Read the article and select the best answer. Article: Surveys of American teenagers find that about half of them do not get enough sleep on school nights. They get an average of 60 to 90 minutes less than experts say they need. Experts say teens are biologically programmed to go to sleep later and wake up later than other age groups. Yet many schools start classes as early as seven in the morning. As a result,many students go to class feeling like Danny,16 years old. He plays two sports,lacrosse and football. He is an active teen--except in the morning. DANNY:"Getting up in the morning is pretty terrible. I'm just very out of it and tired. And through first and second period I can hardly stay awake." Michael Breus,a clinical psychologist with a specialty in sleep disorders says:"These aren't a bunch of lazy kids--although,you know,teenagers can of course be lazy. These are children whose biological rhythms,more times than not,are off."Teens,he says,need to sleep eight to nine hours or even nine to ten hours a night. He says sleepy teens can experience a form of depression that could have big effects on their general well-being. It can affect not just their ability in the classroom but also on the sports field and on the road because any tired driver is dangerous,especially a teenager with a lack of experience. So what can schools do about sleepy students?The psychologist says one thing they can do is start classes later in the morning. Eric Peterson,head of St.George's School in the northeastern state of Rhode Island,says,"In the end,schools ought to do what's the right thing for their students,first and foremost."And he wanted to see if a 30-minute delay would make a difference. did. Question: According to Michael Breus, _ . Options: A: Teenagers are too lazy to get up early for school. B: Teenagers should change their biological rhythms. C: Lacking sleep can cause serious problems. D: Sleepy teenagers shouldn't drive to school.
C

Read the article and select the best answer. Article: With fifteen years Britain and other nations should be well on with the building of huge industrial complexes for the recycling of waste. The word "rubbish" could lose its meaning because everything which goes into the dumps would be made into something useful. Even the most dangerous and unpleasant wastes would provide energy if nothing else. The latest project is to take a city of around half a million inhabitants and discover exactly what raw materials go into it and what go out. The aim is to find out how much of these raw materials could be provided if a plant for recycling waste were built just outside the city. This plant would recycle not only metal such as steel, lead and copper, but also paper and rubber as well. Another new project is being set up to discover the best ways of sorting and separating the rubbish. When this project is complete, the rubbish will be processed like this: First, it will pass through sharp metal bars which will tear open the plastic bags in which rubbish is usually packed; then it will pass through a powerful fan to separate the lightest elements from the heavy solids; after that rollers will break up everything that can be broken. Finally, the rubbish will pass under magnets , which will remove the bits of iron and steel; the rubber and plastic will then be sorted out in the final stage. The first full-scale giant recycling plants are perhaps fifteen years away. Indeed, with the growing cost of transporting rubbish to more distant dumps, some big cities will be forced to build their own recycling plants before long. Question: What's the main reason for big cities to build their own recycling plants? Options: A: To get big profits from those plants. B: To find out how much of the raw materials could be provided C: To get raw materials locally. D: To deal with wastes in a better way.
D

Q: Read the article and select the best answer. Article: A little boy went to a farmer who had some puppies to sell and said, "I want to buy one of your puppies." Then reaching deep into his pocket, he pulled out a handful of change and held it up to the farmer. "I've got thirty-nine cents. Is that enough to take a look." "Sure," said the farmer. Then he called his dog, "Here, Dolly!" Out from the doghouse and down the ramp ran Dolly followed by four little balls of fur. The little boy pressed his face against the chain link fence. His eyes danced with delight. As the dogs made their way to the fence, the little boy noticed something else moving inside the doghouse. Slowly, another little ball appeared. This one was much smaller than the others. Down the ramp it slid . Then in a somewhat awkward manner the little pup began hobbling toward the others, doing its best to catch up... "I want that one," the little boy said, pointing to the slow dog. The farmer knelt down at the boy's side and said, "Son, you don't want that puppy. He will never be able to run and play with you like these other dogs will." With that the little boy stepped back from the fence, reached down, and began rolling up one leg of trousers. There was a steel brace running down both sides of his leg. It was joined to a specially made shoe. Looking back up at the farmer, he said, "You see, sir, I don't run very well myself, and he will need someone who understands." The world is full of people who need someone who understands. Question: How many puppies did the farmer have in all? Options: A: 3 B: 4 C: 5 D: 6
A: C

Q: Read the article and select the best answer. Article: Legends about the development of coffee are varied and interesting, involving chance occurrences, political tricks, and the pursuit of wealth and power. According to one story, a sheepherder named Kaldi, as he tended his sheep, noticed the effect of coffee beans. He noticed that the sheep became excited after eating the red "cherries" from a certain plant when they changed pastures . He tried it himself, and was soon as overactive as his sheep. Another story relates that a monk happened to discover that this fruit from the shiny green plant could help him stay awake. Another legend gives us the name for coffee, "mocha". Omar, an Arabian was thrown to the desert with his followers to die of starvation. In desperation, Omar had his friends boil and eat the fruit from an unknown plant. Not only did the soup save the group, but the residents of the nearest town, Mocha, took their survival as a religious sign. The plant and its beverage were named Mocha to honor this event. Coffee was introduced much later to countries beyond Arabia, whose inhabitants believed it to be a tasty thing and guarded its secret as if they were top secret military plans. The government forbade transportation of the plant out of the Moslem nations. The actual spread of coffee was started illegally. One Arab named Baba Budan smuggled beans to some mountains near Mysore, India, and started a farm there. Early in this century, some of those original plants were found still growing fruitfully in the region. Coffee today is grown and enjoyed worldwide, and is one of the few crops that small farmers in third-world countries can profitably export. Question: Which of the following involves political tricks? Options: A: Kaldi's story. B: The monk's story. C: Omar's story. D: Baba Budan's story.
A: D