¡¡ ( D )

By far the most common difficulty in study is simple failure to get down to regular concentrated work. This difficulty is much greater for those who do not work to a plan and have no regular routine of study. Many students muddle along, doing a bit of this subject or that, as the mood takes them, or letting their set work pile up until the last possible moment.

Few students work to a set timetable. They say that if they did construct a timetable for themselves they would not keep to it, or would have to alter it constantly, since they can never predict from one day to the next what their activities will be.

No doubt some temperaments take much more kindly to a regular routine than others. There are many who shy away from the self-regimentation(Ñϸñ¿ØÖÆ)of a weekly timetable, and dislike being tied down to a definite programme of work. Many able students claim that they work in cycles. When they become interested in a topic they work on it intensively for three or four days at a time. On other days they avoid work completely. It has to be confessed that we do not fully understand the complexities of the motivation to work. Most people over 25 years of age have been used to a work routine, and the majority of really productive workers set aside regular hours for the more important aspects of their work. The ¡°tough-minded¡± school of workers is usually very contemptuous (ÃïÊÓµÄ) of the idea that good work can only be done spontaneously, under the influence of inspiration.

Those who believe that they need only work and study as the fit takes them have a mistaken belief either in their own talent or in the value of ¡°freedom¡±. Freedom from discipline leads to unhappiness rather than to ¡°self-expression¡± or ¡°personality development¡±. Our society insists on regular habits, timekeeping and punctuality, and whether we like it or not, if we mean to make our way in society we have to comply with its demands.

76. The most widespread problem in applying oneself to study is that of ¡¡¡¡¡¡¡¡.

A. the failure to keep to a routine of intensive work

B. changing from one subject to another

C. willingness to follow a systematic plan

D. applying oneself to a subject only when one feels inclined

77. Those workers with strict views on work ¡¡¡¡¡¡¡¡.

A. are very critical of the belief that good work can be a natural product of instinct

B. reject the idea that good work is second nature to man

C. do not regard as serious the opinion that good work can be done at any time regardless of inspiration

D. pay no attention to the idea that good work can only be done when they are prompted by internal stimulus

78. In Paragraph 4 ¡°as the fit takes them¡± means ¡¡¡¡¡¡¡¡.

A. when they have the energy¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. when they are in the mood

C. when they find conditions suitable¡¡¡¡¡¡¡¡¡¡ D. when they feel fit

79. A suitable title for the passage might be ¡¡¡¡¡¡¡¡.

A. Attitudes to Study¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. Study Plans

C. The Difficulties in Study¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ ¡¡¡¡¡¡ D. Study and Self-discipline

Section C

Directions: Read the following text and choose the most suitable heading from the list A-F for each paragraph. There is one extra heading which you do not need.¡¡

A. Different ways of making friends over the Internet
B. Forming a regular ¡° chat ¡± community
C. The changes the Internet has brought to our life
D. Meeting Internet friends face to face
E. Extension of friends over the Internet
F. Maintenance of friendship by keeping contact
80.
¡¡

We live in the information age, which is changing many of the ways in our daily life. One of the most interesting developments of the information age is the Internet, which is a vast network of computers that link people, businesses and communities around the world.

81.
¡¡

How do we make friends using the Internet? One way is to search for websites that have topics that interest us. For example, you might be interested in football. Then you could search for a site run by a popular football club. There are hundreds of football sites, and most of them have a special website for their fans. The same is true of popular culture, and many popular music bands have websites. Once you have located the right football club or pop group, then you will see where to click in order to ¡°chat¡± with other fans. The word ¡°chat¡± has got popular because of the Internet, which means a light conversation among friends. Another way to make friends using the Internet is to access sites that are devoted to this purpose. When you search the Internet for these sites you will find that there are plenty of opportunities to meet people of all ages and from many different backgrounds.

82.
¡¡

Making a new friend is only the first step. The key to a successful relationship over the Internet is to keep in touch with your friend. When the relationship works in this way, it is very rewarding for both partners. You can set the style and pace of the exchange to suit each other. If you use ¡° instant messenger ¡± systems, your chat becomes a dialogue, which is a lot of fun and can help strengthen the growing friendship.

83.
¡¡

You will soon find that the topics go far beyond a discussion of football or music, even though these topics brought you both together. Another way to strengthen the friendship is to include your school friends in your conversations too, and then you can form your own ¡°chat¡± group that meets regularly and becomes a small community of friends.

84.
¡¡

It is like belonging to a club. Your club can extend to many new and old friends, and their conversations will enrich your life in ways that you could have never imagined. If your Internet club grows then perhaps you will find ways to meet your new friends face to face, which will be another story.

