最新富源县第六中学高二上学期期中考试试卷汇编

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富源县第六中学高二上学期期中考试试卷

富源县第六中学高二上学期期中考试试卷

富源县第六中学高二上学期期中考试英语试题第Ⅰ卷第一部分: 听力 (共两节,满分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。

每段对话仅读一遍。

1.How did the man get there?A. By busB. On footC. By car2.What will the speakers do tomorrow?A. Stay with their childrenB. Go to a partyC. Visit the woman’s mother3.What did the woman do last night?A. She went to a lectureB. She went to hospitalC. She stayed at home4.Why is the man going to the States?A. For a holidayB. To studyC. On business5.What did Sally do last Sunday?A. She went on a picnicB. She went to the zooC. She stayed at home笫二节(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.Where doe the conversation most probably take place?A. On the streetB. In a shopC. In a repair shop7.How much will the man be charged if he returns the MP4 player?A. 10%of the priceB. 30%of the priceC. no charge听第7段材料,回答第8、9题8.Why does the man want to speak to Jack?A. To tell him not to come to the partyB. To ask him to call backC. To ask him to go out for some fun9.What is Wang Li’s home phone number?A. 897--6732B. 866--7015C. 826--7015听第八段材料回答第10至12题10.What does the man want the woman to do?A. To buy him a ticket for the football gameB. To go with him to the football gameC. To tell him the way to the football stadium11.What advice does the woman give the man?A. To leave for the stadium earlyB. To buy the ticket earlyC. To listen to the radio12.Where is the football stadium?A. On the main streetB. Near a restaurant called Fanny’sC. Near the woman’s house听第9段材料,回答第13至16题13.Why is the woman moving?A. To find a nicer place to liveB. To share a flat with her friendC. To get a better job14.Who is Champ?A. The woman’s brotherB. The woman’s sonC. The woman’s dog15.Who is going to take care of Champ?A. The womanB. The manC. Betty16.What does the woman think of her life in Shanghai?A. She’s worried about itB. She will enjoy herselfC. She will be lonely there听第10段材料,回答第17至20题17.What is the talk mainly about?A. The culture of Hong KongB. The languages spoken in Hong KongC. The history of Hong Kong18.In which language are the road signs in Hong Kong printed?A. ChineseB. EnglishC. Chinese and English19.What was the official language of Hong Kong in 1970?A. ChineseB. EnglishC. Chinese and English20.How many Japanese people are living in Hong Kong?A. About 20,000B. About 2,500C. About 25,000第二部分:阅读理解(共两节,满分40分)第一节.(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。

云南省富源县第六中学2023年生物高二第一学期期末调研试题含解析

云南省富源县第六中学2023年生物高二第一学期期末调研试题含解析

云南省富源县第六中学2023年生物高二第一学期期末调研试题注意事项: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.回答选择题时,选出每小题答案后,用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,再选涂其它答案标号。

回答非选择题时,将答案写在答题卡上,写在本试卷上无效。

3.考试结束后,将本试卷和答题卡一并交回。

一、选择题(本大题共7小题,每小题6分,共42分。

)1.生态系统的组成成分包括生产者、消费者、分解者及非生物的物质和能量。

下列关于生态系统组成成分的叙述,正确的是()A.动物都属于消费者,其中食草动物属于第二营养级B.细菌都属于分解者,其异化作用类型主要是需氧型和厌氧型C.生产者属于自养型生物,是生态系统中最基本、最关键的生物成分D.一种生物只能属于生态系统中的一种生物成分2.某课题组研究了生长素类似物对微型月季生根和侧芽生长的影响,结果如下图所示。

图1为不同浓度生长素类似物对微型月季插条生根数的影响,图2为X、Y和Z三种浓度下对微型月季茎段侧芽生长的影响。

下列有关叙述正确的是()A.图1结果说明了生长素类似物既能促进插条生根,也能抑制生根B.促进微型月季插条生根的最适生长素类似物浓度是10μmoL/L>>C.图2中X浓度、Y浓度和Z浓度之间的大小关系是X Y ZD.X浓度的生长素类似物对微型月季茎段侧芽生长具有抑制作用3.欲研究甲状腺和甲状腺激素的生理作用,对小鼠的分组及处理见下表,并在适宜条件下正常饲养,每隔一定时间测定耗氧量,记录数据,统计分析。

下列分析错误的是()组别甲组乙组丙组对照处理切除甲状腺手术但不切除甲状腺灌胃甲状腺激素,1次/天饲养条件相同且适宜,正常饲料喂养,共14天A.采用生长发育状况相同的小鼠进行实验属于实验中控制无关变量的操作B.甲组小鼠体内促甲状腺激素释放激素和促甲状腺激素含量均高于乙组C.采用耗氧量为观测指标,依据是甲状腺激素能提高神经系统兴奋性D.实验结束时,测定小鼠的耗氧量大小关系为:丙组>乙组>甲组4.下列关于实验“土壤中小动物类群丰富度的研究”的说法中,不正确的是()A.为了调查不同时间土壤中小动物丰富度,可分别在白天和晚上取同一地块的土样B.对于无法知道名称的小动物,不可忽略,应记录下它们的特征C.利用小动物的避光避热性,收集样土中的小动物可采用带灯罩的热光源D.许多土壤小动物有较强的活动能力,可采用标志重捕法调查土壤小动物类群丰富度5.某地通过新建沼气池和植树造林,构建了新型农业生态系统(如下图所示)下列关于该生态模式的叙述不正确的是()A.沼气池的建造和植树造林,提高了该生态系统的稳定性B.实现了物质在生态系统中的多级循环利用C.该生态系统的建立,提高了各营养级间的能量传递效率D.整个生产过程进入了废物资源化的良性循环6.下图为毒品可卡因对人脑神经冲动的传递干扰示意图,下列叙述正确的是A.多巴胺与②结合后继续进入下—个神经元中才能导致其兴奋B.多巴胺是—种神经递质,其被释放到突触间隙内的方式不消耗能量C.正常情况下,多巴胺作用于突触后膜后被回收到突触前膜内或被分解D.可卡因导致多巴胺在突触间隙内增多的原因是其促进突触前膜的分泌7.下丘脑在人体生命活动中具有重要作用,下列分析正确的是()A.下丘脑参与升血糖的调节过程是激素调节B.下丘脑的神经细胞兼有内分泌的作用C.下丘脑可分泌促性腺激素和促甲状腺激素D.下丘脑对垂体不具有调节作用8.(10分)在寒冷的环境中,人体不会出现的生理反应是()A.皮肤毛细血管舒张B.细胞代谢速率加快C.汗腺分泌减少D.肝脏产热增加二、非选择题9.(10分)下图是某水库生态系统结构简图,回答下列问题:(1)该生态系统的基石是__________。

