【文章內(nèi)容簡介】 do?A．They should not smoke, because smoking is dangerous to themB．They should not dance, because dancing would waste a lot of moneyC．They should not make friends, because making friends would take them absentD．They should not wear expensive clothes because they would waste a lot of money BIn February, the United States honors two great American presidents, Abraham Lincoln on February 12th, and George Washington on February 22nd. These two days are made into one legal holiday on the third Monday in February, called Presidents’ Day.Both presidents have been honored in different ways. George Washington is the only president to have a state named after him. The nation’ s capital, Washington ., also has his name. There are cities, towns, streets, schools, bridges, and parks named after both president Lincoln and president Washington. Both have famous memorials (紀(jì)念物，紀(jì)念館) in Washington . Their portraits (肖像) also appear on postage stamps, bills and coins. Washington’ s house in Mount Vernon and Lincoln’ s home in Spring Field, Illinois, have been made into museums.Cherry pie is a traditional food for Washington’ s Birthday because of a popular story about him. It is said that when he was a little boy, one day Washington cut down his father’ s favorite cherry tree. When asked by his father, he admitted his wrong doing and said, “I can not tell a lie.”61. On which day are the two presidents honored?A. The third day in February. B. The third Monday in February.C. The third Monday in January. D. The third Monday in March.62. When was George Washington born? A. On 22nd February. B. On February 22nd.C. On the third Monday in February. D. On February 12th.63. Why do Americans have Presidents’ Day on the third Monday in February?A. Because both of the presidents were born on that day.B. Because they were both made presidents on that day.C. Because people have made the birthdays of the two presidents into one legal holiday on that day.D. The two presidents left a will to honor them on that day.64. Why do Americans have many places named after the two famous presidents?A. They want to honor their beloved presidents.B. They want the names of the places easily remembered.C. They want other countries to know that they have two famous presidents.D. They just want to fort the presidents’ families.65. Why do Americans use cherry pie as their traditional food on that day?A. They want to learn something good from the presidents.B. Washington liked eating it before his death.C. Because Washington cut down his father’ s cherry tree.D. Because cherry pie is very good to eat.CEverybody hates rats．But in the earthquake capitals of the worldJapan，Los Angeles，Turkeyrats will soon be man39。s new best friends．What happens after an earthquake? We send in rescue dogs．Why? Because they can smell people．Dogs save lives．They help rescuers to find living people．But dogs are big hand they can39。t get into small spaces．So now a new research project is using a smaller animal to save lives：the rat．How does it work? First，the rat is trained to smell people．When this happens，the rat39。s brain gives a signal（信號）．This is sent to a small radio on its back，and then the rescuers follow the radio signals．When the rat39。s brain activity jumps，the rescuers know that someone is alive．The rat has smelled that person．Although there are already robots which can do this job，rats are better．Christian Linster at Cornell University—New York says，“Robots39。 noses don39。t work well when there are other smells around．Rats are good at that．” Rats can also see in the dark．They are cheaper and quicker to train than dogs，and unlike robots，they don39。t need electricity!The “rat project” is not finished，but Julie Ryan of International Rescue Corps in Scotland says，“It would be fantastic．A rat could get into spaces we couldn39。t get to and a rat would get out if it wasn39。t safe．” Perhaps for the first time in history，people will be happy to see a rat in a building（but only after an earthquake，of course）．66．In the world earthquake capitals，rats will bee man39。s best friends because they can _________．A．take the place of man39。s rescue jobsB．find the position of people alive who are trapped in buildingsC．serve as food for people alive who are trapped in buildingsD．get into small spaces67．From the third paragraph we know the rescuers can judge a person is alive by_________．A．the noise made b