According to Science Daily, the Arctic, the only natural habitat for polar bears, is in danger. Sea ice in the area could disappear【小题1】(complete) by 2035. This is undoubtedly bad news for the animal, as they use the floating sea ice to hunt.

Scientist made this【小题2】(predict) by using the UK Met Office’s Hadley Center climate model. This model allowed researchers【小题3】(compare) Arctic sea ice conditions during the last interglacial period-the warm period that 【小题4】(occur) around 127, 000 years ago-to present day conditions. Researchers found during the last interglacial period many shallow pools of water formed on the surface of the Arctic sea ice. These pools 【小题5】(know) as melt ponds, played a crucial role in the melting of the sea ice. This is because if there are larger areas of melt ponds, more heat【小题6】(absorb) by sea ice, which causes it to melt further.

In the last interglacial period, the Arctic sea ice actually disappeared. This is a【小题7】(frighten) thought for scientists 【小题8】see the pattern repeating. “If what is happening to the Arctic right now is anything like the last interglacial period, there is 【小题9】chance that it could be virtually free of sea ice in only 15 years,” the researchers said.

In addition 【小题10】the potential extinction of some animal species, the melting of sea ice could cause devastating natural disasters.

People often wonder about the reasons behind the urban migration of animals. Most of us would assume that urban development and climate change are responsible for pushing the animals out of their 【小题1】 (nature) habitats. However true this is, 【小题2】 we also need to consider is that some of these so-called “urban animals” have never moved at all—it’s we humans who have moved into their territory. 【小题3】 they go, animals find towns and cities in their way. With nowhere else to make their homes, they have no choice but to move in with us.

I started volunteering when I 【小题1】 (be) 13 years old for the organization Cats in Need. This was a dream come true for me — not only because I had dreamed of 【小题2】 (become) a veterinarian ( 兽医), but also because I love cats.

Once a week, I would feed the cats, clean 【小题3】 (they) litter boxes and spend plenty of time socializing with them. Playing with the cats that would come and go was easily my favorite part. But 【小题4】 wasn’t always easy to say goodbye, even though seeing them get adopted by loving families was one of the most meaningful 【小题5】 (part) of the job.

This experience not only taught me the 【小题6】 (important) of responsibility, but it also reminded me how special it is to bond with (建立联系) an animal. My time with Cats in Need really taught me 【小题7】 (believe) that we should all treat animals with just as much respect 【小题8】 we’d treat any other human being. The relationships you create 【小题9】 them can be even 【小题10】 (powerful) than that of any person in your life.