(整理版高中英语)六中上学期高二期中考试英语试卷

(整理版高中英语)六中上学期高二期中考试英语试卷

六中—上学期高二期中考试英语试卷本试卷分第一卷和第二卷两局部。

总分值150分考试时间120分钟2011/10/25 本试卷共11页。

第一卷I.听力理解〔共两节,总分值20分〕第一节〔共5小题;每题1分,总分值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三个选项中选出最正确选项,并标在试卷的相应位置。

听完每段对话后,你都有10秒钟的时间来答复有关小题和阅读下一小题。

每段对话仅读一遍。

1.Who got the wrong number?A. Jack.B. The woman.C. Lucia.2. What will the woman probably do?A. Water the plants.B. Wash the car.C. Pack her luggage.3. When is Justin leaving for Edinburgh?A. On Friday.B. On Saturday.C. On Sunday.4. What is Bill’s trouble according to the woman?A. He neglects his duty as a pupil.B. He is not imaginative at all.C. He always has terrible dreams.5. Why couldn’t the man get the tickets?A. He forgot to get them.B. The tickets had been sold out.C. The tickets office has closed.第二节〔共15小题;每题1分,总分值15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三个选项中选出最正确选项,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,每题5秒钟;听完后,各小题将给出5秒钟的作答时间。

2021-2022学年辽宁省六校高二(上)期中物理试卷-附答案详解

2021-2022学年辽宁省六校高二(上)期中物理试卷-附答案详解

2021-2022学年辽宁省六校高二(上)期中物理试卷一、单选题(本大题共8小题,共32.0分)1. 安培提出了著名的分子电流假说,根据这一假说,电子绕核运动可等效为一环形电流。

设氢原子核外电子以速率v 绕原子核做半径为r 的匀速圆周运动,已知电子电荷量为e 。

其形成环形电流的大小为( )A. veπrB. ve2πrC. verD. ve2r2. 在地球赤道上进行实验时,用磁传感器测得赤道上P 点地磁场的磁感应强度大小为B 0.将一条形磁铁固定在P 点附近的水平面上,让N 极指向正北方向,如图所示,此时用磁传感器测得P 点的磁感应强度大小为B 1;现将条形磁铁以P 点为轴旋转90°,使其N 极指向正东方向,此时用磁传感器测得P 点的磁感应强度大小应为(可认为地磁南、北极与地理北、南极重合)( )A. B 1−B 0B. B 1+B 2C. √B 02−B 12 D. √2B 02+B 12−2B 0B 13. 如图示,AB 是水平面上一个圆的直径,在过AB 的竖直平面内有一根通电导线CD ,已知CD//AB.当CD 竖直向上平移时,电流磁场穿过圆面积的磁通量将( )A. 逐渐增大B. 逐渐减小C. 始终为0D. 不为0但保持不变4. 在如图所示电路中,闭合开关S ,当滑动变阻器的滑动触头P 向下滑动时,四个理想电表的示数都发生变化,电表的示数分别用I 、U 1、U 2和U 3表示,电表示数变化量的大小分别用ΔI 、ΔU 1、ΔU 2和ΔU 3表示。

下列判断正确的是( )A. |ΔU1|<|ΔU2|,|ΔU2|>|ΔU3|B. U1I 不变,ΔU1ΔI变小C. U2I 变大,ΔU2ΔI变大 D. U3I变大,ΔU3ΔI变大5.如图所示,其中电流表A的量程为0.6A,表盘均匀划分为30个小格,每一小格表示0.02A;R1的阻值等于电流表内阻的12;R2的阻值等于电流表内阻的2倍。

云南省富源县第六中学2024届物理高一上期中调研试题含解析

云南省富源县第六中学2024届物理高一上期中调研试题含解析

云南省富源县第六中学2024届物理高一上期中调研试题考生请注意:1.答题前请将考场、试室号、座位号、考生号、姓名写在试卷密封线内,不得在试卷上作任何标记。

2.第一部分选择题每小题选出答案后,需将答案写在试卷指定的括号内,第二部分非选择题答案写在试卷题目指定的位置上。

3.考生必须保证答题卡的整洁。

考试结束后,请将本试卷和答题卡一并交回。

一、选择题:(1-6题为单选题7-12为多选,每题4分,漏选得2分,错选和不选得零分)1、以下说法正确的是( )A.速度是矢量B.“一节课40分钟”中40分钟指的是下课的时刻C.只有很小的物体才能视为质点D.研究物体运动时,只能以地面为参考系2、作匀加速直线运动的物体,加速度是2米/秒2,它意味着:( )A.物体在任一秒末的速度是该秒初的两倍。

B.物体在任一秒末的速度比该秒初的速度大2米/秒。

C.物体在第一秒末的速度为2米/秒。

D.物体任一秒初速度比前一秒的末速度大2米/秒。

3、汽车从车站由静止出发沿直线行驶500s,速度达到20m/s.其运动过程的速度-时间图像如图所示,则在这段时间里关于汽车运动的下列说法中正确的()A.汽车运动的加速度越来越大B.汽车的加速度方向与速度方向相同C.汽车在500s内的位移有可能为5000mD.汽车在500s内的平均速度不小于10m/s4、在交警处理某次交通事故时,通过监控仪器扫描,输入计算机后得到该汽车在水平路面上刹车过程中的位移随时间变化的规律为:x=20t-2t2(x的单位是m,t的单位是s)。

则该汽车在路面上留下的刹车痕迹长度约为( ) A.25m B.50m C.100m D.200 m5、A物体自高为H的塔顶自由下落的同时,B物体自塔底以初速度竖直上抛,B物体上升至最高点时,A物体正好落地,则下面说法中正确的是()A.A物体落地时速度小于B.B物体上升的最大高度高于HC.两物体相遇时离地面的高度为H/4D.两物体相遇时,A、B两物体的速度大小均为6、关于物理学上对自由落体运动的研究,下列说法错误的是()A.古希腊亚力士多德认为物体下落的快慢由他们的重量决定,伽利略在他的《两种新科学的对话》中利用逻辑推理,使亚里士多德的理论陷入了困境B.平均速度、瞬时速度、加速度的概念是由牛顿首先建立起来的C.伽利略在验证自由落体运动中速度与时间成正比时,最大的困难在于不能测量时间D.伽利略首先把实验和逻辑推理和谐地结合起来,开创了一套对近代科学的发展极为有益的科学方法7、月球上没有空气,若宇航员在月球上将羽毛和石块从同一高度处同时由静止释放,则它们在下落时()A.石块先落地B.它们同时落地C.它们下落的加速度相同D.石块落地的速度大8、物理学在研究实际问题时,常常进行行科学抽象,即抓住研究问题的主要特征,不考虑与当前研究问题无关或影响较小的因素,建立理想化模型.下列各对象是物理学中的理想化模型的有A.质点B.光滑水平面C.位移D.加速度9、如图所示是一个物体运动的速度—时间图像。

