It_is_no_longer_what_it_used_to_be_three_years_ago.

　　3．那时候仅有一个教学楼和一个操场。(there be句型)

　　There_was_only_one_teaching_building_and_a_playground_at_that_time.

　　4．其中之一是一座新教学楼。(主系表结构)

　　One_of_them_is_a_new_classroom_building.

　　5．在这座新教学楼中，有音乐教室、美术教室和计算机教室。(there be句型)

　　There_are_rooms_for_music,_art_and_computer_teaching_in_the_new_classroom_building.

　　6．另一个是图书馆，里面有各种各样的图书、报纸和杂志。(where引导的非限制性定语从句)

The_other_is_the_library,_where_there_are_all_kinds_of_books,_newspapers_and_magazines.

　　7．除此之外，我的学校体育设备和乐器配备齐全。(被动语态；be equipped with)

　　Besides,_my_school_is_well_equipped_with_sports_facilities_and_musical_instruments.

　　8．我认为我的学校会变得越来越好，我希望你再次访问我的学校。(宾语从句；并列句)

　　I_believe_my_school_will_become_better_and_better,_and_I_hope_you_will_visit_my_school_again.

　　第四步：句式升级造亮点

　　1．用as引导非限制性定语从句改写句1

　　As_is_known,_great_changes_have_taken_place_in_my_school.

　　2．用when引导的非限制性定语从句把句2和句3合并

　　It is no longer what it used to be three years ago, when there was only one teaching building and a playground.

　　3．用"in which"引导的定语从句把句4和句5合并

　　One_of_them_is_a_new_classroom_building,_in_which_there_are_rooms_for_music,_art_and_computer_teaching.

　　第五步：过渡衔接联成篇

　　Dear Joy，

　　I was pleased to hear from you and I'm writing to tell you something about the changes in my school.

As_is_known,_great_changes_have_taken_place_in_my_school._It_is_no_longer_what_it_used_to_be_three_years_ago,_when_there_was_only_one_teaching_building_and_a_playground._Now_two_new_buildings_have_been_built_and_are_in_use._One_of_them_is_a_new_classroom_building,_in_which_there_are_rooms_for_music,_art_and_computer_teaching._The_other_is_the_library,_where_there_are_all_kinds_of_books,_newspapers_and_maga