英语课程计划-the Preservation of the Ozone Layer
时间：2018-12-29 作者：英语课 分类：英语课程学习计划和讲义
There is a special day to recognize the importance of the ozone 1 layer. In 1995, the United Nations General Assembly decided 2 September 16th is the International Day for the Preservation 3 of the Ozone Layer. This is the date on which countries signed the Montreal Protocol 4 on substances that deplete 5 the Ozone Layer in 1987. The U.N. said it was urgent we consider the “need to preserve the ozone layer, which filters sunlight and prevents the adverse 6 effects of ultraviolet radiation reaching the Earth's surface, thereby 7 preserving life on the planet”. It Invited every country to devote this special day to promotion 8, at the national level, of concrete activities in accordance with the objectives and goals of the Montreal Protocol”.
The ozone layer is a layer in Earth's atmosphere that contains high concentrations of ozone (O3). This layer absorbs up to 99 per cent of the sun's damaging ultra-violet (UV) rays. These rays contain radiation from the sun and can give us skin cancer. They also damage plant and marine 9 life as well as warm the temperature of the Earth. The ozone layer surrounds the Earth roughly 25km above us. Many human activities are thinning the layer. In several places, there are large holes that let in pure UV light. The chemicals used in fridges, air conditioners, foam 10 packaging and fire extinguishers rise into the atmosphere and attack the ozone. Ozone cover is dropping by roughly four per cent a decade.
- The ozone layer is a protective layer around the planet Earth.臭氧层是地球的保护层。
- The capacity of ozone can adjust according of requirement.臭氧的产量可根据需要或调节。
- This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
- There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。
- The police are responsible for the preservation of law and order.警察负责维持法律与秩序。
- The picture is in an excellent state of preservation.这幅画保存得极为完好。
- We must observe the correct protocol.我们必须遵守应有的礼仪。
- The statesmen signed a protocol.那些政治家签了议定书。
- Most native mammal species have been severely depleted.大多数本地哺乳动物的数量都已经大大减少了。
- Elastic collisions deplete very little of the electron's energy.弹性碰撞中电子减少的能量非常少。
- He is adverse to going abroad.他反对出国。
- The improper use of medicine could lead to severe adverse reactions.用药不当会产生严重的不良反应。
- I have never been to that city,,ereby I don't know much about it.我从未去过那座城市，因此对它不怎么熟悉。
- He became a British citizen,thereby gaining the right to vote.他成了英国公民，因而得到了投票权。
- The teacher conferred with the principal about Dick's promotion.教师与校长商谈了迪克的升级问题。
- The clerk was given a promotion and an increase in salary.那个职员升了级，加了薪。
- Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
- When the war broke out,he volunteered for the Marine Corps.战争爆发时，他自愿参加了海军陆战队。