事件英语作文:火山喷发200字作文
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精选作文:事件英语作文:火山喷发200字作文
A volcano is an opening, or rupture, in a planet's surface or crust, which allows hot, molten rock, ash, and gases to escape from below the surface. Volcanic activity involving the extrusion of rock tends to form mountains or features like mountains over a period of time.
中考英语作文 突发事件
中考英语作文范文赏析:突发事件 【一、突发事件问题(热点)】
突发事件问题是中考书面表达的热点话题,从非典到雪灾,从地震到甲型HINI流感病例(A/HINI flu cases),都频频出现在各地中考试卷中,因此必须重视。但这类文章的写作有一定的难度,掌握基本句式和写作技巧非常必要
典型例句:
1. one +of + 形容词最高级+ 名词复数
One of the biggest events in China in 2008 is that the earthquake happened in WenChuan.
2. It"s our duty to do sth
It’s our duty to help them.
3. As?as possible
We shoud help them as much as possible.
4. here be??
Here are lots of things we can do.
5. We shoud keep calm instead of being afraid.我们要保持冷静而不能害怕。
6. make +sb+ 形容词
It makes many people homeless.
7. too ? to= so ? that
They are too young to look after themselves
例文:
1、汶川大地震(黑龙江鸡西)
5月12日,四川省汶川地区发生了罕见的大地震,那里的人们痛失亲人和家园。全国人民众志成城,抗
震救灾。作为一名中学生,请你谈谈你的做法和感受。
要求:文章语言流畅,逻辑清晰,用词准确,80—100字左右;
词汇参考:地震earthquake,悲痛sorrow,受到感动be deeply moved,安慰comfort,重建rebuild,自愿做某事volunteer to do sth
参考范文:
On May 12th, a big earthquake happened in Wenchun, Sichuan. Many people lost their relatives and their homes. All the Chinese people feel quite sorrow.A lot of people volunteer to help them. Some people raise money for them, some people buy something for them, some people go there to comfort the sad children. Thousands of soldiers help them to save their relatives and rebuild their homes Even foreign friends also give them a hand.
I’m deeply moved by these people. So I’ll use my pocket money to buy some food and school things for the children there. I think all of us should try our best to help them to get out of the trouble together.
2、雪灾
去年春节期间,我国大部分地区遭受雪灾,特别是南方,室几十年未遇。公路、铁路、机场都被迫关闭,电网瘫痪,数百万人不能回家过年。部分山区人民生活异常困难,在各级政府的带领下,人民群众、解放军战士英勇抗击雪灾,涌现出大批可歌可泣的英雄事迹。作为一名中学生,你有何感想?有何打算?能不能改变这种状态?
As we know, our country suffered heavy snow last Spring Festival. Everything was covered with heavy snow. It made the buses, trains and planes stop. Millions of people couldn"t go home. Many people suffered trouble. There was no food, water or light in some places. Our government called on people to fight against heavy snow. As a student, I think we should learn from those heroes. We must study hard at school. We should learn all kinds of nowledge to make our motherland stronger, better and richer.
3.甲型HINI流感
从电视上看到美国正流行甲型HINI流感(A/HINI flu),部分学校停课你为你正在美国上学的笔友Mike的健康与安全担心。请立即给他写一封email询问他的情况,并给他提出防护建议。
要点:
一。询问
1.他的健康状况;
2.他们学校有无甲型HINI流感病例(A/HINI flu cases);
3.他们是否还上学。
二。建议
1.尽量呆在家里,少去人多的地方;
2.勤洗手;讲卫生
3.多开窗,保持空气新鲜;
4.多吃水果蔬菜。
Dear Mike,
From the TV I know many A/HINI I flu cases are reported recently in the United States and many schools are closed as a result. I’m so worried about you. Are you alright? Are there any A/HINI flu cases in your school? Do you still have to school everyday?
To stay away from the disease, you’d better stay at home as much as possible and not go to places where there are many people. Wash your hands more often to keep them clean;
Open the window to have more fresh air in the room;
And eat more fruit and vegetable to keep yourself fit and strong.
So far the disease is not so deadly as it seems to be. Do be at ease! Take care and you’ll be OK.
Yours truly,
Li Hua
4、(四川南充)
“5.12”汶川大地震后,某校将开展“人人为灾区孩子献爱心”的主题班会活动,现在请你以学生会的名义写一份倡议书,内容要点如下:1.许多孩子地震后不能上学 2.。没有足够的学习用品和衣物 3.每个孩子都应该有上学的权利 4.我们应该作一些力所能及的事情去帮助、他们,比如?? 5.希望他们能尽快重返校园??
