鑫辉娱乐登录入口下载

鑫辉娱乐登录入口下载大-大学英语三级鑫辉娱乐登录入口下载考前辅导练习十四(2)

鑫辉娱乐官方app下载 Freekaoyan.com/2008-04-06

Passage5

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 big or heavy objects correctly,you probably will not hurt your back.
To lift something from the floor correctly,first bend your knees and squat down. Keep your back straight.Don't 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 hurt very easily.If you keep your back and hips straight,the muscles are stronger,because 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 object that is in front of you,between your knees.
To lift the object,you should stand up slowly.Use your muscles in order to stand up.In other words,lift with your legs,not with your back.

1.To lift a heavy object mainly depends on _____.

A.legs B.back C.knees D.hands

2.To lift a heavy box,the most important thing you should do is _____.

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 straighten your back at all time 

3.When you lift a heavy thing,which of the following is wrong?

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.

4.Choose the correct order in which one lifts a heavy object correctly.

a.Keep your back straight. b.Bend your knees.

c.Spread your knees and legs.d.Squat down.

e.Stand up slowly.

A.a.c.b.d.e B.b.a.c.e.d C.b.d.a.c.e D.b.a.d.c.e

 


相关话题/

  • 领限时大额优惠券,享本站正版鑫辉娱乐登录入口下载鑫辉娱乐官方app下载!
    大额优惠券
    优惠券领取后72小时内有效,10万种最新鑫辉娱乐登录入口下载考证类电子打印鑫辉娱乐官方app下载任你选。涵盖全国500余所院校鑫辉娱乐官方app下载鑫辉娱乐登录入口下载课、200多种职业资格鑫辉娱乐登录入口下载、1100多种经典教材,产品类型包含电子书、题库、全套鑫辉娱乐官方app下载以及视频,无论您是鑫辉娱乐官方app下载复习、考证刷题,还是考前冲刺等,不同类型的产品可满足您学习上的不同需求。 ...
    鑫辉娱乐登录入口下载优惠券 本站小编 Free壹佰分学习网 2022-09-19
鑫辉娱乐(xinhui)官方网站_鑫辉娱乐app下载入口