托福大作文185篇分类整理范文7---环境保护.doc

Topic: 29People have been living on the Earth for thousands of years. Human activity influences the Earth.Some people believe that the Earth is being harmed by human activity. Others feel that humanactivity makes the Earth a better place to live. In my opinion, the earth is being damaged byhuman activity. There are many statements supporting my opinion.Human activity has damaged natural environment and almost exausted natural resources. Modernindustry needs more and more resources, including minerals, fuels and water. So we confront ofthe serious problems such as the lack of fuels and water. Ecological balance is damaged becausefactories occupy many places where animals and plants live. More and more buildings areconstructed and forests become less and less. If we cannot recognize these problems and solvethem soon, we would finally lose the environment suitable for our living.An other serious problem is the green- house effect. Human activity decreases forests andincreases the usage of fuels so that the gas of carbon dioxide is output more and more and thereare not enough plants to absorb it. The green-house effect is more obvious and more sensiblethese years. Due to the effect, icebergs in the south polar and north polar melt and the sea levelbecomes higher than before. I am worried about the cities nearby the sea and hope scientists findan effective method to eliminate the green- house effect.Although we have advanced machines and our life seems more comfortable than before, we haveless chances to approach natures and less spaces to act. The cities become bigger and if we wantto have a picnic with our friends, we have to drive a long distance to find a natural place. In fact,the spaces of human activity are being damaged by the skyscrapers and factories.From the above stateme nts, we can conclude that human activity brings the Earth many damages.Fortunately people have recognized the point and I believe that the Earth will become a betterplace to live with our ceaseless efforts.Topic: 29Nowadays our Earth faces a number of serious problems, such as the environment pollution, theincreasing population, the fatal effects of nuclear weapons, and so on. So some people believe thatthe Earth is being harmed by human activity. But as far as I am concerned that human activitymakes the Earth a better place to live and also makes some negative effects in this process. Myarguments for this point are listed as follows.Even though we face so many crisis, no one can deny that Earth are more suitable for humanhabitation. That is the result of the efforts of generations of people. If without that, we might alsolive in caves and eat the crude food just like wild animals. If that is true, we must havent time andenergy to think over the problems of the Earth because we have to look for food and avoidbecoming the food of other animals. At that state, whether the Earth were harmed is not importantfor human because some certain crisises can annihilate the total population, such as someinfectious disease or the a change of climates.It is inevitable to produce some positive aspect functions when human are struggle to improve thesurvive abilities and from the experiences of history we also have make great effort to resolve thiskinds of problems. For example, most of people hope to limit the scope of nuclear weapons andthe protection of environment is accept by almost every one. Most of problems are controlled byourselves and some of them have the hope to be resolved in years. We are finding the balancebetween the development and the protection of our Earth. So it is unnecessary to deny theadvancement of human.For the reasons presented above, we admit that there are some problems in the process of thehuman development, but those problems are resolving and as a who le we make the Earth a betterplace to live. Human evolved in the mode of continuing to correct their mistakes and making abetter progress.Topic: 29The quality of human life has improved greatly over the past few centuries, but Earth is beingharmed more and more by human activity. As we develop our technology, we demand more fromour planet. Eventually, this will harm people as well.Our planet gives us everything we need, but natural resources are not endless. Strip miningdevastates whole regions, leaving bare and useless ground. Deforestation removes old growthtrees that cant be replaced. Too much fishing may harm fish populations to the point where theycant recover. We are too careless in taking what we want without giving anything back.There are more people than ever, living longer than ever. So is it any surprise that many areassuffer from too much development? Anyone living in or near a city has experienced urbansprawl. There is a new shopping area on every corner and new houses, townhouses andapartments everywhere. Traffic gets worse and worse because planners cant keep up with growth.Keeping up with human demand is hard enough. Environmental concerns come in last.With growth comes pollution. Companies and communities dump waste into water. Landfills arefull of trash. Emissions from factories pollute the air. Barrels of industrial waste and worse,radioactive waste, have no safe place to go. If were not careful, we can harm our planet beyondrepair.People need to respect the Earth and try to preserve it. If we dont, what kind of future will wehave?Topic: 41In the past, there have been many endangered animals. Now they are extinct. Does it matter? Hasour environment been affected by their absence? Has the quality of our own life been changed?The answer to these questions is Yes.It does matter if we destroy an endangered species habitat to develop more farmland, housing orindustrial parks. There is a delicate balance of nature. If one small