Rising levels of carbon dioxide in the atmosphere are a major cause of climate c

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Rising levels of carbon dioxide in the atmosphere are a major cause of climate change, and now a new study has confirmed that atmospheric CO2 is also affecting the ocean chemistry and potentially harming sea life.
Montana State University scientist Robert Dore has been researching the water in the Pacific Ocean for almost two decades.
"We"ve been going to the same spot in the Pacific Ocean, and we try and characterize long-term change in the open ocean environment. And one of the key things that we measure is CO2 levels. And we"ve been able to record this increasing quantity of atmospheric CO2 into the ocean."
Scientists expected that as atmospheric CO2 increased, more and more of the carbon dioxide would be absorbed into the ocean, affecting the chemical balance of the sea water, with a potentially harmful impact on shellfish and coral in particular.
"As carbon dioxide dissolves（溶解） in the water, or seawater in this case, it forms a weak acid, carbonic acid," Dore explains. "And therefore, as the concentration of CO2 in the atmosphere goes up and that exchanges with the surface seawater, it drives the pH down, and makes it more acidic."
The seawater Dore and his colleagues have analyzed confirms what the theory predicts.
The effect was particular striking at about 250 meters down, and again at 500 meters. Dore and his colleagues came up with two possible explanations. It could be that surface water picked up CO2 and then moved to those depths. Or there could be a biological explanation.
"It"s important to realize that the oceans are really becoming acidic. And it can have negative impacts on a whole variety of sea life from fish to coral. It"s potentially catastrophic."
53．What can be the best title of the passage?
A．Sea Life Facing Danger B．Climate Change Affecting Seawater
C．Oceans Becoming More Acidic D．Scientist Researching Seawater
54．Which of the following shows the process of the impact of atmospheric CO2 on sea life?
a．Sea life is endangered．
b．CO2 goes into the surface water．
c．The ocean chemistry is affected．
d．CO2decreases the PH and makes the seawater more acidic．

e．CO2 levels in the atmosphere go up．
55．Scientist Robert Dore came to the conclusion based on__________.
A．his research and analysis
B．a major cause of climate change
C．some former theory
D．the expectation of other scientists
56．What does the passage want to tell us most?
A．It takes time to make a scientific study．
B．Atmospheric CO2 is doing harm to sea life．
C．Robert Dore is a committed and serious scientist．
D．Measures should be taken to prevent the potential catastrophe．

答案

53---56 ABAD

解析

略

举一反三

The GUARANTEE ON THIS WATER HEATER IS IN EFFECT ONLY WHEN THE HEATER IS INSTALLED AND OPERATED IN ACCORDANCE WITH THESE INSTRUCTIONS. READ THESE INSTRUCTIONS THOROUGHLY BEFORE STARTING.
LOCATION:
　　Select a location accessible to water lines and power supply. Do not locate the heater where water lines could be subjected to(受…影响) freezing temperatures. It is recommended that the heater be located near the center of greatest hot water usage to prevent heat loss through the pipes.
ELECTRICAL CONNECTIONS:
　　Before any electrical connections are made, be sure that the heater is full of water and that the valve(阀门) in the cold water supply line is open.
OPERATION
When the switch is closed, the operation of this electric water heater is automatic. The thermostats are preset to the "HOT" setting to provide a water temperature of approximately 120oF to reduce the risk of being burnt.
MAITENACE
Shut off the electric power whenever the water supply is turned off.
Shut off the electric power, water supply and drain the heater completely to prevent freezing whenever the building is left unoccupied during the cold weather months.
SERVICE
The trip–free devices on this heater will cut off all power if temperature of water is above 190F. If there is no hot water after a reasonable period of time, check the main fuse(保险丝) box. In the event that the fuses have not blown, call a serviceman.
72.The location of the water heater shall ___________.
A. be close to water lines and power supply
B. be subjected to low temperature
C. be in the centre of the house
D. have a longer distance to hot water usage.
73.Before any connection of power , make sure that one thing you have to do is _____.
A. to have the heater in the water     B. to open the cold water inlet valve.
C. to shut off the thermostats         D. to replace wiring diagram
74.When you are not using the heater in winter months, it is better for you to________.
A. have the tank full of clear water    B. drain the heater
C. to leave it untouched             D. prevent it from losing heat
75. What will happen to the heater when the temperature of water is above 190F?
A. it will cause damage         B. It will break off automatically.
C. It will produce cold water.    D. It will blow the fuse.

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"Depend on yourself" is what nature says to every man. Parents can help you. Teachers can help you. But all these only help you to help yourself.
There have been many men in history. But many of them were very poor in childhood, and no uncles, aunts or friends to help them. Schools were few. They could not depend upon them for an education. They saw how it was and set to work with all their strength to know something. They worked their own way till they became well-known.
One of the most famous teachers in England used to tell his pupils, "I can not make worthy men of you, but I can help make men of yourself."
Some young men don"t try their best to make themselves valuable to the human beings. They can never gain achievement(成就) unless they see their weak points and change their course. They are nothing now, and will be nothing as long as they live, unless they accept the advice of their parents and teachers, and depend on their own efforts.
64. Which of the following titles fits this article best?
A. What Nature Says to Every Man.    B. How to Be Famous.
C. Men Must Help Each Other.        D. Depend on Yourself.
65. Many of the great men succeeded because ____________．
A. they wanted very much to become well known
B. they made great efforts to learn and work
C. they had received a good education
D. they had rich parents
66. According to the famous teacher in England, a teacher can________.
A. make his pupils rich men
B. help his pupils find a way to be famous
C. help his pupils make themselves useful men
D. make his pupils men of strength and courage
67. If young people depend on their own efforts, ______.
A. they are sure to be very famous in the world
B. they can be successful in their lives
C. they can live without their families
D. they no longer need any help

