广西南宁市金伦中学、华侨、新桥、罗圩中学2019-2020学年高一上学期入口考试(10月月考)英语试题 含答案
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2019—2020学年度上学期“4+ N”高中联合体期中联考试卷高一生物(满分100分,考试时间90分钟)考生注意:1.本试卷分第I卷(选择题)和第Ⅱ卷(非选择题)。
满分100分,考试时间90分钟。
考试结束后,请将答题卡交回。
2.考生作答时,请将答案答在答题卡上。
第I卷每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑;第Ⅱ卷请用直径0.5毫米黑色墨水签字笔直接在答题卡上各题的相应位置内作答。
第Ⅰ卷选择题一、选择题。
(本题共35小题,在每小题给出的四个选项中,只有一项是最符合题目要求的。
)1.生命系统具有一定的层次,下列有关生命系统所属层次的叙述正确的是A. 一个肺炎双球菌既属于细胞层次,又属于个体层次B. 一个湖泊中的所有鱼属于种群C. 一片水稻田中的所有生物属于生态系统D. 一颗枯木上的所有植物和动物属于群落2. 下列四组生物中,结构最相似的是A. 变形虫、水绵、蓝藻B. 念珠藻、酵母菌、蓝球藻C. 念珠藻、颤藻、蓝球藻D. 烟草、草履虫、烟草花叶病毒3. 病毒、大肠杆菌、青霉菌、颤藻和人体等的统一性表现在①都含有DNA ②都营异养生活③都有核糖体④都有遗传物质A.④B.①④C.②③④D.①②③④4. 下列对施莱登和施旺的“细胞学说”理解合理的是①揭示了动植物体结构的统一性②细胞是一个相对独立的有机体③一切生物都是由细胞和细胞产物构成的④提出了新细胞由细胞分裂产生A.①②B.①④C.②③D.③④5. 下列关于细胞膜控制物质进出这一功能的叙述中,正确的是A.对细胞有害的物质不能进入细胞B.细胞膜对物质进出的控制作用是相对的C.细胞内合成的大分子物质不会被排放到细胞外D.细胞代谢过程中产生的尿素不会排出细胞6. 下列有关生物学实验的叙述,正确的是A. 在使用显微镜观察细胞的实验中,若在50×的视野中均匀分布有大小一致的20个细胞,则换用100×后,视野中的细胞数目是10个B. 用显微镜观察细胞,我们会发现原核细胞比真核细胞结构复杂C. 显微镜所成的是倒像,“p”在显微镜下应该是“d”D. 在显微镜下观察透明材料时,应该增强亮度,用较大的光圈7. 实验中用同一显微镜观察了同一装片4次,得到清晰的四个物像如下图。
2020-2021学年广西壮族自治区南宁市金伦中学高一生物上学期期末试题含解析一、选择题(本题共40小题,每小题1.5分。
在每小题给出的四个选项中,只有一项是符合题目要求的。
)1. 右图为某高等哺乳动物的一个细胞示意图,该细胞属于()A.卵原细胞 B.第一极体C.初级卵母细胞 D.卵细胞参考答案:B2. 下列过程会使细胞中ADP的含量增加的是①肾小管上皮细胞使原尿中的葡萄糖进入血液②红细胞中的血红蛋白变为氧合血红蛋白③葡萄糖进入红细胞④K+进入小肠绒毛上皮细胞A.①③B.②④C.②③D.①④参考答案:D3. 常温下进行下列处理,没有显色反应的是( )A.用吡罗红处理RNA B.用碘液处理淀粉溶液C.在豆浆中加入双缩脲试剂D.在葡萄糖溶液中加入斐林试剂参考答案:D4. 下列各种生物中关于碱基、五碳糖、核苷酸种类的描述,正确的是()参考答案:B5. 某二十二肽被水解成1个四肽,2个三肽,2个六肽,则这些短肽的氨基总数的最小值及肽键总数依次是()A.6,18 B.5,18 C.5,17 D.6,17参考答案:C.由题干“某二十二肽被水解成1个四肽,2个三肽,2个六肽”,则①这些短肽的肽链总数=1+2+2=5条,含有的氨基总数的最小值=肽链数=5个;②1个四肽中共有3个肽键,2个三肽中共有肽键2×2=4个,2个六肽中共有肽键5×2=10个,所以这些短肽含有的肽键总数=3+4+10=17个.6. 下列描述中,哪项是淀粉、纤维素和糖原的共同特征()A. 基本组成单位都是六碳糖B.都含有C、H、O、N四种元素C.基本组成单位都是五碳糖D. 都是细胞内储存能量的主要物质参考答案:A7. 蜜蜂种群由蜂王、工蜂和雄蜂组成,下图显示了蜜蜂的性别决定过程,据图判断,蜜蜂的性别取决于( )A.XY性染色体B.ZW性染色体C.性染色体数目D.染色体数目参考答案:D分析题图可知,卵子受精后形成的合子发育成的蜜蜂为雌性,染色体数目为32条;卵细胞没有和精子受精直接发育成的个体为雄性,染色体数目为16条。
2019-2020学年广西南宁市马山县金伦中学4+N高中联合体联考高一(上)期中英语试卷一、阅读理解(本大题共15小题,共30.0分)AMr.Brown worked in a factory of a small town.He had been there for twenty years before one day he was sent to the capital for important business.He was quite excited because he had never been there before.Before he set off,he asked his wife and three daughters if they wanted him to buy something for them in London.Mrs.Brown began to think it over and then she said she wished her husband would be able to buy a nice umbrella for her,and so did their three daughters.As he was afraid he would forget it,he drew an umbrella on his hand.To his regret,he lost it at the station.On the train Mr.Brown sat opposite to an old woman.The woman's umbrella was so nice that he carefully looked at it and said to himself not to forget to buy a few umbrellas like it.When the train arrived at the station in London,he said good-bye to the old woman,took his bag and her umbrella and was going to get off."Wait a minute,sir," shouted the old woman."That's my umbrella!"Now Mr.Brown noticed that he had taken her umbrella.His face turned red at once and said in a hurry,"Oh,I'm very sorry,Madam! I didn't mean it!"Seven days later Mr.Brown left the capital.To his surprise,he met the old woman and sat opposite to her again.Looking at the four umbrellas,the old woman was satisfied with herself."It seems that I was luckier than the other four women." She thought.1.The underlined word "it" in the first paragraph refers to ______ .A. his ticketB. his bagC. his umbrellaD. his drawing2.Why did Mr.Brown take the woman's umbrella?______A. Because it was much like his own umbrella.B. Because he was lost in thought.C. Because he thought the woman would not notice it.D. Because the woman misplaced it beside Mr.Brown.3.When looking at Mr.Brown with four umbrellas,the woman felt ______ .A. surprisedB. fortunateC. angryD. sad4.How did Mr.Brown get the four umbrellas?______A. He picked them on the train.B. He brought them from his small town.C. He bought them in London.D. He stole them from four women.BWe'd Love To Hear From You!Thank you for your interest in KidsHealth.We welcome any comment you might have about the content(内容)and design of our website.We love to hear your suggestions!Sorry,We Can't Reply.KidsHealth can provide you with lots of general information to help you better understandhealth matters,but we regret that we can't send you a personal reply to any question.Although we cannot reply personally,we do read all of our messages and take themseriously.What If You're A Kid Or A Teen And Have A Question?The first place to start is with your parents-who can either talk to you about your concern orhelp you find someone who can answer your question.Your doctor,school nurse or teacher,or other adult relatives also can guide you to find the help you need.Tell us what you think:〇Kids Mailbox - Send us your comments about our Kids section.〇Teens Mailbox - Send us your comments about our Teens section.〇Parents Mailbox - Send us your comments about our Parents section.〇General Comments - Send us your general comments,praise,or complaints about our site.Also use this mailbox for reporting broken links or to communicate personal concerns.If you are asking for reprint guidelines,please email our PR department.5.KidsHealth is most probably the name of a ______ .A. websiteB. magazineC. NewspaperD. TV station6.KidsHealth does all the following EXCEPT ______ .A. offering information on healthB. reading all the readers' messagesC. providing reprint guidelinesD. answering all questions personally7.Who should you turn to first when you have a health problem?