刚刚发生的青海地震让大家心里都对地震又恨又怕。虽然天灾我们无法控制,但我们可以做好应对措施,这样就可以尽可能的减少伤亡。
2010年高考英语作文热点范文集锦
An earthquake is a tremor of the earth's surface usually triggered by the release of underground stress along fault lines. This release causes movement in masses of rock and resulting shock waves. In spite of extensive research and sophisticated equipment, it is impossible to predict an earthquake, although experts can estimate the likelihood of an earthquake occurring in a particular region.
In 1935, American seismologist (地震学家) Charles Richter developed a scale that measures the magnitude of seismic waves. Called the Richter scale, it rates earth tremors on a scale from 1 to 9, with 9 being the most powerful and each number representing an increase of ten times the energy over the previous number. According to this scale, any quake that is higher than 4.5 can cause damage to stone buildings; quakes rated a magnitude of 7 and above are considered very severe. A less-known scale, the Mercalli scale (麦氏震级), was devised by Italian seismologist Giuseppe Mercalli to measure the severity of an earthquake in terms of its impact on a particular area and its inhabitants and buildings.
Some earthquakes are too small to be felt but can cause movement of the earth, opening up holes and displacing rocks. Shock waves from a very powerful earthquake can trigger smaller quakes hundreds of miles away from the epicenter. Approximately 1,000 earthquakes measuring 5.0 and above occur yearly. Earthquakes of the greatest intensity happen about once a year and major earthquakes (7.0-7.9) occur about 18 times a year. Strong earthquakes (6.0-6.9) occur about 10 times a month and moderate earthquakes (5.0-5.9) happen more than twice daily. Most earthquakes are not even noticed by the general public, since they happen either under the ocean or in unpopulated areas. Sometimes an earthquake under the ocean can be so severe, it will cause a tsunami, responsible for far greater damage.
The greatest danger of an earthquake comes from falling buildings and structures and flying glass, stones and other objects.
If you live in an earthquake-prone area, here are some steps that can be taken to minimize risks:
如何应对地震:
Affix bookcases, cabinets, refrigerators and furniture to the walls. 将书架、橱柜、冰箱和家具固定在墙上。California and Japan sell silicone putty kits that can be used to stick dishes and other breakables to the walls.
Fit cabinets with "childproof locks," so doors will remain closed and items won't fly out. 锁好橱柜。
Have a backpack prepared and attached to the bed, containing shoes, a flashlight and batteries, keys, money, first-aid supplies and medicines, a knife, food, water, ID and insurance information. Attaching the pack to the bed helps to insure that it will not be thrown around during an earthquake. 准备好应急包。