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Forest fires: the good and the bad
Every year it seems like there’s another disastrous wildfire in the American West. In 2018, nearly 9 million acres were burned in the US alone. Uncontrolled fires often started accidentally by people, rampage and decimate forests. F
or most people, a forest fire is synonymous with disaster. But there are some kinds of forest fires that actually benefit the environment.
A controlled burn is a wildfire that people set intentionally for a specific purpose. Well-thought-out and wellmanaged controlled burns can be incredibly beneficial for forest management—in part because they can help stop an out-of-control wildfire. The technique is called backburning, and it involves setting a controlled fire in the path of the approaching wildfire. All the flammable material is burnt up and extinguished. When the wildfire approaches, there’s no more fuel left for it to keep going, and it dies out.
Controlled burns are also used to prevent forest fires. Even before human involvement, natural, low-intensity wildfires occurred every few years to burn up fuel, plant debris, and dead trees, making way for young, healthy trees and vegetation to thrive. That new growth in turn supports forest wildlife. Forest managers are now replicating this natural strategy when appropriate, starting manageable, slow-burning fires to make room for new life that will help keep the forest healthy in the long term.
The same method is one of WWF’s strategies for maintaining grassland habitats in the Northern Great Plains. Working with partners such as the U.S. Fish and Wildlife Service, WWF has intentionally burned hundreds of acres of prairie land to revitalize these key habitats. The fire burns off tall, aggressive vegetation that isn’t as hospitable to wildlife, and makes room for new growth that attracts bison, birds, and prairie dogs.
This doesn’t mean all intentional wildfires are good – far from it. Many of the fires intentionally set for agriculture and land clearing are at best ill-advised, and at worst devastating. Slash and burn fires are set every day to destroy large sections of forests. Of course, these forests don’t just remove trees; they kill and displace wildlife, alter water cycles and soil fertility, and endanger the lives and livelihoods of local communities. They also can rage out of control. In 1997, fires set intentionally to clear forests in Indonesia escalated into one of the largest wildfires in recorded history. Hundreds of people died; millions of acres burned; already at-risk species like orangutans perished by the hundreds; and a smoke and ash haze hung over southeast Asia for months, reducing visibility and causing acute health conditions.
That’s exactly why WWF helps governments around the world crack down on slash and burn deforestation. WWF also works with farmers and companies to stop unnecessary agricultural burns. And when our scientists think fire could be the best solution for revitalizing wild areas, we bring the right experts to the table to study the situation and come up with a plan.
All fire is risky. To minimize that risk as much as possible, controlled burns must be well-considered, wellplanned, and ignited and maintained by trained professionals. The bottom line? Fire can be a tool for conservation, but only when used the right way.
Disponível em: https://www.worldwildlife.org/stories/forest-fires-the-good-and-the-bad. Acesso em: 08 out. 2019
A tabela a seguir apresenta a distribuição dos pontos de uma avaliação realizada com 100 alunos.
Pontos 0 1 2 3 4 5 6 7 8 9 10
Alunos 2 5 8 10 15 17 15 12 8 4 4
Analisando-se os dados dessa tabela, a média do número de pontos desses alunos é igual a
The New Colossus
by Emma Lazarus Not like the brazen giant of Greek fame, With conquering limbs astride from land to land; Here at our sea-washed, sunset gates shall stand A mighty woman with a torch, whose flame Is the imprisoned lightning, and her name Mother of Exiles. From her beacon-hand Glows world-wide welcome; her mild eyes command The air-bridged harbor that twin cities frame. "Keep, ancient lands, your storied pomp!" cries she With silent lips. "Give me your tired, your poor, Your huddled masses yearning to breathe free, The wretched refuse of your teeming shore. Send these, the homeless, tempest-tost to me, I lift my lamp beside the golden door!" Considering the text above, judge the following excerpts:
The 38 Most Famous Poems Ever Written in the English Language (earlybirdbooks.com)
Read the following text to answer the question.
By Leo Selivan
In this article, informed by the Lexical Approach, I reflect on grammar instruction in the classroom […]. I consider the problems with ‘traditional’ grammar teaching before arguing that what we actually need is more grammar input as well as showing how lexis can provide necessary ‘crutches’ for the learner.
