问题 实验题

下表为某医院化验室对甲、乙、丙三人尿液成分分析的结果(单位:g/100mL),请根据表中的有关数据分析回答:

(1)尿液的形成主要与肾脏的___            和_____         __作用有关。

(2)尿液化验指标都正常的是哪一位?___   __。

(3)甲的尿液中含有蛋白质,这可能是____   __部位出现了问题。

(4)根据化验数据,可以推测甲、乙、丙三人中____    ____可能患有糖尿病。

答案

(1)肾小球的过滤 肾小管的重吸收 (2)乙 (3)肾小球 (4)丙

尿的形成主要包括滤过、重吸收两个过程。肾小球的滤过作用:当血液流经肾小球时,除血细胞和大分子蛋白质以外,血浆中的一部分水、无机盐、葡萄糖和尿素等物质,都可以经过肾小球滤过到肾小囊腔内,形成原尿。肾小管的重吸收作用:当原尿流经肾小管时,全部葡萄糖、大部分的水和部分无机盐等被肾小管重新吸收,并且进入包绕在肾小管外面的毛细血管中,送回到血液里,剩下的水和无机盐、尿素等就形成了尿液。尿液中含有葡萄糖可能患有糖尿病。

阅读理解

阅读理解。

     Few of us make money by losing sleep. But three graduate students at Brown University in Providence

built a company around sleep deprivation (睡眠不足).

     Jason Donahue, Ben Rubin and Eric Shashoua were working late nights in Brown's business and

engineering schools. They began thinking about ways to sleep better. They discovered they weren't alone in

burning the midnight oil. Around 20% of Americans get less than six hours of rest a night.

     The friends imagined a smart alarm clock that could track how much time people spend in the most

restorative (有回复作用的) stages of the sleep cycle: REM (rapid eye movement)and deep sleep. What would

it cost to design such a thing? Five years of research, 20 employees, $14 million and a whole lot of doubting

from investors and scientists.

     Their company, Zeo, based in Newton, Mass, launched its product in June, 2009. The Zeo device uses a

headband with tiny sensors (传感器) that scan your brain for signs of four sleep states-REM, light, deep and

waking sleep.The smart alarm clock displays a graph of your sleep pattern and wakes you as you're not in

REM sleep (which is when you're least groggy). In the morning you can upload the data to the company's

Web site, and so track your sleep over time.Most of the feedback comes in the form of Zeo's ZQ score

showing how well you've slept.

     "Zeo allows people to unlock this black box of sleep," says Dave Dickinson, a health-care CEO.

     Whether any of this actually improves sleep is up to the consumer, who will also need to make lifestyle

changes like cutting out alcohol before bedtime or caffeine after 3 pm.

     For now the company is selling Zeo online only. Dickinson also plans to spread it to countries such as

Australia, where sleep deprivation approaches US level

1. Who will support Zeo? 

A. People full of imagination.

B. People suffering sleeping problems.

C. People having access to the Internet.

D. People having bad lifestyles.

2. Why did the three graduate students imagine a smart alarm clock?

A. To wake them up on time in the morning.

B. To earn enough money for their study.

C. To improve the quality of people's sleep.

D. To enjoy their life while working at night.

3. To design the Zeo device, the three graduate students ____.

A. spent much time and money

B. were widely supported by scientists

C. worked by themselves all the time

D. attracted many investors .

4. What can we know from the passage?

A. Zeo has a direct effect on users' lifestyles.

B. It needs more personal efforts to make Zeo function better.

C. A large quantity of Zeo devices have been sold in Australia.

D. Consumers can go to the Zeo company to purchase Zeo in person

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