Work together to write topic sentences. EXAMPLE : Topic: advantages of growing up in a big city Controlling idea: several advantages Topic sentence: There are several advantages to growing up in a big city. 1. Topic : exercise Controlling ideas: benefits us in several important ways Topic Sentence:_____________________________________ 2. Topic: coming to college Controlling idea: several reasons Topic Sentence:____________________________________ 3. Topic: avoiding an embarrassing situation Controlling idea: take certain steps Topic Sentence:__________________________________ 4. Topic: avoiding sleep problem Controlling idea: follow a few simple guidelines Topic Sentence:_____________________________________ 5. Topic :my hometown ,Hangzhou Controlling idea: famous for its West Lake Topic Sentence:_______________________________________ 6. Topic: Beijing Controlling idea :a wonderful place to visit for several reasons Topic Sentence:_____________________________________