问题 单项选择题

下列哪一项属氯化铵的作用

A.直接刺激支气管腺体分泌
B.反射性刺激支气管腺体分泌
C.直接抑制支气管腺体分泌
D.反射性抑制支气管腺体分泌
E.直接抑制咳嗽中枢

答案

参考答案:B

单项选择题

The fridge is considered a necessity. It has been so since the 1960s when packaged food first appeared with the label: "store in the refrigerator. "
In my fridgeless fifties childhood, I was fed well and healthy. The milkman came daily, the grocer, the butcher, the baker, and the ice cream man delivered two or three times a week. The Sunday meat would last until Wednesday and surplus bread and milk became all kinds of cakes. Nothing was wasted, and we were never troubled by rotten food. Thirty years on, food deliveries have ceased, fresh vegetables are almost unobtainable in the country.
The invention of the fridge contributed comparatively little to the art of food preservation. A vast way of well tried techniques already existed—natural cooling, drying, smoking, salting, sugaring, bottling…
What refrigeration did promote was marketing—marketing hardware and electricity, marketing soft drinks, marketing dead bodies of animals around the globe in search of a good price.
Consequently, most of the world’s fridges are to be found, not in the tropics where they might prove useful, but in the wealthy countries with mild temperatures where they are climatically almost unnecessary. Every winter, millions of fridges hum away continuously, and at vast expense, busily maintaining an artificially cooled space inside an artificially heated house—while outside, nature provides the desired temperature free of charge.
The fridge’s effect upon the environment has been evident, while its contribution to human happiness has been insignificant. If you don’t believe me, try it yourself, invest in a food cabinet and turn off your fridge next winter. You may miss the hamburgers, but at least you’ll get rid of that terrible hum.

Who benefited the least from fridges according to the author

A.Inventors
B.Consumers
C.Manufacturers
D.Traveling salesmen

阅读理解与欣赏

阅读下面文章,完成以下题目

宣德青花瓷

刘润民

①明代景德镇御窑厂烧造的宣德青花瓷器,在中国陶瓷发展史上具有重要的地位。它以其古朴典雅的造型,晶莹艳丽的釉色,多姿多彩的纹饰而闻名于世,明代与其他各朝的青花瓷器相比,其烧制技术达到了最高峰,成为我国瓷器名品之一,被称为中国青花瓷器的典范。《景德镇陶录》评价宣德瓷器:“诸料悉精,青花最贵。”

②宣德青花烧造数量上也是空前的,据《大明会典》记载,宣德八年(1433),朝廷一次就下达了要景德镇烧造龙凤瓷器四十四万三千五百件的任务,其中青花占大多数,由此可见其烧造规模、数量之大。产品不仅供宫廷之需,而且也作为商品大量行销海外,以及对国外入贡者的答赠,成为东西文化交流的见证。

③当时宣德皇帝和皇后对艺术品具有浓厚的兴趣,很大程度上促进了手工艺术方面的发展,除了瓷器外,宣德朝的铜器、雕漆及织绣等,俱也成就辉煌。

④宣德青花常见的有:盘(敞口、撇口、折沿、菱花口),碗(撇口、花口、墩式、鸡心式、合碗、卧足碗、十棱高足碗),瓶(梅瓶、玉壶春瓶、胆瓶、贯耳瓶、四方委角瓶、天球瓶),罐(蟋蟀罐、盖罐、出戟盖罐),花盆(海棠式花口盆、八棱花盆、四方花盆),壶(梨形壶、执壶、茶壶、僧帽壶),洗(花口洗、卧足洗、菱花式洗),砚滴,花浇,钵,盒,三足炉,八方烛台等。除此之外,当时受外来文化的影响,许多造型模仿西亚地区的金银器和陶器,如花浇、鱼篓尊、盘座、折沿盆等。整体风格是雄伟浑厚,庄重古朴,大件器皿增多,均为分段粘接而成,胎体厚,制作非常规整,比例协调,没有变形现象,大盘底足浅,足下部内敛。小件器物造型精致细巧,厚薄适度,具有典雅、秀美的艺术风采。

