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 (弯曲) 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 y our 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.
【小题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 hipsD.The knees
【小题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
【小题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
【小题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
【小题5】What does “In other words” mean? ________
A.总而言之B.换句话说C.在其它话中D.在其它单词中

In the past ten years, many scientists have studied the differences between men and women. And they all got the same answer: The sexes(性别) are different, because their brains are different. And this, the scientists say, makes men and women see the world in different ways.
Boys, for example, generally are better than girls at mathematical(数学的) ideas. Boys also generally are better than girls at the kind of hand and eye movements necessary for ball sports. Girls, on the other hand generally start speaking earlier than boys. And they generally(通常) see better in the dark than boys and are better at learning foreign languages.
What makes men and women better at one thing or another? The answer is the brain. The brain has two sides connected by nerve(神经) tracks. The left side generally is used for mathematics, speech and writing. The right side is used for artistic creation(创造) and the expression for emotions(情感). In men and women, different areas in each side of the brain develop differently. In boys, for example, it’s the area used for mathematics. In girls, it is the area used for language skills. Another interesting difference is that the two sides of a man’s brain are connected by a smaller nerves than the two sides of a woman’s brain are.
【小题1】Which of the following is best to outline(概括) the article?

A.Research on the Brain
B.Differences Between Men and Women
C.People’s Different Brains
D.Who Are Better, Boys or Girls
【小题2】___________ men and women think differently.
A.sex makes
B.The different brains make
C.The different experiences make
D.The influences(影响) of society make
【小题3】According to the article, girls are generally better than boys at ________ in your school.
A.mathematicsB.physicsC.EnglishD.Chemistry
【小题4】Which of the following is true?
A.The left side of brain in boys generally develops better than that in girls.
B.The left side of brain in girls generally develops better than that in boys.
C.Men are better than women in all things.
D.The area in girls used for language skills develops better.
【小题5】In men and women the number of nerves connecting the halves of brain________ .
A.is the sameB.is differentC.is zeroD.can’t be found out

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