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Read the article and select the best answer. Article: Scientists have devised a way to determine roughly where a person has lived using a strand ( ) of hair, a technique that could help track the movements of criminal suspects or unidentified murder victims. The method relies on measuring how chemical variations in drinking water show up in people's hair. "You're what you eat and drink, and that's recorded in your hair," said Thure Cerling, a geologist at the University of Utah. While U.S. diet is ly identical, water supplies vary. The differences result from weather patterns. The chemical composition of rainfall changes slightly as rain clouds move. Most hydrogen and oxygen atoms in water are stable, but traces of both elements are also present as heavier isotopes ( ). The heaviest rain falls first. As a result, storms that form over the Pacific deliver heavier water to California than to Utah. Similar patterns exist throughout the U.S. By measuring the proportion of heavier hydrogen and oxygen isotopes along a strand of hair, scientists can construct a geographic timeline. Each inch of hair corresponds to about two months. Cerling's team collected tap water samples from 600 cities and constructed a map of the regional difference. They checked the accuracy of the map by testing 200 hair samples collected from 65 barber shops. They were able to accurately place the hair samples in broad region roughly corresponding to the movement of rain systems. "It's not good for pinpointing ( )," Cerling said. "It's good for eliminating many possibilities." Todd Park, a local detective, said the method has helped him learn more about an unidentified woman whose skeleton was found near Great Salt Lake. The woman was 5 feet tall. Police recovered 26 bones, a T-shirt and several strands of hair. When Park heard about the research, he gave the hair samples to the researches. Chemical testing showed that over the two years before her death, she moved about every two months. She stayed in the Northwest, although the test could not be more specific than... Question: What is said about the rainfall in America's West? Options: A: There is much more rainfall in California than in Utah. B: The water it delivers becomes lighter when it moves inland. C: Its chemical composition is less stable than in other areas. D: It gathers more light isotopes as it moves eastward.
(Answer)
B

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Read the article and select the best answer. Article: Making friends is a skill like most skills. It improves with practice. If you want to meet people and make friends, you must be willing to take some action. You must first go where there are people. You won't make friends staying home alone. Joining a club or a group, talking with those who like the same things as you do is much easier. Or join someone in some activity. Many people are nervous when talking to new people. After all meeting strangers means facing the unknown. And it's human nature to feel a bit uncomfortable about unknown. Most of our fears about dealing with new people comes from doubts about ourselves. We imagine other people are judging us, finding us too tall or too short, too this or too that. But don't forget that they must be feeling the same way. Try to accept yourself as you are, and try to put the other person at ease. You'll both feel more comfortable. Try to act self-confident even if you don't feel that way. When you enter a room full of strangers, such as a new classroom, walk tall and straight, look directly at other people and smile. If you see someone you'd like to speak to, say something. Don't wait for the other person to start a conversation. Just meeting someone new does not mean that you will make friends with that person--friendship is based on mutual liking and "give and take". It takes time and effort to develop. Question: Which of the following statements is NOT TRUE? Options: A: Making friends needs practicing. B: Making friends needs to be more active in getting in touch with people. C: When meeting someone, make him feel nice and easy. D: Before making friends with someone, judge him if he's too this or too that.
(Answer)
D

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Read the article and select the best answer. Article: Do you like listening to English songs to learn the language ? Some students don't believe doing so can help them learn English. I have to say they think wrongly. Listening to English songs can help you learn the language better. You may ask how. Just read on. Lyrics are not easily forgotten. You listen to them over and over again throughout your life. Once you learn them, they are going to stay with you, and you are going to review them repeatedly because you enjoy them. If you learn just one song per week for a year, those are 52 songs full of new vocabulary and phrases that you will never forget. Songs give you perfect pronunciation models. As you learn to sing them, you are practicing your pronunciation, you are imitating native speakers, and you are learning how to speak better. The rhythm naturally leads to better pronunciation, better intonation , and more fluency. When you start paying attention to the lyrics, your listening skills naturally improve. Once you learn a few songs, you'll start gathering a lot of songs and vocabulary. A larger vocabulary usually means better listening comprehension. Just the fact that you start caring about the lyrics will activate your listening skills and listening to music in English will become an enjoyable learning exercise. Another huge _ is that you get to practice your grammar. Some of the most intelligent grammar questions my students bring to me come from songs. You can probably even map the entire language into pop songs and greatly improve your grammar by learning the lyrics to your favorite songs. Now we can conclude that listening to English songs can really help you learn the language well. So listen to more English songs in your free time. You can put the lyrics on your ipod or iphone and read them as you listen. Believe me, and you'll benefit a lot. Question: What is the text mainly about ? Options: A: What people can do to improve their English. B: Why English learners like listening to English songs. C: What songs people can listen to so as to improve English. D: Why listening to English songs helps improve our English.
(Answer)
D