______A. KidsHealth.B. Your teacher.C. Your parent.D. Your doctor.8.If you are not satisfied with the service of KidsHealth,you should write to ______ .A. Kids MailboxB. Parents MailboxC. Teens MailboxD. General CommentsCDear editor,When I was in primary school,sometimes I would meet a girl of the same age as me.Lisa was never active,but she was always very sweet and nice.In the 5th grade she came to my class.She was absent(缺席) a lot,and one day I had the courage to ask why.She told me she was sick,and she explained she wore a wig(假发)because her medicine made her lose her hair.We left it at that.Anytime Lisa came to class-seldom-I would hang around with her on the playground.I was laughed at by my friends for this because they thought I was ignoring(忽略)them for Lisa.My family education taught me to be nice,and I felt Lisa's needs were much more important than others I knew.It had been months since Lisa was in our class,and one day our teacher was crying.She explained Lisa died the day before and would no longer be our classmate.She told us Lisa had fought with cancer for years.I was shocked.Lisa never spoke of her illness as if it could kill her.Well,all these years I have kept Lisa in my mind and heart.When I go through the important events in my life,I think of Lisa.I've had a strong wish recently to find her mother and father.I'd like to tell them that though they never met me,their daughter had a sweet effect on my life.I have no idea what herparents' first names are.I write to your column (栏目)and hope you can point me in the right direction.Lisa was such a lovely girl.Maybe her parents would be comforted by the fact that after all these years they are not the only ones who remember her.Sincerely yours,Jennifer Blues9.The underlined sentence in Para 2 probably means ______ .A. we kept on talking about her illness laterB. we discussed the topic and then left togetherC. we just stopped talking about her illnessD. we went away after talking about her illness10.Why was the author being laughed at?______A. Because she wore a wig to school.B. Because she always played with Lisa.C. Because she cried in the classroom.D. Because she lost her friends because of Lisa.11.What did the author learn from Lisa?______A. To face challenges in life bravely.B. To be nice to everyone everywhere.C. To keep your illness a secret.D. To put others' needs above yours.12.The author wrote this passage mainly to ______ .A. remember a true friendB. tell her experience of fighting cancerC. show her concern for a friendD. ask for help to find a friend's parentsDMy mother loves flowers.As soon as warm weather comes around,you will find her planting,watering and weeding over everything.For many years we lived next door to each other,and she spent as much time in my garden as she did in her own.After the flowers became plentiful each summer,she would cut colorful bouquets(花束)to enjoy inside the house-both hers and mine.I would often come home from work and find a beautiful arrangement(布置)of fresh flowers on my coffee table.Shortly before Christmas one year,a local flower shop offered a bouquet-a-month special.It seemed to be a great way to thank her for all of the flowers she had given me through the years.After the holidays,in early January,I drove her to the flower shop to pick up her first month's bouquet.The small fresh colorful bouquet would hardly fill a small vase(花瓶).I was so embarrassed(尴尬的).However,after we returned home,she began to arrange the flowers she had received."Mom,I'm sorry," I told her."I can't believe how skimpy that bouquet is." She looked at me and smiled."It's okay," she said."It allows me to better enjoy the beauty of each one."Mom's words helped me to realize something bigger and more important-when we have too many good things,we often fail to enjoy the beauty of each one.Thanks,Mom,for helping me understand that less is sometimes more.13.The author bought her mother flowers to ______ .A. celebrate the coming ChristmasB. express thanks for all her mother's doneC. bring more flowers to her mother's gardenD. arrange her mother's new house14.The underlined word "skimpy" in Para. 4 means ______ .A. smallB. colorfulC. cheapD. beautiful15.What can we infer from the passage?______A. The author couldn't afford a big bouquet.B. The mother was happy when receiving the bouquet.C. The author would be blamed by her mother.D. The mother would send back the bouquet to the flower shop.二、阅读七选五(本大题共5小题,共10.0分)Your first year of high school is here,but you don't know what you'll do! So you'll feel nervous about it.(1) Here are some ideas that can help you.●Make a lot of friends.Friends are people you can depend on and trust.They'll help you in your hour of need.So,from the faces you see every day,find those who can be your true friends,and you must defend (保卫)your friendship.(2) Knowing new people is one of the most pleasant things to do in high school.●Don't break sc hool rules.For example,don't be late for class or don't make noise in class.(3) This is because fighting could lead to trouble.● (4) Teachers really hate it if you don't prepare well.So you should have all your school things in your schoolbag.You can make a mental list of everything you need to have when you leave your classroom so that you won't forget anything next school day.●Learn in a smarter way.