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3. Passage Thirteen Trees are useful to man in three important ways: they provide him with wood and other products; they give him shade; and they help to prevent droughts and floods. Unfortunately， in many parts of the world， man has not realized that the third of these services is the most important. In his eagerness to make money from trees， he has cut them down in large numbers， only to find that without them he has lost the best friends he had. And besides， he is usually too careless to plant and look after new trees. So the forests slowly disappear. This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees， their roots break up soil——allowing the rain to sink in——and also bind the soil， thus preventing it from being washed away easily; but where there are no trees， the rain falls on hard ground and flows away， causing floods and carrying away the rich top-soil. When all the top-soil is gone， nothing remains but worthless desert. Two thousand years ago a rich and powerful country cut down its trees to build warships， with which to gain itself an empire. It set up the empire but， without its trees， its soil became poor and it grew weak. When the empire fell to pieces， the home country found itself faced with floods and starvation.Why did the country mentioned in the passage suffer from floods and starvation?
2. Passage Thirteen Trees are useful to man in three important ways: they provide him with wood and other products; they give him shade; and they help to prevent droughts and floods. Unfortunately， in many parts of the world， man has not realized that the third of these services is the most important. In his eagerness to make money from trees， he has cut them down in large numbers， only to find that without them he has lost the best friends he had. And besides， he is usually too careless to plant and look after new trees. So the forests slowly disappear. This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees， their roots break up soil——allowing the rain to sink in——and also bind the soil， thus preventing it from being washed away easily; but where there are no trees， the rain falls on hard ground and flows away， causing floods and carrying away the rich top-soil. When all the top-soil is gone， nothing remains but worthless desert. Two thousand years ago a rich and powerful country cut down its trees to build warships， with which to gain itself an empire. It set up the empire but， without its trees， its soil became poor and it grew weak. When the empire fell to pieces， the home country found itself faced with floods and starvation.Why do forests in many parts of the world slowly disappear?
1. Passage Thirteen Trees are useful to man in three important ways: they provide him with wood and other products; they give him shade; and they help to prevent droughts and floods. Unfortunately， in many parts of the world， man has not realized that the third of these services is the most important. In his eagerness to make money from trees， he has cut them down in large numbers， only to find that without them he has lost the best friends he had. And besides， he is usually too careless to plant and look after new trees. So the forests slowly disappear. This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees， their roots break up soil——allowing the rain to sink in——and also bind the soil， thus preventing it from being washed away easily; but where there are no trees， the rain falls on hard ground and flows away， causing floods and carrying away the rich top-soil. When all the top-soil is gone， nothing remains but worthless desert. Two thousand years ago a rich and powerful country cut down its trees to build warships， with which to gain itself an empire. It set up the empire but， without its trees， its soil became poor and it grew weak. When the empire fell to pieces， the home country found itself faced with floods and starvation. What is the most important service of trees to man according to the passage?
