高二限时训练1
高二语文《中国古代诗歌散文欣赏》第二单元《梦游天姥吟留别》限时训练题(1)+Word版缺答案.doc
《梦游天姥吟留别》限时练习题（1）时间：50分钟班级：_____ _____组_____号姓名：____________ 分数：__________第Ⅰ部分一、写出《梦游天姥吟留别》中的相关文学常识及1段的重点字词第Ⅱ部分一、选择题（每题7分，共63分）1．下列词语中，加点字的读音与所给注音完全相同的一项是( )A．shàn 剡．溪嬗．变讪．笑舢．板 B．jī木屐．赍．助及笄．跻．身C．mínɡ日暝．冥．思酩．酊香茗． D．zhé折．本谪．居海蜇．蛰．伏2．下面的词语全部正确的一项是( )A．瀛洲剡溪渌水荡漾青云梯 B．层颠列缺丘栾石扉水澹澹C．倚石青冥訇然魂悸忽已瞑 D．长嗟浩荡霹雳崩崔谢公屐3．下列加点的词语解释有误的一组是( )A．烟涛微茫信．难求(确实) 势拔．五岳掩赤城(超出)B．忽魂悸．以魄动(惊动) 失向来．．之烟霞(先前)C．天姥连天向天横．(遮断) 虎鼓瑟兮鸾回．车(回旋、运转)D．迷花倚石忽已暝．(睡着) 熊咆龙吟殷．岩泉(震响)4．下列加点词解释不正确的一项是( )A．愿逐月华流照君逐：逐渐 B．月照花林皆似霰霰：雪珠C．青枫浦上不胜愁胜：承受 D．应照离人妆镜台离人：离家在外的人5．下列加点的词意义和用法相同的一项是（）A. ①云霞明灭或．可睹②一食或．尽粟一石B. ①我欲因．之梦吴越②蒙旧业，因．遗策C. ①且．放白鹿青崖间②河汉清且．浅，相去复几许D. ①安．能摧眉折腰事权贵②沛公安．在6．下列加点词词类活用情况与众不同的一句是( )A．云青青兮欲雨． B．栗．深林兮惊层巅 C．然而不王．者 D．虎鼓．瑟兮鸾回车7．下列对文章内容的表述不正确的一项是( )A．“天台四万八千丈，对此欲倒东南倾”并非实指，只是极言其高；诗人并不直接说天姥山多高，即用比较和衬托的手法，把那高耸入云的样子写得淋漓尽致。
B．诗人完全摆脱了诗律的束缚，随着梦境的变化、情感的运行而遣词造句。
江苏省泰兴市第一高级中学2015-2016学年高二政治上学期限时训练一(选修)
泰兴市第一高级中学2015年秋学期限时训练（一）高二政治（选修）2015.10 一、单项选择题：本大题共33小题，每小题2分，共计66分。
在每题给出的四个选项中，只有一个选项是最符合题意的。
1、从古到今，各种哲学流派繁多，有些根本观点相同，有些根本观点完全相反，但无论哪种哲学，都是①系统化理论化的世界观②各门具体科学的总和③世界观与方法论的统一④各门具体科学的基础A.①②B.①③C.②③D.③④2、哲学的基本问题是A.思维与存在有没有同一性的问题B.思维与存在何者为本原的问题C.思维能否正确认识存在的问题D.思维与存在的关系问题3、下列选项能够正确反映唯物主义三种基本形态演进顺序的是①存在就是被感知②人是机器，思想是人脑的特性③世界是一团永恒的活火④物质是标志客观实在的哲学范畴A.③→④→②B.②→③→④C.③→②→④D.②→①→③4、哲学史上存在着唯物主义和唯心主义两大阵营的对立。
下列选项中能体现这种对立的是①乐极生悲削足适履②形谢神灭理生万物③高瞻远瞩拔苗助长④因势利导心外无物A.①③B.②④C.①②D.③④5、中国特色的社会理论体系推动时代的步伐，说明它是（）A．社会变革的决定力量 B．社会变革的先导C．经济工作的中心 D．政治斗争的核心6、马克思主义哲学的产生实现了哲学史上的伟大变革。
它第一次在科学的基础上实现了①世界观与方法论的统一②唯物主义与辩证法的有机结合③科学性与革命性的统一④唯物辩证的自然观与历史观的统一A.①②B.①③C.②④D.③④7、“结庐在人境，而无车马喧。
问君何能尔？心远地自偏。
”在生活中，这一思想对很多人有借鉴意义：心态好就能超脱世俗杂事的困扰。
在哲学上，这一思想属于A.客观唯心主义B.主观唯心主义[来源:]C.古代朴素唯物主义D.形而上学唯物主义8、德国物理学家朗克说：“研究人员的世界观将永远决定着他的工作方向。
”这表明( )①世界观决定方法论，方法论体现世界观②哲学给具体科学研究以世界观和方法论指导③具体科学的进步推动着哲学的发展④哲学是科学的世界观和方法论A．①② B．①④C．②③ D．②④9、对于天体的演变，张衡认为：“元者，无形之类，自然之根，作于太始，莫之与先。
高二限时训练
高二物理限时训练（一）一、选择题：（每题8分）1、某电解池，如果在1s时间内共有5×1018个二价正离子和1.0×1019个一价负离子通过面积为0.1m2的某截面，那么通过这个截面的电流强度是：（）A、0B、0.8AC、1.6AD、3.2A2．两个相同的金属小球，带电量之比为1∶7，相距为r,两者相互接触后在放回原来的位置上，则它们间的库仑力可能为原来的（）A．4/7 B. 3/7 C. 9/7 D. 16/73、图1展示了四种导电器件的伏安特性曲线，其中满足欧姆定律的是（）4、关于电动势，下列说法中正确的是（）A、一个电源的电动势的大小只由电源本身决定B、因电动势的单位和电势差相同，所以电动势实质上就是电势差C、一个电动势为1.5V的电池接入电路时，若有1C的电荷量通过电路，就有1.5J的化学能转变成电能D、电压表接到电源两极时，测得的就是电动势5、如果不计重力的电子，只受电场力作用，那么，电子在电场中可能做（）A．匀速直线运动 B．匀加速直线运动 C．匀变速曲线运动D．匀速圆周运动6、如图，在水平放置的已经充电的大平行板电容器之间，有一带负电的油滴处于静止状态，若某时刻油滴的电荷量开始减小，为维持该油滴原来的静止状态应A．给平行板电容器充电，补充电荷量B．给平行板电容器放电，减少电荷量C．使两金属板相互靠近些D．使两金属板相互远离些7．如图所示，在绝缘的水平面上方存在着匀强电场，电场方向如图所示，水平面上的带电金属块在水平拉力F的作用下沿水平面移动．已知金属块在移动的过程中，外力F做功32J，金属块克服电场力做功8.0J ，金属块克服摩擦力做功16J，则在此过程中金属块的A．动能增加8.0J B．电势能增加24JC．机械能减少24J D．机械能增加48J二、计算题：8．（本题12分）如图所示，真空中有两个静止点电荷，Q= ＋2×10-4C，q=－2×10-5C，它们相距r=2m，求：（1）q受的电场力．（2）q所在的B点的场强E B9、（本题15分）如图所示，在匀强电场中，有A、B两点，它们间距为2cm ，两点的连线与场强方向成60°角。
高二物理第16次限时训练---闭合电路欧姆定律(1)
