Melbourne_is_the_capital_of_Victoria,_the_second_most_populous_and_largest_city._

　　5．与悉尼相比，墨尔本建城时间较晚。(主系表结构)

　　Melbourne_was_founded_later_compared_to_Sydney._

　　6．谈及悉尼，它是这个大洲中最古老、最大和人口最密集的城市。(主系表结构)

　　Speaking_of_Sydney,_it_is_the_oldest,_largest_and_most_populous_city_in_the_continent._

　　7．墨尔本是外国游客最喜欢的城市。(主系表结构)

　　Melbourne_is_the_favourite_of_foreign_tourists._

　　8．悉尼最受本地游客的欢迎。(主系表结构)

　　Sydney_is_the_preferred_city_of_local_tourists.

　　第四步：句式升级造亮点

　　1．用分词作状语把句2和句3合并成一个简单句

　　They_are_in_the_same_southeastern_position_of_Australia,_sharing_a_history_of_being_named_after_British_politicians.

　　2．把句4和句5合并成一个并列句

　　Melbourne_is_the_capital_of_Victoria,_the_second_most_populous_and_largest_city,_and_was_founded_later_compared_to_Sydney._

　　3．用while连接句7和句8

　　Melbourne_is_the_favourite_of_foreign_tourists,_while_Sydney_is_the_preferred_city_of_local_tourists.

　　第五步：过渡衔接联成篇

　　Melbourne_and_Sydney_both_have_a_long_history_and_share_many_characteristics._They_are_in_the_same_southeastern_position_of_Australia,_sharing_a_history_of_being_named_after_British_politicians.

　　Melbourne_is_the_capital_of_Victoria,_the_second_most_populous_and_largest_city,_and_was_founded_later_compared_to_Sydney._Speaking_of_Sydney,_it_is_the_oldest,_largest_and_most_populous_city_in_the_continent._In_addition,_it_is_the_capital_city_of_New_South_Wales._

　　Different_kinds_of_tourists_travel_to_each_city._Melbourne_is_the_favourite_of_foreign_tourists,_while_Sydney_is_the_preferred_city_of_local_tourists._Both_cities_are_also_different_in_their_tourist_attractions._Melbourne_is_known_for_its_artistic_attractions,_while_Sydney_is_famous_for_the_business_and_entertainment.