哈尔滨市第六中学2009届高三第一次模拟考试
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a b CO 2a b 光照光 合速率 光 合 速率 哈尔滨市第六中学2009届高三第一次模拟考试理科综合试卷本试卷分第I 卷(选择题)和第II 卷(非选择题)两部分。
满分300分。
考试时间150分钟第I 卷 (选择题 共126分)一、选择题(本题包括13小题,每小题6分。
每小题只有一个选项符合题意)1、下面甲、乙两图分别表示植物的光合速率与光照强度、CO 2含量的关系。
对两图而言,下列叙述正确的是:甲 乙A .若土壤中N 、P 、Mg 含量持续下降,不可能导致两图中a,b 点改变B .若环境温度发生变化,会导致两图中a,b 点位置改变C .若图中表示的是阳生植物,则对阴生植物而言甲图中a 点应向右移动D .若图中表示的是C 3植物,则对C 4植物而言乙图中a 点应向右移动2、下列关于硝化细菌的说法正确的是A .线粒体是硝化细菌进行有氧呼吸的主要场所B .叶绿体是硝化细菌进行同化作用的主要场所C .硝化细菌可以将氨转变为亚硝酸盐和硝酸盐D .硝化细菌的细胞质中的遗传物质是RNA3、下列关于抗原的叙述,正确的是A.人体内的细胞不可能成为抗原B.抗原侵入人体后的反应机理与过敏原相同C.能够特异性中和细菌外毒素的物质是一种抗原D.一种抗原只能与相应的抗体或效应T 细胞发生特异性结合4、在培养金黄色葡萄球菌时污染了青霉菌,青霉菌菌落附近一圈区域内金黄色葡萄球菌不能生存。
下列相关叙述错误的是A .青霉素与金黄色葡萄球菌之间为竞争关系B .取少量处于对数期的金黄色葡萄球菌,接种到适合其生长但成分不同的另一培养基中,其诱导酶种类可能发生改变C .青霉素是青霉菌的次级代谢产物D .若青霉菌菌落附近仍存在一个金黄色葡萄球菌菌落,根本原因是金黄色葡萄球菌拟核DNA 发生了抗青霉素的基因突变5、下列关于生态因素对生物影响的说法错误的是A .影响鹿、山羊等动物繁殖的关键因素是温度B .温暖地区的阔叶林多,而寒冷地区的针叶林多C .水分过多或过少都会影响陆生生物的生长和发育D .生物因素和非生物因素对生物的影响具有综合性6.下列盛放试剂的方法正确的是( )A .氢氟酸或浓硝酸存放在带橡皮塞的棕色玻璃瓶中B .汽油或煤油存放在带橡皮塞的棕色玻璃瓶中C .碳酸钠溶液或氢氧化钙溶液存放在配有磨口塞的棕色玻璃瓶中D .氯水或硝酸银溶液存放在配有磨口塞的棕色玻璃瓶中7.0.01 mol ·L -1的某一元弱酸溶液 pH =4,则它的电离程度为( )A 1%B 2%C 5%D 10% 8.下列反应的产物中,有的有同分异构体,有的没有同分异构体,其中一定不存在...同分异构体的反应是( )A .异戊二烯(CH 2 C —CH CH 2)与等物质的量的Br 2发生加成反应B .2—氯丁烷(CH 3CH 2CHCH 3)与NaOH 乙醇溶液共热发生消去HCl 分子的反应C .甲苯在一定条件下发生硝化生成一硝基甲苯的反应D .邻羟基苯甲酸与NaHCO 3溶液反应9.下列各组物质中,仅用水及物质间相互反应不能一一区别的一组是( )A .Na 2O 2 Al 2(SO 4)3 MgCl 2 K 2CO 3B .BaCl 2 Na 2SO 4 (NH 4)2SO 4 KOHC .AgNO 3 NaCl KCl CuCl 2D .Fe 2(SO 4)3 K 2CO 3 KHSO 4 NH 4Cl10.将 4 mol A 气体和 2 mol B 气体在 2 L 的容器中混合并在一定条件下发生如下反应2A (气)+B (气)2C (气)若经 2 s (秒)后测得 C 的浓度为 0.6 mol·L -1 ,现有下列几种说法:① 用物质 A 表示的反应的平均速率为 0.3 mol·L -1·s -1② 用物质 B 表示的反应的平均速率为 0.6 mol·L -1·s -1 ③2 s 时物质 A 的转化率为70%④ 2 s 时物质 B 的浓度为 0.7 mol·L -1CH 3|| Cl其中正确的是( )A .①③ B. ①④ C. ②③ D. ③④11.能正确表示下列化学反应的离子方程式是( )A .用碳酸钠溶液吸收少量二氧化硫:2CO 32-+SO 2+H 2O =2HCO 3-+SO 32-B .金属铝溶于盐酸中:Al +2H +=Al 3++H 2↑C .硫化钠溶于水中:S 2-+2H 2O =H 2S↑+2OH -D .碳酸镁溶于硝酸中:CO 32-+2H +=H 2O +CO 2↑12.用惰性电极实现电解,下列说法正确的是( )A .电解稀硫酸溶液,实质上是电解水,故溶液pH 不变B .电解稀氢氧化钠溶液,要消耗OH -,故溶液pH 减小C .电解硫酸钠溶液,在阴极上和阳极上析出产物的物质的量之比为1:2D .电解氯化铜溶液,在阴极上和阳极上析出产物的物质的量之比为1:113.将aL H 2和Cl 2的混合气体点燃,充分反应后,将混合气体通入含bmol NaOH 的热溶液中,气体恰好被完全吸收,NaOH 无剩余,测得反应后溶液中含Cl —、ClO —、ClO 3—且三者物质的量之比为8∶1∶1,则原混合气体中H 2物质的量为( )A .a/2 molB .(a/22.4—b )molC .(a/22.4—b/2)molD . b/2 mol二、选择题(本题包括8小题。
1.Чьи очки на кровати?A.Очки матери.B.Очки отца.C.Очки сына.2.Как Тамара приготовила грибы?A.Отлично.B.Плохо.C.Не очень хорошо.3.На кого похожа Ира ?A.На маму.B.На папу.C.На бабушку.4.Что больше нравится Мише?A.Ему больше нравится опера.B.Ему больше нравится балет.C.Ему больше нравится музыка.5.Сколько стоит один хлеб?A.2 рубля.B.8 рублей.C.16 рублей.B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答案,并标在试卷的相应位置。
听完每段对话或独白后,你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、7题。
6.С чем идёт Андрей на день рождения подруги ?A.С цветами.B.С книгами.C.С тортом.7 .Куда идёт девушка?A.К Рите.B.К Ивану.C.К Игорю.听第7段材料,回答第8、9题。
8.Что нового у Анны Ивановны?A.Дочь поступила в институт.B.Дочь поступила на работу в институт.C.Дочь окончила институт.9.Кем хочет стать дочь Анны Ивановны?A.Хорошим жудожником.B.Учителем русского языка.C.Учителем английского языка.听第8段材料,回答第10-12题。
哈尔滨市第六中学2008-2009学年度上学期期末考试高三语文试题(满分:150分,时间:150分钟)Ⅰ卷(选择共45分)一、科技文阅读:让汽车自动行驶随着汽车工业的发展和非专业司机的不断增加,车辆驾驶的自动化已成为汽车发展的主要趋势之一,人们期待已久的愿望——汽车自动驾驶或许将成为现实。
自20世纪70年代起,各大汽车厂家都争相研制汽车自动巡航控制系统并装在较高级的轿车上。
利用自动巡航控制系统,司机可以根据需要设定车速。
按照需要,引擎控制器会打开油门提高车速,或关闭油门,用引擎制动降低车速。
经过改进的巡航控制系统,还可以在引擎动力不足,比如车辆沿着陡坡下行时,启动刹车装置,降低车速。
不过,上述巡航控制系统都不能判断汽车是否正在靠近前面的车辆,也就无法提示司机在紧急时踩刹车。
第一代自适应巡航控制系统则具有这样的功能,它利用远程雷达或激光雷达追踪正前方车辆,避免车祸发生。
司机可以同时设定车速和1~3秒的车间时距,如果与前方车辆的距离太近,自适应巡航控制系统就会限制油门,降低车速(必要时甚至会启动刹车系统),使汽车与前方车辆保持恒定的时距。
如果前方车辆变道或转弯,系统会将车速提升至设定值;如果前方车辆的速度降低至临界值(如低于25km/h),系统就会停止运行,并语音提示控制汽车。
目前,几家汽车厂商开始研制新一代自适应巡航控制系统——能根据实际情况使汽车停下来,再重新启动。
在日常交通中,这一功能非常实用:停车后,司机常常要重新挂档、加速才能让汽车行驶,安装了新一代自适应巡航控制系统就不用这么麻烦了。
不过,要让这项功能发挥作用,汽车必须配置短程雷达,来感知汽车前方的车辆和行人情况。
紧跟新一代自适应巡航控制系统脚步的,将是可以自动行驶的汽车。
美国特尔斐电子安全部负责人迈克尔·索尼说:“自适应巡航控制系统使自动行驶汽车成为可能。
”如果在汽车尾部转角处加装一种短程传感器,检测司机视野死角,再在前挡风玻璃外安装一台摄像机,就可以让汽车自动在公路上行驶,安全变换车道,极大减少交通事故。
2010-2023历年黑龙江哈尔滨市第六中高三第一次模拟考试物理卷第1卷一.参考题库(共10题)1.有一个匀强磁场,它的边界是MN,在MN左侧是无场区,右侧是匀强磁场区域,如图甲所示。
现在有一个金属线框以恒定速度从MN左侧进入匀强磁场区域,线框中的电流随时间变化的i-t图像如图乙所示。
则可能的线框是()2.下列说法正确的是()A.天然放射现象说明原子核内部具有复杂结构B.α粒子散射实验说明原子核内部具有复杂结构C.氢原子从定态n=4跃迁到n=3,再跃迁到n=2定态,则后一次跃迁辐射出的光子波长比前一次的长D.氢原子从定态n=4跃迁到n=3,再跃迁到n=2定态,则后一次跃迁辐射出的光子频率比前一次的大3.(9分)在某节日庆典上,为了达到所需要的灯光效果,需要完成下列工作。
如图所示,由红、黄两种单色光组成的光束a,以入射角i从平行玻璃板上表面O 点入射。
已知平行玻璃板厚度为d,红光和黄光的折射率分别为n1和n2,真空中的光速为c。
试求红黄光从下表面射出的时间差4.如图所示,水平传送带以恒定速度v向右运动。
