What do you do if you are hit in the mouth and one of your teeth is knocked out? A dentist(牙醫(yī))may be able to put the tooth back in for you, but you have to get to the dentist first．In the meantime, you have to store the tooth so that it will stay healthy．
The simplest thing to do is put the tooth back into your mouth, or you could put it in milk．Frank Courts, a dentist at the University of Florida, worked with other researchers to find the safest way of keeping knocked-out teeth．He tried putting teeth into milk, into water, and into cell-culture medium(細胞培養(yǎng)液)．He also tried, just drying the teeth in the open air．He used teeth that had to be removed from people’s mouths for various reasons．The teeth were put into one of the solutions(溶液)or stored in the air for one hour．Then cells from the root of the teeth were scraped-off the teeth．Dr．Courts and the others then studied how healthy these cells were．
The cell-culture medium worked best to keep a knocked-out tooth healthy outside the mouth．However, few people keep cell-culture medium handy at home or in school．
The next best thing was milk．But Dr．Courts said that the best thing of all was to wash the tooth and put it right back into its socket(牙槽)in the mouth．For some people, though, this is just too painful or upsetting．So milk will do, until you get your tooth (and your mouth)to a dentist．
小題1:This passage is mainly about             ．
A．how a dentist can save a knocked-out tooth
B．how to keep a knocked-out tooth healthy
C．how Dr．Courts and other researchers made their experiments
D．how to put a knocked-out tooth back into its socket
小題2:The best way to keep a knocked-out tooth healthy outside the mouth is to store it       .
A．in cell-culture mediumB．in milkC．in waterD．in the open air
小題3:Milk can be used instead of cell-culture medium to put a knocked-out tooth in because    ．
A．milk works better to keep the tooth healthyB．milk causes less pain
C．cell-culture medium is not usually handyD．cell-culture medium is more expensive
小題4:“Dr．Courts said that the best of al1 was to wash the tooth and put it right back into its socket in the mouth．”In the sentence, the word “best” means              .
A．cheapest and healthiestB．least painful and cheapest
C．quickest and least painfulD．easiest and healthiest

小題1:B
小題1:A
小題1:C
小題1:D
略
練習冊系列答案
相關習題

科目：高中英語 來源：不詳 題型：完形填空

The park bench was deserted as I sat down to read beneath the long branches of an old willow tree.   31  at life, I have a good reason to frown, for the world was intent on   32  me down.
And if that weren't enough to ruin my day, a young boy out of breath   33 me, all tired from play. He stood   34  in front of me with his head tilted down and said with great excitement, "Look what I found!" In his hand was a   35 . What a pitiful sight, its petals were all worn - not enough rain, or too little light. Wanting him to take his dead flower away and go off to play, I   36  a small smile and then looked away.
But instead of   37  , he sat next to my side and placed the flower to his nose and   38  loudly with certainty, "It sure smells pretty and it must be beautiful, too. That's why I picked it; here, it's for you." The weed before me was dying or dead, not vibrant of   39 , orange, yellow or red. But I knew I must take it, or he might never leave. So I  40  for the flower, and replied, "Just what I need." Again,  41  placing the flower in my hand, he held it mid-air without reason or plan. It was then 42 I noticed for the very first time that the boy could not see: he was 43 .
I heard my voice trembling. Tears shone like the sun as I thanked him for picking the very best one. "You're welcome," he smiled, and then ran off to play, not realizing the  44  he'd had on my day. I sat there and wondered how he managed to see a  45   woman beneath an old willow tree. How did he 46 my self-indulged plight(困境)? Perhaps he'd been  47  with true sight from his heart by God.
Through the eyes of a blind child, at last I could see, the problem was not with the world; the problem was me. For all of those times I myself had been blind. I decided to see beauty, and 48  every second that belongs to mine.  49 I held that dead flower up to my nose and breathed in the  50  of a beautiful rose , I smiled as that young boy. Another flower in his hand was about to change the life of an unsuspecting old man.
小題1:
A．Disappointed
B．Delighted
C．Excited
D．embarassed
小題2:
A．slowing
B．making
C．letting
D．pressing
小題3:
A．stopped
B．supposed
C．informed
D．a(chǎn)pproached
小題4:
A．a(chǎn)bsolutely
B．definitely
C．right
D．rightly
小題5:
A．leaf
B．branch
C．weed
D．flower
小題6:
A．exposed
B．showed
C．managed
D．tried
小題7:
A．leaving
B．a(chǎn)nswering
C．reacting
D．responding
小題8:
A．whispered
B．shouted
C．spoke
D．declared
小題9:
A．styles
B．sizes
C．colors
D．shapes
小題10:
A．left
B．handed
C．reached
D．held
小題11:
A．in pace of
B．in addition to
C．instead of
D．in return
小題12:
A．where
B．before
C．when
D．that
小題13:
A．deaf
B．blind
C．cripple
D．dumb
小題14:
A．impression
B．a(chǎn)ppearance
C．power
D．influence
小題15:
A．self-satisfied s
B．elf-respecting
C．self-educated
D．self-pitying
小題16:
A．a(chǎn)pprove of
B．convince of
C．inform of
D．know of
小題17:
A．presented
B．crowded
C．blessed
D．equipped
小題18:
A．a(chǎn)ppreciate
B．treasure
C．spend
D．a(chǎn)dmire
小題19:
A．As
B．Though
C．Unless
D．Since
小題20:
A．sight
B．shade
C．fragrance
D．flavor