(5) Go over your class notes once a week.Finish your homework on time.Especially,it's better to develop the habit of asking your teachers or classmates for help when you have problems with your study.All these methods will help you study better! By using the above ideas,you'll have a wonderful high school life!A.Be prepared all the time.B.Most importantly,don't get into fights.C.Don't be afraid to get extra help after school.D.For example,pay close attention during the class.E.Actively take part in after-class activities in school.F.To avoid this,you should get used to your high school life soon.G.However,don't ignore those who you've met but don't know well.16. A. A B. B C. C D. D E.E F.F G. G17. A. A B. B C. C D. D E.E F.F G. G18. A. A B. B C. C D. D E.E F.F G. G19. A. A B. B C. C D. D E.E F.F G. G20. A. A B. B C. C D. D E.E F.F G. G三、完形填空(本大题共20小题,共30.0分)I take the train into work every morning from a train station near my house.I can get to the station quite (21)because there's a short cut (捷径)to the station.But in the summer,it can get quite smelly because of all the (22).So I always try to (23)through it.Today I was trying to do so as usual (24)something made me stop for a moment.I saw the most beautiful(25)by an old woman walking in front of me with the help of a white (26).She was short and (27)and had white hair.She was walking (28)as each step took some effort (艰难的尝试).I hadn't specially noticed her (29),until she stopped near a rubbish bin (垃圾箱).She slowly placed her walking stick (30)the rubbish bin.Then she leaned(斜倚着)on it with her right hand and (31) the rubbish.She clearly found it (32)and it took her a while.She (33)some rubbish with her left hand and slowly straightened herself up again.All the while she used the rubbish bin to (34)herself.She threw the rubbish inside the bin and then (35)walking.It all took her great effort.There's so much rubbish and no one ever does (36)about it.I was moved to (37)this old woman make such a great effort to keep even a small part of it (38)! I haven't been able to(39)thinking about that all day.I want to learn from her.I've decided to pick up rubbish off the (40) if I meet from now on.I hope people will do the same as I do.21. A. hard B. easily C. early D. late22. A. bottles B. boxes C. rubbish D. paper23. A. walk B. pass C. go D. rush24. A. when B. therefore C. so D. because25. A. back B. color C. mark D. act26. A. bike B. dog C. stick D. umbrella27. A. weak B. rich C. clever D. sad28. A. quickly B. slowly C. angrily D. happily29. A. at midnight B. at dusk C. at first D. at last30. A. in B. against C. around D. under31. A. reached for B. threw away C. searched for D. looked at32. A. unable B. difficult C. different D. impossible33. A. lifted up B. dropped down C. put in D. picked up34. A. warm B. support C. help D. hide35. A. remembered B. started C. enjoyed D. continued36. A. something B. everything C. anything D. nothing37. A. see B. feel C. have D. let38. A. busy B. beautiful C. clean D. dirty39. A. stop B. keep C. mind D. regret40. A. wall B. desk C. classroom D. ground四、语法填空(本大题共1小题,共15.0分)41.Getting better grades can be hard.However,you can achieve it if steps (1)(take).Firstly,make good use (2) class time.Do your reading before class,and if anything confuses you,think out questions you can ask in class.When your teacher asks (3) question,put up your hand to give an answer.If you are (4) (nature)shy,take a breath,relax and do your best (5) (ignore)other people's opinions.More importantly,clearly write down what your teacher says in class.Secondly,pay attention to your homework.Try to find a place where there are no (6) (noise).Put your phone out of sight so you won't be attracted to it.After studying for45 minutes,take 15 minutes to get up,move or do another activity (7) gives your braina rest.Finally,take care of (8) (you).Not getting enough sleep is terrible for yourgrades.So go to bed early and sleep about eight hours every night.And physicalexercise (9) (be)helpful for you to improve your grades.So,if you don't play a sportor have gym class every day,spend 30 minutes after school (10) (walk)to get some exercise.五、短文改错(本大题共1小题,共10.0分)42.短文中共有10处错误,错误涉及一个单词的增加、删除或修改.增加:在缺词处加一个漏词符号(∧),并在此符号下面写出该加的词.删除:把多余的词用斜线()划掉.修改:在错的词下划一横线,并在该词的下面写出修改后的词.注意:1.每处错误及其修改均仅限一词;2.只允许修改10处,多者(从第11处起)不计分.Dear David,How time flies! It's been an entirely week since you left our school. You can't imagi ne what I miss the time we spend together! I am very happy to be your friend and gratefu l for your help with my English. Because of I have learned a lot from you, I am more confident of your future study. I real got pleasure from speak English with you.Although we are not in a same country now, our friendship will last forever. And I will try my best learn English and make more friend.Yours,Li Hua六、书面表达(本大题共1小题,共25.0分)43.假定你是李华,将于今年七月从新星外语学校毕业.你从报纸上得知B&B公司要招聘一名英文秘书,你很感兴趣.请给该公司写一封求职信,包括下列要点:1.年龄:18;2.学习:成绩优秀;3.英语水平:很好、特别是口语;4.兴趣:喜爱阅读、音乐、户外活动等;5.特长:熟练使用电脑、打字快;6.性格:善良、积极、容易相处.注意:1.词数100左右;2.可适当增加细节,以使行文连贯.3.参考词汇:职位 position 新星外语学校Xinxing Foreign Languages School答案和解析1.【答案】【小题1】D 【小题2】B 【小题3】B 【小题4】C【解析】1.D,推理判断题,根据前文的he drew an umbrella on his hand"他在手上画了一把雨伞"可知,it指代的是他所画的雨伞,使用his drawing,故答案为D.2.B,推理判断题,根据上文的The woman's umbrella was so nice that he carefully looked at it and said to himself not to forget to buy a few umbrellas like it"女士的雨伞如此得漂亮以致于她认真地看着,并告诉自己不要忘了买类似那样的雨伞"可推测Mr.Brown是陷入了沉思,故答案为B.3.B,细节理解题,根据句子 "It seems that I was luckier than the other four women." She thought可知,女士认为她是幸运的,故答案为B.4.C,推理判断题,根据句子Seven days later Mr. Brown left the capital可推测,Mr.Brown是在伦敦买的雨伞,故答案为C.这是一篇故事类短文.文章讲述了Mr. Brown去伦敦办事帮家人买雨伞的故事.解答阅读理解题,首先对原文材料迅速浏览,掌握全文的主旨大意.因为阅读理解题一般没有标题,所以,速读全文,抓住中心主旨很有必要,在速读的过程中,应尽可能多地捕获信息材料.其次,细读题材,各个击破.掌握全文的大意之后,细细阅读每篇材料后的问题,弄清每题要求后,带着问题,再回到原文中去寻找、捕获有关信息.最后,要善于抓住每段的主题句,阅读时,要有较强的针对性.