Many people hurt their backs when they try to lift heavy things from the floor. It is easy to hurt your back muscle(肌肉) when you try to pick up a heavy thing. However, there is a correct way to lift things from the floor. If you pick up heavy things correctly, you probably will not hurt your back.

To lift something from the floor correctly, first bend (彎曲) your knees and lower yourself. Keep your back straight. Do not bent over, from your waist (腰) keep your back and hips (臀部) and waist in a line. If you bent over, the muscles in your lower back can became hurt very easily. If you keep your back and hips straight, the muscles are stronger, because they hold up together. The other muscles can then help the lower back muscles.

As you lower yourself, try to get as close to thing as you can, put one knee on each side of the thing. Remember at all times to keep your back straight. Put your hand under the thing that is in front of you, between your knees.

To lift the thing, 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.

1.Which part of your body is more easily to be hurt when you lift heavy things?

A. The leg muscles. B. The back muscles

C. The hips D. The knees

2.Many people hurt their backs when they lift something because _______.

A. they are not strong

B. the things are very heavy

C. the way to lift the things is not correct.

D. they are very heavy

3.The muscles are stronger if you _______.

A. keep your back, hips and waist in a line

B. bend over from your waist

C. lower yourself

D. get down on your knees

4. To lift heavy things, the most important of all is to _________.

A. stand up slowly B. keep your back straight

C. bend your knees D. put one knee on each side

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：初中英語 來源：2015-2016學(xué)年江蘇無錫太湖格致中學(xué)七年級10月月考英語試卷（解析版） 題型：單項(xiàng)填空

—Shall we have a cup of coffee? —________.

A. Good idea B. That’s OK

C. Thank you D. Me too

查看答案和解析>>

科目：初中英語 來源：2014-2015學(xué)年云南省昆明市兩校八年級下期末英語試卷（解析版） 題型：單項(xiàng)填空

We haven’t seen the film _______.

A.already B. yet C. ever D.never

查看答案和解析>>

科目：初中英語 來源：2015-2016學(xué)年江蘇教育集團(tuán)樹人學(xué)校七年級上第一次月考英語試卷（解析版） 題型：其他題

任務(wù)型閱讀（共10小題；每小題1分，計(jì)10分）根據(jù)短文內(nèi)容完成下表，每空一詞。

Mr Black is our foreign(外國的)teacher. He is a good teacher. He often helps us a lot. And he is nice to every student. His lessons are very interesting. We usually have fun in his lessons. We all like him．

He is a tall and strong man. He says he is 40 years old. But he looks very young. He comes from New York．Now he 1ives in Nanjing with his family. He has a daughter. She is a pretty girl．And she studies in our school, too.

Mr Black is very“in（時尚的）”. He can sing many English songs. We all like to listen to him singing．He also likes sports. He is in the school basketball team. Mr Black likes reading. We often borrow books from him．

I think we are 1ucky to have Mr Black to teach us．

Name

Mr Black

Job

A 1.

Country

____2.

3.

40

What he is like

Mr Black is tall and 4. ．He looks 5. ．

His 6. are interesting.

He often 7. his students.

8.

Music，sports and 9.

Family

He has a pretty 10. ．

查看答案和解析>>

科目：初中英語 來源：2015-2016學(xué)年江蘇教育集團(tuán)樹人學(xué)校七年級上第一次月考英語試卷（解析版） 題型：單項(xiàng)填空

– You dance very well. - _______.

A. You’re welcome. B. Oh, no.

C. You’re right. D. Thank you.

查看答案和解析>>

科目：初中英語 來源：2015-2016學(xué)年廣東順德區(qū)江義初級中學(xué)七年級上第8周周考英語試卷（解析版） 題型：書面表達(dá)

書面表達(dá)（本題10分）根據(jù)要求完成短文寫作，請將作文寫在答題卡指定的位置上。

了解了Becky的家人情況，請 以“My Family” 為題, 寫一篇短文, 介紹你的家庭成員。內(nèi)容包括：

1. 家有四口人，父母，弟弟和我。我們來自北京。

2. 我今年12歲，弟弟10歲。我最愛的運(yùn)動是籃球，弟弟喜歡游泳。

3. 父親是汽車司機(jī)，母親是教師。母親周末喜歡購物。

作文要求：

1. 不能照抄原文; 不得在作文中出現(xiàn)學(xué)校真實(shí)的名稱和學(xué)生的真實(shí)姓名。

2. 語句連貫，詞數(shù)在70個左右。作文的開頭和結(jié)尾已經(jīng)給出，不計(jì)入總詞數(shù)。

My Family

I have a big family. __________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

I love my family very much.