查看答案和解析>>

科目：高中英語 來源：不詳 題型：完形填空

I arrived in the United States on February 6, 1997, but I remember my first day there very clearly. My friend was waiting for me when my plane____26____at Kennedy Airport at three o’clock in the afternoon. The weather was very cold and it was snowing, but I was_____27____
excited to mind. From the airport, my friend and I ______28_____a taxi to my hotel. On the way, I saw the skyline of Manhattan for the first time and I stared_____29_____astonishment at the famous skyscrapers and their_____30_____beauty. My friend helped me unpack at the hotel and then_____31____me because he_____32_____go back to work. He_____33_____to return the next day.
______34____ my friend had left, I went to a restaurant near the hotel to get something to eat. Because I_____35____speak a word of English, I couldn’t ____36____the waiter what I wanted. I was very upset and ____37_____to make some gestures, _____38_____the waiter didn’t understand me. Finally, I______39_____the same thing the man_____40_____the next table was eating. After dinner, I started to walk along Broadway______41_____I came to Time Square with its movie theatres, and huge_____42_____people. I didn’t feel tired so I continued to walk_______43_____the city.
When I returned to the hotel, I couldn’t sleep because I ______44______hearing the fire and police sirens(汽笛) during the night. I______45_____awake and thought about New York. I decided that I had to learn to speak English.
小題1:
A．took offB．landedC．got outD．took down
小題2:
A．tooB．soC．veryD．much
小題3:
A．gotB．took upC．got onD．took
小題4:
A．inB．a(chǎn)tC．forD．to
小題5:
A．old-makeB．man-madeC．newly-makeD．natural
小題6:
A．had leftB．would leaveC．leftD．was leaving
小題7:
A．mustB．had toC．shouldD．ought
小題8:
A．a(chǎn)greedB．saidC．toldD．promised
小題9:
A．Shortly afterB．Long beforeC．ShortlyD．Soon
小題10:
A．couldn’tB．couldC．didn’tD．did
小題11:
A．a(chǎn)skB．sayC．tellD．order
小題12:
A．begunB．startedC．mustD．started to
小題13:
A．a(chǎn)ndB．soC．thenD．but
小題14:
A．orderedB．bookedC．a(chǎn)skedD．got
小題15:
A．onB．forC．a(chǎn)tD．to
小題16:
A．whenB．untilC．a(chǎn)fterD．before
小題17:
A．crowds ofB．groups ofC．crowd ofD．group of
小題18:
A．a(chǎn)roundB．inC．byD．near
小題19:
A．wasB．wentC．keptD．started
小題20:
A．wasB．layC．laidD．were