对于捕获到的信息,要做认真分析,仔细推敲,理解透彻,只有这样,针对题目要求,才能做到稳、准.5.【答案】【小题1】A 【小题2】D 【小题3】C 【小题4】D【解析】1.A.细节理解题.根据文章第一段,Thank you for your interest in KidsHealth. We welcome any comment you might have about the content(内容) and design of our website.感谢您对KidsHealth的关注.我们欢迎您对我们网站的内容和设计提出任何意见.说明这是个网站.结合选项,故选A.2.D.细节理解题.根据文章第二段,Although we cannot reply personally,尽管我们不能每个人都回复.可知,他们不能回答所有人的问题.结合选项,故选D.3.C.细节理解题.根据文章第三段,What If You're A Kid Or A Teen And Have A Question/The first place to start is with your parents当一个幼童、或青少年有了问题/第一站要开始的是去问父母.结合选项,故选C.4.D.细节理解题.根据表格最后一行,General Comments - Send us your general comments,praise,or complaints about our site 总评--发送给我们总体的评论、表扬.或者对我们网站的抱怨.可知,如果对儿童健康服务不满意,应该属于抱怨,可以发送总评.结合选项,故选D.本文章主要是KidsHealth杂志的对读者的来信回复以及相关内容的介绍:我们很高兴收到您的信息.感谢您对我们儿童健康的关注.但是我们不能提供很多信息来帮助您更好的理解健康问题.尽管如此,我们仍然会阅读您的信息并认真对待它们.并罗列了不同年龄段孩子的邮寄信箱要求.做这类题材阅读理解时要求考生对文章通读一遍,做题时结合原文和题目有针对性的找出相关语句进行仔细分析,结合选项选出正确答案.推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案,切忌胡乱猜测,一定要做到有理有据.9.【答案】【小题1】C 【小题2】B 【小题3】A 【小题4】D【解析】1.C.句意理解题.根据第二段 She told me she was sick,and she explained she wore a wig because her medicine made her lose her hair.We left it a t that.她告诉我她病了.她解释说,她戴假发是因为她的药让她掉了头发,我们就把它忘了.可知意为不再谈论关于她的病的话题.故选C.2.B 细节题.根据文章内容,I received much ridicule (嘲笑)from my friends for this because they thought I was ignoring them for Lisa因为我经常和Lisa玩,而忽视了之前的朋友,.因此被朋友们嘲笑,结合选项,故选 B3.A 细节题.根据文章内容,I was shocked.Lisa never spoke of her illness as if it could kill her.Well,all these years I have kept Lisa in my mind and heart.When I go through the important events in my life,I think of Lisa.听到Lisa去世的消息,我很震惊.她从来没有说过这个病会杀害他自己.这些年当我遇到生活中的重要的事的时候,我总会想她,她勇敢的面对生活困难的勇气,让我更好的面对自己的事.结合选项,故选 A4.D 写作目的题.根据文章内容,I have no idea what her parents'first names are.I write to your column (专栏) and hope you can point me in the right direction.我不知道怎么找到Lisa的父母,因此写信给专栏,希望能得到帮助来找到Lisa的父母,结合选项,故选 D本文讲述了我的一个好友Lisa面对癌症勇敢面对的事,她勇敢的面对困难的是激励着我.考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.13.【答案】【小题1】B 【小题2】A 【小题3】B【解析】1.B.细节推理题,根据文章第二段的It seemed to be a great way to thank her for all of the flowers she had given me through the years.这似乎是个感谢妈妈这些年为她所做的好机会.可知本题答案为B选项.2.A.细节推理题,根据文章第三段的small fresh colorful bouquet would hardly fill a small vase.小花束很难填满这个小花瓶.可知作者感到很窘迫,因为她感觉到自己送的花束太小了,这里根本没有提及价格.Skimpy,就是瘦小的,故本题答案为A选项.3.B.推理判断题.尽管花的数量很少,妈妈却说这样她可以更好地欣赏每一朵花.文章最后一段升华了主题.由此推断作者从她母亲那里学会从另一个角度去看问题.故选B.本文讲的是妈妈跟女儿之间的故事,本来妈妈在她跟女儿的院子里种了花,并用花为女儿装饰了房子,女儿为感谢妈妈而去花店为妈妈买了一束花,但是这一束花太少了,女儿对妈妈感到抱歉,但是妈妈却教给女儿一个道理;有时候有些东西不是越多越好,数量少一点,对个体的关注就多一些.考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.16.【答案】【小题1】F 【小题2】G 【小题3】B 【小题4】A 【小题5】D【解析】1-5 FGBAD1.F.细节理解题.根据前文"Your first year of high school is here,but you don't know what you'll do! So you'll feel nervous about it你高中的第一年到了,但是你不知道你要做什么!所以你会感到紧张".可知此处应填"为了避免这种情况,你应该尽快适应你的高中生活‘.故选F.2.G.细节理解题.根据下文"Knowing new people is one of the most pleasant things to do in high school.认识新朋友是高中最愉快的事情之一.".可知此处应填"但是,不要忽视那些你见过但不太了解的人‘.故选G.3.B.细节理解题.根据前文"For example,don't be late for class or don't make noise in class 例如,上课不要迟到或在课堂上不要制造噪音".可知此处应填"最重要的是,不要打架‘.故选B.4.A.推理判断题.根据下文"Teachers really hate it if you don't prepare well老师很讨厌你准备不充分".可知此处应填"时刻准备着‘.故选A.5.D.推理判断题.根据前文"Learn in a smarter way以更聪明的方式学习".可知此处应填"例如,上课时要集中注意力‘.故选D.本文是一篇选句填空,文章主要介绍了认识新朋友是高中最愉快的事情之一.此题主要考查学生的细节理解和推理判断能力.做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确选择.在做推理判断题时不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.21.【答案】【小题1】B 【小题2】C 【小题3】D 【小题4】A 【小题5】D 【小题6】C 【小题7】A 【小题8】B 【小题9】C 【小题10】B 【小题11】A 【小题12】B 【小题13】D 【小题14】B 【小题15】D 【小题16】C 【小题17】A 【小题18】C 【小题19】A 【小题20】D【解析】1--5 BCDAD 6--10 CABCB 11--15 ABDBD 16--20 CACAD1.B.考查副词辨析.A.hard难的;B.easily容易的;C.early 早的;D.late 迟的.根据下文because there is a short cut(捷径)to the station可知有一条捷径,故作者应是很容易就到达车站.故选择B.2.D.考查名词辨析.A.bottles 瓶子;B.boxes盒子;C.rubbish垃圾;D.paper 纸.根据上文提到的smelly(难闻的)以及下文不断提到的 a rubbish bin.可知此处是指垃圾.故选择D.3.D.考查动词辨析.A.walk 走路;B.pass经过;C.go 去;D.rush冲出.通过上文描述可知,这条捷径上垃圾多,气味难闻.那么根据常识,人们都会很快跑开.故选择D.4.A.考查连词辨析.选项A意为所以;选项Buntil意为直到…;选项Cwhen意为当…时候;选项Dbecause意为因为.此处引导时间状语从句.until肯定形式表示的意思是"做某事直至某时",动词必须是延续性的,否定形式表达的意思是"直至某时才做某事",动词为延续性或非延续性都可以.根据句意:今天,我像往常一样试图冲过去,这时有事让我停了下来.故选A.5. D.考查名词辨析.A.back后边;B.color颜色;C.mark 标记;D.act 行动.通过下文的描述可知作者看到的应该是老人捡垃圾这一行为.所以此句句意为:这是我看到的最美的行为.故选择D.6.C.考查名词辨析.A.bike自行车;B.dog 狗;C.stick 棍子,拐杖;D.umbrella 雨伞.根据句意老人是在某样东西的帮助下才能走路的.根据常识,能起作用的应是拐杖.故选C.7. A.考查形容词辨析.根据上文描述可知老人拄着拐杖,可知身体还不是很硬朗.选项A意为虚弱的;选项B意为富有的;选项C意为聪明的;选项D意为悲伤的.故选择A.8.B.考查副词辨析.A.quickly快速地;B.slowly 缓慢地;C.angrily生气地;D.happily 高兴地.根据下文as each step took some effort可知,老人每一步都走得很艰难.根据下文,选项B最恰当,指老人走得很缓慢.所以选B.9.C.考查词组辨析.A.at midnight在午夜;B.at dusk在黄昏;C.at first第一,最初的;D.at last 最后.前一分句意为我没有注意到她,后一分句意为知道她停在附近的一个垃圾桶旁.最符合句意的应该是选项C,意为最初我没有注意到她.10.B.考查介词辨析.A.in在…的里面;B.against靠着;C.around围着;D.under 在…的下面.空格前指她把拐杖___在垃圾桶旁.根据常识,不应是放在垃圾桶里面或下面,而应该是靠着垃圾桶放着.故选择B,表示依靠.11.A.考查动词词组辨析.通过上文的Then she leaned(斜倚着)on it with her right hand.She bent down可知下文应是捡起垃圾.选项A意为寻找;选项B意为扔掉;选项C意为伸手去拿;选项D意为看着.根据句意,选择A.12.B.考查形容词辨析.根据下文的and it took her a while可知,花费了她一段时间,故推测出她发现这样做很困难.选项A意为不能的;选项B意为困难的;选项C意为不同的;选项D意为不可能的.根据句意,选项B.13.D.考查短语辨析.A.lifted up 举起;B.dropped down C落下;.put in 放进;D.picked up捡起.通过上下文可知老人想把垃圾捡起来然后把垃圾扔到垃圾桶里.故选择D.14.B.考查动词辨析.A.warm温暖;B.support支持;C.help 帮助;D.hide 隐藏.通过上文可知老人走路需要拄拐杖,捡垃圾也需要费很大劲,所以此处老人应是用垃圾桶来支撑着身体.根据句意,选择B.15.D.考查动词辨析.A.remembered记住;B.started 开始;C.enjoyed喜欢;D.continued 继续.通过上文She threw the rubbish inside the bin 可知她把垃圾扔进了垃圾桶.那么随后她应是继续向前走.根据句意,选择D.16.C.考查代词辨析.A.something 一些事;B.everything每件事;C.anything 任何事;D.nothing 没有事.根据句意,地上有很多垃圾,但是没有人对此采取任何行动.选项A意为某事;选项B意为任何事;选项C意为每件事;选项D意为没有什么.由于前面已经有否定词,因此此处用anything,构成全否,表示什么都没有.故选择C.17.A.考查动词辨析.A.see 看见;B.feel感觉;C.have拥有;D.let 让.