The author of this passage possibly is a______.

A . A. To give practical instruction for pruning a tree. B . B. To give a general description of pruning. C . C. To explain how trees develop diseases. D . D. To discuss different methods of pruning.

A．To change the behavior. or the thinking of its readers towards body-image. B．To convince people that it is harmful to be obsessed with superficial beauty. C．To persuade people to pursue more valuable things. D．To analyze why people pay so much attention to physical appearance.

A．You should not learn grammar only. B．You should ignore the rules of pronunciation. C．You should learn a language by making mistakes. D．You should learn a language at school.

A．fully confident B．highly positive C．fully suspicious D．emotionally discriminative

A) to stress the impact of the computer on society B) to explain the concept of the computer literacy C) to illustrate the requirements for being competent citizens of tomorrow D) to emphasize that computer programming is an interesting and challenging job

A．To tell readers that horse appeared earlier than human being. B．To inform. us that horses can help us a lot. C．To introduce the history and characteristics of horses. D．To introduce the primitive horses to modern man.

A．sympathetic B．doubtful C．critical D．objective

A．a historian B．a doctor C．a nutritionist D．an environmentalist

A．explain why people have emotions B．show how people avoid the negative emotions C．explain what people should do before emotions D．define anti classify people's emotions

A．describe different types of medicine B．argue for the importance of medicine in health care C．show the crucial role religion plays in medical treatment D．compare the educational background of three different types of patients

A．to stress the impact of the computer on society B．to explain the concept of computer literacy C．to illustrate the requirements for being competent citizens of tomorrow D．to emphasize that computer programming is an interesting and challenging job 此题为多项选择题。

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A．compare the consequences of the earthquakes that occurred in the U. S. B．outline the history of the development of quake- resistant building materials C．report new developments in constructing quake - resistant buildings D．encourage civil engineers to make more extensive use of computers

A．point out the role the workaholic plays in the American economy. B．defend people who are addicted to work. C．encourage us not to worry about our imperfection. D．consider the difficulties that confront us at middle-age.

A．the interpretation of the term "environment" B．the discussion on organisms and biological environment C．the comparison between internal and external factors influencing man D．the evaluation of man's influence on culture

A．To advise America to learn from its mistakes. B．To tell the readers how to look at WikiLeaks. C．To discuss how to deal with WikiLeaks. D．To show readers how to stick to their rules.

A．warn people not to celebrate Halloween any more B．criticize the Halloween celebration activities C．tell people to be careful in deciding whether to celebrate Halloween D．promote the tradition of Halloween and its celebrations

A．How to avoid car crash. B．How to educate children properly. C．How to design safer baby equipment. D．How to properly secure children in the car.

A．To remind people of the need of sustainable development. B．To suggest ways of ensuring sustainable food production. C．To advance new criteria for measuring farming progress. D．To urge people to rethink what sustainable agriculture is.

A．To show the inability of trains to compete with planes with respect to speed and convenience. B．To stress the influence of the automobile on America' s standard of convenience. C．To emphasize the function of travel agencies in market promotion. D．To illustrate the important role of persuasive communication in changing consumer attitudes.

A．Depressed. B．Optimistic. C．Opposing. D．Negative.

A．To tell people what a healthy diet actually is B．To prove people's diets are increasingly unhealthy C．To encourage people to cut down on processed food D．To introduce some experts on the research team

A．staying healthy is impossible without accumulating much wealth B．being physically healthy can eventually contribute to your wealth C．feeling good about your finance is also of health benefit D．a large fortune will increase the chance of deterioration of health

A．tell us his own experience in life B．tell us how to find peace of mind C．tell us a happy trip he took with his children D．ask us to see things from both sides