1、,Natural disaster,From group three,Fire, Water ., and Snow,Sea Wall,Troubled Water,In a Jam,Lower Manhattan Laid Low,Calm After the Storm,Beach, Before Landfall,A tsunami is a series of water waves. It is caused by the displacement of a large volume of a body of water, such as an ocean. This is a pi

2、cture about the tsunami in Japan. As we knew, a tsunami happened in Japan because of the earthquake. As a result, it caused a series of problems. It was in Japan that a large number of people lost their life. And many buildings were destroyed. It was the natural disaster that people could not hold b

3、ack.,Tsunami,An unusual phenomenon(現(xiàn)象) about the tsunami in Japan!,Mariners who escaped the onslaught of the tsunami soon had to contend with another peril - the appearance of vast whirlpools off the coast of Japan. 剛剛逃過滾滾而來的巨大海嘯浪濤的船員還來不及喘息，就又將面對另一處險象環(huán)生的挑戰(zhàn)在日本近海岸線上出現(xiàn)的巨大漩渦。 The powerful vortices appea

4、red yesterday morning when the oceans, swollen by the vast surge of water, began to recede. The powerful vortices appeared yesterday morning when the oceans, swollen by the vast surge of water, began to recede. 在廣大淹水地區(qū)出現(xiàn)“退水”的情況下，出現(xiàn)威力強勁的大漩渦。,As the water levels fell, whirlpools hundreds of yards wide

5、 appeared, sucking everything into the themselves and creating new danger for passing boats. 隨著水位的下降，漩渦的范圍擴張到幾十碼的區(qū)域，它毫不留情滴將周圍的所有一切都吸入其內(nèi)，這又給過往的船只造成了新的危險。 Whirlpools are created by rising and falling water - and are a common feature of tsunamis. But they are rarely as spectacular - or as well photogra

6、phed. 漩渦是由于水漲水退的變化而引起的，是海嘯所常常伴隨的現(xiàn)象，但拍攝到如此大規(guī)模的海嘯，的確實屬少見.,Originally, the interior of the earth is filled with hot magma. Under tremendous pressure, the hot magma will break through the earths crust and spouts out, causing the volcano. 原來，地球內(nèi)部充滿了熱的巖漿。在巨大的壓力下，滾燙的巖漿會沖破地殼，噴出，造成火山。,The creation of volcani

7、c eruption,The effects of volcanoes,Harm 1.Cause great bad impact on the global climate 2. Ash and rain mixed form mudslides（泥石流） 3. Ash can cause respiratory diseases（呼吸道疾病）,Benefits 1. Many of the volcanic materials have important industrial and chemical uses. 2. Volcanic ash that has been weather

8、ed (風(fēng)化)greatly improves soil fertility. 3.The amazing scenery,The effects of volcanoes,Salt and minerals after the eruption of a volcano,Ash as fertilizer （肥料）,Mount Fuji in Japan,Most importantly :How to protect yourself in the volcano eruption? The only way: Go while the going is good! (三十六計，走為上策

9、),Floods are among the most frequent and costly natural disasters. 洪水是最常見的、代價最高的自然災(zāi)害之一。 Conditions that cause floods include heavy or steady rain for several hours or days that saturates the ground. 浸透土地的持續(xù)幾小時或幾天的大量降水是導(dǎo)致洪水的主要原因。 Flash floods occur suddenly due to rapidly rising water along a stream

10、or lowlying area. 山洪突然出現(xiàn)是由于迅速上漲的水沿著小溪或低洼地區(qū)奔流而下。,How does a typhoon happen? When lots of sea water gets hot in the summer sun, it evaporates（蒸發(fā)）into the air.This makes the air hotter. When the air gets warm enough,it starts to move higher up into the sky. Then,cooler air around it rushes in.It fills

11、the space that is left. After the air gets warmer, it starts to move quickly,making wind. The wind goes in circles, and it keeps moving higher in the sky. The warmer the air gets, the quicker the wind moves. And when the wind moves faster than 30 meters a second, a typhoon begins.,A typhoon has two

12、parts, one is called the eye. In the eye, the wind does not move so fast. The other part is the wall of clouds around the eye. This is where the strongest wind and hardest rains are. Typhoons are very dangerous. In 2004, Typhoon Yunna killed 164 people in Zhejiang, and 24 people were missing. In May

13、 2006, Typhoon Pearl hit Guangdong and Fujian, and thousands of houses were damaged.,What to do when a typhoon hits: Stay inside, close all the windows and stay away from them. Try to bring all of your things inside. Strong winds could even blow away your bikes! Listen to the radio or TV for importa

14、nt information. If youre told to go to a safer place, do so right away.,An earthquake is a shaking of the ground caused by the sudden breaking and shifting of large sections of earths rocky outer shell. Earthquakes are among the most powerful events on earth, and their results can be terrifying. Ear

15、thquakes can trigger landslides that cause great damage and loss of life. Large earthquakes beneath the ocean can create a series of huge, destructive waves called tsunamis (pronounced tsoo NAH meez) that flood coasts for many miles. 地震是震動地面由突然打破和轉(zhuǎn)移地球的巖石外殼的大部分造成。地震是在最強有力的事件之中在地球上,并且他們的結(jié)果可能是恐怖的。地震可能觸

16、發(fā)導(dǎo)致巨大損傷和喪生的山崩。大地震在海洋之下可能創(chuàng)造一系列的巨大,破壞性的波浪叫做海嘯那種波浪沿海許多英里。,Earthquake,1) The weather will become worse than usual. There will be strong wind, heavy rain and bright light in the sky and so on. 2) Animals will become nervous. e.g. mice will run about; fish jump out of ponds; cows, pigs, horses and dogs wi

17、ll be upset. 3) Water in rivers and wells will rises and falls. 4) We will see cracks in the wells and the smelly gas will come out of the cracks. ,What may happen before an earthquake？,It is important for us to know how to prevent ourselves from being hurtin the earthquake. The most effective way i

18、s to depend on ourselves. We canget everything ready before it happens. We must keepenough food and drinking water with us. When ithappens, keep calm and dont runabout. Follow the correct orders. Only in this way, can we get the most chance to survive in the earthquake. 對于我們來說知道如何在地震中免遭傷害是很重要的。最有效的方法是靠自己。我們可以在地震前把一切準(zhǔn)備好。我們必須隨身保持足夠的食物和飲用水。當(dāng)?shù)卣鸢l(fā)生時 要保持鎮(zhèn)靜,不要亂跑。遵循正確的命令。只有用這種方法,我們才能得到最大的生存機會。,A drought is an extended period of months or years when a region notes a deficiency（不足）in its water supply. Generally