注意:1.可根据要点,适当发挥,(参考词汇:school things, have the right to do something, as
possible as one can)
2.词数:70词左右
参考作文:
Dear students,
After the terrible earthquake, there are lots of children out of school. Some of them are even homeless.Their schools and houses have destroyed. They can just live in the open air. They don’t have enough school things or clothes .As we all know, every kid has the right to go to school, but now they are in trouble. As a Chinese, we should help them as possible as we can. We can raise some money and things for them. And we can also write to them to encourage them. I hope they will return to school as soon as possible with our help.
Students’ Union
火山喷发模拟实验
火山喷发
模拟实验
一、陆地火山喷发模拟实验
1、实验目的:通过CaCO3与HCl的化学反应认,识化学反应的特征之一,同时产生大量的二氧化碳从小瓶口冲出形成流动的液体,加入红色颜料,像火山在喷发。
2、材料:石灰岩(CaCO3)、盐酸(HCl)、水、红色颜料、烧杯、带乳胶管的塑料瓶、纸盒、铁架台等。
3、用于教材那些课程:认识火山、了解化学变化的特征之一(认识物理变化与化学变化创设情境)、火山改变地形地貌等。
4、这个实验说明:石灰岩与盐酸剧烈反应,生产大量的二氧化碳从有限的瓶口冲出,带出化学反应的产物和水,形成火山喷发的模拟现象。
5、安全教育:认识化学药品、强调安全。盐酸(HCl),强酸,强腐蚀性,容易挥发,有刺激性,对人的皮肤、眼睛、鼻腔及呼吸道都有影响。
6、拓展:(1)、需要大量的二氧化碳,可以制作一个简易的启普发生器;(2)、火山喷发的主要原因是地壳运动,当
然也有化学变化的产生。
二、海底火山喷发模拟实验
1、实验的目的:认识热水上升、冷水下降形成对流,加入蓝色颜料,像海底火山在喷发。
2、器材:四个相同的塑料瓶,塑料薄膜,热水和冷水,蓝色颜料等。
3、操作方法:(1)、两个分别装上热水;另外两个分别装上冷水。(冷水为无色、热水为蓝色)。(2)、两瓶瓶口口对口、中间用塑料薄膜分开,其中两瓶热水上冷水下和冷水上热水下。(3)、分别取出塑料薄膜,观察到热水上升、冷水下降。(火山喷发)
4、实用教材:五年级“热水和冷水”、水的密度。
5、这个实验说明:热水上升,冷水下降。认识相同体积的热
水比冷水要轻,同时,认识热水的密度要比冷水的密度小。
6、拓展:认识对流现象,了解液体的密度。
遇到火山喷发怎么办
、 遇到火山喷发怎么办
一、教与学的目标:
1、学会查阅书刊及其它信息源,能对所提出的问题进行比较和评价,对探究过程和结果进行评议,并与他人交流意见。
2、能用简单器材做火山喷发模拟实验。
3、了解火山喷发现象;认识火山形成的原因;认识火山与人类生活的关系;包括给人类带来的危害和好处。
一、课前准备:
1、饮料瓶、透明胶布、气球、针,水、红墨水、水槽等每组一套。
2、教师(学生)准备关于火山的文字、图片、视频资料。
三、教学过程:
(一)导入新课:
1、同学们知道火山爆发吗?请说一说你知道的有关信息。
①播放火山爆发时的视频,认识火山喷发时的现象。
提问:看了这些视频资料,你有什么问题?
②学生发言
(从学生的讲述中选取“火山是怎么回事?”、“它是怎么形成的?”、“火山对人类有什么危害?”等几个问题。
(二)探究新知
2、分析有关现象,做出假设。
①提问:从这些现象中你对地球内部有哪些认识?(地层的构造)
学生讨论。
(地球表层有一层层的岩石,内部温度非常高,呈熔岩状态,压力非常大等。) ②提问:你认为火山是怎样形成的?
学生做出假设,并对别人的看法发表意见。老师按学生的假设整理出几条意见。(地球内部的熔岩温度非常高,压力非常大,从地表板块裂缝处或薄弱处喷发出来,就形成了火山。)
3、设计实验。
各小组自行讨论:怎样利用桌上的材料设计实验证明自己的观点呢?
