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英['lɪs(ə)n] 美['lɪsn]
vi. 听,倾听;听从,听信
n. 听,倾听

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草莓小菇凉:说的非常好,十分有道理,棒棒棒!

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托福TPO23综合写作阅读+听力原文+满分范文

2018-12-19 12:19:03 发布 来源:雷哥托福 阅读量:2674

雷哥托福小托君给大家分享TPO1-33综合作文部分的阅读和听力文本全集与综合作文的满分作文,以及满分作文的解析。如果自己的托福综合作文分数如果可以很给力的话,就已经搞定了15分的分数,可以极大地缓解托福独立作文的压力。材料如何使用呢?

首先,就是在自己做托福TPO模考之后,可以根据这里面的听力的文本,来检验自己的听力内容是否抓的足够好,尤其是要看写的够不够全!很多时候,我们的综合作文之所以分低,就是因为听力写的不全!

第二点,也可以用于在托福考试前来做跟读,有不少托福考生跟小托君说,自己的口语实力不够,那么做跟读,仔细地来模仿ETS官方素材,是一个很好的提高自己口语的方式。毕竟托福口语最终考的,是口语本身说的是否足够流畅,要想在考试的时候说的很流畅,就是要在平时张口多说,只有多说,我们才能够做到足够的流利。

第三点,熟悉托福考试的专业词汇。不少托福考生之所以在听力考试里面不够给力,是因为对于里面的专业词汇不够熟悉。毕竟在托福考试过程中,如果核心词汇都不懂的话,那么在听力部分只能是束手就擒了。因此,各位托福考生可以通过这份综合写作的听力和阅读材料,来熟悉托福作文之中的专业词汇。 

TPO23综合写作听力+阅读原文

Reading

Populations of the yellow cedar, a species of tree that is common in northwestern North America, have been steadily declining for more than a century now, since about 1880. Scientists have advanced several hypotheses explain this decline.

One hypothesis is that the yellow cedar decline may be caused by insect parasites, specifically the cedar bark beetle. This beetle is known to attack cedar trees; the beetle larvae eat the wood. There have been recorded instances of sustained beetle attacks overwhelming and killing yellow cedars, so this insect is a good candidate for the cause of the tree’s decline.

A second hypothesis attributes the decline to brown bears. Bears sometimes claw at the cedars in order to eat the tree bark, which has a high sugar content. In fact, the cedar bark can contain as much sugar as the wild berries that are a staple of the bears’ diet. Although the bears’ clawing is unlikely to destroy trees by itself, their aggressive feeding habits may critically weaken enough trees to be responsible for the decline.

The third hypothesis states that gradual changes of climate may be to blame. Over the last hundred years, the patterns of seasonal as well as day-to-day temperatures have changed in northwestern North America. These changes have affected the root systems of the yellow cedar trees: the fine surface roots now start growing in the late winter rather than in the early spring. The change in the timing of root growth may have significant consequences. Growing roots are sensitive and are therefore likely to suffer damage from partial freezing on cold winter nights. This frozen root damage may be capable of undermining the health of the whole tree, eventually killing it.


Listening

Unfortunately, we still don’t know what’s killing the yellow cedar, none of the explanations discussed in the reading is adequate.

First, the cedar bark beetle. Well, the problem with this explanation is that healthy yellow cedars are generally much more resistant to insect infestation than other tree species. For example, the bark and leaves of yellow cedar are saturated with powerful chemicals that are poisonous to insects. So, healthy cedars are unlikely to suffer from insect damage. So, how can we explain those dead cedars that were infested with beetles. In those cases, the beetles attack trees that were already damaged or sick, and would’ve probably died anyway. So, the beetles are not the fundamental cause responsible for the decline of yellow cedars.

Second, although bears damage some trees, there’re not the cause of the overall population decline. Yellow cedar population’s been declining all across the northwestern coast of North America both on the mainland and on islands just off the coast. There were no bears on the islands, yet the islands cedars are still in decline. Since the decline occurs with and without bears, the bears cannot be responsible.

And finally, the theory about roots suffering from frost damage, well, the reading passage forgot to take one factor into account. Many more trees are dying at lower elevations where it is warm than at higher elevations where it is cold. If freezing damage were responsible for the decline, we could expect to see more trees dying in the cold weather of higher elevations. Instead, more trees are dying in the relative warmth of the lower elevations. So, although the climate change may have made the cedar roots more sensitive than it used to be, this isn’t what’s killing them.


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