Passage 10（2019 •四川省成都市）
Global warming is a big problem that we have to stop. One of the best things we do is to plant more trees. Trees can take in CO2 in the air and stop global warming. 1．_______________
A team of scientists at Boston University has been working with NASA to study Earth’s green vegetation (植被). They used a special NASA camera and found that global leaf area had increased by 5 percent since the early 2000s. 2． _______________That’s about one-quarter of the size of the entire Amazon rainforest.
The growth mainly came from China’s forest protection programs, NASA said. For example, since 1962, China has been planting trees in Saihanba, Hebei Province. It was once a desert. 3．_______________ Ant Forest, a feature in Alipay app, gives users points for doing eco-friendly things such as walking and going paperless in the office. Users can then use these points to water and grow their own virtual (虚拟的) trees. When the virtual trees are big enough, Ant Forest will plant real trees somewhere in the world. 4．_______________
A．More than 55 million trees have been planted in this way.
B．The Chinese public has also joined in these activities recently.
C．And China was responsible for 25% of that gain, according to the study.
D．However, people there can produce vegetables without any difficulty now.
E. But now, China has turned the area into the country’s largest man-made forest.
F. According to a news report, China is doing a great job of “greening” the world.
【答案与解析】
【文章大意】本文是一篇新闻报道，介绍了中国政府为阻止全球变暖一直在努力植树造林，并以蚂蚁森林为例说明了中国公众在植树造林发明所做的努力。
1．F  根据短文内容，可知本文是一篇新闻报道，介绍的是中国为阻止全球变暖一直在努力植树造林，备选句子According to a news report, China is doing a great job of “greening” the world.符合句意，故选F。
2．C  根据上文A team of scientists at Boston University has been working with NASA to study Earth’s green vegetation.，可知And China was responsible for 25% of that gain, according to the study.介绍研究结果，符合文意，故选C。
3．E   once曾经，根据上文It was once a desert.它曾经是一片沙漠，可知下文讲现在的情况，备选句子But now, China has turned the area into the country’s largest man-made forest.符合句意，故选E。
4．A  根据上文Users can then use these points to water and grow their own virtual trees. When the virtual trees are big enough, Ant Forest will plant real trees somewhere in the world. 蚂蚁森林用户先用点数浇水种植自己的虚拟树，当虚拟树足够大时，蚂蚁森林就会在世界的某个地方种植真正的树；可知真正的树木数量应该在不断增长，备选句子More than 55 million trees have been planted in this way.符合句意，故选A。