5. Passage Twelve What are the differences between public and private in American higher education? A big difference involves money. Public colleges and universities charger for an education just like private schools. But state schools cost less because they get money from the states that started them to educate local citizens. As a result， out-of-state and international students usually pay more than state residents， at least the first year. The state with the most residents， almost forty million， is California. Its systems of two-year and four-year colleges and universities are among the largest in the world. But the example we are going to focus on today is to the north of California， in a much smaller state on the West Coast: Oregon. The University of Oregon， located in Eugene， is one of the campuses in the Oregon University System. The cost for undergraduates this year is $6，000 for state residents. Housing is an additional $8，000. Non-residents pay the same for housing——but almost $20，000 for tuition and fees. Let’s see how these numbers compare to a private college in Oregon. Lewis and Clark College in Portland has 4，000 students， compared to 20，000 at the University of Oregon. Housing costs $800 more than at the state school. But the big difference is tuition. The published price at Lewis and Clark is almost $34，000. Yet Lewis and Clark is one of the few American colleges to offer financial aid for international students. Each year it awards financial aid to twenty students from other countries. And it says the average award last year was 19，000 dollars. That would make Lewis and Clark cheaper for international students than the University of Oregon. But， of course， prices alone do not say anything about the quality of a school or the value of an education. We can conclude from the passage that the cost and the quality of a university are
4. Passage Twelve What are the differences between public and private in American higher education? A big difference involves money. Public colleges and universities charger for an education just like private schools. But state schools cost less because they get money from the states that started them to educate local citizens. As a result， out-of-state and international students usually pay more than state residents， at least the first year. The state with the most residents， almost forty million， is California. Its systems of two-year and four-year colleges and universities are among the largest in the world. But the example we are going to focus on today is to the north of California， in a much smaller state on the West Coast: Oregon. The University of Oregon， located in Eugene， is one of the campuses in the Oregon University System. The cost for undergraduates this year is $6，000 for state residents. Housing is an additional $8，000. Non-residents pay the same for housing——but almost $20，000 for tuition and fees. Let’s see how these numbers compare to a private college in Oregon. Lewis and Clark College in Portland has 4，000 students， compared to 20，000 at the University of Oregon. Housing costs $800 more than at the state school. But the big difference is tuition. The published price at Lewis and Clark is almost $34，000. Yet Lewis and Clark is one of the few American colleges to offer financial aid for international students. Each year it awards financial aid to twenty students from other countries. And it says the average award last year was 19，000 dollars. That would make Lewis and Clark cheaper for international students than the University of Oregon. But， of course， prices alone do not say anything about the quality of a school or the value of an education. The costs of tuition and housing in Lewis and Clark College are ( ) .
3. Passage Twelve What are the differences between public and private in American higher education? A big difference involves money. Public colleges and universities charger for an education just like private schools. But state schools cost less because they get money from the states that started them to educate local citizens. As a result， out-of-state and international students usually pay more than state residents， at least the first year. The state with the most residents， almost forty million， is California. Its systems of two-year and four-year colleges and universities are among the largest in the world. But the example we are going to focus on today is to the north of California， in a much smaller state on the West Coast: Oregon. The University of Oregon， located in Eugene， is one of the campuses in the Oregon University System. The cost for undergraduates this year is $6，000 for state residents. Housing is an additional $8，000. Non-residents pay the same for housing——but almost $20，000 for tuition and fees. Let’s see how these numbers compare to a private college in Oregon. Lewis and Clark College in Portland has 4，000 students， compared to 20，000 at the University of Oregon. Housing costs $800 more than at the state school. But the big difference is tuition. The published price at Lewis and Clark is almost $34，000. Yet Lewis and Clark is one of the few American colleges to offer financial aid for international students. Each year it awards financial aid to twenty students from other countries. And it says the average award last year was 19，000 dollars. That would make Lewis and Clark cheaper for international students than the University of Oregon. But， of course， prices alone do not say anything about the quality of a school or the value of an education. This year a foreign undergraduate student in the University of Oregon should pay
2. Passage Twelve What are the differences between public and private in American higher education? A big difference involves money. Public colleges and universities charger for an education just like private schools. But state schools cost less because they get money from the states that started them to educate local citizens. As a result， out-of-state and international students usually pay more than state residents， at least the first year. The state with the most residents， almost forty million， is California. Its systems of two-year and four-year colleges and universities are among the largest in the world. But the example we are going to focus on today is to the north of California， in a much smaller state on the West Coast: Oregon. The University of Oregon， located in Eugene， is one of the campuses in the Oregon University System. The cost for undergraduates this year is $6，000 for state residents. Housing is an additional $8，000. Non-residents pay the same for housing——but almost $20，000 for tuition and fees. Let’s see how these numbers compare to a private college in Oregon. Lewis and Clark College in Portland has 4，000 students， compared to 20，000 at the University of Oregon. Housing costs $800 more than at the state school. But the big difference is tuition. The published price at Lewis and Clark is almost $34，000. Yet Lewis and Clark is one of the few American colleges to offer financial aid for international students. Each year it awards financial aid to twenty students from other countries. And it says the average award last year was 19，000 dollars. That would make Lewis and Clark cheaper for international students than the University of Oregon. But， of course， prices alone do not say anything about the quality of a school or the value of an education. According to the passage， the Oregon University System ( ) .
