冽（ｌｉè）摇缀（ｚｕì）俶尔（ｃｈū）佁然（ｙí）B.三春晖（ｈｕī）谗言（ｃｈáｎ）伛偻（ｙǔ）林霏（ｆēｉ）C.啮齿类（ｎｉè）滑稽（ｊí）模糊（ｍú）馄饨（ｔùｎ）D.解剖（ｐāｏ）描摹（ｍó）戳痛（ｃｈｕō）哂笑（ｓｈěｎ）3、下列各句，没有语病的一项是（）（3分）A.校门口对面又开了一家卖饮料和汽水的小店。
B.牧童牵着牛在吃草。
C.李明同学很勤奋，也很智慧，他的数学成绩在班里遥遥领先。
D.一个人知识的多寡，成就的大小，关键在于勤的程度。
4．用一句话概括下面一段话的主要信息。
2024届九年级下学期开学摸底考试卷(湖北省卷)(考试版)
2024届九年级下学期开学摸底考试卷（湖北省卷）语文（考试时间：150分钟试卷满分：120分）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准考证号、姓名、考场号和座位号填写在答题卡上。
用2B铅笔在“考场号”和“座位号”栏相应位置填涂自己的考场号和座位号。
将条形码粘贴在答题卡“条形码粘贴处”。
2．作答选择题时，选出每小题答案后，用 2B 铅笔把答题卡上对应题目选项的答案信息点涂黑；如需改动，用橡皮擦干净后，再选涂其他答案，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，答案必须写在答题卡各题目指定区域内相应位置上；如需改动，先划掉原来的答案，然后再写上新的答案；不准使用铅笔和涂改液。
不按以上要求作答的答案无效。
4．考试结束后，将本试卷和答题卡一并交回。
一、阅读下面材料，完成1-6题。
（共20分）阅读下面的材料，完成下面小题。
熟读唐诗三百首，不会作诗也会吟【A】诵读唐诗是一代又一代中国人的个体记忆和集体记忆【B】这些诗句【C】在岁月流转中【D】入目浸心，在血脉里奔涌．．。
①这些诗句，是登高望远时“会当凌绝顶，一览众山小”的______，是举杯言欢时“人生得意须尽欢，莫使金樽空对月”的______，是笑看前程时“大鹏一日同风起，扶摇直上九万里”的______，是历经风雨后“两岸猿声啼不住，轻舟已过万重山”的______。
初读不识诗中意，再读已是诗中人。
②有网友评论，当听到李白对着高适念出那句“银鞍照白马，飒沓如流星”时，感觉心灵一下被击中了，“欲语泪先流”。
是的，诗歌从来都不仅仅是语文课堂上的刻板背诵，也不是浮于表面的华丽辞藻，而是个人沉浮、时代变幻，是世事起落、山河大地。
少年的李白和高适，相信心中的那团锦绣，终有脱口而出之日，立志要横刀立马、报效国家。
③今天的我们，又何尝不是一样的热血、一样的豪情？中华文化的精髓不仅跨越时代，折射到每个平凡人的生活日常，还会呈现在盛唐风韵、诗词歌赋。
八年级升九年级-进阶训练与模拟,带答案
主 题 进阶训练与模拟 教学内容1．综合复习，模拟测试．（此环节设计时间在10－15分钟）案例：如图，ABCD 是正方形，点G 是线段BC 上任意一点（不与点B 、C 重合），DE 垂直于直线AG 于E ，BF ∥DE ，交AG 于F . （1）求证：AF —BF ＝EF ；（2）当点G 在BC 延长线上时（备用图一），作出对应图形，问：线段AF 、BF 、EF 之间有什么关系（只写结论，不要求证明）？（3）当点G 在CB 延长线上时（备用图二），作出对应图形，问：线段AF 、BF 、EF 之间又有什么关系（只写结论，不要求证明）？参考答案：（1）在△ABF 和△DAE 中，∵AB ＝AD ，∠ABF ＝∠DAE ，∠BAF ＝∠ADE ， ∴△ABF ≌△DAE ， ∴AE ＝BF ∴AF —BF ＝AF —AE ＝EF .（2）BF —AF ＝EF ； （3）BF ＋AF ＝EFEFBDACGBDACGBDACG（此环节设计时间在20－30分钟）例题1：已知：如图，在正方形ABCD 中，AB =4，E 为边BC 延长线上的一点，联结DE ，BF ⊥DE ，垂足为点F ，BF 与边CD 相交于点G ，联结EG ；设CE =x ， （1）求∠CEG 的度数；（2）当BG =25时，求△AEG 的面积；（3）如果AM ⊥BF ，AM 与BC 相交于点M ，四边形AMCD 的面积为y ，求y 关于x 的函数解析式，并写出它的定义域．参考答案：（1）在正方形ABCD 中，BC = CD ，∠BCD =∠DCE = 90°．∵ BF ⊥DE ，∴ ∠GFD = 90°．即得 ∠BGC =∠DEC ，∠GAC =∠EDC ．在△BCG 和△DCE 中，,,,GBC EDC BC DC BGC EDC ∠=∠⎧⎪=⎨⎪∠=∠⎩∴ △BCG ≌△DCE （A ．S ．A ）．∴ GC = EC ． 即得 ∠CEG = 45°．（2）在Rt △BCG 中，BC = 4，25BG =， 利用勾股定理，得 CG = 2．∴ CE = 2，DG = 2，即得 BE = 6．EF BDACGEFB DACGM GFBC ADE∴ AEG ABE ADG DEG ABED S S S S S ∆∆∆∆=---四边形11114646424222222=+⨯-⨯⨯-⨯⨯-⨯⨯（）= 2． （3）由 AM ⊥BF ，BF ⊥DE ，易得 AM // DE ．于是，由 AD // BC ，可知四边形AMED 是平行四边形． ∴ AD = ME = 4．由 CE = x ，得 MC = 4 -x ．∴ 1144421622AMCD y S AD MC CD x x ==+⋅=+-⨯=-+梯形（）（）．即 216y x =-+． 定义域为 04x <≤．例题2：如图，点A （m ，6），和点B （6，2），（点B 在点A 的右侧）在反比例函数的图像上，直线BC ∥x 轴，与y 轴交于点C ．（1）求m 的值及直线AC 的解析式；（2）如果点D 在x 轴的正半轴上，点E 在反比例函数的图像上，当四边形AEDC 是平行四边形时，求边CD 的长．参考答案：（1）m ＝2，直线AC 的解析式为y ＝2x +2；（2）作AF ⊥y 轴，EG ⊥x 轴，可证△ACF ≌△DEG ，从而EG ＝4，DG ＝2，代入反比例函数E （3，4），∴OD ＝1，∴5CD =此环节设计时间在80分钟左右（60分钟练习＋20分钟互动讲解）。
8年级升9年级摸底测试英语
