C
A shocking news report has revealed that more than one in five species of maple(枫树) trees faces extinction, warning that 75% of the threatened species are “geographically restricted” in their native regions.
The trees are experiencing a vast decline in habitat, due to urban development, wood harvesting and agricultural expansion. Time is running out for the world's biodiversity. Every recent survey of plants and animals in the wild points to this. This is happening nearly everywhere rarer maples exist. And because of climate change, the narrow habitats that support species at the edges of dry places and at the tops of mountains are quickly disappearing.
The trees can be found in subtropical and tropical regions, as far south as Indonesia. The only species found in the UK, the field maple is not under threat. Not only are the trees a popular attractive feature in parks and public spaces, but they are a key part of the natural ecosystem in woodlands, as well as being an important wood crop in several countries. Although the sugar maple in North America, which produces maple juice, is not endangered, two of the closest relatives to the species are endangered.
The report notes that conserving at-risk species in their natural habitat is the best conservation tactic. But collections in botanical gardens and seed banks—called “ex situ collections” can act as insurance policies against extinction. There are currently 14 species of maple, including four that are critically endangered, which are absent from these types of collections.
One species in Mexico, the Acer binzayedii, is in “desperate need of conservation” despite only being discovered in 2017. “It is at risk from climate change in its cloud forest habitat and threatened by logging and forest fires while it is also absent from 'ex situ collections',” the report adds. The report recommends developing conservation plans, monitoring species currently not at risk to ensure populations are maintained, and adding those missing maple species to seed banks.
8. What is paragraph 2 mainly about?
A. Action to protect maple trees. B. The dangerous situation of maple trees.
C. Various maple trees' habitats in the world. D. The conditions for diversity in maple trees.
9. What do the field maple and the sugar maple have in common?
A. They cannot produce juice. B. They are found in America.
C. They are not at risk of extinction. D. They have two endangered relatives.
10. What does the underlined word “tactic” in paragraph 4 probably mean?
A. Topic. B. Approach. C. Result. D. Conclusion.
11. What's the main purpose of the report?
A. To offer a proposal. B. To recommend a product.
C. To introduce maple species. D. To warn people of disasters.
8~11 BCBA
C篇:本文是说明文。一份令人震惊的新报告揭露,超过五分之一的枫树正濒临灭绝。
8.B【解析】主旨大意题。根据该段首句可知,该段主要讲由于城市发展,伐木和农业扩张,枫树面临生长地正在急剧减少的危险处境。
9.C【解析】细节理解题。根据第三段第二句和最后一句可知,作为在英国发现的唯一种野枫树,它并没有受到威胁;生产枫汁的北美糖枫并没有濒临灭绝。两者共同之处是它们都没有灭绝的危险。
10.B【解析】词义猜测题。根据上下文可知,报告指出,在自然生长地保护濒危物种是最好的保护策略,但是在植物园和被称为“迁地收集”的种子库的物种收集可以作为防止物种灭绝的保险策略。故tactic意为“策略;方法”，与approach意思一致。
11.A【解析】推理判断题。根据最后一.段最后一句可知,该报告建议制定保护计划,监测目前没有危险的物
种以维持数量,并将那些消失的枫树物种添加到种子库中。故该报告的主要目的是提出建议。
A shocking news report has revealed that more than one in five species of maple(枫树) trees faces extinction, warning that 75% of the threatened species are “geographically restricted” in their native regions.
The trees are experiencing a vast decline in habitat, due to urban development, wood harvesting and agricultural expansion. Time is running out for the world's biodiversity. Every recent survey of plants and animals in the wild points to this. This is happening nearly everywhere rarer maples exist. And because of climate change, the narrow habitats that support species at the edges of dry places and at the tops of mountains are quickly disappearing.
The trees can be found in subtropical and tropical regions, as far south as Indonesia. The only species found in the UK, the field maple is not under threat. Not only are the trees a popular attractive feature in parks and public spaces, but they are a key part of the natural ecosystem in woodlands, as well as being an important wood crop in several countries. Although the sugar maple in North America, which produces maple juice, is not endangered, two of the closest relatives to the species are endangered.
The report notes that conserving at-risk species in their natural habitat is the best conservation tactic. But collections in botanical gardens and seed banks—called “ex situ collections” can act as insurance policies against extinction. There are currently 14 species of maple, including four that are critically endangered, which are absent from these types of collections.
One species in Mexico, the Acer binzayedii, is in “desperate need of conservation” despite only being discovered in 2017. “It is at risk from climate change in its cloud forest habitat and threatened by logging and forest fires while it is also absent from 'ex situ collections',” the report adds. The report recommends developing conservation plans, monitoring species currently not at risk to ensure populations are maintained, and adding those missing maple species to seed banks.
8. What is paragraph 2 mainly about?
A. Action to protect maple trees. B. The dangerous situation of maple trees.
C. Various maple trees' habitats in the world. D. The conditions for diversity in maple trees.
9. What do the field maple and the sugar maple have in common?
A. They cannot produce juice. B. They are found in America.
C. They are not at risk of extinction. D. They have two endangered relatives.
10. What does the underlined word “tactic” in paragraph 4 probably mean?
A. Topic. B. Approach. C. Result. D. Conclusion.
11. What's the main purpose of the report?
A. To offer a proposal. B. To recommend a product.
C. To introduce maple species. D. To warn people of disasters.
8~11 BCBA
C篇:本文是说明文。一份令人震惊的新报告揭露,超过五分之一的枫树正濒临灭绝。
8.B【解析】主旨大意题。根据该段首句可知,该段主要讲由于城市发展,伐木和农业扩张,枫树面临生长地正在急剧减少的危险处境。
9.C【解析】细节理解题。根据第三段第二句和最后一句可知,作为在英国发现的唯一种野枫树,它并没有受到威胁;生产枫汁的北美糖枫并没有濒临灭绝。两者共同之处是它们都没有灭绝的危险。
10.B【解析】词义猜测题。根据上下文可知,报告指出,在自然生长地保护濒危物种是最好的保护策略,但是在植物园和被称为“迁地收集”的种子库的物种收集可以作为防止物种灭绝的保险策略。故tactic意为“策略;方法”，与approach意思一致。
11.A【解析】推理判断题。根据最后一.段最后一句可知,该报告建议制定保护计划,监测目前没有危险的物
种以维持数量,并将那些消失的枫树物种添加到种子库中。故该报告的主要目的是提出建议。