高二物理第16次限时训练（刘鑫）1．若E 表示电动势，U 表示外电压，U'表示内电压，R 表示外电路的总电阻，r 表示内电阻，I 表示电流，则下列各式中正确的是（ ）A. IR U ='B. U E U -='C. Ir E U +=D. E rR R U +=2．四个小灯连接成如图所示电路，合上电键S ，各灯均正常发光.若小灯L 4灯丝突然烧断，则其余各灯亮度的变化情况是（ ）A. L 1变亮，L 2L 3均变暗B. L 1变暗，L 2L 3均变亮C. L 1变暗，L 2熄灭，L 3变亮D. L 1L 2变亮，L 3变暗3．如图所示的电路中，当可变电阻R 的值增大时（ ）A.ab 两点间的电压U ab 增大.B.ab 两点间的电压U ab 减小.C.通过电阻R 的电流I R 增大.D.通过电阻R 的电流I R 减小.4．如图所示的电路中，A 、B 、C 、D 是四只相同的灯泡.当滑动变阻器的滑动片向下滑动时，下列说法正确的是 ( )A.A 灯变亮B.B 灯变亮C.C 灯变亮D.D 灯变亮5．如图所示，电源电动势E ＝6V ，当开关S 闭合后，小灯泡L 1和L 2都不亮.现用一电压表检测故障，已测得U ac ＝U ad ＝U ae ＝6V ，U ab ＝0，那么以下判断正确的是 ( )A.含L1的ab 段电路断路，其他部分无问题B.含L 2的bc 段电路断路，其他部分无问题C.含R 的cd 段电路断路，其他部分无问题D.ab 段和bc 段电路可能都是断路的6．在如图所示的电路中，开关4321S S S S 、、、均闭合，C 是极板水平放置的平行板电容器，板间悬浮着一油滴P ，问断开哪个开关后P 会向下运动（ ）A. 1SB. 2SC. 3SD. 4S7．下图所示的两种电路中，电源相同，各电阻器阻值相等，各电流表的内阻相等且不可忽略不计，电流表4321A A A A 和、、读出的电流值分别为4321I I I I 和、、，下列关系式中正确的是（ ）A. 31I I =B. 41I I <C. 12I 2I =D. 432I I I +<8．如图所示电路，E=6V ，r=1Ω，Ω=4R 1，Ω=11R 2，Ω=12R 3，电压表和电流表都看作理想电表，求：（1）当S 断开时电流表与电压表的示数；（2）当S 闭合时电流表与电压表的示数。
高二语文限时训练
高二语文周日测试一、现代文阅读（9分，每小题3分）阅读下面文段，完成1～3题。
根据史料记载来看，富民不仅向佃户提供土地、耕牛、种子、农具及其他生产生活资料，投入大量生产成本，而且对生产过程也非常关心。
苏洵说富民对佃户“鞭笞驱役”，应有言过其实者，但其所反映的富民驱使督促佃客耕种土地，并对相关生产活动进行管理，则应是租佃制下富民群体之共同行为特征。
胡宏言，“夫客户，依主户以生，当供其役使，从其约束者也”。
其所谓“约束”者，当是指富民主户对客户的日常管理。
他还列举了一些不从“约束”的表现，其中一条便是“习学末作，不力耕桑之业”。
由此可见富民对佃客的日常“约束”，一个重要的方面就是对其生产过程进行管理与监督。
这还可用宋代官田出租的“监庄”之制观照加以说明。
官府将系官之田出租给佃户，招募上三等富户充当“监庄”来进行监督与管理，并可影响到其秋成收入；官府根据所收秋成之多寡推赏，实质是对富民“监庄”之功效高低的酬奖；官府只招上三等富户充当监庄，说明富民已具备相关“监庄”之经验，而其经验的获得，当与他们对其私有庄田出租管理的实践密不可分。
进而言之，富民将私田出租，其监督与否及管理水平之高低，应同样会影响其收成之多寡，也就决定了富民一般会对其佃户生产进行“监庄”性质的管理。
实际上，富民对佃客生产过程实施的监督与管理是全面而细致的，包括收获环节也不放过，即使遭遇酷暑天气时也是如此。
正因为富民参与到生产活动的各个环节，其田“种之常不后时，而敛之常及其熟。
故富人之稼常美，少秕而多实，久藏而不腐”，提高了粮食产量与品质，增加了收成，与“种之常不及时，而敛之常不待其熟”，由此难获“美稼”的少地自耕者形成鲜明对比。
从佃客方面来讲，虽然取得完整的土地佃权进行经营是其根本利益之所在，但由于其贫困的经济状况，需要富民“借贷赒给无所不至”，甚至“借贷种种，与夫室庐牛具之属，其费动百千计，例不取息”。
而富民关心佃户的生产生活条件，“本望租课，非行仁义”，为保证其收成所得，他们往往要考虑对佃户的生产过程进行干预，迫使佃户接受一些影响其自主经营的契约条款。
2021年高二上学期限时训练一语文试题 Word版含答案
2021年高二上学期限时训练一语文试题 Word版含答案xx.10说明：1.满分160分，150分钟。
文科附加题10分，不加时间。
2.所有选择题的答案，请按照相应序号填涂到答题卡上。
一、语言文字运用（27分）1．在下面一段话的空缺处依次填入词语，最恰当的一组是（3分）（）（1）尽管喜欢二胡的__________，它仍是我不敢触碰的乐器，因为琴筒一侧蒙着显眼的蟒皮。
（2）因为睡不着，打开窗帘，遥望星空，________满天，斜月晶莹，薄雾似轻纱漫卷，_________。
我思念那个小山村，那个让我魂牵梦绕的地方。
A.如歌如泣星光诗意盎然B.如歌如泣星斗诗意朦胧C.如泣如诉星汉如梦如幻D.如泣如诉星斗诗意盎然2.下列句子中加点的成语运用不正确的一项是（3分）（）A. 眼睛只能感受明暗，除了很近的物体，蛇不能辨别线条和轮廓，蛇从本质上认识到无．所不在．．．的斑驳──好像表面涂层已经剥落的破旧屋舍，蛇最能比较现实与天国不同。
B. 我在水族馆里看到蓑鲉，树起的背刺和层层交叠的鳍叶使它有若非洲部落的酋长，蓑鲉身上有序地排布着斑点和条纹，像一张藏宝地图那样暗怀不为人知．．．．的玄机。
C. 譬如粘一棵柳树吧，干和枝的每条线条该多长，该怎么弯曲，他们能把铜丝恰如其分．．．．地剪好曲好，然后用钳子夹着，在极稠的白芨浆里蘸，粘到铜胎上去。
D. 那么多密密麻麻的铜丝没有一条不是专心一志粘上去的，粘上去以前还得挖空心思．．．．把它曲成最适当的笔画，那是多么大的工夫！3.下列各句中，有语病的一组是（3分）（）A.我借着爱的轻翼飞过园墙，因为砖石的墙垣是不能把爱情阻隔的；爱情的力量所能够做到的事，它都会冒险尝试，所以我不怕你家里人的干涉。
B. 中学地理课本向我展示由外太空拍摄到的卫星图片：藏蓝的深渊里，地球孤独转动，布满褐色的古怪斑纹。
C.由于美术家和掐丝工人的合作，使景泰蓝器物推陈出新，博得多方面人士的爱好。
D.结果没有使我失望，我经常获得在家养状况下的变异的知识，虽然不完备，却能给研究提供最良好的和最安全的指导。
利辛一中高二语文限时训练(一)参考答案
参考答案1.C【解析】叹为观止：指赞美看到的事物好到极点。
蔚为大观：丰富多彩，成为盛大的景象(多指文物等)。
结合语境，第一处应选“叹为观止”。
兴起：开始出现并兴盛起来。
起步：开始走；比喻事业、工作等开始。
结合语境，第二处应选“兴起”。
具备：具有；齐备。
具有：有(多用于抽象事物)。
结合语境，第三处应选“具备”。
冰山一角：比喻事物已经显露出来的一小部分。
沧海一粟：大海里的一颗谷粒，形容非常渺小。
结合语境，第四处应选“冰山一角”。
2.B【解析】分析要补写的句子所在的语境，补写的内容应该是对前文为电视观众提供一种完全不同的“观看体验”的具体说明，据此审读选项，A项中两个“观众”的含义不一致，造成语意含混；C项中后一个“观众”前缺少一个词“让”，导致表述中途易辙，语意不畅；D项强加因果，语意、语气与前文不衔接。
3.D【解析】文中画线句有两处语病：一是从体育运动竞赛常理言，“运动员”排前面更恰当；二是“制定”后面缺少宾语。
综上所述，修改最恰当的为D项。
4．A【解析】舍下：舍间。
谦称自己的家。
故用于“接受师长邀请”不得体。
