D．The average family in America makes proper use of water.

　　7．The last paragraph is intended to ________．

　　 A．show us how to fix leaks at home

　　 B．tell us how to run a dishwasher

　　 C．prove what drinking glass is best for us

　　 D．suggest what we do to save water at home

　　8．The text is mainly about ________．

　　 A．why paving roads reduces our water

　　 B．how much we depend on water to live

　　 C．why droughts occur more in dry climates

　　 D．how human activity affects our water supply

　　C

　　Pearl Buck(1892 - 1973)was born in Hillsboro, West Virginia. She grew up in China, but was educated at Randolph­Macon Woman's College. After her graduation she returned to China and lived there until 1934 with the exception of a year spent at Cornell University, where she took an MA in 1926. Pearl Buck began to write in the twenties; her first novel, East Wind; West Wind, appeared in 1930.It was followed by The Good Earth (1931), Sons (1932), and A House Divided (1935), together forming a trilogy (三部曲) on the stories of the family of Wang. The Good Earth stood on the American list of bestsellers for a long time and earned her several awards, including the Pulitzer Prize and the William Dean Howells Medal. She also published The First Wife and Other Stories(1933), All Men are Brothers(1933)，The Mother (1934), and This Proud Heart (1938)．The biographies (传记) of her mother and father, The Exile and Fighting Angel, were published in 1936 and later brought out together under the title of The Spirit and the Flesh(1944)．

　　Pearl Buck's works after 1938 are too many to speak about. Her novels have continued to deal with the differences between East and West. Her interest has spread to such countries as India and Korea.

　　Pearl Buck was active in many charity (慈善) organizations; in particular she set up an organization for the adoption of Asian­American children and took an active interest in children with low IQ.

　　9．What is the correct time order of the following events?

　　a．Pearl Buck took an MA at Cornell University.

　　b．Pearl Buck published The First Wife and Other Stories.

　　c．Pearl Buck's first novel, East Wind; West Wind appeared.

　　d．Pearl Buck published the biographies of her mother and father.

　　A．a，b，c，d　　　　　　　B．a，d，c，b

　　C．a，c，b，d D．a，d，b，c

10．We can learn from the passage that________．