1-12. sorularda, verilen cümleyi uygun şekilde tamamlayan ifadeyi bulunuz.

1.---- , the next step is to bring meaning to the results.

A) Once an experiment is performed
B) Even if the science project was an experiment
C) How a judge will evaluate a project
D) As winners move to higher levels of competition
E) So many small schools hold science fairs

2.It would be said often of Einstein ----.

A) that he was naive about human affairs
B) despite the political situation in Germany
C) although Einstein was regarded warily in Berlin
D) the fact that Einstein was constantly on the move
E) yet Einstein did not waver from his new search

3.Since there was evidence of severely harmful effects from chemical dumps, ---- .

A) most of the waste had been recycled in special centres
B) it is uncertain that they will be able to sort the problem out
C) there might be strong opposition to what they are trying to achieve
D) the government implemented tougher clean-up measures
E) there was a time when people were more conscious

4.----- even when the kinds of organisms in the environment are the same.

A) Some ecosystems may be relatively constant for long periods
B) The natural world is characterized by great beauty
C) Plant and animal populations are not the same in every environment
D) Interactions of the organisms with each other influenced population size
E) The study focuses on the interactions of predators and their prey

5.----- , the yield of raw cotton doubled each decade after 1800.

A) Much as the cotton gin reduces the labour of removing seeds
B) By 1860 approximately one in three Southerners was a slave
C) While Eli Whitney is best remembered as the inventor of the cotton gin D) While America grows three-quarters of the world's supply of cotton
E) After the invention of the cotton gin by Eli Whitney in 1793

6. When we speak of dogs, ----- .

A) the dog family has had a long and interesting history.
B) like cats, dogs possessed shearing teeth
C) there were several different lines of dog evolution
D) we generally think of the more than 100 breeds of domesticated dogs E) the members of the modern dog family have a much more varied diet

7. To beat high-tech crime, such as telecommunication fraud, ---- .

A) companies will have to rely on even more technology
B) there is no way out to stop it
C) the police had decided to release the criminals
D) however, the government has taken many precautions
E) most security measures also involve compromise

8. Because the atmosphere moderates temperatures and screens out dangerous radiation, ---- .

A) air is a mixture of colourless gases
B) it may feel as though air does not have mass
C) the air presses down on us and against us from all sides
D) the Earth is able to support life
E) the atmosphere is divided into layers

9. ----, but its temperature and composition change with time

A) Natural occurrences can cause changes in the composition of the atmosphere
B) The ionosphere reflects some radio waves back to Earth
C) The atmosphere has remained fairly stable for many millions of years
D) Most people live less than 1.6 kilometres above sea level
E) The burning of fossil fuels such as coal and oil releases carbon dioxide

10. ----, fulfilling the last requirement to make the agreement official.

A) In November 2004, Russia ratified the Kyoto Protocol
B) Some nations refused to participate in the Kyoto Protocol
C) The agreement does not place restrictions on developing countries
D) An industrialized nation can earn emission reduction units by cutting its emissions
E) To become official, the Kyoto Protocol had to be ratified by at least 55 countries

11. Besides physically connecting computer and communication devices, ---- .

A) a network system allows a variety of equipment types to transfer information
B) a typical network consists of two or more personal computers
C) wide-area networks connect computers and smaller networks to larger networks
D) the Internet will dramatically transform business as well as society
E) at least half of the world's population will have some form of Internet access by 2010

12. Even if a living thing is not killed, ----- .

A) many rare birds would have been caught for the pet trade
B) taking it from the wild can endanger its species if it is rare
C) some fungi and bacteria could also endanger plants and animals
D) saving habitat was the cornerstone of protecting species
E) Many of them have been taken to zoos or parks and bred there

13-17. sorularda, boş bırakılan yere, parçanın anlam bütünlüğünü sağlamak için getirilebilecek cümleyi bulunuz.

13. When tea is prepared for market, it is graded by size. Large and small, broken and unbroken leaves are mechanically sifted and separated to meet the preferences of buyers, who purchase the tea at auction for companies all over the world. ---- . These packages are tightly sealed before being shipped to tea companies for blending.

A) Then the tea is packed in aluminum-lined, moisture-proof chests or bags
B) Blending is an art that plays an important part in bringing enjoyment to tea drinkers
C) Tea is used as a beverage in practically every country in the world
D) When brewed, green tea has a light green colour and a delicate flavour
E) Certain varieties of tea leaves are better suited for making one or more of the three types of tea

14. In 1936 the first giant panda was exhibited in a zoo outside China. ---- . In the United States, giant pandas can be seen in Washington, D.C., Atlanta, and San Diego. Pandas in captivity are often given double names, following the Chinese custom, to indicate affection.

A) The newborn panda is blind and covered with only a thin all-white coat B) At this time males may become highly aggressive
C) Captive pandas may live beyond 30 years in captivity
D) Today there are more than a dozen pandas in zoos in other countries
E) Males appear to use scent to identify the areas where they live

15. Experimental methods, once limited to the domain of psychologists and considered inapplicable to social research, were eventually applied to the study of groups. By the 1930s, social psychologists Kurt Lewin, Muzafer Sherif, and their colleagues had begun conducting experiments on social interaction. ---- .