5．A【解析】要断句的语段内容是叙述传主的一段经历，按顺序思考可判定正误。
“从荣诛”是一个完整的句子，其后应断开，排除C、D两项；“俄”是个表时间的副词，意为“不久”，“以”是个表原因的介词，与“从荣许归葬”联系紧密，故“俄以从荣许归葬”间不可断开，故选A项。
原文加上标点为：从荣诛，坐除籍，流庆州。
清泰初，移华州。
俄以从荣许归葬，放还陕。
6. D【解析】封邑除了赐给诸侯王外，还会赐给有功的卿大夫，“采地”“采邑”即指卿大夫的封邑。
7. C【解析】“积极举荐贤能之人”有误，由原文“时多进策人……考定升降”，可知当时进献策略的人很多，鱼崇谅只是依照命令，召集考试，考定这些进策人的升降，而不是举荐他们。
8.①诏书命令(他)侍奉母亲后回到朝廷，鱼崇谅再次上表陈述因为母亲年老多病，请求奉养终身，诏令嘉奖但不允许。
高中英语限时训练（高二）
⾼中英语限时训练（⾼⼆）⾼中英语限时训练（⾼⼆）⼀、完形填空My life suffered a lot after my father’s death. I had to look after my sick mother and two younger brothers. As the eldest son，I had no choice but to 1 school and work in a factory.A thread of hope flashed in those 2 days suddenly. It was a rainy dusk when I put myself in the rain and walked in the street.Suddenly the rain stopped! 3 , I raised my head, and found that “the sky” was in fact a dark blue 4 . Then I heard a deep voice. “Why not run 5 an um brella?” A middle-aged man with one leg on crutch(拐杖) said to me, “If you run, you would get 6 .”I shook my head, but after a second I thought: Right, 7 ? His words shocked me deeply. Without my father's 8 , could I only bea 9 to the fate (命运)?While 10 together in the rain, I knew that he was a promoter from the city, and he received an order and spent 11 time on it. Looking at this guy, I had no sympathy but12 . I took the umbrella from his hand and he told me that he once had 13 of beinga policeman, but an accident 14 his dream. Though his present work was 15 and did not suit for his 16 , every outing was a wonderful start to him. He was glad that he didn’t 17 heart and still “ran” on the road of life...18 by the man’s remarks, I went to a city in the south and became an insurance representative. After two years’ “running”, I got 19 and my family turned better gradually.Everything is so simple: to run without an umbrella! When you 20 the rainy season of your life, there will be bright sky ahead of you.1. A. desert B. dismiss C. reject D. quit2. A. dark B. bright C. white D. colorful3. A. Interested B. Confused C. Excited D. Disappointed4. A. hat B. raincoat C. umbrella D. jacket5. A. with B. without C. for D. to6. A. drier B. warmer C. less wet D. less cold7. A. why not B. or what C. so what D. who knows8. A. praise B. protection C. comfort D. attention9. A. slave B. master C. guest D. commander10.A. running B. wandering C. jogging D. walking11. A. much B. no C. little D. some12. A. envy B. admiration C. love D. care13. A. approved B. known C. spoken D. dreamed14. A. defeated B. damaged C. ruined D. wiped15. A. boring B. demanding C. rewarding D. tiring16. A. hand B. foot C. arm D. leg17. A. lose B. take C. change D. gather18. A. Amused B. Terrified C. Encouraged D. Shocked19. A. anywhere B. everywhere C. somewhere D. nowhere20. A. run into B. run across C. run away with D. run out of⼆、阅读理解AShanghai Xintiandi Style Mall is filled with a festive mood, featuring large-scale equipment, knit works and various activities, under the theme "kiss"."Kissing is seldom taken as the theme of artworks because in oriental (东⽅的) culture, people restrain themselves from expressing their emotions," says Jiang Shan, who is in charge of the exhibition."Through the exhibition, we hope to encourage people to be confident and brave in expressing their love."Inside the mall, which covers a large area from Zizhong Lu (Road) to Fuxingnan Lu (Road), dozens of colorful decorations, including balloons, lollipops and lip-shaped decorations are hung on the walls and from the ceiling.Among the decorations, a bright-colored wool artwork attracts most eyeballs and brings about a feeling of warmth.The designer, Gu Yeli, says the art piece, Kiss Forest, was inspired by US artist Andy Warhol's 1963 experimental film Kiss, which featured various couples kissing for three and a half minutes each. Gu also organizes a small workshop to teach knitting (编织) to children.Artist Wang Xuejun sets up a stainless-steel mirror at the mall's gate leading to Zizhong Lu. Visitors, including men, are invited to put on lipstick and kiss the mirror, thus kissing themselves.The Beast Floral Shop, a flower shop in Shanghai, contributes two walls of flowers that are made into the shape of a book, named Kiss Book. Artifacts (⼿⼯艺品) of bees and butterflies are fixed among the blossoms, kissing the flowers. The work represents love and harmony in nature.Architect Ma Ke creates a Kiss Bridge with transparent (透明的) acrylic boards and ceramic （陶瓷的）fishbowls. Bridges are often spots for dating lovers in traditional Chinese folk stories and the goldfish in the bowls are witnesses of the lovers' kisses.In the south plaza, an18-meter-high interactive tree-shaped light equipment encourages people to kiss. Each kiss turns a certain light on, reminding audiences of their sweet childhood memories of kisses.At the side of the tree is a counter, in which each kiss is counted and represents a donation to charity organizations.21. What is the main idea of the article?A. It tells people how important kisses are to life.B. It describes what Shanghai Xintiandi Style Mall looks like.C. It introduces an exhibition under the theme “kiss”.D. It introduces various activities in Shanghai Xintiandi Style Mall.22. What does the underlined sentence in Paragraph 2 mean?A. people encourage themselves to express their emotions.B. people discourage themselves from expressing their emotions.C. people teach themselves to express their emotions.D. people learn a lot from expressing their emotions.23. What can we learn from the article?A. Most people are interested in Jiang Shan’s artpiece, which brings about a feeling of warmth.B. Most visitors will kiss each other in front of the stainless steel mirror at the gate.C. All the decorations in the mall are aimed at encouraging lovers to express their love bravely.D. The 18-meter-high interactive tree-shaped light equipment will be on for each kiss.24. The article above probably is taken from a ____________.A. text bookB. science and technology magazineC. news websiteD. travel leafletBMarc Briol started his career