The size and location of the world's deserts are always changing. Over millions of years, as climates change and mountains rise, new dry and wet areas appear. But within the last hundred years deserts have been increasing after frightful speed. This is partly because of natural changes, but most responsible for creating deserts are men.     Man can make deserts, but they can also prevent them from getting bigger. Algeria is planning a green belt of trees along the edge of the Sahara Desert to stop the sand. In China, too,  _ are being built in the northwest to keep the desert from growing.     But desert still threaten the world. Experts believe that land that is on the way to becoming deserts equals the size of Australia, Russia and US put together. Can we stop the spread of the world's deserts and save the land that is so essential to mankind? Yes, we can, and we must. The reason for the land that turns into deserts is mostly because of   _ A) the changing of the climate B) man C) the natural changes D) the wind
B


Lying in the sun on a rock , the cougar saw Jeb and his son Tom before they saw it . Jeb put his bag down quickly and pulled his jacket open with both hands , making himself look big to the cougar . It worked . The cougar hesitated , ready to attack Jeb , but ready to forget the whole thing , too . Jeb let go of his jacket , grasped Tom and held him across his body , making a cross . Now the cougar's enemy looked even bigger , and it rose up , ready to move away , but unfortunately Tom got scared and struggled free of Jeb . " Tom , no ! " shouted his father . But Tom broke and ran and that's the last thing you do with a cougar . The second Tom broke free , Jeb threw himself on the cougar , just as it jumped from the rock . They hit each other in mid-air and both fell . The cougar was on Jeb in a flash , leaving Tom alone , which was what Jeb wanted . Cougars are not as big as most people think and a determined man stands a chance , even with just his fists . As the cougar's claws got into his left shoulder , Jeb swung his fist at its eyes and hit hard . The animal howled and put its head back . Jeb followed up with his other fist . Then out of the corner of his eye , Jeb saw Tom . The boy was running back to help his father . " knife , Tom , " shouted Jeb . The boy ran to his father's bag , while Jeb started shouting as well as hitting , to keep the cougar's attention away from Tom . Tom got the knife and ran over to Jeb . The cougar was moving its head in and out , trying to find a way through the wall Jeb was making out of his arms . Tom swung with the knife , into the cougar's back . It howled horribly and ran off into the mountains . The whole fight had taken about thirty seconds . Why did Jeb pull his jacket open when he saw the cougar ? A) To get ready to fight . B) To protect his son . C) To calm himself down . D) To frighten it away .
D


Q: It pays to be smart. We are not all smart in the same way. Youmaybe a talented musician, but you might not be a good reader . Each of us is different . Psychologists have two different views on intelligence .Others believe there are many different intelligence .Some psychologists say there is one type of intelligence that can be measured with IQ tests .These psychologistssupport their view with research that concludes that people who dowell on one kind of test for mental ability do well on other tests .They do well on tests using words , numbers or pictures. They do well on individual orgroup tests , and written or oral tests .Those who do poorly on one test , do the same on all tests . Studies of the brain show that there is a biological basis for general intelligence . The brain waves of people with higher intelligence show a quicker reaction .Some researchers conclude that differences in intelligence resultfrom differences in the speed and effectiveness of information processing by the brain . Howard Gardner , a psychologist at the Harvard School of Education , has four children .He believes that all children are different and shouldn't be tested by one intelligence test .Although Gardner believes general intelligence exists , he doesn't think it tells much about the talents of a person outside of formal schooling .He think that the human mind has different intelligences .These intelligences allow us to solve the kinds ofproblems we are presented with in life .Each of us has different abilities within these intelligences .Gardner believes that the purpose of school should be to encourage development of all of our intelligences . Gardnerbelieves that   _   . A) all children are alike . B) children should take one intelligence test . C) there is no general intelligence . D) children have different intelligences .
A: C


You get all sorts of demands, and the mark of a good hotel is to supply whatever is asked for without sounding surprised. If a guest asks for rubbers gloves, you don't ask why. You say, "No problem. What color1 do you want?"   There have been some demands which, much as I would have liked to fill, I couldn't. A Japanese businessman, for example, thought the manager of a hotel was like his girlfriend so he asked me to marry him to the woman he loved. There was one time, however,  _ . A young man thought that if he asked his girlfriend to marry him at the Ritz she would say yes. He asked us to put the ring in a cake, and she accepted.    Top hotels are used more and more to impress. They are used for doing business. If you've got something to sell, take your clients  to the best hotel where the surroundings are quite helpful. A friend of mine working at Savoy Hotel tells the story about a man who gave him 5 pounds to say "Good morning, Mr. Smith saying, "I do wish they would leave me alone at this place."   According to Julian Payne, the most powerful people in any hotel are the porters, who carry bags for hotel guests. "Porters can do almost anything. They can get you tables at the best restaurants or tickets for a popular concert. Don't ask me how they do it or what their deal is because I don't know. Most of them have been there for years. They know more about the history of the hotel and the guests than anyone else. They are invaluable. A head porter will come in even on his day off so he can say hello to someone he remembers visiting the hotel years ago." When guests ask for something strange, the manager of a good hotel would think   _  . A) how he can meet their needs B) why they have such demands C) what problems the hotels has D) who is the best person to go to

A