【题目】 黄土高原是我国水土流失最严重的地区,黄土高原的土地总面约为53方平方千米,其流失面积大约43万平方千米,其中严重流失区约有25万平方千米。这里地面支离破碎,生产条件差。彻底治理黄土高原,是我国紧迫而艰巨的任务。
据此完成下列各题。
【1】黄土高原水土流失严重的人为原因是( )
A.气候干旱,沙丘向南迁移B.地面径流量少,降水集中多暴雨,流水侵蚀严重
C.黄土土质疏松D.人们违反自然规律,不合理地利用土地
【2】黄土高原的地表特征是( )
A.地表崎岖,典型的喀斯特地形B.雪山连绵,冰川广布
C.一望无际D.千沟万壑,支离破碎
科目:初中地理 来源: 题型:
【题目】 There are purple clothes, purple handbags, purple bicycles, purple furniture, even purple computers! So purple is one of the most_____ colors today. But in the past, purple was a very expensive and unusual color. Let's take a look at the rich_____ of the color purple.
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
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科目:初中地理 来源: 题型:
【题目】比较长江与黄河的不同与相同,完成表格。
比 较 内 容 | 长 江 | 黄 河 | |
不同点 | 发源山脉 | __________ | ________ |
注入的海洋 | __________ | ________ | |
上中下游的分界点 | __________ | ________ | |
流经的地形区 | 青藏高原 、 ____________ 四川盆地 、 ____________ | 青藏高原____________、 ______________、 华北平原 | |
流量大小 | ________ | _________ | |
有无结冰期 | _________ | _________ | |
相同点 | 发源的高原 | ________ | |
发源的省区 | _______ | ||
河流流向 | _________ |
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科目:初中地理 来源: 题型:
【题目】增长速度较快:
(1)特点:人口基数__________,人口增长_________。
(2)原因:人民生活水平的提高和医疗卫生条件的改善, ___________大幅度下降。
(3)计算:人口自然增长率=________________—_________________
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科目:初中地理 来源: 题型:
【题目】 假如你是李华,请你根据以下提示和要求写一篇英语短文,鼓励同学们多做一些课外阅读,让同学们意识到课外阅读对英语学习的重要性。
提示:(1)Tell students the importance of afterclass reading.
(2)Learn how to choose books.
(3)Pay attention to the reading skills and methods.
注意:(1)短文须包括所有提示内容,可适当发挥。
(2)短文中不得出现真实的人名、校名和地名。
(3)词数80个左右(开头已给出,不计入总词数)。
Hi, everybody, I am Li Hua. I think every student wants to study English well in our class.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
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科目:初中地理 来源: 题型:
【题目】将下面的地理事件与最适合的交通运输方式用直线连接起来。
A.新疆的天然气供应到上海市 公路运输
B.“邮件、包裹快递”公司业务员上门投递 管道运输
C.天津的一箱急救药品运送到昆明 海上运输
D.秦皇岛的煤炭运到珠海 内河运输
E.从南京到重庆观光旅游 铁路运输
F.十万吨钢材从鞍钢到长沙 航空运输
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