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必修第一册Unit 5Into the wild佳作抢鲜背学写作思路，背精彩范文(人与自然——保护蜂鸟)(2023·浙江1月卷)作者被邀请去一个农场享用露天烧烤，发现有一只蜂鸟被蜘蛛网困住了，于是作者救了这只蜂鸟。
但是，蜂鸟却迟迟不肯飞走，徘徊了许久后才离开。
后来，在作者准备离开时，这只蜂鸟又出现了……精彩范文I was just about to leave when the hummingbird appeared. With a squeaking call，she dived towards me and hovered before my face，looking at me with her bright eyes.Then she stopped on my left shoulder.I patted her on the back which was covered by colorful feathers.And I took out my water bottle，trying to give her some water.Content and joyful, she flew about 2 meters above the ground，turning her head from side to side as if expressing her gratitude for saving her life to me again. At that moment，happiness and the feeling of being moved mingled，welling up into my heart，tears rolling down my cheeks.学习借鉴1.富有表现力的动词和词组dived，hovered，patted her on the back2.提分高级句式(1)现在分词短语作伴随状语①looking at me...②trying to give her some water③turning her head from side to side...④welling up into my heart...(2)定语从句which was covered by colorful feathers(3)独立主格结构tears rolling down my cheeks1.measure v.量，测量；衡量link－v.(指尺寸、长短、数量等)量度为……n.措施；方法→measurement n.测量；尺寸以练促学猜测词义/单句语法填空/一句多译①The tailor measured me carefully and made a suit to my measure.v t.测量n.尺寸②The young couple lived in a furnished flat，measuring (measure) approximately 15 metres by 16 metres.③因此，是我们采取有效措施保护海洋的时候了。
八大沉淀化学反应方程式化学反应的过程中，沉淀物的形成能够给出反应的有效性，而沉淀反应是化学反应中常见的一种，下面将介绍其中八大沉淀反应方程式：1.铵态离子沉淀反应（Ammonium precipitation reaction）：这是由铵离子和弱离子共存而产生沉淀物的一种反应，一般用途是分离金属离子或其他带电离子。
它的反应方程式为：MXn + MYm （ammonium salt）→XnnM（precipitation）+YmmM（solution）2.硫酸根离子沉淀反应（Sulphate precipitation reaction）：这是一种由硫酸根离子共存而产生沉淀物的反应，用来分离带电离子，如碳酸根离子，氨基酸离子等。
反应方程式为：MXn + SO2－4→XnnM（precipitation）+ SO2－4（solution）3.氢氧化物离子沉淀反应（Hydroxide precipitation reaction）：这是一种由氢氧化物离子共存而产生沉淀物的反应，常被用来分离金属离子。
反应方程式为：MXn + OH－→XnnM（precipitation）+ OH－（solution）4.碱性离子沉淀反应（Base precipitation reaction）：这是一种由碱离子（如NaOH或NH3）共存而产生沉淀物的反应，常被用来检测氨基酸离子的存在性。
反应方程式为：MXn + NaOH－→XnnM（precipitation）+ NaOH－（solution）5.氯化物沉淀反应（Chloride precipitation reaction）：这是一种由氯化物共存而产生沉淀物的反应，常被用来检测金属离子的存在性。
反应方程式为：MXn + Cl－→XnnM（precipitation）+ Cl－（solution）6.氧化物沉淀反应（Oxide precipitation reaction）：这是一种由氧化物共存而产生沉淀物的反应，常被用来分离金属离子和其他离子。
十大浪漫的化学方程式化学方程式似乎并不是浪漫的事情，但是其中蕴藏的魅力却是不容忽视的。
以下是十大浪漫的化学方程式：1. Coupling Reaction - 偶联反应这是一种非常浪漫的化学方程式，因为它将两个有机分子（通常是芳香族化合物）连接在一起，形成一个更大的分子。
这种化合物具有天然的魅力和性感。
2. Esterification Reaction - 酯化反应当沉浸在浓烈的香水中时，你感到舒适和兴奋，究其原因，这是因为其中含有酯化合物。
这是一个非常受欢迎的化学反应，它产生了这些美妙的气味。
3. Love Locks - 爱的锁当两个人像情侣一样在爱河边散步时，他们会把一把钥匙扔进河里，并把另一把钥匙锁在桥上。
这种行为与氧化还原反应有关。
铁锁上的水分和氧气会导致其表面发生氧化反应，从而形成了美丽的铁锈。
这个反应与爱情一样，美丽而持久。
4. Fireworks - 烟花烟花是每年庆祝重要节日和喜庆活动时必不可少的一个项目。
鉴于不同元素的能量差异，这些魔法气球在点燃后产生出人们喜闻乐见的剧烈而短暂的火花。
这种反应瞬息万变，充满了文艺和想象力。
5. Enzymatic Reaction - 酶反应酶是一种生物学的强大力量，它可以加速化学反应速度。
你的身体里有大量的酶，这些酶协助许多生化反应，例如消化食物。
酶反应隐喻着在彼此循序渐进和相互支持的过程中，人们可以得到很多好处。
6. Carbon Dioxide Fixation - 二氧化碳固定这是一种浪漫的过程，化学方程式为：6CO2 + 6H2O + 光能→ C6H12O6 + 6O2二氧化碳、水和太阳能通过光合作用变成有机物质（如葡萄糖，呼吸），同时释放出氧气，这个过程是生命的基础。
同样的，人们可以从阳光和氧气中获得能量去营造生活的幸福和浪漫。
7. Polymerization Reaction - 聚合反应人造纤维和塑料制品都是由聚合反应合成的材料。
reaction的动词形式Reaction这个词在英语中的含义是反应、应对、反应程度等。
当我们描述一些事物、事件的时候，经常需要用到一些与reaction相关的动词，本文将分步骤阐述一些常用的reaction的动词形式。
1. ReactReact是最基本、最常用的与reaction相关的动词。
它的意思是“对某事物做出反应”，可以用来描述任何物体或个体对外部刺激做出的反应。
例如：- Some people react negatively to criticism. (有些人对批评做出消极反应。
