When we use metals, ___ how they react with different substances,for example,water and oxygen.当我们使用金属时,了解它们与不同的物质如何反应是很重要的,例如,水和氧气。 答案 答案:it is important to know.因指的是一般事实,要用一般现在时;it是形式主语,真正的主语是动词不定式to know。故填:it is...
「主题与语篇填空」Metals expand when 1.(heat)and contractwhen cooled. How do they react with different 2.(substance)? Let's do a simple experiment.The aim of this experiment is to discover 3.iron rusts in dry air and in ordinary water. To carry out theexperiment, you need the 4.(fo...
网络酸如何对金属起反应 网络释义 1. 酸如何对金属起反应 翻译词典... ...How do acids react on metals?酸如何对金属起反应? Plants react to light. 植物对光照起反应. ... www.tdict.com|基于 1 个网页 例句
课文原句:When we use metals, it is important to know how they___different substances, for example, water and oxygen. 当使用金属时,我们要知道他们是如何与不同的物质,如水和氧气,发生反的,这〔一点〕很重要。 〔1〕〔化学〕反〔常与 with 搭配〕;〔物理〕产生反作用,排斥〔常与 upon/against...
How do metals react with water? Many metals react with water.The metal makes the water become an alkaline solution – a metal hydroxide solution. Hydrogen gas is given off. Metal + watermetal hydroxide + hydrogen Some metals (eg caesium) react so violently with water that they are dangerous...
When we use metals, it is important to know how they react with different (物质), for example, water and oxygen. 相关知识点: 试题来源: 解析 substances 考查翻译填空。 "物质" 为 "substance" ,句意:当我们使用金属时,知道它们如何与不同的物质反应是很重要的,例如,水和氧。该词为可数名词,故...
1.react vi.(化学)反应(教材 P) When we use metals,it is important to knowhow they react with different substances,for example,water and oxygen.当我们使用金属时,了解它们和不同的物质(例如水和氧气)如何发生反应是很重要的。(1)react with与……发生反应react to对……)产生反应;回应react against...
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) [化]起化学作用;[物]反应[] How do acids react on metals? 酸对金属会起怎样的化学反应? An acid can react with a base to form a salt. 酸和碱反应会产生盐. vt. 使起反应;使发生相互作用[] We make superphosphate by reacting rock phosphate with sul
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