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Instruction: Read the text carefully and do the tasks on the text correctly. FloodsFloods are second only to fire as the most common of all natural disasters. They occur almost everywhere in the world, resulting in widespread damage and even death. Consequently, scientists have long tried to perfect their ability to predict floods. There are a number of conditions, from deep snow on the ground to human error, that cause flooding. When deep snow melts it creates a large amount of water. Although deep snow alone rarely causes floods, when it occurs together with heavy rain and sudden warmer weather it can lead to serious flooding. Melting snow also contributes to high water levels in rivers and streams. Heavy rains will result in the rivers overflowing and flooding the surrounding land. Rivers that are covered in ice can also lead to flooding. When ice begins to melt, the surface of the ice cracks and breaks into large pieces. These pieces of ice move and float down the river. Broken ice dams are not the only dam problems that can cause flooding. When a large human-made dam breaks or fails to hold the water collected behind it, the results can be devastating. Dams contain such huge amounts of water behind them that when sudden breaks occur, the destructive force of the water is like a great tidal wave. Unleashed dam waters can travel tens of kilometres, cover the ground in metres of mud and debris, and drown and crush everything and creature in their path. Although scientists cannot always predict exactly when floods will occur, they do know a great deal about when floods are likely, or probably, going to occur. Deep snow, ice-covered rivers, and weak dams are all strong conditions for potential flooding. Hopefully, this knowledge of why floods happen can help us reduce the damage they cause. 21. Floods … . are not caused by people never cause serious damage or deaths come after fires among natural disasters never have bad results are the biggest natural disaster According to the text, causes of floods are large lakes and bad roads people’s deaths and human error melting snow and heavy rains drought and dam typhoon and earthquake The most common natural disaster strong wind heavy rain flood fire earthquake The false statement Scientists can help to reduce the damage Heavy rains will result in the lakes overflowing and flooding the neighbourhood Floods can result in terrible consequences Scientists have tried to predict floods Waters can travel some kilometres A broken human-made dam is compared to … . a tidal wave warmer weather a broken ice dam overflowing a tsunami A dam is a line of water that rises up on the surface of a sea, lake or river a situation in which water from a river or heavy rain covers large areas of land a way from one place to another that people can walk along physical strength , violence or energy a wall built across a river to create a lake or to help to produce electricity The way unleashed dam waters can travel A) cover the ground in metres of mud and debris all the mentioned ways drown everything and creature crush everything and creature they can travel some kilometres Strong conditions for potential flooding all of them none of them ice-covered rivers weak dams deep snow The true statement Sudden rise of temperature can’t cause floods People are not responsible for floods Deep snow alone never causes floods Consequences of floods can be upsetting Icy rivers don’t cause flooding either The main idea of the text is … . to inform the reader about flooding to recommend reading the text to focus on natural disasters to make the reader feel sad to entertain the reader жүктеу/скачать 0,83 Mb. Достарыңызбен бөлісу:
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