We often use the Present Perfect to talk about change that has happened over a period of time. You have already chosen something that has changed over time (a city or place, some type of technology, the food industry, the environment, global issues, schools, families, sports, etc). Through writing and images posted on your blog, you are going to write about how that thing used to be and how it has changed today.
Picture 1 : taken from http://menorcaimatgesdenprimer.blogspot.com.es/2013_04_01_archive.html
a. Paragraph 1–Introduction: introduce your topic, why have you chosen it?
b. Paragraph 2–Past tense: how it used to be.
c. Paragraph 3—Present perfect: how it has changed today.
You will need an image to accompany paragraphs 2, and 3 to show the changes.
Picture 2: taken from http://www.panoramio.com/photo/43445180
(*)”The Times They Are a-Changin’” is a song written by Bob Dylan and released as the title track of his 1964 album, The Times They Are a-Changin’. Dylan wrote the song as an attempt to create an anthem of change for the time.
