A.藏族﹣﹣《格萨尔》史诗B.新疆维吾尔族﹣﹣大歌

C.蒙古族﹣﹣木卡姆艺术D.侗族﹣﹣呼麦

A.当地震发生时，若在马路上行走，应该迅速避开电线杆和围墙，跑到较开阔的地区

B.当地震发生时，若在较坚固的教室里，可以躲避在课桌和讲台下

C.当地震发生时，居住在六楼的居民可以跳窗逃生，减少伤亡

D.当泥石流发生时，应向垂直于泥石流流动方向的山坡上跑

据此完成下面小题。

【1】这条河流有可能是

A.珠江B.塔里木河C.黑龙江D.黄河

【2】从根本上治理河流泥沙淤积、泛滥的措施是

A.跨流域调水B.修建水库C.植树种草D.加高河堤

A.“黄梅时节家家雨，青草池塘处处蛙”反映了黄河中下游地区的梅雨天气

B.“天苍苍，野茫茫，风吹草低见牛羊”描写了内蒙古高原水草丰盛、牛羊肥壮的景象

C.“早穿皮袄午穿纱，围着火炉吃西瓜”反映了温带大陆性气候昼夜温差大的特点

D.“羌笛何须怨杨柳，春风不度玉门关”反映了非季风区不受夏季风的影响

Some scientists believe that the first plants to appear on Earth over 500 million years ago _____ looked purple, not green. Plants today are green because they use green chlorophyll(叶绿素)to produce energy. _____ these early plants probably used something called retinal, which is a dark purple color.

During the time of the Roman Empire(37BC—476AD), it was very difficult to make purple dye(染料). The dye came from sea snails(海螺). But 10, 000 dead sea snails_____ you just one gram(克) of purple dye...as well as a very bad smell! This _____ purple dye was called Tyrian purple, and it was the preferred _____ of emperors.

In 16thcentury England, purple was only _____ the king's family members. Queen Elizabeth I's clothes were purple, but ordinary people were not allowed to _____ the color.

In 1856, William Perkin, an 18yearold science student, noticed something strange while doing an experiment. The chemicals(化学药品) he used to clean his instruments______ with the chemicals he used in his experiment and produced a bright purple color. This discovery led Perkin to start a company using this chemical mixture to make purple dye. The dye was much cheaper than seasnail dye. Thanks to Perkin, now anyone can afford to wear purple clothes.

【1】A.peacefulB.popularC.excitingD.serious

【2】A.historyB.styleC.researchD.product

【3】A.graduallyB.especiallyC.exactlyD.probably

【4】A.AndB.SoC.ButD.Or

【5】A.gotB.passedC.wastedD.cost

【6】A.basicB.harmfulC.specialD.perfect

【7】A.colorB.smellC.plantD.animal

【8】A.forB.inC.asD.with

【9】A.wearB.sellC.changeD.make

【10】A.comparedB.mixedC.collectedD.kept

A.人是生产者，越多越好，要快速增长

B.人口增长要根据个人意愿来决定

C.人是消费者，越少越好

D.人口增长要与资源、环境相协调，与社会经济发展相适应

A.青藏高原雪山连绵，黄土广布

B.黄土高原沟壑纵横，植被保护好

C.云贵高原地面崎岖，石灰岩分布广泛，有“坝子”

D.内蒙古高原地面坦荡，植被自西向东为草原－－荒漠草原－－荒漠

A.大聚居、小散居、交错杂居B.大聚居、小杂居、交错杂居

C.平均分配居住，没有特点D.大散居、小聚居、交错杂居

A.地表形态不同B.纬度高低不同C.地势高低不同D.海陆位置不同