阅读《细菌与安全》一文,完成小题。(10分) ①我们都知道细菌无处不在,即使是我

题型:阅读理解与欣赏

问题:

阅读《细菌与安全》一文,完成小题。(10分)

①我们都知道细菌无处不在,即使是我们认为洗得很“干净”的手上也充满了细菌。虽然多数细菌是无害的,但再多无害甚至有益的细菌,也改变不了有害细菌让我们寝食难安的事实。人们吃出问题的例子,只有一小部分跟细菌无关——比如河豚中毒或者对各种食物过敏,其他绝大多数都是细菌惹的祸。

②到目前为止,加热仍然是杀死细菌的最有效手段。一般来说,在121摄氏度下加热15分钟以上。即使没有把细菌全部杀死,剩下的也成不了气候。但是许多食物要是加热到这种程度,就没法吃了。通常的食品加工,只是把细菌的量减少到一定浓度,不会对人产生危害就行了。

③比如说牛奶,所谓巴氏灭菌的“鲜奶”是把牛奶加热到72度左右15秒。经过这样处理,细菌量会减少到初始量的十万分之一,虽然还有不少,但是在冰箱里放两三周,细菌量也不会长到对人有害的地步。如果是超高温灭菌,则把牛奶加热到135度以上,1秒钟就可以杀死几乎所有的细菌,即使是放在常温下也能保证几个月没有问题。当然,这都是指密封保存的情况。如果对着瓶嘴喝一口,这些处理几乎就算白做了,其中的细菌生长速度会大大增加。其他食物也是如此。

④无数食品科学家和工程师花了不计其数的工夫,想要找到比加热更好的杀死细菌的方式。然而到目前为止,最经济实惠、广泛使用的还是加热。中餐原料有很多不注意卫生的地方,但是中餐的安全问题却不严重,关键就在于中餐一般都是经过高温烹饪、现做现吃。西方的蔬菜多数是生吃的,所以从种植、运输、保存到分销的各个环节,都要进行严格监控。否则,沙拉吃下去,就开始拉肚子了。

⑤对于个人来说,注意食品安全,良好的卫生习惯非常重要。厨房、冰箱都是藏污纳垢的地方,经常清洁(比如用酒精、醋等都有不错的效果),并且保持厨房通风干燥,有助于减少细菌。家里的食物,尽量减少存货,做饭做菜,尽量吃多少做多少。因为减价而囤积大量原料,或者做一次饭吃上一两周,都会为细菌繁殖提供广阔的天空。尤其是很多特价的蔬菜、肉、蛋、奶、水果,特价的原因就是积压了很长时间,再买回 * * 存,简直就是考验自己对细菌的抵抗力。

小题1:文中第②段加点的“到目前为止”能否去掉,为什么?(3分)

小题2:你认为细菌与安全之间有着怎样的关系? (3分)

小题3:本文认为应该保持怎样的良好卫生习惯?(4分)

考点:说明文阅读
题型:阅读理解与欣赏

下列个人活期存折账户转睡眠户的条件正确的是()。

A.活期一本通账户人民币余额为零,但有外币活期余额的不转睡眠户;

B.关联借记卡的活期存折账户不转睡眠户;

C.非正常状态的账户不转入睡眠户;

D.办理储蓄国债、保险、基金、代收代付等活期存折账户不在转睡眠户的范围之内,但需人工进行剔除。

题型:阅读理解与欣赏

江北市某公司与江南市某公司签订购销合同,双方签订合同地在江中市,并约定在江西市履行合同,但合同尚未实际履行双方即发生争议。江北市某公司作为原告应向( )人民法院提起诉讼。

A.江北市

B.江南市

C.江中市

D.江西市

题型:阅读理解与欣赏

电传操纵系统存在的问题?

题型:阅读理解与欣赏

For many people today, reading is no longer relaxation. To keep up their work they must read letters, reports, trade publications, interoffice communications, not to mention newspapers and magazines: a never ending flood of words. In (1) a job or advancing in one, the ability to read and comprehend (2) can mean the difference between success and failure. Yet the unfortunate fact is that most of us are (3) readers. Most of us develop poor reading (4) at an early age, and never get over them. The main deficiency (5) in the actual stuff of language itself—words. Taken individually, words have (6) meaning until they are strung together into phrases, sentences and paragraphs. (7) , however, the untrained reader does not read groups of words. He laboriously reads one word at a time, often regressing to (8) words or passages. Regression, the tendency to look back over (9) you have just read, is a common bad habit in reading. Another habit which (10) down the speed of reading is vocalization—sounding each word either orally or mentally as (11) reads.

To overcome these bad habits, some reading clinics use a device called an (12) , which moves a bar(or curtain) down the page at a predetermined speed. The bar is set at a slightly faster rate (13) the reader finds comfortable, in order to "stretch" him. The accelerator forces the reader to read fast, (14) word by word reading, regression and subvocalization practically impossible. At first (15) is sacrificed for speed. But when you learn to read ideas and concepts, you will not only read faster, (16) your comprehension will improve. Many people have found (17) reading skill drastically improved after some training. (18) Charlie Au, a business manager, for instance. His reading rate was a reasonably good 172 words a minute(19) the training; now it is an excellent 1,378 words a minute. He is delighted that how he can (20) a lot more reading material in a short period of time.

第(8)空应选择()

A.reuse

B.reread

C.rewrite

D.recite

题型:阅读理解与欣赏

驾驶员饮酒,每百毫升血液中,酒精含量达到50mg为饮酒驾车。

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