2025届云南省富源县第六中学高一化学第一学期期中学业质量监测模拟试题含解析

2025届云南省富源县第六中学高一化学第一学期期中学业质量监测模拟试题含解析

2025届云南省富源县第六中学高一化学第一学期期中学业质量监测模拟试题注意事项:1.答题前,考生先将自己的姓名、准考证号填写清楚,将条形码准确粘贴在考生信息条形码粘贴区。

2.选择题必须使用2B铅笔填涂;非选择题必须使用0.5毫米黑色字迹的签字笔书写,字体工整、笔迹清楚。

3.请按照题号顺序在各题目的答题区域内作答,超出答题区域书写的答案无效;在草稿纸、试题卷上答题无效。

4.保持卡面清洁,不要折叠,不要弄破、弄皱,不准使用涂改液、修正带、刮纸刀。

一、选择题(共包括22个小题。

每小题均只有一个符合题意的选项)1、我国科学家在兰州成功地制备出过去一直依赖进口、比黄金贵百倍的氧-18气体(又称重氧),18O与16O的关系不正确的是A.同种原子B.同种元素C.含有相同的质子数D.同位素2、下列实验方案中,能鉴别固体Na2CO3和NaHCO3的是A.分别进行焰色试验,观察火焰的颜色B.取少量固体分别装入试管后充分加热,称量反应前后质量变化C.取少量固体分别加入足量的稀硫酸中,观察是否有气体生成D.取少量固体分别加水溶解后,滴入澄清石灰水,观察是否有沉淀生成3、下列关于2 mol氧气的叙述中,正确的是A.质量是32 g B.体积是44.8 LC.分子数约为1.204×1024D.原子数是2 mol4、一定由三种元素组成的是()A.氧化物B.碱C.酸D.盐5、下列属于非电解质的是A.氨气B.碳酸钾C.盐酸D.氯气6、下列各组混合物可用分液漏斗分离的一组是( )A.水和酒精B.碘和四氯化碳C.NaCl溶液和泥沙D.汽油和水7、下列离子方程式,正确的是( )A.氢氧化铁与盐酸反应:H++OH-= H2OB.过量NaHSO4溶液与少量Ba(OH)2溶液反应:2H++SO42-+Ba2++2OH-= BaSO4↓+2H2OC.铁与盐酸反应:2Fe+6H+= 2Fe3++3H2↑D.CaCO3溶于稀盐酸中:CO32-+2H+= CO2↑+H2O8、下列反应属于离子反应的是A .H 2和O 2反应生成水B .锌片投入稀硫酸中C .双氧水(H 2O 2)分解制取O 2D .高炉炼铁9、用碳酸钠晶体(Na 2CO 3∙10H 2O )配制 0.1mol/L 的碳酸钠溶液,正确的方法是A .称量 10.6g 碳酸钠晶体,溶解在 1L 水中B .称量 28.6g 碳酸钠晶体,溶解在 1L 水中C .称量 14.3g 碳酸钠晶体,溶解在适量水中,然后在容量瓶中加水到 1LD .称量 14.3g 碳酸钠晶体,溶解在适量水中,然后在容量瓶中加水到 500mL10、下列各组溶液中的Cl -的物质的量浓度相等的是A .15 mL 0.1 mol/L 的MgCl 2溶液和15 mL 0.2 mol/L 的KClO 3溶液B .10 mL 0.2 mol/L 的NH 4Cl 溶液和5 mL 0.2 mol/L 的FeCl 2溶液C .5 mL 0.2 mol/L 的CaCl 2溶液和20 mL 0.1mol/L 的KCl 溶液D .5 mL 0.1 mol/L 的AlCl 3溶液和15 mL 0.3 mol/L 的NaCl 溶液11、如表是某矿物质饮用水的部分标签,则说明该饮用水中还可能较大量存在的是A .OH -B .Ag +C .Na +D .Ca 2+12、下列物质在水溶液中电离,电离方程式错误的是( )A .NaHSO 4=Na ++H ++24SO -B .Mg(NO 3)2=Mg 2++23NO -C .NaHCO 3=Na ++H ++23CO -D .Na 2SO 4=2Na ++24SO - 13、 “绿色化学实验”进课堂,某化学教师为“氯气与金属钠反应”设计了如图所示装置与操作以替代相关的课本实验操作:先给钠预热,到钠熔融成圆球时,撤火,通入氯气,即可见钠着火燃烧,并产生大量白烟。

