【1】下列有关我国位置和疆域的叙述，正确的是（ ）

A.我国南北跨纬度近50度，大部分位于温带和寒带

B.我国最大的岛屿是海南岛

C.濒临的海洋自北向南依次是渤海、东海、黄海、南海

D.领土南北跨度广，导致了我国南北部的气候差异

【2】关于中国海陆位置优越性的描述，不正确的是（ ）

A.我国领土南北跨度大，为我国发展多种农业经营提供了有利条件。

B.我国海陆兼备，便于开发海洋资源，发展海洋事业。

C.我国东西跨度大，西部深入大陆内部，与多国接壤，陆路交通便利。

D.我国东临大西洋，海岸线漫长，多优良港湾，海运便利。

【3】歌曲《我爱你——中国》中，“当灿烂的太阳跳出了你东海的碧波，你的帕米尔高原上依然是群星闪烁；当你的北国还是银装素裹的世界啊！你的南疆早已到处洋溢着盎然的春色”这一现象差异的主要原因分别是（ ）

A.纬度因素、经度因素B.经度因素、纬度因素

C.地形因素、海陆因素D.海陆因素、地形因素

（1）三江源地区是世界上海拔最高，面积 _____的高原_______，有“__________”的称号，位于______省______部，是黄河、______江和________江的发源地。

（2）三江源地区居住的少数民族是____族，是畜牧业为主的区域，主要牲畜品种有_____牛等，当地生态环境脆弱，过渡______、乱采滥挖等不合理的人类活动，加速了生态环境的恶化。为此，国家设立了三江源自然保护区。

（3）三江源地区属于青藏高原地区，该地区突出的自然环境特征是______，该区域夏季气温_____，昼夜温差______，丰富的资源有___________、__________。（至少答两种）

【1】下列民俗活动与对应民族关联错误的是（　　）

A.泼水节﹣傣族B.丰收节﹣高山族C.雪顿节﹣藏族D.端午节赛龙舟﹣蒙古族

【2】我国少数民族主要聚居在（　　）

A.东南、西北和东北地区B.东南、东北和中部地区

C.东北、西北和西南地区D.西南、西北和东部地区

据此完成下面小题。

【1】他们经过的铁路干线可能是（ ）

A.京沪线B.兰新线C.宝成线D.陇海线

【2】青藏高原的自然环境十分独特，在当地不可能看到的景观是（ ）

A.山环水绕、沃野千里B.湖泊众多、沼泽广布

C.冰川广布、雪山连绵D.蓝天白云、牛羊成群

A.西北 华北 东北B.西南 东南 中南

C.西南 西北 东北D.华南 西南 中南

What has happened? These are just the types of problems a solar storm（太阳风暴）might cause. You may not think of storms as putting our society in danger. But today, a solar storm is as serious as other bad events, such as earthquakes.

A solar storm is caused by solar flares（太阳耀斑）: large explosions（爆炸) near the sun that can give off lots of energy. The strong energy can stop the satellite systems（卫星系统）that control our computers, telecom networks and so on. These storms can even cause the power to go out for weeks or months.

In the past of months, scientists have recorded some of the strongest sun flares in years. The most recent one happened around Valentine's Day, 2011. It caused radio and satellite signals to go down in some northern cities in China.

“Solar Flare activity is going to be much worse than what we’ve seen in the past. We’re not talking about a few cities losing power. It could be half of the country, maybe more.” SolarStormWarning. com, a US website about space weather, warned.

Scientists say that little can be done to predict such a storm. Governments around the world are trying to work together before the next storm, although they are not sure when that may happen.

【1】According to the passage, a solar storm can cause many problems EXCEPT that________.

A.earthquakes happenB.mobile phones have no signals

C.people cannot get onlineD.the power may go out

【2】According to the passage, solar flares are________.

A.telecom networksB.solar storms

C.large explosions near the sunD.US websites

【3】From the passage, the right order of the following is________.

a. solar flares give off lots of energy b. people can’t get online with their computers

c. solar storms happen d. satellite systems are stopped

A.a-b-c-dB.a-c-d-bC.c-a-b-dD.c-b-a-d

【4】The writer wrote the passage mainly to________.

A.call for scientists to predict when the next solar storm will happen

B.tell people how to solve the problems caused by solar storms

C.introduce what solar storms are to people

D.ask people to work to prevent the solar storm from happening

A.唐古拉山脉B.巴颜喀拉山脉

C.昆仑山脉D.冈底斯山脉

【1】关于本次山火带来影响的叙述，错误的是（ ）

A.袋鼠、考拉因火灾数量减少B.着火期间当地空气质量下降

C.引发火山、地震灾害D.森林覆盖率减少，对气候产生影响

【2】关于澳大利亚和欧洲西部经济的比较，正确的是（ ）

A.两地自然条件只适宜畜牧业发展B.工业密集，是经济支柱

C.出口商品均以工业制成品为主D.都以服务业为经济支柱

A.布达拉宫B.秦始皇陵及兵马俑坑C.敦煌莫高窟D.八达岭长城

A.山地 a.使“世界70亿人口日”到来推迟了5年

B.中国 b.中国地形的骨架

C.漠河的北极村 c.我国夏季最热的地方

D.吐鲁番盆地 d.我国冬季最冷的地方

E.寒潮 e.能够在冬季影响江津区的自然灾害