Read the following article and select the best answer. Article: Nicaragua's Cerro Negro Volcano has erupted 23 times in the past 100 years,burying homes, crops and people in lava and ashes. But recently the black mountain has become a tourist draw, thanks to a newly invented extreme sport: volcano boarding. Thousands of thrill-seekers have climbed to the top of Cerro Negro, peered into its mouth, then zipped down its rough-and--rocky 41--degree slope on special boards. The volcano-boarding speed, set by an Israeli woman, is 54 mph. "Rushing down an active volcano is something that people expect." Said Anthony Alcalde, an expert volcano boarder. The sport was developed in the mid-2000s by Darryn Webb, an Australian who had climbed the nearby Cerro Negro but was looking for a faster way to get to the bottom. He tried sliding down on surfboards, snowboards, and even a refrgerrator door before inventing a sit-down board made of plywood. "At first, Darryn planned to use a snowboard," said Gemma Cope, a British woman who now runs Big Foot, which offers volcano boarding tours. "But he realized he couldn't cut an edge for there were little rocks everywhere. So he came up with the sitting-down option and realized he can go pretty fast. " Tourists,who are nearly all foreigners,pay $28 for the experience, which begins with a truck ride on dirt roads to Cerro Negr0.a 2,400-foot--high volcano that last erupted in l999.Visitors must carry their boards during the half-hour climb to the top. There,they go straight down the slope and sometimes they have to use their feet for brakes.Along the way.The board fills with rocks and dust,making boarders almost blind.Crashes are common."l wiped out twice and ripped my pants."said Melinda Vorisek, a tourist from Miami."But I'd do it again." Another tourist added:"It was sheer terror. I was eating dirt.But how many people can say they've bombed down a volcano?" Question: Who is the key person to develop the sport of volcano boarding? - Anthony Alcalde - Darryn Webb - Cerro Negro - Melinda Vorisek
Darryn Webb

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Read the following article and select the best answer. Article: Scientists in Israel have discovered a new way to test for water pollution by "listening" to what the plants growing in water have to say. By shining a laser beam on the tiny pieces of _ floating in the water,the researchers said they hear sound waves that tell them the type and amount of contamination in the water. "It is a red light,telling us that something is beginning to go wrong with the quality of water," said Zvy Dubinsky,an aquatic biologist at Israel's Bar Ilan University."Algae is the first thing to be affected by a change in water quality.""The secret," he said,"is to measure the rate of photosynthesis in the algae,meaning the plant's ability to transform light into energy." During photosynthesis,plants also release oxygen into the air. Dubinsky's technique is easy to perform because of the overabundance of algae in the planet's water.Most of the oxygen in the atmosphere comes from algae.A prototype tester that occupies about one square meter of a laboratory desktop,shoots a laser beam at water samples to stimulate photosynthesis in the algae.But not all of the laser's heat is used.Depending on the condition of the algae and the rate of photosynthesis,some of the heat is shot back into the water,creating sound waves,Dubinsky said.With a special underwater microphone,researchers are able to analyze the strength of the sound waves and determine the health of the algae and the condition of the surrounding water. "Algae suffering from lead poisoning,like waste discharged from battery and paint manufacturing plants,will produce a different sound than those suffering from lack of iron or exposure to other toxins," said researcher Yulia Pinchasov.She said that testing algae photosynthesis can determine water quality more accurately and easily than laborintensive methods now used like chemical and radioactive carbon testing. Question: What would be the best title for the passage? - Scientists Listen to Plants to Find Water Pollution - A Prototype Tester Is Used to Determine Water Pollution - The Importance of Photosynthesis of the Algae - The Problem of Chemical and Radioactive Carbon Testing
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Scientists Listen to Plants to Find Water Pollution

Ques: Read the following article and select the best answer. Article: Speaking and Reading In learning a foreign language, one should first pay attention to speaking. It is the groundwork of reading and writing. You'd better try your best to speak. Don't be afraid of making mistakes. While you are doing this, a good exercise is to write --keep a diary, write notes or letters and so on. Many mistakes in your speaking will be easily found when you write. Through correcting the mistakes, you can do better in learning a language. If you are slow in speaking, don't worry. One of the helpful ways is to improve your English by reading, either aloud or low to yourself. The important thing is to choose something interesting to read. It mustn't be too difficult for. When you are reading in this way, don't stop to look up the words if you can guess their meaning of if they are not important to the sentence. You can do that some other time. Question: When you write, you will _ . - learn how to speak - do better in your pronunciation - remember what you have said - easily find the mistakes in your speaking
Ans: easily find the mistakes in your speaking

Read the following article and select the best answer. Article: With just a few minutes left before school was to start, my six-year-old, Dustin, was crying. "I don't want to go," he said. Ever since he'd entered first grade, he had hated school. What's going on? If he hates school this much now, how bad will it be later on? Every kid sometimes complains about school. But five to ten percent of kids dislike it so much they don't want to attend. "If a child seems worried or anxious about school, pretends illness to stay home, or refuses to talk about things of the school day, you should be concerned," says a school psychologist, Michael Martin. Fortunately, you can usually solve the problem--sometimes very easily. In our case, my husband and I visited Dustin's class and noticed that the teacher, just out of college, called only on kids who sat right under her nose. Dustin, who often sat near the back, was ignored . We simply told him to move up front. He did, and he was happy again. Question: From the case in the passage we can conclude that _ . - a child hating school needn't be taken seriously - a small thing may lead a child to dislike going to school - parents have to get in touch with teachers - parents should know how teachers teach children
a small thing may lead a child to dislike going to school