at the age of 17 as an apprentice (学徒) at a hotel in Germany, but his experience in the kitchen started at 12, when he had to cook his own meals after school. The young chef with Belle-Vue, the European restaurant at the Grand Hyatt Shenzhen, believes a chef has to be honest and true to his food."If you look at the plate, it says exactly what I have done. You cannot cheat. If you try to take a shortcut, you will affect the taste," he says. "It is also what I appreciate in my job ---- direct communication with my customers."At just 23, Briol was appointed chef of Belle-Vue in September, when his enthusiasm and inspiration won recognition."I am so pleased to welcome Marc to lead the culinary (烹饪) team at Belle-Vue. His creativity and passion will bring new inspiration to the restaurant, and create exciting dining experiences that are approachable and fun," says Martin Riehl, executive chef of the hotel.Briol creates and combines classic dishes with his own understanding and his signature dishes are featured in the Best of Belle-Vue selection. Most of the dishes are presented in two colors ---- green and red."It is a nice contrast with the white plate at the moment. And it reminds me of something happy and merry."The colors are updated according to season, and also on request from regular customers. Although Briol has only been in Shenzhen about three months, he has fallen in love with Cantonese food."I love dim sum ---- all the steamed vegetables, chicken soup and black tea."One interesting thing about Shenzhen is how people treat food, he says. "If you go to the local market, you will see things such as snakes, which would belong to the zoo back in my country."He says that in China, everything has a reason. People respect food, which is not always done in Europe."In China, if you eat something, it is because it is healthy for your body."As for the cooking, he says, it is not easy to get raw materials for a European restaurant in Shenzhen."It took me about a month to get the fish I want for my cooking. We had to call Shanghai or Hong Kong to ship the food here," he says. "When I worked in London, the process was much easier."He gets much of his inspiration from food blogs and friends."About 80 percent of my friends come from restaurants, and they are bakers, chefs. We will meet and talk to get new ideas for food." Other sources of inspiration are traveling and cookbooks.During his day off, he will also try to explore new restaurants in Shenzhen."Food is all my life. You have to pay lots of effort to get it done, to improve yourself."25. Marc Briol has ever worked in _________ according to the article.A. France, Germany and ChinaB. Germany, England and ChinaC. France, China and EnglandD. Germany, England and France26. Which sentence can best reflect that Marc Briol loves his career?A. “If you look at the plate, it says exactly what I have done.”B. “It’s also what I appreciate in my job ---- direct communication with my customers.”C. “It’s a nice contrast with