问题 选择题

维生素是维系人类生命和健康的营养素之一,自然界还有很多物质中都含有维系生命活动的营养素.看看在你熟悉的下列物质中不属于营养素的是哪种?(  )

A.食盐

B.水

C.氧气

D.花生油

答案

糖类物质、脂肪等给人体提供能量,机体构成成分和组织修复需要蛋白质,矿物质、维生素、水等起生理调节功能.所以说:人体所必需的营养素有蛋白质、脂肪、糖类、矿物质、维生素、水等六大类.食盐属于六大类营养素中的矿物质,花生油属于脂肪,氧气不属于六大营养素;

故选C.

阅读理解

阅读下面一篇短文,判断下列句子是否符合短文内容,符合的用“A”表示,不符合的用“B”表示。

Clean water is not only important for people to produce food, but necessary for our life. However, many people in Asia and Africa don't have enough clean water to use. The World Health Organization reports that almost 4,000 children die each day of dirty water or lack (缺乏) of water.

Farmers use 70-85% of the world fresh water to produce food. People usually don't pay much attention to how much water industry(工业) uses, but you may be surprised to know that industry uses 59% of the water in developed countries.

Home use takes up(占据) only 8% in the world. But as cities grow, more water will be used. The local government has to try to make people use less water.

In 60% of European cities, people are saving water by using less. They even keep waste wafer for other use.

In Australia, the government has encouraged people to collect rainwater and recycle water from showers for a second use.

The US Environmental Protection Agency has made a water saving program to encourage families and businesses to check their water use and save more water. Scientists and the UN are looking for good water management as the key to solving the problem. We can all work together to protect our fresh water in our daily life.

小题1: In developed countries, most water is used by industry.  

小题2:People in Asia have enough clean water to use.  

小题3:To save water, Australians and Europeans both choose to recycle water for a second use.

小题4: According to the passage, scientists have found good ways to deal with water problems.  

小题5:Home use of water will increase because of the growing of cities.

问答题 简答题