PTE听力练习题46-老托93-fossil fuels

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PTE练习的lecture 93篇。各位PTE同学可以练习阅读,练习记笔记技巧,可以练习复述,甚至可以练习describe image。废话少说,下面开始:


Today I want to discuss fossil fuels such as coal, oil, and natural gas. The term “fossil fuel” refers to the trapped remains of plants and animals in sedimentary rock. You see, living plants trap energy from the sun by the process of photosynthesis, and they store the energy in their chemical compounds. Most of that energy is released when the plant dies and decays. However, sometimes organic matter is buried before it decays completely. In this way some of the solar energy becomes trapped in rocks, hence the name fossil fuel. Although the amount of organic matter trapped in any one growing season is small, the accumulated remains from millions of years are considerable. Because the accumulation rate is so slow, millions of times slower than the rate at which we now dig up this organic matter and burn it for energy, we must consider fossil fuels as nonrenewable resources. Tomorrow we’ll be discussing alternatives to fossil fuels that can be renewed.

【生词摘录】
1. fossil fuel: 化石燃料
2. trapped: adj. 捕集的,捕获的
3. remains: n. [C]残留
4. sedimentary: adj. 沉积的
5. photosynthesis: n. [U]光合作用
6. decay: v. 腐烂
7. considerable: adj. 相当多的,相当可观的
8. nonrenewable: adj. 不可再生的
9. alternative: n. 二中选一,可供选择的事物

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