新托福写作真经2 2010221综合写作

1 paraphrasing : TheTheTheThe fertilizationfertilizationfertilizationfertilization(词语替换)is the intentional introduction of iron to the upper ocean to taketaketaketake carboncarboncarboncarbon dioxidedioxidedioxidedioxide outoutoutout ofofofof thethethethe atmosphereatmosphereatmosphereatmosphere and therefore to help slow or even reverse global warming. But this approach has some negative impacts on our planet 根据1： However, ironironironiron fertilizationfertilizationfertilizationfertilization can only absorbabsorbabsorbabsorb a small amount of carbon dioxide. paraphrasing : But thisthisthisthis planplanplanplan(同义词替换) is not very efficient as only little carbon dioxide can bebebebe absorbedabsorbedabsorbedabsorbed by algae. 根据2： iron fertilization also leads to an increasing growth of algae that produce toxic chemical materials, which can bebebebe fatalfatalfatalfatal totototo fishfishfishfish. So scientists worried about what might happen if humans eat fish that eat algae which contain chemical materials. paraphrasing : IronIronIronIron additionadditionadditionaddition inininin oceanoceanoceanocean fertilization(fertilization(fertilization(fertilization(词语替换)))) produces toxic chemical materials in algae, which will dodododo harmharmharmharm totototo the locallocallocallocal fishfishfishfish industryindustryindustryindustry because fish might eat contaminated algae. Human 2 beings will be harmed also if they eat those toxic fish. 根据 3： Iron fertilization disrupts the natural balance of the marinemarinemarinemarine ecosystemecosystemecosystemecosystem and changeschangeschangeschanges higher levels of the food chain. It is naïve to solvesolvesolvesolve one problem bybybyby creating another one. paraphrasing: TheTheTheThe technologytechnologytechnologytechnology ofofofof oceanoceanoceanocean fertilizationfertilizationfertilizationfertilization withwithwithwith ironironironiron (词语替 换)damages ecologicalecologicalecologicalecological balancebalancebalancebalance ofofofof oceanoceanoceanocean and impactsimpactsimpactsimpacts negativelynegativelynegativelynegatively onononon higher levels of the food chain. It is foolish to cope with one problem at the cost of creating another grave threat to world environment. 反驳： Many ideas…climate change, one of the most promising…iron fertilization. paraphrasing : Iron fertilization is one of the most promising ideas of reversing global warming. 理由1： Algae blooms last two to three months… absorbs more carbon dioxide. paraphrasing :Most algae blooms can last two or three months, in which great amount of carbon dioxide would be absorbed and removed from atmosphere gradually. 理由 2： Toxic algae…unfounded, because far away from fisheries, 3 unlikely to affect human being. Iron fertilization…practice isolated from marine populations. paraphrasing :Toxic algae survive far away from fisheries, and human beings are unlikely to be threatened by toxic fish. In addition, iron fertilization might produce toxic chemical materials, but this plan can be practiced in isolation from the area where large marine populations live. 理由3： Iron fertilization carries risks, but not as large as doing nothing. It changes small ecosystems, but better than changing world ecosystem. paraphrasing :It is worth to take the risk carried by iron fertilization since global warming is more harmful to our planet than regional ocean bio-system risk. So people should concern more about global warning , ignoring ocean’s biology system damage.