题目内容

【题目】我国下列河流中属于季节性河流的是: ( )

A. 塔里木河B. 黑龙江C. 珠江D. 雅鲁藏布江

【答案】A

【解析】

根据与外流河相比,我国内流河的水文特征明显不同。这些河流多分布在西北内陆。这里降水稀少,气候干旱,河水主要来自高山冰雪融水;夏季,随着冰雪融化,内流河水量增多;夏季过后,河流水量逐渐减少,甚至断流.所以,内流河大部分属于季节性河流,进行分析解答。

塔里木河全长2 176千米,是我国最长的内流河。这条河流位于我国干旱地区,流经塔里木盆地北部。河流的水源主要来自北部天山和南部昆仑山的冰雪融水。河流经过之处,绿洲广布,农业发达,是新疆人民的“母亲河”。因中、下游河水渗漏蒸发,且由于引水灌溉,水量愈往下游愈小,甚至断流。所以,塔里木河属于季节性河流;结合题意。故选:A

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【题目】 In China, giant pandas are considered a national treasure. People make a great effort to protect them. Now, the blackandwhite bears that live in the wild are going to be given a big new “home”. China is creating a reserve for them. The reserve will cover an area of 27,134 square kilometers.

Around 1,864 pandas now live in the wild. Their main threat is the loss of habitat (栖息地). The new park will link up 67 existing panda reserves across Gansu, Shaanxi and Sichuan. Scientists hope the effort will help the pandas get together, find mates (配偶) and produce babies. And the park will not just protect the giant pandas. It will also help protect more than 8,000 endangered animals and plants in the area.

Chinese scientists have tried many ways to protect the giant pandas. They have also spent a lot of time researching how they breed(繁殖). Their main aim is to increase the number to 2,000 by 2025. Hou Rong is the director of the Chengdu Research Base for Giant Panda Breeding (成都大熊猫繁育研究基地). He said the new park would be a great place for all kinds of animals and plants to live in. “Many scientists and experts support the building of a national park,” he added.

David Wildt is an experienced biologist from the United States. He said China had done a good job on protecting pandas. Experience in the past had shown how much a national park could do for a country. “Now,_it's_time_to_see_if_the_same_method_will_work_in_China,” he added.

1完成句子 In China, people make ________________ to protect giant pandas.

2简略回答问题How many pandas are living in the wild now?

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3简略回答问题What's the main aim of Chinese scientists to protect the giant pandas?

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4找出并写下第三段的主题句________________________________________________________________________

5将文中画线句子译成汉语________________________________________________________________________

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