Rabu, 29 April 2015

READING AND STRUCTURE


TOEFL Reading Test Structure
In the reading section of the TOEFL you are being tested on your ability to understand texts found in an academic setting. This means that you must have a large vocabulary and the capacity to understand complex ideas. Let's take a closer look at the TOEFL reading test structure and contents of the test, a test sample and some extra strategies and tips to help you improve.

Test Structure
This section of the TOEFL will provide you with 3 - 5 texts of about 700 words. There are about 12 -14 questions per text for you to answer. The test is 60 to 100 minutes in length.

Reading Content
The content of the texts are comprised of arguments, expositions and historical subjects. All of the texts are academic and so you should expect to read about things that one comes across at the college and university level. You do not need to have a background in history, science or any other subject. All the information you need to answer the questions properly is provided for you.

Question Types
You will read texts and be asked to look for the main idea in them. You need not know every vocabulary word in the texts. You will see words that you do not know but these definitions are often given to you in a helpful glossary. You are expected to be able to do the following:
• Read a text and learn from it
• Read a text and understand it in a general way
• Read a text and locate specific information and facts

Test Sample
The very best way to relax about this section of the test is to have a look at a sample of the exam itself. This way you will know what to expect.
Reading Section

Directions: These sample questions in the Reading section measure your ability to understand academic passages in English. You will read one passage and answer questions about it. In a real test, you would have 20 minutes to read the passage and answer the questions. Candidates with disabilities may request a time extension.



  Meteorite Impact and Dinosaur Extinction

There is increasing evidence that the impacts of meteorites have had important effects on Earth, particularly in the field of biological evolution. Such impacts continue to pose a natural hazard to life on Earth. Twice in the twentieth century, large meteorite objects are known to have collided with Earth.
 
If an impact is large enough, it can disturb the environment of the entire Earth and cause an ecological catastrophe. The best-documented such impact took place 65 million years ago at the end of the Cretaceous period of geological history. This break in Earth’s history is marked by a mass extinction, when as many as half the species on the plane became extinct. While there are a dozen or more mass extinctions in the geological record, the Cretaceous mass extinction has always intrigued paleontologists because it marks the end of the age of the dinosaurs. For tens of millions of years, those great creatures had flourished. Then, suddenly, they disappeared.
 
The body that impacted Earth at the end of the Cretaceous period was a meteorite with a mass of more than a trillion tons and a diameter of at least 10 kilometers. Scientists first identified this impact in 1980 from the worldwide layer of sediment deposited from the dust cloud that enveloped the planet after the impact. This sediment layer is enriched in the rare metal iridium and other elements that are relatively abundant in a meteorite but very rare in the crust of Earth. Even diluted by the terrestrial material excavated from the crater, this component of meteorites is easily identified. By 1990 geologists had located the impact site itself in the Yucatán region of Mexico. The crater, now deeply buried in sediment, was originally about 200 kilometers in diameter.

This impact released an enormous amount of energy, excavating a crater about twice as large as the lunar crater Tycho. The explosion lifted about 100 trillion tons of dust into the atmosphere, as can be determined by measuring the thickness of the sediment layer formed when this dust settled to the surface. Such a quantity of material would have blocked the sunlight completely from reaching the surface, plunging Earth into a period of cold and darkness that lasted at least several months. The explosion is also calculated to have produced vast quantities of nitric acid and melted rock that sprayed out over much of Earth, starting widespread fires that must have consumed most terrestrial forests and grassland. Presumably, those environmental disasters could have been responsible for the mass extinction, including the death of the dinosaurs.

Several other mass extinctions in the geological record have been tentatively identified with large impacts, but none is so dramatic as the Cretaceous event. But even without such specific documentation, it is clear that impacts of this size do occur and that their results can be catastrophic. What is a catastrophe for one group of living things, however, may create opportunities for another group. Following each mass extinction, there is a sudden evolutionary burst as new species develop to fill the ecological niches opened by the event.

Impacts by meteorites represent one mechanism that could cause global catastrophes and seriously influence the evolution of life all over the planet. According to some estimates, the majority of all extinctions of species may be due to such impacts. Such a perspective fundamentally changes our view of biological evolution. The standard criterion for the survival of a species is its success in competing with other species and adapting to slowly changing environments. Yet an equally important criterion is the ability of a species to survive random global ecological catastrophes due to impacts.