以小组为单位讨论、设计实验并汇报。
4、 学生按自己的设计方法实验,教师巡回指导。
要求:认真观察实验现象,并做好记录。
5、汇报、讨论。
学生以小组为单位汇报实验过程、实验现象及得出的结论。
(学生可能作出的实验:①先用气球装上水,再用针扎上小孔后的喷水现象模拟火山喷发,②在饮料瓶一侧扎上一个小孔,用透明胶布粘住,瓶内灌上水,加入红墨水染红,拧紧盖子,用力挤压瓶身,水将透明胶布冲开,形成“火山喷发”。)
6、讨论:通过实验,现在你们认为火山到底是怎样形成的?
7、出示地壳变动,火山发生的课件,总结火山的成因。
(三)、科学与生活
8、讨论:火山与人类生活的关系。
播放视频(影片《烈火熔城》片断。)
学生讲述搜集的有关火山带给人们的灾难的资料。
问:火山带给人类哪些益处呢?
学生讨论:
(形成地热资源,形成矿产,形成独特的自然景观等)
(四)拓展活动
9、布置课后活动。
收集有关资料,办一份火山风景区旅游手抄报。
英语文章3
Spotlight on Hawaii
金色的海滩,金色的人们。阳光、沙子、大海、浪花……
在蓝天和棕榈树之间,我们流连忘返。
For most of us, Hawaii begins to weave her spell with some little glimmer of awareness. Golden beaches and golden people. Sun, sand,sea, and surf... And somewhere between the blue skies and the palm trees... We’re hooked. The Hawaiian Islands are one of the most beautiful places on earth. The
weather is friendly. The temperature ranges from 60-90 degrees all year long. It’s a little warmer in summer, and a little cooler in winter, but every day is a beach day for somebody.
The environment is friendly. The physical beauty of Hawaii is almost
unparalleled. Majestic mountains were created millions of years ago by volcanic activity that thrust these islands three miles from the ocean floor. Wave action across endless eons of time created coral reefs, and then battered and broke them to create miles of white sand beach. Our position at the center of the
Pacific ensured that almost every plant and animal who would find a home here would come as an invited guest.
There are no strangers in Paradise. Perhaps the most beautiful part of Hawaii is the genuine warmth of our people. We call it the spirit of Aloha. It has allowed a melting pot of cultures from all over the world to find common ground, and a new home, in this most gentle of places.
夏威夷风情
对于大部分人来说,那些星星点点的关于夏威夷的印象,足以让我们沉浸于她的魅力。金色的海滩,金色
的人们。阳光、沙子、大海、浪花……在蓝天和棕榈树之间,我们流连忘返。夏威夷岛是世界上最美丽的地方之一。这里天气晴朗,气温整年在华氏60-90 度之间变化。夏天稍暖,冬天稍凉,但对于某些人来说每天都是晒太阳的好日子。环境很舒适。夏威夷的自然美几乎是无与伦比的。几百万年前,将这些岛屿从海底三英里的地方挤推的火山活动,创造了雄伟的高山。千万年的波动作用创造了珊瑚礁,然后经过撞击,形成了几英里长的白沙滩。夏威夷地处太平洋的中心,使得几乎每一种植物和动物都可以来到这里找到一个家。在这人间天堂没有陌生人。也许夏威夷人与生俱来的热情才是这里真正的魅力所在。我们将它称之为爱的精神。它是世界上最文明的地方之一,世界各地的文化都可以在这熔炉中找到共同点,生根发芽。
1 glimmer [?ɡl?m?(r)] n. 一丝光线,微光 In the east there is the slightest glimmer of light. 东方有一丝闪烁的微光。
2 awareness [??we?n?s] n. 意识Once you lose awareness, you lose.
一旦你失去了意识,你就完了。
3 hook [h?k] v. 钩We hooked the trailer to the back of the car.
我们把拖车挂在汽车尾部。
4 range [re?nd?] v. 变化They range in price from $3 to $15.
它们的价格在3 美元到15 美元之间变化。
5 unparalleled [?n?p?r?leld] adj. 无比的The scenery of this country is unparalleled. 这个国家的风景无与伦比。
6 majestic [m??d?est?k] adj. 雄伟的;壮丽的She was attracted by the majestic scenery.她被这壮丽的风景吸引。
7 volcanic [v?l?k?n?k] adj. 火山的Over 200 people have been killed by volcanic eruptions. 已有两百多人死于火山喷发。
8 thrust [θr?st] v. 推;插They thrust him into the back of a jeep.
他们把他猛推入吉普车的后部。
9 batter [?b?t?(r)] v. 猛击;打坏A karate expert battered a man to death. 一位空手道高手将一名男子猛击致死。
10 ensure [?n????(r)] v. 保证;确保I cannot ensure his being on time. 我不能保证他能按时到达。
11 genuine [?d?enju?n] adj. 真的It’s his genuine signature.这是他的亲笔信。
英语作文