内容正文:
Unit20火山爆发
Unit 20
火山爆发
调图导人
火山是一种常见的地貌形态,是地下熔融物质及其携带的固体碎屑冲出地
表后堆积形成的山体。火山爆发时喷出的大量火山灰和火山气体,对气候造成极
大的影响。因为在这种情况下,昏暗的白昼和狂风暴雨,甚至泥浆雨都会困扰当
地居民长达数月之久。而且火山喷发的气体中含有硫黄和氯气,会形成酸雨,破
坏环境。然而同时,火山灰也非常肥沃,有利于发展农业生产。火山爆发有利有
弊,你对火山爆发持有什么看法呢?一起和同学讨论吧!
1)常用句子
●关于火山
◆一What are the types of volcanoes?火山的种类有哪些?
-Volcanoes can be divided into active volcanoes,extinct volcanoes and dormant
volcanoes..火山可以分为活火山、死火山和休眠火山
◆一What is the Ring of Fire?什么是环太平洋火山带?
-The Ring of Fire is a long chain of volcanoes and earthquakes around the edge
of the Pacific Ocean.There are 512 volcanoes based in the 25,000-mile ring that
stretches from North and South America to Japan and New Zealand.
环太平洋火山带是环绕太平洋边缘的火山和地震频发的长链形区域。这个火山
圈从北美洲和南美洲延伸到日本和新西兰,绵延25000英里,共有512座火山
◆一Why do people still live near the volcano?为什么人们还在这座火山附近居住?
-The land around the volcano is very fertile,and there are many tourist resources
such as hot springs.
这座火山周围的土地十分肥沃,而且有温泉等较多的旅游资源。
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●火山爆发的危害
◆一What harm does a volcanic eruption cause'?火山爆发会造成那些危害?
-It will affect the climate,destroy the environment,affect people's lives and even
bring death.它会影响气候,破坏环境,影响人们的生活,甚至带来死亡。
●火山爆发的好处
◆一What are the benefits of volcanic eruptions'?火山爆发带来哪些好处?
-First of all,it can create some mineral resources for mankind.Second,the
eruptions can form many natural landscapes..首先,它可以给人类创造一些矿产
资源。第二,火山爆发能形成很多的自然景观。
●火山学家
◆一Why is a volcanologist's job important?为什么火山学家的工作很重要?
-Volcanologists study volcanoes so that they can warn people when the volcano is
going to erupt and so save many lives.火山学家研究火山,这样他们就能在火山
即将爆发时提醒人们,从而拯救许多生命。
-Why did the scientists have to get close to the volcano after it erupted?
为什么科学家必须在火山爆发后接近火山?
-The scientists needed to get samples of the lava so they could study them.
科学家们需要获取熔岩样本,以供研究。
●面对灾害时的自我保护
Tune in to local authorities for information about evacuations and safety tips.
关注当地政府,了解有关琉散和安全提示的信息。
Prepare stock kits with flashlights,batteries,first aid supplies,and important
ide