)- The skin reacts to sunlight by producing more melanin. (皮肤受到阳光的刺激会产生更多的黑色素。
)2. RespondRespond也是一个常用的reactive动词，与react大致相同。
但是，respond更加强调“积极地、有目的地”做出反应的含义，而且通常用于描述人的反应。
例如：- The company responded to customer complaints by improving its customer service. (公司通过改进客户服务来回应客户的投诉。
)- The army responded quickly to the enemy's attack, pushing them back across the border. (军队迅速回应敌人的攻击，将他们赶回边境。
)3. AdaptAdapt这个词与reaction有些不同，表示的是一种“适应”或“调整”的反应。
当我们遭遇某种困境或改变的时候，需要做出积极的反应来适应这些变化。
例如：- After moving to a new country, it took a while for me to adapt to the different culture. (在搬到新的国家后，我花了一段时间去适应不同的文化。
高级化学五种基本句型及练习在高级化学中，熟悉几种基本句型对于表达复杂思想非常重要。
以下是五种基本句型及练：1. 主语 + 动词这是最基本的句型，非常常见。
通过在主语后加上动词，可以表达一个动作或事件。
例句：- The reaction proceeded quickly.（反应迅速进行。
）- Sodium reacts violently with water.（钠与水反应剧烈。
）练题：- Carbon dioxide __________ with water to form carbonic acid.- The students __________ in the laboratory for three hours.2. 主语 + 动词 + 名词这种句型在化学中经常使用，可以用来描述化学实验或反应。
例句：- The addition of the acid caused the solution to turn red.（加入酸后，溶液变成了红色。
）- The reaction produced a gas.（反应产生了气体。
）练题：- The __________ of the acid caused the solution to turn green.（加入酸后，溶液变成了绿色。
）- The reaction __________ hydrogen gas.（反应产生了氢气。
）3. 主语 + 动词 + 形容词这种句型可以用来描述物质的性质或状态。
例句：- The solution was highly acidic.（溶液呈酸性。
）- The gas was extremely toxic.（气体极其有毒。
）练题：- The acid was __________.（酸性很强。
）- The gas was highly __________.（气体非常有毒。
）4. 主语 + 动词 + 副词这种句型可以用来描述化学实验或反应的速度或过程。
henry reaction反应条件
摘要：
1.亨利反应简介
2.亨利反应的反应条件
3.亨利反应在化学领域的重要性
正文：
亨利反应（Henry reaction）是一种在有机化合物中进行的加成反应，通常涉及不饱和化合物与氢气的反应。
这种反应在有机化学中具有重要意义，因为它可以将不饱和化合物转化为饱和化合物，从而改变化合物的性质。
反应条件如下：
1.反应物：不饱和化合物（如烯烃、炔烃等）和氢气。
2.催化剂：通常不需要催化剂，但在某些情况下，可以加入过渡金属催化剂以加速反应速率。
3.温度：反应一般在室温下进行，但在某些情况下，适当提高温度可以加快反应速率。
4.压力：通常在常压下进行，但在高压条件下，反应可以更快地进行。
5.溶剂：反应可以在各种溶剂中进行，如醇、醚、酸等，选择合适的溶剂有助于提高反应产率。
亨利反应在化学领域具有很高的实用价值，因为它可用于合成、改性和降解有机化合物。
例如，在制药工业中，亨利反应可用于合成药物中间体；在材料科学中，通过亨利反应可以改善聚烯烃的性能；此外，亨利反应还可用于环
境治理，如臭氧层破坏物质的降解。
1Walt Whitman and Allen GinsbergWalt Whitman and Allen Ginsberg are both famous poets of modern America. Whitman had an open mind about writing methods and sexual preference, so he had been suffering censure for his life. While Allen Ginsberg concentrate in fields of art, literature and philosophy. They have obvious connection between their styles of poetry.Walt Whitman was born in 1819, an American poet, essayist and journalist. He had a controversial life because of his works and his sexual preference. Especially, in his poetry collection called Leaves of Grass, he expressed his sexual interest to man, which was considered as obscene attitude to sexuality. But, it did not stop him from becoming one of the most influential poets in the field of free verse in America. Different with other poets, he was enthusiastic about politics. Supporting for the Wilmot Proviso, he held the perspective that every race should be equally treated. He once opposed the extension of slavery generally: ―His poetry presented an egalitarian view of the races, and at one point he called for the abolition of slavery, but later he saw the abolitionist movement as a threat to democracy.