4. Like many students, Charles Darwin excelled only in subjects that intrigued him. Although his father was a physician, Darwin was uninterested in medicine and unable to stand the sight of surgery. He eventually obtained a degree in theology from Cambridge University, although theology too was of minor interest to him. What he really liked to do was to tramp over the hills, observing plants and animals, collecting new specimens, scrutinizing their structures, and categorizing them.
--Audersirk, Audersirk, and Byers, Life on Earth, 3rd ed., p.214
4.1 The author’s purpose is to .............................................
. 4.2. Choose the word that best expresses the writer’s tone.
a. complaining b. factual c. confident d. calm
5. What do you do with aluminum cans? Do you throw them in the trash, or do you recycle when you are finished with them? At the rate we are filling our landfills, we will not have anywhere else to put our trash. If you recycle, you will help the environment. The next time you throw away your Coke can, think about putting it in a recycling bin. Your effort will help save your community.
5.1 The author's purpose is to ........................................................
5.2 What is the author’s tone? ...............