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地形介绍

地形介绍
地形介绍

地域范围:具有一定的界限;地域内部表现出明显的相似性和连续性,地域之间则具有明显的差异性;地域具有一定的优势、特色和功能;地域之间是相互联系的,一个地域的变化会影响到周边地区。

地形:陆地表面各种各样的形态,总称地形。按其形态可分为山地、高原、平原、丘陵和盆地五种类型。

地貌:地表面高低起伏的状态。按其自然形态可分为山地、丘陵、平原、盆地等

例:海南省所属的岛屿,分为大陆岛和海洋岛。海南岛原来与广东省的雷州半岛相连,后因地壳运动下陷,海水上淹,形成琼州海峡,使其与大陆分离,成为大陆岛。南海诸岛则是由于海底火山喷发堆积、珊瑚繁殖和海底泥沙堆积综合作用布成的,属于海洋岛。

海南岛为一穹形山体,中间高四周低,由山地(占25.4%)、丘陵(占13.3%)、台地(占32.6%)、平原(包括阶地占28.7% )等组成。整个地势从中部山体向外,由山地、丘陵、台地、平原顺序逐级递降,构成层状垂直分布和环状水平分布带。由于深受地质构造和热带气候的影响,地貌发育具有多级层状地貌显著,火山地貌发育,沿海堆积平原广布,珊瑚礁和红树林海岸在我国最为典型等特征。在生产上形成了以山地丘陵为中心的热带林业带,以低丘台地为中心的橡胶热作带,以阶地平原为中心的热带粮油作物带的布局态势,反映出农业生产的空间组合,深受地貌特征的影响。

气候环境:是长时间内气象要素和天气现象的平均或统计状态,时间尺度为月、季、年、数年到数百年以上。气候以冷、暖、干、湿这些特征来衡量,通常由某一时期的平均值和离差值表征。

例:热带雨林气候

例:地中海气候

例:高原气候

物产资源:

地下、地表资源丰富,组合条件较好,利用价值高,开发潜力大的自然资源。

包括植物资源、矿产资源、水资源

风土:山川风俗、气候等的总称;

人情:人的性情、习惯。指一个地方特有的地理环境和民间风习等的总称

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AT89C51英文介绍资料

AT89C51 Description The AT89C51 is a low-power, high-performance CMOS 8-bit microcomputer with 4K bytes of Flash Programmable and Erasable Read Only Memory (PEROM). The device is manufactured using Atmel’s high density nonvolatile memory technology and is compatible with the industry standard MCS-51? instruction-set and pinout. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C51 is a powerful microcomputer which provides a highly flexible and cost effective solution to many embedded control applications. Features ?Compatible with MCS-51? Products ?4K Bytes of In-System Reprogrammable Flash Memory –Endurance: 1,000 Write/Erase Cycles ?Fully Static Operation: 0 Hz to 24 MHz ?Three-Level Program Memory Lock ?128 x 8-Bit Internal RAM ?32 Programmable I/O Lines ?Two 16-Bit Timer/Counters ?Six Interrupt Sources ?Programmable Serial Channel ?Low Power Idle and Power Down Modes The A T89C51 provides the following standard features: 4K bytes of Flash,128 bytes of RAM, 32 I/O lines, two 16-bit timer/counters, a five vector two-level interrupt architecture, a full duplex serial port, on-chip oscillator and clock circuitry. In addition, the AT89C51 is designed with static logic for operation down to zero frequency and supports two software selectable power saving modes. The Idle Mode stops the CPU while allowing the RAM, timer/counters, serial port and interrupt system to continue functioning. The Power-down Mode saves the RAM contents but freezes the oscillator disabling all other chip functions until the next hardware reset.

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资料集锦英文自我介绍资料

资料集锦英文自我介绍资料 一、Greetings (打招呼) 1. Good morning everyone.大家早上好。 2.Good afternoon, ladies and gentlemen. 先生们,女士们下午好。 3.Good evening, teachers and fellow students. 老师们,同学们晚上好。 6.I’m very happy to introduce myself to you here. 我很高兴在这儿向大家作自我介绍。 二、Basic information (基本自我介绍) 1.My name is Michelle.我叫Jojo. 2.I am Cindy.我叫Cindy. 3.I am 25.我二十五岁了。 4.I am from Hong Kong.我来自香港。 5.I come from Singapore.我来自新加坡。 三、Family (家庭) 1.My home is the home of peace. 我的家是和平之家。 2.My home is the home of joy and delight.