将质量为m的物体Q轻轻放在水平传送带的左端A处,经过t秒后,Q的速度也变为v,再经t秒物体Q到达传送带的右端B处,则()A.前t秒内物体做匀加速运动,后t秒内物体做匀减速运动B.后t秒内Q与传送带之间无摩擦力C.前t秒内Q的位移与后t秒内Q的位移大小之比为1:1D.Q由传送带左端运动到右端的平均速度为5.消防队员在某高楼进行训练,他要从距地面高h=36m处的一扇窗户外沿一条竖直悬挂的绳子滑下,在下滑过程中,他先匀加速下滑,此时手脚对悬绳的压力=640N,紧接着再匀减速下滑,此时手脚对悬绳的压力=2080N,滑至地面时速度恰为0。
已知消防队员的质量为m=80kg,手脚和悬绳间的动摩擦因数为μ=0.5,g=10m/s2,求:(1)分别求出他在加速下滑、减速下滑两过程中的加速度大小?(2)他沿绳滑至地面所用的总时间t?6.一位同学在二楼教室窗口把一个篮球用力水平抛出,篮球落地时重力的瞬时功率约为()A.5WB.50WC.500WD.5000W7.如图甲所示,电路的左侧是一个电容为C的电容器,电路的右侧是一个环形导体,环形导体所围的面积为S。
2009届哈尔滨市第六中学高三第一次模拟考试数学试卷(文科)本试卷分第Ⅰ卷(选择题)和第Ⅱ 卷(非选择题)两部分,满分150分,考试用时120分钟;第Ⅰ卷(选择题 满分60分)一、选择题(本大题共12小题,每小题5分,共60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.已知集合21{|log ,1},{|(),01}2xA y y x xB y y x ==>==<<,则AB 为 ( )A .)21,0(B . ),21(+∞C . 1(,1)2D .(0,2)2.函数()122log 231y x x =-+的递减区间为 ( )A .()+∞,1B .⎥⎦⎤ ⎝⎛∞-43, C .⎪⎭⎫ ⎝⎛+∞,21 D .⎪⎭⎫⎢⎣⎡+∞,433.函数x x x f 32sin)232sin()(++=π的图象相邻的两条对称轴之间的距离是 ( )A .π3B .π6C .23πD .43π4.已知向量)1 ,1(-=x a,=b (1, x x -1),则||b a +的最小值是 ( )A .1B .2C .3D .25.已知数列{}n a 为等差数列,且17134a a a π++=,则212tan()a a += ( )A . BC .D .6.下面给出四个命题:① 直线l 与平面α内两直线都垂直,则l α⊥; ② 经过直线a 有且仅有一个平面垂直于直线b ; ③ 过平面α外两点,有且只有一个平面与α垂直;④ 直线l 同时垂直于平面α、β,则α∥β;其中正确的命题个数为 ( ) A .0B .1C .2D .37.一次文艺演出中,需要给舞台上方安装一排完全相同的彩灯共15只,以不同的点亮方式增加舞台效果,设计者按照每次点亮时,恰好有6只是关的,且相邻的灯不能同时被关掉,两端的灯必须点亮的要求进行设计,那么不同点亮方式的种数是 ( )A .28B .84C .180D .3608.直线0ax by b a ++-=与圆2230x y x +--=的位置关系是 ( ) A .相交B .相离C .相切D .与a 、b 的取值有关9.已知x ,y 满足6003x y x y x -+≥⎧⎪+≥⎨⎪≤⎩,z ax y =+若的最大值为93+a ,最小值为33a -,则a 的范围为 ( )A .1≥aB .1-≤aC .11≤≤-aD .11-≤≥a a 或10.函数1)2()(2-+-+=a x a x x f 是偶函数,则曲线1)(==x x f y 在处的切线方程是 ( )A .42+-=x yB .x y -=C .22+=x yD .x y 2=11.椭圆()2222 1 0x y a b a b+=>>的中心、右焦点、右顶点、右准线与x 轴的交点依次为O F A H 、、、,则||||FA OH 的最大值为 ( ) A .12 B .13 C .14D .不能确定12.如图,已知平面α⊥平面β,A 、B 是平面α与平面β的交线上的两个定点,,DA β⊂CB β⊂,且DA α⊥,CB α⊥,4AD =,8BC =,6AB =,在平面α内有一个动点P ,使得APD BPC ∠=∠,则PAB ∆的面积的最大值是 ( )A .24B .32C .12D .48第Ⅱ卷 (非选择题 满分90分)二、填空题:本大题共4小题,每小题5分,共20分.把答案填写在答题纸相应位置上.13.二项式6)2(xx +的展开式中常数项为 ; 14.在四面体ABCD 中,、5,则此四面体ABCD 的外接球的半径R 为 ;15.已知12F F 、分别为双曲线22221(0,0)x y a b a b-=>>的左右焦点,P 为双曲线左支上的一点,若221||8||PF a PF =,则双曲线的离心率的取值范围是 ;16.对于函数x x x f cos sin )(+=, 给出下列命题:① 存在)2,0(πα∈, 使34)(=αf ; ② 存在)2,0(πα∈, 使)3()(αα+=+x f x f 恒成立;③ 存在R ϕ∈, 使函数)(ϕ+x f 的图象关于y 轴对称; ④ 函数()f x 的图象关于点)0,43(π对称; ⑤ 若0,2x π⎡⎤∈⎢⎥⎣⎦,则()f x ∈; 其中正确命题的序号是 ;三、解答题:本大题共6小题,共70分.解答应写出文字说明,证明过程或演算步骤. 17.(本题满分10分)在ABC ∆中,角A B C 、、的对边分别为a b c 、、,(2,)b c a =-m ,(cos ,cos )A C =-n ,且⊥m n ;(1)求角A 的大小; (2)当22sin sin(2)6y B B π=++取最大值时,求角B 的大小;18.(本题满分12分)在教室内有10名学生,分别佩带着从1号到10号的校徽,任意选3人记录其校徽的号码;(1)求最小号码为5的概率;(2)求3个号码中至多有一个偶数的概率;(3)求3个号码之和不超过9的概率; 19.如图,梯形ABCD 中,CD//AB ,AD=DC=CB=21AB=1,E 是AB 的中点,将△ADE 沿DE 折起,使点A 折到点P 的位置,且二面角P —DE —C 的大小为120°。
2009届哈尔滨市第六中学高三第一次模拟考试理科综合试卷生物部分本试卷分第I卷(选择题)和第II卷(非选择题)两部分。
满分300分。
考试时间150分钟第I卷(选择题共126分)一、选择题(本题包括13小题,每小题6分。
每小题只有一个选项符合题意)1、下面甲、乙两图分别表示植物的光合速率与光照强度、CO2含量的关系。
对两图而言,下列叙述正确的是:A.若土壤中N、P、Mg含量持续下降,不可能导致两图中a,b点改变B.若环境温度发生变化,会导致两图中a,b点位置改变C.若图中表示的是阳生植物,则对阴生植物而言甲图中a点应向右移动D.若图中表示的是C3植物,则对C4植物而言乙图中a点应向右移动2、下列关于硝化细菌的说法正确的是A.线粒体是硝化细菌进行有氧呼吸的主要场所B.叶绿体是硝化细菌进行同化作用的主要场所C.硝化细菌可以将氨转变为亚硝酸盐和硝酸盐D.硝化细菌的细胞质中的遗传物质是RNA3、下列关于抗原的叙述,正确的是A.人体内的细胞不可能成为抗原B.抗原侵入人体后的反应机理与过敏原相同C.能够特异性中和细菌外毒素的物质是一种抗原D.一种抗原只能与相应的抗体或效应T细胞发生特异性结合4、在培养金黄色葡萄球菌时污染了青霉菌,青霉菌菌落附近一圈区域内金黄色葡萄球菌不能生存。
下列相关叙述错误的是A.青霉素与金黄色葡萄球菌之间为竞争关系B.取少量处于对数期的金黄色葡萄球菌,接种到适合其生长但成分不同的另一培养基中,其诱导酶种类可能发生改变C.青霉素是青霉菌的次级代谢产物D.若青霉菌菌落附近仍存在一个金黄色葡萄球菌菌落,根本原因是金黄色葡萄球菌拟核DNA发生了抗青霉素的基因突变5、下列关于生态因素对生物影响的说法错误的是A.影响鹿、山羊等动物繁殖的关键因素是温度B.温暖地区的阔叶林多,而寒冷地区的针叶林多C.水分过多或过少都会影响陆生生物的生长和发育D.生物因素和非生物因素对生物的影响具有综合性第II卷(非选择题共174分)三、非选择题(本题包括10小题)30、回答下列Ⅰ、Ⅱ小题(20分)Ⅰ.(10分)科学家从某些能无限增殖的细胞的细胞质中分离出了无限增殖的调控基因,该基因能激发许多动物细胞的分裂,这为单克隆抗体的制备提供了更为广阔的前景。
2009届哈尔滨市第六中学高三第一次模拟考试文科综合试卷历史部分试卷分为第Ⅰ卷(选择题)和第Ⅱ卷(综合题)两部分,满分300分,考试时间150分钟。
注意事项∶1.答第Ⅰ卷前,考生务必将自己的姓名、准考证号、考试科目涂写在答题卡上。
考试结束,将试题卷和答题卡一并交回。
2.每小题选出答案后,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,再选涂其他答案,不能答在试题卷上。
第Ⅰ卷(选择题,共140分)一.选择题:本卷共35小题,每小题4分,共计140分。
在每小题列出的四个选项中,只有一项是符合题目要求的。
12.《国语·齐语》载:“……美金以铸剑戟,试诸狗马;恶金以铸鉏、夷、斤、斸,试诸壤土”。
郭沫若释“美金”、“恶金”分别指青铜和铁器。
与郭沫若得出这一结论相匹配的历史事实是战国时期A.青铜主要用作武器;铁器已应用于农业生产B.青铜颜色亮丽;铁器颜色深暗C.青铜高贵,宜作武器;铁器低贱,仅作农具D.青铜质地坚硬不易酸化;铁器质地粗糙且易锈蚀13.下列诗句、观点或现象与当今生态文明观最为贴近的是A.“制天命而用之”B.“风吹草低见牛羊”C.“起来望南山,山火烧山田”D.“西北望长安,可怜无数山”14.和谐社会的构建强调以民为本,而“民本”的思想自古有之。
下列言论中对于建设和谐社会没有启迪作用的是A.“政在得民”B.“民贵君轻”C.“存百姓”的思想D.“为政之要,惟在得人”15.著名的唯物主义哲学家培根说:“这三种东西曾改变了整个世界事物面貌和状态:第一种在文化方面,第二种在战争上,第三种在航海上。
”培根所说的三种东西是指我国古代的①印刷术、造纸术②火药③罗盘针④以儒家思想为代表的古典文化A.①②③B.②③④C.①③④D.①②③④16.从适应历史发展的角度看,下列著作最具进步意义的是A.《海国图志》B.《原道觉世训》C.《天朝田亩制度》D.《资政新篇》17.从16世纪开始,中国社会兴起了“西学东渐”之风,到了中国近代“西学东渐”不断深入,对此理解不正确的是A.西学东渐最早体现在早期民主启蒙思想的潜滋暗长B.西学东渐过程中,存在着“中学为体、西学为用”的思想C.近代西学东渐的深入主要在于民族资本主义的发展D.西学东渐有利于中西方文化思想之间的交流18.孙中山先生从青年时代就关心植树造林,大力提倡“植树以收利,蓄木以为薪”。