A) Research techniques vary depending on the social phenomena studied
B) The European approach favoured broad sociological theory based on philosophical methods
C) Sociologists soon followed their example and set up research laboratories
D) Most specialized research in American sociology still uses the individual as the unit of analysis
E) Research approaches vary from country to country

16. Animals first appeared on Earth about 700 million years ago. ---- . Any animal that lived before the earliest known invention of writing—widely believed by scientists to have been about 5,500 years ago—is considered prehistoric.

A) Most of our information about prehistoric animals comes from fossils
B) Scientists who study prehistoric life are called palaeontologists
C) Animals first appeared on Earth during the Precambrian era
D) Since then they have changed, or evolved, into many different forms
E) Animals developed hard body parts at the start of the Palaeozoic era

17. It took hundreds of years of observation and scientific reasoning to reveal the more complex model of the universe that astronomers hold today. ---- . In reality, our planet and many others orbit around the Sun, which itself is just one of billions of stars in the galaxy we call the Milky Way, one of countless galaxies in a vastly larger universe.

A) Science, together with art, religion, and philosophy, have been called the four major achievements of the human mind
B) Earth, we now know, does not stand at the centre of the universe, or even at the centre of our solar system
C) What science, philosophy, art, and religion all share is an attempt to give "meaning" to the world around us
D) The term "scientific method" refers to a specific set of steps for developing and testing a scientific idea
E) No doubt, humans have been gazing at the stars since prehistoric times

18-22. sorularda, cümleler sırasıyla okunduğunda parçanın anlam bütünlüğünü bozan cümleyi bulunuz.

18. (I) Ants are social insects, that is, they live together in organized communities, or colonies. (II) The population of an ant colony varies depending on the species of ant. (III) Some ants live in colonies that contain only a few members. (IV) Others are part of colonies that contain hundreds, thousands, or even millions of members. (V) The mouth of an ant is a small hole at the front end of the head.

A) I       B) II       C) III       D) IV       E) V

19. (I) No matter what their special field of work, all engineers need a knowledge of mathematics and physics. (II) One of the oldest engineering projects in the world can still be seen in Egypt—the pyramids. (III) Most young people who are interested in becoming engineers begin studying these subjects early in high school. (IV) An interest in mathematics and physics is essential because every engineer must work with these sciences. (V) Students preparing for engineering college should also study computer programming, chemistry, and other science subjects that are offered.

 A) I       B) II       C) III       D) IV       E) V

20. (I) Today, astronomers know that comets are members of the Sun’s family. (II) In the 18th century, astronomers calculated astrophysical laws that predicted they would find an as-yet-unseen planet between Mars and Jupiter. (III) And they eagerly searched the skies for it. (IV) On the night of January 1, 1801, the Italian astronomer Giuseppe Piazzi discovered a small celestial body, which he took to be a planet, in the space between the orbits of Mars and Jupiter. (V) This body, which was later called Ceres, was found to have a diameter of only 1,002 kilometers.

 A) I       B) II       C) III       D) IV       E) V

21. (I) The science of animal taxonomy, or classification, deals with the description and naming of new animal species. (II) Taxonomists also try to define the relationships between known species based on common traits. (III) In the mid-18th century, Swedish scientist Carolus Linnaeus created the basic system of animal classification still used today. (IV) Zoology took another great step when English naturalist Charles Darwin developed his theory of evolution in the mid-19th century. (V) Linnaeus also established binomial nomenclature, a scientific naming system for living things.

 A) I       B) II       C) III       D) IV       E) V

22. (I) Modern ethologists try to puzzle out how animals meet such common challenges as protecting themselves, finding food and mates, and rearing their young. (II) However, most ethologists today do more than just observe animals in the wild. (III) Research in the 1950s made clear that behavior is determined largely by the genes an animal inherits from its parents. (IV) They also try to determine the purpose of different animal behaviours. (V) To do so, they may perform laboratory experiments to find exactly what triggers, or provokes, a particular reaction.

A) I       B) II       C) III       D) IV       E) V

23-27. sorularda, karşılıklı konuşmanın boş bırakılan kısmını tamamlayabilecek ifadeyi bulunuz.

23.
Bill   : I think you are teaching science, aren’t you?
John: Yes, that's right.
Bill  : Can you explain something to me? Why does water boil so quickly here?
John: Because we are in the mountains. ................

A) At this elevation water boils at a lower temperature.
B) Really! I didn't know that.
C) Because water is hotter here.
D) Hımmm, I can't say why it does now. I'll tell you later on.
E) At this elevation water boils at a higher temperature.

24.
John: It says in the newspaper that by the year 2020 scientist will have perfected the computers. That means we won’t have to type when we use them. They will get the commands by words.