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第三部分：阅读理解（共两节，40分）
阅读下列短文，从每题所给的A、B、C、D中，选出最佳选项，并在答题卡上将该项涂黑。
Learning new words is learning new ideas: High school students can take control of their
learning by always looking up new words and finding out what they mean. They should keep a dictionary and a thesaurus close at hand.
Make clear lists: Students should make a list of everything that they need to get done. They should check off assignments （作业）once completed. They should include clear due dates.
Make a commitment: Active learners will resolve to keep up –to-date from the start. They will avoid procrastinating (delay doing something). They will complete most of their work as early as possible.
Independent work is best: Students will so all assignments independently—they will never copy! Students who copy are passive learners. Passive learners do not give their mind a chance to think on its own.
Organization is key: Students should keep an excellent folder and notebook. All problems should be clearly stated and solutions given. All tests and quizzes should be corrected and used as study guides for exams and finals.
All actions without solutions are dead: Active learners will always show their work needed to solve a problem. Active learners will never turn in a list of answers without giving an explanation or a solution.
Advanced reading: Students should do any required reading for the topic before class. They should write an outline of the section or chapter. They should actively take notes as they read to help them remember.
56．If you want to be successful in exams and finals you should ________.
A．give your mind a chance to think on its own
B．check off your papers once completed
C．keep an excellent folder and notebook
D．hand in your homework on time
57．If you want to be an active learner you________.
A．shouldn’t copy others assignments
B．shouldn’t write an outline before class
C．needn’t correct mistakes in the tests
D．needn’t kept a dictionary at hand
58．The best title of the passage is “________”.
A．How to Be an Effective Reader B．How to Get Good Scores in Tests
C．How to Collect Academic Information D．How to Actively Study in High School

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Students often meet with questions as follows: bullied by someone, worried about a weak subject, puzzled by family problems or concerned about pets at home. All the questions above may make you not concentrated on your study. Who can you turn to if you are such an unlucky student? A great person to share your thoughts and feelings with is your school counselor(顾问).
Add school counselors to the list of people you can turn to when you need help. They know how to listen and can help kids with life’s challenges (挑战) . Counselors have special training in how to help kids solve problems, make decisions, and stand up for themselves. That doesn’t means your counselor will wave a magic wand and the problem will go away. But it does mean he or she will help you cope with (应付) it. Coping is an important word to know. Sometimes, kids and grown-ups have difficult problems. Coping means that someone is trying to handle these problems and make things better.
Your school counselor is available for you and wants to make your school experience the best it can be. The counselor’s job is to take your problem seriously and help you find a solution. The counselor also wants to help you learn as much as you can in class, be a contributing member of the school community, and be a positive influence on your environment.
60. From the underlined sentences we may infer that ______.
A. school counselor is one of those who can help you
B. school counselors are those you can make friends with
C. one needs various people to help him or her
D. one has to know and deal with all kinds of people at school
61. According to the passage, which of the following happens that you may not turn to the counselors?
A. Other students treat you cruelly.      B. You are too poor to go school
C. You are weak in one subject         D. You have family problems.
62. What does the writer think of the school counselors?
A. They can solve any question you meet with
B. They can help students get their life or study improved.
C. They are as important as teachers at school.
D. They may punish those who have bullied you
63. Which of the following may be the best title of the passage? _____.
A. School counselors   B. School problems   C. Students’ problems     D. Free counselors

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As a parent you have the responsibility to help your children understand money. But first you will need to understand your own attitude towards money, and make sure to practise what you teach.
Ask yourself what things that cost money are the most important to you. Also ask yourself what financial goals do you have for yourself and your family this year, in five years, and so on?
Take a minute to write down a list. Below are some ideas to get you started. There’s no right or wrong here. This exercise is just to help you grasp what money means to you so that you can help your children understand your values.
◆ Home
◆ Household expenses
◆ Education
◆ Recreation, entertainment
◆ Savings
◆ Charitable contributions
You can start discussing money when your children are as young as three years old. The best time to teach a child anything is when he or she shows an interest. So he prepared to start talking about money when your child starts asking you to buy candy or toys.
Begin by showing how money is exchanged for items or services. Show your children how money works by allowing them to buy something, such as a toy or a book.
Be open and honest, and explain to your children why they can or cannot have certain items. If you must say no to a child’s request to spend money, you might say, “You have enough toy trucks now.” Or, if the request is for multiple items, “You have a choice to make, between this toy and that one.”
You can start explaining the bigger picture once your children understand the basic function of money. Show an older child how money is used to provide for the whole family.
45. Why should parents understand their own money attitudes first?
A. To help their children earn money.      B. To set an exampel to their children.
C. To help them set financial goals.       D. To help them tell right from wrong.
46. Which of the following is NOT one of the major categories of things that cost money listed in the article?
A. Travel and investments.               B. Household expenses.
C. Education and entertainment.         D. Savings and charitable contributions.
47. Which of the following is NOT a way to teach the children about money?
A. Showing how money is exchanged.
B. Allowing children to buy whatever they like.
C. Explaining the limits involved in using money.
D. Having an open discussion about money.
48. According to the passage, when should parents start teaching a child about money?
A. When the child can understand its basic function.
B. When the child can understand how money is used to provide for the whole family.
C. When the child knows how to support a family.
D. As young as three, or when they start showing an interest.

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