向上移動(dòng)1米距離所作的功為1焦耳。 1J=1w·s=1A·V·s，即1瓦的機(jī)械工作1秒的釋放的能量為1焦耳，3.6*10^6J=1kwh,即1度，是電的常用單位。 ? 擴(kuò)展資料 J——轉(zhuǎn)動(dòng)慣量 轉(zhuǎn)動(dòng)慣量(Moment of Inertia)是剛體繞軸轉(zhuǎn)動(dòng)時(shí)慣性（回轉(zhuǎn)物體保持其勻速圓周運(yùn)動(dòng)或靜止的特性）的量度，用字母I或J表示。 在經(jīng)典力學(xué)中，轉(zhuǎn)動(dòng)慣量（又稱質(zhì)量慣性矩，簡(jiǎn)稱慣距）通J是英語中的一個(gè)重要元音字母，但它的發(fā)音似乎比其他字母要稍微復(fù)雜一些。究竟復(fù)雜在哪里呢？一起來看看吧。 ? “j常以I 或J表示，SI 單位為 kg·m2。對(duì)于一個(gè)質(zhì)點(diǎn)，I = mr2，其中 m 是其質(zhì)量，r 是質(zhì)點(diǎn)和轉(zhuǎn)軸的垂直距離。 轉(zhuǎn)動(dòng)慣量在旋轉(zhuǎn)動(dòng)力學(xué)中的角色相當(dāng)于線性動(dòng)力學(xué)中的質(zhì)量，可形式地理解為一個(gè)物體對(duì)于旋轉(zhuǎn)運(yùn)動(dòng)的慣性，用于建立角動(dòng)量、角速度、力矩和角加速度等數(shù)個(gè)量之間的關(guān)系。 ? 以上是為大家介紹的j英文字母怎么發(fā)音的相關(guān)信息，希望對(duì)大家有一定的幫助。更多英語相關(guān)信息，可以關(guān)注滬江網(wǎng)查詢。 ? 特別提醒：如果您對(duì)英語學(xué)習(xí)感興趣，想要深入學(xué)習(xí)，可以了解滬江網(wǎng)校精品課程，量身定制高效實(shí)用的個(gè)性化學(xué)習(xí)方案，專屬督導(dǎo)全程伴學(xué)，掃一掃領(lǐng)200暢學(xué)卡。

2024年12月英語六級(jí)考試將在12月14日下午舉行，同學(xué)們準(zhǔn)備的如何？今天@滬江英語四六級(jí)微信公眾號(hào)為大家整理了2024年12月英語六級(jí)閱讀理解模擬真題：地震，一起來看看吧。 2024年12月英語六級(jí)閱讀理解模擬真題：地震 A) An earthquake is one of the most terrifying phenomena that nature can dish up. We generally think of the ground we stand on as “rock-solid” and completely stable. An earthquake can

作文

六

六級(jí)作文的時(shí)候，大家都無從下手，其實(shí)在掌握基礎(chǔ)知識(shí)的前提下，大家可以多掌握一些模板

本文來源：滬江英語四六級(jí)微信公眾號(hào) 大家好，2021年12月英語六級(jí)考試越來越近啦，小編特推出六級(jí)作文模板系列文章。一起學(xué)作文模板，搞定六級(jí)作文~? 今天為大家?guī)淼氖菆D片式作文模板。 模板1： ①As is vividly revealed in the picture, ______（描述圖片內(nèi)容）.? The picture reminds us of an old Chinese saying— ______（進(jìn)一步說明圖片表明的含義）. ②Undoubtedly, the symbolic meaning conveyed in the picture is ___（揭示圖片

2024年12月英語六級(jí)考試將在12月14日下午舉行，大家要認(rèn)真復(fù)習(xí)哦。今天@滬江英語四六級(jí)微信公眾號(hào)為大家整六理了2024年12月英語六級(jí)閱讀理解全真模擬題（2），希望對(duì)你有所幫助。 　　2024年12月英語六級(jí)閱讀理解全真模擬題（2） ? ? ? ?I live in the land of Disney, Hollywood and year-round sun. You may think people in such a glamorous, fun-filled place are happier than others. If so, you have some mistaken ideas about the nature of happiness. 　　Many intelligent people still equate happiness with fun. The truth is that fun and happiness have little or nothing in common. Fun is what we experience during an act. Happiness is what we experience after an act. It is a deeper, more abiding emotion. 　　Going to an amusement park or ball game, watching a movie or television, are fun activities that help us relax, temporarily forget our problems and maybe even laugh. But they do not bring happiness, because their positive effects end when the fun ends. 　　I have often thought that if Hollywood stars have a role to play, it is to teach us that happiness has nothing to do with fun. These rich, beautiful individuals have constant access to glamorous parties, fancy cars, expensive homes, everything that spells “happiness”. But in memoir after memoir, celebrities reveal the unhappiness hidden beneath all their fun: depression, alcoholism, drug addiction, broken marriages, troubled children and profound loneliness. 　　Ask a bachelor why he resists marriage even though he finds dating to be less and less satisfying. If he’s honest, he will tell you that he is afraid of making a commitment. For commitment is in fact quite painful. The single life is filled with fun, adventure and excitement. Marriage has such moments, but they are not its most distinguishing features. 　　Similarly, couples that choose not to have children are deciding in favor of painless fun over painful happiness. They can dine out ever they want and sleep as late as they want. Couples with infant children are lucky to get a whole night’s sleep or a three-day vacation. I don’t know any parent who would choose the word fun to describe raising children. 　　Understanding and accepting that true happiness has nothing to do with fun is one of the most liberating realizations we can ever come to. It liberates time: now we can devote more hours to activities that can genuinely increase our happiness. It liberates money: buying that new car or those fancy clothes that will do nothing to increase our happiness now seems pointless. And it liberates us from envy: we now understand that all those rich and glamorous people we were so sure are happy because they are always having so much fun actually may not be happy at all. 　　1.Which of the following is true? 　　A.Fun creates long-lasting satisfaction. 　　B.Fun provides enjoyment while pain leads to happiness. 　　C.Happiness is enduring whereas fun is short-lived. 　　D.Fun that is long-standing may lead to happiness. 　　2.To the author, Hollywood stars all have an important role to play that is to __. 　　 memoir after memoir about their happiness. 　　 the public that happiness has nothing to do with fun. 　　 people how to enjoy their lives. 　　 happiness to the public instead of going to glamorous parties. 　　3.In the author’s opinion, marriage___. 　　s greater fun. 　　 to raising children. 　　tes commitment. 　　 in pain. 　　4.Couples having infant children___. 　　 lucky since they can have a whole night’s sleep. 　　 fun in tucking them into bed at night. 　　 more time to play and joke with them. 　　 happiness from their endeavor. 　　5.If one get the meaning of the true sense of happiness, he will__. 　　 playing games and joking with others. 　　 the best use of his time increasing happiness. 　　 a free hand to money. 　　 himself with his family. 參考答案:CBCDB 以上就是今天的學(xué)習(xí)內(nèi)容啦。大家要利用好最后一個(gè)月的時(shí)間多多練習(xí)，并且多進(jìn)行模考熟悉考試流程。小編預(yù)祝大家順利通過英語六級(jí)~