part is removed, it will affect allthe other parts. For example, if certain trees are cut down, bats will have no place to roost. If theycannot roost, they cannot breed. If there are no bats, there will be no animal, or bird to eat certaininsects that plague our crops.Our environment has been affected by the absence of certain animals. Certain flowers arepollinated by butterflies which migrate from Canada to Mexico. Some of the breeding grounds ofthese butterflies were destroyed. Now these flowers are disappearing from certain areas. We willno longer be able to enjoy their beauty.The quality of our life has been changed. America used to be covered with giant trees. Now wehave to visit them in one small park. Rainforests around the world are being cut down to makeroom for humans. We will never be able to see or study this fragile ecosystem.I would encourage us humans to look for other alternatives for our farmlands, housing, andindustries. We have alternatives; the animals do not.Topic: 56Deciding between supporting the arts and protecting the environment is a difficult choice to make,but I think I would choose protecting the environment. Arts help to maintain our culture and serveas a source of entertainment. However, we need a healthy environment in order to survive so wemust protect it. We need to protect the environment now to help prevent health problems, tomaintain the ecosystem, and to preserve the Earth for our children.Pollution from factories and cars can cause damage to the environment. Moreover, pollutioncauses health problems particularly for children and the elderly who have weaker immunesystems. We need to ensure that there are controls on the amount of pollution when possible so asto prevent health problems caused by breathing dirty air.We also need to pay attention to the ecosystem. Trees, plant life, and people all depend on eachother. An unhealthy environment can have harmful effects on the ecosystem. For example, if aplant dies because of changes to the environment and that plant is food for a animal, that animalwont have any food. If humans use that animal as a food source, there could be big problems.If we do not respect our environment now, it will continue to get worse and our children willsuffer the consequences. They would not have the same quality of air to breathe or natural beautyto admire. That would be sad.Without clean air to breathe, a healthy ecosystem, and a future for our children, the human racewould not survive. Thats why protecting our environment is important. If we have a healthyenvironment, we have healthy children who will be able to participate and appreciate the arts.Topic: 152Many natural resources are disappearing or being wasted on our planet every day. One of themost important resources we are abusing is our trees. Each year, hundreds of thousands of acresof trees disappear in countries all around the world. In some countries, these trees are used forfuel. In other countries, trees are destroyed to build housing developments and shopping centers.Saving trees has become a major cultural and economic issue in many areas of the world.Trees are essential to our survival. They are a major part of the process of photosynthesis.Photosynthesis is the process in which green plants use carbon dioxide to produce oxygen, andoxygen is something all of us need. The fewer trees there are, the more this affects our ability tobreathe.Trees are also important in the development of many medicines. The mainstream medicalestablishment did not recognize this for many years. However, those who use natural medicineshave always known how important trees are. Now scientists are agreeing with them. Many drugscome from the leaves of certain trees, along with other herbs and plants.In rural areas, farmers have always known how important trees are to soil conservation. This iswhy youll usually see trees lining a field. Tree roots help keep the soil in place, and are also afactor in water distribution deep beneath the ground.Finally, we should save trees from disappearing because they provide so much pleasure. I thinkthat I shall never see a poem as lovely as a tree, wrote a poet. That is the truth. A tall, stately treeis beautiful to look at, and pleasing to the soul. It is also a great place to find shade on a hotsummers day. For practical and emotional reasons, we need to preserve our planets trees.Topic: 181Its hard to deny that with the developing of ecnomics there is more and more land used forhousing and industry.But to use land is a two-folded weapen:you may get benifits from it,but inmany cases you may meet troubles.For my country,China,which has her children far more than any other country, the need to leaveland in its natural condition outweighs the need to develope it for housing and industry.Here arethe reasons for it.First,China is one of the most polluted countries in the world.The need for land to be leftundevoloped is more necessary now than ever before.Because in this way the land will bring usmany plants and beasts,especilly plants, which contribute much to lessen pollution and make theearth a good place for living.Besides,leaving the land alone is important for a country to devolope permanently.If we used upall the land for housing and industry,what shall we leave for our offspings?A polluted earth withher sopping face?That is a problem more and more recognized by many scients and poliotitionsalike.The last but not the least,the number of persons live in China is growing rapidly.To leave the landalone now and devolope it when it is necessary and can be used feasibly is the best way to solvethe problem refered before.In all,though it is a hard choice,more and more people are aware that the need for land to be leftin its natural condition is more than be developed for hou