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.(13分)△ABC的内角A,B,C的对边分别为a,b,c,已知csin Acos B=asin Bsin C.(1)求角B:(2)若a=3,△ABC的面积为号，求6，16.(15分)已知函数ftx-x3+7a-3)x2-ar+4(1)当&6时，求f(x)的极值：(2)讨论f(x)的单调性17.(15分)设数列(an的0n项和为Sn,对于任意的n∈N”,an+1=an十3瓦成立，且S,=ag(1)求{am}的通项公式；(2)若b,=[loga,1貸中[x]是高斯函数，表示不走对x的最大整数，如[log2]=0,[1og10]=2,求数列{bn}的前200项和T0.【高三数学第3页（共4页）】

1-5 BBBCB6-10 CABAB二八11-15 CDAAC16-20 BDBAA三、21-25 BCDAD。26-30 AADCA31-35 BFADE四、36.join37.s038.playing39.friends40.laughter41.fun42.usually43.like44.regret45.me五、46.Linda is from America.47.She is making dumplings.48.They can eat dumplings tomorrow morning49.Linda's father's friends,Uncle Zhang and Aunt Li,may have dinner with Linda's family thisevening.50.Linda's aunt buys a blue coat for Lily.

1-5 BBBCB6-10 CABAB二八11-15 CDAAC16-20 BDBAA三、21-25 BCDAD。26-30 AADCA31-35 BFADE四、36.join37.s038.playing39.friends40.laughter41.fun42.usually43.like44.regret45.me五、46.Linda is from America.47.She is making dumplings.48.They can eat dumplings tomorrow morning49.Linda's father's friends,Uncle Zhang and Aunt Li,may have dinner with Linda's family thisevening.50.Linda's aunt buys a blue coat for Lily.

第9期A1版Keys:(One possible version)封面故事1.In the Olympic Forest Park.2.Itstarted in 2021.八年级（上）Uit6基础能力训练听力原文及参考答案听力原文第一节听下面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。每段对话仅读一遍。1.W:What do you want to be after you finish college,Larry?M:You know,I like playing soccer,so I want to be a soccer player.However,my mother wantsme to be a teacher and my father wants me to be a doctor.2.W:Lisa wants to be a singer and Dick wants to be an engineer.What about you,Jack?M:I want to be a musician..3.M:I'm going to watch the singing competition with Helen.Would you like to go with us,Nina?W:I'd like to,but I have to help Sam with his math.4.W:What are you going to do next year,Matt?M:I'm going to take cooking lessons to make my dream come true.5.W:I'm going to make more friends in the new year.M:That's great.I'm going to improve my English by joining an English club.第二节听下面3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，你有时间阅读各小题，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。听下面一段对话，回答第6至第7两个小题。M:What do you want to be when you grow up,Mary?W:I want to be an actress.How about you,Jack?M:I'm not sure.I'm good at using the computer.I may try to be a computer programmer.W:It's a popular job!How are you going to do that?M:I'm going to study computer science in a good college.W:I hope your dream can come true.

第9期A1版Keys:(One possible version)封面故事1.In the Olympic Forest Park.2.Itstarted in 2021.八年级（上）Uit6基础能力训练听力原文及参考答案听力原文第一节听下面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。每段对话仅读一遍。1.W:What do you want to be after you finish college,Larry?M:You know,I like playing soccer,so I want to be a soccer player.However,my mother wantsme to be a teacher and my father wants me to be a doctor.2.W:Lisa wants to be a singer and Dick wants to be an engineer.What about you,Jack?M:I want to be a musician..3.M:I'm going to watch the singing competition with Helen.Would you like to go with us,Nina?W:I'd like to,but I have to help Sam with his math.4.W:What are you going to do next year,Matt?M:I'm going to take cooking lessons to make my dream come true.5.W:I'm going to make more friends in the new year.M:That's great.I'm going to improve my English by joining an English club.第二节听下面3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，你有时间阅读各小题，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。听下面一段对话，回答第6至第7两个小题。M:What do you want to be when you grow up,Mary?W:I want to be an actress.How about you,Jack?M:I'm not sure.I'm good at using the computer.I may try to be a computer programmer.W:It's a popular job!How are you going to do that?M:I'm going to study computer science in a good college.W:I hope your dream can come true.

第9期A1版Keys:(One possible version)封面故事1.In the Olympic Forest Park.2.Itstarted in 2021.八年级（上）Uit6基础能力训练听力原文及参考答案听力原文第一节听下面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。每段对话仅读一遍。1.W:What do you want to be after you finish college,Larry?M:You know,I like playing soccer,so I want to be a soccer player.However,my mother wantsme to be a teacher and my father wants me to be a doctor.2.W:Lisa wants to be a singer and Dick wants to be an engineer.What about you,Jack?M:I want to be a musician..3.M:I'm going to watch the singing competition with Helen.Would you like to go with us,Nina?W:I'd like to,but I have to help Sam with his math.4.W:What are you going to do next year,Matt?M:I'm going to take cooking lessons to make my dream come true.5.W:I'm going to make more friends in the new year.M:That's great.I'm going to improve my English by joining an English club.第二节听下面3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，你有时间阅读各小题，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。听下面一段对话，回答第6至第7两个小题。M:What do you want to be when you grow up,Mary?W:I want to be an actress.How about you,Jack?M:I'm not sure.I'm good at using the computer.I may try to be a computer programmer.W:It's a popular job!How are you going to do that?M:I'm going to study computer science in a good college.W:I hope your dream can come true.

