*Question*
I'm taking a test and have to guess the right answer to the question after the article. Article: As temperatures go up, bison get smaller. Joseph Craine, research assistant professor in the Division of Biology at Kansas State University, examined how climate change during the next 50 years will affect grazing animals such as bison and cattle in the Great Plains. "Bison are one of our most important conservation animals and hold a unique role in grasslands in North America," Craine said.  "In addition to their cultural and ecological significance, they're economically important.  There are about half a million bison in the world." Craine analyzed a data set of 290,000 weights, ages and sexes collected from 22 bison herds throughout the U. S. The organizations kept annual records of each animal in the herd and matched the data with the climates of the sites. Based on differences in sizes of bison across herds, Craine found that during the next 50 years, future generations of bison will be smaller in size and weigh less. Climate is likely to reduce the nutritional quality of grasses, causing the animals to grow more slowly. "We know that temperatures are going to go up," Craine said.  "We also know that warmer grasslands have grasses with less protein , and we now know that warmer grasslands have smaller _ . It all lines up to suggest that climate change will cause grasses to have less protein and cause grazers to gain less weight in the future." Craine said the results of climate change in coming decades can already be seen by comparing bison in cooler, wetter places with those in warmer, drier places. For example, the average 7-year-old male bison in South Dakota weighed 1, 900 pounds, while an average 7- year-old male bison in Oklahoma -- a warmer place -- weighed 1, 300 pounds. "The difference in temperature between those two states is around 20 degrees Fahrenheit, which is about three times the projected increase in temperatures over the next 75 years," Craine said. "It is a clear indicator that long-term warming will affect bison and is something that will happen across the U.S. over the next 50-75 years." Question: What is the main reason for the bison to become smaller? Options: A: The deceasing amount of grass. B: The rising temperature. C: The rising number of bison. D: The loss of weight.
**Answer**
B

*Question*
I'm taking a test and have to guess the right answer to the question after the article. Article: Did you know that vegetables can grow in the climates they are not used to? Cool climate vegetables like asparagus   are now able to be grown in places as hot as Hawaii. In Hawaii, marine  engineers have been able to actually let you believe such vegetables that they are living in cooler climates. In that way they grow faster and taste better. What these engineers have been using is very simply cold sea water. How did they use it? They place pipes in the soil and cold water flowing through them cools the earth. This causes plant growth and enables gardeners in tropical climates   to grow crops from cooler climates. Also some of these pipes are exposed to the air and they make the air "wet" and thus water the gardens. What especially makes people happy about this process   is that nothing to the natural conditions is being used. Another new use for cold ocean water is to cool buildings. Engineers believe that for example the entire west coast of the prefix = st1 /United Statescould be air-conditioned using seawater. Question: It can be inferred from the passage that   _  . Options: A: sea water can act as an air-conditioner B: asparagus are only grown in hot places C: the writer wants to tell us something about scientific advance D: sea water has many advantages
**Answer**
C

*Question*
I'm taking a test and have to guess the right answer to the question after the article. Article: You put a great deal of effort into reaching the college of your choice. It' s time to get started. But what' s next? Beginning college can be an exciting but awkward time. Follow these tips to adjust to your new life rapidly and make the most of your college experience. * To save time and money, use the college' s bus system. Taking the bus to school is quick, easy and free in most college towns. You won' t have to locate or afford a place to park either. It' s also a good way to be environmentally aware. * Save pennies on books by waiting until class starts. You might not even need all of the recommended books. New textbooks cost an arm and a leg. Try buying used textbooks -- it' s a surefire way to save money and serves the purpose as well. * Do never look at college life as an endless series of parties and social activities. But there is a whole lot more to college if you're serious about graduating. Having a good college experience is all about balancing work and fun. * Be mindful of your diet. Make healthy food choices and watch what you eat. Avoid foods that are processed or high in sugar. The "freshman 15"is real. Many college students gain at least 15 pounds during their freshmen year. * While electives can be helpful when figuring out your major, you shouldn't  entirely rely on them. Clubs and other organizations exist around. Get involved. Make sure, though, that you still have time to study. Having too much on your plate can hurt your grades. Question: The "freshman 15"tells the fact that some freshmen   _  . Options: A: take relaxed attitudes to their diets B: have little regular physical exercise C: focus less on their academic work D: attend limited activities on campus
**Answer**
A

*Question*
I'm taking a test and have to guess the right answer to the question after the article. Article: For millions of people,the American dream of owning a home seems to be slipping out of reach.     "Maybe young couples can no longer afford to buy a ready-made house as their parents did,' says 40-year-old building instructor Pat Hennin."But they can still have a home.Like their pioneer ancestors,they can build it themselves,and at less than half the cost of a ready-made house."     The owner-builders came from every occupational group,although surprisingly few are professional building workers.Many take the plunge with little or no experience."l learned how to build my house from reading books,"says John Brown,who built a six-room home for$25,000 in High Falls,New Jersey."If you have patience and the carpentry skill to make a bookcase,you can build a house."An astonishing 50 percent of these owner builders hammer every nail.1ay every pipe,and wire every switch with their own hands.The rest contract for some parts of the task.But even those who just act as contractors and finish the insides of their homes can save from 30 percent to 45 percent of what a ready-made home would cost.     One survey revealed that 60 percent of owner-builders also design their homes.Many others buy commercial house plans for less than $100 or use plans available from the U.S. Department of Agriculture. Question: It can be inferred from the passage that many Americans find it difficult to   _  . Options: A: build a house B: find a ready-made house C: have a good job D: buy a house
**Answer**