哈尔滨市第六中学2009-2010学年高三上学期期末语文试题学校:___________姓名:___________班级:___________考号:___________一、其他1.下列词语读音字形全都正确的一组是()A.骁.勇(xiāo) 哂笑返回舱引吭.高歌(hánɡ)B.勾.当(ɡòu) 熟稔戴手拷挑拨离间.(jiān)C.下载.(zài) 纹身冠名权度.德量力(duó)D.肖.(xiào)像要挟紧箍咒自怨自艾.(ài)2.下列各句中加点的词语,使用恰当的一组是()A、中国改革开放30年使我国发生翻天覆地的历史性巨变。
喜看今朝,江山如画,河清海晏....,一派繁荣景象。
B.由于人类活动排放了大量的温室气体,导致气候全球变暖,如果南极大陆涣然..冰释..,那么许多岛国将因此失去生存的家园。
C.那位有“四川第一指挥家”之称的指挥对毛庆劳说:“你儿子的耳朵太好了,不搞音乐简直就是暴殄天物....!”D.这些来自北方的文艺家们对康有为的百年老屋特别感兴趣,对这座古建筑的一砖一瓦、一草一木皆品头论足....。
他们说,在北方根本看不到这样风格的建筑。
3.依次填入下面一段文字中横线处的语句,与上下文衔接最恰当的一组是()在傍晚,,河面上的水气冉冉而上,,这时候的辽河真是具有无法比拟的绝妙色调。
我站在轮船上,无意中举目瞭望着那的河面,,在黑糊糊的房子上空,看到,我禁不住流下泪水。
①夜幕徐徐降临②夜幕渐合③晚霞余晖未尽④一轮明月徐生⑤在那深暗的绿波远处A.③①⑤②④ B.①③④②⑤ C.①③②⑤④ D.③①②④⑤阅读下面的文字,完成5-7题。
民族民俗民间文化包括各种民俗活动、表演艺术、知识技能、手工制作,以及所赖以生存的空间场所。
作为积存下来的活态的文化遗产,它既是历史的产物,又是历史与当下的结合。
就其内容与属性而言,不总如英语中这一词汇所指,是一种“落后”的“遗留物”。
2024年黑龙江哈尔滨市第六中高三第一次模拟考试全真演练物理卷(基础必刷)学校:_______ 班级:__________姓名:_______ 考号:__________(满分:100分时间:75分钟)总分栏题号一二三四五六七总分得分评卷人得分一、单项选择题(本题包含8小题,每小题4分,共32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)(共8题)第(1)题如图,有一个带有小缺口的绝缘圆环内存在垂直纸面向外的匀强磁场,圆环绕圆心逆时针转动。
一带正电的粒子从小缺口沿直径方向进入圆环内部,且与圆环没有发生碰撞,最后从小缺口处离开磁场区域。
已知粒子的比荷为k,磁场的磁感应强度大小为B,圆环的半径为R,粒子进入磁场时的速度为,不计粒子的重力。
则圆环旋转的的角速度可能为( )A.2kB B.3kB C.5kB D.7kB第(2)题如图所示,虚线框内为漏电保护开关的原理示意图,变压器A处用火线和零线双线平行绕制成线圈,然后接到用电器。
B处有一个输出线圈,一旦B处线圈中有电流,经放大后便能推动继电器切断电源。
如果甲、乙、丙、丁四人分别以图示方式接触电线(裸露部分),甲、乙、丙站在木凳上,则下列说法正确的是( )A.甲会发生触电事故,继电器不会切断电源B.乙会发生触电事故,继电器不会切断电源C.丙会发生触电事故,继电器会切断电源D.丁会发生触电事故,继电器会切断电源第(3)题关于气体压强的说法,下列选项正确的是( )A.气体对容器的压强源于气体分子的热运动B.气体对容器的压强源于气体分子受到重力作用C.气体分子密集程度增大,气体压强一定增大D.气体分子平均动能增大,气体压强一定增大第(4)题下列关于地球同步卫星的说法正确的是( )A.地球同步卫星相对地心是静止的B.地球同步卫星运动的速度不变C.研究地球同步卫星的运动轨迹时不能将其看成质点D.地球同步卫星的位置坐标不发生变化第(5)题如图所示,竖直平面内一倾斜轨道与一足够长的水平轨道通过一小段光滑圆弧平滑连接,斜面倾角,可视为质点的一小物块B静止在水平轨道的最左端,另一也可视为质点的A物块从离水平面高度为H=3m的位置静止释放,到达斜面底端进入水平轨道后与B发生弹性正碰,碰后物块A反弹后能上升到距离水平面最高为h=m处。
2024年黑龙江哈尔滨市第六中高三第一次模拟考试物理卷一、单选题 (共6题)第(1)题如图所示,水平地面上静止叠放着a、b两个石块,已知a与b之间接触面切线不水平,不考虑a与b之间的万有引力以及空气影响,下列说法正确的是()A.b对a的支持力与a受到的重力是一对平衡力B.b共受到5个力的作用C.地面对b的摩擦力水平向左D.地面受到的压力等于a和b的重力之和第(2)题m、n两种单色光由同一方向从空气斜射入长方形玻璃砖,其光路如图所示。
现若让m、n两光在该玻璃中以相同的入射角由同一方向射向空气,随着入射角从零逐渐增大,下列分析正确的是( )A.玻璃砖对n的折射率较大B.在该玻璃中,m频率较大C.在该玻璃中,m传播的速度较大D.随着入射角增大,n的折射光线先消失第(3)题渔船常用回声探测器发射的声波探测水下鱼群与障碍物.声波在水中传播速度为,若探测器发出频率为的声波,下列说法正确的是()A.两列声波相遇时一定会发生干涉B.声波由水中传播到空气中,波长会改变C.该声波遇到尺寸约为的被探测物时会发生明显衍射D.探测器接收到的回声频率与被探测物相对探测器运动的速度无关第(4)题我国研制的“复兴号动车组”首次实现了时速350km/h的自动驾驶,此时多普勒效应会影响无线通信系统稳定,这要求通信基站能分析误差并及时校正。
如图一辆行驶的动车组发出一频率为、持续时间为的通讯信号,与动车组行驶方向在同一直线上的通信基站A、B接收到信号的频率和持续时间分别为、和、,下列判断正确的是( )A.B.C.D.第(5)题如图,半径为R的均匀带正电薄球壳,其上有一小孔A.已知壳内的场强处处为零;壳外空间的电场与将球壳上的全部电荷集中于球心O时在壳外产生的电场一样.一带正电的试探电荷(不计重力)从球心以初动能E k0沿OA方向射出.下列关于试探电荷的动能E k与离开球心的距离r的关系图象,可能正确的是A.B.C.D.第(6)题分别用a、b两束光照射同一光电效应设备,得到光电流与光电管两极间电压的关系图像如图所示。
2024年黑龙江哈尔滨市第六中高三第一次模拟考试全真演练物理卷一、单选题 (共6题)第(1)题如图所示,与水平面夹角为的固定斜面上有一质量的物体。
细绳的一端摩擦不计的定滑轮与固定的弹簧秤相连。
物体静止在斜面上,弹簧秤的示数为,关于物体受力的判断(取),下列说法正确的是( )A.斜面对物体的摩擦力大小为零B.斜面对物体的摩擦力大小为,方向沿斜面向上C.斜面对物体的支持力大小为,方向沿斜面向上D.斜面对物体的支持力大小为,方向垂直斜面向上第(2)题2022年10月9日,在酒泉卫星发射中心成功发射了“夸父一号”综合性太阳探测卫星,首次实现在同一颗卫星上对太阳高能成像和大气不同层次变化的同时观测。
已知“夸父一号”绕地球做匀速圆周运动,离地高度为,运动周期为,地球的半径,则根据以上信息可知( )A.“夸父一号”为综合性太阳探测卫星,所以发射速度大于第二宇宙速度B.“夸父一号”的运行速度大于第一宇宙速度C.“夸父一号”的周期与近地卫星的周期之比为D.第一宇宙速度的大小为第(3)题图(a)为一列简谐横波在某一时刻的图像,P、Q为平衡位置在x p=3m和x Q=6m的两质点,图(b)为质点P从该时刻开始计时的振动图像。
下列说法正确的是( )A.该波波速为3m/sB.该波沿x轴负方向传播C.P在平衡位置时Q质点总在波谷D.质点P在t=5s时沿y轴负方向运动第(4)题如图所示,一光束包含两种不同频率的单色光,从空气射向两面平行玻璃砖的上表面,玻璃砖下表面有反射层,光束经两次折射和一次反射后,从玻璃砖上表面分为两束单色光射出,a、b分别为两束单色光的出射点,下列说法正确的是( )A.a光的频率小于b光的频率B.在同种玻璃中,a光的速度大于b光的的速度C.出射光束a、b一定相互平行D.a、b两色光从同种玻璃射向空气时,a光发生全反射的临界角大第(5)题如图甲所示为一台小型发电机的结构示意图,内阻为0.7Ω的单匝线圈在匀强磁场中匀速转动,产生的电动势随时间变化的正弦图线如图乙所示,电压表、电流表均为理想交流电表,定值电阻的阻值R=10.3Ω,则下列说法正确的是( )A.发电机产生的电动势最大值为,线圈的转速n=50r/minB.电流表的示数为10A,电压表的示数为110VC.0~0.01s的时间内,通过定值电阻的电荷量为D.t=0.02s时,穿过线圈的磁通量变化率最大第(6)题甲、乙、丙三位同学,晚饭后在学校田径场100米赛道上散步,其位移-时间图像如图所示,图线丙为直线,下列说法正确的是()A.三位同学同时从同一位置出发B.在t₂时刻,三位同学相遇C.在内,甲同学的平均速度最大D.甲、乙两位同学在做曲线运动二、多选题 (共4题)第(1)题位于坐标原点处的波源A沿y轴做简谐运动,A刚好完成一次全振动时,在介质中形成简谐横波的波形如图所示,B是沿波传播方向上介质的一个质点,则( )A.波源A开始振动时的运动方向沿y轴负方向B .此后的周期内回复力对波源A一直做负功C.经半个周期时间质点B将向右迁移半个波长D.在一个周期时间内A所受回复力的冲量为零第(2)题B超检查是医学上常用的诊断方法,其基本原理是探头向人体内发射超声波,超声波遇到人体不同的组织会产生不同程度的反射,它不会对人体产生电离作用,利用超声的回声原理进行定位,通过计算机分析产生的二维图像(如图甲所示)。
2024年黑龙江哈尔滨市第六中高三第一次模拟考试全真演练物理卷(基础必刷)一、单项选择题(本题包含8小题,每小题4分,共32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)(共8题)第(1)题安培通过实验研究,发现了电流之间相互作用力的规律。
若两段长度分别为和、电流大小分别为I 1和I₂的平行直导线间距为r时,相互作用力的大小可以表示为。
比例系数k的单位是( )A.kg·m/(s²·A)B.kg·m/(s²·A²)C.kg·m²/(s³·A)D.kg·m²/(s³·A³)第(2)题如图,空间中存在水平向右的匀强磁场,一导体棒绕固定的竖直轴OP在磁场中匀速转动,且始终平行于OP。
导体棒两端的电势差u随时间t变化的图像可能正确的是( )A.B.C.D.第(3)题2023年8月24日至今,日本政府已将福岛核电站含64种放射性元素共2.3万吨核污水排入海洋,严重影响全球生态环境。
核污水中放射性元素的半衰期长达30.17年,它的衰变方程为,下列说法正确的是( )A.X是中子B.温度降低可减小铯的半衰期C.X粒子射入匀强磁场中一定受到洛伦兹力作用D.经过60.34年,受铯137污染的土地仍含有铯137元素第(4)题如图是工业生产中大部分光电控制设备(如夜亮昼熄的路灯)用到的光控继电器的示意图,它由电源、光电管、放大器、电磁继电器等组成。