要參加英語六級(jí)考試的同學(xué)，必須要做好充分的準(zhǔn)備，其中作文是最難的，也是要求最高的。今天我們?yōu)榇蠹艺砹舜髮W(xué)英語六級(jí)作文模板，歡迎大家閱讀。 第一段：引出主題 + 一方觀點(diǎn) 一.萬能句型(可用在首句)： 1.What this thought-provoking drawing mirrors is the phenomenon that … 1)“網(wǎng)絡(luò)的利與弊” Most of individuals spend too much time on their computer terminal rather than relating to people in the real world

距離2024年12月英語六級(jí)考試只有一個(gè)月啦，各位小伙伴準(zhǔn)備的如何？今天@滬江英語四六級(jí)微信公眾號(hào)為大家準(zhǔn)備了2024年12月英語六級(jí)閱讀理解全真模擬題（1），檢驗(yàn)一下最近的學(xué)習(xí)成果。一起來看看吧~ 2024年12月英語六級(jí)閱讀理解全真模擬題（1） Without regular supplies of some hormones our capacity to behave would be seriously impaired; without others we would soon die. Tiny amounts of some hormones can modify moods and actions, our inclination to eat or drink, our aggressiveness or submissiveness, and our reproductive and parental behavior. And hormones do more than influence adult behavior; early in life they help to determine the development of bodily form and may even determine an individual’s behavioral capacities. Later in life the changing outputs of some endocrine glands and the body’s changing sensitivity to some hormones are essential aspects of the phenomena of aging. Communication within the body and the consequent integration of behavior were considered the exclusive province of the nervous system up to the beginning of the present century. The emergence of endocrinology as a separate discipline can probably be traced to the experiments of Bayliss and Starling on the hormone secretion. This substance is secreted from cells in the intestinal walls when food enters the stomach; it travels through the bloodstream and stimulates the pancreas to liberate pancreatic juice, which aids in digestion. By showing that special cells secret chemical agents that are conveyed by the bloodstream and regulate distant target organs or tissues. Bayliss and starling demonstrated that chemical integration could occur without participation of the nervous system. The term “hormone” was first used with reference to secretion. Starling derived the term from the Greek hormone, meaning “to excite or set in motion. The term “endocrine” was introduced shortly thereafter “Endocrine” is used to refer to glands that secret products into the bloodstream. The term “endocrine” contrasts with “exocrine”, which is applied to glands that secret their products though ducts to the site of action. Examples of exocrine glands are the tear glands, the sweat glands, and the pancreas, which secrets pancreatic juice through a duct into the intestine. Exocrine glands are also called duct glands, while endocrine glands are called ductless. 1.What is the author’s main purpose in the passage? A.To explain the specific functions of various hormones. B.To provide general information about hormones. C.To explain how the term “hormone” evolved. D.To report on experiments in endocrinology. 2.The passage supports which of the following conclusions? A.The human body requires large amounts of most hormones. B.Synthetic hormones can replace a person’s natural supply of hormones if necessary. C.The quantity of hormones produced and their effects on the body are related to a person’s age. D.The short child of tall parents very likely had a hormone deficiency early in life. 3.It can be inferred from the passage that before the Bayliss and Starling experiments, most people believed that chemical integration occurred only___. sleep. the endocrine glands. control of the nervous system. strenuous exercise. 4.The word “l(fā)iberate” could best be replaced by which of the following? A.Emancipate B.Discharge C.Surrender D.Save 5.According to the passage another term for exocrine glands is___. glands ine glands ss glands inal glands. 答案：BDCBA 以上就是今天的六級(jí)閱讀模擬題，希望大家利用好最后的一個(gè)月認(rèn)真?zhèn)淇?。祝大?span style="color: #fe6016">能順利通過考試

距離2024年12月英語六