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Third Term Scientific English exam

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Third Term Scientific English exam

مُساهمة من طرف Oum Med في 16.05.14 20:33

 
الجمهورية الجزائرية الديمقراطية الشعبية
زارة التربية الوطنية                                                                                                                          ثانوية كريتلي مختار
امتحان البكالوريا التجريبي                                                                                                                               ماي 2014
الشعب:علوم تجريبية.رياضيات.تقني رياضي.تسيير واقتصاد
 اختبار في مادة: اللغة الانجليزية                                                                                                          المدة :ساعتان و نصف
على المترشح أن يختار احد الموضوعين التاليين :
الموضوع الأول
(PART ONE: Reading                                                                                                                                                                                                                                                                           (15 pts
(A/ Comprehension                                                                                                                                                                                                                                                                                (08
Read the text carefully then do the following activities.
        A radical change from our peaceful night sky, Cosmic Collisions presents the spectacular result of gravity pulling together planets, stars, and galaxies. Here are explosive encounters that ended the age of the dinosaurs and gave birth to new stars, but also created conditions essential for life on earth.
      People have been worrying about cosmic collisions for a long time, but the field only gained scientific legitimacy in the 1980s when the extinction of the dinosaurs was pinned on a single strike of a comet or asteroid.
       Now we have the assertion, based on a computer simulation by Australian engineer Michael Paine, that during the last 10,000 years, Earth was hit about 350 times by asteroids as large as the rock that wasted 2,000 square kilometers of Siberian forest in 1908.  That year an asteroid estimated at 50 meters across exploded above Tunguska, Siberia, blowing down trees across 2,000 square kilometers and killing a thousand reindeer, but apparently no people. The shock wave from the blast would have measured 5.0 on the Richter scale. An explosion of this magnitude would be capable of destroying a large metropolitan area, but due to the remoteness of the location no fatalities were documented. Because the stony object exploded in the atmosphere, there's no crater.
     According to the simulation, during the next 10,000 years, cosmic junk could kill 13 million people, and perhaps cause wars, famines and general-purpose chaos.
Wikipedia, the free encyclopedia
1.       Circle the letter which corresponds to the right answer.
The text is:  a. descriptive.                    b. expository.                   c. prescriptive.
 
2.      Are these statements true or false? Write T or F next to the letter corresponding to the statement.
a.       Cosmic Collisions are due to gravity pulling together celestial objects.
b.      Cosmic collisions gained scientific credibility in the sixties.
c.      The explosion of an asteroid above Siberia caused no fatalities because of its farness.
d.      According to the presentation cosmic junks could cause different disasters.
 
3.      Answer the following questions according to the text.
a.      What created essential conditions for life on earth?
b.      How many times was Earth hit during the last 10,000 years?
c.      Did the explosion of the asteroid above Siberia cause a crater?
d.       What possible consequences could occur during the next 10,000 years?
4.      Choose the main idea of the text.
a) The cosmic collision simulation.
b) The consequences of cosmic junks.
c) The extinction of dinosaurs.
5.      What or who do the underlined words refer to in the text?
a.      The field(§2)                            b. this magnitude(§3)
B/ Text Exploration
 
1.      Find in the text words whose definitions fellow. 
a.      violent and unexpected meetings (§1)
b.      of or relating to the regions of the universe distinct from the Earth (§2)
c.       devastated or destroyed, ruined (§3)
d.      the remains of something that has been destroyed or broken up (§4)
 
2.      Complete the chart as shown in the example.
Verb
Noun
Adjective
To create
creation
creative
……………
collision
………………….
To measure
………
………………….
…………
………
explosive
3.      Rewrite sentence (b) so that it means the same as sentence (a).
1.      a. Earth was hit about 350 times by asteroids.
b. Asteroids……………………………………………………………………
      2.   a. Due to the remoteness of the location no fatalities were documented.
            b. Since……………………………………………………………………….
      3.   a. Michael Paine said, “If we get hit 20 years from now, that is not bad luck. That is stupidity.”
            b. Michael Paine said that……………………………………………………………………
 
4.      Classify the following words according to the pronunciation of their final “ed”
                               “created, gained, shocked, exploded”
/d/
/id/
/t/
   
5.      Reorder the following sentences into a coherent paragraph.
a.      there would be earthquakes and hurricanes 
b.     If an asteroid hits on land,
c.      If it hits in water,
d.     with a huge amount of dust thrown up into the atmosphere.
e.      there would be  tsunamis and an increase in water vapor in the atmosphere.
         PART TWO: Written Expression
                                Choose ONE of the following topics                                                                         (05 pts)
   Topic one: Using the notes below, write a composition of 120 to 150 words to describe the asteroid “Lutetia”.
-        Lutetia : the Latin name for Paris.
-         official name is "21 Lutetia" / it was the 21st asteroid discovered /in 1852/ in Paris
-        Diameter: about 96 km / medium-size
-        Shape: not a perfect sphere
-        Materials: 70% metal, 30% rocks
-        orbits the Sun / the main asteroid belt between the planets Mars and Jupiter 
 Topic Two: Some people think that the budget devoted to space exploration is wasted money.
                      Write a composition of 120 to 150 words refuting (Proving a statement to be wrong or false) the  
                       statement above.
     