则对该装备,下列说法正确的是( )A.a端为电源负极B.流过电磁铁的电流是交流电C.电磁铁的原理是利用电流的磁效应D.只要有光照射光电管,回路中就有电流第(5)题如图所示,某种频率的单色光以入射角从空气平行入射到半圆形玻璃砖的直径一侧的界面,该种单色光在玻璃砖中的折射率为,玻璃砖的半径为R。
则在圆弧界面上有光透出部分的长度为(不考虑光线在圆弧面上的反射)( )A.B.C.D.第(6)题食盐被灼烧时会发出黄光,主要是由食盐蒸气中钠原子的能级跃迁造成的。
哈尔滨市第六中学2009届高三第一次模拟考试英语试题I.听力第一节(共5小题;每小题1.5分,满分7.5分)1. Why cannot Nancy answer the phone?A. She’s on the way to office right now.B. She’s answering another phone call.C. She’s out to buy some lines.2. What does the woman mean?A. She is willing to let the man use her dictionary.B. She doesn’t think the man needs the dictionary.C. She wonders why the man wants to use her dictionary.3. How many books can the man borrow?A. Twenty-fiveB. FiveC. Twenty4. Where is Mr. Wang now?A. In AmericaB. In JapanC. In his company5. What will the woman have to do?A. Use the tape herselfB. Keep the tape for another weekC. Return the tape to the man.第二节(共15小题;每小题1.5分,满分22.5分)听第6段材料,回答第6至8题。
6. What is the probable relationship between the two speakers?A. Doctor and patientB. Lawyer and clientC. Receptionist and patient7. What is the man’s problem?A. He has a stomachacheB. He has chest painsC. He has a sore throat8. When is the man going to Dr. Black’s office?A. Right awayB. In the afternoonC. At ten in the morning听第7段材料,回答第9至11题。
9. Why does the man want to find a nurse?A. He likes the nurse to chat with his parentsB. His mother wants a nice nurse to help herC. He needs a nurse to look after his sick father10. What do you know about the man?A. He never thought it’s so difficult to find a nurse.B. He doesn’t want his mother herself to take care of his fatherC. He cares more about his father than about his mother11. What can be inferred from the conversation?A. The man’s mother used to be a nurseB. The man’s father has been in hospital for a long time.C. The man has interviewed several nurses.听第8段材料,回答第12至14小题。
12. What may be the man’s purpose according to the conversation?A. He wants to find a suitable job.B. He wants to get a girlfriend.C. He wants to marry the woman.13. What kind of people might the man prefer?A. A serious personB. A practical personC. A rich person14. What’s the man’s possible favor according to the conversation?A. SightseeingB. Running a restaurantC. Writing听第9段材料,回答第15至17题。
15. Why does the woman want to travel after graduation?A. To enrich her experienceB. To find a good job while travelingC. To see different places described in the books16. How can we adapt to the changing environment according to the woman?A. We should be independentB. We should be willing to cha ngeC. We should get to know different people.17. What will the woman learn while traveling?A. To help peopleB. To believe herselfC. To value people听第10段材料,回答第18至20题。
18. How will buyers pay for items they have chosen on TV?A. By making a phone callB. By charging them to a credit cardC. By paying for them at the cashier’s.19. Why do some people prefer to shop in stores?A. It’s taken as a way to relaxB. They can shop around the clockC. Goods in store is a bit cheaper20. What can you infer from the text?A. Store shopping will be replaced in the future.B. Store shopping and home shopping are needed by different people.C. Shopping on the Internet is developing rapidly.II. 单项选择21. It is known that water is not _____ endless resource, nor _____ that can be made once more.A. the; 不填B. an; oneC. an; thatD. 不填;one22. I’m not sure whether I will have anything else to do tomorrow. ____,I will try every possible means to come to the party.A. Even thoughB. AnyhowC. If soD. Instead23. It is required that the students ______ mobile phones in their school, so seldom ____ them using one.A. not use; will you seeB. should not use; you will seeC. don’t use; will you seeD. not use; you will see24. With the electric map ______ in the car _____ the exact position, the driver can drive in the right direction of the destination.A. fixing; showingB. fixed; shownC. fixed; showingD. fixing; shown25. –When did you last hear ____ Jay?--He phoned me this morning, and we agreed____ a time and place to meet.A. of; toB. about; withC. from; withD. from; on26. —Tom has missed yesterday’s class, so ____ one example is necessary to get him to graspthis rule clearly.A.rather thanB. other thanC. more thanD. less than27. He spent at least as much time reading as you____ online yesterday.A. had to chatB. do chattingC. had chattedD. did chatting28. –Do the students learn any foreign language in your school?