小学生英语演讲稿

Good afternoon teachers and classmates!I am Lihong from class2 of grade 5.today I will talk abuot technology!
Technology makes our life more and more comfortable. We use technological machines every day,such as TV,computer, refrigerator and air conditionor. Tv can help to relax ourselves when we go back home after a day's hard study. we can put furit ane vegetable into refrigerator . Then next time when you eat them,they are still fresh . In winter ,air conditionor can make our room warm ;in summer ,it makes room cold .
so technology is very important in our life ,we must study hard to improve it to make it work for us!
老师，同学们，下午好！我是李红，来自5年2班。今天我要讲的是科技！
科技使得我们的生活越来越舒适。我们每天都在用高科技的机器，例如：电视，冰箱、和空调。努力学习一天回家后电视可以帮我们放松自己。我们可以把水果蔬菜放进冰箱，这样下次吃的时候就是新鲜的。冬天时，空调可以让屋子暖和，夏天，可以变凉。
所以科技是非常重要的在生活中，我们必须努力学习去提高科技，让科技为我们服务！

The work of Environmental Science describes the environment, interprets the impact of human actions (anthropogenic effects) on terrestrial and aquatic ecosystems, and develops strategies for restoring ecosystems. In addition, environmental scientists help planners develop and construct buildings, transportation corridors, and utilities that protect water resources and reflect efficient and beneficial land use.[2]. Due to the interdisciplinary nature of environmental science, teams of professionals commonly work together to conduct environmental research or to produce Environmental Impact Statements. Other professional organizations engender work in environmental science and aid in communication among the diverse sciences.Since most environmental issues deal with human activities, study of economics, law and social sciences are often applied in conjunction with environmental science.Environmental science encompasses issues such as climate change, conservation, biodiversity, water quality, groundwater contamination , soil contamination, use of natural resources, waste management, sustainable development, disaster reduction, air pollution, and noise pollution.While the environment has been studied for at least as long as there has been science, the recent interest in putting the pieces of understanding together to study environmental systems has come alive as a substantive, active field of scientific investigation starting in the 1960s and 1970s. This has been driven by the need for a large multi-disciplined team to analyze complex environmental problems, the arrival of substantive environmental laws requiring specific environmental protocols of investigation, and growing public awareness of a need for action in addressing environmental problems.