最新高二文科数学试卷汇编

最新高二文科数学试卷汇编

绝密★启用前富源县第六中学2014—2015学年高二上学期期中考试文科数学试题(试卷满分:150分 考试时间:120分钟 所有答案必须答在答题卡上) (命题:赵甫 审题:陆正刚) 一、选择题:(本大题共12小题,每小题5分,共60分.) 1.设{}02|M R U 2>-==x x x ,,则M U C =( ).A .[]2,0B .()2,0C .()()+∞∞-,20,D .[][]∞+∞-,,002. 已知),,2(,54sin ππαα∈=那么=αtan ( ). A .34- B .43- C .43 D .343.已知向量),1,2(),2,1(=-=→→b x a 则→→⊥b a 的充要条件是( ).A .21-=x B .1-=x C .5=x D .0=x4.如图是一个程序框图,若开始输入的数字为10=t ,则输出的结果是( )A .20B .50C .140D .1505.边长为1的正方形ABCD 内运动,则动点P 到顶点A 的距离|PA|≤1的概率为( ).A .41 B .21 C .4πD .π 6.已知命题,10002,:>∈∃nN n p 则p ⌝为( )A .10002,≤∈∀nN n B .10002,>∈∀nN n C .10002,≤∈∃nN n D .10002,<∈∃nN n7.若y x ,满足约束条件⎪⎩⎪⎨⎧≥≤+≥+03232x y x y x ,则y x z -=的最小值是( )A .3-B .0C .23D .3 8.函数xx x f ⎪⎭⎫⎝⎛-=21)(21的零点个数为( ).A .0B .1C .2D .3 9.抛物线21x ay =()0≠a 的焦点坐标是( ). A .)4,0(a 或)4,0(a - B .)41,0(a 或)41,0(a - C .)4,0(a D .)41,0(a10.已知数列{}n a 的前n 项和为n S 112,1+==n n a S a ,则n a =( ).A .12-n B . 123-⎪⎭⎫ ⎝⎛n C . 132-⎪⎭⎫⎝⎛n D .121-n11.曲线12222=-by a x 的焦点到渐近线的距离等于实轴的长,则该双曲线的离心率为( ).A .2B .3C .2D .512.已知各顶点都在一个球面上的长方体高为4,体积为16,则这个球的表面积为( ).A .π16 B .π20 C .π24 D .π30二、填空题:(本大题共4小题,每小题5分,共20分.) 13.已知函数)sin()(ϕω+=x x f )0(>ω的图象如图所示,则ω= . 14.下图是某个几何体的三视图,其中正视图是等边三角形,侧视图是直角三角形,俯视图是等腰直角三角形,则该几何体的体积等于 .15.设向量)1,2(-=→a ,向量→b 与向量→a 共线且同向,52=→b ,则=→b .16.已知F 是抛物线x y =2的焦点,B A 、是抛物线上的两点,3=+BF AF ,则线段AB 的中点到y 轴的距离是 . 三、解答题:(本大题共6小题,第17题10分,其余每题12分,共70分.) 17.在ABC ∆中,c b a 、、分别是内角A B C 、、的对边,满足C b A a B C b c sin sin )sin )(sin (+=++(Ⅰ)求A 的大小;(Ⅱ)若ABC ∆的面积3S A BC =∆,a =b c 、的值.18.如图,棱锥ABCD P -的底面ABCD 是矩形,ABCD PA 平面⊥,2==AD PA ,22=BD . (Ⅰ)求证:PAC BD 平面⊥; (Ⅱ)求点C 到平面PBD 的距离.19.设双曲线C :12222=-by a x )00(>>b a ,的一个焦点坐标为()0,3-,离心率3=e ,B A 、是双曲线上的两点,线段AB 的中点()2,1M .(Ⅰ)求双曲线C 的方程;(Ⅱ)求直线AB 方程.20.某车间为了规定工时定额,需要确定加工零件所花费的时间,为此作四次试验,得到的数据如下:(Ⅰ)已知零件个数与加工时间线性相关,求出y 关于x 的线性回归方程; (Ⅱ)试预测加工10个零件需要多少时间.21.18.年龄在60岁(含60岁)以上的人称为老龄人,某小区的老龄人有350人, 他们的健康状况如下表:其中健康指数的含义是:2代表“健康”,1代表“基本健康”,0代表“不健康,但生活能够自理”,1-代表“生活不能自理”.(Ⅰ)随机访问该小区一位80岁以下的老龄人,该老人生活能够自理的概率是多少?(Ⅱ)按健康指数大于0和不大于0进行分层抽样,从该小区的老龄人中抽取5位,并随机地访问其中的3位.求被访问的3位老龄人中恰有1位老龄人的健康指数不大于0的概率.22.已知椭圆1G 2222=+b y a x ;)00(>>b a ,过点⎪⎪⎭⎫⎝⎛36,1A 和点()1,0-B . (Ⅰ)求椭圆G 的方程;(Ⅱ)设过点⎪⎭⎫ ⎝⎛23,0P 的直线l 与椭圆G 交于N 、M 两点,且BN BM =,求直线l 的方程. 参考答案 一.选择题DB ACP1-5AADCC 6-10ADBCB 11-12DC 二. 填空题13. 23 14. 33 15. )24-,( 16.45 三.解答题17. 【解析】(Ⅰ)()(sin sin )sin sin c b C B a A b C ++=+,利用正弦定理得2()()c b c b a cb ++=+,化简bc c b a ++=222,由余弦定理得:A bc c b a cos 2222-+=,︒6分(Ⅱ)1sin 2ABC S bc A ∆==sin 2A =, 4.bc ∴= 又2222cos ,a b c bc A =+-即2212=.b c bc ++由22412bc b c bc=⎧⎨=++⎩得2, 2.b c ==18.【解析】(Ⅰ)证明:四边形ABCD 是矩形,2,AD BD ==2AB ∴=,四边形ABCD 是正方形.BD AC ∴⊥.又PA ⊥底面ABCD ,BD ⊂底面ABCD ,BD PA ∴⊥.又AC PA=A ,AC ⊂平面PAC ,PA ⊂平面PAC .BD ∴⊥平面PAC .(Ⅱ)设点C 到平面PBD 的距离为h.由题意得:.PBD∴∆是等边三角形,PBD 1S =sin 602∆⨯︒=三棱锥C-PBD 的体积C-PBD PBD 1V =S 3h ∆=. 又C-PBD P-BCD 114V =V =222=323⨯⨯⨯⨯.43=,h =19.【解析】1a =. 所以222312b c a=-=-=,故双曲线C(Ⅱ)设1122(,),(,)A x y B x y ,则有, 由题意得12x x ≠,221=+x x ,421=+y y , ,即1=AB k .故直线AB 的方程为1y x =+.20.健康指数不大于0的老龄人共有70人,由分层抽样可知,被抽取的5位老龄人中有4位健康指数大于0,有1位健康指数不大于0.设被抽取的4位健康指数大于0的老龄人为1,2,3,4, 健康指数不大于0的老龄人为B .从这五人中抽取3人,结果有10种:21【解析】(Ⅰ)由表中数据得 3.5x =4421152.5,54i ii i i x yx =-==∑∑由于x 与y 之间具有线性相关关系,根据公式知05.1ˆˆ7.05.34545.35.345.52ˆ21221=-==⨯-⨯⨯-=--=∑∑==x b y ax n xyx n yx bni ini ii ,∴回归直线方程为:0.7 1.05y x =+.(Ⅱ)将10x =代入回归直线方程得,0.710 1.058.05y =⨯+=.∴预测加工10个零件需要8.05小时.22【解析】(Ⅰ)因为椭圆)0,0(1:2222>>=+b a b y a x G 过点⎪⎪⎭⎫ ⎝⎛36,1A 和点()1,0-B . 所以1=b ,由1135122=⎪⎪⎭⎫⎝⎛+a,得 32=a .所以椭圆G 的方程为1322=+y x . (Ⅱ)显然直线l 的斜率k 存在,且0≠k .设直线l 的方程为23+=kx y .由 223213y kx x y ⎧=+⎪⎪⎨⎪+=⎪⎩,去y 并整理得0453)31(22=+++kx x k , 由0315922>⎪⎭⎫ ⎝⎛+-=∆k k ,1252>k .设),(11y x M ,),(22y x N ,MN 中点为()00,Q x y , 得12029262x x k x k +==-+,12023262y y y k +==+ 由BN BM =,知MNH BQ ⊥,所以0011y k x +⋅=-,即223162162k k k ++⋅=--+.化简得 322=k ,满足0>∆.所以36±=k 因此直线l 的方程为3236+±=x y。