- Yes, more than one____ taught in this school.A. language isB. language areC. language beD. languages are29. It’s hard for him to play against me. I’ve got nothing to play for, but for him, he needs to win so ______.A. farB. wellC. littleD. badly30. ---You seem to get lost. Need help?--- _______.A. Yes, give me a hand, please.B. Help me find my bag, please.C. I’m looking for the No.1 bus.D. Yes, would you please help me with the bag?31. As the light turned green, I stood for a moment, not ____, and asked myself what I was going to do.A. movedB. movingC. to moveD. being moved32. Without proper lessons, you could ____ a lot of bad habits when playing the piano.A. give upB. catch upC. keep upD. pick up33. At the sight of the policeman, ___from behind the door.A. did the boy rush outB. did he sit downC. out rushed the boyD. rushing out was the boy34. He often speaks of the trouble he _____ to help the orphan.A. hadB. foundC. madeD. took35. ---We didn’t find the Blacks ____ the lecture.---No one had told them about _____ a lecture the following day.A. to attend; there to beB. attending; there beingC. attended; there beD. attend; there wasIII. 完形填空I think the most basic and powerful way to connect to another person is to listen. Perhaps, the most important thing we ever give each other is our 36 , and especially if it’s given from our hearts.When people are talking, 37 is no need to do anything but 38 them and take them in. Listen to what they are 39 . In most cases, 40 is more important than understanding. It has taken me a long time to believe in the 41 of simple saying “I’m so sorry ” when some one is in pain.One of my patients told me that when she tried to tell her story, people often 42 her to tell her that they once had 43 just like what happened to her. Finally, she 44 talking to most people.45 , we connect to each other through listening. When we interrupt what someone is saying to let him or her know that we understand, we move the focus of attention to ourselves.I have 46 learned to respond to someone’s 47 by just listening to him or her. In the old days, I used to 48 the tissue (纸巾). I realized that passing a person a tissue 49 be just another way to 50 them down and take them out of their experience of 51 . Now just listen. When they have cried all they 52 to cry, they find me there with them.This simple thing has not been that easy to learn. It certainly went 53 everything I had been taught since I was very young. I 54 think that people listened only because they did not know the answer. But now I know that a loving 55 often has more power to comfort others than words.36. A. attention B. love C. minds D. actions37. A. it B. that C. this D. there38. A. receive B. accept C. get D. bring39. A. speaking B. talking C. telling D. saying40. A. discussing B. doing C. listening D. hearing41. A. effort B. power C. treasure D. strength42. A. interrupted B. disturbed C. asked D. demanded43. A. everything B. anything C. something D. nothing44. A. began B. stopped C. started D. continued45. A. In fact B. At length C. As a result D. In other words46. A. still B. never C. even D. hardly47. A. anxiety B. laughing C. shouting D. crying48. A. give off B. reach for C. reach out D. give up49. A. might B. will C. had to D. must50. A. break B. put C. pull D. calm51. A. happiness B. sadness C. anger D. delight52. A. try B. manage C. need D. like53. A. against B. for C. out D. with54. A. always B. happened to C. seldom D. used to55. A. lecture B. understanding C. silence D. actIV. 阅读理解AI was doing some Christmas shopping in a toy store and decided to look at Barbie dolls for my nieces. A nicely dressed little girl was excitedly looking through the Barbie dolls as well. As she was looking, a little boy came to the Pokemon toys. He was dressed neatly, but his clothed were obviously old. He was with his father as well, and kept picking up the Pokemon video toys. Each time he picked one up and looked at his father, his father shook his head and said, “No.”The little girl had chosen her Barbie. However, she stopped and was watching them. Rather dejectedly, the boy had to give up the Pokemon toys and choose something else. The little girl put her Barbie back on the shelf, and ran over to the Pokemon toys. She excitedly picked up one and raced towards the checkout. I picked up my purchases and got in line behind them. Then, much to the little girl’s delight, the little boy and his father got in line behind me. After the toy was paid for and bagged, the little girl handed it back to the cashier (收银员) and whispered something in her ear. The casher smiled and put the