µÚII¾í¡¡ (¹²45·Ö)

( B )

After 10 seasons wearing the No. 8 on his back, Kobe Bryant will become No 24 next season. The reason for the surprising decision by the Los Angeles Lakers super guard last week has become a hot topic for debate.
Bryant wore No 24 when he was in early high school, but he changed to No 33 in his senior year. He switched to No 8 when he was selected by the Lakers in 1996, and has been not changed since.
Bryant has refused to explain the decision until the end of the play-offs. So guessing Bryant¡¯s motive has become a popular game among NBA fans and newspaper columnists.
There are all kinds of speculations(²Â²â). Many say that Bryant wants to leave the past behind and have a fresh start. He has often been criticized for playing to benefit himself and not the team as a whole. Others say that he may be trying to compare himself to Michael Jordan. Jordan was famous for his No 23 jersey(Ô˶¯ÉÀ). Some, such as NBC Sport columnist Michael Ventre, argue that it is ¡°all about money¡±. Bryant will make more money by selling new jersey to his fans.
Some speculations are more about fun. For example, there is an opinion that Kobe is actually just a diehard fan of the popular TV drama ¡°24¡±.
All this talk has turned the number changed into a major issue. It seems that there is a lot of fuss over something that should be pretty simple.
Jersey numbers have their own special significance in American sports, especially basketball. Players choose their number when they join a team and they usually stick with that number for the rest of their career. When a great player retires, his team will honor him by retiring his number.
68. Which team has Bryant played for?
A. The Los Angels Lakers.¡¡¡¡¡¡¡¡¡¡ B. The Houston rockets.
C. The Chicago Bulls.¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D. The Miami Heats.
69. Bryant has worn No 8 ________ .
A. for two years and a half¡¡¡¡¡¡¡¡¡¡ B. for ten years
C. since he entered high school¡¡¡¡¡¡ D. since he left high school
70.Which of the following is NOT a speculation about Bryant¡¯s motive to change his number?
A. He wants to leave his past behind and have a fresh start.
B. He wants to compare himself to Jordan.
C. He wants to earn more money.
D. He wants to show that he is man of great importance.
71. What can we learn from the last paragraph?
A. When a great player retires, his team will reward him with much money.
B. A lucky number will be passed on to a new player.
C. An outstanding player¡¯s jersey number won¡¯t be used after his retirement.
D. A great player often changes his jersey number in the same team.
¡¡
( C )

¡¡

Writing being largely a self-taught occupation, texts on how to get about it -though great in number- seldom are of much use.

You try, and fail. Then try again, and perhaps fail not quite so grievously. Until at last, if you have some gift for it, the failures become less frequent, or at any rate less noticeable.

It is this ability to conceal one¡¯s defects(覴Ã)that passes, finally, for accomplishment.

Along the way there are the discouragements of unkind criticism, outright rejection, nagging insecurity and irregular inability to meet debts.

It is uncommon, therefore, to come across a book containing advice of much practical value for anyone toying with the dangerous idea of staring on a writing life.

A friend recently loaned me such a book, however - one I wish I¡¯d had the luck to read years ago, and which I would commend to any young person bent on making a career of words. It is the autobiography of the English novelist Anthony Trollope, first published in 1883, the year after his death.

Needing some means to support himself, Trollope at age 19 signed on as a junior clerk in the British postal service. He was at his desk at 5:30 each morning to write for three hours. And he remained in the mail service 33 years, long after reputation and prosperity had come to him.

Now, what of his advice?

1. For safety¡¯s sake, arm yourself with some other skills, some other line of work to fall back on. That way, failure at writing, though the disappointment may be keen, will not mean utter ruin.

2. Do not depend overly much on inspiration. Writing is a craft, which Trollope compared to the craft of shoemaking. The shoemaker who has just turned out one pair of his work sets to work immediately on the next pair.

3. Have a story to tell, but, more important than that, people it with characters who will speak and move as living creatures in the reader¡¯s mind. Without memorable characters, story alone is nothing.