white plate at the moment.”D. “Food is all my life.”27. Why is Martin Riehl pleased to have Marc Briol lead the culinary team at Belle-Vue?A. Because he appreciates Marc’s enthusiasm and creativity.B. Because Marc has much experience in cooking.C. Because Marc is honest to his food.D. Because Marc was an appointed chef.28. Marc Briol gets much of his inspiration from many sources EXCEPT ________.A. food blogsB. travelingC. cookbooksD. food colorsCChina faces $176bn bill to clean up air pollutionCleaning up China’s air pollution will cost 1.75 trillion yuan ($176b) between2013 and 2017, a high-ranking environmental official has estimated.Wang Jinnan, deputy head of the Chinese Academy for Environmental Planning, said that the investment ---- part of an anti-pollution "action plan"announced by China's cabinet in September ---- “would drive up GDP by nearlytwo trillion yuan ($202b) and create over two million jobs,” China’s official newswire Xinhua reported.The total cost will be higher than the 2012 GDP of most countries, including Finland, Israel and Portugal.“36.7 percent of the investment, or 640 billion yuan ($64.5b) should go on cleaning up industry, followed by 490 billion yuan (28.2 percent) on cleaner energy sources. Cleaning up motor vehicles will absorb 210 billion yuan,” Xinhua re ported, citing (引⽤) Wang.In 2013, broad areas of China recorded their highest air pollution levels in 52 years, causing widespread anger over the massive environmental disaster shaped by decades of unchecked economic growth.While Beijing has long been known for its pea-soup air, a number of traditionally clearer cities, including Shanghai and Harbin, have registered pollution levels high enough for local authorities to ground flights, close schools and pull cars from the roads.On Friday, Shanghai’s con centration of airborne PM 2.5 – particulate matter small enough to stay deep within the lungs –rose to 214 micrograms per cubic meter, three times China’s national limit. The official Shanghai Environmental Monitoring Center warned children and the elderly to stay indoors.In its five-year action plan, China's State Council promised to reduce the level of airborne particulate matter by at least 10% in major cities by 2017.Yet many smog-related government measures, such as controlling street-side barbecues, have drawn criticism for polishing over the problem. In October, one Beijing official blamed the smog on “the traditional way of cooking Chinese dishes.”In response, many Chinese people have taken measures into their own hands. Face masks have become a fashionstatement; air purifier sales have rapidly increased. An elementary school in north China’s Shijiazhuang, one of the country’s most polluted cities, has begun teaching its students a smog-defying aerobics (健美操) routine involving acupuncture points associated with respiratory（呼吸）health. Last week, a hospital in the southwestern Chinese city Chengdu opened a “smog clinic” to treat air pollution-related diseases such as coughs