Today almost everyone knows computers and the Internet. If I ask you "What is the most important in your life ?" maybe you will say "Computers and the Internet." The first computer was made in 1946. It was very big but it worked slowly . Today computers are getting smaller and smaller. But they work faster and faster. What can computers do? A writer has said, "people can't live without computers today." The Internet came a little later than computers. It is about twenty-five years later than computers. But now it can be found almost everywhere. We can use it to read books, write letters, do shopping, play games or make friends. Many students like the Internet very much. They often go into the Internet as soon as they are free. They make friends on the Internet and maybe they have never seen these friends. They don't know their real names, ages, and even sex . They are so interested in making the "unreal friends" that they can't put their hearts into study. Many of them can't catch up with others on many subjects because of that. We can use computers and the Internet to learn more about the world. But at the same time, we should remember that not all the things can be done by computers and the Internet. What does the writer think of the Internet? A) It is wonderful. B) It can make students study harder. C) It is not good for students. D) It is helpful, but we can't do everything on it.
D
(Question)
SALT LAKE CITY, March 1, 2010 --- Like silkworm moths , butterflies and spiders, caddisfly larvae spin silk, but they do so underwater instead of on dry land. Now, University of Utah researchers have discovered why the fly's silk is sticky when wet and how that may make it valuable as an adhesive tape during an operation. "Silk from caddisfly larvae may be useful some day as a medical adhesive for sticking wet tissues," says Russell Stewart, an associate professor of bioengineering and principal author of a new study of the fly silk's chemical and structural properties. "I picture it as sort of a wet Band-Aid, maybe used inside in operations --- like using a piece of tape to close a cut," he adds. "Gluing things together underwater is not easy. Have you ever tried to put a Band-Aid on in the shower? This insect has been doing this for 150 million to 200 million years." There are thousands of caddisfly species worldwide. Some species spend their larval stages developing underwater, and build an inch-long, tube-shaped case or shelter around themselves using sticky silk and grains of rock or sand. Other species use silk, small sticks and pieces of leaves. Each larva has a head and four legs that stick out from the tube.The larval case gets wider as the larva grows.A caddisfly larva eventually pupates as it develops into an adult fly and then hatches. Caddisflies now live around the world in waters ranging from fast streams to quiet low lying wet land. The caddisflies'adaptation to diverse habitats is largely due to the inventive use by their larva of underwater silk to build complex structures for protection and food gathering. Caddisflies fall into two groups. Some build their case and then drag it along with them underwater as they search for food. Some build a shelter glued to a rock,with a silk net to catch passing food. The passage is most probably a _ . A) science fiction novel B) science news report C) biography of researchers D) social affairs report
(Answer)
B
Ques: Who give us life,raise us and are our constant support and wellwishers?Our mothers.That's why millions of people across the world take Mother's Day as an opportunity to express thanks and send best wishes to their moms. However,the celebration of Mother's Day is not the recent thing that many believe it to be.It was the ancient Greeks who started the tradition by celebrating their annual spring festival in honor of Rhea,the mother of many gods and goddesses. Later,in the 1600s,Mothering Sunday came to be celebrated in England.On the fourth Sunday of Lent ,children brought flowers and special fruitcakes to show their respect for their mothers.It may be the root of the modern Mother's Day. Thanks to the great efforts of Julia Ward Howe and Anna Jarvis,Mother's Day became an official festival in the US.It is celebrated on the second Sunday in May.Later,many countries began to celebrate this day as Mother's Day. Today,Mother's Day is an international festival honoring mothers.It is celebrated all over the world in different ways.In Western countries,the most common way is to treat mothers with breakfast in bed.Kids often allow their mothers to sleep till late in the morning while they prepare her favorite breakfast with their fathers.Some also make handmade gifts or buy beautiful carnations .It is the day when you acknowledge your mothers contribution in your life and pay a tribute to her,often with flowers and gifts.It complements Father's Day,the celebration honoring fathers. Today,Mother's Day is a day celebrated on various days in many places around the world. The modern Mother's Day came from _ . A) Greece B) England C) America D) China
Ans: B
Music is really powerful. Without music, movies would lose some of their attraction. No one disagree with the powerful effect music has on individuals. Whether this effect is positive or negative, however, often depends on the type of music listened to. And researches have shown that certain types of music own the ability to relieve one's anxiety, improve brain development in children, uplift one's memory and help patients to recover...just to name a few. It should come as no surprise then, that researchers from the Tufts University have found that background music has the ability to directly affect one's eating habits as well. They counted the bites of food individuals took at meals while listening to different types of music. The diners "ate at an average rate of 3.9 bites per minute", with about a third of the diners requesting more food after clearing their plates. On the other hand, with "spirited tunes, "the diners "sped up to an average of 5.1 bites per minute! "Not surprising however, when "calming flute instrumental" were played, the eating speed of the diners slowed "to 3.2 bites per minute--and the bites became smaller". They didn't request second helpings and praised that the food tasted better. Studies have clearly stated that one safe way of losing weight includes eating slowly. Since it takes about 20 minutes for your stomach to tell the brain that it's full, eating slowly will help you to eat to satisfaction--without overdoing it. With this important piece of information then, it leads one to believe that with the use of calming background instrumental music, one can slow their food digestion, "retraining" both the stomach and the brain to take in less food which could lead to weight lost. Is there any truth to this theory? One will never know unless they try it themselves. Even if it doesn't work for you, at least you'll achieve a bit of relaxing and pleasant environment during your meal periods. A great meal with great music--who could ask for anything more? Music can help people lose weight by _ . A) burning their fat B) slowing their eating speed C) changing their attention D) making them bored with food
B