问题 填空题

某品牌燕麦包装上标示的配料如下:①全燕麦片  ②油脂  ③白砂糖  ④维生素A  ⑤钙、铁、锌等元素,请用序号填写下列各空:

(1)配料中能产生能量的物质是______.

(2)该配料中含糖类的物质有______.

(3)下列元素与人体健康关系的叙述正确的是______.

①缺碘易患坏血病  ②幼儿及青少年缺钙易患“大脖子病”

③缺铁会引起贫血  ④缺锌会引起生长迟缓,发育不良

(4)蛋白质是重要的营养物质,处于生长发育期的青少年需要量很大,除奶制品外,很多食物也能提供丰富的蛋白质,

在a.大米b.豆油c.鱼d.鸡蛋e.萝卜五种食物中,能够提供丰富蛋白质的有______.

答案

(1)由燕麦片标签和课本知识可知,能提供能量的营养素为蛋白质、糖类、油脂,①全燕麦片中含有淀粉,淀粉属于糖类;②油脂;③白砂糖属于糖类;能产生能量.

(2)①全燕麦片中含有淀粉,淀粉属于糖类;③白砂糖属于糖类.

(3)①碘是合成甲状腺激素的主要成分,缺乏会患甲状腺肿大.

②钙是构成骨胳和牙齿的主要元素,幼儿及青少年缺钙会得佝偻病和发育不良,故说法错误.

③铁是合成血红蛋白的主要元素,缺铁会患贫血;故说法正确.

④锌影响人的生长和发育,缺乏会食欲,生长迟缓,发育不良;故说法正确.

(4)a大米提供糖类,b豆油提供油脂,c鱼和d鸡蛋提供蛋白质,e萝卜提供维生素.所提供的食物中鱼和鸡蛋能提供丰富的蛋白质.

故答案为:(1)①②③;(2)①③;(3)③④;(4)cd.

选择题
阅读理解

阅读理解。

      We walked in so quietly that the nurse at the desk didn't even lift her eyes from the book. Mum pointed

at a big chair by the door and I knew she wanted me to sit down. While I watched, mouth open in surprise,

Mum took off her hat and coat and gave them to me to hold. She walked quietly to the small room by the lift

(电梯) and took out a wet mop (拖把). She pushed the mop past the desk and as the nurse looked up, Mum

nodded and said, "Very dirty floors."

      "Yes. I'm glad they've finally decided to clean them," the nurse answered. She looked at Mum strangely

and said,"But aren't you working late?"

      Mum just pushed harder, each swipe of the mop taking her farther and farther down the hall. I watched

until she was out of sight and the nurse had turned back to writing in the big book.

      After a long time Mum came back. Her eyes were shining. She quickly put the mop back and took my

hand. As we turned to go out of the door, Mum nodded politely to the nurse and said, "Thank you." 

      Outside, Mum told me, "Dagma is fine. No fever."

      "You see her, Mum?" 

      "Of course. I told her about the hospital rules, and she will not expect us until tomorrow. Dad will stop

worrying as well. It's a fine hospital. But the floors! A mop is no good. You need a brush."

1. When she took a mop from the small room, what Mum really wanted to do was ______. [ ]

A. to clean the floor

B. to make the nurse happy

C. to see a patient (病人)

D. to surprise the story-teller

2. When the nurse talked to Mum, she thought Mum was a ______. [ ]

A. nurse

B. visitor

C. patient

D. cleaner

3. After reading the story, what can we infer (推断) about the hospital? [ ]

A. It was a children's hospital.

B. It has strict rules about visiting hours.

C. The nurses and doctors there don't work hard.

D. A lot of patients come to this hospital every day.

4. Why did Mum go to see Dagma in the hospital? [ ]

A. To give her some messages about Dad.

B. To make sure her room was clean.

C. To check that she was still there.

D. To find out how she was.

5. Which of the following words best describes Mum?[ ]

A. clever

B. hard -working

C. warm -hearted

D. strange