Ⅰ.阅读理解(建议用时16′)
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[2016·昆明调研]Mei Xiang, a female panda of 17 years old, gave birth to twins on August 22, 2015, bringing a happy end to an anxious wait that had begun in April. The birth of two pandas has increased the excitement at Washington's National Zoo, but keeping them both alive will be tricky.
Now that Mei Xiang has surprised the world with twin babies, zoo staff are working round the clock to help them through the first fragile weeks of life. Unable to crawl (爬) or see for about two months, the baby depends on the mother's warmth, milk and protection. Even so, misfortunes can happen. Mei's second baby, a female, was born in September 2012, but died a week later due to lung damage. Poorly developed lungs likely prevented it from getting enough oxygen.
