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longman science 4B 03

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[00:00.00]3 The Shape Of The Earth
[00:01.76]地球的形状
[00:03.53]Can we see American from the Victoria Peak in Hong Kong?Why?
[00:06.90]我们能从香港的维多利亚看到美国吗?为什么?
[00:10.27]Finding out
[00:11.55]找出:
[00:12.83]1(a)Imagine you are travelling in a rocket and you are looking out of the window.
[00:16.95]想像你正坐在火箭上旅行。从火箭的窗外看,
[00:21.08]How will the views change as the rocket goes up?
[00:23.16]景物随着火箭的升高怎样变化?
[00:25.23]school entrance
[00:26.51]学校入口
[00:27.79]school
[00:29.10]学校
[00:30.41]district
[00:31.32]地区
[00:32.24]Hong Kong
[00:33.20]香港
[00:34.17]South-east Asia
[00:35.74]东南亚
[00:37.30]the Earth
[00:38.37]地球
[00:39.44](b)What is the shape of the Earth?
[00:41.57]地球的形状是什么?
[00:43.70]2.What do we breathe in?What is surrounding the Earth?
[00:47.32]我们吸进去的是什么?包围地球的是什么?
[00:50.94]a child taking a breath
[00:52.85]深呼吸的小孩子
[00:54.75]an astronaut wandering in space
[00:56.93]漫步太空的太空人
[00:59.12]3.Is the surface of the Earth flat?
[01:01.70]地球的表面是平坦的吗?
[01:04.29]the Grand Canyon
[01:05.80]大峡谷
[01:07.32]the Great Falls
[01:08.66]大瀑布
[01:10.01]a cliff near the sea
[01:11.54]海边悬崖
[01:13.06]4.How can you tell that the inner part of Earth is very hot?
[01:16.70]你怎么知道地球内部十分热?
[01:20.33]volcano
[01:21.61]火山
[01:22.89]hot spring
[01:24.00]温泉
[01:25.11]geyser
[01:26.28]间歇泉
[01:27.46]5.What is the structure of the Earth?
[01:29.84]地球的结构是什么?
[01:32.21]air
[01:33.18]空气
[01:34.15]sea
[01:35.01]海洋
[01:35.87]crust
[01:36.93]岩漿
[01:37.99]lava
[01:38.89]外壳
[01:39.79]inner core
[01:40.61]内地核
[01:41.43]outer core
[01:42.50]外地核
[01:43.58]lava
[01:44.56]岩漿
[01:45.53]crust
[01:46.29]地壳
[01:47.05]Main Points
[01:48.37]要点
[01:49.69]The Earth looks like a ball.The widest part is near the Equator*1
[01:52.47]地球的形状类似球体,最宽的地方在赤道附近。
[01:55.25]The Earth is surrounded by a layer of air called the atmosphere*2
[01:58.02]地球被层叫大气层的空气包围。
[02:00.79]This enables all the living things on the Earth to live.
[02:02.87]这使地球上的所有生物都能生存。
[02:04.94]The surface of the Earth is not flat.It is made up of the land and the sea.
[02:08.43]地球表面并不是平坦的。它由陆地和海洋组成。
[02:11.92]Deep inside the Earth are very hot molten rocks called lava.
[02:14.74]地球内部深处是十分炽热的岩浆的岩石熔化物。
[02:17.56]The lava comes up to the surface when volcanoes explode.
[02:19.89]当火山爆发时,岩浆会喷到地面上。
[02:22.21]*1 Equator
[02:23.83]赤道
[02:25.45]*2 atmosphere
[02:26.82]大气层
[02:28.19]Activities
[02:29.21]活动:
[02:30.23]1.Look at a globe carefully:
[02:32.27]仔细观察地球仪:
[02:34.31](a)Where is the Equator of the Earth?
[02:36.26]赤道位于哪里?
[02:38.22](b)Which has a bigger area,the sea or the land?
[02:41.54]哪个面积较大,海洋还陆地?
[02:44.86](c)Where is the South Pole and where is the North Pole?
[02:47.95]南极和北极在哪里?
[02:51.05]globe
[02:52.26]地球仪
[02:53.48]2.Collect some picture of volcanic explosion.
[02:55.75]收集一些火山爆发的图片。
[02:58.02]3.Why are hot springs mostly found near volcanoes?
[03:00.68]为什么大部分温泉都是在火山附近找到的?
[03:03.33]4.Can you find another method to prove that the Earth is almost round?
[03:06.91]你能用另外的方法证明地球的形状是圆的吗?
[03:10.48]5.What would happen if ther were no air on the Earth's surface?
[03:13.59]如果地球表面没有空气,会发生什么事?

责编:Heaven

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