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托福TPO73寫作題目及范文PDF高清下載(綜合+獨立)

2022/7/16 17:40:46來源：新航道作者：新航道

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摘要：托福考試前很多考生通過TPO練習來提高自己的托福解答能力，目前TPO也已經更新到74了，今天新航道上海學校托福小編給為大家先分享TPO73寫作題目及范文PDF高清版(綜合+獨立)，方便大家做考前練習!

托福考試前很多考生通過TPO練習來提高自己的托福解答能力，目前TPO也已經更新到74了，今天新航道上海學校托福 小編給為大家先分享TPO73寫作題目及范文PDF高清版(綜合+獨立)，方便大家做考前練習!

The yellow crazy ant is one of the world's most destructive invasive species(species that are not native to an area but rather introduced to it).It has spread to many regions of Earth and caused great damage to native ecosystems.In recent decades, the crazy ant has invaded part of a unique palm forest on one of the Seychelles Islands off the coast of Africa.Some strategies are being considered to stop the ant from spreading farther and damaging the unique ecosystem of the palm forest.

One of the strategies proposed to stop the ants is to use traps containing a low concentration of chemicals that are toxic to the ants.These ant traps have been successfully used in other locations,such as an island near Australia,where up to 99 percent of the invasive ant population has been killed by traps.

Another strategy would be to cut down broad-leaved trees,which are the ants favorite habitat.Broad-leaved trees host a type of insect that provides food (a sugary substance)for the yellow crazy ants.The broad-leaved trees are not native to the palm forest;they were introduced there recently.Removing the trees would not damage the palm forest ecosystem,but it would reduce the extent of the habitat preferred by the invasive ants,which might reduce their population.

Finally,it has been noted that ant populations are significantly denser near areas with human activity.Recently,a sharp increase in yellow crazy ants has been observed at one edge of the palm forest where a new visitor center was built,which suggests that more ants were transported to the area with construction material used for the center and that the ants have been eating food left behind by visitors there.Limiting human activity near the palm forest could help reduce ant populations.

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