❖ National Exam ❖ 2022 β€” Resit Session ❖ Science & Technology ❖

Professor Yazami β€” The Moroccan Father of Lithium Batteries

The story of Rachid Yazami, a Moroccan scientist whose 1980 discovery revolutionised rechargeable batteries used worldwide. Duration: 2 h 30 Β· 40 points.

I

Reading Text

[1] Professor Rachid Yazami's passion for science started when he was a child in his native city, Fez, with a fascination for geology. His academic ambitions soon progressed from analysing rocks to acquiring a doctorate in graphite compounds for lithium batteries in France. In 1980, aged 26, he made a key discovery that led to the development of the lithium-graphite anode, which is used in rechargeable batteries in mobile phones and laptops.

[2] "I still remember the day I opened my battery and saw that graphite had become a gold colour. I converted graphite into gold," he told Rebecca from Inspire Middle East. His professors were very supportive when they realised the importance of his discovery: lithium can be stored in graphite. This was a turning point in battery history.

[3] Despite this scientific achievement, it took more than a decade to commercialise the lithium battery. For some reason, the French government didn't consider the invention of graphite as a major invention. So, Yazami did not get a copyright, which means that it could be used for free by other companies. Today, around 95% of batteries produced globally use Yazami's technology. Worldwide, analysts think that the commercial lithium battery market is worth about $80 billion.

[4] In his battery research, Yazami is exploring the capabilities of artificial intelligence for ameliorating the quality of people's lives. He is working on a technique that will allow an electric car battery to last for up to ten years instead of five years now. Moreover, the battery can be charged in 10 minutes β€” the same time we spend at the gas station when we fill our car tank.

[5] Yazami has won many awards, including the Draper Prize, the equivalent of a Nobel Prize for engineers. Even at the age of 67, he remains dynamic and wholly dedicated to his work. He is currently the Principal Scientist at Nanyang Technological University in Singapore, and is frequently consulted by the business community there.

Adapted from www.euronews.com

II

Comprehension (15 pts)

A. True or False? Justify (3 pts)
  1. Professor Yazami's first interest was lithium batteries. β†’ FALSE. "His passion for science started… with a fascination for geology."
  2. The majority of batteries worldwide use Yazami's technology. β†’ TRUE. "Around 95% of batteries produced globally use Yazami's technology."
  3. Yazami has an important position at Nanyang Technological University. β†’ TRUE. "He is currently the Principal Scientist at Nanyang Technological University in Singapore."
B. Answer the questions (3 pts)
  1. How has Professor Yazami's invention changed the history of batteries? β†’ His discovery that lithium can be stored in graphite was a turning point β€” it led to the development of the lithium-graphite anode used in rechargeable batteries today.
  2. How long did it take the lithium batteries to be on the market? β†’ More than a decade (over ten years).
  3. Why could companies use Yazami's invention for free? β†’ Because Yazami did not get a copyright β€” the French government did not consider the invention as major.
C. Complete the sentences (2 pts)
  1. Thanks to Yazami's technique, electric car batteries will last for up to ten years instead of five, and can be charged in 10 minutes.
  2. Yazami is still active although he is 67 years old.
D. Pick out phrases that show (2 pts)
  1. Yazami was encouraged by his professors. β†’ "His professors were very supportive when they realised the importance of his discovery."
  2. The Draper Prize is a very important prize. β†’ "The Draper Prize, the equivalent of a Nobel Prize for engineers."
E. Synonyms (3 pts)
  1. very important (paragraph 1) β†’ key / major
  2. improving (paragraph 4) β†’ ameliorating
  3. committed (paragraph 5) β†’ dedicated
F. Reference words (2 pts)
  1. it (paragraph 3) β†’ Yazami's invention (the lithium-graphite anode / the graphite invention)
  2. there (paragraph 5) β†’ in Singapore / at Nanyang Technological University
III

Language (15 pts)

A. Word formation (2 pts)
  1. John needed a special medical (treat) treatment after the accident.
  2. Although the story is simple, it teaches important (morality) moral lessons.
B. Fill in with the right words (2 pts)

List: launch Β· cultural Β· strange Β· foreign Β· achieve

  1. Our university will launch a new training programme for its staff.
  2. The new economic reform will attract foreign investment in agriculture.
C. Rewrite the sentences (4 pts)
  1. The book was cheap. Yet it did not sell well. β†’ The book did not sell well in spite of being cheap (its cheap price).
  2. They will clean the room after the party. β†’ The room will be cleaned after the party.
  3. "Did Amina call the doctor?" the neighbour asked. β†’ The neighbour wanted to know if/whether Amina had called the doctor.
  4. The journal rejected Amal's article because she used impolite language. β†’ The journal wouldn't have rejected Amal's article if she hadn't used impolite language.
D. Put the verbs in the correct form (3 pts)
  1. My car (break) broke down three times last week.
  2. We started painting the house yesterday. We (paint) will have painted the living room and the kitchen by tomorrow afternoon.
  3. Many students are interested in (join) joining our yoga club.
E. Match each expression with its function (2 pts)
  • 1. "How do you find the idea of working on Saturdays?" β†’ e. Asking for opinion
  • 2. "Would you mind helping me fix my washing machine?" β†’ d. Making a request
  • 3. "I'll understand better if you give me an example." β†’ b. Asking for clarification
  • 4. "You should get your parents' permission before you travel alone." β†’ c. Giving advice
F. Complete the exchanges (2 pts)
  1. Rachid: "Good news! I've just got my driving licence!" Β· Lisa: "Great news! Let's celebrate it!"
  2. Karim: "What about going to Essaouira this weekend? It's a lovely beach city." Β· Hind: "Good idea! The weather is warm in Essaouira these days."
IV

Writing (10 pts)

Task 1 (4 pts) β€” Things to change at school

Complete the paragraph: "There are many things I would like my school administration to change. First, …"

Sample answer (about 80 words)

There are many things I would like my school administration to change. First, the classrooms are too crowded β€” sometimes we are 40 students in one room, which makes it hard to concentrate. Second, the school library needs more recent books and better internet access. Third, the schedule should leave more time for extracurricular activities such as sports, music and drama. Finally, the cafeteria should offer healthier food at affordable prices. These changes would make our school a much better place.

Task 2 (6 pts) β€” Travelling with friends or family?

Do you prefer to travel with your friends or with your family? Write a short article for a travel blog about your choice. Give your reasons.

Sample article (about 150 words)

Why I Prefer Travelling With My Friends

Travelling is one of life's greatest pleasures, but the question of with whom can completely change the experience. Personally, I prefer travelling with my friends.

First and foremost, friends share the same age, interests and energy. We can stay out late, try new activities, and enjoy a sense of freedom that family trips rarely offer. Secondly, travelling with friends teaches valuable life skills β€” we have to make decisions together, manage our budget and solve unexpected problems as a team.

That said, family trips have their own charm. They are usually more relaxing, better organised and create unforgettable memories with our loved ones.

To sum up, I will always prefer travelling with friends because it brings adventure, independence and shared laughter. However, I deeply value family trips for the warmth and bonding they bring. Each kind of travel has its place in a happy life.