问题 解答题

近期,我国某些地区发生手足口病疫情,引起了社会各界的广泛关注.手足口病是由肠道病毒(EV71)引起的一种传染病.大多数患儿是突然发病,首先表现为发高烧,体温多在38℃以上,同时伴有头痛,咳嗽,流涕等症状,在手、足皮肤或口腔粘膜上出现类似水痘样的小疱疹.5岁以下儿童,尤其是婴幼儿容易感染此病.

病毒寄生在患儿的咽部、唾液和粪便中,不仅可通过唾液、喷嚏、说话时的飞沫传染给别人,还可通过生活用品及餐具等间接传染.

(1)引起手足口病的病原体是______.

(2)从传染病流行的三个基本环节来看,手足口病患者、5岁以下儿童分别属于______、______.

(3)在手足口病流行时,请你为卫生防疫部门提出几点预防措施:______.(至少写出2条措施)

答案

(1)手足口病是一种儿童传染病,又名发疹性水疱性口腔炎.该病以手、足和口腔粘膜疱疹或破溃后形成溃疡为主要临床症状.手足口病是由肠道病毒这种病原体引起的传染病,引发手足口病的肠道病毒有20多种,其中以柯萨奇病毒A16型(Cox A16)和肠道病毒71型(EV 71)最为常见.

(2)传染病流行的三个基本环节是:传染源、传播途径和易感人群.传染源:能够散播病原体的人或动物.传播途径:病原体离开传染源到达健康人所经过的途径叫传播途径,如空气传播、饮食传播、生物媒介传播等.易感人群:对某种传染病缺乏免疫力而容易感染该病的人群叫易感人群,因此,手足病患者属于传染源,5岁以下儿童属于易感人群.

(3)传染病是由病原体引起的,能在生物体之间传播的一种疾病,具有传染性和流行性等特点.传染病能够在人群中流行,必须同时具备传染源、传播途径、易感人群这三个环节,缺少其中任何一个环节,传染病就流行不起来,故传染病的预防措施有三个:控制传染源、切断传播途径、保护易感人群.我为卫生防疫部门提出了2点措施,①托幼等单位做好晨检,发现疑似病人,及时隔离治疗;②对被污染的日常用品、食具等应消毒处理,衣物置阳光下暴晒.

故答案为:

(1)肠道病毒(2)传染源;  易感人群;(3)①托幼等单位做好晨检,发现疑似病人,及时隔离治疗;②对被污染的日常用品、食具等应消毒处理,衣物置阳光下暴晒.

阅读理解

I’ve been writing for most of my life. The book Writing Without Teachers introduced me to one distinction(区别)and one practice that has helped my writing processes tremendously. The distinction is between the creative mind and the critical mind. While you need to employ both to get to a finished result, they cannot work in parallel no matter how much we might like to think so.

Trying to criticize writing on the fly is possibly the single greatest barrier to writing that most of us encounter. If you are listening to that 5th grade English teacher correct your grammar while you are trying to capture a fleeting (稍纵即逝的) thought, the thought will die. If you capture the fleeting thought and simply share it with the world in raw form, no one is likely to understand. You must learn to create first and then criticize if you want to make writing the tool for thinking that it is.

The practice that can help you past your learned bad habits of trying to edit as you write is what Elbow calls “free writing.” In free writing, the objective is to get words down on paper non-stop, usually for 15-20 minutes. No stopping, no going back, no criticizing. The goal is to get the words flowing. As the words begin to flow, the ideas will come from the shadows and let themselves be captured on your notepad or your screen.

Now you have raw materials that you can begin to work with using the critical mind that you’ve persuaded to sit on the side and watch quietly. Most likely, you will believe that this will take more time than you actually have and you will end up staring blankly at the pages as the deadline draws near.

Instead of staring at a blank start filling it with words no matter how bad. Halfway through your available time, stop and rework your raw writing into something closer to finished product. Move back and forth until you run out of time and the final result will most likely be far better than your current practices.

小题1:When the author says the creative mind and the critical mind “cannot work in parallel” in the writing process, he means                .

A.one cannot use them at the same time

B.they cannot be regarded as equally important

C.they are in constant conflict with each other

D.no one can be both creative and critical小题2:What prevents people from writing on is                .

A.putting their ideas in raw form

B.ignoring grammatical soundness

C.attempting to edit as they write

D.trying to capture fleeting thoughts小题3:What is the chief objective of the first stage of writing?

A.To organize one’s thoughts logically.

B.To get one’s ideas down.

C.To choose an appropriate topic.

D.To collect raw materials.小题4:One common concern of writers about “free writing” is that                .

A.it overstresses the role of the creative mind

B.it does not help them to think clearly

C.it may bring about too much criticism

D.it takes too much time to edit afterwards小题5:In what way does the critical mind help the writer in the writing process?

A.It allows him to sit on the side and observe.

B.It helps him to come up with new ideas.

C.It saves the writing time available to him.

D.It improves his writing into better shape.

多项选择题