Examen Anglais Baccalauréat Sujet Anglais Filières SCI

from our Solar System and orbits a star that astronomers call our Sun’s cousin. While this star is four percent more massive and ten percent brighter, the distance between it and Kepler 452b is approximately the same as Earth’s distance from the Sun. The planet itself has a radius 60 percent larger than Earth and is suspected to be rocky, with a thick atmosphere and a significant amount of water. Kepler 452b’s host star is 1.5 billion years older than ours, and will give scientists a glimpse into how the Sun’s age will eventually affect Earth. “The increasing energy from its aging sun might be heating the surface and evaporating any oceans. The water vapor would be lost from the planet forever,” said Doug Caldwell, a scientist assigned to the Kepler mission. “Kepler 452b could be experiencing now what the Earth will undergo more than a billion years from now, as the Sun ages and grows brighter.” Adapted from Observer, "Discovery of Habitable Earth- like Planet Announced", July 2015, by Robin Seemangal 1. Choose the letter that corresponds to the right answer. The text is... a. prescriptive b. narrative c. expository 2. Write the letter which best completes the statement. A. Kepler 452b is the most … to our planet. a) different b) remote c) similar B. Kepler 452b would contain the … conditions to support liquid water. a) unusual b) suitable c) unsuitable C. Our Sun’s cousin gives off … light. a) more b) no c) less D. Our star is … kepler 452b host star. a) older than b) younger than c) as old as 3. Answer the following questions according to the text. a. Where is Kepler 452b situated? b. What might be the components of Kepler 452b? c. How can this discovery be beneficial for scientists and humanity? 4. In which paragraph is it mentioned that life may be possible on Kepler 452b? 5. Who or what do the underlined words refer to in the text? a. This planet (§1) b. ours (§2) B/ Text Exploration (07 pts) 1. Find in the text words or phrases that are opposite in meaning to the following: a. unlike (§1) ≠ … b. found (§2) ≠ … 2. Divide the following words into roots and affixes. Disappearance - undergo - aging Prefix Root Suffix 3. Rewrite sentence (b) so that it means the same as sentence (a). 1- a. NASA has confirmed the discovery of Kepler 452b. b. The discovery of Kepler 452b … 2- a. “Kepler 452b could be experiencing now what the Earth will undergo”, says Caldwell. b. Caldwell says that … 3- a. I have a strong desire to set foot on the Moon someday. b. I wish … 4. Classify the following words according to the pronunciation of their final “s”. practices - candidates - stars - travels /s/ /z/ /Iz/ 5. Fill in the gaps with words from the list. astronomical - defined - satellite - moon A satellite can be ... (1)... as any object that orbits around something else. There are ten types including ... (2)... satellites. For example, the ... (3)... orbits around Earth and is thus a natural ... (4)..., but man-made ones are called artificial objects.

Part Two: Written Expression