• 2010-2007天津学优高考网高考试题库试题及答案-云返教育

    • 函数y=sin(2x-)的图象在(-π,π)上有          条对称轴.
      答案解析
      类型: 填空题     难度系数:
    • 世界上区域的经济合作组织并不少,但凡能有较大进步的,都是在遭遇经济危机
      或发展不顺利的时候,认真总结教训,并通过加深合作,逐步形成有效的机制,进而提升了
      抗击危机的能力。东亚地区的经济合作就是一个典型,每每在经历了大的危机之后,东亚的
      经济合作都会往前迈出一大步。材料说明
      ①事物是不断变化发展的
      ②新事物的成长和壮大不是一帆风顺的
      ③矛盾双方在一定条件下相互转化
      ④事物发展是前进性与曲折性的统一
      答案解析
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    • 读某区域板块示意图,回答题。

      1.图中①、②、③、④段边界属于生长边界的有

      A.①②③ B.②③④ C.①③④ D.①②④
      2.图中a、b、c、d所在板块绝大部分为海洋的是
       
      A.a B.b C.c D.d
      答案解析
      类型: 解答题     难度系数:
    • 要将从土壤中提取的自生固氮菌与其他细菌分离开来,应将它们接种在         
      答案解析
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    • 下表所列各组物质中,不能通过一步反应实现如图所示转化的是

         物质
      选项 a b c
      A Si Na
      2SiO3SiO2
      B Fe FeCl
      3FeCl2
      C AlCl
      3Al(OH)3NaAlO2
      D Na
      2O2Na2CO3NaOH

      答案解析
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    • 向氢氧化钠溶液中慢慢地通入二氧化硫气体,反应生成正盐,当继续通入过量二氧化硫时,正盐便转化成酸式盐.
      (1)写出上述反应的化学方程式
               
               
      (2)标准状态下,向100mL2mol/L的NaOH溶液中通入3.36L二氧化硫气体,反应后溶液中溶质的成分为
               
      (3)试计算,在标准状态下,100mL2mol/L的NaOH溶液中最多可吸收多少体积二氧化硫气体?
               
      答案解析
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    • 若关于x的方程有非正实数根,则函数的值域是         
      答案解析
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    • China Earthquake Leaves 5,000 Homeless
      Beijing- An earthquake measuring 6.8 on the Richter scale left 50,000 people homeless, killed at least one person and injured 39 others in southwest China on Thurday, with more accidents expected.
      By late Thurday, 4,900 people were declared homeless after the quake destroyed their homes in a mountainous area lying on the border between Yunnan and Sichuan provinces. The dawn quake left one dead and 39 injured, destroyed 268 houses and damaging 1,132 other buildings so seriously that they were considered uninhabitable.
      Another 2,400 houses suffered less serious damage. The epicenter( 震中 ) was near scenic Lugu Lake, a tourist site, where the local school was severely damaged. Preliminary (最初的) estimates put economic losses at 180 million yuan ( 22 million dollars ).
      Governments in Yanyuan and the neighbouring Yunnan county of Ninglang has joined forces in the rescue effects and tents, clothes and medicine are badly in need of for the earthquake victims.
      The mountainous terrain, heavy rain and several aftershocks all prevented rescue effects on Thursday. The rain could cause more badly damaged homes to fall down.
      More dead and injured are expected “as rescuers have yet to reach many faraway areas”.It is very hard for rescue workers because most houses are scattered around the mountains, which are inhabited by Yi and other ethnic minority groups (少数民族)
      The quake hit the area at 5:10 a.m. Beijing time (2,110 Wednesday GMT ). Earthquake regularly affect the two counties, with two quakes measuring 5.0 and 6.2 on the Richter scale killing at least three people and injuring more than 1,500 in Ninglang in November 1998.
      The area is about 100 kilometers from the historic Yunnan town of Lijiang, which was struck in 1996 by an earthquake that killed more than 250 people anf injured 14,000.
      ( Reports from China Daily, May 25, 2001 )
      6. The earthquake took place _______ .
      A. in the early morning B. at noon
      C.in the afternoon D. at night
      7. All of the following things belong to the things that are most needed after the earthquake except _______ .
      A. clothes B. food C. medicine D. tents
      8. The author’s purpose in writing the passage is to _______ .
      A.tell us the earthquake taking place in Yunnan has caused 5,000 homeless
      B. warn the people in mountainous areas in Yunnan to take care of earthquake
      C.call on more help from the people all over the country
      D. analyze why the earthquake took place in this area
      9. After reading the passage we know __________ .
      A. the biggest earthquake happened in China in Ninglang in 1998
      B. there will be no more than 2 persons dead in the earthquake
      C. the earthquake took place in the places where minorities live
      D. the total losses will add up to no more than 180 million yuan
      10. “The two counties” here refers to ________ .
      A. Yunnan and Sichuan B. Yanyuan and Ninglang
      C. Yanyuan and Yunnan D. Yunnan and Ninglang
      答案解析
      类型: 阅读理解     难度系数:

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