2025届云南省富源县第六中学化学高二第一学期期中经典模拟试题含解析

2025届云南省富源县第六中学化学高二第一学期期中经典模拟试题含解析

2025届云南省富源县第六中学化学高二第一学期期中经典模拟试题请考生注意:1.请用2B铅笔将选择题答案涂填在答题纸相应位置上,请用0.5毫米及以上黑色字迹的钢笔或签字笔将主观题的答案写在答题纸相应的答题区内。

写在试题卷、草稿纸上均无效。

2.答题前,认真阅读答题纸上的《注意事项》,按规定答题。

一、选择题(每题只有一个选项符合题意)1、美国圣路易斯大学研制了一种新型的乙醇电池,其反应为:C2H5OH+3O2→ 2CO2+3H2O,电池示意如右图,下列说法正确的是A.a极为电池的正极B.b极发生氧化反应C.负极的反应为:4H++O2+4e-=2H2OD.电池工作时,1mol乙醇被氧化时有12mol电子转移2、硫原子与氯原子半径的比较中合理的是A.小于B.等于C.大于D.无法比较3、关于反应方程式Cl2 + 2I- = 2Cl- + I2,说法不正确...的是A.Cl2是氧化剂B.I2是还原产物C.上述反应属于置换反应D.上述反应属于离子反应4、一定条件下,在体积为10L的密闭容器中充入1mol X和1mol Y进行反应:2X(g)+Y(g)Z(g),60s后反应达到平衡,生成Z的物质的量为0.3mol。

下列说法正确的是A.X的平衡转化率为40%B.若将容器体积变为20L,则Z的平衡浓度小于原来的1 2C.若增大压强,则Y的平衡转化率减小D.若升高温度,X的体积分数增大,则该反应的ΔH>05、一氧化碳、烯烃和氢气在催化剂作用下发生烯烃的醛化反应,又称羰基的合成,如由乙烯可制丙醛:CH2=CH2+CO+H2CH3CH2CHO。

由丁烯进行醛化反应也可得到醛,得到的醛的种类为A.2种B.3种C.4种D.5种6、温度为T时,向2.0 L恒容密闭容器中充入1.0 mol PCl5,发生反应PCl5(g)PCl3(g)+Cl2(g),经过一段时间后达到平衡。

反应过程中测定的部分数据见下表,下列说法正确的是A.反应在前50 s 的平均速率ν(Cl2)= 0. 0032 mol·L-1·s-1B.保持其他条件不变,升高温度,平衡时c(PCl3)= 0. 13 mol·L-1,则反应的ΔH<0C.相同温度下,起始时向容器中充入1. 0 mol PCl5、0. 20 mol PCl3和0. 20 mol Cl2 ,反应达到平衡前ν(正)<ν(逆) D.相同温度下,起始时向容器中充入2. 0 mol PCl3和2. 0 mol Cl2 ,达到平衡时,PCl3的转化率大于80%7、在同一个原子中,M能层上的电子与Q能层上的电子的能量( )A.前者大于后者B.后者大于前者C.前者等于后者D.无法确定8、分子式为C8H8O2含有苯环且可与饱和NaHCO3溶液反应的有机物有( )A.1种B.3种C.4种D.5种9、下列说法中正确的是()A.苯和乙烷都能发生取代反应B.石油的分馏和煤的干馏都是化学变化C.工业上可通过石油分馏直接得到甲烷、乙烯和苯D.乙烯和聚乙烯都能使溴的四氯化碳溶液褪色10、根据下表中给出的有关数据,判断下列说法中错误的是()A.SiCl4是分子晶体B.晶体硼是原子晶体C.AlCl3是分子晶体,加热能升华D.金刚石中的C—C键比晶体硅中的Si—Si键弱11、已知化学反应X+Y=M+N为吸热反应,下列说法正确的是()A.X的能量一定低于M的,Y的能量一定低于N的B.因为该反应为吸热反应,所以一定要加热反应才能进行C.断裂反应物中的化学键吸收的能量小于形成生成物中的化学键放出的能量D.反应物X和Y的总能量一定小于生成物M和N的总能量12、下列化学用语表达正确的是A.氧的原子结构示意图:B.氯化钠溶于水的电离方程式:NaCl=Na++Cl-C.氯化氢的电子式:D.乙烯的分子式:CH2CH213、下列说法正确的是()A.将NaOH和氨水溶液各稀释一倍,两者的OH-浓度均减少到原来的一半B.盐酸的浓度是醋酸浓度的二倍,则盐酸的H+浓度也是醋酸的二倍C.中和等体积、等pH值的盐酸和醋酸溶液,醋酸所需氢氧化钠多于盐酸D.物质的量相同的磷酸钠溶液和磷酸溶液中所含磷酸根离子的量相同14、用铁块与0.1mol/L硫酸反应制取氢气,下列措施不能提高H2生成速率的是( )A.将铁块换为铁粉B.将0.1mol/L硫酸换为98%的硫酸C.适当加热D.向溶液中加入适量0.5mol/L盐酸15、下列叙述不正确的是A.甲苯分子中所有原子在同一平面上B.苯、乙酸、乙醇均能发生取代反应C.分子式为C4H9Cl的同分异构体共有4种(不考虑立体异构)D.可用溴的四氯化碳溶液鉴别乙烯和乙烷16、下列物质属于芳香烃,但不是苯的同系物的是()①②③④⑤⑥A.②③④⑤⑥B.①②⑤⑥C.③④D.②⑤二、非选择题(本题包括5小题)17、有机玻璃()因具有良好的性能而广泛应用于生产生活中。

