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I'm taking a test and have to guess the right answer to the question after the article. Article: We already know the fastest,least expensive way to slow down climate change:use less energy.With a little effort,and not much money,most of us could reduce our energy diets by 25 percent or more--doing the Earth a favor while also helping our wallets. Not long ago,my wife,PJ,and I tried a new diet--not to lose a little weight but to answer an annoying question about climate change.Scientists have reported recently that the world is heating up even faster than predicted only a few years ago,and that the consequences could be severe if we don't keep reducing emission of carbon dioxide(CO2)and other greenhouse gases that are trapping heat in our atmosphere. We decided to try an experiment.For one month we recorded our personal emission of CO2.We wanted to see how much we could cut back,so we went on a strict diet.The average US household produces about 150 pounds of CO2a day by doing common things like turning on air conditioning or driving cars.That's more than twice the European average and almost five times the global average,mostly because Americans drive more and have bigger houses.But how much should we try to reduce? For an answer,I checked with Tim Flannery,author of The Weather Makers:How Man Is Changing the Climate and What It Means for Life on Earth.In his book,he had challenged readers to make deep cuts in personal emission to keep the world from reaching extremely important _ ,such as the melting of the ice sheets in Greenland or West Antarctica."To stay below that point,we need to reduce CO2emission by 80 percent,"he said. Good advice,I thought.I'd opened our bedroom windows to let in the wind.We'd gotten so used to keeping our air-conditioning going around the clock.I'd almost forgotten the windows even opened.We should not let this happen again.It's time for us to change our habits if necessary. Question: According to the passage,Tim Flannery _ . Options: A: made deep cuts in his personal emission of CO 2 B: wrote a book about the climate changes C: succeeded in reducing CO 2emission by 80 percent D: was an author popular among readers
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B

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I'm taking a test and have to guess the right answer to the question after the article. Article: The Enigma of Beauty The search for beauty spans centuries and continents.Paintings of Egyptians dating back over 4,000 years show both men and women painting their nails and wearing makeup.In 18th-century France,wealthy noblemen wore large wigs of long,white hair to make themselves attractive.Today,people continue to devote a lot of time and money to their appearance. There is at least one good reason for the desire to be attractive: beauty is power.Studies suggest that good-looking people make more money,get called on more often in class,and are regarded as friendlier. But what exactly is beauty? It's difficult to describe it clearly,and yet we know it when we see it.And our awareness of it may start at a very early age.In one set of studies,six-month-old babies were shown a series of photographs.The faces on the pictures had been rated for attractiveness by a group of college students.In the studies,the babies spent more time looking at the attractive faces than the unattractive ones. The idea that even babies can judge appearance makes perfect sense to many researchers.In studies by psychologists,men consistently showed a preference for women with larger eyes,fuller lips,and a smaller nose and chin while women prefer men with large shoulders and a narrow waist.According to scientists,the mind unconsciously tells men and women that these traits--the full lips,clear skin,strong shoulders--equal health and genetic well-being. Not everyone thinks the same way,however."Our hardwiredness can be changed by all sorts of expectations--mostly cultural," says C.Loring Brace,an anthropologist at the University of Michigan.What is considered attractive in one culture might not be in another.Look at most Western fashion magazines: the women on the pages are thin.But is this "perfect" body type for women worldwide? Scientists' answer is no; what is considered beautiful is subjective and varies around the world.They found native peoples in southeast Peru preferred shapes regarded overweight in Western cultures. For... Question: People's ideas about beauty _ . Options: A: have existed since ancient times B: can be easily described C: have little influence on a person's success D: are based upon strict criteria
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A

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I'm taking a test and have to guess the right answer to the question after the article. Article: A Koala Isn't a Bear Koalas remind people of teddy bears.They have thick fur and large ears.Their broad, flat nose makes them look cute, similar to teddy bears.In fact koalas aren't cute.They have sharp teeth and very sharp claws! Koalas are marsupials.This means the mother carries her baby in a pocket while it develops, similar to a kangaroo.The baby koala lives in its mother's pocket for the first six months of its life. The name "koala" comes from a native Australian word that means "no drink". The koalas get almost all their water from the eucalyptus leaves they eat.That's where they get their food too.Koalas eat only eucalyptus leaves, and only the leaves of certain eucalyptus trees.The eucalyptus trees are where the koalas live.It's also where they sleep.Koalas sleep about nineteen hours a day! Why do they sleep so much? Some people think it's because they're lazy.But koalas aren't lazy.They sleep so much because there isn't much nutrition in eucalyptus leaves.Koalas store hardly any fat, so they must save their energy.One way to do this is to move slowly and sleep a lot. After a day of sleeping they like to move around and eat just after sunset.They live alone most of the time.Koalas are very protective of their trees.If a koala sees another koala eating in its favorite tree, it might tell the other koala to leave by "barking" at it.Koalas do "talk" to each other.Besides barks, the males make a deep grunting sound.The mothers and babies talk in soft clicking sounds.If they get scared they may scream like a baby. Question: If an adult koala screams like a baby, he may get _ . Options: A: worried B: scared C: hungry D: sleepy
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B