and asthma; it has been treating roughly a dozen patients a day. "We should not fear smog. It's preventable and curable," says a poster hung by its entrance.29. What is the major cause of the heavy smog in China according to the article?A. The investment in an anti-pollution "action plan" is not enough.B. The economic development has not been carefully checked in the past years.C. Environmental Planning has not been carried out for decades of years.D. The traditional way of cooking Chinese dishes has produced too much smoke.30. To avoid the harm on their health, people suffering from the smog in China are doing the following EXCEPT _______.A. wearing face masks and use air purifiersB. warning children and the elderly not to go outdoorsC. criticizing many smog-related government officialsD. opening “smog clinics” to t reat air pollution-related diseases31. After reading the article, most readers may feel ___________.A. Angry but hopelessB. Tired and indifferent (漠不关⼼)C. Concerned but positiveD. Depressed and annoyedDHi, everybody. Over the past couple months, most of the political headlines you’ve read have probably been about the government shutdown and the launch of the Affordable Care Act(平价医疗法案). And I know that many of you have rightly never been more frustrated with Washington.But if you look beyond those headlines, there are some good things happening in our economy. And that’s been my top priority（优先考虑）since the day I walked into the Oval Office.After decades in which the middle class was working harder and harder just to keep up, and a punishing recession（衰退）that made it worse, we made the tough choices required not just to recover from crisis, but to rebuild on a new foundation for stronger, more durable economic growth.Five years later, we have fought our way back. Our businesses have created 7.8 million new jobs in the past 44 months. Another 200,000 Americans went back to work last month.The American auto industry has come back with more than 350,000 new jobs –-- jobs putting out and selling the high-tech, fuel-efficient cars the world wants to buy. And they’re leading the charge in a business that has added jobs for the first time since the 1990s –-- a big reason why our businesses sell more goods and services “Made in America” than ever befor e.We decided to stop our addiction to foreign oil. And today, we produce more renewable energy than ever, more natural gas than anybody, and for the first time in nearly 20 years, America now produces more oil than we buy from other countries.We decided to fix a broken health care system. And even though the task has been rough, so far, about 500,000 Americans gain health coverage starting January 1st. And by the way, health care costs are growing at the slowest rate in 50 years. And one more thing: since I took office, we’ve cut our deficits (⾚字) by more than half. And that makes it easier to invest in the things that create jobs –-- education, research, and so on.Imagine how much farther along we could