我的家是欢乐和喜悦之家。 3.This is the home of love; 这是爱之家。 4.Those who come in must learn the lessons of love; 进入这家的人将会受到爱的课程。 5.Thus may they know how to love each other. 从而他们将知道如何去互相友爱。 四、 Family members (家庭成员) 1.I have a big and happy family. 我有一个快乐的大家庭。 2.There are three people in my family. 我们家有三口人。 3.My father works for a bank. 我爸爸在一家银行工作。 4.My mother teaches in a high school. 我妈妈在一所中学教书。 5.My mom loves teaching little kids. 我妈妈特别喜欢教小孩儿。 6.I have an older sister. 我有一个姐姐。 7.I have a twin brother.

世界地形主要分为哪几种

世界地形主要分为哪几种? 共分为:平原、山地、丘陵、高原、盆地五种基本类型。 平原:陆地上海拔高度相对比较小的地区称为平原。平原是陆地上最平坦的地域,海拔一般在200米以下。平原地貌宽广平坦,起伏很小,它以较小的起伏区别于丘陵,以较小的高度来区别于高原。平原的类型较多,按其成因,可分为构造平原、侵蚀平原和堆积平原。堆积平原是在地壳下降运动速度较小的过程中,沉积物补偿性堆积形成的平原,洪积平原、冲积平原、海积平原都属于堆积平原;如长江中下游平原就是冲积平原。侵蚀平原,也叫剥蚀平原,是在地壳长期稳定的条件下,风化物因重力、流水的作用而使地表逐渐被剥蚀,最后形成的石质平原。侵蚀平原一般略有起伏状,如我国江苏徐州一带的平原。构造平原是因地壳抬升或海面下降而形成的平原,如俄罗斯平原。世界平原总面积约占全球陆地总面积的四分之一,平原不但广大,而且土地肥沃,水网密布,交通发达,是经济文化发展较早较快的地方。我国的长江中下游平原就有“鱼米之乡”的美称。另外一些重要矿产资源,如煤、石油等也富集在平原地带。

山地:属地质学范畴,地表形态按高程和起伏特征定义为海拔500米以上,相对高差200米以上。 地球陆地的表面,有许多蜿蜒起伏、巍峨奇特的群山。山由山顶、山坡和山麓三个部分组成,平均高度都在海拔500米以上。它们以较小的峰顶面积区别于高原,又以较大的高度区别于丘陵。这些群山层峦叠嶂,群居一起,形成一个山地大家族。 山地的表面形态奇特多样,有的彼此平行,绵延数千公里;有的相互重叠,犬牙交错,山里套山,山外有山,连绵不断。山地的规模大小也不同,按山的高度分,可分为高山、中山和低山。海拔在3500米以上的称为高山,海拔在1000-3500米的称为中山,海拔低于1000米的称为低山。按山的成因又可分为褶皱山、断层山、褶皱一断层山、火山、侵蚀山等。褶皱山是地壳中的岩层受到水平方向的力的挤压,向上弯曲拱起而形成的。断层山是岩层在受到垂直方向上的力,使岩层发生断裂,然后再被抬升而形成的。喜马拉雅山是典型的褶皱山,江西的庐山是断层山,天山山脉属于褶皱一断层山。

英文介绍人的出生

When we were children, we always asked our parents-“Daddy where am I from?”–“Em, you were sent to our house by a fairy.”-“A fairy?”-“Yes, and I know you must be a naught baby at first glance.”-“Why ?”-“You know the baby who are disobedient will be spanked, and your ass is blue.”—“Mommy where am I from?”-“You were picked from a baby tree, a tree full of baby. We wanted another baby at first but when I touched the branch, you were falling from the tree by accident, so we had to bring you to home.” When we grow up we know that statement is not scientific, and I want to ask you where are we from.-“Oh, it was more than twenty years ago, who remembered.” Just a joke. Today let’s to see where are we from. From fertilized egg to birth, this is our development process. There are about 300 million sperm . However, only a sperm may pass through many obstacles and to fertilize an egg. Look, this is a moment that the sperm trying to enter the egg. When the fertilized formed, there is also a change in it’s genes. You know the “XY” represent male, and “XX” represent female.

