题文

阅读理解。

Are you carrying too much on your back at school? You're not alone. Back experts (专家) in the USA are worried about that young students are having back and neck problems because they are carrying too much in their backpacks.      "It hurts my back when I run," said Ebelin Reyes, a student in Virginia. "It's hard to get up the stairs with my backpack because it's too heavy." Students have to carry heavy backpacks on their backs for a whole week's study. Ebelin is one of them. They have regular (固定的) backpacks with two straps (带子) to carry them, but a number of students with heavy loads (负担) have switched to rolling backpacks. The backpacks have wheels and can roll on the ground. Shirley Park's backpack weighs 10 kilos, and she said, "I'll change to a rolling backpack because I am starting to have back pain."      How much is too much? Experts say that students should carry no more than 10% to 15% of their own body weight. A few students have had a good idea to lighten (减轻) the load: less homework.      Doctor's suggestions:      (1) Lighten the load. Take home only the books the students need that day.      (2) Wide straps are better. They can send out weight over your shoulders (肩) and be sure to wear backpacks with two straps.      (3) The heaviest things should be packed closest to the back.      (4) Bend (弯曲) both knees when you pick up the pack, don't just bend over the waist (腰).

1. The main idea of the passage is about _____.

A. the problems made by rolling backpacks B. the advantage of backpacks C. the best backpacks for students D. how to lighten students' backpacks

2. From what Ebelin Reyes and Shirley Park said, we know _____.

A. students like to carry heavy backpacks B. students have to do a lot of homework C. backpacks with wheels are bad for students D. students have no time to play because of heavy backpacks

3. The underlined word "switch to" means _____.

A. use for B. turn to C. catch up D. begin to use

4. According to the experts, it's better for a student of 40 kilos to carry a backpack of _____ at most.

A. 10 kilos B. 8 kilos C. 6 kilos D. 7 kilos

5. If students follow the doctor's suggestions, they _____.

A. may do less homework B. may feel their backpacks are lighter C. can learn how to enjoy themselves D. will know why to wear heavy backpacks

题型：阅读理解  难度：中档

答案

1-5 D B D C B

据专家权威分析，试题“阅读理解。 Are you carrying too much on your back at school?..”主要考查你对  科教类阅读  等考点的理解。关于这些考点的“档案”如下：

科教类阅读

考点名称：科教类阅读

• 科普类的阅读：
  科普类的阅读理解包含介绍科学知识、社会知识的短文。阅读这类短文时，要以事实为中心进行思考，抓住事物的特征、用途、相互关系等。
  如果是介绍社会现象的文章，要掌握所谈现象的内涵。

• 答题技巧：
  1. 加强整体意识，把握文章的主要内容。在阅读的时候可给段落标上序号，并给重要的句子和
     关键词做上记号，尤其是各段中心句，为答题提供更快捷更多的信息源。
  2. 审清题干，发觉和把握试题中有效的提示性信息，确认命题的角度、阅读范围和答题方式。
  3. 定位阅读，强化对应意识。同时要注意原文利用和自我加工相结合。