Koalas look like teddy bears, ___21___ they are not bears at all. They are really animals called marsupials.These animals carry their young in pouches, like kangaroos ___22___.Koalas live in the forests of Australia. They spend most of their lives in eucalyptus trees. They ___23___ never come down even for a drink of water. In fact, their names means “no drink.” The koalas have a ___24___ of knowing which trees they can feed on safely. They eat each leaf the same way. ___25___ , they bite the leaf off the stem and then they chew it from base to ___26___.When a koala is born, it is less than an inch long. The baby crawls into the mother’s ___27___ right away and stays there for six months. After that, the baby rides piggyback or hangs on ___28___ the mother’s front paws and legs. Young koalas stay with their mothers for at least a year.The koala is a strong climber. Its paws end with sharp claws, ___29___ he can get a good grip on tree branches. Koalas sleep in the eucalyptus trees on most of the day and eat at night. Koalas may live alone or in small ___30___ . Males sometimes use their sharp claws as weapons. Most of the time, koala families live together peacefully.29.

Koalas look like teddy bears, ___21___ they are not bears at all. They are really animals called marsupials.These animals carry their young in pouches, like kangaroos ___22___.Koalas live in the forests of Australia. They spend most of their lives in eucalyptus trees. They ___23___ never come down even for a drink of water. In fact, their names means “no drink.” The koalas have a ___24___ of knowing which trees they can feed on safely. They eat each leaf the same way. ___25___ , they bite the leaf off the stem and then they chew it from base to ___26___.When a koala is born, it is less than an inch long. The baby crawls into the mother’s ___27___ right away and stays there for six months. After that, the baby rides piggyback or hangs on ___28___ the mother’s front paws and legs. Young koalas stay with their mothers for at least a year.The koala is a strong climber. Its paws end with sharp claws, ___29___ he can get a good grip on tree branches. Koalas sleep in the eucalyptus trees on most of the day and eat at night. Koalas may live alone or in small ___30___ . Males sometimes use their sharp claws as weapons. Most of the time, koala families live together peacefully.30.

Passage 1In the United States, boys and girls start school when they are five years old. In some states they must stay in school until they are sixteen. Most students are seventeen or eighteen years old when they graduate from secondary schools. Another name for secondary school is high school.Most children go to public elementary and secondary schools. The parents of public school pupils do not have to pay directly for their children’s education because tax money supports the public schools. If a child attends a private school, his parents pay the school for the child’s education.Today about half of the high school graduates go on to colleges and universities. Some colleges and universities receive tax money from the government. A student at a state university does not have to pay very much if his parents live in that state. Private colleges and universities are expensive; however, almost half of the college students in the United States work while they are studying. When a student’s family is not rich, he has to earn money for part of his college expenses.31.The students in all the states of the U.S. must finish _________ school until they are _________ at least.

Passage 1In the United States, boys and girls start school when they are five years old. In some states they must stay in school until they are sixteen. Most students are seventeen or eighteen years old when they graduate from secondary schools. Another name for secondary school is high school.Most children go to public elementary and secondary schools. The parents of public school pupils do not have to pay directly for their children’s education because tax money supports the public schools. If a child attends a private school, his parents pay the school for the child’s education.Today about half of the high school graduates go on to colleges and universities. Some colleges and universities receive tax money from the government. A student at a state university does not have to pay very much if his parents live in that state. Private colleges and universities are expensive; however, almost half of the college students in the United States work while they are studying. When a student’s family is not rich, he has to earn money for part of his college expenses.32.The tax money from the states supports the public schools, doesn’t it?

Passage 1In the United States, boys and girls start school when they are five years old. In some states they must stay in school until they are sixteen. Most students are seventeen or eighteen years old when they graduate from secondary schools. Another name for secondary school is high school.Most children go to public elementary and secondary schools. The parents of public school pupils do not have to pay directly for their children’s education because tax money supports the public schools. If a child attends a private school, his parents pay the school for the child’s education.Today about half of the high school graduates go on to colleges and universities. Some colleges and universities receive tax money from the government. A student at a state university does not have to pay very much if his parents live in that state. Private colleges and universities are expensive; however, almost half of the college students in the United States work while they are studying. When a student’s family is not rich, he has to earn money for part of his college expenses.33.According to the text, a child in the U.S. can enter a college or a university only _________.

Passage 2Music which is original is individual and personal. That is to say, it can be identified as belonging to a particular composer. It has particular qualities, or a style, which are not copied from another. If you can recognize the style of a composer, you will probably be able to tell that a certain composition belongs to him or her even though you have never heard it before. A composer organizes his melodies (旋律) and rhythms and combines sounds to create harmony. He may be capable of thinking up very good, original tunes, yet if tunes are poorly organized, the final result will not be to standard.Good music expresses feelings in a way that is suitable to those feelings. There may be joy, sorrow, fear, love, anger, or whatever. Bad music, on the other hand, may confuse unrelated feelings, it may not express any important feeling at all, or it may exaggerate some feelings and make them vulgar, that is, cheap and ugly.Good music will stand the test of time. It will not go out of fashion but will continue to be enjoyed and respected long after it is first introduced. It will gain a kind of permanent status while bad music will disappear and be forgotten quickly. In pop music, where the general rule seems to be “the newer the better”, the test of time is the hardest test of all to pass.34.A piece of original music _________.

