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    nerve 神经 lose one's nerve = lose one's courage 失去勇气 have the nerve to do 有胆量做- 【查看更多】

     

    题目列表(包括答案和解析)

    Sometimes giving someone a helping hand is just simple．But sometimes it works like a 36 that opens a door to a whole new world of understanding．

    Living in a small all-white 　37　 in the Midwest, my family and I were 38　 that we were safe from the race riots （暴乱） in some larger cities．That 　39　 when I began working at a bank in a larger city nearby．My family　 40　 gave me advice on whom to avoid, what situation to stay away, and how to 　41　 myself．

    On a snowy　 42　 after work, I guided my second-hand car out onto the street and knew 　43 I didn't have to stop, it would keep running．The battery needed replacing．

    However, as I expected the car choked and died at a red light．Fortunately, to my 　44 ，I saw a pair of headlights coming up．But 　45　 three young black men jumped out of the car, I could hardly　 46 - fear filled me．

    The driver came to my windows and asked if I needed help．I 　47 for a moment and then nodded．The fellows crowded around at once and　 43__ working．As one of them connected the two engines by cables, my nerve （神经） jumped with so much electricity I think I could have charged the 49 and brought it back to life．But thankfully they 50 completed the project．

    I pulled out a few　 51 from the purse, "It's all I have but it's yours, I appreciate the help．Thank you．"

    The driver must have seen the 52　 still in my eyes because he smiled, seeming to be 53 by my panic, and then waved his hand, "You　 54　 it．Just glad to help．"

    This experience taught me that I should never simply 　55 anyone according to their skin color or race or wealth．

    36．A．push　　　　 　 B．key　　　　　　 　 C．car　　　　 　　　　 D．handle

    37．A．house　　　 　 B．dry　　　　　　　 C．country　　　 　　 D．company

    38．A．grateful　　　 B．curious　　　　 　　　 C．upset　　　 　　　 D．hopeful

    39．A．crashed　 　　　　 B．improved　　　 　　　 C．settled　　 　　　　 D．changed

    40．A．cautiously　 　　 B．approximately　　　　　　 C．nervously　　　 　 D．fluently

    41．A．distinguish　　 B．defend　　　　　　 C．behave　　　 　　 D．express

    42．A．morning　　　 B．noon　　　　　　 C．afternoon　　　 　 D．evening

    43．A．even if　　　 B．in case　　　　　　 C．as long as　　 　　 D．now that

    44．A．relief　　　　 　 B．regret　　　　　 　 C．content　　　 　　 D．belief

    45．A．because　　　 B．if　　　　　　　　 C．although　　　 　　 D．when

    46．A．breathe　　 　　　 B．speak　　　　　　 C．drive　　　　 　　 D．survive

    47．A．calculated　 　　 B．choked　　 　　　　 C．hesitated　　　 　 D．screamed

    48．A．set about　　 　 B．set down　　　　　 C．set aside　　　 　　 D．set up

    49．A．engine　　 　　 B．battery　　　　　　 C．headlight　　　 　 D．cable

    50．A．slowly　　　 　 B．briefly　　　　　　 C．gradually　　　 D．quickly

    51．A．dollars　　 　　 B．tickets　　　　 　　 C．cards　　　　　 D．pictures

    52．A．interest　　　 B．confuse　　　　 　　 C．fear　　　　 　　 D．shock

    53．A．amused　　 　　 B．frightened　　　　 C．thrilled　　　　 　 D．disappointed

    54．A．make　　　 　 B．keep　　　　　　 C．spend　　 　　　　 D．earn

    55．A．judge　　　 　　 B．trust　　　　　　　 　　　　　　　　　　　　 C．attack　　　 　　　 D．dislike

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    　　Your body is made up of little cells（细胞）.Each one of these is alive. The big difference between your body and a man-made machine is that every part of your body is alive. Each cell has a job to do and needs energy to do it. If you count correctly, you will find the total is around 60,000,000 cells.

    　　Nerve（神经）cells have long thread like shapes. Bone cells may have branching parts to link with other cells, while red blood cells are round and almost flat.

    　　The cells are alive, but they do not live nearly as long as you do. Each cell lives for a while--from a few weeks to a year or more--and then it dies and a new cell is made to do the same. Only one kind of cell is not made after birth, the brain cells. So a new born baby is the brainiest person in the world, he has a full set of brain cells in thinking.

    　　All our lives, we are storing more and more information in the brain. The fastest rate is at the time when we are young.

    (1) Which one of the following is right?

    [　　]

    A．Everything in the world is made up of little cells.

    B．Nothing has cells but people.

    C．The man-made machine's cells are dead.

    D．Your legs are made up of little ceils.

    (2) The amount of cells in a human body is ______.

    [　　]

    A．about sixty billion

    B．about sixty million

    C．less than sixty million

    D．more than sixty billion

    (3) The shapes of cells in the human body are ______.

    [　　]

    A．about the same

    B．almost round or flat

    C．changed at any time

    D．quite different

    (4) _______ after birth.

    [　　]

    A．Each kind of cell can be made

    B．Not all cells can be made

    C．The brain cells are changeless

    D．The new cells are made unlimitedly

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    　　Your body is made up of little cells（细胞）.Each one of these is alive. The big difference between your body and a man-made machine is that every part of your body is alive. Each cell has a job to do and needs energy to do it. If you count correctly, you will find the total is around 60,000,000 cells.

    　　Nerve（神经）cells have long thread like shapes. Bone cells may have branching parts to link with other cells, while red blood cells are round and almost flat.

    　　The cells are alive, but they do not live nearly as long as you do. Each cell lives for a while--from a few weeks to a year or more--and then it dies and a new cell is made to do the same. Only one kind of cell is not made after birth, the brain cells. So a new born baby is the brainiest person in the world, he has a full set of brain cells in thinking.