根据常识可知一般是看到某人的所作所为以后才会受到感动.根据句意,选择A.18.C.考查形容词辨析.A.busy 繁忙的;B.beautiful 美丽的;C.clean干净的;D.dirty脏的.根据上文可知老人的行为是为了清除垃圾,保持干净.根据句意,选择C.19.A.考查动词辨析.A.stop 停止;B.keep保持;C.mind 介意;D.regret 忘记.根据上文可知,作者深受感动,所以一整天作者都无法停止不想这件事情.选择B,构成短语,stop doing sth,解释为停止做某事.选择A.20.D.考查名词辨析.A.wall墙;B.desk桌子;C.classroom教室;D.ground 地面.根据常识可知,垃圾一般都是在地面上根据句意,选择D.本文讲述了在我每天上班的路上有很多的垃圾,一直没有人捡垃圾.一天我看到一位老师很吃力地在捡垃圾,深受感动,决定向她学习.做完型填空首先要通读全文,了解大意.一篇完形填空的文章有许多空格,所以,必须先通读一至两遍,才能大概了解文章的内容.千万不要看一句,做一句.其次要逐句分析,前后一致.选择答案时,要考虑整个句子的内容,包括搭配、时态、语法等.答案全部填完后,再通读一遍文章,检查是否通顺流畅了,用词得当,意思正确.41.【答案】【小题1】are taken【小题2】of【小题3】a【小题4】naturally【小题5】to ignore【小题6】noises【小题7】which/that【小题8】yourself【小题9】is【小题10】walking【解析】1.are taken.考查时态语态.因为文章介绍的是客观情况是一般现在时,动词take与主语steps是被动关系,所以是一般现在时的被动语态,故填are taken.2.of.考查介词.句意:首先,充分利用上课时间.make good use of…意为"充分利用…"是固定短语,故填of.3.a.考查冠词.句意:当你的老师问问题时,要举手回答.根据句意可知此处是泛指意为"一"应用不定冠词a,故填a.4.naturally.考查副词.根据空后的形容词shy可知应用副词修饰形容词,故填naturally.5.to ignore.考查动词不定式.根据空前的 do your best可知考查短语 do one's best to do sth.意为"尽力去做某事",动词应用不定式形式,故填to ignore.6.noises.考查名词复数.根据空前的形容词no并结合there are可知应用名词复数形式,故填noises.7.which/that.考查定语从句.分析句子结构可知是定语从句,先行词activity在从句中作主语指物,应用关系代词which/that,故填which/that.8.yourself.考查反身代词.句意:最后,照顾好自己.祈使句的主语是you,此处就是指的主语自己应用反身代词,故填yourself.9.is.考查时态和主谓一致.因为文章介绍的是客观情况是一般现在时,主语 physical exercise 是不可数名词,谓语动词应用第三人称单数形式,故填is.10.walking.考查动名词.根据前面的动词spend可知应用动名词形式,spend some time doing sth.意为"花费多长时间做某事",动词应用动名词形式,故填walking.本文就如何取得好成绩给出了三条措施:首先,充分利用课堂时间.其次,注意你的家庭作业.最后,照顾好你自己.语法填空是通过语篇在语境中考查语法知识的运用能力,在解题前应快速浏览短文掌握大意,在读懂短文的基础上,结合短文提供的特定的语言环境去逐句分析,逐题解答.扎实的语法功底加上准确的理解是解答语法填空题的关键.42.【答案】Dear David,How time flies! It's been an entirely week since you left our school. You can't imagine what I miss the time we spend together! I am very happy to be your friend and grateful for your help with my English. Because of I have learned a lot from you, I am more confidentof your future study. I real got pleasure from speak English with you.Although we are not in a same country now, our friendship will last forever. And I will try my best∧ learn English and make more friend.详解:1.entirely改成entire.考查形容词.此处用形容词修饰名词week,entire是形容词"第11页,共12页。
广西南宁市马山县金伦中学、华侨、新桥、罗圩中学2025届高三生物第一学期期末考试模拟试题注意事项:1.答卷前,考生务必将自己的姓名、准考证号、考场号和座位号填写在试题卷和答题卡上。
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一、选择题(本大题共7小题,每小题6分,共42分。
)1.用射线处理某野生型纯合的深眼色果蝇群体后,获得了甲、乙两种隐性突变的果蝇(性状均为浅眼色)。
甲的隐性突变基因用a表示,乙的隐性突变基因用b表示,a、b基因分别独立遗传。
现用甲品系雄果蝇和乙品系雌果蝇杂交,F1雄性均表现为浅眼色,雌性均表现为深眼色。
下列叙述错误的是A.两个隐性突变基因在遗传过程中能够自由组合B.野生型雄果蝇突变获得1个b基因就能出现浅眼色性状C.F1雌、雄果蝇杂交后代中深眼色果蝇所占比例为3/16D.亲本甲、乙果蝇的基因型分别为aaX B Y和AAX b X b2.下列关于酵母细胞固定化实验的叙述,正确的是A.用温水使海藻酸钠迅速溶解,待其冷却到室温后用于包埋细胞B.进行包埋时,用于悬浮细胞的CaCl2溶液浓度要适宜C.注射器(或滴管)出口应尽量贴近液面以保证凝胶珠成为球状D.包埋酵母细胞的凝胶珠为淡黄色半透明状,并具有一定的弹性3.选择正确的实验试剂是实验成功的关键。
下列实验中所选试剂效果最好的是()A.探究酵母菌呼吸作用的方式——BTB(溴麝香草酚蓝)溶液B.观察洋葱表皮细胞质壁分离——1.5g/mL 的蔗糖溶液C.叶绿体色素的分离——无水乙醇D.观察细胞有丝分裂中染色体的行为——甲基绿染液4.下列关于酶和ATP的叙述正确的是A.酶使细胞代谢高效而有序的进行,对生命活动具有重要的调节作用B.利用淀粉、蔗糖、淀粉酶和碘液可以验证酶的专一性C.酶和ATP均具有高效性和专一性D.将ATP分子末端的磷酸基团转移至腺嘌呤核糖核苷酸上产物是ADP5.下列生物学实验操作或描述正确的是()A.低温诱导植物染色体数目变化实验中,染色体数目加倍的细胞所占的比例与固定液处理的时间正相关B.调查土壤小动物丰富度时,用带冷光源的诱虫器采集小动物时,与实际数据相比,测得数值更小C.鉴定组织样液是否含有蛋白质,应先后加入等量的双缩脲试剂A液和B液D.在“观察洋葱根尖有丝分裂”和“观察细胞中DNA和RNA的分布”的实验中,加入盐酸的浓度和目的都相同6.高等动物生命活动调节过程中,信号分子在细胞间起重要作用。
中学2019—2020学年度第一学期行事历(高中部)周次时间主要工作预备周 8月20日︱8月26日 1、8月20日,召开新学期第一次行政会,布置开学工作(办公室);2、8月21日,校行政工作人员上班(办公室);3、网上阅卷培训(教务处);4、高一年级教师聘任(教务处);5、新高三年级入学考(教务处);7、高一新生报道、体检、军训(政教处);8、高一新生入学教育(政教处);9、迎新生志愿服务活动(团委);10、2019年合肥市中小学教师远程培训开始(督导室);11、召开党委“讲严立”专题民主生活会(党建办);12、汇编教学评估和光荣册(教研室);13、高一年级综合素质评价(信息中心)8月27日︱9月2日 1、8月25日教学人员签到上班,8:30召开全体教职工大会(办公室);2、迎接“意识形态工作”检查(办公室);3、上交各类计划(各部门);4、高一年级新生分班工作(教务处);5、高三年级开展“写给一年后自己的一封信”活动(团委);6、聘任各年级学科组长(教研室)1 9月3日︱9月9日 1、行政岗位聘任;迎接市教体局开学工作检查(办公室);2、组织参加巢湖市教育工作会议(办公室);3、教学常规检查开始(教务处);4、新学年主题黑板报出刊;年级团总支组建;校园绿化区的分配及维护(团委);5、建设初中支部标准化活动室(党建办);6、召开学科主任、学科组长会议,总结上学期工作、布置新学期工作(教研室);7、学科组活动开始(教研室);8、征订教辅资料(教研室);9、高中部广播系统安装调试(信息中心)2 9月10日︱9月16日 1、新一轮职称评审工作开始(办公室);2、第22次推普周活动(教务处);3、新生团组织关系转入;组建新一届学生会;各类志愿者招募;教师节活动(团委);4、公示巢湖市四中“高中生生涯规划教育”课程实施方案(生涯规划中心);5、庆祝第34个教师节(工会办公室党建办);6、启动高一“作业规范月”活动(教研室)3 9月17日︱9月23日 1、迎接档案工作检查(办公室);2、“9.18”防空疏散演练(政教处);3、第三届校园“十佳美德少年”“十佳美德青年”评选;文明寝室评选;社团指导老师招募(团委);4、2019年教师继续教育学时汇总登记印验(督导室);5、召开支部“讲严立”专题组织生活会(党建办);6、启动新学年竞赛及自主招生辅导工作(教研室)4 10月1日︱10月7日 1、庆祝国庆节(办公室);2、高二年级第一次月考(教务处);3、出《庆国庆》主题板报;文明示范岗(团委);4、中学生职业生涯规划宣传活动;(生涯规划中心);5、开展党员进社区志愿服务活动(党建办)5 10月8日︱10月14日 1、校刊编辑(办公室);2、高一年级第一次月考(教务处);3、组织开展青少年普法教育及法律进社区、进家庭活动(政教处);4、常见传染性疾病防控宣传教育活动(政教处);5、召开团队工作会暨团干培训会;青年志愿者服务活动(团委);6、高一新生规划高中生活,拟定个人规划书(生涯规划中心);7、参加职称评定的教师继续教育学时登记(督导室);8、发展新党员(党建办)9、启动新一届青蓝结对活动(教研室)6 10月15日︱10月21日 1、开展社区志愿活动;学生会阶段工作总结会;举办第十届校园科技节(团委);2、高三年级第一次摸底考试(教务处)3、高三学生家长会(政教处);4、“法律进校园”活动(政教处);5、筹备校园艺术节和市中学生文艺汇演参演节目(政教处);6、开展“我们的节日—重阳”主题教育活动(政教处);7、组织离退休教职工开展重阳节活动(工会);8、开展党员外出学习教育活动(党建办);9、高一“作业规范月”活动总结提升(教研室);10、成立自主招生指导组(教研室)7 10月22日︱10月28日 1、七年级留守儿童情况调查(团委);2、布置爱国主义读书活动(政教处);3、召开班主任工作例会(政教处);4、教师远程培训进度督查(督导室);5、学科组活动阶段总结(教研室);6、教师教学质量评估(信息中心)8 10月29日︱11月4日 1、中学生团校开课;筹集爱心款;开展学生社团活动(团委);2、高一新生环境适应性问卷调查(生涯规划中心);3、高二年级第二次月考(教务处);4、“11.2”全国交通安全宣传日活动(政教处);5、高三一轮复习调研(教研室);6、命题名师库的建立(教研室)9 11月5日︱11月11日 1、校园安全大排查(政教处;)2、“11.9”消防安全检查及教育暨消防安全自救自护演练活动(政教处);3、爱心资助摸底;“特困生”摸底;评选“十佳美德少年”(团委);4、师生双运会(教务处工会);5、期中教学专项检查(教研室督导室)10 11月12日︱11月18日 1、冬季传染性疾病防控知识宣传教育(政教处);2、防楼梯踩踏安全教育活动(政教处);3、高三年级第二次摸底考试(教务处);4、感恩专项教育;志愿服务活动(团委);5、中学生职业生涯规划讲座(生涯规划中心);6、党员骨干教师对外公开课(党建办);7、期中学科组工作总结(教研室);8、组建高中部机器人远航战队(信息中心)11 11月19日︱11月25日 1、高一年级第二次月考(教务处);2、收集科技节作品(团委);3、冬季交通安全宣传教育(政教处);4、课题研究研讨会(教研室)12 11月26日︱12月2日 1、高中教学征询(教务处);2、“十佳美德少年”宣传、公示;开展社团活动(团委);3、“12.1”防艾日知识和毒品预防宣传教育(政教处);4、做好党建年度考核工作(党建办);5、青蓝结对专题交流会(教研室)13 12月3日︱12月9日 1、高一年级学生模拟选科(教务处);2、国际志愿者日志愿活动;关爱留守儿童活动(团委);3、“12.4”国家宪法日活动(政教处);4、收缴下半年党费(党建办)14 12月10日︱12月16日 1、校刊出刊(办公室);2、 31次听课周活动(教务处);3、 44次教学开放日活动(教务处);4、发放资助爱心款、核准扶贫款(团委);5、组织学生参加市中学生文艺汇演(政教处);6、“12.13”国家公祭日主题教育活动(政教处)7、召开组织生活会及开展民主评议党员(党建办)15 12月17日︱12月23日 1、教师支教工作检查(办公室);2、科技节作品评选及公示(团委);3、校园艺术节文艺汇演(政教处);4、党风廉政建设工作总结(党建办)16 12月24日︱12月30日 1、2019年年度考核(办公室);2、寝室、班级文化评比(团委);3、开展“崇尚科学,反对邪教”教育活动(政教处);4、年终综治工作检查评比(政教处);5、召开组织生活会及开展民主评议党员(党建办)17 12月31日︱1月6日 1、庆祝元旦,举办教职工迎新游乐活动(工会办公室);2、支教工作总结(办公室);3、社团工作交流会及评比表彰;元旦黑板报(团委);4、开展“元旦”中华经典诵读比赛(政教处);5、书记党建工作述职(党建办);6、学科组工作总结(教研室)18 1月7日︱1月13日1、合肥市高三一模考试(教务处);2、团、队、会及志愿者工作总结及表彰(团委);3、班级安全教育评比(政教处);4、期末教学工作检查(教研室督导室);5、意识形态工作总结(党建办);6、学科组量化考核,教学总结及获奖统计(教研室)19 1月14日︱1月20日 1、上交各类总结材料(办公室);2、高一、高二年级期末考试(教务处)20 1月21日︱1月27日 1、召开期末教师大会(办公室);2、假期值班(办公室);3、开展“我们的节日—春节”主题教育活动(政教处);4、发放《寒假致学生家长一封信》,召开假期安全教育班会(政教处)。