          
الجمهورية الجزائرية الديمقراطية الشعبية
وزارة التربية الوطنية                                                                                                                          ثانوية كريتلي مختار
امتحان البكالوريا التجريبي                                                                                                                               ماي 2014
الشعب:علوم تجريبية.رياضيات.تقني رياضي.تسيير واقتصاد
 اختبار في مادة: اللغة الانجليزية                                                                                                          المدة :ساعتان و نصف
على المترشح أن يختار احد الموضوعين التاليين :
الموضوع الثاني
PART ONE: Reading                                                                                                                                           (15 pts)
A/ Comprehension                                                                                                                                          (08 pts)
Read the text carefully then do the following activities.
      GMO stands for genetically modified organism. This type of food isn't natural or organic since its genes have been artificially manipulated or added with genes from other species.
      For the past few decades, biotech companies have been exploiting nature by mixing the genes of many different species. One of their goals is to create GMO foods that are more superior than non-GMOs. They believe that GMO foods are the answers to food shortages since they are more resistant. In some ways, biotech companies are right, but the problem is that they aren't being totally honest about how their GMO foods affect our health and environment.
    If GMO foods are created in harmony with nature, they can help change the world into a better place. Unfortunately, the current techniques used by scientists to create genetically modified organisms are destructive to nature. Modern scientists can barely understand how gene works. Their ignorance combined with corporate greed is one of the main reasons why our health and environment are slowly being destroyed by GMO foods.
     Studies done on GMO foods have revealed that they cause serious health problems in animals. Many of these animals died from birth defects, immune disorders, digestive problems, premature aging and cancer. Some of these animals even became sterile and therefore they couldn't have offspring. The most dangerous feature of genetically modified foods is their ability to cause damages to genes, which can lead to unforeseen consequences.
www. Discovery.com
1.      Circle the letter which corresponds to the right answer.
The text is:  a. a newspaper article.                    b. an extract from a book.                   c. a web site article.
 
2.      Are these statements true or false? Write T or F next to the letter corresponding to the statement.
a.      GMO foods are natural.
b.      One of biotech companies’ goals is the creation of GMO foods that are less superior than non-GMOs.
c.      The current techniques used by scientists to create genetically modified organisms are damaging to nature.
d.      GMO foods can lead to unexpected consequences.
 
3.      Answer the following questions according to the text.
a.      Why are not GMO Foods natural?
b.      What do biotech companies believe about GMO foods?
c.      Are the current techniques used by scientists constructive?
d.      State four of the health problems caused by GMO foods?
 
4.      In which paragraph it is mentioned that Genetically Modified Foods are not safe?
 
5.      What or who do the underlined words refer to in the text?
a. its(§1)                        b. their(§2)             c. which(§4)
 
B/ Text Exploration
 
1.      Find in the text words that are closest to the following. 
a.      kinds (§1)
b.      trustworthy (§2)
c.      infertile (§4)
 
2.      Divide the following words into roots and affixes.
     Destructive- ignorance-premature-disorder
Prefix
root
suffix
 
 
 
3.      Ask questions which the underlined words answer.
 
a.GMO stands for genetically modified organisms.
b. Many of these animals died from birth defects.
c.This type of food isn’t organic
 
4.      Classify the following words according to the number of their syllables.
                               “harmony, genes, decades, environment”
One syllable
Two syllable
Three syllables and more
   
5.      Imagine what A says and complete the following dialogue.
A: ……………………………………………….
B:  Genetic engineering is the modification of organism’s genes using biotechnology.
A: ……………………………………………….
B:  The manipulation occurs in laboratories.
A: ……………………………………………….
B: The first organisms to be genetically modified are bacteria.
.A: ……………………………………………….
B: It happened in 1973
 
         PART TWO: Written Expression
                                Choose ONE of the following topics                                                                         (05 pts)
      Topic one: Write a composition of 120 to 150 words on the following topic.
                  You have been asked to write an article for your school magazine about the benefits and the drawbacks of    
                   GMO foods.  You may use the following notes.
                    Crops that have been modified: maize, potato, soybean
                    Benefits:  Better quality food / inexpensive and nutritious food/ food with medical benefits.
                    Drawbacks: Toxicity / tendency to provoke allergic reactions/ stability of the inserted genes.
    Topic Two: Write a composition of 120 to 150 words on the following topic.
                     Food safety is a major issue in our life.
                    s a well informed citizen, what daily precaution should you take to stay healthy and avoid the risk of A    

                     contamination from the various products you consume?

Oum Med



العُــمـــْـــــر : 40
البلد/ المدينة : Blida
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نقاط التميز : 10
شكر خاص : 0
التَـــسْجِيلْ : 05/05/2014

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