厦门英文介绍

美丽厦门之英文介绍大全集(一) 01: 厦门英文介绍About Xiamen 02: 厦门八大景八小景Tour Xamen 03: 鼓浪屿英文介绍1 Gulangyu Island 04: 鼓浪屿英文介绍2 Gulangyu Island 05: 厦门市市鸟白鹭City Bird-Egrets 06: 厦门市市花三角梅英文介绍City Flower-Bougainvillea glabra 07: 厦门南普陀英文介绍Nanputuo Temple 08: 集美旅游景点英文介绍Jimei Tourist Area 09: 同安旅游景点英文介绍Tong’an Tourist Area 01.About Xiamen厦门英文介绍 Xiamen is an island city with a rich and dramatic history, replete with pirates, rebel leaders, and European merchants. Now linked to mainland Fujian by a causeway, Xiamen retains a strong international flavor. Known in the West as Amoy, Xiamen has a long history as a port city, and later became a center of British trade in the 19th century. Their foreign settlements, later taken over by Japanese invaders at the start of World War II, were established on the nearby small Gulangyu Island. Many of the old treaty-port and colonial buildings in Western styles survive. Xiamen was declared one of China’s first Special Economic Zones in the early 1980’s, taking advantage of the city’s heritage as a trading center and the proximity to Taiwan. Today Xiamen is one of China’s most attractive and best-maintained resort cities. Xiamen was founded in 1394 at the beginning of the Ming dynasty as a center of defense against coastal pirates. Its prosperity was due to its deepwater sheltered harbor, that supplanted nearby Quanzhou, the port that had been the center of the maritime trade with the Indies. In the mid-17th century, Xiamen and Gulangyu Island became a stronghold of Zheng Chenggong, known in the West as Koxinga, a Ming loyalist who held out against the Manchu invaders until being driven to Taiwan. Born in Japan to a Chinese pirate father and a Japanese mother, Zheng became allied with holdout Ming princes in the south who

世界地形主要分为哪几种

世界地形主要分为哪几 种 集团标准化工作小组 #Q8QGGQT-GX8G08Q8-GNQGJ8-MHHGN#

世界地形主要分为哪几种 共分为:平原、山地、丘陵、高原、盆地五种基本类型。 平原:陆地上海拔高度相对比较小的地区称为平原。平原是陆地上最平坦的地域,海拔一般在200米以下。平原地貌宽广平坦,起伏很小,它以较小的起伏区别于丘陵,以较小的高度来区别于高原。平原的类型较多,按其成因,可分为构造平原、侵蚀平原和堆积平原。堆积平原是在地壳下降运动速度较小的过程中,沉积物补偿性堆积形成的平原,洪积平原、冲积平原、海积平原都属于堆积平原;如长江中下游平原就是冲积平原。侵蚀平原,也叫剥蚀平原,是在地壳长期稳定的条件下,风化物因重力、流水的作用而使地表逐渐被剥蚀,最后形成的石质平原。侵蚀平原一般略有起伏状,如我国江苏徐州一带的平原。构造平原是因地壳抬升或海面下降而形成的平原,如俄罗斯平原。世界平原总面积约占全球陆地总面积的四分之一,平原不但广大,而且土地肥沃,水网密布,交通发达,是经济文化发展较早较快的地

方。我国的长江中下游平原就有“鱼米之乡”的美称。另外一些重要矿产资源,如煤、石油等也富集在平原地带。 山地:属地质学范畴,地表形态按高程和起伏特征定义为海拔500米以上,相对高差200米以上。 地球陆地的表面,有许多蜿蜒起伏、巍峨奇特的群山。山由山顶、山坡和山麓三个部分组成,平均高度都在海拔500米以上。它们以较小的峰顶面积区别于高原,又以较大的高度区别于丘陵。这些群山层峦叠嶂,群居一起,形成一个山地大家族。 山地的表面形态奇特多样,有的彼此平行,绵延数千公里;有的相互重叠,犬牙交错,山里套山,山外有山,连绵不断。山地的规模大小也不同,按山的高度分,可分为高山、中山和低山。海拔在3500米以上的称为高山,海拔在1000-3500米的称为中山,海拔低于1000米的称为低山。按山的成因又可分为褶皱山、断层山、褶皱一断层山、火山、侵蚀山等。褶皱山是地壳中的岩层受到水平方向的力的挤压,向上弯曲拱起而形成的。断层山是岩层

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