问题 单项选择题

The domestic economy in the United States expanded in a remarkably vigorous and steady fashion. The revival in consumer confidence was reflected in the higher proportion of incomes spent for goods and services and the marked increase in consumer willingness to take on installment debt. A parallel strengthening in business psychology was manifested in a stepped-up rate of plant and equipment spending and a gradual pickup in expenses for inventory. Confidence in the economy was also reflected in the strength of the stock market and in the stability of the bond market. For the year as a whole, consumer and business sentiment benefited from the ease in East-West tensions.

The bases of the business expansion were to be found mainly in the stimulative monetary and fiscal policies that had been pursued. Moreover, the restoration of sounder liquidity positions and tighter management control of production efficiency had also helped lay the groundwork for a p expansion. In addition, the economic policy moves made by the President had served to renew optimism on the business outlook while boosting hopes that inflation would be brought under more effective control. Finally, of course, the economy was able to grow as vigorously as it did because sufficient leeway existed in terms of idle men and machines.

The United States balance of payments deficit declined sharply. Nevertheless, by any other test, the deficit remained very large, and there was actually a substantial deterioration in our trade account to a sizable deficit, almost two-thirds of which was with Japan. While the overall trade performance proved disappointing, there are still good reasons for expecting the delayed impact of devaluation to produce in time a significant strengthening in our trade picture. Given the size of the Japanese component of our trade deficit, however, the outcome will depend importantly on the extent of the corrective measures undertaken by Japan. Also important will be our own efforts in the United States to fashion internal policies consistent with an improvement in our external balance.

The underlying task of public policy for the year ahead--and indeed for the longer run-- remained a familiar one.- to strike the right balance between encouraging healthy economic growth and avoiding inflationary pressures. With the economy showing sustained and vigorous growth, and with the currency crisis highlighting the need to improve our competitive posture internationally, the emphasis seemed to be shifting to the problem of inflation. The Phase Three program of wage and price restraint can contribute to reducing inflation. Unless productivity growth is unexpectedly large, however, the expansion of real output must eventually begin to slow down to the economy’s larger run growth potential if generalized demand pressures on prices are to be avoided.

It can be inferred from the third paragraph that the author’s attitude toward the reduction of the international payments deficit seems()

A. bitter-sweet

B. optimistic

C.sympathetic

D.depressing

答案

参考答案:A

解析:

[注释] 推理判断题。从第3段可以推理,作者对降低国际收支逆差的态度是什么从整个段落来看,作者对此问题一方面表示喜,而另一方面又表示忧。可见,作者的态度是甜中有苦、忧喜参半。其他选项均与段落内容不符,故不能入选。

阅读理解与欣赏

阅读下面的文章,完成问题。

最佳饮料——自开水

  ①随着生活水平的提高,各种各样的饮料走进了人们的生活。喝矿泉水、纯净水已是普遍现象。喝雪碧、可乐成了一种时尚,各种名目繁多的功能饮料更是赢得了青少年的青昧,而饮用白开水的人却越来越少。其实,从科学角度来看,任何其他的饮料都无法取代白开水。 

  ②众所周知,水是维持人体正常生理活动所必需的物质,只有保证机体有足够的水分,体内产生的废物才能及时地通过肾脏排出体外。从医学角度上讲,任何饮料都不如白开水对生理健康有价值。白开水最容易解渴,有调节体温、输送养分及清洁身体内部的功能。而且,白开水具有较强的生物活性。对于促进细胞新陈代谢、能量转换、血液循环和维持电解质平衡,都大有益处。白开水不含卡路里,在进入人体后,很容易透过细胞膜,增加血液中血红蛋白含量,增强人体自身免疫功能,提高机体抗病能力。因此,白开水实在是人体最需要的天然“饮料”。  

  ③白开水是由自来水煮沸而来的,其主要成分是水,其中还包含多种矿物质和一些人体需要量极少的微量元素。如钠、钾、钙、镁、锌、铁、铜、铅、氟、碘和硒等。矿物质和微量元素是人体必需的营养素,不能缺乏,但也不能过多。自来水所含的矿物质为矿泉水的1/10, 又是纯净水的10 倍。矿泉水的矿化度一般为200-300 毫升/ 升,自来水为20-30 毫升/ 升,而纯净水只有2-3 毫升/ 升。有关研究表明,自来水中的矿物质和微量元素的含量对人体来说是最适宜的。  

  ④其他的饮料所含糖分和热量一般都偏高,食欲旺盛且过量饮用的人,往往会因糖分和热量摄入过多引起肥胖,食欲不振的人则由于饮料影响正餐,可能导致热量摄入不足而渐趋瘦弱。饮料中的果糖会阻止人体对铜的吸收,引起贫血等病症。饮料中的人工色素、防腐剂在体内蓄积,会干扰多种酶的功能,引起消化不良。再者,饮料中的大量电解质不容易很快从胃肠排空,而是较长时间存在于胃肠内,影响消化吸收,降低食欲,同时还加重了肾脏的负担。另外,通过蒸馏和逆渗透技术加以净化后的纯净水会失去如镁、锌、铁、硒、碘等对人体有益的矿物质,长期饮用纯净水,人体便会缺少某些必要的元素而造成营养失衡,这对处于生长期的青少年来说尤为不利。

  ⑤那么,如何科学地饮用白开水呢? 首先要注意喝水时间。饭前饭后半小时和餐中都不宜大量饮水,以免冲淡唾液、胃液,导致消化不良;最好在两顿饭中间适量饮用。其次要掌握喝水的量。成人每天需500 ~3000 毫升,要一次性将一整杯水喝完,这样有利于身体真正吸收;最好每隔l ~2 小时喝一杯,不要等到有口渴感觉时才饮水。再者要喝新鲜开水。饮用水储存时间不宜过长,否则其中的亚硝酸盐含量就会上升,可转换为有致癌作用的亚硝胺。将水加热到100 ℃并持续沸腾3 分钟,等降温到30 ℃以下后最适合安全饮用。而生水、不开的水、重新煮开的水、千滚水( 反复煮沸的水) 、蒸锅水( 蒸馒头等的剩锅水) 和老化水( 长时间贮存不动的水) 等,是绝对不可饮用的。

1.为什么说白开水是生活中的最佳饮料?

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2.请说说第③段中画线句子用了哪几种说明方法并分析其作用。

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3.分析下面句中加粗字的表达效果。

从医学角度上讲,任何饮料都不如白开水对生理健康有价值。

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4.根据对阅读内容的理解,说说应该如何正确科学地饮用白开水?

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5.请拟写一则倡导喝白开水的公益广告语。

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单项选择题