问题 问答题

备考期间同学们很辛苦,要注意生活中的点滴才能保证学考顺利进行,取得好成绩.请你用所学知识回答下列问题:

(1)要常开窗户呼吸新鲜空气.你能闻到窗外的花香是因为______(请从化学微观角度解释).

(2)厨房中离不开菜刀,防止菜刀生锈的措施是______(一条即可).

(3)严禁吸烟.香烟的烟雾中含有4000多种化学物质,其中大多数是有害物质,而最为有害的物质是______、尼古丁、焦油和重金属盐等.

(4)均衡膳食,有利于身体健康.小明家某天晚饭的食谱如下:

主食馒 头
副食红烧排骨、花生米、清蒸鱼
饮料牛 奶
从营养学的角度考虑,你建议在食谱中应该增加______(填写下列各项的序号).

①油饼        ②烧豆腐        ③凉拌黄瓜       ④炒鸡蛋.

答案

(1)能闻到窗外的花香是因为:分子在不断地运动的;故答案为:分子在不断地运动

(2)防止菜刀生锈的措施有:保持菜刀的清洁与干燥、涂抹一层油等;故答案为:保持菜刀的清洁与干燥

(3)香烟的烟雾中含有:一氧化碳、尼古丁、焦油和重金属盐等有害物质,故答案为:CO

(4)人体的六大营养物质是:水、无机盐、蛋白质、脂肪、糖类和维生素,蛋白质、脂肪、糖类是给人体提供能量的物质;食谱中缺少维生素,因此需要吃凉拌黄瓜.故答案为:③

阅读理解

阅读理解。

     Researchers are placing robotic dogs (机器狗 )in the homes of lonely old people to determine whether

they can improve the quality of life for humans. Alan Beck, an expert in human-animal relationship, and

Nancy Edwards, a professor of nursing, are leading the animal-assisted study concerning the influence of

robotic dogs on old people's depression, physical activity, and lefe satisfaction. "No one will argue that an

older person is better off being more active, challenged, or stimulated (刺激), "Edwards points out."The

problem is how we promote (使……成为现实) that,especially for those without riends or help. A robotic

dog could be a solution."

     In the study, the robot, called AIBO, is placed for six weeks in the houses of some old people who live

alone. Before placing AIBO in the home, researchers will collect baseline data for six weeks. These old

people will keep a diary to note their feelings and activity before and after AIBO. Then, the researchers will

review the data to determine if it has inspired any changes in the life of its owner.

     "I talk to him all the time, and he responds to my voice," says a seventy-year-old lady, "When I'm

watching TV, he'll stay in my arms until he wants down. He has a mind of his own."

     The AIBOs respond to certain orders. The researchers say they have some advantages over live dogs,

especially for old people. Often the elderly are disabled and cannot care for an animal by walking it or

playing with it. A robotic dog removes exercise and feeding concerns.

     "At the beginning, it was believed that no one would relate to the robotic dog, because it was metal and

not furry." Beck says. "But it's amazing how quickly we have given up that belief."

     "Hopefully, down the road, these robotic pets could become a more-valuable health helper. They will

record their masters' blood pressure, oxygen levels. Or heart rhythms. ASIBOs may even one day have games

that can help stimulate older people's minds."

1. The purpose of Beck and Edwards' study is to _____.

A. understand human-animal relationship

B. make lonely old people's life better

C. find the causes of old people's loneliness

D. promote the animal-assisted research

2. In the research, the old people are asked to _____.

A. note the activities of AIBOs

B. keep AIBOs at home for 12 weeks

C. record their feelings and activity

D. analyze the collected information

3. What is the advantage of AIBO over live dogs?

A. It is easier to keep at home.

B. It can help the disabled people.

C. It responds to all the human orders.

D. It can watch TV with its owner.

4. The author seems to suggest that the future robotic dogs may _____.

A. cure certain diseases

B. keep old people active

C. change people's beliefs

D. look more like real gods

单项选择题