Paul  : Oh. That's very nice. .......................

A) We won't have to be typing, will we?
B) We will be using it with typing devices, won't we?
C) We won't have to use computers anymore, will we?
D) We won't have to buy computers, will we?
E) We won’t have to be sitting on a table for hours and hours when we are to write any document

25.
Journalist   : Dr. Jackson. I'd like to ask how daily life will be conducted in a space situation.

Dr. Jackson: Sure. What would you like to know?
Journalist   : First about food ..........................
Dr. Jackson: Neither.

A) Will it it be prepared on board or squeezed out of tubes?
B) Should there be restaurants on board?
C) Must it be prepared on board or squeezed out of tubes?
D) Can it be prepared on board or squeezed out of tubes?
E) Could there be restaurants on board?

26.
Charles : How did you do on your maths test?
Yuvaraj : .......................
Charles : Did you leave it blank?
Yuvaraj : I could kick myself. As soon as you handed in the paper, I remembered the answer.

A) I got a perfect score.
B) I’m so happy! The teacher said I did well.
C) Well, I answered all the questions but I’m not sure if I got them correct.
D) I knew the answers to everything except for the last question.
E) I’m not taking it until Tuesday.

27.
Ivy      : I can't get this to work. I think we’d better do the whole procedure over again.
Arthur : .........................
Ivy      : But then we might get an F.
Arthur: We can ask the teacher if we could present it in the next class hour. 

A) Are you sure we have to do that? It takes such a long time.
B) I don't think we have to do that. We can sort it out.
C) We don't have time to do it over. Class is over in ten minutes.
D) OK then, let's start over.
E) You do that. I don't have enough time.

28-30. soruları, aşağıdaki parçaya uygun biçimde cevaplandırınız.

Each and every day millions of Americans are unknowingly exposing themselves to toxic chemicals. In 1938 the FDA granted the personal care industry the power to regulate itself. Therefore, products can be marketed without government approval of ingredients, regardless of what tests show. The ingredients are easily come by and cheap, so they can help companies make a profit. They are found in toothpaste, soap and many skin products.  There are, in fact, more than 125 ingredients used on the skin suspected of causing cancer. They do this by entering the body through the skin. There are four common chemicals that go into these products, and all of them can be said to have one negative effect of another on the body.  First are fragrances: chemicals that have a good smell, but which have been found to cause dizziness.  Next is color.  Coloring agents have been known to cause irritation of the skin.  Finally, we have sodium lauryl sulfate and diethanolamine, which can weaken the immune system and cause kidney cancer, respectively.   These are commonly found in cleansers that foam.  In order to protect ourselves from the dangers of these chemicals, we must learn to read the labels on home products.

28. Something we can infer about fragrances from the passage is ……

A) they can consist of up to four thousand different chemicals that have powerful odors.
B) they are known to have no side effects
C) the good smell doesn’t mean that the chemical is healthy.
D) they can cause kidney cancer if used too much
E) they have been found to cause chest pains

29. People, according to the passage, are constantly ……

A) coming into contact with dangerous compounds.
B) being fooled into buying products that smell good.
C) attracted to liquid detergents that are bright green or blue.
D) paying lots of money for products that don’t use synthetic coloring agents.
E) demanding that products be tested for cancer causing agents.

30. The writer of the passage explains that cancer might result when ……

A)  we use chemicals that weaken the immune system
B)   we are brushing our teeth with specific types of toothpaste
C)   the chemicals in products enter the body through the skin
D)  people combine fragrances that have been unapproved by the FDA
E)   we inhale the fumes from products containing diethanolamine

31-33. soruları, aşağıdaki parçaya uygun biçimde cevaplandırınız.

Although insects and spiders are related in some ways, they look very different from one another and so are placed in separate classes. Scientists believe that these structural differences indicate that the two classes, Insecta and Arachnida, split from each other early in the evolution of the arthropods. Spiders range in length from less than 0.1 centimetres to more than 10 centimetres. They have two body parts and eight legs. The spider's head and thorax are combined into one body segment, called the cephalothorax, and the abdomen constitutes the second body segment. Each leg has seven segments, and on the tip of the legs of many spiders are two tiny claws. Web weavers use these claws, in addition to their notched hairs, to walk on their webs without sticking to them.

31. The passage tells us that although spiders and insects may be related, ----.

A) they do not feed on the same things
B) scientists do not place them in the same classification
C) they tend not to live in the same habitats
D) spiders are much larger
E) insects have more body segments

32. From the information we are given in the passage we can infer that the size of a spider ----.

A) is dependant upon the habitat of the spider
B) has increased with the progress of evolution
C) is always between 0.1 centimetres and 10 centimetres
D) can vary greatly between types of spider
E) is important when spinning webs

33. It is clear from reading the text that the spider’s body ----.

A) has 2 main segments
B) has 7 leg segments
C) has a tip with 2 small claws
D) consists of a thorax a head and 8 legs
E) allows them to walk on webs easily