Lexis = vocabulary + grammar
The shift in ELT from grammar to lexis mirrors a similar change in the attitude of linguists. In the past linguists were preoccupied with the grammar of language; however the advances in corpus linguistics have pushed lexis to the forefront. The term ‘lexis’, which was traditionally used by linguists, is a common word these days and frequently used even in textbooks.
Why use a technical term borrowed from the realm of linguistics instead of the word ‘vocabulary’? Quite simply because vocabulary is typically seen as individual words (often presented in lists) whereas lexis is a somewhat wider concept and consists of collocations, chunks and formulaic expressions. It also includes certain patterns that were traditionally associated with the grammar of a language, e.g. If I were you…, I haven’t seen you for ages etc.
Recognising certain grammar structures as lexical items means that they can be introduced much earlier, without structural analysis or elaboration. Indeed, since the concept of notions and functions made its way into language teaching, particularly as Communicative Language Teaching (CLT) gained prominence, some structures associated with grammar started to be taught lexically (or functionally). I’d like to is not taught as ‹the conditional› but as a chunk expressing desire. Similarly many other ‹traditional› grammar items can be introduced lexically relatively early on.
Less grammar or more grammar?
You are, no doubt, all familiar with students who on one hand seem to know the ‘rules’ of grammar but still fail to produce grammatically correct sentences when speaking or, on the other, sound unnatural and foreign-like even when their sentences are grammatically correct. Michael Lewis, who might be considered the founder of the Lexical Approach, once claimed that there was no direct relationship between the knowledge of grammar and speaking. In contrast, the knowledge of formulaic language has been shown by research to have a significant bearing on the natural language production.
Furthermore, certain grammar rules are practically impossible to learn. Dave Willis cites the grammar of orientation (which includes the notoriously difficult present perfect and the uses of certain modal verbs) as particularly resistant to teaching. The only way to grasp their meaning is through continuous exposure and use.
Finally, even the most authoritative English grammars never claim to provide a comprehensive description of all the grammar, hence the word ‘introduction’ often used in their titles (for instance, Huddleston & Pullum’s A Student’s Introduction to English Grammar or Halliday’s An Introduction to Functional Grammar).
If grammarians do not even attempt to address all areas of grammar, how can we, practitioners, cover all the aspects of grammar in our teaching, especially if all we seem to focus on is a limited selection of discrete items, comprised mostly of tenses and a handful of modal verbs? It would seem that we need to expose our students to a lot of naturally occurring language and frequently draw their attention to various grammar points as they arise.
For example, while teaching the expression fall asleep / be asleep you can ask your students:
• Don’t make any noise – she’s fallen asleep.
• Don’t make any noise – she’s asleep.
What does’s stand for in each of these cases (is or has)?
One of the fathers of the Communicative Language Teaching Henry Widdowson advocated using lexical items as a starting point and then ‘showing how they need to be grammatically modified to be communicatively effective’ (1990:95). For example, when exploring a text with your students, you may come across a sentence like this:
• They’ve been married for seven years.
You can ask your students: When did they get married? How should you change the sentence if the couple you are talking about is no longer married?
The above demonstrates how the teacher should be constantly on the ball and take every opportunity to draw students’ attention to grammar. Such short but frequent ‘grammar spots’ will help to slowly raise students’ awareness and build their understanding of the English grammar system.
[…]
Conclusion
So is there room for grammar instruction in the classroom? Certainly yes. But the grammar practice should always start with the exploitation of lexical items. Exposing students to a lot of natural and contextualised examples will offer a lexical way into the grammar of the language.
To sum up, grammar should play some role in language teaching but should not occupy a big part of class time. Instead grammar should be delivered in small but frequent portions. Students should be encouraged to collect a lot of examples of a particular structure before being invited to analyse it. Hence, analysis should be preceded by synthesis.
Lastly, language practitioners should bear in mind that grammar acquisition is an incremental process which requires frequent focus and refocus on the items already studied.
Available at: https://www.teachingenglish.org.uk/professionaldevelopment/teachers/knowing-subject/articles/grammar-vs-lexisor-grammar-through. Accessed on: April 29, 2024.