第9期A1版Keys:(One possible version)封面故事1.In the Olympic Forest Park.2.Itstarted in 2021.八年级（上）Uit6基础能力训练听力原文及参考答案听力原文第一节听下面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。每段对话仅读一遍。1.W:What do you want to be after you finish college,Larry?M:You know,I like playing soccer,so I want to be a soccer player.However,my mother wantsme to be a teacher and my father wants me to be a doctor.2.W:Lisa wants to be a singer and Dick wants to be an engineer.What about you,Jack?M:I want to be a musician..3.M:I'm going to watch the singing competition with Helen.Would you like to go with us,Nina?W:I'd like to,but I have to help Sam with his math.4.W:What are you going to do next year,Matt?M:I'm going to take cooking lessons to make my dream come true.5.W:I'm going to make more friends in the new year.M:That's great.I'm going to improve my English by joining an English club.第二节听下面3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，你有时间阅读各小题，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。听下面一段对话，回答第6至第7两个小题。M:What do you want to be when you grow up,Mary?W:I want to be an actress.How about you,Jack?M:I'm not sure.I'm good at using the computer.I may try to be a computer programmer.W:It's a popular job!How are you going to do that?M:I'm going to study computer science in a good college.W:I hope your dream can come true.

第9期A1版Keys:(One possible version)封面故事1.In the Olympic Forest Park.2.Itstarted in 2021.八年级（上）Uit6基础能力训练听力原文及参考答案听力原文第一节听下面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。每段对话仅读一遍。1.W:What do you want to be after you finish college,Larry?M:You know,I like playing soccer,so I want to be a soccer player.However,my mother wantsme to be a teacher and my father wants me to be a doctor.2.W:Lisa wants to be a singer and Dick wants to be an engineer.What about you,Jack?M:I want to be a musician..3.M:I'm going to watch the singing competition with Helen.Would you like to go with us,Nina?W:I'd like to,but I have to help Sam with his math.4.W:What are you going to do next year,Matt?M:I'm going to take cooking lessons to make my dream come true.5.W:I'm going to make more friends in the new year.M:That's great.I'm going to improve my English by joining an English club.第二节听下面3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，你有时间阅读各小题，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。听下面一段对话，回答第6至第7两个小题。M:What do you want to be when you grow up,Mary?W:I want to be an actress.How about you,Jack?M:I'm not sure.I'm good at using the computer.I may try to be a computer programmer.W:It's a popular job!How are you going to do that?M:I'm going to study computer science in a good college.W:I hope your dream can come true.

1、河北省2024-2025学年第一学期九年级教学质量检测二数学答案1、河北省2024-2025学年第一学期七年级教学质量检测二数学答案1、河北省2024-2025学年第一学期七年级教学质量检测二历史答案12、明思·安徽省2024-2025学年第一学期七年级教学质量检测一生物试题1、安徽省凤台片区2023-2024学年度第一学期八年级期末教学质量检测(试题卷)数学试题1、安徽省凤台片区2023-2024学年度第一学期九年级期末教学质量检测(试3、明思教育·河北省2024-2025学年度第一学期七年级教学质量检测二历史答案1、明思教育·2024-2025学年度第一学期教学质量检测二历史试题1、金太阳卓越联盟2024-2025学年高二第一学期第一次月考(25-60B)理数答案

1、陕西省2024-2025学年上学期七年级教学质量监测A♡地理答案5.丁岛的位置可能是A.20°N,119°EB.37°N，121°EC.20°N,121°ED.37°N,119°E6.下午小明去往的岛屿最可能是A.甲岛B.乙岛C.丙岛D.丁岛新西兰由南北二岛组成，2、河北省2024-2025学年第一学期七年级教学质量检测二数学答案1、河北省2024-2025学年第一学期七年级教学质量检测二历史答案1、河北省2024-2025学年第一学期七年级教学质量检测二地理试题13、吉林省2024-2025学年名校调研系列·七年级（上）期中质量评估测试卷B生物试题1、优高联考 山东省德州市2025届高三开学考(2024.9)数学试题1、[百师联盟]2024届高三开年摸底联考历史(湖北卷)答案1、吉林4、明思·安徽省2024-2025学年第一学期七年级教学质量检测一语文答案（二）古代诗歌阅读（本题共2小题，9分）阅读下面这首诗，完成15～16小题。早秋山中作①王维无才不敢累明时，思向东溪守故篱。岂厌尚②婚嫁早，却嫌陶令去官迟。草间蛋③响临秋急，山里蝉声薄暮悲。寂寞柴门5、[山东省]2024年7月济南市高一期末学质量检测物理答案1、[陕西省]2023-2024学年高三期末质量监测考试(24-241C)英语答案1、陕西省2023-2024学年度下学期学业水检测模拟(一)1试题(历史)