Two brightly colored butterflies have just flown by. They seems to be exactly alike, but actually one is a little larger than the other. The larger insect has a wingspread of up to four inches. The smaller one has a wingspread of less than three inches and also a black line on its back wings. At first sight, it is hard to tell them apart. Would you guess from this that they are different-sized butterflies of the same species? Or that they are different species of butterflies but close relatives belonging to the same family? If you said yes to either question, you would be wrong, for these look-alikes belong to quite different families. The larger insect is the monarch butterfly . As a baby insect, the monarch feeds on milkweed, which seems to give the monarch a disagreeable taste and smell. The bright coloring of the monarch acts as a warning sign to its enemy. Birds that eat butterflies soon recognize the monarch and quickly learn to leave it alone. The smaller insect is the viceroy , which feeds on the leaves of trees. Birds would find this insect tasty, but because it looks like the monarch, birds keep away from it. The viceroy's similarity to the monarch gives it some protection from its enemies and helps it survive. There are other pairs of look-alike butterflies, bees and moths. In each case, one either has a disagreeable taste or smell, or can give a painful sting . The larger is called the model. The insect that imitates this model for protection is called the mimic. The bright coloring of the monarch butterflies is used to _ . A) catch other butterflies B) warn small insects C) express their ideas D) scare away the enemy
D
(Question)
With his game-winning three-pointer at the buzzer, Jeremy Lin finished the New York Knicks' dramatic reversed victory to defeat the Toronto Rapters. The Knicks have won six games in a row, and Jeremy Lin has put up impressive numbers during the continuous period of competitions. Although the season is still _ , the Knicks have reversed course in just one week from the NBA's most disappointing team to a playoff contestant. Lin, not team's high-paid stars, has saved the Knicks season and likely coach D'Antoni's job. After nearly 15 years of disappointing, sometimes unsuccessful seasons, Madison Square Garden is alive again, and New York City can't stop talking about the Knicks. To put things into perspective , consider this: Just several years back, Knicks fans protested nightly outside of the Garden calling for the team's ownership to fire their resented coach Isiah Thomas. Now, Madison Square Garden Co. shares are at a record high, the Knicks' average household television rating is up 70 percent since Lin joined the starting lineup , and jersey sales are increasing very quickly. I watched the Knicks-Lakers game at a bar in Harlem, and have not felt that kind of energy from fans since the great playoff between the Knicks and Miami Heat in the late 1990s. Beyond the Knicks, Lin may be saving the NBA as well. Just a few months back, the NBA took a massive credibility hit during a multi-month lockout , where the owners did not allow the players to go back to play until they accept the new salary levels. As a consequence, the season did not even begin until Christmas Day. Over the past few years, LeBron James' (.) relatively long and unpleasant free-agent events, combined with poor play around the league, have angered fans and damaged the league's brand. Lin is leading a one-week NBA basketball revival. His legendary story has inspired Asian-Americans, increased NBA sales in China, and turned the basketball world upside down. Which one of the following statements is TRUE according to the passage? A) These Knicks' stars who were paid well saved the Knicks season B) The Knicks didn't satisfy its fans for nearly 15 years until this season C) The fans objected to dismissing Coach Isiah Thomas outside the Garden D) The owners and the players didn't agree on raising the TV ratings
(Answer)
B
A car that runs on coffee is unveiled(shown to the public for the first time)today but at between 25 and 50 times the cost of running a car on petrol, the invention won't please any motor industry accountants. Nicknamed the Car-puccino, it has been created using a 1988 Volkswagen Scirocco bought for PS400 and it was chosen because it looked like the time-traveling DeLorean in the movieBack To The Future.The car will be driven the 210 miles between Manchester and London powered only by roasted coffee granules .It has been built by a team from the BBC1 science programme Bang Goes The Theory and will go on display at the Big Bang science fair in Manchester to show how fuels other than traditional petrol can power vehicles. The team calculates the Car-puccino will do three miles per kilo of ground coffee -- about 56 cups of espressos per mile.The journey will use about 70 kilos of ground coffee which, at supermarket prices of between PS13 and PS26 a kilo depending on brand and quality, will cost between PS910 and PS1,820, or between 25 and 50 times the PS36 cost of petrol for the journey.In total, the trip will cost 11,760 espressos, and the team will have to take 'coffee breaks' roughly every 30 to 45 miles to pour in more granules.They will also have to stop about every 60 miles to clean out the 'coffee filters' to rid them of the soot and tar which is also generated by the process.So despite a top speed of 60mph, the many stops mean the going will be slow, with the journey taking around ten hours. Sadly, the inventors will still have to pay duty on their coffee fuel---even though tax collectors at Her Majesty's Revenue and Custom haven't yet worked out how much. Nick Watson, producer of Bang Goes The Theory, said, "Coffee, like wood or coal, has some carbon content so you can use it as a fuel.The coffee needs to be very dry and in granules to allow the air to move through the pile of coffee as it burns.The brand doesn't matter." He said the same technology could be used to power a car on other unusual... The Car-puccino has its disadvantages EXCEPT that _ . A) it makes a lot of noise B) it runs at a very high cost C) it has to stop to be refueled very often D) it's not good enough for long-distance journey
A