【参考答案】选择题1.C 解析:力学中的几个基本量是质量、长度、时间,也是标量;力、速度、加速度是矢量,速率是标量。
2.C 【解析】物体在不受力任何外力或受平衡力作用可以保持静止状态或匀速直线运动状态,故A 错误;例如,竖直上抛的物体,在最高点时速度为零,但受重力作用,故B 错误;物体运动状态发生改变一定受外力作用,“力是改变物体运动状态的原因”,故C 正确;物体的运动方向不一定是物体所受合外力的方向,如“减速直线运动”,合力与运动方向相反,D 错误。
3. B 【解析】满足一定的条件时可将实际物体看作质点,位移不是理想化模型,选项A 错误; 亚里士多德认为,“力是维持物体运动的原因”,故B 项正确 C 选项,是伽利略,不是牛顿提出的,C 错误;自由落体运动不是“等效替代”的思想,而是“理想化模型”,选项D 错误; 4. C 解析: 质点做匀加速直线运动,第5 s 内的位移比第3 s 内的位移多6 m , 故x 5-x 3=2aT 2,解得a =6/(2×12)m/s 2=3 m/s 2,C 正确。
5.B 【解析】x ﹣t 图象描述质点做直线运动,位移随时间变化的关系,其斜率对应运动速度,可知B 做匀速运动,A 做加速运动;在5s 末,B 质点的速度大于2 m/s ,C 错;平均速度等于位移除以时间,在0~5s 时间内,两质点的位移相同,平均速度相同,B 正确;在0~5s 时间内,A 、B 间的距离应先增后减,D 错。
6.B 【解析】分析:作用力和反作用力是发生在相互作用的物体上,大小相等,方向相反,作用在同一条直线上.根据平衡条件求解.因为正常转动时,风扇对空气有一个向下的力,根据作用力与反作用力,空气对风扇有一个向上的力.因为风扇在竖直方向是静止的,所以合力为0.在风扇不转时,G F =拉,在风扇转动时,'G F F =+拉空气,因为G 是不变的,所以'F 拉在转动时会变小,B 正确7. A 【解析】由力的矢量三角形定则可知“三个共点力构成首尾相连的三角形,其合力为零”,A 正确;力的合成遵循平行四边形定则,不是简单的代数加减,D 选项错。
南宁市2024-2025学年秋季学期期中考试高一数学试卷考试时长: 120分钟满分: 150分一、选择题:本题共8小题,每小题5分,共40分. 在每小题给出的四个选项中,只有一项是符合题目要求的.1. 全称量词命题“∀x∈R,x²≥0”的否定是,( )^ ∀x∈R,x²≤0 B. ∃x∈R, x²<0C. ∃x∈R,x²≥0 D ∀x∈R, x²<02. 已知集合A={0,1,2}, B={x|-2<x≤3},则A∩B= ( )A. {1}B. {1,2}C. {0,1}D. {0,1,2}3. 集合{1,2}的子集个数为( )A. 1个B. 2个C. 3个D. 4个4. “我住在广西”是“我住在中国”的( )A. 充要条件B. 充分不必要条件C. 必要不充分条件D. 既不充分也不必要条件5. 如果m>0, 那么m+4的最小值为( )mA. 2B. 22C. 4D. 86. 函数f(x)=x+3的定义域是( )A. {x|x≥-3}B. {x|x>0}C. {x|x≥3}D. {x|x≥4}7. 已知f(x―3)=2x²―3x+1,则f(1)= ( )A. 15B. 21C. 3D. 08. 若不等式kx²―6kx+k+8≥0的解集为R,则实数k的取值范围是 ( )A. 0≤k≤1B. 0<k≤1C. k<0或k>1D. k≤0或k≥1第1页,共4页二、选择题:本题共3小题,每小题6分,共18分. 在每小题给出的选项中,有多项符合题目要求. 全部选对的得6分,部分选对的得部分分,有选错的得0分.9. 若a<b<0, 则下列不等式正确的是 ( )A1 a <1bB.ab<a⁷ c |a| D.1a>1b10. 下列各组函数表示同一函数的是( )A.f(x)=x,g(x)=x2B.f(x)=x²,g(x)=|x|²C.f(x)=x+1,g(x)=x2―1x―1D.f(x)=x0x,g(x)=xx211. 若函数y=x²+bx+c的图象与x轴的两个交点是A(-2,0),B(1,0),则下列结论正确的是( )A. b+c=-1B. 方程x²+bx+c=0的两根是-2, 1C. 不等式.x²+bx+c>0的解集是{x|-2<x<1}D. 不等式x²+bx+c≤0的解集是{x|-2≤x≤1}三、填空题:本题共3小题,每小题5分,共15分.12. 设集合A={2,1-a,5}, 若4∈A,则a= .13. 已知函数那么f(f(3))= .14. 不等式x+3x―5<0的解集为 .四、解答题:本题共5小题,共77分. 解答应写出文字说明、证明过程或演算步骤.15.(本题13分) 已知全集U=R, 集合.A=x|x≥4,B=x|―6≤x≤6.(1)求A∩B和A∪B;(2)求((C U A)∩(C U B)第2页,共4页16.(本题15分) 设集合U=R,A=x|0≤x≤3,B=x|m―1≤x≤2m.(1)m=3,求A∪(C U B);(2) 若B⊆A求m的取值范围.17.(本题15分) 已知二次函数f(x)=x²―ax+b,f(1)=2,f(3)=―6.(1) 求f(x)的解析式;(2) 写出f(x)的单调区间; 并求.x∈[―1,5]时,f(x)的最大值与最小值.第3页,共4页18.(本题17分) 求下列函数的最值. (1) 已知x>2, 求y=x+1x―2的最小值;(2) 已知:x>0,y>0,且2x+y=1.求1x +9y的最小值.(3) 已知(0<x<4,求x(4―3x)的最大值.19.(本题17分)已知函数f(x)=,且f(1)=10.(1) 求a的值;(2) 判断函数f(x)在[3,+∞)上的单调性,并用定义法证明;(3) 求函数f(x)在区间[3,6]上的最大值和最小值.第4页,共4页高一数学11月期中考试参考答案题号1234567891011答案BDDBCABABDBDABD1. B 【详解】全称量词命题“∀x∈R, x²≥0”的否定是 ∃x ∈R,x²<0,故选: B.2. D 【详解】由题意. A =0.1,2,B =x|―2<x ≤3,所以A∩B={0,1,2}.故选: D.3. D 【详解】因为A={0.1}, 所以集合A 有∅,{0},{1},{0,1}共4个子集.故选: D4. B 【详解】“我住在广西”则一定有“我住在中国”,反之不成立,所以“我住在广西”则一定有“我住在中国”的充分不必要条件.故选:B5. C 【详解】 m >0,m +4m ≥2m ⋅4m =4,当且仅当 m =4m ,即m=2时取等号,所以 m +4m 的最小值为4.故选:C6. A 【详解】要使函数 f (x )=x +3有意义, 需x+3≥0, 解得x≥-3, 即得函数的定义域为:{x|x≥-3}.故选: A.7. B 【详解】∵f(x-3)=2x²-3x+1, ∴f(1)=(4-3)=2×4²-3×4+1=21,故选B.8. A 【详解】若k=0, 则不等式为8>0, 满足条件,若k≠0,要使不等式恒成立,则满足 {k >0=36k 2―4k (k +8)≤0, 即 {k >0k 2―k ≤0 则 {k >00≤k ≤1,所以0<k≤1, 综上, 实数k 的取值范围为0≤k≤1. 故选: A9. BD 【详解】对于A 、D,因为a<b<0,所以 ab>0,则 1ab >0,所以 a ⋅1ab <b ⋅1ab ,即 1b <1a ,故A 错误, D 正确; 对于B, 因为a<b<0, 所以a·a>b·a, 即 ab <a²,故 B 正确;对于C, 若a<-1<b<0, 则|a|>1, 0<|b|<1, 所以有|a|>|b|, 故C 错误.故选: BD.10. BD 【分析】同一个函数的定义:如果两个函数的定义域相同,对应关系完全一致,那么这两个函数为同一个函数.根据定义判断选项.【详解】A. f(x)=x,g(x)=|x|,对应关系不一致,不是同一函数.B.f (x )=x²,g (x )=|x|²=x²,定义域相同,对应关系一致,是同一函数.C. f(x)定义域为R, g(x)定义域为{x|x≠1}, 定义域不同, 不是同一函数.D. f(x)定义域为{x|x≠0},可化为 f (x )=1x ,g(x)定义域为 x|x ≠0,可化为 g (x )=1x ,是同一函数.故选: BD.11. ABD 【详解】依题意, 方程 x²+bx +c =0的两根是-2, 1, B 正确;显然-b=-1,c=-2,即b=1,c=-2,b+c=-1, A 正确;不等式 x²+bx +c >0, 即 x²+x ―2>0的解集为{x|x<-2或x>1}, C 错误;不等式 x²+bx +c ≤0,即 x²+x ―2≤0的解集是 x|―2≤x ≤1,D 正确.故选: ABD 12. - 3【详解】集合A={2,1-a,5},若4∈A, 则1-a=4⇒a=-3.故答案为: - 313. - 1【详解】因为 f (x )={2―x (x ≥1)x 2+x ―1(x <1),所以f(3)=2-3=-1,所以 f (f (3))=f (―1)=(―1)²―1―1=―1, 故答案为: -1.14. {x|-3<x<5}【详解】 x +3x ―5<0(x +3)(x ―5)<0,解得 ―3<x <5..故答案为: x|―3<x <5答案第1页,共3页15.【详解】(1) A={x|x≥4},B={x|-6≤x≤6},A∩B={x|4≤x≤6}3分A∪B=x|x≥―6 .6分(2)C U A={x|x<4} .8分或x>6}- .10分(C U A)∩(C U B)={x|x<―6} .13分16. 【详解】A={x|0≤x≤3}(1)1分故可得或x>6}- .3分所以或x>6}-(2) 由题B⊆A:当B=∅时,m-1>2m,解得m<-1,符合题意;分 (9)分 (13)综上可得,m的取值范围为m<-1或 (15)17.【详解】(1) 因为f(x)=x²―ax+b,且f(1)=2,f(3)=-6,.............................................................................................2分解得(a=8, b=9, .........................................................5分(只有一个正确得2分)....................................................................................所以6分(2)由(1)知.对称轴为x=4,图象开口朝上分 (8)所以f(x)的减区间是(-∞,4],增区间是....................................[4,+∞)10又4∈[-1,5],所以f(x)在区间[-1,4]上单调递减,在区间[4,5]上单调递增, (12)所以f(x)ₘᵢₙ=f(4)=―7, ………………………………13分f(x)最大值在f(-1)或f(5)取到, f(-1)=18, f(5)=-6,∴f(-1)>f(5)·f(x)ₘₐₓ=f(―1)=18 ………………………………………15分18.【详解】(1)∵x>2,x―2>0,1x―2>0.6分…14分而y=x+1x―2=x―2+1x―2+2≥2(x―2)⋅1x―2+2=4, .3分当且仅当即x=3时取等号,所以……………………………………………………………5分(2)1x+9y=(1x+9y)(2x+y)=11+y x+18x y211+2yx ⋅18xy=11+62, ..8分当且仅当时,取等号,又2x+y=1,即时分101 x +9y取得最小值11+62 11分(3)15分当且仅当3x=4-3x时取等号,即(满足0<x<4)时x(4-3x)最大值为 (17)法二:函数y=x(4―3x)=―3x²+4x的开口向下,对称轴为x=―4―6=23, ..15分所以当时,x(4-3x)取得最大值为1719.【详解】(1) 函数f(x)=x2+ax,因为f(1)=10,…………………………………………………………………………………………………3分(2)函数f(x)在[3,+∞)上单调递增,知由下面证明单调区间,设3≤x₁<x₂,则f(x1)―f(x2)=x1―x2+9x1―9x2=(x1―x2)(x1x2―9x1x2), .8分由3≤x₁<x₂,则x₁x₂―9>0,x₁―x₂<0,x₁x₂>0, 11分所以(x1―x2)x1x2―9x1x2<0⇒f(x1)―f(x2)<0,即f(x₁)<f(x₂), ..12分……………………………………………………………………………………………13分(3)由(2)可知f(x)在区间[3,+∞)上单调递增,则在区间[3,6]上单调递增…………14分所以f(x)mn=f(3)=3+93=6,f(x)max=f(6)=6+96=152, 16分 (6)答案第3页,共3页。