    　　All our lives, we are storing more and more information in the brain. The fastest rate is at the time when we are young.

    (1) Which one of the following is right?

    [　　]

    A．Everything in the world is made up of little cells.

    B．Nothing has cells but people.

    C．The man-made machine's cells are dead.

    D．Your legs are made up of little ceils.

    (2) The amount of cells in a human body is ______.

    [　　]

    A．about sixty billion

    B．about sixty million

    C．less than sixty million

    D．more than sixty billion

    (3) The shapes of cells in the human body are ______.

    [　　]

    A．about the same

    B．almost round or flat

    C．changed at any time

    D．quite different

    (4) _______ after birth.

    [　　]

    A．Each kind of cell can be made

    B．Not all cells can be made

    C．The brain cells are changeless

    D．The new cells are made unlimitedly

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    Read the following text and choose the most suitable heading from A－F for each paragraph．There is one extra heading which you do not need．

    (阅读短文并为每段选择一个合适的标题，其中一项是多余的。)

    A．Ways to beautify eyes

    B．Proper use of eye contact(接触)

    C．Techniques of sending eye signals

    D．Colours of people’s eyes

    E．Functions of different parts of the eye

    F．Variety of messages conveyed(传递)through eyes

    1．

    　　The coloured part of the eye is called the iris(虹膜)．There are three basic eye colours－brown, blue and green．A few albino people have red or pink eyes, but these are very rare．Many people believe that blue eyes are more delicate(敏感的)than brown eyes．In fact they are just as tough as brown eyes, although they are more sensitive to light．

    2．

    　　We only see part of the eyeball, although the whole eye is as big as a table tennis ball．Light enters the eye through the pupil(瞳仁)and passes through the lens(晶状体)．The lens focuses the light onto the retina(视网膜)at the back of the eye．The retina sends the signal to the brain along the optic nerve(神经)．The image on the retina is actually upside－down, but the brain corrects it．As we get older our eyesight becomes worse．This happens because the lens isn’t as flexible(柔韧的)as when we are young and the eye muscles are weaker．

    3．

    　　Our eyes are the most important of our five senses．We receive 80％ of our information about the world through our eyes．We also send signals to other people with our eyes．Some eye signals are unconscious(无意识的)．When we look at something nice, our pupils get bigger．But when we don’t like something, they become smaller．We cry when we are unhappy and sometimes when we are very happy．But we can also control some eye signals．For example, we can wink(眨眼)at someone or raise an eyebrow(眉毛)．Sunglasses make someone appear mysterious or dangerous, because they hide that eyes and so we can’t see the signals．

    4．

    　　We find large eyes more attractive．Children have large eyes in proportion(比例)to their heads．Cartoon characters always have large eyes, too．We can’t actually change our eyes, but we can make them look bigger with make－up．Eye make－up isn’t new．Pictures in the Pyramids show that the ancient Egyptians both men and women used it．False eyelashes can make eyelashes longer．Eye shadow on the eyelids(眼睑)can make the eyes look bigger and more dramatic．Glasses can also make eyes look bigger．

    5．

    　　We do not normally look into someone’s eyes for long, especially when they are very close．Eye contact can be very threatening, so people only do it when they want to threaten someone．It is also very intimate(私人的)．This is why lovers gaze into each other’s eyes．It’s also why people don’t look at each other in lifts．

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    阅读理解

    　　Most people would agree that it would be wonderful if humans could regenerate(再生)limbs．Those who have lost their arms or legs would be complete again．The day is still far off when this might happen．But in the last 10 years, doctors have reported regeneration in smaller parts of the body, most often fingers．

    　　Regeneration is not a newly-discovered process．For centuries, scientists have seen it work in some kinds of animals．Scientists now are looking for a way to turn on this exciting ability in more highly-developed animals, including humans．Their experiments show that nerves(神经), cell chemistry and the natural electric currents in the body all seem to have a part in this process．

    　　The body of every animal contains general purpose cells that change into whatever kind of cells the body needs．These cells collect around the wound．They form a mass called a blastema(芽基)．The cells of the blastema begin to change．Some became bone cells, some muscle cells, some skin cells．Slowly, a new part re-grows from the body o

    utward．When completed, the new part is just like the old one．

    　　More than 200 years ago, Italian scientist Luigi Spallanzani showed that younger animals have a greater ability to regenerate lost parts than older animals．So do animals lower on the ladder of evolutionary(进化的)development．The major differences seem to be that less-developed animals have more nerves in their tails and legs than humans do in their arms and legs．

    　　Another helpful piece of information was discovered in the late 1800s．Scientists found that when a creature is injured, an electrical current flows around the wound．The strength of the current depends on how severe the wound is and on how much nerve tissue(组织)is present．

    (1)

    According to the passage, limb regeneration ________．

    [　　]

    A．

    will become a reality in the near future

    B．

    has been reported successful in some patients

    C．

    has a long way to go before it works in humans

    D．

    is a branch of study set up by a group of modern doctors

    (2)

    What animals are lower on the ladder of evolutionary development?

    [　　]

    A．

    More-developed animals．

    B．

    Less-developed animals．

    C．

    Highly developed animals．

    D．

    Fully-developed animals．

    (3)

    According to Luigi Spallanzani’s discovery, ________．

    [　　]

    A．

    humans have less nerves in the limbs than animals

    B．

    some animals may not have so much nerve tissue as others

    C．

    an injured animal regenerates masses of cells round the wound

    D．

    electrical current can be found around the would in younger animals

    (4)

    The passage is mainly about ________．

    [　　]

    A．

    a newly-discovered process

    B．

    research on animal evolution

    C．

    a new medical discovery

    D．

    research on regeneration

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