(整理版)六中高二上学期期中考试数学(文)试题

(整理版)六中高二上学期期中考试数学(文)试题

省六中- 高二上学期期中考试数学〔文〕试题一、选择题〔本大题共12小题,每题5分,共60分.在每题给出的四个选项中,只有一项为哪项符合题目要求的.〕 1.“q p ∧〞为假,且“p ⌝〞为假,那么( ) A .p 或q 为假 B .q 假C .q 真D .不能判断q 的真假2.与“a >b 〞等价的不等式是〔 〕A .|a|>|b |B .a 2>b 2C .a 3>b 3D .ba>1 3.设x ,y ∈R ,那么“x ≥2且y ≥2”是“x+y ≥4”的 ( ) A .充分而不必要条件 B .必要而不充分条件 C .充分必要条件 D .既不充分也不必要条件4.在ABC ∆中,假设边长和内角满足1,45b c B ===,那么角C 的值是〔 〕 A .60 B.60或120 C .30 D .30或150p :∃n ∈N,2n >1000,那么非p 为( )A .∀n ∈N,2n≤1000 B .∀n ∈N,2n>1000 C .∃n ∈N,2n≤1000 D .∃n ∈N,2n<10006. 设变量x ,y 满足约束条件01030y x y x y ≥⎧⎪-+≥⎨⎪+-≤⎩,那么z =2x +y 的最大值为 ( )A.—2B. 4C. 6D. 8 7、以直线03=±y x 为渐进线,一个焦点坐标为)2,0(F 的双曲线方程是〔 〕A.1322=-y xB.1322=-y x C.1322-=-y x D.1322-=-y x 8. 第I 象限的点()P a b ,在直线210x y +-=上,那么11a b+的最小值为( )A.3+B.4+C.2+9.假设两个等差数列{a n }和{b n }的前n 项和分别是S n 和T n ,S n T n =7n n +3,那么a 5b 5=( )A .7 B.23 C.278 D.21410.在直角坐标平面内,点F 1(-4,0),F 2(4,0),动点M 满足条件:|MF 1|+|MF 2|=8,那么点M 的轨迹方程是( ).A .1 = 9+1622y xB .x =0C .y =0(-4≤x ≤4)D .1= 16+1622 y x11.双曲线1 = 4-922y x 与直线m x -y + 32=(m ∈R)的公共点的个数为( ).A .0B .1C .0或1D .0或1或212.经过椭圆1 = +522y x 的焦点且与其对称轴成45º的直线与椭圆交于A ,B 两点,那么|AB |=( ).A .352B .310C .25D .10第二卷〔非选择题,共90分〕二、填空题:本大题共4小题,每题5分,共20分. 把答案填写在答题卡相应位置上. “假设a =1,那么2a =1” 14.在等差数列{}n a 中,113a =,254a a +=,33m a =,那么m 为______________. C 过点()0,2-A ,且与圆()642:22=+-y x M 相内切,那么动圆C 的圆心的轨迹方程_____________;①“假设xy=0,那么x=0且y=0”②“正方形是菱形〞 ③“假设22,ac bc a b 则〞④假设“m>2,220xx m R 则不等式的解集为〞六中~ 度第一学期高二数学〔理〕《必修5》《选修2-1》模块学习学段检测试卷答题卡一、选择题〔本大题共12小题,每题5分,共60分.在每题给出的四个选项中,只有一项为哪项符合题目要求的.〕二、填空题:本大题共4小题,每题5分,共20分. 把答案填写在答题卡相应位置上. 13. 14. 15. 16.三、解答题:本大题共6小题,共70分.解容许写出文字说明,证明过程或演算步骤. 17. 〔此题总分值10分〕求双曲线14491622-=-y x 的焦点坐标,离心率和渐近线方程.18. 〔此题总分值12分〕ABC ∆的周长为12+,且C B A sin 2sin sin =+(I)求边AB 的长; (II)假设ABC ∆的面积为C sin 61,求角C 的度数.19.〔此题总分值12分〕等差数列{}n a 满足:37a =,5726a a +=,{}n a 的前n 项和为n S . (Ⅰ) 求n a 及n S ; (Ⅱ) 令211n n b a =-(*n ∈N ),求数列{}n b 的前n 项和n T .20.( 本小题12分〕p: 102≤≤-x ,q: ()001222>≤-+-m m x x ,假设p ⌝是q ⌝的必要不充分条件,求实数m 的取值范围.21.〔本小题总分值12分〕2()2f x x bx c =++,不等式()0f x <的解集是()0,5,(Ⅰ) 求()f x 的解析式;(Ⅱ) 假设对于任意[1,1]x ∈-,不等式()2f x t +≤恒成立,求t 的取值范围.22.〔本小题总分值12分〕椭圆的中心在原点,焦点在x,且经过点=+交椭圆于不同的两点A,B.M,直线:l y x m(4,1)〔1〕求椭圆的方程;〔2〕求m的取值范围;〔3〕假设直线l不过点M,求证:直线MA、MB与x轴围成一个等腰三角形.解:将方程14491622-=-y x 化为标准方程191622=-x y 得:3,4==b a ,5=c 焦点坐标:),),((5-05,0 离心率:45e =渐近线方程为:x y 34±=.19. 〔本小题总分值12分〕解:〔Ⅰ〕设等差数列{}n a 的公差为d ,因为37a =,5726a a +=,所以有112721026a d a d +=⎧⎨+=⎩,解得13,2a d ==,所以321)=2n+1n a n =+-(; n S =n(n-1)3n+22⨯=2n +2n . 〔Ⅱ〕由〔Ⅰ〕知2n+1n a =,所以b n =211n a -=21=2n+1)1-(114n(n+1)⋅=111(-)4n n+1⋅, 所以n T =111111(1-+++-)4223n n+1⋅-=11(1-)=4n+1⋅n4(n+1),即数列{}n b 的前n 项和n T =n4(n+1)。

富源县2022年高二第一学期期中生物试卷19

富源县2022年高二第一学期期中生物试卷19

富源县2022年高二第一学期期中生物试卷一、选择题(每小题3分,共45分)1. 下列说法错误的是:()A.细胞的分化发生在个体发育的全过程中B.所有的细胞都能正常顺利地完成细胞分化C.高度分化的植物细胞仍然保持全能性D.高度分化的动物细胞核仍然保持着全能性2. 下列组合中,依次属于种群、群落和生态系统的一组是()①生活在人体内的细菌②某一池塘中的全部生物③肺炎患者肺部的肺炎双球菌④一根枯木及枯木上的所有生物A.①②④ B. ②③④ C. ③②① D. ③②④3. 生态系统中的信息不包括()A.遗传信息 B. 物理信息 C. 化学信息 D. 行为信息4. 具有A个碱基对的一个DNA分子片段,含有m个腺嘌呤,该片段第n次复制需要多少个游离的鸟嘌呤脱氧核苷酸()A、(2n-1)·(A-m)B、2n-1 ·(A-m)C、(2n-1)·(A/2-m)D、2n-1·(A/2-m)5. 植物组织培养技术可以实现优良品种的快速繁殖,保持遗传性状的一致。

