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Nature
is like a great magician, performing wonders on Earth. One of them is the
Amazon rainforest, the world's largest and home to millions of plants and
animals. Nicknamed "the lungs of our planet", it generates about one-fifth
of Earth's oxygen. However, this wonderful natural wonder is currently in danger.
Thousands
of fires have broken out in Brazil, endangering much of the rainforest. These
blazes have lasted several weeks and are believed to be the "most intense"
in almost a decade, according to BBC News.
The
Amazon has seen a large number of fires in 2019. Between January and August,
there were over 74,000 fires the highest number since 2013, the BBC reported.
Forest
fires are common during the dry season, which runs from July to October. They
are usually caused by natural events, such as lightning strikes. However, most
of the fires this year are believed to be caused by farmers, who use fire as a
traditional part of tropical agriculture to clean land, reported CNN.
The
disaster has raised concern around the world. The Amazon rainforest is
important for preventing climate change, said the BBC, absorbing millions of
tons of carbon annually. When trees are cut down or burned, the rainforest's
capacity (能力)to absorb carbon is reduced.
Brazilian
climate expert Carlos Nobre told Reuters he's worried. If more than 20 percent
of the ecosystem is destroyed, the Amazon rainforest could reach a
"tipping point (临界点)where the thick jungle will turn into a
tropical savannah (大草原).
Nobre
warned that it is not far off, with between 15 and 17 percent of the rainforest
having already been destroyed.
The
Brazilian government has sent soldiers to fight the fires. Many people have
offered their support and called for recovery efforts. For example, Tim Cook,
CEO of Apple, said he wanted to donate money and US Actor Leonardo DiCaprio's
environmental charity, Earth Alliance, created a donation fund to help deal
with the crisis.
The
public are also encouraged to donate to charities concerned with rainforest
preservation (保护)."Every little bit helps in a
tragic situation like this," commented Gizmodo.
（1）The underlined word "intense" in Para.2 probably means _______.
A . natural
B . fierce
C . common
D . unexpected
（2）What is the main cause of forest fires in the Amazon rainforest this year?
A . Lightning strikes.
B . Hot weather.
C . Agricultural activities.
D . Garbage left by tourists.
（3）What was Nobre worried about in the article?
A . Global temperatures will rise.
B . The Amazon rainforest is close to disappearing.
C . Animals in the Amazon rainforest are under threat.
D . It will take decades for the Amazon rainforest to recover.
（4）What are the last two paragraphs mainly about?
A . What the Brazilian government has done to fight fires.
B . Celebrities who care about rainforest preservation.
C . The possible future of the Amazon rainforest.
D . Efforts made to save the Amazon rainforest.
