保护老建筑的意义英语作文【一】
臭氧层是指距离地球25-30公里处臭氧分子相对富集的大气平流层。它能吸收99%以上对人类有害的太阳紫外线，保护地球上的生命免遭短波紫外线的伤害。所以，臭氧层被誉为地球上生物生存繁衍的保护伞。
保护臭氧层就是保护蓝天，保护地球生命。为了唤起公众环境保护意识，1995年1月23日联合国大会决定，每年的9月16日为国际保护臭氧层日(International Day for the Preservation of the Ozone Layer，要求所有缔约国按照《关于消耗臭氧层物质的蒙特利尔议定书》及其修正案的目标，采取具体行动纪念这个日子。
保护老建筑的意义英语作文【二】
活动式教学的目的性一定要强。每个环节的教学内容一定要依据教学目标来确定，既要使课堂活跃起来，还不能让课堂显出混乱。活动的多样性，小学生的本身差异较大，教师设计的活动一定要紧跟教学实际，让学生真正在学以致用。活动的控制性一定要强，教师在每一项活动中都要有较强的控制力，当某一活动偏离主题时，教师一定要及时地拉回来，不要浪费宝贵的时间。活动的创造性一定要好，不能只是课本内容的简单再现，要依据内容进行引申和创新，这样一方面可以激发学生的学习兴趣，另一方面也可以培养学生的创新能力。
综上所述，活动式教学是一种有效的英语教学方法，英语教师要灵活运用，鼓励学生积极参与，培养学生的英语学习习惯与能力，提高课堂教学的效率。
保护老建筑的意义英语作文【三】
Giant Panda is our national treasure, the state can be said for the protection of giant pandas put a lot of human and material resources giant now has been the world's people the protection and care, which is a good thing, of course, the Tibetan antelope as the country's animal protection , The National People have been recognized, however, this tiger? The poor will be extinct Siberian tiger who is going to have a genuine concern and care a little bit?
According to statistics, the Siberian tiger left at present, less than 20, still such a small number of these survive, has had imagined. Two years ago, in the mountains of Huanren, Liaoning found to be a man to die under the presentation of the Siberian tiger, from this we can see that the above countries and the people of the importance we attach to it, this first Manchurian tiger is actually how the dead do not Conclusion, and the other is only from the northeast where hu came to the place where the wonder and the third is the matter did not rise to the national media in particular. This really puzzled the other person you! Is it really the other tiger who fear love is not worth it, it really fate of the Siberian tiger so?
Towering mountains should not unique to human beings, should not have dense forest unique to human beings, rivers clear this should not be unique to human beings, the Siberian tiger survival of this nature should not be unique to human beings. Siberian tiger to the left of a piece of heaven and earth to survive it, the High IQ is the human species, there are still ways to leave that piece of local survival, and the tiger have to leave that piece of the local dead; you save tigers, is the human population control, engage in Family planning, and the Siberian tiger is scarce Rending it! Now we can hear the cries of tigers in the future even the Siberian tiger can be heard the cries.
保护老建筑的意义英语作文【四】
Tiger is one of the most valueable animals to human beings today. It is somehow like a cat, but much bigger than it. It lives in the forest, and feeds on small animals.
Nowadays, the number of the wild tiger is becoming small and small. Maybe there will be no tiger any more if people continue cutting the trees, destorying the living environment or hunt the tiger just for the skin. We must stop all these mistakes. We should protect them, because the world without tiger is not a completed one.
Tiger is one of the most valueable animals to human beings today. It is somehow like a cat, but much bigger than it. It lives in the forest, and feeds on small animals.
Nowadays, the number of the wild tiger is becoming small and small. Maybe there will be no tiger any more if people continue cutting the trees, destorying the living environment or hunt the tiger just for the skin. We must stop all these mistakes. We should protect them, because the world without tiger is not a completed one.