be if both parties were working together. Think abo ut what we could do if the few didn’t hold the economy hostage (⼈质) every few months, or waste time on dozens of votes to repeal the Affordable Care Act rather than try to help us fix it.In the weeks ahead, I’ll keep talking about my plan to build a bette r bargain for the middle class. Good jobs. A good education. A chance to buy a home, save, and retire. And yes, the financial security of affordable health care. And I’ll look for any willing partners who want to help.Because of your hard work and tough s acrifices over the past five years, we’re pointed in the right direction. But we’ve got more work to do to keep moving that way.And as long as I’m President, I’ll keep doing everything I can to create jobs, grow the economy, and make sure that everyone who works hard has a chance to get ahead. Thanks, and have a great weekend.32. Which of the following is not the reason for people’s frustration with the government?A. The government shutdownB. Unemployment rateC. The addiction to foreign oilD. Cancelling the Affordable Care Act33. Why does the president mention more goods and services “Made in America”?A. To show that American goods and services are very popular.B. To indicate that American people should be dependent on themselves.C. To show that the employment rate has been increased.D. To show that American auto industry enjoys high technology.34. What’s the meaning of the underlined word “repeal”?A. put an end toB. try hard to fixC. make strongerD. get accustomed to35. According to the speech, which of the following can be implied?A. American people have every reason to feel frustrated with the government.B. Health care costs are growing at the slowest rate in 50 years.C. The president feels sorry that the economy is not moving in the right direction.D. Some government officials don’t agree with the president on the medical care system.⾼⼆英语限时训练答案完型：DABCB / CABAD / ABDCB/ DACCD阅读：A：C B D C B： B D A D C：BCC D：DCAD。
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高二数学限时训练（1）
一、选择题：（42分）
1、在ABC ∆中，a ＝3，A ＝30°，B ＝60°，则b=( )
A ．3 3 B.3 C.32
D ．2 3 2、在等差数列{}n a 中,10,2531=+=a a a ，则=7a （ ）
.5A .8B .10C .14D 3、已知ABC ∆的面积为2
3，且3,2==c b ，则∠A 等于（ ） A ．30° B ．30°或150° C ．60° D ．60°或120°
4、等差数列{}n a 的公差为2，若2a ，4a ，8a 成等比数列，则{}n a 的前n 项和n S =
（ ）
（A ） ()1n n + （B ）()1n n - （C ）()
12n n + (D) ()12n n -
5、设{}n a 是首项为1a ，公差为-1的等差数列，n S 为其前n 项和.若124,,S S S 成等比数列，则1a =（ ）
（A ）2 （B ）-2 （C ）12 （D ）12
- 6、设等比数列{}n a 的前n 项和为n S ，若243,15,S S ==则6S =（ ）
A ．31
B ．32
C ．63
D ．64
7、设ABC ∆的内角A,B,C 所对的边分别为a ，b ，c ，若A a B c C b sin cos cos =+，则ABC ∆的形状为( )
A ．直角三角形
B ．锐角三角形
C ．钝角三角形
D ．不确定
二、填空题：（24分）
8、在ABC ∆中，3,2,60==︒=BC AC A ,则AB =_________； 9、在ABC ∆中，1a =，2b =，1cos 4C =，则c = ；s i n A = . 10、等比数列{}n a 的各项均为正数且154a a =，则
2122232425log log log log log a a a a a ++++＝ .
三、解答题：（34分）
11、设ABC ∆的内角,,A B C 所对边的长分别是,,a b c ，且3,1b c ==，ABC ∆的面积为2，求cos A 与a 的值．
12、在等比数列{}n a 中，253,81a a ==.
（1）求n a ；
（2）设3log n n b a =，求数列{}n b 的前n 项和n S .。