To lift something from the floor correctly, first bend your knees and squat down. Keep your back and hips(臀部) and waist (腰部) in a line. If you bend over, the muscles in your lower back can become hurt 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 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.

36. The underlined word "squat" means________.

A. to bend over your waist             B. to bend yourself by bending your legs

C. to lower yourself by bending your legs  D. to stand straight

37. You should keep your back straight so that________.

A. the muscles can’t be hurt    B. the muscles will have more support

C. you seem to be stranger     D. you will get more muscles

38 The correct way to lift something heavy from the floor is________.

A. to bend over from your waist first

B. to bend your knees and squat down first

C. to keep your back in a line

D. to put your hands under the object

39. What lifts the object in fact?

A. The muscles of your arms.   B. The muscles of your back.

C. Your hands.               D. Your leg muscles.

　　The dictionary is often used merely to determine the correct spelling of words, or to find out the accepted pronunciation. But such use is perhaps not the most important from an intellectual point of view. Dictionaries may, however, have social importance. It is often a matter of some concern to the person using the dictionary that he should not suggest to others, by misspelling a word in a letter, or mispronouncing it in conversation, that he is not educated.

　　Yet, despite familiarity with the dictionary, the average person is likely to have many wrong ideas about it, and no real concept of how to use it profitably, or interpret it correctly. For example, it is often believed that the mere presence of a word in a dictionary is evidence that it is acceptable in good writing. Though most dictionaries have a system of marking words as obsolete （废弃的）, or in use only as slang（俚语）, many people, more especially if their use of a particular word has been challenged, are likely to conclude, if they find it in a dictionary, that it is accepted as being used by writers of established reputation. This would certainly have been true of dictionaries a hundred years ago. For a long time after they were first firmly established in the eighteenth century, their aim was to include only what was used by the best writers, and all else was suppressed, and the compiler frequently claimed that his dictionary contained no “low” words. Apparently this aspect of the dictionary achieved such importance in the mind of the aver age person that most people today are unaware of the great change which has taken place in the compilation of present-day dictionaries.

(1) Dictionaries may have social importance in that ________.

[　　]

A．they are often a matter of some concern to a person

B．their users do not want others to know the dictionaries

C．misspellings often appear in letters

D．misspellings would mean that the person is not educated

(2) One of the wrong ideas the average person has about the dictionary is that ________.

[　　]

A．no one is actually familiar with dictionaries

B．words in a dictionary are taken from good writings

C．he has little idea of how to use it profitably

D．people know little about how dictionaries interpret words

(3) From an intellectual point of view, ________.

[　　]

A．the dictionary should not be used to determine correct spelling

B．to determine correct spelling is not the most important use of a dictionary

C．dictionaries have social importance

D．the accepted pronunciation is not as important as the correct spelling

(4) We can infer from this passage that present day dictionaries ________.

[　　]

　　The dictionary is often used merely to determine the correct spelling of words, or to find out the accepted pronunciation. But such use is perhaps not the most important from an intellectual point of view. Dictionaries may, however, have social importance. It is often a matter of some concern to the person using the dictionary that he should not suggest to others, by misspelling a word in a letter, or mispronouncing it in conversation, that he is not educated.

　　Yet, despite familiarity with the dictionary, the average person is likely to have many wrong ideas about it, and no real concept of how to use it profitably, or interpret it correctly. For example, it is often believed that the mere presence of a word in a dictionary is evidence that it is acceptable in good writing. Though most dictionaries have a system of marking words as obsolete （废弃的）, or in use only as slang（俚语）, many people, more especially if their use of a particular word has been challenged, are likely to conclude, if they find it in a dictionary, that it is accepted as being used by writers of established reputation. This would certainly have been true of dictionaries a hundred years ago. For a long time after they were first firmly established in the eighteenth century, their aim was to include only what was used by the best writers, and all else was suppressed, and the compiler frequently claimed that his dictionary contained no “low” words. Apparently this aspect of the dictionary achieved such importance in the mind of the aver age person that most people today are unaware of the great change which has taken place in the compilation of present-day dictionaries.

(1) Dictionaries may have social importance in that ________.

[　　]

A．they are often a matter of some concern to a person

B．their users do not want others to know the dictionaries

C．misspellings often appear in letters

D．misspellings would mean that the person is not educated

(2) One of the wrong ideas the average person has about the dictionary is that ________.

[　　]

A．no one is actually familiar with dictionaries

B．words in a dictionary are taken from good writings

C．he has little idea of how to use it profitably

D．people know little about how dictionaries interpret words

(3) From an intellectual point of view, ________.

[　　]

A．the dictionary should not be used to determine correct spelling

B．to determine correct spelling is not the most important use of a dictionary

C．dictionaries have social importance

D．the accepted pronunciation is not as important as the correct spelling

(4) We can infer from this passage that present day dictionaries ________.

[　　]