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有些人就是天生拥有超高颜值,她们的美丽,常常让人觉着她们来自其他星球。
2024年12月19日,用英文给宝宝讲夏季奥运会:内含100+运动项目原创2021-07-27 11:32·你和宝宝说英语作者:小雅和英美友人夏季奥运会-美国外教语音示范.mp36:11来自你和宝宝说英语Summer Olympic Games 夏季奥运会Every four years, top athletes in the world compete in a festival of sports, called the Olympic Games.每隔四年,世界上的顶级运动员们会参加一个运动盛会,叫做奥运会。There are two types of Olympic Games – summer and winter, which occur two years apart from each other.奥运会分两种——夏季和冬季,它们每隔两年交替进行。This year is an exception.今年是个特殊情况。Due to the pandemic, 2020 Summer Olympic Games have been postponed to 2021.由于疫情,2020年夏季奥运会被推迟到2021年举行。Beijing will be holding the Winter Olympic Games in 2022.北京将会在2022年举办冬季奥运会。我们列出了2020年东京奥运会的100多个运动的中英文名称,并对部分项目进行了说明。我们还引用了英国Usborne出版社的Look Inside Sports翻翻书中的句子,用简单的语言向宝宝介绍一些项目。1. 3x3 Basketball 三人篮球x读作on。2. Archery 射箭Archers use a bow and arrow to fire at targets.射箭手用弓箭射向靶子。3. Artistic Gymnastics 竞技体操Male gymnasts compete in six medal events: floor, pommel horse, rings, vault, parallel bars, and horizontal bar.男子体操选手在六项比赛中角逐:自由操、鞍马、吊环、跳马、双杠和单杠。In the women's division, there are four medal events: vault, uneven parallel bars, balance beam, and floor.女子组有四项比赛:跳马、高低杠、平衡木和自由操。4. Artistic Swimming 花样游泳Artistic swimming, or synchronized swimming, is a mix of swimming and dance.花样游泳融合了游泳与舞蹈。5. Athletics 田径Athletics involves track, field, road events, and the men's decathlon and women's heptathlon.田径包括径赛、田赛、公路赛和男子十项全能和女子七项全能。Track events are mostly running races on a track, including sprint, middle and long-distance events, hurdle race, steeplechase race, and relay.径赛项目主要是在跑道上进行的跑步比赛,包括短跑、中长跑、跨栏、障碍赛和接力。Field events involve jumping or throwing things including high jump, pole vault, long jump, triple jump, shot put, discus throw, hammer throw, and javelin throw.田赛项目包含跳或投掷,包括跳高、撑杆跳、急行跳远、三级跳远、铅球、铁饼、链球和标枪。These take place on a grassy field.这些项目会在草地上举行。The marathon and racewalking events are held on public roads.马拉松和竞走比赛在公共道路上举行。6. Badminton 羽毛球Badminton players hit a shuttlecock made of feathers and wood.羽毛球运动员打的是羽毛和木头做的羽毛球。7. Baseball / Softball 棒球 / 垒球8. Basketball 篮球9. Beach Volleyball 沙滩排球Beach volleyball is played on sand.沙滩排球是在沙子上进行的。10. Boxing 拳击Boxers throw powerful punches with padded gloves.拳击手带着拳击手套击出重拳。11. Canoe Slalom 皮划艇激流回旋12. Canoe Sprint 皮划艇静水13. BMX Freestyle Cycling 自由式小轮车14. BMX Racing Cycling 小轮车竞速BMX bike racers speed along dirt tracks.小轮车选手沿着煤渣跑道赛车。15. Mountain Bike Cycling 山地自行车16. Road Cycling 公路自行车Road riders climb steep hills on their bikes.公路自行车选手骑车爬过陡坡。17. Cycling Track 场地自行车Cyclists race each other around an oval track called a velodrome.场地自行车选手沿着椭圆形赛道比赛,赛道叫做赛车场。18. Diving 跳水There are two diving events, springboard and platform.跳水比赛有两种,跳板和跳台。Divers compete to jump into the water in the best possible style.跳水运动员比赛看谁能用最完美的姿势跳入水中。19. Equestrian 马术In an equestrian event, riders guide a horse over jumps.在马术比赛中,骑手们指引马匹跳过障碍。