Earth is a target in a cosmic shooting gallery, subject to random violent events that were unsuspected a few decades ago. In 1991 the United States Congress asked NASA to investigate the hazard posed today by large impacts on Earth. The group conducting the study concluded from a detailed analysis that impacts from meteorites can indeed be hazardous. Although there is always some risk that a large impact could occur, careful study shows that this risk is quite small.
 
1. The word “pose” on line 2 is closest in meaning to
    a. claim
    b. model
    c. assume
    d. present

2. In paragraph 2, why does the author include the information that
    dinosaurs had flourished for tens of millions of years and then suddenly
    disappeared?
    a. To support the claim that the mass extinction at the end of the
        Cretaceous is the best-documented of the dozen or so mass
        extinctions in the geological record
    b. To explain why as many as half of the species on Earth at the time
        are believed to have become extinct at the end of the Cretaceous
    c. To explain why paleontologists have always been intrigued by the
        mass extinction at the end of the Cretaceous
    d. To provide evidence that an impact can be large enough to disturb
        the environment of the entire planet and cause an ecological
        disaster

3. Which of the following can be inferred from paragraph 3 about the
    location of the meteorite impact in Mexico?
    a. The location of the impact site in Mexico was kept secret by
        geologists from 1980 to 1990.
    b. It was a well-known fact that the impact had occurred in the
        Yucatán region.
    c. Geologists knew that there had been an impact before they knew
        where it had occurred.
    d. The Yucatán region was chosen by geologists as the most probable
        impact site because of its climate.

4. According to paragraph 3, how did scientists determine that a large
    meteorite had impacted Earth?
    a. They discovered a large crater in the Yucatán region of Mexico.
    b. They found a unique layer of sediment worldwide.
    c. They were alerted by archaeologists who had been excavating in
        the Yucatán region.
    d. They located a meteorite with a mass of over a trillion tons.

5. The word “excavating” on line 25 is closest in meaning to
    a. digging out
    b. extending
    c. destroying
    d. covering up

6. The word “consumed” on line 32 is closest in meaning to
    a. changed
    b. exposed
    c. destroyed
    d. covered

7. According to paragraph 4, all of the following statements are true of
    the impact at the end of the Cretaceous period EXCEPT:
    a. A large amount of dust blocked sunlight from Earth.
    b. Earth became cold and dark for several months.
    c. New elements were formed in Earth’s crust.
    d. Large quantities of nitric acid were produced.

8. The phrase “tentatively identified” on line 36 is closest in
    meaning to
    a. identified after careful study
    b. identified without certainty
    c. occasionally identified
    d. easily identified

9. The word “perspective” on line 46 is closest in meaning to
    a. sense of values
    b. point of view
    c. calculation
    d. complication

10. Paragraph 6 supports which of the following statements about the
      factors that are essential for the survival of a species?
      a. The most important factor for the survival of a species is its
          ability to compete and adapt to gradual changes in its
          environment.
      b. The ability of a species to compete and adapt to a gradually
          changing environment is not the only ability that is essential for
          survival.
      c. Since most extinctions of species are due to major meteorite
          impacts, the ability to survive such impacts is the most
          important factor for the survival of a species.
      d. The factors that are most important for the survival of a species
          vary significantly from one species to another.

11. Which of the sentences below best expresses the essential information in the
      following sentence?
      Earth is a target in a cosmic shooting gallery, subject to random violent
      events that were unsuspected a few decades ago.
      Incorrect choices change the meaning in important ways or leave out essential
      information.
      a. Until recently, nobody realized that Earth is exposed to
          unpredictable violent impacts from space.
      b. In the last few decades, the risk of a random violent impact from
          space has increased.
      c. Since most violent events on Earth occur randomly, nobody can
          predict when or where they will happen.
      d. A few decades ago, Earth became the target of random violent
         events originating in outer space.

