2010年11月19日星期五
Geographical review syllabus _ fix Xuan Yanmo
Seventh grade vol.1 outline geography review 1. Earth latitude is the biggest circumference about Equatorial, 4 000 km. The Earth's surface area is 5.1 million square kilometers. Earth's mean RADIUS is 6371km. 2. the world's largest continent is Asia, the smallest continent is Oceania. Four of the largest in the ocean is the Pacific Ocean, the smallest is the Arctic Ocean, latitude highest Ocean is the Arctic Ocean. 3. If the scale on the map, then the range is small, but the content detail. Scale of the three forms are digital, segment-, text-type. The four oceans on the Earth, the most widely across the longitude is the Arctic Ocean. Seven continents, most widely across longitude is Antarctica. 4. contour mapping, slope steepness, contour-intensive; slope gently place, contour sparse. Map of the three elements is orientation, scale, legends and notes. The world's largest island is Greenland. 5. the land topography there are five forms in General, the mountains, Plains, plateaus, basin, hills. Land and sea changes caused by changes in the Earth's crust key reasons and sea-level rise. V belt, the ground is the sun light and minimal is North frigid zone and southern boreal. 6. the world's first spaceship into space astronauts are Gagarin. My first spaceship into space astronauts is Yang Liwei. The surface of the Earth, the land area of total surface area of 29%. 7. the seven continents of the world, North and South America in line is the Panama Canal. The boundary between Asia and Africa are the Suez Canal. The boundary between Asia and Europe are the Ural mountains, the Ural River, the Caspian Sea, the Great Caucasus Mountains, the Black Sea, Turkey channel. 地球和地图第一节 地球和地球仪1.地球的形状:两极稍扁赤道略鼓的不规则球体2.地球的大小:平均半径6371千米最大周长4万千米 表面积5.1亿平方千米3.地球是球体的证据:⑴麦哲伦环球航行P2 ⑵月食⑶轮船由远驶近,先见船杆后见船身P4 ⑷地球卫星照片⑸欲穷千里目,更上一层楼等4.经线和纬线的区别(见P5—P7)纬线经线(又名子午线)定义与地轴垂直并且环绕地球一周的圆圈接南北两极并和纬线垂直相交的半圆形状圆半圆长度从赤道向极点逐渐缩短等长指示方向东西方向南北方向相互关系平行相交5.经度和纬度(见P6-P7)经度(子午线)