下列叙述正确的是()A.菊花茎段组织培养中,需对外植体进行灭菌处理B.菊花茎段组织培养中,必须添加植物激素C.月季花药培养中,一般从略微开放的花中选择单核期花药D.选择花药时,一般要通过镜检来确定其中的花粉是否处于适宜的发育期6. 下面关于下丘脑、垂体、甲状腺三种内分泌腺所分泌的激素之间相互关系的叙述,不正确的是( )A.下丘脑分泌的促甲状腺激素释放激素能促进垂体分泌促甲状腺激素B.垂体分泌的促甲状腺激素能促进甲状腺分泌甲状腺激素C.甲状腺激素可以抑制下丘脑和垂体的活动D.促甲状腺激素可以抑制下丘脑和甲状腺的活动7. 下列选项中,构成叶绿素所必需的无机盐离子是()A.Mg2+B.Fe2+C.Cu2+D.Na+8. 在光合作用过程中,光能最初用于()A. 碳和氧的化学合成B. 氢和二氧化碳的合成C. 将水分解为氧和氢D. 将淀粉分解为葡萄糖9. 分析一块生物组织,发现其中含有蛋白质、核酸、葡萄糖、磷脂、水、无机盐、纤维素等物质,这块组织最可能来自()A、草履虫B、大肠杆菌C、人D、柳树10. 噬菌体侵染细菌的正确顺序是()A、注入、吸附、释放、组装、合成B、合成、组装、释放、吸附、注入C、吸附、注入、合成、组装、释放D、吸附、注入、组装、合成、释放11. 下列关于“低温诱导植物染色体数目的变化”实验的叙述,正确的是()A.洋葱根尖经过低温诱导处理后,显微镜观察视野中均为染色体数目发生改变的细胞B.秋水仙素和低温都能诱导染色体数目加倍,但两者的原理是完全不同的C.经过低温诱导,根尖各个部位的细胞发生染色体数目加倍的概率基本相等D.低温诱导使根部细胞的染色体数目发生变化,通过植物组织培养可以遗传给下一代12. 下列哪项不属于孟德尔研究遗传定律获得成功的原因:()A.正确地选用实验材料B.采取工人杂交的实验方法C.先分析一对相对性状的遗传,运用统计学方法分析结果D.科学地设计实验程序,提出假说并进行验证13. 下列各项中,与成熟植物细胞吸水无关的是()A.细胞液浓度比外界溶液大B.原生质层C.细胞膜上的载体种类和数量D.蒸腾作用14. 生长素对植物生长的作用,一般地说()A、高浓度和低浓度都促进生长B、高浓度和低浓度都抑制生长C、高浓度抑制生长,低浓度促进生长D、高浓度促进生长,低浓度抑制生长15. 下列有关种群的叙述不正确的是()A.种群是生物进化和繁殖的基本单位B.种群中的全部个体的基因组成了这个种群的基因库C.种群中各年龄期个体数目比例适中,则该种群的密度在一定时间内会明显变大D.种群增长率在种群的“S”型增长曲线的各阶段是不同的二、主观题(共55分)1. 人的排尿是一种反射活动。

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富源县第六中学高二上学期期中考试英语试题第Ⅰ卷第一部分: 听力 (共两节,满分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。

每段对话仅读一遍。

1.How did the man get there?A. By busB. On footC. By car2.What will the speakers do tomorrow?A. Stay with their childrenB. Go to a partyC. Visit the woman’s mother3.What did the woman do last night?A. She went to a lectureB. She went to hospitalC. She stayed at home4.Why is the man going to the States?A. For a holidayB. To studyC. On business5.What did Sally do last Sunday?A. She went on a picnicB. She went to the zooC. She stayed at home笫二节(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.Where doe the conversation most probably take place?A. On the streetB. In a shopC. In a repair shop7.How much will the man be charged if he returns the MP4 player?A. 10%of the priceB. 30%of the priceC. no charge听第7段材料,回答第8、9题8.Why does the man want to speak to Jack?A. To tell him not to come to the partyB. To ask him to call backC. To ask him to go out for some fun9.What is Wang Li’s home phone number?A. 897--6732B. 866--7015C. 826--7015听第八段材料回答第10至12题10.What does the man want the woman to do?A. To buy him a ticket for the football gameB. To go with him to the football gameC. To tell him the way to the football stadium11.What advice does the woman give the man?A. To leave for the stadium earlyB. To buy the ticket earlyC. To listen to the radio12.Where is the football stadium?A. On the main streetB. Near a restaurant called Fanny’sC. Near the woman’s house听第9段材料,回答第13至16题13.Why is the woman moving?A. To find a nicer place to liveB. To share a flat with her friendC. To get a better job14.Who is Champ?A. The woman’s brotherB. The woman’s sonC. The woman’s dog15.Who is going to take care of Champ?A. The womanB. The manC. Betty16.What does the woman think of her life in Shanghai?A. She’s worried about itB. She will enjoy herselfC. She will be lonely there听第10段材料,回答第17至20题17.What is the talk mainly about?A. The culture of Hong KongB. The languages spoken in Hong KongC. The history of Hong Kong18.In which language are the road signs in Hong Kong printed?A. ChineseB. EnglishC. Chinese and English19.What was the official language of Hong Kong in 1970?A. ChineseB. EnglishC. Chinese and English20.How many Japanese people are living in Hong Kong?A. About 20,000B. About 2,500C. About 25,000第二部分:阅读理解(共两节,满分40分)第一节.(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。

