Chọn đáp án đung (trắc nghiệm) 1. By _____ animals and plants, they design new products to serve humans. A. self-cleaning B. rain-making C. observing D. researching 2. Animals can do many things humans cannot, like flying or staying _____ for a long time. A. inspiration B. underwater C. palm oil D. incubator medical 3. The _____, with its wings and shape imitating those of a bird, is one of the greatest inventions in our history. A. aeroplane B. greenhouse C. lighthouse D. processor 4. The _____, which can travel underwater, imitates a dolphin’s shape. A. greenhouse B. spacesuits C. submarines D. biodiesel oil projects 5. What’s that machine, John? It looks like a _____ but a bit bigger and heavier. A. solar charger B. laptop C. correction pen D. printer 6. It’s used for producing _____ objects similar to the originals. A. generous B. solid C. valuable D. collapsible 7. What’s a 3-D printer used ______? A. with B. in C. of D. for 8. The self-cleaning glass window and the fabric used to make umbrellas are both _____ by the smooth leaves of a lotus plant, with their ability to wash away dirt in the rain. A. inspiration B. inspirational C. inspire D. inspired 9. Velcro is a hook-and-loop fastener, invented after a Swiss engineer _____ how the seeds of a plant clung to his clothing. A. observed B. solar charger C. traffic jams D. rush hours 10.Velcro has gradually become a familiar fastener for shoes, jackets, and even _____. A. greenhouse B. spacesuits C. submarines D. biodiesel oil projects 11.Cloth or material for making clothing, curtains, etc. is closest meaning to _____. A. traffic jams B. fabric C. spacesuits D. earbuds 12.Give someone a desire to do something well is closest meaning to _____. A. donate B. contact C. aid D. inspire