1、organic waste, inorganic waste and poisonous harmful waste. Now, we are going to talk about each sort of waste one by one.Material waste: it means the waste of substance or things from which something else can be made. For example, people throw away the used metal products and buy a new one, so the
2、old metal waste accumulates. At last, they become waste. For example, when people finish reading newspaper, the paper will become waste. When the glass is broken, it also becomes waste. Nobody wants to use a broken window or drink with a broken glass or wear a pair of broken glasses. Once it is brok
3、en, it becomes waste.The rate of using plastics is increasing day by day. People use plastic bags because they are convenient. When they get home, they throw the plastics way, paying no attention to the environment. The more convenience plastics brings to us, the more plastic waste is produced. This
4、 is called “white pollution” as most plastics are white. Some of our products we use every day are made of rubber, just like the tyres and the bottom part of our shoes. Its true that rubber plays an important role in our life. However, it also brings us some trouble when it has been used for a long
5、time and becomes old. The old tyres become waste because it cant break down by nature. This is really a big problem.大学生英语演讲稿环保(2)Environment - how can we help protect it?Our planet is in trouble!Almost every day we seem to hear of yet another problem affecting the environment - and what a list of pr
6、oblems!- pollution,acid rain,global warming,the destruction of rainforests and other wild habitats,the decline and extinction of thousands of species of animals and plants.and so on.Nowadays,most of us know that these threats exist and that humans have caused them.Many of us are very worried about t
7、he future of our planet and unless we can find a way of solving the problems we have made then the environment will suffer even more.It all sounds so depressing - but we certainly mustn t despair!Every one of us,whatever age we are,can do something to help slow down and reverse some of the damage.We
8、 cannot leave the problem-solving entirely to the experts - we all have a responsibility for our environment.We must learn to live in a sustainable way i.e.learn to use our natural resources which include air,freshwater,forests,wildlife,farmland and seas without damaging them.As populations expand a
9、nd lifestyles change,we must keep the World in good condition so that future generations will have the same natural resources that we have.Here are just a few ideas to help you to do something to protect our environment.plant more trees;.saving energy and water;.minimise waste;.use as much public tr
10、ansport as you can;.protect wild animals.大学生英语演讲稿环保(3)Dear students:How are you!In the previous several exams, I have gained good results, first of all thanks to my efforts, of course, learning is also very important. Next, I gave you about my learning experience.I feel good in order to learn first-
11、come interested in learning. As the saying goes: Interest is the best teacher. With interest will be motivated to learn, the more naturally learn better. Second, in order to improve learning, we must master the correct way to learn, learn to digest, giving top priority, this is the most important. I
12、n learning, our minds must have three words - Why! Smart people know that; wise men know to listen to; smart people know to ask. The last is sure to be hard work, this is the most important, even Thomas Edison said Genius needs ninety-nine percent perspiration. School should seriously lectures, and
13、pay attention to more independent thinking, do not know want to ask, to exercise their thinking skills. Careful and meticulous to teacher assignments, must not be careless.There is, to take notes, preview before clathe best, first have a preliminary understanding of the text, which for the next clac
14、an more easily absorb. After-school must also be reviewed, and consolidate the knowledge about good teachers, and lay a solid foundation. The ancients have said: Reviewing the Old, to be a teacher. Not also the truth? Best to pay attention to work and rest. Only care about the death of reading is of no use to let my mind relax properly for the job such as playing baseball, listening to music, watch TV news.Finally, I want to say do not you go stronger than others, then you have to and they are better than weak, you challenged yourself to stay on a par
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