段落写作练习段落展开第三讲

　　The following topic sentences are only examples. Your sentences may be different.

　　1. This is a strong topic sentence.

　　2. This is a weak topic sentence because the rest of the paragraph

　　describes what the writer does when he or she goes to the beach. A better topic sentence would be: Whenever I have the opportunity to go to the beach, I always follow the same routine.

　　3. This is a weak topic sentence because the rest of the paragraph describes the various ways students can get to class. A better topic sentence would be: For the many students who cannot afford a car, there are several alternative ways of getting to class.