PTE听力口语练习-科学60秒-autumn leaves

PTE考生目前最大的问题之一就是练习题缺乏。除了有限的基本官方书(PLUS,Testbuilder, OG)之外,就没有题了。很多英语基础不是很扎实的同学很难找到练习材料。墨尔本文波雅思PTE培训学校专门为墨尔本,悉尼PTE考生准备了适合PTE听力阅读练习的科学60秒。各位PTE同学可以练习PTE听力中的summarise spoken text和PTE口语中的retell lecture,PTE听力口语-科学60秒-Frosty Moss练习记笔记技巧和复述。废话少说,下面开始:


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In Autumn, New England foliage turns vibrant shades of red, yellow, and orange.
Which brings in lots of green,as in the money spent by tourists who flock to the region towitness the explosion of color.
Because of fall’s economic implications, exactly when the leafpeeping season will begin is thusa source of constant speculation.
Scientists know that factors including frost, heat, rain and drought all affect the timingbutthe whole colorful picture is still difficult to accurately predict.
Now scientists have picked apart satellite imagery from two New England forest ecosystemscollected from 2001 to 2012 to try to get a better handle on exactly what factors influence theautumn leaves.
The scientists looked at northeastern highlands and coastal zones.
They incorporated available data on chills, frosts and heat, and rain, drought, and flooding.
In general, cold, wet and extreme heat made leaves change color sooner, while moderateheat and low rainfall delayed the coloration.
But the different ecosystems behaved differently.
Forests in the highlands reacted to frosts both in spring and in the fall, while the coast onlyresponded to fall frosts.
The coastal region’s forests were also particularly sensitive to rain and flooding.
Incorporating climate change predictions for the next century, the researchers propose that thehighlands will change color later in the fall, while the coast may start to turn earlier.
The study is in the Proceedings of the National Academy of Sciences.
The researchers note that more data, such as for extreme weather events and flooding, needto be incorporated into future models.
Which could help New England states maximize fall’s economic windfall.


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