4. Meet your deadlines. Life is endlessly ¡°painful and troublesome¡± for writers who can¡¯t finish their work on time.

5. Do not be inflated by praise. And, above all, do not be crushed by criticism.

6. Understand the risks of writing for a living. ¡°The career, when successful, is pleasant enough certainly; but when unsuccessful, it is of all careers the most painful.¡±

72. This passage mainly discusses ¡¡¡¡¡¡¡¡.

A. the difficulties and risks of making a career of words

B. the uselessness of instructions contained in writing manuals

C. the autobiography of the 19th century English novelist Anthony Trollope

D. sound advice provided in A. Trollope¡¯s autobiography

73. From the context we can figure out that the phrase ¡°pass for¡±in Paragraph 3 means ¡¡¡¡¡¡¡¡.

A. focus on¡¡¡¡¡¡¡¡¡¡¡¡ B. be regarded as ¡¡ ¡¡¡¡¡¡ C. be equal to ¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D. lie in

74. According to the author, writing ¡¡¡¡¡¡¡¡.

A. is basically a self-taught occupation and no instructions on how to deal with it are of any practical use

B. is a ¡°trial and error¡± process and it does not count whether you have the gift for writing or not

C. for a living is the most pleasant of all careers, full of praise and enjoyment

D. sometimes provides good hopes of winning public praise and escaping humiliating poverty

75. From the passage we may infer that the author is most probably ¡¡¡¡¡¡¡¡.

A. an instructor of writing¡¡¡¡ B. a writer¡¡¡¡ C. an educator¡¡¡¡¡¡¡¡¡¡¡¡ D. a publisher

Section A

Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.

No one would be willing to pay one-third of the price for the packaging or wrapping of what he or she purchases. But over-packaging has become a disease that leads to an __50__ waste of resources and __51__ environmental pollution.

The wasted packaging materials are __52__ to be worth about 280 billion yuan annually. And such packages and wrappings thrown away by customers __53__ up half of the volume of solid waste in cities. __54__, it is high time that regulations were __55__ to stop enterprises from spending too much on unnecessary packaging and wrapping.

To produce paper packaging or wrapping, many more trees have to be cut down. Over-packaging also limits the interest of consumers when they have to spend quite a high percentage on something that they will have to throw into the dustbin. The simple truth is that the more a producer spends on packaging, the __56__ the products it sells will be.

Product packaging and wrapping used to be very simple 30 years ago. "Shabby" was the word many had used to __57__ the way Chinese products were packaged. And shabby packaging was blamed for making Chinese products __58__ in the international market.

It is __59__ to pay enough attention to packaging or wrapping products in such a manner that they can be __60__ to customers' eyes. But that does not definitely justify that packaging should even outshine what is inside.

In the Chinese proverb, ¡°maidu huanzhu,¡± the buyer returns the pearl and just keeps the case because the __61__ is too fancy and luxurious. It not only laughs at the poor __62__ of the buyer, but also criticizes the unnecessary __63__ the seller has made in making the case. Another message from the proverb is that over-packaging helps cultivate an __64__ consuming attitude - to buy fancy-looking stuff but not what they really need.

50.¡¡ A. enormous¡¡¡¡¡¡¡¡¡¡ B. available ¡¡¡¡¡¡¡¡¡¡ C. invisible ¡¡¡¡¡¡¡¡¡¡ D. illegal

51.¡¡ A. results from¡¡¡¡¡¡ B. contributes to¡¡¡¡ C. depends on ¡¡¡¡¡¡ D. calls for

52.¡¡ A. predicted¡¡¡¡¡¡¡¡¡¡ B. required¡¡¡¡¡¡¡¡¡¡¡¡ C. acknowledged¡¡¡¡ D. estimated

53.¡¡ A. look¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. hold¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ C. make¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D. add

54.¡¡ A. However¡¡¡¡¡¡¡¡¡¡ B. Therefore¡¡¡¡¡¡¡¡¡¡ C. Otherwise¡¡¡¡¡¡¡¡¡¡ D. Furthermore

55.¡¡ A. observed¡¡¡¡¡¡¡¡¡¡ B. broken¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ C. adopted¡¡¡¡¡¡¡¡¡¡¡¡ D. forbidden

56¡¡¡¡ A. better¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. more expensive¡¡ C. cheaper¡¡¡¡¡¡¡¡¡¡¡¡ D. more useful

57.¡¡ A. recommend¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. praise¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ C. consider¡¡¡¡¡¡¡¡¡¡¡¡ D. criticize

58.¡¡ A. popular¡¡¡¡¡¡¡¡¡¡¡¡ B. impressive¡¡¡¡¡¡¡¡ C. unattractive¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D. qualified

59.¡¡ A. ridiculous¡¡¡¡¡¡¡¡¡¡ B. incredible¡¡¡¡¡¡¡¡¡¡ C. unnecessary¡¡¡¡¡¡ D. reasonable

60.¡¡ A. accustomed¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. appealing¡¡¡¡¡¡¡¡¡¡ C. similar¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D. grateful

61.¡¡ A. former¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. next¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ C. other¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D. latter¡¡

