题干

化学就在我们身边,它与我们生产、生活息息相关。现有以下常见的物质:
①CO2  ②CH3COOH   ③NaOH    ④KNO3   ⑤C2H5OH   ⑥SO2
请选择合适物质的序号填空:
(1)绿色植物进行光合作用需要____
(2)属于复合肥的是 ____
(3)食醋中含有____
(4)国酒茅台中含有____

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答案(点此获取答案解析)

①,④,②,⑤

同类题1

阅读文言文,回答问题

      【甲】秋水时至,百川灌河。泾流之大,两涘渚崖之间,不辩牛马。于是焉,河伯欣然自喜,以天下之美为尽在己。顺流而东行,至于北海。东面而视,不见水端。于是焉,河伯始旋其面目,望洋向若而叹曰:“野语有之曰:‘闻道百,以为莫己若’者,我之谓也。且夫我尝闻少仲尼之闻,而轻伯夷之义者,始吾弗信,今我睹子之难穷也,吾非至于子之门,则殆矣。吾长见笑于大方之家。”

      【乙】黄帝将见大隗①乎具茨②之山,适遇牧马童子,问涂③焉,曰:“若知具茨之山乎?”曰:“然。”“若知大隗之所存乎?”曰:“然。”黄帝曰:“异哉小童!非徒知具茨之山,又知大隗之所存。请问为天下。”小童辞。黄帝又问。小童曰:“夫为天下者,亦奚④以异乎牧马者哉?亦去其害马者而已矣。”黄帝再拜稽首,称天师而退。

                                                                                                                                                                                                    选自《庄子·徐无鬼》

【注释】①大隗(wěi)传说中的神名。②具茨:山名。③涂:同“途”,路。④奚:何,什么。

同类题2

阅读理解

B

    These days, young people in some English-speaking countries are speaking a strange language, especially when communicating on social media.

    Look at these words chosen by The Washington Post: “David Bowie dying is totes tradge,” and “When Cookie hugged Jamal it made me totes emosh.” Or this sentence: “BAE, let me know if you stay in tonight.”

    What on earth do they mean? Well, “totes” is a short form of “totally”. Similarly, “tradge” means “tragic” and “emosh” means “emotional”. It seems that, for millennials(千禧一代), typing in this form is not only time-saving but fashionable.

    As you can see, many millennial slangs(俚语)are formed by so-called “totesing”—the systematic abbreviation(缩写)of words. The trend might have started with “totally” becoming “totes”, but it now has spread to many other English words.

    The origins of other millennial slangs are more complex than “totesing”.“Bae”, for example, has been widely used by African-Americans for years. It can be an expression of closeness with one's romantic partner or, like “sweetheart”, for someone without romantic connection. After pop singer Pharrell used the word in his work, “bae” became mainstream.

    Some people might think millennial slangs lower the value of the English language, but Melbourne University linguist(语言学家)Rosey Billington doesn't agree. She says when people are able to use a language in a creative way, they show that they know the language rules well enough to use words differently. Two other linguists, Lauren Spradlin and Taylor Jones, share the same view. The two analysed hundreds of examples of totes-speak and discovered totesing has complex roots.

    It isn't simply an adult version of baby talk, nor a clever way to minimize your word count. Rather, it is a highly organized system that relies on a speaker's mastery of English pronunciation. It is about sounds, follows sound system of English and has strict rules.