Tiêu đề TỜ SỐ 22 TEST 03 UNIT 5 INVENTIONS.docx ✅

d. The small penicillin glass vials, originally invented to contain medicine, became a special form of “creativity” during the war. e. This simple yet meaningful idea turned the vials into sacred “memory capsules,” helping comrades and later generations to recognize the places where people had fallen. A. d – e – a – c – b B. d – a – e – c – b C. c – b – d – a – e D. c – d – a – e – b Question 17: a. Through natural biochemical reactions, these devices can generate electricity that is clean, renewable, and much safer for the environment than traditional batteries. b. The invention of bio – batteries has introduced a creative and sustainable way to produce energy by using living organisms or organic materials. c. Because they are biodegradable and reduce toxic waste, bio – batteries also represent an important step toward solving global problems related to pollution and electronic waste. d. Scientists see great potential in applying bio – batteries to power medical implants, wearable devices, and other small electronics that require reliable energy sources. e. Although still under development, this invention clearly shows how combining biology with technology can reshape the future of energy in modern society. A. d – b – a – c – e B. b – a – d – c – e C. a – e – c – b – d D. c – b – e – a – d Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 18 to 22. WANT IT? PRINT IT! The wheel on your little brother’s favourite toy car has broken, and he’s very upset. You’re not worried, though. You just take some pictures, load them into your 3D printer, and in no time, the new part is sitting in your hand. 3D printers are machines that print objects. Believe it or not, the first 3D printer was invented way back in 1984, and in 1993, the first 3D – printing company was set up! (18) ____________. 3D printers work in a similar way to the old computer printer, (19) ____________. Instead of ink, however, 3D printers shoot plastic, metal, wax, or another material that hardens instantly. (20) ____________. People are using their 3D printers to make any object you can imagine, from jewellery to beautiful ornaments. (21) ____________. But 3D printers can have a more serious use—one that might save your life! Doctors are using them to create medical implants, for example, bones and joints that exactly match patients. This makes surgery easier and recovery faster. 3D printers are improving all the time and (22) ____________. And soon, who knows—you might be able to print one yourself. Question 18: A. Over half a million 3D printers were sold in 2018, which made them compact and affordable enough for almost anyone to own one since 2004. B. Having become affordable and compact since 2004, over half a million 3D printers were sold in 2018, allowing almost anyone to own one. C. Since 2004, 3D printers have become affordable and compact enough for widespread ownership, leading to over half a million units being sold in 2018. D. The price and size of 3D printers have reached a point since 2004 where almost anyone can own one, and more than half a million were sold in 2018. Question 19: A. once found in homes and offices where documents were printed on a daily basis B. that was typically connected to a large and bulky desktop computer C. produced lines of text as a moving print head passed back and forth across the page D. which shot tiny jets of ink onto paper to make words Question 20: A. By adding thousands of layers, the 3D shape is slowly made