广西南宁市金伦中学、华侨、新桥、罗圩中学 2020 学年高一英语上学期进口考试( 10 月月考)试题(考试时间 120 分试卷满分150分)听力部分 30 分第一节(共 5 小题;每题 1.5 分,满分 7.5 分)听下边 5 段对话。
每段对话后有一个小题,从题中所给的A、B、C 三个选项中选出最正确选项,并标在试卷的相应地点。
听完每段对话后,你都有 10 秒钟的时间往返答相关小题和阅读下一小题。
每段对话读两遍。
1.What ’s the weather like now?A. Rainy.B. Cloudy.C. Sunny.2.How did Charles travel through South China?A. By car.B. By bus.C. By train.3.What happened to the man?A.His car broke down.B. He missed the bus.C. He got up late.4.What instrument did Mario use to play?A.The violin.B. The piano.C. The drum.5.What is the woman trying to do?A.Finish some writing.B. Print an article.C. Find a newspaper .第二节(共 15 小题;每题 1.5 分,满分 22.5 分)听下边 5 段对话或独白。
每段对话或独白后有几个小题,从题中所给的A、B、C 三个选项中选出最正确选项,并标在试卷的相应地点。
听每段对话或独白前,你将有时间阅读各个小题,每题 5 秒钟;听完后,各小题将给出 5 秒钟的作答时间。
每段对话或独白读两遍。
听第 6 段资料,回答第 6 至 7 题。
6.What does the man think of the meeting?A. Silent.B. Noisy.C. Crowded.7.How long will the man stay?A. For the whole arrangement.B.For about one day.C.For two days.听第 7 段资料,回答第8 至 9 题。
2019—2020学年度上学期“4+N”联合体期中联考试卷高一历史(满分100分,考试时间90分钟)一、选择题(本大题共35小题,每小题2分,共70分。
每小题所列的四个选项中,只有一项符合题目要求,错选、多选或未选均不得分。
)1.“岱宗夫如何,齐鲁青未了”,诗中“齐鲁”是古来对山东的别称,这一称谓最早源于( ) A.宗法制B.分封制C.礼乐制D.郡县制2.春秋时期晋平公之母为杞国女子,晋国因此率诸侯为杞筑城。
郑国大夫批评说:“晋国不恤周宗之阙,而夏肄是屏,其弃诸姬,亦可知也已。
诸姬是弃,其谁归之?是谓离德。
”这个事实表明,当时的社会舆论依然十分重视( )A.宗法关系B.以法治国C.爱惜民力D.等级关系3.在对周代墓葬的考古挖掘中,棺椁的重数是辅助判断墓主人身份的重要依据。
一般来说,天子棺椁四重,公、侯伯子男、大夫,等差分别为三重、二重、一重。
士不重,但用大棺。
与此相关的制度是( ) A.分封制B.宗法制C.礼乐制度D.禅让制4.秦朝建立后,陆续修建了以咸阳为中心的三种道路交通网络:一是通向东北燕齐、向南直达吴楚地区的驰道;二是从咸阳至九原的直道;三是北起四川宜宾南通滇池地区的五尺道。
这些道路的修建客观上( )A.促进了国家从分裂走向统一B.加强了中央对地方的武力控制C.有利于各地经济文化的交流D.推动了统一多民族国家的形成5.“秦遂并兼四海,以为周制微弱,终为诸侯所丧,故不立尺土之封,分天下为郡县。
”这段材料可以用来说明( )A.秦朝皇帝制度的内涵B.汉代损益秦制的措施C.封建官僚政治确立的背景D.分封制退出中国历史的根源6.秦朝的三公为丞相、太尉、御史大夫。
丞相是“百官之长”,“掌丞天子,助理万机”,秦朝设左、右丞相,以右为尊。
丞相的工作职责是( )A.主管军事B.协助皇帝处理政事C.负责监察系统D.代替皇帝处理政事7.汉武帝元朔二年(前127)颁布推恩令,三十多年后20个诸侯国中,除6国未分封外,其余14国,王子封侯者已达165人。
“四校”联考(2019)高一入口考试英语试题(考试时间120分试卷满分150分)听力部分30分第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话读两遍。
1. What’s the weather like now?A. Rainy.B. Cloudy.C. Sunny.2. How did Charles travel through South China?A. By car.B. By bus.C. By train.3. What happened to the man?A. His car broke down.B. He missed the bus.C. He got up late.4. What instrument did Mario use to play?A. The violin.B. The piano.C. The drum.5. What is the woman trying to do?A. Finish some writing.B. Print an article.C. Find a newspaper .第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。
每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。
每段对话或独白读两遍。
听第6段材料,回答第6至7题。
6. What does the man think of the meeting?A. Silent.B. Noisy.C. Crowded.7. How long will the man stay?A. For the whole arrangement.B. For about one day.C. For two days.听第7段材料,回答第8至9题。
8. When does the conversation most probably take place?A. On Friday.B. On Wednesday.C. On Monday.9. What are the speakers?A. Students.B. Teachers.C. Customers.听第8段材料,回答第10至12题。
10. What does George do?A. A reporter.B. A businessman.C. A teacher.11. Where was George yesterday morning?A. In his own house.B. At his sister’s.C. In a shop.12. Which of the following did George NOT do yesterday?A. Mending his radio.B. Washing his jacket.C. Cleaning out the drawers.听第9段材料,回答第13至16题。
13. How many people will attend the party?A. 15.B. 18.C. 28.14. When will the party be held?A. On November 2.B. On December 2.C. On December 5.15. How much will the man pay for his alcohol?A.$30.B. $20.C. $10.16. What is Jeff’s telephone number?A. 324-555-6850.B. 323-555-6840.C. 323-655-6840.听第10段材料,回答第17至20题。
17. What is the speaker talking about?.A. A few laws of the country.B. Smoking.C. Drinking.18. What can we learn about the traffic in the country?A. You should never cross the road.B. There is too much of it.C. It moves on the left.19. At what age can you start to smoke in that country?.A.16.B. 18.C. 20.20. Who can the people turn to if they need some help?.A. The speaker.B. The local police.C. The city government.笔试部分120分一.阅读理解(共20小题,每小题2分,计40分)第一节:根据短文内容,选择最佳选项,并在答题卡上将选定答案的字母标号涂黑。
AHow terrible it would be if there was fire! Today is November 9.It’s time for us to learn a lot more about fire,especially what to do if we are caught in a fire:1. Shout outIf you smell smoke or see fire,shout out “Fire”! Shout as loudly as you can,because people may be asleep.2. Call 119Never try to put out the fire yourself,even if it is a very small one!Get help from your parents or call 119.3. Keep down close to the floorIf there is a lot of smoke in your room,keep down close to the floor.4. Test the doorTest the door before you open it. If the door is cool,open it carefully. If the door is hot,do not open it! Try to find a different way out.5. Get outIf you can,get out of your home as soon as possible.6. Don’t use the liftNever use the lift during the fire. It may also go wrong.7. Don’t go ba ckNever go back into a burning building!21. The passage is mainly about________ .A. how to look after yourself when on fireB. what to do when you are