Read the following article and select the best answer. Article: Put an ice cube from your fridge into a glass of water. You have a piece of string 10 centimeters long. The problem is to take out that piece of ice with the help of the string. But you must not touch the ice with your fingers. You may ask your friends to try to do that when you are having dinner together. There is a saltcellar on the table. You must use salt when you carry out this experiment. First you put the string across the piece of ice. Then put some salt on the ice. Salt makes ice melt . The ice round the string will begin to melt. But when it melts, it will lose heat. The cold ice cube will make the salt water freeze again. After a minute or two you may raise the piece of string and with it you will raise your piece of ice! This experiment can be very useful to you. If, for example, there is ice near the door of your house, you must use very much salt to melt all the ice. If you don't put enough salt, the water will freeze again. Question: We must use _ when we carry out this experiment. - fridge - some food - a table - some salt
some salt

Read the following article and select the best answer. Article: Why did the chicken cross the road? To get to the other side. Most people know this joke. But recently, some people have been much more worried about how the grizzly bear and mountain lion can cross the road. " Millions of animals die each year on the U. S. roads, " the Federal Highway Administration reports. In fact, only about 80 ocelots , an endangered wild cat, exist in the U. S. today. The main reason? Roadkill. "Eco-passages" may help animals cross the road without being hit by cars. They are paths both over and under roads. " These ecopassages can be extremely useful,so that wildlife can avoid road accidents ," said Jodi Hilty of the Wildlife Protection Society. But do animals actually use the eco-passages? The answer is yes. Paul Beier of Northern Arizona University found foot marks left by mountain lions on an eco-passage that went under a highway. This showed that the lions used the passage. Builders of eco-passages try to make them look like a natural part of an area by planting trees on and around them. Animals seem to be catching on. Animals as different as salamanders and grizzly bears are using the bridges and underpasses. The next time you visit a park or drive through an area with a lot of wildlife, look around. You might see an animal over-pass ! Question: This passage is written to _ . - protect the endangered animals - call on drivers to be careful when they see animals on the road - introduce a new way to help protect wild animals - tell us the main reason for the killing of animals in the U. S.
introduce a new way to help protect wild animals

Q: Read the following article and select the best answer. Article: The Gloria Barron Prize honors American young people from 8 to l8 who have shown leadership and courage in public service.Each year ten winners each receive$2,000 to support their higher education or their service work. Ellie Wen,18,was volunteering at a community center in Los Angeles.The center was set up to help immigrant families.She happened to meet adults in an EFL(English as a foreign language)class."When I saw them struggling hard,I wondered how people in poor countries could learn English,"Ellie said. So she started a Website,"Repeat After Us",where people can listen to English and practice their accents.Volunteers have helped Ellie record more than 6,600 texts,including Abraham Lincoln's"Gettysburg Address". Hard work pays off.There were so many times that Ellie was discouraged,but she stuck to it.The Website crashed early on,and all the recordings were lost.But volunteers worked together vigorously to start over,and the visitors returned to the site. "Just follow your idea and know that the world is so kind.Even if you do have trouble,people will help you,"Ellie said. "I was really excited the first month,when we had 49 visitors,"she said.Now,more than 480,000 people from a11 over the world have visited the site."I get e-mails from China,Egypt,India,and Brazil."They say,"Thank you so much for this resource,we've been waiting for it for so long!"Ellie loves knowing she is helping so many people. Gloria Barron Prize winners like Ellie are enthusiastic about the work they do.And they encourage others to join in if they see a need.Anybody can be negative,but it needs somebody brave to be positive.Are you the brave one? Question: The writer mainly talks about _ . - how to open up a website with the help of others - how to teach immigrant families English via the Internet - the Gloria Barron Prize and the story of one of its winners - young people who help others in various ways
A: the Gloria Barron Prize and the story of one of its winners

Read the following article and select the best answer. Article: It was Molly's job to hand her father his brown paper lunch bag each morning before he headed off to work. One morning, in addition to his usual lunch bag, Molly handed him a second paper bag. This one was worn and held together with staples . "Why two bags?" her father asked. "The other is something else," Molly answered. "What's in it?" "Just some stuff. Take it with you." Not wanting to discuss the matter, he put both bags into his briefcase, kissed Molly and rushed off. At midday he opened Molly's bag and took out the contents: two hair ribbons , three small stones, a plastic dinosaur, a tiny sea shell, a small doll, and 13 pennies... The busy father smiled, finished eating, and swept the desk clean into the wastebasket, Molly's stuff included. That evening, Molly ran up behind him as he read the paper. "Where's my bag?" "What bag?" "The one I gave you this morning." "I left it at the office. Why?" "I forgot to put this note in it," she said. "And, besides, Daddy, the things in the sack are the things I really like -- I thought you might like to play with them. You didn't lose the bag, did you, Daddy?" "Oh, no," he said, lying. "I just forgot to bring it home. I'll bring it tomorrow." While Molly hugged her father's neck, he unfolded the note that read: "I love you, Daddy." Molly had given him her treasures -- all that a 7-year-old held dear. Love in a paper bag, and he missed it -- not only missed it, but had thrown it in the wastebasket. So back he went to the office. Just ahead of the night janitor , he picked up the wastebasket. He put the treasures inside and carried it home carefully. The bag didn't look so good, but the stuff was all there and that's what counted. After dinner, he asked Molly to tell him about the stuff in the sack. It took a long time to tell. Everything had a story or a memory. "Sometimes I think of all the great times in this sweet life," he thought. We should all remember that it's not the destination that counts in life, but the journey. That journey with the people we love... Question: Which of the following is the most suitable title of the passage? - An important journey - Two bags - Father and daughter - Love in a paper bag
Love in a paper bag