62.¡¡ A. judgment¡¡¡¡¡¡¡¡¡¡ B. eyesight¡¡¡¡¡¡¡¡¡¡¡¡ C. appetite¡¡¡¡¡¡¡¡¡¡¡¡ D. health

63.¡¡ A. contributions¡¡¡¡ B. efforts¡¡¡¡¡¡¡¡¡¡¡¡¡¡ C. progress¡¡¡¡¡¡¡¡¡¡¡¡ D. use

64.¡¡ A. unfamiliar¡¡¡¡¡¡¡¡ B. unhealthy¡¡¡¡¡¡¡¡¡¡ C. unnatural¡¡¡¡¡¡¡¡¡¡ D. unavoidable

Section B

Directions: Read the following four passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C and D. Choose the one that fits best according to the information given in the passage you have just read.¡¡

(A)

Company: Embassy Suites
Location: US-CA-San Luis Obispo
Employee Type: Full-Time/Part-Time
Job Type: Receptionist
Req¡¯d Education: High School
Req¡¯d Experience: Less Than 1 Year

Contact Information

Contact: Rebecca Hyer
Phone: 805.549.0800
Email: Rebecca@
Fax: Not Available

DESCRIPTION

©~Embassy Suites Hotel San Luis is currently accepting applications for Front Desk Services Agent. Full time day and part time night positions open.

©~Availability must include weekends and holidays.

©~This position has a combination of duties mainly related, but not limited to checking-in hotel guests.

©~We are seeking candidates who have the ability to:

©~Understand guest inquires and provide responses in a helpful, courteous(ÀñòµÄ) manner.

©~Promote positive relations with all individuals who approach the Front Desk and enter the hotel.

©~Focus on the guest needs remaining calm and courteous.

©~Work well under pressure.¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡

©~Input and access data in the computer.

©~Ensure security and confidentiality of guest and hotel information.

©~Work cooperatively with other departments and co-workers as part of a team.

REQUIREMENTS

Customer service experience preferred.

Please apply online by submitting a resume, including a cover letter.

OR:¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡

Apply in person, by submitting an application for employment, from the executive offices located within the hotel.

65. Which of the following best describes the job advertised?

¡¡ A. Technical Engineer.¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. Door Man.

¡¡ C. Reservation Officer.¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D. Front Desk Services Agent.

66. Those interested in this job may contact Rebecca Hyer ______.

¡¡ A. by e-mail¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ ¡¡¡¡ B. by fax

¡¡ C. by sending short messages¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ D. by post

67. Which of the following is needed for the job?

¡¡ A. College diploma or above.¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ B. Necessary PC skills.

¡¡ C. Speaking at least three languages.¡¡¡¡¡¡ D. Five-year working experience.

40. The behavior of gases is explained by _______the kinetic (Ô˶¯µÄ) theory.

¡¡ A. what do scientists call¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ ¡¡¡¡¡¡ ¡¡ B. which it scientists call

¡¡ C. scientists call it¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ ¡¡ D. what scientists call

Section B

Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.

A. recently¡¡¡¡¡¡ B. affects¡¡¡¡¡¡ C. pattern¡¡¡¡¡¡ D. varied¡¡ E. floats
F. warm¡¡¡¡¡¡¡¡ G. regularly¡¡¡¡ H. mysterious¡¡ I. effect¡¡¡¡ J. evidence

Big climate changes in the last million years might have come from something very small: dust from outer space.

¡¡ Earth changes between ice ages and warm periods in a(n) __41__ that includes several cycles, including a __42__ one that lasts 100,000 years. Scientists __43__suggested this cycle might be due to changes in the inflow of cosmic(ÓîÖæ) dust.

¡¡ The idea is that Earth __44__above and below the imaginary plane that runs through the sun and Jupiter(ľÐÇ), completing a cycle every 100,000 years. So maybe it encounters __45__varying amounts of dust during each cycle that produce the climate trend.

¡¡ Now there is some __46__, from ancient cosmic dust recovered in ocean-floor drilling near the Azores islands west of Portugal. The large quantity of the dust rises and falls with a wonderful 100,000 year cycle during the period analyzed, 253,000 years to 458,000 years ago. Periods of more dust are related to__47__ climates.

¡¡ But that is a long way from showing that the dust __48__ climate. Some scientists argue that it is not clear how cosmic dust would make the climate warmer while dust from volcanoes is known to make it cooler. They say the cosmic dust is so thin that it is hard to see how it could have any climate__49__.

¡¡ Nevertheless, the new study shows scientists have to take the cosmic dust idea seriously.

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