演讲要注意技巧，同时需要一篇好的演讲稿，小编为大家整理了英语演讲稿有关地球主题课前演讲，欢迎大家阅读。

篇一

Hello everyone,I'm ×××.My topic is "we should protect earth". As we all notice,the weather becomes very odd recently.In a month like now,it should be quite warm,but I'm still wearing my winter dresses.It's still rather cold,which shouldn't happen at this season.In summer it's extremely cold while terribly hot in winter.All these factors make earth a unfavourible place to live in. here you can show some pictures or other materials you have collected. We all know that earth is our common mother.We all live in it.She provides us everyting we need.She has been enormously generous to us.We should do our best to care for her. Now before it's too late,I think we should start to take actions.Protect the earth starting from you and me,from what we can do ourselves.For instance,ALWAYS throw rubbish in the bin and etc. Besides,we should try our best to know more about environment protection knowledge.The bad weather has made us suffer a lot.I believe everyone here has the same feeling as mine.I guess that's the price we paid for doing harm to the earth.We have nobody but ourselves to blame for that. At last,have you seen the movie"the day after tommorrow".It's a movie about weather.It's a good one and worth to have a look. THANK YOU!

篇二

as we all know, the challenge and opportunity always, confused with hope, in the 21st century, is also twin human facing challenges period. special performance in this aspect of the relation between man and nature. human deforestation, blind development farming, damaging the vegetation, causes soil erosion, desertification, any natural resources, make the underground mining mineral deposits in the increasingly exhausted, wastewater and waste, exhaust gas emission, make continuous natural environment seriously deteriorating.

human nature is excessive to take, suffer the nature ruthleretaliation: hurricane, rainstorm, storms, floods and drought, insect, heat, forest fires, earthquake, etc., the world because of drought disaster equipoised reasons caused the transference refugees until 2025 reach 100m. painful ecological lesson, has attracted the attention of the world and all mankind, ioc commission inspection bid cities, improving the eco-environment is one important content. china has issued a lot of environmental protection policies and regulations. our country also attaches great importance to the protection of environment education, the "building a green campus activities", in the country for grandeur.

students, our school is always in advocating "green wanli", which is one of important content protection beautify our campus. we often see many students on campus each picking up litter, with our own hands to protect a beautiful campus. however, we also often see some we don't want to see their scenario: the playground, stairs, corridor have the pa-pe-r scraps, the profession. again see the lawn, some classmates in trample, the school's green belts, sometimes found to have deep foot-prints, some places even gone became trail.

my fellow students, we is the 21st century master, awareneof environmental protection is modern signs. we must have the era of responsibility. responding to global, focus on the side, based on the campus. many curved waist, don't pick up peel confetti throws anywhere disorderly vomit, more step, don't crogreen belts, grassland. "kindnesmall and not for, is a sin to steal a pin," starts from me, since the childhood, starts from the side with, starting from now. to protect the earth mother, purify the campus.

we only have one world

as is known to all , we have a beautiful world .we can see the sun shining. we can see the moon in a full view. we can see the birds flying in the sky. we can see the horses running on the plain. however, the world is not as beautiul as before, for human beings have brought a disaster to the world.

so it is high time that we should do something to change this situation. as a citizen, we can do much for it. for example, we could use disposable goods less. and we are supposed to save resources such as water, electricity and so on. also, we ought to plant more trees to reduce the greenhouse effect. in addition, we could try our best to publicize the knowledge of environment protection. because we only have one world。

篇三

The celebration of Earth Day on April 22nd began in the United States in 1970 and was the brainchild of Senator Gaylord Nelson, who had long pondered about finding a way to "put the environment into the political 'limelight' once and for all" . Earth Day is a perfect time to reflect about what you are doing to help protect the environment. There are many ways that you can celebrate alone and with others.

篇四

save the earth

with the economic development, our lives become cosier. we can enjoy our comfortable lives. but do you know how things we use are produced?people produce ? and do you know where the material is from? it is from our mother, the earth. for example, we get fossil oil and coal from underground., they are the wealth that earth gives us. but at the same time human destroy the world, destroy our hometown.

what do we cause? global warming,ozone depletion, acid deposition and so on. because of these, th eearth becomes weaker and weaker.

the most serious problem is global warming. it means the air temperature rises around the world, the result of global warming is that glacier melts which leads to sea level rises .sea level rise may cause many dangerous things, such as drowning towns and villages, some small island countries are even in danger of being drowned. global warming damages human being, and also the earth. now everyone believes that mitigating global warming is urgent.

what should we do? our duty is to reduce carbon emission. firstly, we should choose a low-carbon life. for example, people can walk to offices and schools instead of driving a car. secondly, planting trees is a good and simple way. if everyone plants a tree every year, six billion trees will be planted in a year. how great it is! how clear air will be! thirdly, we should tell everybody the importance of living a simple life. let people act now.

you see, saving the earth isn’t difficult.if everybody makes a bit of change, our mother earth will smile at you.

篇五

Respect teacher, dear classmates, good morning!

Now, soil erosion is serious in our country, according to satellite remote sensing in 1992, covers an area of 179 soil and water loss. 4 square kilometers, 18 of the total land area. 7%. Desertification rapid development, desertification of land has reached 149 square kilometers, 15 of the total land area. 5%. Water pollution are also significantly increase, 42% of the city water is polluted.

The embankment with a small river near my house. It turns out that the water in the river bottom, the water and the freedom of fish were swimming. However, people often put the rubbish into the river to the, don't care for the environment. So lead to the river run gray, also an unpleasant smell, the fish died in the river.

The earth of the water resources, forest resources, biological resources, atmospheric resources... Could have continuous regeneration, make contributions to mankind over a long period of time. But people at random destruction of natural resources, not only make them not renewable, poses a serious threat to human existence, such as: forest resources will be long-term workers with down from one generation to another, but people only candy tree trees, not the hills near the bald, also can cause soil erosion, affect the preservation of water resources. If there is no water, we can survive?

The earth generous to raise our family. Shouldn't we should protect the ecological environment of the earth? Let us together to maintain the ecological balance of the earth, let the earth bring benefits to human better, make contributions to mankind!

My speech finished, thank you.