package under the counter.I paid for my purchases and was rearranging things when the little boy came up to the cashier. The cashier checked his purchases and said, “Congratulations, you are my hundredth customer today, and you win a prize!” With that, she handed the little boy the Pokemon toys, and he could only stare in surprise. It was exactly what he had wanted!The little girl and her father had been standing at the doorway during all of this. Then they walked out. As I walked back to my car, I heard the father ask his daughter why she had done that. I’ll never forget what she said to him. “Daddy, did n’t Grandparents want me to buy something that would make me happy?” He said, “Of course they did, honey.” To which the little girl replied, “ Well, I just did!”I feel very shocked to have witnessed the true spirit of Christmas in that boy store, in the form of a little girl who understands more about the meaning of this festival than most adults I know.56. The underlined word “dejectedly” in the second paragraph probably means _____.A. delightedlyB. disappointedlyC. excitedlyD. unexpectedly57. How did the little boy get the Pokemon toys?A. His father bought him the Poknemon toys.B. Fortunately, he was the hundredth customer and won the Poknemon toys.C. The cashier felt sympathy for the little boy and gave him the Poknemon toys.D. The little girl bought the Poknemon toys for him.58. What did the little girl mean when saying “Daddy, did n’t Grandparents want me to buy something that would make me happy?”A. Her Grandparents wanted her to be happy.B. Making the little boy happy made her happy.C. The Poknemon toys made her happy.D. Her Grandparents hoped that she could help others.59. Which of the following statements is NOT true according to the passage?A. the story happened before Christmas.B. The little boy had no enough money to buy the Poknemon toys.C. Although the little girl liked the Poknemon toys very much, she gave them to the boy.D. The author was deeply moved by the behavior of the little girl.BThe day after Thanksgiving is considered the first day of the holiday shopping season in the United States. It even has a name —“Black Friday.” The name comes from the idea that this is the day when store owners begin to show a profit for the year.In the past, before calculators and computers, workers recorded the profits and losses of American businesses in special books. They used red ink to record losses. They used black ink to record profits. They used the term “in the red” to mean losing money. “In the black” meant making a profit. So “Black Friday” was the day when the store owners moved from being “in the red” to “in the black.”Many people consider “Black Friday” to be the busiest shopping day of the year. But that is probably false. Researchers say it may be the day when the largest number of people go to stores. But it is not necessarily the day when shoppers spend the largest amount of money. Some experts say Americans just want to get out of the house the day after Thanksgiving. And many stores reduce some of their prices on “Black Friday.”However, experts say that many people wait until much closer to Christmas, December 25, hoping to find even lower prices. They say the busiest day of the year in terms of the amount of shoppers and sales is usually the Saturday before Christmas.A marketing services company carried out a public opinion study about shopping last month. It asked almost one thousand Americans about their gift buying plans. One-third said they plan to go to stores to shop on the day after Thanksgiving.The study found that these shoppers are mainly young people, probably because older people do not want to deal with huge crowds. In fact, business leaders say many older Americans are doing their shopping at home -- on the computer. They say the day most people shop online is the Monday after “Black Friday.” They even have a name for it -- “Cyber Monday.”60. Which is the busiest shopping day of the year according to the text?A. Black FridayB. the day before ChristmasC. the Saturday before ChristmasD. Cyber Monday61. Which of the following is true according to the passage?A. Businessmen prefer the term “in the red” to“i n the black”.B. “Black Friday” means store owners begin to earn money.C. The largest amount of sales is made on “Black Friday”.D. The largest number of people go to stores on “Black Friday”.62. Why don’t people spend money on “Black Friday”?A. They are not satisfied with the quality of the goods sold.B. Some shops secretly increase their