阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。
According to a study published in the
journal Nature Sustainability in February, China and India are{#blank#}1{#/blank#}(main) responsible for making the Earth
greener over the past two decades. Since 2000, the Earth's green leaf area{#blank#}2{#/blank#} (increase) by 5 percent, or over 5 million
square kilometers. That's{#blank#}3{#/blank#}area equal to the total area of the
Amazon rainforest. It is basically the result of many big tree-planting{#blank#}4{#/blank#}(project) in China and intensive
agriculture(集约农业)in
both countries.
China and India contribute{#blank#}5{#/blank#}one third of the increasing greening,
but contain only 9 percent of the planet's land area covered in vegetation(植被). China was the major contributor,{#blank#}6{#/blank#} (add) 25 percent to this increase, while India
added 6.8 percent.
Over the past few decades, China has
made great efforts to green the land. In 1978, China {#blank#}7{#/blank#}(begin) a national-level forestation
project-the Three North Shelterbelt Forest Program, also{#blank#}8{#/blank#}(know) as the “Great Green Wall”. The
program has seen many trees planted in northern China to act as windbreaks (防风林). By the end of 2017, the forest
coverage rate had reached 13.57 percent, compared to 5.05 percent 40 years ago.
In the light of China's{#blank#}9{#/blank#}(succeed) in greening the desert, the
UN believes the country is a good example for others{#blank#}10{#/blank#}(follow) and has lessons to share with
the world.