⑤胎体精密细腻,胎质洁白,大盘、大罐多是无釉细砂底,足边有火石红斑点。中小件器物是釉底。釉面肥厚滋润,光泽柔和不刺眼,多白中泛青,俗称“亮青釉”。有模仿橘皮纹,但没有开片,釉中气泡密集,大小不一。青花用料有进口、国产两种,往往是根据纹饰的不同而决定使用哪种钴料描绘哪个部位的纹饰。从宫中传世品来看,以进口料描绘为主。这种进口青料来自波斯,叫苏麻离青(亦称苏泥勃青)。是郑和下西洋带回来的。与国产料不同的是,含铁量特别高,含锰量低,所以呈色深沉浓艳,有着自然晕散的艺术效果,料色熔融在釉中,出现银黑色结晶斑点,在一定光线下有锡光色,而且呈三角形结晶,用手抚摸釉面凹凸不平,用这种青料描绘的纹饰具有中国画的水墨韵味,被视为无法模仿的特色。

⑥宣德青花纹饰上具有突出的时代特征,改变了元代青花层次繁密的布局风格及粗犷的画法,装饰上渐趋疏朗,规矩中富于变化。注重从自然界选取素材。植物纹有:缠枝莲、番莲、束莲、枇杷纹、牡丹花、菊花、栀子花、百合、灵芝、牵牛花、石榴、荔枝、海棠花、山茶花、宝相花、射干花、松竹梅、葡萄、瓜果、桃、西瓜等。最常见的是以茶花、菊花、牡丹、莲花组合描绘在一起。缠枝莲花在宣德青花瓷中也较为多见。描绘非常流畅,自由活泼,画法布局多样,讲究变化,显示了当时装饰艺术的高超。动物纹有:龙(团龙、海水龙、龙穿莲、龙穿花)、凤、鱼、麻雀、海兽、狮子等。宣德龙纹描绘在明代最富有生气,龙首威武昂扬,龙身舒展修长,矫健勇猛,体现宫廷龙纹的威慑感。人物纹,由于受青花原料易晕散的限制,烧造的不是很多。主要有:仕女、吹箫引凤、婴戏图,仕女常是和庭园楼阁组合描画在一起,如仕女游园、赏月、拜月等。海水纹在宣德青花中大量出现,也最为擅长,多是用作辅助纹饰,采用写实手法描绘,海水起伏翻腾,汹涌澎湃,有气势。另外梵文、藏文也开始出现于青花瓷器上。综观宣德青花纹饰,其取材范围广泛,绘画讲究气势壮阔,具有很强的艺术感染力。

⑦名声显赫的宣德官窑青花,作为宫廷用瓷和精美的艺术品,具有独特的艺术魅力,一直被后人推崇。自明成化朝开始到晚清民国均大量仿制,最为成功的是清代康熙、雍正二朝,达到了相当高的水平,如不仔细对比辨别,极易混淆。

(选自《文史知识》01.1,有删改)

小题1:.宣德青花瓷器,之所以在中国陶瓷发展史上具有“重要的地位”,是因为:

①______________________________________

②______________________________________

小题2:.第④⑤两段,分别从□□和□□两方面,介绍了宣德青花瓷器的艺术风采和特色。

小题3:.宣德青花瓷器纹饰的特点,具体表现在:

①_______________________________________

②_______________________________________

小题4:.对全文内容理解不正确的两项是 (      ) (      )

A.中国历代的青花瓷器,是中国瓷器的典范。

B.用进口青料描绘的纹饰,具有中国画的水墨韵味。

C.宣德青花的纹饰比元代纹饰,由繁密变为疏朗。

D.宣德官窑烧制的青花瓷器,是专为宫廷提供的用瓷。 E.明代青花瓷上的龙纹描绘,数宣德年间的最富有生气。

F.康、雍两朝仿制的青花瓷水平很高,不易辨别真伪。

小题5:.从全文内容看,青花瓷器在明代得以极大发展的原因,除了帝王的“浓厚兴趣”外,还有哪些原因?请逐条写出。

答:______________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________