12. According to the passage, who conducted investigations about the
      current dangers posed by large meteorite impacts on Earth?
      a. Paleontologists
      b. Geologists
      c. The United States Congress
      d. NASA

13. Look at the four letters (A, B, C, and D) that indicate where the
      following sentence could be added to the passage in paragraph 6.
      This is the criterion emphasized by Darwin’s theory of
      evolution by natural selection.
      Where would the sentence best fit?
      Impacts by meteorites represent one mechanism that could cause
      global catastrophes and seriously influence the evolution of life all
      over the planet. (A) According to some estimates, the majority of all
      extinctions of species may be due to such impacts. (B) Such a
      perspective fundamentally changes our view of biological evolution.
      (C) The standard criterion for the survival of a species is its success
      in competing with other species and adapting to slowly changing
      environments. (D) Yet an equally important criterion is the ability of
      a species to survive random global ecological catastrophes due to
      impacts.
      Choose the place where the sentence fits best.
      a. Option A
      b. Option B
      c. Option C
      d. Option D

14. An introductory sentence for a brief summary of the passage is
     provided below. Complete the summary by selecting the THREE
     answer choices that express the most important ideas in the passage.
     Some sentences do not belong in the summary because they express
     ideas that are not presented in the passage or are minor ideas in the
     passage. This question is worth 2 points.
     Write your answer choices in the spaces where they belong. You can
     write in the number of the answer choice or the whole sentence.
     Scientists have linked the mass extinction at the end of the Cretaceous with a
     meteorite impact on Earth.
     •
     •
     •
     Answer choices
     (1) Scientists had believed for centuries that meteorite activity influenced
           evolution on Earth.
     (2) The site of the large meteorite impact at the end of the Cretaceous
           period was identified in 1990.
     (3) There have also been large meteorite impacts on the surface of the
           Moon, leaving craters like Tycho.
     (4) An iridium-enriched sediment layer and a large impact crater in the
           Yucatán provide evidence that a large meteorite struck Earth about
           65 million years ago.
     (5) Large meteorite impacts, such as one at the end of the Cretaceous
           period, can seriously affect climate, ecological niches, plants, and
           animals.
     (6) Meteorite impacts can be advantageous for some species, which
           thrive, and disastrous for other species, which become extinct.


Key to Reading Section:
1. d
2. c
3. c
4. b
5. a
6. c
7. c
8. b
9. b
10. b
11. a
12. d
13. d
14. 4,5,6

Reading Strategies
To prepare for this test section you should read often, read about many subjects and use a vocabulary journal to keep track of your new words. It is really important to read topics like the news, science, geography, and  politics. Ensure the level of English is advanced.

Vocabulary improvement is essential for mastering the TOEFL and doing well in English at the academic and professional level. The formal English one encounters at university is mirrored in TOEFL texts. As such, you will need to keep track of new words and phrases, study them, remember them and most importantly: use them.
This may seem like a lot of work but a personal vocabulary journal allows you to learn words, keep track of them and use them in a time efficient and organised manner.

What is a personal vocabulary journal?

A personal vocabulary journal is a notebook used to keep track of new words and phrases for students studying TOEFL and English. It is also a self-study tool and when used correctly allows the student to learn new words each day through revision and practice. The journal is a technique that can be applied to TOEFL preparation to greatly improve one's memory for many new words. Using this journal does not require more than 15 minutes of study each day.

How should I organize my journal?

Organize each page of the journal in numerical order. Divide the page into 4 columns. Use a chart on each page. Your page should look like this:
New Word Definition Definition in your native language A sentence using the word
1
2
3

What is the best way to use my journal?

• Each day, write down 3 to 7 new words in your journal. Do not add more than about 7 word because this will be too many to learn and remember.
• At the end of your day when you are preparing homework for the TOEFL, spend 10 to 15 minutes completing the chart.
• Review and study all the old words on your list and complete the new ones. In this way you will study the list on a daily basis and remember them!
• You will notice that after one month you have a large list of words. Also, you will see that by the end of the month that you have studied the first words you entered for about 30 days, the second words you added for about 29 days and so on for the rest of the list.
What you are doing here is studying new words and phrases each day for a short period of time and reviewing them over and over again. You will master your knowledge of your list easily this way!

Quick Tips
• Ensure that you take practice tests. Get them marked by a teacher. Find out what your score is as soon as possible. Compare this score to the score you need to get on the real TOEFL test.
• If you get a  low score on the test then ask your teacher for suggestions about what to read.
• Reading books, magazines, and news sites online like The New York Times, The Washington Post, and The Guardian are a good start.
• Go to the library and ask a librarian to suggest books for you to read. Good luck!

sumber:
- https://benchprep.com/blog/toefl-reading-test-structure-content-and-samples/
- https://benchprep.com/blog/toefl-study-tips-no-1-your-personal-vocabulary-journal/