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题型:语法填空-短文语填 难度:0.65 引用次数:106 题号:12664662
Directions: After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.

Wildlife in Decline

The populations of Earth’s wild vertebrates (脊椎动物) have declined by 58% over the past four decades, according to the Living Planet Report 2016 published by the World Wildlife Fund.

Climate change and activities such as deforestation and poaching (偷猎) are in large part     1     (blame) for the decline. If the trend continues, by 2020, the world     2     (lose) two-thirds of its vertebrate biodiversity. “Sadly, there is no sign yet     3     this rate will decrease,” the report says.

“Across land, fresh water and the oceans, human activities are forcing wildlife populations to the edge,” says Marco Lambertini, director-general of WWF International.

The Living Planet Report is published every two years. It aims to provide an assessment of the state of the world’s wildlife. The 2016 study included 3700 different species of birds, fish, mammals, amphibians and reptiles around the world. The team collected data from more than 3000 sources, including government statistics and surveys     4     (carry) out by conservation groups. They then analyzed     5     the population sizes had changed over time.

Lambertini said some groups of animals had done worse than others. “We do see particularly strong declines     6     the freshwater environment. For freshwater species alone, the decline stands at 81% since 1970. This is related to the way water     7    (use) and taken out of freshwater systems, and also to the fragmentation (分裂) of freshwater systems through dam building, for example.”

The report also highlighted other species, such as African elephants,     8     have suffered huge declines in recent years, and sharks, which are threatened by overfishing.

    9       all the terrifying facts, however, some conservationists say there is still hope. “One of the things that I think is the most important is that these wild animals haven’t yet gone extinct,” said Robin Freeman, head of the Zoological Society of London. “On the whole,     10     are not dying out, and that means we still have opportunities to do something about the decline.”

【知识点】 动物

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