八年级升九年级摸底测试欢迎你参加这次测试，祝你取得好成绩！姓名:Choose the best answer .She saw English film last Sunday . But she cannot remember name of film .A. an ; a ; aB. a ; the ; aC. an ; the ; aD. an ; the ; theThe man on watch didn’t see the iceberg until it was too late .A. at the frontB. in the frontC. at frontD. in frontThe room cool in summer and warm in winter .A. feelsB. is feltC. feels to beD. is felt to beIt is polite Miss Yang to carry these books .A. of you helpingB. for you to helpC. of you to helpD. for you helping Mary asked her mother .A. what to do itB. how to doC. where to liveD. where to live in The soldiers are always ready the old people if they any trouble .A. help ; haveB. to help ; haveC. helped ; will haveD. helping ; hasThe weather yesterday was today .A. not so cold as isB. not so colder as it isC. not so cold as it wasD. not so cold as it isHe said that he saw Mr. Brown into the building and go .A. going ; to upstairsB. go ; upstairsC. went ; to upstairsD. goes ; upstairsTake a plane , you’ll be able to get to Shanghai this afternoon .A. andB. orC. becauseD. sothe boy is to learn to talk !A. How slowB. How slowlyC. What a slowD. What a slowlyThey improved the software it easier for people computers .A. make , useB. to make , usingC. to make , to useD. to make , useLi Lei ran me quickly , he first the gate .A. passed , passedB. past , pastC. passed , pastD. past , passed Jones won the gold medal in the race in the 27th Olympic Games .A. women’s 100-metresB. women’s 100-metreC. women’s 100 metresD. women 100 metrePlease the other exercises after you finish the exercise .A. go on to doB. go on doingC. go on withD. go onWe were reading in the reading-room suddenly the lights went out .A. whileB. whenC. as soon asD. if— Lucy’s phone number is 5-6-3-2-6-4 , please .— on a piece of paper .A. Write down themB. Write them downC. Write it downD. Write downitTom Peter may go with you because one of them must stay at home .A. Not only ; but alsoB. Neither ; norC. Both ; andD. Either ; or He took off his shoes and them on the floor .A. broughtB. tookC. fellD. droppedstudents from the universities went to the west of China after they graduated （毕业）.A. Thousand ofB. Thousands ofC. About ten hundredsD. Hundred of he read the book , he got in it .A. The more ; the more interestingB. The less ; the more interestingC. The more ; the more interestedD. More ; more interestedCloze text .Martin Henfield talks about some of his experiences（经历）as a twin : When we were small my mother dressed us 41 the same clothes . That was bad enough and we didn’t like it . But when we went on our first camping（野营）trip with the scouts（童子军）, it was even 42 . We were only ten years old , and while 43 went into their sleeping bags for the night , we were not happy to snuggle（紧偎）inside a double sleeping bag my mother made for us .At school our classmates 44 us Henfield One and Henfield Two , so people couldn’t even see our difference according to（根据）our initials（姓名的开头字母）because 45 of us were M. O. It was only when I went to college and began to have my own friends that I started to