caught in a fireC. when to leave the burning placeD. why to call 119 when it is on fire22. When people are asleep,what will you do when fire breaks out?A. Call for help as quickly as you can.B. Wake your parents up fast.C. Shout out “Fire!” as loudly as you can.D. Run as fast as you can.23. When a fire is burning,you test the door to _____.A. find a better way outB. notice the fire clearlyC. call for a much quicker helpD. see if it is closed24. If you are caught in a fire ,you should not ______ .A. shout outB. keep down close to the floorC. call 119D. use the liftBHi, my name is Ethan King. I’m 14 years old and I love the game of soccer. In the summer of 2009, I went to northern Mozambique ( Africa) with my dad to help repair water wells(井) in local villages. I took my soccer ball along. I thought I might be able to play with the local kids. When we arrived at the village of Ntette, I threw out my ball and soon, 50 kids were playing. Many of these kids had never had the chance to enjoy playing soccer with a real ball. For me, it’s no big deal to play soccer with a real ball. I do it all the time.I’ve discovered that many kids in poor countries want to play soccer, but they can’t because they don’t have a ball. I have several soccer balls in my house. I thought that these kids would enjoy this soccer ball far more than me. So, I gave my ball to them.As we prepared to leave, one of the boys brought the soccer ball back to me. I said to him, “ No, this is yours. I gave it to you.” He laughed and cheered! I loved seeing that the y had a real ball to play with.Every kid who loves the game of soccer deserves (值得) to play. Every kid who loves the game of soccer deserves his or her own ball. And that’s why I started Charity Ball in 2010. It provides new soccer balls for kids in poor communities around the world.25.How old is Ethen? ----_______A. fourteenB.fiftyC.sixtyD. forty26. When Ethan left Ntette, _______.A. he made a soccer ball for the village boysB. he gave his soccer ball to the village boysC. one of the village boys gave him a handmade soccer ballD. he gave the village boys some money to buy soccer balls27. What do we know about Charity Ball?A. It collects old soccer balls.B. It trains kids who love soccer.C. It started when Ethan was 14 years old.D. It gives new soccer balls to kids in poor communities.28. We can learn from the passage that Ethan is _______.A. kindB. talentedC. braveD. carefulCThere once lived a young man who thought himself to be poor.One day he went to a wise man to ask how to become rich.The wise man said,“Young man,you are already rich now.”“But where is my wealth(财富)?” the young man asked.“It is with you.Your eyes are your wealth.You use them to see this world.You use them to see all the beautiful things in this world.Your feet are your wealth.You can go to any place...” the wise man said.“You call these wealth?But everyone has them.” the young man said.“These are wealth.What you have now is no t what someone else can luckily have.Are you willing to give your eyes to me?I'm willing to give you a lot of money to exchange for them.” the wise man said.“No,I'm not going to do so! My eyes are important to me!” the young man said.Everyone is rich.We should treasure(珍惜)our wealth,and take care of it.We should not overuse it because once it is gone,it is gone forever.Remember it is our wealth that we do not want to lose.29.Why did the young man go to visit the wise man?A. Because he was ill.B. Because he was the wise man's friend.C. Because he wanted to know how to be rich. D .Because he wanted to be wise.30.The wise man thought the young man himself ____.A. was richB. was poorC. was wiseD. was silly31.The wise man called ____ wealth.A.the young man's moneyB.the young man's eyes and feetC.the young man's buildingsD.the young man's cars32.The young man wasn't willing to exchange his eyes for money because ____.A.he was richB.he didn't like the old manC.he thought his eyes were important to himD.he didn't like moneyDAccording to scientists’ research, the month in which babies are born could affect them in some ways.Babies born in spring get sick easily. Children born under Aquarius (Jan. 21st—Feb. 19th) may be less clever than those born in other seasons. They may also have shorter lives than those born in autumn. Scientists believe many of the differences can be explained by the mother’s exposure to sunlight in pregnancy (怀孕).Sunlight helps lead to the production of vitamin(维生素) D in the body. The lack (缺乏) of vitamin D in the first months of life may have a bad effect on health.Vitamin D is called the “sunshine vitamin”. It has a good effect on health. A study showed that people born from April to June had slightly shorter lives than those born in October, November or December. Similar studies in the US showed that people born in autumn lived about 160 days longer than those born in spring.Professor Russell Foster said the conclusions were surprising and interesting. He added, “These are small effects but they are very, very clear. I am not giving voice to star signs and they are just for fun. But it is true that we are affected by our seaso n of birth.”33. Babies born in_____ get sick easily.A. summerB. springC. autumnD. winter34. What does the underlined word “exposure” mean in Chinese?A. 偏爱B. 抗拒C. 过敏D. 暴露35.. What can we know about vitamin D according to the passage?A. It comes from sunlight.B. It doesn’t help people live longer.C. Sunlight prevents its production.D. It has a good effect on health.第二节、阅读填句根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。