prices on that day.C. Too many people in the store discourage their shopping desire.D. They are waiting for a more competitive price.63. From the passage we can conclude that ________.A. Stores failed to earn much money from older people on “Black Friday”.B. “Cyber Monday” has a larger amount of sales than “Black Friday”.C. All young people prefer going to stores on “Black Friday”.D. Older people like shopping on-line because of cheaper prices.CThe following are the results of the tests done by “Family and Home Magazine”on some Pocket Tape-Recorders on the market now.Pearlcorder S702 $64This simple model at the bottom of the Olympus range scored the most points for its excellent quality of recording. Background noise hardly affects the sound and recording from a pocket isperfectly possible, but it doesn’t turn off automatically.Tape length: 30minutes per side. Weight: 240g.Sony M9 $49.95Small and very good looking, Sony’s latest offering scored most for its appearance. Sounds clear, but there is slight machine noise. The big control buttons are a great improvement on some of the complicated little controls on other tape-recorders. It doesn’t switch off automatically, but a red light shows if the machine is still running.Tape length: 60minutes per side. Weight: 195g.Sony M400 $115Lots of little control buttons that make a noise are difficult to use. Recording is good but machine noise loses points. Tape counter and automatic switch-off when tape has finished recording or rewinding are useful.Tape length: 60 minutes per side. Weight: 230g.Imperial OEM MC7 $ 29.95Cheap and simple compared with the rest, but recording is good as long as there is no background noise. Use only its own-make of cassette. No light to show it is on; no fast-forward button and the record button makes a loud noise.Tape length: 30 minutes per side. Weight: 285g.Philips 585 $80Handsome and simple to use, but recording is very poor at more than the recommended distance of 5 cm-designed for dictation. No recording light.Tape length: 15 minutes per side. Weight: 220g.64. The machine that produces the best recording with the least unwanted noise is __.A. Pearlcorder S 702B. Sony M9C. Sony M400D. Imperial OEM MC765. If you want a machine which turns off automatically and weighs very little you should choose _____.A. Pearlcorder S 702B. Sony M9C. Sony M400D. Philips 58566. Which of the following allows you to record longest but costs you least?A. Philips 585B. Imperial OEM MC7C. Sony M400D. Sony M967. What disadvantage does only the Imperial OEM MC7 have?A. No light shows when it is on.B. It requires a special cassette.C. It picks up background noise.D. The record button makes a noise.DThe US Department of Labor statistics show that there is an oversupply of college trained workers and that this oversupply is increasing. Already there have been more than enough, teachers, engineers, physicists, aerospace experts, and other specialists. Yet colleges and graduate schools continue every year to turn out highly trained people to compete for jobs that aren’t there. The result is that graduates cannot enter the professions for which they were trained and must take temporary jobs which do not require a college degree.On the other hand, there is a great need for skilled workers of all sports: carpenters, electricians, mechanics, plumbers, TV repairmen. These people have more work than they can deal with, and their annual incomes are often higher than those of college graduates. The old gap that white-collar workers make a better living than blue collar workers no longer holds true. The law of supply and demand now favors the skilled workmen.The reason for this situation is the traditional myth that College degree is a passport to aprosperous future. A large part of American society matches success in life equally with a college degree. Parents begin indoctrinating(灌输) their children with this myth before they are out of grade school. High school teachers play their part by acting as if high school education were a preparation for college rather than for life. Under this pressure the kids fall in line. Whether they want to go to college or not doesn’t matter. Everybody should go to college, so of course they must go. And every year college enrollments(入学) go up and up, and more and more graduates are overeducated for the kinds of jobs available to them.One result of this emphasis on a college education is that many people go to college who do not belong there. Of the sixty percent of high school graduates who enter college, half