Listen and Discuss - Mega goal 1 - أول ثانوي

11 If It Hadn't Happened 1 Listen and Discuss رابط الدرس الرقمي www.ien.edu.sa 1. Look at the pictures and write as many words as you can think of for each. 2. Read each paragraph and underline the words that name something in the picture. Looking Back Inventions and Discoveries That Changed History We often wonder if things might or could have been different. Would the world be a better place? What are the advantages or disadvantages of different inventions? Electricity If electricity hadn't been discovered, people would probably still be using candles or gaslights. Thomas Edison developed the first incandescent electric light bulb in 1879. وز166 عليم The Wheel If the Sumerians hadn't invented the wheel in 5000 B.C.E., they couldn't have moved heavy loads. Six thousand years later, the Mayans and Incans in the Americas used the round shape in their architecture, but they had no wheels. Airplanes ▲ If the Wright brothers hadn't invented the first successful airplane, people might still be traveling long distances on ships, and there wouldn't be as much contact among people on different continents. The Wright brothers first flew in an engine-propelled plane in 1903. Oil▲ If people hadn't discovered a lot of sources of oil, cars that run on gasoline wouldn't have become so common. The first commercial oil well drilled in North America was in Oil Springs, Ontario, Canada in 1858. Computers ▸ If we didn't have computers, a lot of work would still be done with paper and pencil, and people in their homes wouldn't be able to be in contact with the entire world. The first PC was introduced by IBM in 1981. Penicillin If Dr. Alexander Fleming hadn't discovered penicillin in 1928, millions of people would have died from infections. However, the widespread use of penicillin as an antibiotic did not begin until the 1940s, during World War II. Ministry of Education 2024-1446 MG_01_COMBO_TEXT_2024.indb 166 30/4/24 2:04 AM

O Life's Regrets At one time or another, we all look back and wish we had done things differently in our lives. The following are some typical situations. Mark the ones you've said or done. Discuss with a partner. 1. If I'd studied harder, I would have passed that test. 2. I should have said what I thought about her hairstyle, but I didn't want to hurt her feelings. 3. I should have bought that thing last year; now 4. prices have gone up. If I had been more careful, I would have avoided the accident. 5. I should have told the security guard that I saw someone breaking the lock. 6. If I'd known the trip was going to take so long, I would have taken another route. 7. Other after-thoughts? I wish I'd been a better student. I should have listened to my mother and gone to college. I could have had an office job. Quick Check ✓ A. Vocabulary. Match to form new words. and expressions. a. guard 1. oil 2. heavy b. style 3. hair c. load 4. electric d. bulb 5. security e. well B. Comprehension. Answer true or false. 1. The Sumerians couldn't have carried heavy loads without the wheel. If it weren't for Fleming, many people would 2. I have died from infections. 3. If it hadn't been for candles, there wouldn't be any electricity. 4. 5. People would still be traveling on ships if it. weren't for airplanes. The man who is unloading the truck should have studied harder. 2 Pair Work A. Ask and answer. What is your biggest regret? I should have been a more serious student. What would have happened if the Sumerians hadn't invented the wheel? They wouldn't have been able to move heavy loads. What would you have done if you'd seen the thief? I would have called the police immediately. B. If you could go back and do things over, what mistakes would you try to avoid? Write down a list and compare with a partner. وزارة التعليم Ministry of Education 2024-1446 MG_01_COMBO_TEXT_2024.indb 167 167 30/4/24 2:04 AM