feel my own freedom of identity（身份）.Before I went to college , during my last secondary school 46 , I got a job on a building site（地点）. My twin brother , Mike Henfield , didn’t work . He was resting . One day I said to the foreman（工头）, “ Can I have a week off ? ”“ Certainly , ” he said , “ but you won’t have the job when you 47 back . ”I didn’t want to 48 the job . So on Monday morning , Mike went down in my jeans , jacket and hat and he worked 49 me for one week . None of them knew the difference .Now I am growing old and I feel very different 50 my twin brother . And he’ll tell you the same . We have really worked towards that for forty years .41. A. in B. for C. on D. with42. A. bad B. worse C. good D. best43. A. all boys B. another boy C. all the other boys D. all the boys44. A. called B. asked C. told D. knew45. A. every B. each C. both D. all46. A. holidays B. holiday C. week D. weekend47. A. get B. will get C. got D. are getting48. A. loose B. lost C. missing D. lose49. A. instead B. to C. instead of D. of50. A. in B. from C. with D. asIV. ReadingALearn about the emperor penguin’s lifeIt’s already cold in Antarctica（南极洲）by March . Remember , seasons in the southern half of the world are opposite to those in the north . Nearly all animalsleave there in the winter but not the emperors .（皇帝）In April , emperor penguins start to travel thousands of miles inland to give birth to their baby .The mother lays her egg during the Antarctic winter months of May and June . Hatching（孵卵）should be the mother’s work , right ? But no ! Penguin mums leave their eggs on the father’s feet and go far away to get food from the sea . It’s the father’s job to hatch the egg . It takes around 65 days !After about two months , the mother returns with food for the hatched baby . Now it’s the father’s turn to pig out !By December , the weather becomes warmer and the food gets richer . Baby penguins have now grown old enough to fish for their own food in the sea !51. How many months does the winter in Antarctica last ?A. 2 months .B. 3 months .C. 4 months .D. 5 months .52. Why do emperor penguins travel thousands of miles in land in April ?A. Because they want to have fun .B. Because they want to get food for winter .C. Because they give birth to their babies there .D. Because they want to go to the north .53. What’s the mother penguin’s job ?A. To lay eggs .B. To hatch eggs .C. To go far away to get food from the sea .D. Both A and C54. How long does it take to hatch the eggs ?A. 30 days .B. 50 days .C. 65 days .D. 100 days .55. The passage mainly tells us .A. how emperor penguins live through yearB. what emperor penguins look like and what they like to doC. when and where people can find emperor penguinsD. how emperor penguins live in winterBWhy are hot dogs so popular in US ?Put a sausage（香肠）in a bun（面包）and what have you got ? A hot dog of course !Americans eat a lot of hot dogs . Around sever billion hot dogs will be eaten in July alone this year . People living in the city of Los Angeles eat more hot dogs than people in any other US city .Some people like hot dogs better than hamburgers because they’re easier to eat . This is because the bun is thin and long and the sausage cannot fall out easily . Americans like to eat hot dogs at baseball matches and other sporting events（体育赛事）. But they also buy them in the street and eat them as they walk along !Most Americans like mustard（芥末）on their hot dogs . America’s President （总统）, George W. Bush’s favourite topping（蛋糕上的奶油等）is mustard with relish （调味品）. Kids like ketchup（番茄酱）much better ! Lemonade and iced tea are the best drinks to have with hot dogs .But why are they called this ? Many people say “ hot dog ” was first used in 1901 . A cartoonist（漫画家）called Tad Dorgan was at a baseball game in New York .He heard food sellers shouting “ Get your sausages while they’re red hot ” , Dorgan then drew a cartoon using the word “ hot dog ” . Lots of Americans saw the cartoon and started using the name !56. Where can you find Americans eating hot dogs ?A. At a concert .B. At baseball matches .C. In the street .D. Both B and C57. Which of the following is the city where people eat the most hot dogs in the US ?A. New York .B. Boston .C. Los Angeles .D. Chicago58. What do people like to drink with hot dogs ?A. cola and soda .B. Milk and coffee .C. Tea and water .D. Lemonade and iced tea .59. The word “ hot dog ” was first used .A. to remember a cartoonistB. as the nickname of a baseball playerC. to sell a kind of red hot sausageD. in a cartoon60. The passage mainly tells us .A. how delicious hot dogs are and how to make themB. why Americans like hot dogs better than hamburgersC. how popular hot dogs are and how the name came into beingD. when and where Americans eat this kind of fast foodCIt is raining money !Imagine this . A big bag full of money falls from the sky and lands right next to you . What would you do with the money ?This is the question faced by British seven-year-old Damian in the film “ Millions .”Damian and his brother moved to a new place with their dad , after their mother passed away .Damian tries to make new friends , but he feels lonely .When Damian is watching some trains one day , a bag full of money falls out of the sky and lands at Damian’s feet . The bag has 265,000 pounds in it !He can’t wait to tell his brother , nine-year-old Anthony . But Anthony doesn’t want to tell their dad .Soon the money brings trouble . They have different ideas about what to do with it . Damian is kind-hearted . He wants to give money away to the poor . But Anthony wants to use it all to make more money ! As a kid , he also wants to buy a lot of fun toys !But they have only one week to spend the money before Britain starts using euros （欧元）!They also find out where the money came from ! The terrible owner wants it back !At the same time , their father works hard to give them a bigger house .What will they do with the money ? Watch the film to find out . Together with the two kids , you’ll learn that true wealth（财富）has nothing to do with money !61. Who found the bag full of money which falls from the sky ?A. Two real British boys .B. Two boys in a film .C. The father of two boys .D. A boy in a film .62. What does Damian sometimes do when he feels lonely ?A. Stays at home and watches TV.B. Plays with a lot of friends .C. Goes out and watches trains .D. We don’t know .63. What does Damian’s brother want to do with the money ?A. Give the money to the poor .B. Make more money with all of it .C. Buy a lot of toys .D. Both B and C .64. How much time do they have to spend the money ?A. A long time .B. Only one week .C. Before the owner find them .D. Before their father knows .65. We can tell from the story that .A. money is importantB. we should tell everything to our fatherC. money won’t bring true wealthD. we should go and watch trains to get money第II卷（非选择题部分）V. Complete the dialogue with complete sentences .（5分）A：What were you doing at eight last night ?B： 66A：Were you seeing Titanic ?B：Yes , I was .A： 67B：I was seeing it with my parents .A： 68B：The story is so sad . Titanic sank into the sea at last .A： 69B：Because it hit an iceberg .A：Why didn’t the ship try to avoid（避开）the iceberg ?B：They tried to , but it was too late .A： 70B：I think Miss Evans is the greatest person in this story . She lost her life for the children .VI. Fill in the blanks with the proper form of the given words .（5分）71. They both lost themselves in （listen）to the music .72. Is it （wet）today than it was yesterday ?73. The women over there were talking （noise）.74. Excuse me , can I have a talk with one of the （win）of the match .75. His sister isn’t （marry）and has no children .76. She said it was （terrible）cold on the night of November the 1st .77. Mabel is always （worry）about her Chinese .78. They can’t find their way to the station , they need （look）at a map .79. We （stay）here until it stops raining .80. The ship Californian arrived so late that it couldn’t save so many people’s （life）.VII. Gap-filling（5分）The Shutes lived in America . Mrs. Shute w 81 a housewife . She had a c82 monkey for many y 83 . The monkey could wash dishes . He washed the dishesf 84 the woman every day . He liked to wash dishes . He spent hour after hour w85 dishes . None of them was b 86 but sometimes he washed the dishes over and over . I 87 Mrs. Shute tried to stop him , he then got a 88 . He began to throw dishes in a 89 directions（方向）. But this didn’t h 90 very often .VIII. Answer the questions according to the given pictures（10 分）91. What was the weather like ?92. Where did the two girls go ?93. What did they see when they walked across the bridge ?94. The boy wasn’t in danger , was he ?95. What did they do then ?IX. Translation :（10分）96. 我弟弟太小了，不会照料自己。