Passage 2Music which is original is individual and personal. That is to say, it can be identified as belonging to a particular composer. It has particular qualities, or a style, which are not copied from another. If you can recognize the style of a composer, you will probably be able to tell that a certain composition belongs to him or her even though you have never heard it before. A composer organizes his melodies (旋律) and rhythms and combines sounds to create harmony. He may be capable of thinking up very good, original tunes, yet if tunes are poorly organized, the final result will not be to standard.Good music expresses feelings in a way that is suitable to those feelings. There may be joy, sorrow, fear, love, anger, or whatever. Bad music, on the other hand, may confuse unrelated feelings, it may not express any important feeling at all, or it may exaggerate some feelings and make them vulgar, that is, cheap and ugly.Good music will stand the test of time. It will not go out of fashion but will continue to be enjoyed and respected long after it is first introduced. It will gain a kind of permanent status while bad music will disappear and be forgotten quickly. In pop music, where the general rule seems to be “the newer the better”, the test of time is the hardest test of all to pass.35.Good music is _________.

Passage 2Music which is original is individual and personal. That is to say, it can be identified as belonging to a particular composer. It has particular qualities, or a style, which are not copied from another. If you can recognize the style of a composer, you will probably be able to tell that a certain composition belongs to him or her even though you have never heard it before. A composer organizes his melodies (旋律) and rhythms and combines sounds to create harmony. He may be capable of thinking up very good, original tunes, yet if tunes are poorly organized, the final result will not be to standard.Good music expresses feelings in a way that is suitable to those feelings. There may be joy, sorrow, fear, love, anger, or whatever. Bad music, on the other hand, may confuse unrelated feelings, it may not express any important feeling at all, or it may exaggerate some feelings and make them vulgar, that is, cheap and ugly.Good music will stand the test of time. It will not go out of fashion but will continue to be enjoyed and respected long after it is first introduced. It will gain a kind of permanent status while bad music will disappear and be forgotten quickly. In pop music, where the general rule seems to be “the newer the better”, the test of time is the hardest test of all to pass.36.The passage is concerned with _________.

Passage 3Personal interviewing (面试) is most effective when all the people to be interviewed are located in a relatively small geographical area. Otherwise, the time and expense spent in traveling from one person to another makes this type of interviewing economically impractical. Personal interviewing is usually used when the information needed is too complex to be gathered by another technique. For example, a problem being studied may require the interviewer to probe beyond the more superficial answers that might be obtained with another method.It is sometimes assumed that personal interviewing is the most accurate of all survey research techniques. Although personal interviewing may be accurate in many cases, human errors may prevent a researcher from obtaining valid results. Questions perceived by the interviewee(应试者) as an invasion of privacy or threatening in any way will probably produce false or partially true answers. Also, since the interviewer（面试者）must interpret the respondent’s statements, a certain amount of information loss results even though the respondent may be answering truthfully.In spite of the problems, at least two major advantages are provided by this research technique. First, the alert interviewer can generally tell if the respondent is being truthful or if he or she is giving superficial or untrue responses. Second, the interviewer can rephrase questions, give more explanation, or probe more deeply if the initial questions do not produce the information desired. As a result, the information gleaned should be more accurate than that provided by interviews where no one is present to clarify questions or to interpret answers.37.Sometimes a researcher cannot get valid results because _________.

Passage 3Personal interviewing (面试) is most effective when all the people to be interviewed are located in a relatively small geographical area. Otherwise, the time and expense spent in traveling from one person to another makes this type of interviewing economically impractical. Personal interviewing is usually used when the information needed is too complex to be gathered by another technique. For example, a problem being studied may require the interviewer to probe beyond the more superficial answers that might be obtained with another method.It is sometimes assumed that personal interviewing is the most accurate of all survey research techniques. Although personal interviewing may be accurate in many cases, human errors may prevent a researcher from obtaining valid results. Questions perceived by the interviewee(应试者) as an invasion of privacy or threatening in any way will probably produce false or partially true answers. Also, since the interviewer（面试者）must interpret the respondent’s statements, a certain amount of information loss results even though the respondent may be answering truthfully.In spite of the problems, at least two major advantages are provided by this research technique. First, the alert interviewer can generally tell if the respondent is being truthful or if he or she is giving superficial or untrue responses. Second, the interviewer can rephrase questions, give more explanation, or probe more deeply if the initial questions do not produce the information desired. As a result, the information gleaned should be more accurate than that provided by interviews where no one is present to clarify questions or to interpret answers.38.In the second paragraph, the phrase “an invasion of privacy” most probably means _________.