of them do not graduate with their class. Many of them drop out within the first year. Some struggle on for two or three years and then give up.68. It’s implied but not stated in the passage that _______.A. many other countries are facing the some problemB. white-collar workers in the US used to make more money than blue-collar workersC. fewer students will prefer to go to college in the futureD. the law of supply and demand has a strong effect on American higher education69. Which of the following is NOT a reason why college enrollments go up every year?A. Many believe the only way to success is a college education.B. Many parents want their children – to go to college.C. High school teachers urge their students to go to college.D. Every young man and woman wants to go to college.70. By saying that “many people go to college who do not belong there”, the author means that ______.A. many people unfit for college education go to collegeB. many people without enough money go to collegeC. many people going to college drop out within the first yearD. many people going to college have their hopes destroyed71. We can infer from the passage that the author believe that ______.A. every young man and woman should go to collegeB. college education is a bad thingC. people with a college education should receive higher payD. fewer people should go to college while more should be trained for skilled jobsEAnxiety is the appropriate emotion when the immediate personal terror –of a volcano, an arrow, a stab(刺伤) in the back and other disasters – is directed against one’s self-disappears.The kind of world that produces anxiety is actually a world of relative safety, a world in which no one feels that he himself is facing sudden death. The anxiety exists as an uneasy state of mind, in which one has a feeling that something unspecified(不具体的) an indeterminable may go wrong. If the world seems to be going well, this produces anxiety—for good times may end. If the world is going badly—it may get worse. Anxiety tends to be without focus; the anxious person doesn’t know whether to blame himself or other people. He isn’t sure whether it is the change in climate or the atom bomb that is to blame for this unclear sense of unease.It is clear that we have developed a society which depends on having the right amount of anxiety to make it work. While we agree that too much anxiety is harmful to mental health, we have come to rely on anxiety to push us into seeing a doctor about a symptom (症状) which may indicate cancer, into checking up on that old life-insurance policy which may have out-of-date provisions in it, into having a conference with Billy’s teacher even though his report card looks all right.People who are anxious enough keep their care insurance up, have the brakes checked, and don’t take a second drink when they have to drive. People who are too anxious either refuse togo into cars at all or drive so tensely that they help cause accidents. People who aren’t anxious enough take chance after chance, which increases the terrible accidents of the roads.72. In the world that produces anxiety, _______.A. people have sudden uneasinessB. everything goes wellC. people are clear about their lifeD. danger is almost everywhere73. The author holds that ______.A. anxiety is a good thingB. anxiety is a symptom of mental illnessC. some anxiety can lead to changes for the betterD. no anxiety is bad for society74. Accidents of the road tend to be caused by _______.A. all those who are too anxiousB. all those who have anxietyC. those who have no anxietyD. those who are not anxious enough75. The best title for the passage would be _______.A. AnxietyB. The Right Amount of AnxietyC. Anxiety vs SafetyD. Different Attitudes to AnxietyV. 短文改错Deal Paul,How is everything? I’m writing to tell you aboutthe race be held next Tuesday. You are one 76. _____of the ten runner in your class in the race, and you 77. _____need to be at school gate by 1:30 pm that day. The 78. _____race began at 1:40. All racers will start from the gate. Then 79. _____turn right and run along Zhongshan Road till you see the 80. _____traffic lights there you’ll turn right again and keep running 81. _____along Guang’an Street till you will come to the Post Office. 82. _____There turn right, go on to the bank of the river, crossing the bridge 83. _____and take a left turn. Finally, they are to reach the finish line. 84. _____By the way, if you want much information, please let me know. 85. _____VI. 书面表达高三学生面临着沉重的学习压力,很多学生利用课间十分钟的休息时间学习,实际上没有什么效果。