The benefits of good posture.mp4 Gap-filling Task. Listen and write ONE word for each gap. Key Words: slouch: stand, sit or move in a lazy way,often not quite upright optimal: most desirable inhibited: unable to relax in a natural way dysfunctional: not working normally or properly impair: weaken or damage inflict: to make sb/sth suffer sth unpleasant ligament: tough flexible tissue in a person's or an animal's body that connects bones and holds organs in position scoliosis: a condition in which the spine is curved in a way that is not normal vertebra: any one of the segments of the backbone align: place or arrange (a thing or things)in a straight line symmetrically: having two halves, parts or sides that are the same in size and shape This video is about the importance of posture.Your posture, the way you (1) __________your body is the foundation for every(2) __________ your body makes, and can determine how well your body (3) __________to the stresses on it. One of the big stresses we all experience all day every day is (4) __________. If your posture isn't optimal, you (5) ___________ have to work harder to keep you upright and balanced. Over time, these (6)_________ adaptations impair your body's ability to deal with the forces on it. Poor posture inflicts extra wear and (7)________ on your joints and ligaments, increases the likelihood of accidents. It can even influence your (8)_______state and your sensitivity to pain. A good posture is when you look at the spine from the front or the back, all 33 (9)__________should appear stacked in a straight line. And from the side,the spine should have three curves: one at your neck, one at your (10)___________,and one at the small of your back. These curves help us stay upright and (11)________some of the stress from activities like walking and jumping. If they are aligned properly, it will keep your center of gravity directly over your (12)______of support, which allows you to move efficiently with the least amount of (13)________ and muscle strain.(注:第9到第13空请统一填在第9空中,不必写题号,各词之间以分号隔开即可。)