Like distance runners on a measured course,all of us will move through time in a roughly predictable pattern. In the first stage of our lives,we develop and grow, reaching toward the top of physical vitality . After we grow up,however, the body begins a process of gradually wearing out. A new awareness of physical fitness may help lengthen our years of health and vitality,yet nothing we do will work to stop the unavoidable force of aging. Most of the changes of aging take place deep inside the body.The lungs become less able to take in oxygen.Powerful muscles gradually lose their strength.The heart loses power and pumps less blood.Bones grow easier to break. Finally, we meet a stress,a stress that is greater than our physical resistance.Often,it is only a minor accident or chance infection(a disease caused by virus),but this time, _ brings life to an end. In 1932,a classic experiment nearly doubled the lifetime of rats,simply by cutting back the calories in their diet The reason for the effect was then unknown. Today, at the University of California at Berkley, Dr.Paul Seagle has also greatly lengthened the normal lifetime of rats.The result was achieved through a special protein limited diet,which had a great effect on the chemistry of the brain.Seagle showed that within the brain,specific chemicals control many of the signals that influence aging.By changing that chemical balance,the clock of aging can be reset. For the first time, the mystery of why we age is being seriously challenged.Scientists in many fields are now making striking and far-reaching discoveries. An average lifetime lasts 75 years,yet in each of us lies a potential for a longer life.If we could keep the vitality and resistance to disease that we have at age twenty, we would live for 800 years. What is probably the best title for the article? A) Two Great Experiments B) The Mystery of Human Life C) The Breakthrough in the Study of Aging D) Ways to lengthen Human Life
C
(Question)
Gwendolyn Brooks wrote hundreds of poems during her lifetime. She was known around the world for using poetry to increase understanding of black culture in America. During the 1940's and the 1950's, Gwendolyn Brooks used her poems to describe conditions among the poor,racial inequality and drug use in the black community. She also wrote poems about the struggles of black women. But her skill was more than her ability to write about struggling black people. She combined traditional European poetry styles with the African American experience. Gwendolyn Brooks once said that she wrote about what she saw and heard in the street. She said she found most of her materials through looking out of the window of her second-floor apartment in Chicago, Illinois. In her early poetry, Gwendolyn Brooks wrote about the South Side of Chicago, where many black people live. In her poems, the South Side is called Bronzeville. It was "A Street in Bronzeville" that gained the attention of literary experts in 1945. Critics praised her poetic skills and her powerful descriptions about the black experience during the time. The Bronzeville poems were her first published collection. In 1950, Gwendolyn Brooks became the first African American to win the Pulitzer Prize for Literature. She won the prize for her second book of poems called "Annie Allen". "Annie Allen" is a collection of poetry about a Bronzeville girl as a daughter, a wife and a mother. She experiences loneliness, loss, death andpoverty . Gwendolyn Brooks said that winning the prize changed her life. Her next work was a novel written in 1953 called "Maud Martha". "Maud Martha" attracted little attention when it was first published. But now it is considered an important work by some critics. Its main ideas about the difficult lives of many women are popular among female writers today. We can infer that the book "Annie Allen" mainly deals with _ . A) family life B) inequality C) adventure D) failure
(Answer)
A
Ques:Mr. Eckerd at the end of the street was a different fellow with a different kind of house. He let kids from the neighborhood come to see his house, but only if they had written permission from their parents, and if he'd already spoken to the parents before. What made it so different? He shared his home with rescued animals that the county couldn't keep. He had the permission to have things like monkeys, large cats, and other strange creatures. His house had the ivy -covered brick wall and the iron gate across the driveway. Once you went inside, the hedges lining the driveway were carved into the shapes of animals. There were other pretty plants on the grounds, too. The old brick house held a lot of surprises. The double doors with the lion's head door knockers opened into a large flat entryway. In the wooden board walls all around, there were fish tanks with colorful fishes. The ceilings were painted with scenes of plants and rare animals. Room opened off from there. Continuing down the hall, you came to a large courtyard, which had been caged in, partly open to the sky .A large group of tiny monkeys shook up and down trees. You had to walk through a caged tunnel into other parts of the house. They called out to whoever walked in, hoping for treats of fruits, nuts, and seeds. Behind that, the hall continued to a room full of snakes and lizards. It felt like a desert in that room, so dry and hot. It was not everyone's favorite room, but it certainly was interesting. The final room was actually out back, and definitely not something to miss. It was much like a large glass bird cage or a greenhouse. It was there that you would usually find Mr Eckerd on a bench next to some carvings of jungle animals. He was watching the Bengal tiger that wandered back and forth inside the cage. Mr. Eckerd's house was the strangest and most unique place in town, a place very well worth seeing. What exhibit or animal room seemed to be the least popular for most people? A) The tiger. B) The monkeys. C) The birds. D) The snakes and lizards.

Ans:
D