查看答案和解析>>

科目：初中英語 來源：2016屆四川成都七中實(shí)驗(yàn)學(xué)校九年級上10月月考英語試卷（解析版） 題型：其他題

閱讀下面短文，根據(jù)短文內(nèi)容判斷句子的正誤。正確的涂A，錯誤的涂B。（共5小題，每小題2分；計(jì)10分）

Here are some of the fastest animals in the animal world. As you read about them, remember that top speed of hummer runners is 20 to 25 miles an hour. And the fastest human runner can only run at this speed for a few hundred meters.

Heavy people do not run very fast. But some heavy animals can run at amazing

speed. Black rhinos can run at a speed of almost 30 miles an hour, even though they may weigh over 3,500 pounds.

Cheetahs are the fastest land mammals (哺乳動物) over short distances (距離).

They can run at a speed of over 70 miles an hour. But they can get tired quickly and usually stop after a few hundred meters.

Pronghorn antelopes are the fastest land mammals over long distances. They can run at a speed of 35 miles an hour for many miles. Their top speed is probably more than 50 miles an hour.

Hummingbirds are the smallest birds. But they move their wings (翅膀) faster than other birds. Some of them beat their wings 4,500 times a minute.

Ostriches can't fly, but they can run faster than other birds and most other animals as well. They can run at a top speed of 43 miles an hour for a short distance, but can keep up a speed of more than 30 miles an hour over long distance. They are also the largest of all birds, and they lay the largest eggs.

1.Black rhinos can run faster than the fastest human runners.

2.Though cheetahs run very fast, they get tired soon.

3.Pronghorn antelopes are the fastest animals over short distances.

4.Hummingbirds move their wings faster than other birds because they are large.

5.Ostriches can run fast over long distances.

查看答案和解析>>

科目：初中英語 來源：2016屆湖北利川市九年級上第一次月考英語試卷（解析版） 題型：書面表達(dá)

書面表達(dá) （共1題，計(jì)15分）

眾所周知，中國是世界上人口最多的國家，是世界上最大的糧食消費(fèi)國。然而，在我們身邊就有不少浪費(fèi)糧食的現(xiàn)象，請就該現(xiàn)象寫一篇關(guān)于“節(jié)約糧食，反對浪費(fèi)”的倡議書。

要點(diǎn)提示：（1）為什么要節(jié)約糧食？ （2）你對節(jié)約糧食的建議。

要求：1. 包含所有提示要點(diǎn)，意思連貫、語句通順。 2. 不少于80詞。

Hello,everyone!As we know

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

查看答案和解析>>

科目：初中英語 來源：2016屆遼寧遼陽首山鎮(zhèn)第二初級中學(xué)九年級10月月考英語試卷（解析版） 題型：閱讀理解

Do you know what the White House is? Perhaps some of you do, while others don’t.

The White House is a house in Washington. The president of the U.S.A. lives in it. It’s really white. But do you know why the White House is white? The story happened in 1812. That year England was at war(戰(zhàn)爭) with America. The British army got to Washington and set the president’s house on fire. ( set…on fire放火燒……) In 1814, in order to

hide the marks(痕跡) of the fire, the stone walls of the president’s house were painted white and it has been the “White House” ever since.

1. White House is a house for______.

A. the American people

B. the soldiers of U.S.A.

C. the presidents of U.S.A.

D. the patients of U.S.A.

2.England fought with America in________

A. 1810 B. 1812 C.1814 D.1916

3.The house is called “White House” because ________.

A. it’s covered with snow

B. the house is very clean

C. the stone walls of the house were painted white

D. they like white color

4.The White House was painted white because________.

A. the house is old

B. the house is new

C. it was once on fire and was with marks

D. they have enough paint

5.“ever since” means________.

A. never B. once C. from then on D. before

查看答案和解析>>

同步練習(xí)冊答案