1. Passage Twelve What are the differences between public and private in American higher education? A big difference involves money. Public colleges and universities charger for an education just like private schools. But state schools cost less because they get money from the states that started them to educate local citizens. As a result， out-of-state and international students usually pay more than state residents， at least the first year. The state with the most residents， almost forty million， is California. Its systems of two-year and four-year colleges and universities are among the largest in the world. But the example we are going to focus on today is to the north of California， in a much smaller state on the West Coast: Oregon. The University of Oregon， located in Eugene， is one of the campuses in the Oregon University System. The cost for undergraduates this year is $6，000 for state residents. Housing is an additional $8，000. Non-residents pay the same for housing——but almost $20，000 for tuition and fees. Let’s see how these numbers compare to a private college in Oregon. Lewis and Clark College in Portland has 4，000 students， compared to 20，000 at the University of Oregon. Housing costs $800 more than at the state school. But the big difference is tuition. The published price at Lewis and Clark is almost $34，000. Yet Lewis and Clark is one of the few American colleges to offer financial aid for international students. Each year it awards financial aid to twenty students from other countries. And it says the average award last year was 19，000 dollars. That would make Lewis and Clark cheaper for international students than the University of Oregon. But， of course， prices alone do not say anything about the quality of a school or the value of an education. One of the differences between public and private universities is ( ) .
5. Passage Eleven Doctors say anger can be an extremely damaging emotion， unless you learn how to deal with it. They warn that anger can lead to heart disease， stomach problems， headaches， emotional problems and breast cancer. Anger is a normal emotion that we all feel from time to time. Some people express anger openly in a calm and reasonable way. Others burst with anger， screaming and yelling. But still others keep their anger inside. They cannot or will not express it. This is called 【repressing】 anger. For years some doctors claim that both repressing and expressing anger can be dangerous. They say that in both situations the brain of an angry person releases the same hormones (荷尔蒙). They spend the heart rate， raise blood pressure or sugar level in the blood. As a result， the angry person feels excited and is ready to react. The violent reaction may lead to high blood pressure. However， some other doctors argue that repressing anger is more dangerous to a person’s health than expressing it. They believe that those who keep their anger inside may face a greater danger of heart disease. Most doctors agree that it is important to learn how to deal with anger. They say the first step is to admit that you are angry and recognize the real cause of the anger， then decide if the cause is serious enough to get angry about. If so， you should not express your anger immediately and try to wait until your anger has cooled down， so that you are able to express yourself calmly and reasonably. They also believe that a good way to deal with anger is to find humor in the situation that has made you angry. After all， it is much healthier to laugh than to get angry .What is the tone of this passage?
4. Passage Eleven Doctors say anger can be an extremely damaging emotion， unless you learn how to deal with it. They warn that anger can lead to heart disease， stomach problems， headaches， emotional problems and breast cancer. Anger is a normal emotion that we all feel from time to time. Some people express anger openly in a calm and reasonable way. Others burst with anger， screaming and yelling. But still others keep their anger inside. They cannot or will not express it. This is called 【repressing】 anger. For years some doctors claim that both repressing and expressing anger can be dangerous. They say that in both situations the brain of an angry person releases the same hormones (荷尔蒙). They spend the heart rate， raise blood pressure or sugar level in the blood. As a result， the angry person feels excited and is ready to react. The violent reaction may lead to high blood pressure. However， some other doctors argue that repressing anger is more dangerous to a person’s health than expressing it. They believe that those who keep their anger inside may face a greater danger of heart disease. Most doctors agree that it is important to learn how to deal with anger. They say the first step is to admit that you are angry and recognize the real cause of the anger， then decide if the cause is serious enough to get angry about. If so， you should not express your anger immediately and try to wait until your anger has cooled down， so that you are able to express yourself calmly and reasonably. They also believe that a good way to deal with anger is to find humor in the situation that has made you angry. After all， it is much healthier to laugh than to get angry .What is the best title for this passage?
