单选题The old lady with her two daughters ______ in a street corner.

单选题I was hungry, for I ______ nothing all day.[A] ate[B] had eaten[C] am eating[D] have eaten

单选题Why are subterranean buildings good for energy conservation?

单选题Having a trip abroad is certainly good for the old couple, but it remains ______ whether they will enjoy it.[A] to see[B] to be seen[C] seeing[D] seen

单选题It can be inferred from the last paragraph that ______.

单选题I felt very glad______he accepted my invitation.

单选题Psychologists take opposing views of how external rewards, from warm praise to cold cash, affect motivation and creativity. Behaviorists, who study the relation between actions and their consequences, argue that rewards can improve performance at work and school. Cognitive(认识派的)re searchers, who study various aspects of mental life, maintain that rewards often destroy creativity by encouraging dependence on approval and gifts from others. The latter view has gained many supporters,especially among educators. But the careful use of small monetary(金钱的)rewards sparks creativity in grade-school children, suggesting that properly presented inducements(刺激)indeed aid inventiveness, according to a study in the June Journal of Personality and Social Psychology. "If kids know they"re working for a reward and can focus on a relatively challenging task ,they show the most creativity , "says Robert Eisenhower of the University of Delaware in Newark. "But it"s easy to kill creativity by giving rewards for poor performance of or creating too much anticipation for rewards. " A teacher who continually draws attention to rewards or who hands out high grades for ordinary achievement ends up with uninspired students, Eisenhower holds. As an example of the latter point, he notes growing efforts at major universities to tighten grading standards and restore failing grades. In earlier grades, the use of so-called taken economies, in which students handle challenging problems and receive performance-based points toward valued rewards, shows promise in raising effort and creativity, the Delaware psychologist claims.

单选题--How is everything, Rose?

单选题From the story we know it took Dr. Johnson ______ to get to the hospital.

单选题WhatdoesJackwanttodo?A.Findajob.B.BorrowsomemoneyC.Seeaboss.

单选题According to the last two paragraphs, Lynn Carr is trying

单选题The boys and girls are walking along the street, ______a green coat.[A] each of them has[B] they each have[C] every wears[D] each wearing

单选题{{B}}D{{/B}} There are hundreds of TV channels in the United States. Americans get a lot of entertainment and information from TV. Most people probably watch it for entertainment only. For some people, however, TV is where they get the news of the day. But some new TV programs or shows put entertainment and news together. This new kind of program in the United States is called "infotainment", which means information (info-) and entertainment (-tainment). These kinds of programs use actors to act out news stories, making the news of the flay more interesting and exciting to people. The shows also use special effects. An example of infotainment is the show "America's Most Wanted". The producers of this pro- gram get stories from real cases that the police have dealt with. In most of these cases, the; police never found the person who committed the crime. Sometimes they caught the criminal, but he or she ran away again. The people who make "America' s Most Wanted" film it in the city where the crime happened. They use actors to play the parts of all the people in the case. At the end of the story, however, they always show "mug shots" of the real criminals, or police photographs.