问题 填空题

(6分)化学与我们的生活息息相关。

(1)为了全民健康,卫生部推广使用强化加铁酱油,这里的“铁”指的是    (填“单质”、“元素”或“原子”)。骨头汤中含有    元素,若人体缺少该元素可能导致骨质疏松。

(2)下列富含糖类的食品有             (填序号)。

①玉米            ②大米          ③植物油           ④鱼

(3)焙制糕点所用的发酵粉,其主要成分在医疗上还可用来治疗胃酸过多,该物质

                (写化学式)。

(4)房屋装修后,装修材料会释放出甲醛、苯等有毒气体,可在室内放一些活性炭,这是利用活性炭的            

(5)关注环境已成为一种生活的态度,“低能耗”、“低废水”、“低废弃物”是低碳理念的重要内涵。下列做法符合低碳理念的是                     

A.发展太阳能、风能等新能源

B.用淘米水浇花

C.家用电器长期处于待机状态

D.推广无纸化办公,双面打印文稿

答案

(1)元素    钙       (2)①②      (3)NaHCO3

(4)吸附性            (5)A B D

题目分析:(1)卫生部推广使用强化加铁酱油,这里的“铁”指的是元素。骨头汤中含有钙元素,若人体缺少该元素可能导致骨质疏松。

(2)①玉米、②大米含有糖类较多;而植物油含有脂肪;鱼含有较多的蛋白质。

(3)焙制糕点所用的发酵粉的主要成分是NaHCO3

(4)活性炭具有很强的吸附性,可以吸附除去有害气体,故房屋装修后,要是有活性炭来吸附除去装修材料释放出甲醛、苯等有毒气体。

(5)发展太阳能、风能等新能源 、用淘米水浇花、推广无纸化办公,双面打印文稿都可以节约资源,减少排放,是符合低碳理念的;而家用电器长期处于待机状态,会增加电能损耗,不符合低碳理念。选ABD。

点评:本题难度不大,主要是识记内容,牢记即可。

阅读理解

I was appreciating my family photos on my computer, admiring my two beautiful babies, when I found a disturbing trend: my laptop was in almost all the pictures. There was my daughter, 8 months old, playing at my feet while I was typing away on the couch. There was me and my son, with the laptop at my side as I held him in my arms.

I’d heard about the Internet addiction before, but always assumed I was something limited to socially challenged guys who played too much World of Warcraft (a computer game). Now it seemed my Internet “habit” is slowly but surely crossing the line. Sometimes I find myself up at midnight, surfing the Web while my family are sleeping. I read news, keep up with friends and write my blog … just for something to do.

It turns out that I’m not the only mama who is addicted to the computer. These moms are contributing to a growing global addiction. There’s a movement among psychiatrists (doctors who specialize in mental diseases) to recognize the Internet addiction as an official mental disorder. And a recent Stanford University national survey found that 14 percent of Internet users find it hard to stay away from it for several days at a time; 9 percent try to hide their “unnecessary Internet use” from their loved ones; 8 percent admit they use the Web as a way to escape problems.

You’re likely not the kind of addict who doesn’t bathe and abuses drugs to help her stay “up” for more online time. You may have noticed, though, that going online has become a necessary part of your life, which, at least, means a load of clothes go unwashed.

It may also mean you’re missing much time with you baby – something you probably do care about.

小题1:From Paragraph 1, we can conclude that _______.

A.the author was busy taking care of her babies

B.the author’s job had something to do with computers

C.the author was not good at taking photos of her babies

D.the author looked after her babies while using the computer.小题2:The author used to think that the Internet addiction is  ________.

A.using the web at midnight

B.keeping up with friends online

C.spending too much time online

D.being addicted to computer games小题3:In medical terms, the Internet addiction is ________.

A.a personal life habit

B.a way to escape problems

C.an official mental disorder

D.the unnecessary use of the Internet小题4:What does the author want to express in the last but one paragraph?

A.Many women still can control their online time.

B.The Internet addiction influences housewives’ lives a lot.

C.Going online has become a necessary part of women’s lives.

D.Many people don’t realize that they are addicted to the Internet.

问答题 简答题