‖ (1)His poetry, in some degree, broke the boundaries of traditional poetic. It was a time when realism was taking place of Transcendentalism; so, both of the two popular style were showed in his works. For example, in his most famous poet ―From Song of Myself‖:I celebrate myself, and sing myself,2 …I breathe the fragrance myself and know it and like it…You should no longer take things at second and third hand, nor look through the eyes of the dead, nor feed on the specters in booksI am satisfied—I see, dance, laugh, sing; (519--520)From the sentences quoted from the poem above, it is apparent that Walt Whitman always mentioned about death and sexuality with an advanced and open mind. The conventional methods of composing which like meters, rhyme scheme and alliteration rarely appeared in this poem. On the contrary, he adopted the free verse in which he can express his emotions and feelings freely. That is the reason why he was labeled as the father of free verse; however, there is one point should be emphasized is that he did not invent the free verse, while he make unconventional style famous and fashionable.In his poem, the emotions were often conveyed by first-person statement which is the most powerful way to do a narration and describe the main theme directly, and most frequent used in romantic poetry. In a word, Walt Whitman’s poetic theory is: "The proof of a poet is that his country absorbs him as affectionately as he has absorbed it."(2), which was concluded by himself, because he believed there is an extremely connection between poet and society.By contrast, Allen Ginsberg was a much modern poet who was born in 1920s and did not die until 1997. Different with Whitman’s free verse, Ginsberg was famous of his beat generation in the 1950s. He was interested in philosophy and art and behaved actively rejected the militarism, materialism and sexual repression, which resembled with Whitman. The best known poem written by Ginsberg is ―Howl‖, an epic poem:I saw the best minds of my generation destroyed bymadness, starving hysterical naked,dragging themselves through the negro streets at dawnlooking for an angry fix ...In the poem above, Ginsberg got inspiration from the free verse style of Whitman’s poems in 19th century. And this is also one of the poems of beat generation.In his another famous poem called A Supermarket in California; he used a lot of short sentences, phrases, commas to compose a long sentence with dozen of strong beats. The wording he attempted is straightforward and easy to understand. The entire poem is like a refreshing and nature wind bellowing around you. J. D. McClatchy, editor of the Yale Review, called Ginsberg "the best-known American poet of his generation, as much a social force as a literary phenomenon." McClatchy added that Ginsberg, like Whitman, "was a bard in the old manner – outsized, darkly prophetic, part exuberance, part prayer, part rant. His work is finally a history of our era's psyche, with all its contradictory urges." (3)In a nutshell, Whitman was a pioneer of free verse style and Ginsberg carried it forward to his own style—beat generation, and both of them are the outstanding poet in American modern history.5Working Citation1."Walt Whitman." From Wikipedia, the Free Encyclopedia. N.p., n.d. Web. 25 Mar. 2012.</wiki/Allen_Ginsberg>.2.GARDNER, LAWN, RIDLL, and SCHAKEL, eds. Literature. Boston/ New York: Bedford/St. Martin's, Web.20093.J. D. McClatchy, ed. "Yale Review." Allen Ginsberg From Wikipedia, The Free Encyclopedia. N.p., n.d. Web.26 Mar. 2012. </wiki/Allen_Ginsberg>.。
