* 英语学习中，最有效的方法是通过英语本身来进行学习。《英读廊》作为《满庭说英语》的拓展阅读系列，旨在提高大家的英语阅读能力，并帮助树立英语思维模式；* 推荐的阅读步骤是：首先阅读原文，然后参考解析，若还有疑问，再查看双语对照。* 解析中的英语单词音标使用了Dictcom和IPA双音标标注，如果你对Dictcom音标感兴趣，可以查阅我们之前的《所用的音标体系》一文。* 本文的难度评级为7.3，由《小仙英语伴读》人工智能难度分析系统提供。
当你用勺子触碰锅底时，水为何会更加猛烈地沸腾呢？
【译】Why does water boil more aggressively when you touch the bottom of the pan with a spoon?【单词】boil [boil][bɔɪl] v. 沸腾；煮沸【单词】aggressively [uh-'gres-iv-lee][ə'ɡresɪvli] adv. 强烈地【单词】touch [tuhch][tʌtʃ] vt. 触摸；接触【单词】bottom ['bot-uh m]['bɒtəm] n. 底部；底端【单词】pan
你实际是在创造一个成核点，让气泡更容易形成。
【译】You are creating a nucleation site and allowing bubbles to more easily form.【单词】creating 原型：create [kree-'eyt][kri'eɪt] v. 创造；形成【单词】nucleation [ˌnjuːklɪ'eɪʃən] n. 成核现象【单词】site [sahyt][saɪt] n. 地点【单词】bubbles 原型：bubble ['buhb-uhl]['bʌbl] n. 气泡
如果容器非常光滑且均匀，那么干净的水可能会很难开始沸腾。
【译】Clean water can have difficulty coming to a boil if the container it is in is very smooth and uniform.【单词】difficulty ['dif-i-kuhl-tee, -kuhl-tee]['dɪfɪkəlti] n. 困难【单词】container [kuh n-'tey-ner][kə'teɪnə] n. 容器【单词】smooth [smooth][smuːð] adj. 光滑的【单词】uniform ['yoo-nuh-fawrm]['juːnɪfɔːm] adj. 一致的
在锅的最热区域（靠近炉子处），加入不同于容器的材料，比如勺子或意大利面，可以为水提供一个不规则的区域，使气泡更容易生成。
【译】Adding a material different than the container, such as a spoon or piece of spaghetti, to the hottest region of the pot (nearest the stove), gives the water an irregular area where bubbles can more easily form.【短语】such as 比如；例句：I know many of them, such as John, Peter, and Tom. 我认识他们当中的很多人，例如约翰、彼得和汤姆。【单词】spaghetti [spuh-'get-ee][spə'ɡeti] n. 意大利细面条【单词】hottest 原型：hot 形容词最高级：最热的
【单词】region ['ree-juhn]['riːdʒən] n. 地区；区域【单词】pot [pot][pɒt] n. 罐；壶【单词】stove [stoʊv] n. 炉子【单词】irregular [ih-'reg-yuh-ler][ɪ'reɡjələ] adj. 不规则的
在极端情况下，水可能会过热，最微小的震动或物体落入容器中都会导致水猛烈地沸腾并喷出容器外。
【译】In extreme cases, water can become superheated and the smallest vibration or something falling into the container can cause it to explosively come to a boil and geyser out of the container.【短语】fall into 落入；例句：We rescued the boy who fell into the river. 我们救起了掉进河里的小孩。【单词】extreme [ik-'streem][ɪk'striːm] adj. 极端的【单词】superheated [soo-per-'heet][ˌsuːpə'hiːtɪd] 过热的【单词】vibration [vahy-'brey-shuhn][vaɪ'breɪʃn] n. 震动【单词】explosively [ik-'sploʊ-siv-lee][ɪk'spləʊsɪvli] adv. 爆炸地【单词】geyser ['gahy-zer]['ɡiːzə] n. 间歇泉
类似的现象也可以在糖果制作过程中观察到。
【译】A similar effect can be seen in candymaking.【单词】supersaturated [suːpər'sætʃəreɪtɪd] 过饱和的【单词】sugar ['shoo g-er]['ʃʊɡə] n. 糖【单词】solution [suh-'loo-shuhn][sə'luːʃn] n. 溶液【单词】liquid ['lik-wid]['lɪkwɪd] adj. 液体的
当你向过饱和的糖溶液中加入几粒固体糖，或者用勺子刮一下罐子的侧面，整个溶液会突然结晶，因为你提供了成核点。
【译】Drop a few grains of solid sugar into the pot or scratch the side of the pot with a spoon and the whole thing suddenly crystallizes because you've provided nucleation sites.【单词】grains 原型：grain [greyn][ɡreɪn] n. 颗粒【单词】solid ['sol-id]['sɒlɪd] adj. 固体的【单词】scratch [skrach][skrætʃ] v. 刮
成核点是状态变化（液体到固体或气体）发生的地方。
【译】Nucleation sites are where the change of state (liq->solid or liq->gas) occurs.【单词】occurs 原型：occur [uh-'kur][ə'kɜː] vi. 发生【单词】exactly [ig-'zakt-lee][ɪɡ'zæktli] adv. 精确地【单词】slight [slahyt][slaɪt] adj. 轻微的【单词】microscopic [mahy-kruh-'skop-ik][ˌmʌɪkrə'skɒpɪk] adj. 微观的
当所有条件都完全一致时，成核点很难形成。
【译】When everything is exactly the same, it can be hard for such a site to appear.【单词】exactly [ig-'zakt-lee][ɪɡ'zæktli] adv. 完全地【单词】slight [slahyt][slaɪt] adj. 轻微的【单词】microscopic [mahy-kruh-'skop-ik][ˌmʌɪkrə'skɒpɪk] 微观的【单词】impurities [im-pyoor-i-teez][ɪm'pjʊərɪtiz] n. 杂质