中考生物摸底试卷含解析
中考生物摸底试卷含解析一、选择题1．用显微镜观察时，要将如图中视野甲转换为视野乙，下列操作合理的是（）A．首先调节细准焦螺旋B．首先将镜筒缓缓下降到最低处C．将低倍物镜转换为高倍物镜D．移动玻片标本2．某老师最近患了咽炎．医生使用抗生素在其臀部肌肉注射治疗，药物在作用于咽部之前，最先到达心脏的（）A．左心房B．左心室C．右心房D．右心室3．某种金合欢有大而中空的刺，蚂蚁栖居其中，并以金合欢嫩叶尖端的球状小体为食。
为探究栖居蚂蚁对金合欢生长的影响，用金合欢幼苗进行实验，研究结果如下表。
实验说明栖居蚂蚁对金合欢的生长金合欢幼苗的生长状况没有蚂蚁栖居的金合欢有蚂蚁栖居的金合欢10个月中的存活率(%）4372幼生长高度(厘米)5月25日至6月16日0→6.20→31.06月17日至8月3日 6.2→10.231.0→72.9A．有促进作用B．有抑制作用C．有利也有弊D．无任何影响4．2018年11月，三江源国家公园管理局、世界自然基金会（WWF）联合在三江源国家公园调查水鸟时，偶然拍摄到一只非常稀有的黑狼。
有关专家称，该黑狼的父母可能都是含有相同黑色隐性基因的灰狼。
如果用H和h表示控制狼毛色的一对基因，根据该专家的推测，该黑狼毛色的遗传过程可表示为（）A．B．C．D．5．用四个培养皿在表中所示条件下培养大肠杆菌（除研究因素外，其它条件都相同）,培养36小时后获得如下结果，能说明维生素可以促进大肠杆菌繁殖的是（）培养皿培养基温度培养皿上的菌落数I琼脂、糖类30℃35Ⅱ琼脂、糖类、维生素30℃250Ⅲ琼脂、维生素30℃0Ⅳ琼脂、糖类、维生素25℃150A．ⅡB．Ⅱ和ⅢC．I和ⅡD．Ⅱ和Ⅳ6．将一株绿色植物放入密闭瓶中，连通二氧化碳浓度测定仪，将其置于室外培养，测定晴朗的一天内瓶中二氧化碳浓度变化，绘制成如下图所示的曲线。
下列分析正确的是（）A．ab段植物只进行呼吸作用，不进行光合作用B．在c点植物的光合作用和呼吸作用强度相等C．在bd段植物进行的生理作用有光合作用和呼吸作用两种D．这株绿色植物在一天内积累了有机物，在d点时有机物总量最多7．18世纪的英国曼彻斯特地区山清水秀，这里的桦尺蠖大多数是浅色的，少数是深色的。
2024届九年级下学期开学摸底考试卷(武汉专用)(考试版)
2024届九年级下学期开学摸底考试卷（武汉专用）语文（考试时间：150分钟试卷满分：120分）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准考证号、姓名、考场号和座位号填写在答题卡上。
用2B铅笔在“考场号”和“座位号”栏相应位置填涂自己的考场号和座位号。
将条形码粘贴在答题卡“条形码粘贴处”。
2．作答选择题时，选出每小题答案后，用 2B 铅笔把答题卡上对应题目选项的答案信息点涂黑；如需改动，用橡皮擦干净后，再选涂其他答案，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，答案必须写在答题卡各题目指定区域内相应位置上；如需改动，先划掉原来的答案，然后再写上新的答案；不准使用铅笔和涂改液。
不按以上要求作答的答案无效。
4．考试结束后，将本试卷和答题卡一并交回。
一、阅读（共55分）阅读下面的实用类文本，完成下面小题。
（3小题，共10分）植物也“聊天”①遇到家族亲属，会亲切地打个招呼，还会协调关系避免“窝里斗”；遇到竞争对手，就迅速地威胁警告，并释放毒素抑制对方生长。
②你能想象吗？做出这些反应的是平时看上去仿佛很安静的植物。
在看不见的地下，植物也“聊天”，它们的世界很“热闹”。
③研究发现，乡邻植物可以通过释放化学物质，进行对外交流。
这种由化学物质主导的对外交流，可以改变植物生长的微环境，调节养分供给，甚至影响产量。
以中国南方经常相邻种植的竟然促进相邻的花生和木薯为例，我们来看它们是怎么交流的。
④木薯先从根部向土壤中释放出氰化物，近的花生接收到这些信号后，就释放相应的乙烯。
在乙烯影响下，花生会主动缩减植株的繁茂程度，优先保证果实的养分供给。
同时，乙烯还能聚集土壤中的有益微生物到花生根部，提高花生对氮、磷等有效养分的吸收率，进而提高花生果实的饱满程度和产量。
⑤此外，植物还可以对外发送物理信号（声信号、点信号等）进行交流。
澳大利亚生物学家的实验证明将罗勒栽种到胡椒附近，胡椒的长势就会变得更好。
九年级摸底考试生物试卷
2023-2024学年度第二学期九年级摸底考试生物试卷试卷总分：50分考试时间：120分钟一、单项选择题（本大题包括20道题目，每小题1.5分，共30分）1.下列不属于生命现象的是（）A.蜻蜓点水B.春暖花开C.角马迁徒D.秋风送爽2.近日，西北农林科技大学团队联合青海省西宁市动物疫病预防控制中心首次采用体细胞克隆技术培育出“克隆藏羊”，体细胞中控制生物发育和遗传的结构是（）A.细胞膜B.细胞核C.细胞壁D.细胞质3.我国天舟六号货运飞船携带的神秘生物材料——人体干细胞（一种具有分裂、分化能力的体细胞）在空间站用于实验，其中一部分将被诱导为生殖细胞。
该过程中染色体数会（）A.保持不变B.增加一倍C.减少一半D.增加两倍4.某同学将一株质量为20克的番茄幼苗栽种在光照等适宜生长的环境中，一段时间后植株达到400克。
其增加的质量不可能来自（）A.二氧化碳B.水C. 土壤中的有机物D.上壤中的无机盐5.如图为大豆种子的结构示意图，下列叙述错误的是（）A.胚是新植株的幼体，由图中的①、②、③、④组成B.④为子叶，贮藏着大量的营养C.种子萌发时，③首先突破种皮，发育成根D.种子萌发需要的外界条件包括一定的水、充足的阳光和适宜的温度6.胡萝卜中富含胡萝卜素.在人体内能转变成维生素A，经常食用可预防（）A.夜盲症B.坏血病C.呆小症D.佝偻病7.当考前紧张时.我们可以深呼吸来缓解情绪吸气时，下列说法正确的是（）A.膈肌舒张B.肋骨间肌肉收缩C.胸廓容积缩小D.膈顶部上升8.小明去医院做血常规化验时，医生会从他的手指上取一滴血，然后做成涂片置于显微镜下观察。
在这张涂片中，医生可以看到的血细胞有（）A.白细胞B.血小板C.红细胞D.以上均有9.“红灯停，绿灯行”是最基本的交通规则，这一反射的结构基础是（）A.大脑B.神经元C.神经系统D.反射弧10.当人体的血液流经肾脏后，所含成分眼明显的变化是（）A.尿素减少B.尿素增加C.氧气增加D.二氧化碳减少11.生物学家发现了一种单体最大长度可达到2厘米的华丽硫珠菌，是有史以来发现的最大的细菌。