题目内容

【题目】东北是我国重要的水稻产区。据此完成下列问题。

1东北大米因质量优而广受市场欢迎,与其有关的因素是 (  )

①东北地区水稻生产机械化水平高 

②东北地区土壤肥沃,化肥使用量相对少

③东北地区气候寒冷,病虫害少 

④东北地区水稻的生长期长

A. ①③④ B. ①②④ C. ①②③ D. ②③④

2有关东北地区水稻种植的说法,正确的是 (  )

①水稻是东北产量最高的粮食作物 

②水稻种植比例由南向北逐渐增加 

③水稻种植已扩展到北纬50°以北的黑龙江沿岸 

④东北水稻种植业的发展方向是规模化、专业化、生态化

A. ①② B. ②③ C. ②④ D. ③④

【答案】

1D

2D

【解析】

1本题考查影响农业区位的因素。影响农业的区位因素主要有自然条件、社会经济条件和技术条件。自然条件包括气候、地形、土壤、水源等。社会经济因素包括市场、交通运输、政府政策、劳动力、土地价格等。东北水稻的生长期长,东北地区气候寒冷,病虫害少,东北地区土壤肥沃,化肥使用量相对少,所以大米质量好。②③④正确,所以本题选择D选项。水稻生产机械化水平高低与质量优无关,①错误。

2我国东北水稻种植已扩展到北纬50°以北的黑龙江沿岸,东北水稻种植业的发展方向是规模化、专业化、生态化。因此③④正确,所以本题选择D选项。

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【题目】根据短文内容的理解,选择正确答案。 Sometimes called Amazonia, the rainforest of the Amazon River basin is the largest in the world. It stretches (延伸) across more than half of Brazil and parts of seven other South American countries (and French Guiana). With a land area of 2.7 million square miles, the Amazon rainforest is almost two thirds the size of the US.
Rainforests are important to the health of the entire planet. Often called "the lungs of the planet", the Amazon rainforest, with its rich plant life, stores carbon dioxide while giving out the oxygen we need to survive.
At one time, rainforests covered 14 percent of Earth's surface. Deforestation has reduced that figure to 6 percent today. Much of the loss has been in the Amazon.
Fortunately, over the years, Brazil has also become a world leader in rainforest preservation. A law called the Forest Code, originally passed in 1965, requires the Amazon's farmers to protect 80 percent of their land from farming. And democratic governments beginning in the early 1990s began to enforce it seriously.
Efforts to save the Amazon increased under President Luiz Inacio Lula da Silva (2002—2011). Brazil set aside about 150 million acres of the rainforest, an area about the size of France, for protection. Deforestation fell by 74 percent between 2004 and 2009.
Other countries of the Amazon have also done their parts. This year, Peru created a forest reserve about the size of California's Yosemite National Park.
(1)What is the size of the Amazon rainforest?
A.About the size of France.
B.Nearly half the size of Brazil.
C.Over half the size of the US.
D.About the size of seven South American countries.
(2)How much of the rainforest has been lost due to deforestation according to Paragraph 3?
A.6%.
B.Approximately 8%.
C.14%.
D.More than 50%.
(3)Which country contributes most to the preservation of the Amazon rainforest?
A.Peru.
B.Brazil.
C.The US.
D.French Guiana.
(4)What does the author feel about the situation of the Amazon?
A.Optimistic.
B.Moved.
C.Worried.
D.Uncertain.

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