Rainfall．is the main__________of water supply in that area．

A．he doesn"t think we are really getting a cheaper deal B．he thinks we are manipulated to eat more fast food C．he thinks that the fast food restaurants shouldn"t earn so much D．he thinks the industry is deceiving the public about the real costs of supersizing

A. the agriculture revolution B. the invention of labor-saving machinery C. the development of scientific agriculture D. the farming machinery in America

A．what physical features the giraffe has B．how the giraffe's heart works C．how the giraffes heart pumps blood to its head D．how the giraffes can stand up to high blood pressure

A．why animals can learn B．why man is different from animals C．why animals cannot speak D．why man has a big brain

A．call on more women to work outside the home B．stress the necessity for women to work harder C．point out the problems faced by working women D．analyze the roles played by professional women

A．supporting a position B．refuting some arguments C．describing a case D．presenting a new perspective

A) teachers should do as little as possible in helping students learn to read B) teachers should encourage students to read as widely as possible C) reading ability is something acquired rather than taught D) reading is more complicated than generally believed

A．the present condition and the prospect of TV programs B．soaps' decline in viewers C．profits got by soaps through advertisements D．a brief introduction of soaps

A．parents should leave their children alone B．kids should have more activities at school C．it’s time to be more strict with our kids D．parents should always set a good example to their kids

A．why men and women use different words in their talks B．why men and women misunderstand each other in their talks C．how men and women achieve a balance in their daily life D．how men and women learn to help each other in their daily life

A．workaholics are usually successful people, but their lives are in a mess B．workaholism can lead to serious problems but it can also create a joyful life C．people who indulge in their work may enjoy movies, sports and other kinds of entertainment D．those who work even under difficult conditions may be very happy

A.the results of an opinion poll B.what constitute the．best formula for happiness C.the importance of wealth to happiness D.why some people are happy and some are riot

A．Ralph Waldo Emerson B．Henry David Thoreau C．Nathaniel Hawthorne D．Walt Whitman

A．explain why couples grow alike B．tell how couples like each other C．discuss the function of marriage D．describe the life of happily-married couples

A．the fact that it is not the safest way to invest in the stock market B．buying and selling shares in the stock market C．the ways to invest in the stock market D．where one can buy or sell the shares

A．Glass B．Minerals C．Clay D．Sandstone

A) how to make a wise buying decision B) ways to protect the interests of the consumer C) the positive and negative aspects of advertising D) the function of advertisements in promoting sales

A.why computer criminals are often able to escape punishment B.why computer crimes are difficult to detect by systematic inspections C.how computer criminals mange to get good recommendations from their former em-ployers D.why computer crimes can’t be eliminated

A．discuss how people view a new invention B．analyze how a new invention changes our lives C．show the necessity for a new invention D．introduce a new invention to the public

A．the China-US relations B．the Nixon Library C．President Nixon D．the Youth Summit

A．how to cross the street B．how to be safe in your everyday life C．how to use the public phones