最近中文字幕完整版高清,宅男宅女精品国产av天堂,亚洲欧美日韩综合一区二区,最新色国产精品精品视频,中文字幕日韩欧美就去鲁

災(zāi)害(Disasters)

　　in the past hundred years, there have heen frequent natural disasters, such as floods, droughts, mud-rock flows, seismic sea waves, earthquakes, windstorms and the stretching of new deserts.

　　the disasters have killed millions upon millions of people, destroyed countless homes, and wiped out numerous pieces of fertile land.

　　now more and more people become aware that those disasters have much to do with what we have done to the earth. we have cut down too many trees in the forests,we have badly polluted the environment, we have shocked our own home-planet time and again with tremendously powerful explosions of nuclear bombs.

　　as a result, climates have become abnormal, rainwater rushes down hillsides angrily, and the underground energy goes up to revenge itself on us.

　　the earth is our only home-planet. it is urgent for us to stop damaging it, and to do our best to protect it and make it a lovely place suitable to live in, for we have nowhere to go and survive except where we are now.

災(zāi)害(Disasters) 相關(guān)內(nèi)容：

娛樂(Recreation)
it is impossible to keep in good health unless we have sufficient recreation. the mind, too, needs rest to keep alert and vigorous. there is a lot of truth in the old saying, 'all work and no play makes jack a dull boy....
笑是良藥(Laughter Is the Best Medicine)
as the pace of life quickens and the pressure from our work increases, some people say that we are becoming more gloomy and unhappy with each passing day. they believe that, in fact, we are losing our ability to laugh....
急救(First Aid)
it is important for you to learn some knowledge about first aid in your daily life. if a person has an accident, he needs medical care before a doctor can be found....
空氣污染(Air pollution)
air pollution comes from factories, power stations and cars. chemicals in the smoke from power stations cause a lot of damage. they can travel hundreds of miles in the wind before falling to the ground in the rain....
水污染(Water Pollution)
water pollution is caused by waste from factories and cities. oceans are able to clean themselves, but certain seas,once they become dirty, are not able to do so....
博物館(Museums)
from boston to los angeles, from new york city to chicago to dallas, museums are either planning, building, or wrapping up wholesale expansion programs....
拯救地球(Saving the Earth)
the population of the earth is increasing very fast. humans must make the earth support the increasing population. this has made it necessary for agriculture and industry to develop rapidly....
做個誠實的人(It Pays to Be Honest)
nowadays people are troubled with mass of dishonest behaviors in society. teachers get annoyed when they catch students cheating on exams; consumers get hurt when they unfortunately buy some fake products; children are...
英語四級作文