It_has_many_well­known_animals_such_as_penguins,_whales_and_seals,_which_have_adapted_to_its_extreme_conditions.

　　第五步：过渡衔接联成篇

　　Antarctica

　　Antarctica,_which_is_the_coldest_continent_in_the_world,_lies_in_the_extreme_south_of_the_earth._Covering_an_area_of_about_14_million_square_kilometers,_it_is_covered_with_cold_thick_ice_and_deep_snow_all_year_long._However,_it_is_a_very_rich_continent._It_has_many_well­known_animals_such_as_penguins,_whales_and_seals,_which_have_adapted_to_its_extreme_conditions._What's_more,_it_is_rich_in_mineral_resources_including_iron,_coal_and_so_on._Up_to_now_only_some_visiting_scientists_live_there._Maybe_one_day_lots_of_households_will_live_there.