题目内容

7．Many people hurt their backs when they try to lift heavy things from the floor．It is easy to hurt your back muscles when you pick up a heavy object．However，there is a correct way to lift things from the floor if you pick up or lift heavy objects correctly，you probably will not hurt your back．
To lift something from the floor correctly，first bend your knees and squatdown．Keep your back straight．Do not bend over from your waist； keep your back and hips and waist in a line．If you bend over，the muscles in your lower back can become wounded very easily．If you keep your back and hips stronger，they have much more support．The other muscles can then help the lower back muscles．
As you squat down，try to get as close to the object as possible．For example，if you are going to pick up a heavy box，squat down directly in front of it．Maybe you will have to spread your knees and legs．Put one knee on each side of the box．Remember at all times to keep your back straight．
Put your hands under the objects that is in front of you，between your knees．
To lift objects，you should stand up slowly．Use your leg muscles in order to stand up．In other words，lift with your legs，not with your back．

16．If you try to lift heavy things from the floor，B．
A．you will hurt your back                  B．you may hurt your back
C．you must hurt your back                  D．you never hurt your back
17．According to the passage，how can you avoid hurting yourself while lifting things from the floor？C
A．To get yourself insured．
B．Never to lift heavy things．
C．To use the correct way to lift things．
D．To do body exercises to have more strength．
18 To lift a heavy object mainly depends on yourA．
A．legs          B．back         C．knees         D．hands
19．To lift a heavy box，the most important thing you should do isD
A．to put your hands under the box       B．to bend your knees and squat down
C．to put one knee on each side of it    D．to keep your back straight at all times
20．When you lift a heavy thing，which of the following is NOT true？B
A．Keeping your back and hips and waist in a line．
B．Putting one knee in front of the thing．
C．Standing up slowly．
D．Putting your hands under the thing between your knees．
21．What does the underlined word"squat"mean in the passage？B
A．站            B．蹲            C．爬             D．糖．

分析 本文是一篇科教类阅读，许多人从地上搬重物时会伤到背部，当你拿起沉重的物品时，很容易伤到背部肌肉，然而，有一个正确的方法，可以将东西吊从地板上如果你选择正确或抬重物，可能不会伤害你的背部．本文以此展开，主要描述了一些人之所以总是弄伤背部的原因，并对此提出了几点详细的建议．

解答 16．答案：B．细节理解题．根据"It is easy to hurt your back muscles when you pick up a heavy object．"可知，当你拿起沉重的物品时，很容易伤到背部肌肉、故应该是可能会伤到背部肌肉．故选B．
17．答案：C．细节理解题．根据"However，there is a correct way to lift things from the floor if you pick up or lift heavy objects correctly，you probably will not hurt your back．"可知，你使用正确的方式去抬重物，可能不会伤到背部．故选C．
18．答案：A．细节理解题．根据"In other words，lift with your legs，not with your back．"可知，抬东西用胳膊．故选A．
19．答案：D．细节理解题．根据"Remember at all times to keep your back straight．"可知，抬东西时应保持背部挺直．故选D．
20．答案：B．细节理解题．根据"Put one knee on each side of the box．"可知，把膝盖放在盒子的两侧，而不是把膝盖放在盒子前．故选 B．
21．答案：B．词义猜测题．根据"As you squat down，try to get as close to the object as possible．"可推测出，句意为当你蹲下时，尝试尽可能靠重物近．故squat意为蹲．故选B．

点评 本文是一篇科教类阅读，题目涉及词义猜测题，细节理解题．做题时学生应仔细阅读原文，把握文章主要内容，联系文章上下文内容并结合所给选项含义，从中选出正确答案，一定要做到有理有据，切忌胡乱猜测．

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