AA visit to a zoo can be an amazing experience for people of all ages. If you want to get close to wildlife, why not visit one of the following zoos in the UK?Longleat Safari(游猎) & Adventure ParkWiltshire’s Longleat Safari & Adventure Park is the UK’s oldest safari park. Opened in 1966, it was the first safari park opened outside Africa. It was just a 100-acre lion reserve in the beginning, but it has grown fast over the years. Now you can see parrots and other creatures here, although lions are still popular with many people.Open from mid-February to early November, a day ticket costs£26 for adults. Admission(门票) for 3- to 14-year-old is£18.50 and£21 for the over-60s.Located just off the A36 between Bath and Salisbury, it can be reached by taking the A362.Bristol ZooBristol Zoo is one of the UK’s oldest zoos. It will celebrate its 180th anniversary(周年) in 2016. Here, you’ll find over 400 different species of creatures. It also has nine animal houses, so even if the weather isn’t at its best, there are still lots of amazing creatures to look at, including the endangered red panda. Perhaps one of the most popular places is Bug World, where you can see all kinds of scary insects.Admission for adults is£14 and£8.50 for 3- to 14-year-olds.Located in the Clifton region of Bristol, you can reach the zoo by taking either the No. 8 or 9 bus.21.What do we know about Wiltshire’s Longleat Safari & Adventure Park?A. It’s the first safari park in the UKB. It covers an area of 100 acres in totalC. It has a longer history than Bristol ZooD. It’s famous mostly for its parrots and lions22.How much should a 61-year-old couple with their 4-year-old grandson pay to visit the adventure park ?A. £42B. £52C. £60.5D. £70.523.Bristol Zoo was opened probably in __________.A. 1826B. 1766C. 1936D. 1836BThe first day of the month of May is known as May Day. It is the time of year when warmer weather begins. People celebrate the coming of summer with customs that are expressions of joy and hope after a long winter. Today, May Day activities have been moved to the May Day holiday on the first Monday of the month. It is a public holiday when families take advantage of the time off to visit some of the UK’s many attractions, including parks, zoos, historic buildings, ancient towns and villages and beautiful countryside.May Day celebrations have their origins in the Roman festival of Flora, the goddess of fruit and flowers, which marked the beginning of summer. People would decorate their houses and villages with leaves and flowers they picked at daybreak in the belief that the vegetation spirits would bring good luck. In the very early morning, young girls went into the fields and washed their faces with dew (露水). They believed this made them very beautifulfor the following year.May Day was an important day in the Middle Ages and was a favorite holiday of many English villages. People of the time used to cut down young trees and stick them in the ground in the village to mark the arrival of summer. This is the origin of the maypole (五月柱). People danced around them in celebration of the end of winter. Maypoles were once common all over England and were kept from one year to the next. The tallest maypole is said to have been put up in London on the Strand in 1661. It stood more than 143 feet high and was cut down in 1717, when it was used by Newton to support a new reflecting telescope (反射式望远镜) invented by Dutch scientist Huygens.24.How do British people celebrate May Day?A. They visit friends and family membersB. They celebrate it on the first Monday of MayC. They spend a lot of time shopping aroundD. They show great love for the long winter25.The underlined word “this” in Paragraph 2 refers to _____.A. washing the face with dewB. going into the fieldsC. picking flowers at daybreakD. getting up early in the morning26.What can we learn about the maypole?A. People climb it on May DayB. It was usually found in the citiesC. It dates from the Middle AgesD. People used old, tall trees to make it.27.The purpose of the text is to _____.A. describe Roman customsB. suggest spring family activitiesC. explain the origins of maypolesD. introduce a festival--May DayCModern science proves that a healthy lifestyle matters much to how long you can live and how well you live. Here are some tips for you to form a healthy lifestyle.Keep a scientific diet. Keep in mind that sugar can be removed(去除) from our diet completely. Over intake(摄入量) of sugar is one of the main reasons for getting fat. Over intake of protein(蛋白质) or fat and low intake of fiber can also lead to getting fat. We only need a few grams of protein to keep our body in order.Be always in a good mood. There is a relationship between the mood and health. A good mood keeps you in high spirits. Thanks to the Internet, we can enjoy and learn much without going out. Take a look at some online shops and pick up some bargains, enjoy music and movies and chat with good friends. Just keep happy.Enough sleep. Two studies show the reasons why teens and adults don't have enough sleep. With teens, a major reason is mobile phone use; with adults, it's work. Meanwhile, a third study of young children shows that lack of sleep in early life may lead to serious problems in future. Everyone needs at least 8-hour sleep to recover(恢复) from tiredness and the hurt caused by hard work in the daytime.Proper exercise. Do exercise to keep away from fatness. Because of the quick pace of the modem life, you don't have time to do exercise every day, but at least three times a week and 45 minutes each time.28. What is the writer's purpose in writing the passage?A. To tell the readers how to take proper exercise every dayB. To provide some advice on how to form a healthy lifestyleC. To ask people to care about their health rather than their workD. To make some surveys among those who have health problems29. Which of the following can lead to getting fat according to the passage?A. Low intake of proteinB. Low intake of fatC. Over intake of fiberD. Over intake of sugar30. The main reason why teenagers don't have enough sleep is that they ?e mobile phones too muchB.have too much homeworkC.eat too much sugar every dayD.don't have enough exercise31. How many minutes do you need to do exercise at least every week?A.45 minutesB.90 minutesC.115 minutesD. 135 minutesDResearchers from France and Italy discovered that Canadian parents are less strict with their children than mothers and fathers in France and Italy.“Our most important finding was the difference between Canadians and the others,” said Professor Michel Claes, the lead author of the study. “Canadians focus on independence and negotiation(协商). On the other hand, Italians, for example, exercise more control. We found Canadians seem to focus on negotiation in case of a conflict(冲突).”Claes said Canada, France and Italy were selected for the study because they share important cultural and social factors. “We chose French­Canadians becau se they share the same language as France, and originally came from France and share certain values. Italy was included because it was considered to have similar, strong and important family values,” he explained.The researchers examined the emotional(情感的) ties between parents and their children by questioning 1,256 students aged 11 to 19 years old.Canadian students reported less control and more free actions, according to the study. Italian parents were stricter and French parents were somewhere in the middle.Claes explains that the differences lie in education in Canada, France and Italy.“North America has its own educational values, which promote individualization. Tolerance and comprehension are encouraged. Italy, on the other hand, promotes respect of authority, control, and the need for permission.” he said.Children from all three countries described their mothers as warm and communicative. Italian and Canadian children had similar feelings about their fathers, and reported high levels of emotional ties. But French fathers were generally thought by their children to be more distant and cold.“We were surprised by this,” Claes admitted.“It seems as though the relationships between French mothers and their children were becoming closer over time, while fathers keep a form of distance and coldness, which is more of a source of conflict in France than in the other countries.”32.Professor Michel Claes believes that Canada, France and Italy ________.A.have the same family spiritB.have some similar cultural traditionsC.have experienced some similar social changesD.have experienced similar cultural developments33.How did the researchers carry out the study?A.By collecting answers of parents from Canada, France and ItalyB.By collecting answers of children from Canada, France and ItalyC.By questioning parents and their children from Italian Canadian familiesD.By questioning children from French-Canadian families34.According to Michel Claes, what mainly leads to the differences in parent-children relationships among Canada, France and Italy?cational valuesB.Traditional ideasC.Cultural valuesD.Historical events35.Which of the following is NOT a finding of the study?A.French children have troubled relationships with their fathers.B.Canadian children have close relationships with their parentsC.Italian children have good relationships with their fathers.D.Kids from Canada, France and Italy have closer ties with their moms第二节(共5小题;每小题2分,满分10分)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。

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