【文章內(nèi)容簡介】 e and plenty of soft, deep straw. After the pigs got accustomed to these new homes over a few weeks, the researchers picked 18 pigs from each type to train and test their judgment. ―To do this, we trained each pig that in one corner of a training room there would be a bowl with chocolate sweets —pigs love them — and at the opposite side of the room there would be a bowl containing coffee beans, which pigs find bittertasting,‖ a researcher said. Over a number of training trials, pigs learned to go to the bowl reliably when it was in the corner where they had figured out to expect chocolate sweets. On the contrary, they quickly learned to avoid the bowl when it was in the corner where they would expect to find the coffee beans. The researchers next placed an unfamiliar bowl in different locations, to see how the pigs would react. Some gaily dashed to the bowl no matter what, showing optimism that it would contain their favorite sweets. Others, however, behaved as though they expected it to contain coffee beans, displaying pessimism. The findings suggest that a onesizefitsall answer to animal welfare issues does not exist. Even if pigs are just equal to bacon or other meat for some people, there is still cause for concern. Studies have suggested that how an animal is treated during its lifetime can directly affect meat quality and taste. 28. What was the study trying to figure out? A. How to make pigs happier. . B. The similarities between humans and pigs. C. How living environment affected pigs’ mood. D. How pigs’ mood and personality affected their judgment. 29. What does the underlined word ―cushier‖ in Paragraph 2 mean? A. Simple. B. More fortable. C. Unpractical. D. Less free. 30. Which bowl can test whether a pig is optimistic or pessimistic? A. The bowl with chocolate sweets. B. The bowl containing coffee beans. C. The bowl full of both sweets and beans. D. The bowl unfamiliar to two types of pigs. 31. What do the findings of the new research imply? A. People should treat pigs equally. B. People’s health relies on meat quality. C. People should meet pigs’ various needs. D. People’s attitude toward pigs is totally wrong. D Elizabeth Freeman was born at about 1742 to African American parents who were slaves. At the age of six months she was acquired, along with her sister, by John Ashley, a wealthy Massachusetts slaveholders. She became known as ―Mumbet‖ or ―Mum Bett‖. For nearly 30 years Mumbet served the Ashley family. One day, Ashley’s wife tried to strike Mumbet’s sister with a spade. Mumbet protected her sister and took the blow instead. Furious, she left the house and refused to e back. When the Ashleys tried to make her return, Mumbet consulted a lawyer, Theodore Sedgewick. With his help, Mumbet sued for her freedom. While serving theAshleys, Mumbet had listened to many discussions of the new Massachusetts constitution. If the constitution said that all people were free and equal, then she thought it should apply to her. Eventually, Mumbet won her freedom — the first slave in Massachusetts to do so under the new constitution. Strangely enough, after the trial, the Ashleys asked Mumbet to e back and work for them as a paid employee. She declined and instead went to work for Segdewick. Mumbet died in 1829, but her legacy lived on in her many descendants. One of her greatgrandchildren was . Du Bois, one of the founders of the NAACP, and an important writer and spokesperson for African American civil rights. Mumbet’s tombstone still stands in the Massachusetts cemetery where she was buried. It reads, in part: ―She was born a slave and remained a slave and remained a slave for nearly thirty years. She could neither read nor write, yet in her own area she had no superior or equal.‖ 32. What can we know from the first three paragraphs? A. Mumbet was a slaveholder. B. She was hit by Ashley’s wife. C. Mumbet won her freedom after others. D. Mumbet ran away from the Ashleys because she wanted to be a lawyer. 33. In the second paragraph, the underlined word ―Furious‖ probably means _________. A. calm B. outstanding C. angry D. satisfied 34. From the passage, we can infer that __________. A. Mumbet affected her younger generation in a way B. Mumbet had only one grandchild — an important writer C. Mumbet left the house and refused to e back D. Mumbet founded the new Massachusetts constitution 35. What does the