20. Fencing 击剑Fencers fight with blunt swords.击剑选手用钝剑对打。21. Football 足球22. Golf 高尔夫23. Handball 手球24. Hockey 曲棍球25. Judo 柔道Judo is a Japanese combat sport.柔道是一个日本的格斗运动。Players score points by wrestling their opponents to the ground.选手们通过把对手们摔倒在地得分。26. Karate 空手道27. Marathon Swimming 马拉松游泳28. Modern Pentathlon 现代五项Modern pentathlons include fencing, shooting, swimming, riding, and running.现代五项包括击剑、射击、游泳、马术和跑步。29. Rhythmic Gymnastics 艺术体操Female athletes perform expressive and acrobatic moves with the aid of handheld apparatuses - a hoop, ball, pair of clubs, and ribbon.女子运动员带来兼具表现力和杂技动作的表演,会使用以下道具:圈、球、棒和带。30. Rowing 赛艇31. Rugby 橄榄球32. Sailing 帆船Sailing events take place at sea. Racers steer their boats around markers.帆船比赛在海上进行。选手们驾驶帆船绕标航行。33. Shooting 射击34. Skateboarding 滑板35. Sport Climbing 攀岩36. Surfing 冲浪37. Swimming 游泳There are four main styles, or strokes, for swimming races – breaststroke, backstroke, butterfly, and freestyle.游泳比赛有四种泳姿——蛙泳、仰泳、蝶泳和自由泳。38. Table Tennis 乒乓球39. Taekwondo 跆拳道40. Tennis 网球41. Trampoline Gymnastics 蹦床42. Triathlon 铁人三项A triathlon is an endurance sport that combines swimming, road cycling, and distance running.铁人三项是一个考验耐力的运动,包括游泳、公路自行车和长跑。43. Volleyball 排球44. Water Polo 水球In water polo, as they swim, players try to throw the ball into the other team's goal.水球比赛中,运动员在游泳的同时要把球扔到对方的球门里。45. Weightlifting 举重Weightlifters raise very heavy barbells. There are two types of lifting: the snatch, and the clean and jerk.举重选手要举起很重的杠铃。有两种类型的举重:抓举和挺举。46. Wrestling 摔跤Wrestlers grapple each other to the floor.摔跤运动员要把对方摔倒在地。资料来源olympics.com2020.cctv.comUsborne Look Inside Sports 翻翻书点击下方链接,购买《你和宝宝说英语》一书,学习衣食住行玩相关的30个场景的亲子英文,自创家庭英语环境!
窑子开张了-惫文(吃肉肉长高高冲御宅屋整理全集无弹窗...窑子开张了最新章节冲窑子开张了小说冲窑子开张了无弹窗...
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超长寿命高效液相色谱法的类型及应用原创2021-03-15 09:51·Time拾荒者高效液相色谱法根据分离机制的不同分为:液-固吸附色谱法、液-液分配色谱法、化学键合相色谱法、离子交换色谱法、凝胶色谱法和液相制备色谱法液-固吸附色谱法1、分离原理 液-固吸附色谱是固定相为固体吸附剂,它的分离原理是基于吸附剂表面对不同物质吸附能力的不同使混合物得到分离的。2、固定相 液-固色谱法所用的固定相分为极性和非极性两大类,极性吸附剂有硅胶、氧化铝、氧化镁等,非极性吸附剂有活性炭。极性吸附剂又分为酸性和碱性,酸性吸附剂优先吸附碱性物质,碱性吸附剂优先吸附酸性物质。3、流动相 液-固色谱中流动相选择的原则是:极性大的试样选择性极大的流动相,极性小的试样选择极性低的流动相。液固色谱不适宜于强极性的或离子型的样品的分离,不适用于分离同系物。液-液分配色谱法1、分配原理 液-液分配色谱法的固定相和流动相都是液体。一个液相作为流动相,另一个液相分散在细颗粒的惰性担体上做固定相,两种液相相互共存但互不相溶。当带有待测试样的流动相进入色谱柱时,溶质分子溶解到两种液相中并很快达到分配平衡,由于试样中各组分在两液相中分配系数的不同而达到分离。2、固定相 液-液分配色谱常用的固定液有聚乙二烯、鱼鲨烷、聚酰胺等。固定液对各组分应有不同的溶液度,但应不溶于流动相中。在液-固色谱中所用的吸附剂都可用作载体,常用的载体有全孔型载体和表面多孔型载体。3、流动相 液-液分配色谱所用的固定相和流动相极性差别极大。化学键合相色谱法1、化学键合相色谱 化学键合相色谱是采用化学键合固定相的色谱。化学键合固定相就是利用化学反应的方法将固定液键合到载体表面上。化学键合相色谱在高效液相色谱的整个应用中占80%以上,是近代液相色谱中占据重要地位。2、反向键合色谱 反向键合色谱采用的是非极性键合固定相。非极性固定相是将全多孔微粒硅胶载体,经酸化处理,主要是 各种烃基硅烷键合相和苯基团。3、正相键合色谱 正相键合相色谱采用的流动相是极性小于固定相的极性,适合于中等极性样品的分离,4、离子对和离子抑制色谱 许多可解离的酸碱性样品、离子及带有可离解官能团的化合物,用一般的正相、反向色谱分离。离子交换法在离子交换色谱中,固定相是离子交换树脂,流动相常是水溶液,用于离子型和可离解样品的分离。它是利用待测样品中各组分离子与离子交换树脂的亲和力的不同而进行分离的。凝胶色谱法凝胶色谱法又叫空间排阻色谱法,它与其他色谱法的分离机制不同,近似于分子筛效应,固定相和样品分子间没有吸附或溶解作用。凝胶色谱法的固定相为多孔性凝胶类物质,流动相为水溶液或有机溶剂,它是根据不同组分分子体积的大小进行分离的。高效液相色谱仪