According to Rix,guidelines are followed when you’re about to set foot in Antarctica and tourists have to disinfect(消毒) their boots to make sure no alien species are introduced.

　　And once on land,there’s no eating or smoking.Rocks,bone fragments—nothing should be taken as a souvenir and nothing should be left behind.Tourists fortunate enough to visit the Antarctica must be aware that this is not their home and keep their fingers crossed that future generations will also be able to enjoy such breathtaking views.

　　(2015·兰州模拟)

　　1.According to the second paragraph,we can learn that . 

　　A.Antarctica has become the best place for people to travel

　　B.only scientists can be allowed to go to Antarctica

　　C.Antarctica is less affected by human activities

　　D.no animals can survive in Antarctica except penguins

　　2.Juliet Rix’s travel in Antarctica mentioned in the fourth paragraph indicates that . 

　　A.governments should take measures to stop tourists from going to Antarctica

　　B.whether tourists should go to Antarctica or not should be considered carefully

　　C.the animals’ habitat in Antarctica has been seriously affected by tourism

　　D.only journalists begin to pay attention to the environmental protection in Antarctica

　　3.What can we learn from the last paragraph?

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