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

請認真閱讀下列短文，并根據(jù)所讀內(nèi)容在文章后表格中的空格里填入一個最恰當?shù)膯卧~。注意：每個空格只填1個單詞。請將答案寫在答題卡上相應題號的橫線上。
Health researchers have noticed that some groups of people are more consistently healthy than others, and wondered… Is it race? Income? Where you live? In the United States, these disagreements in health outcomes have been the focus of intense research for the past several decades.
Harvard University health policy researcher Ellen Meara says scholars have found some clues as to why some groups of people have more or less disease than others. She says one important factor in people’s health is the amount of education they have.
In her most recent paper, Meara looked at data from the United states census. These counts of people occur every 10 years. Meara and her colleagues examined data from several decades.
“We looked at life expectancy(預測壽命) at age 25,” Meara says.
“How many additional years can you expect to live if you arrive at age 25 and your education has stopped at high school, or sooner? Versus how many years, can you expect to live if you’ve reached aged 25 and you’ve gone on to at least some college…”
Meara says they found that in 1990, a 25-year-old who only had some secondary school could expect to live for a total of 75 years. In 2000, a 25-year-old with some secondary education could also expect to live to the age of 75.
In contrast, for a better educated 25-year-old, they could expect to live to the age of 80 in 1990. Someone with a similar education level in the year 2000, could expect to live to be more than 81 years, 81.6 years to be exact.
Meara says, not only do better-educated people live longer to begin with, but in the past ten years, more educated people have made gains in the length of their lives. Meanwhile, the life expectancy hasn’t changed for less educated people.
Some of these gains can be explained. Meara says researchers know that people who are more educated are more likely to quit smoking cigarettes, or not start at all, compared to people with less education.
“I think it’s a reminder not to be satisfactory,” Meara says. “Just because a population overall appears to be getting healthier, it doesn’t always mean that those advantages and successes that many people have enjoyed really extend into all parts of the population. And I think that’s something to really pay attention to regardless of whether you live in the US or elsewhere.”
Meara points out that education can often determine income---people with more education frequently make more money. This makes them aware of health care, and purchase other resources and services that can keep them healthier. But the data on income do NOT show that people who make more money are automatically healthier.
Meara says education is key. People need to be educated in order to take advantage of opportunities for better health.
Title
The Amount of 小題1:Contributes to People’s Health
 
The less educated people
The 小題2:______ educated people
Comparisons
In 1990
They could live for 75 years
They could live to the age of 80
In 2000
Their life expectancy was the same as in 1990.
They could live to the age of 81.6 小題3:____
小題4:___ of the research
In the past ten years
Their life expectancy remained 小題5:_____.
They’ve made gains in the length of their lives, partly due to their 小題6:__ smoking.
People are getting healthier, but it doesn’t mean that the advantages and successes extend into all parts of the 小題7:____.
Education小題8:____income.
People with more education make more money
Getting more money helps to increase their小題9:___ of health care, which can keep them healthier.
小題10:____
Education is the key to better health.
 

查看答案和解析>>

科目：高中英語 來源：不詳 題型：完形填空

I ran into a stranger as he passed by. "I'm so  36 !" was my reply. Then he said, "Excuse me too. I wasn't even   37 you" .We were very polite, this stranger and I.
  38  at home, a different story is told---how we  39 our loved ones. While I was cooking ,my daughter came up to me quietly. When I   40 , I nearly knocked her down. "Get out of the way! "I barked She ran away, with her little heart broken. I didn't realize how  41 I'd spoken.
That night, as I lay  42 in bed, God's quiet voice spoke to me and said,  "While  43 with a stranger, you're calm and polite, but with those you love, you're quick to  44 . Go and look right now on the kitchen floor. You'll   45 some flowers there by the door. Those are the flowers she brought for you. She   46 them herself. She stood there _ 47 , not to spoil your surprise, and you never saw the tears in her eyes."   48 this time, I felt sad and my own tears had begun to   49 . "Are these the flowers you picked for me?" I asked. She   50, "I found them out by the tree. 1 knew you'd like them." I said, "I'm so sorry that I   51  them today. And I shouldn't have shouted at you that way." She whispered, “Mommy, that's okay... I still love you   52 .” I hugged her.
Are you aware that if you die tomorrow, the company that you are working for could easily  53  you in a matter of days? But the family you leave behind will feel the   54 for the rest of their lives. And come to think of it, we  55 more into our work than into our families –an unbalanced investment (投資) indeed.
小題1:A. angry
小題2:A. noticing
小題3:A. And
小題4:A. respect
小題5:A. cooked
小題6:A. aloud
小題7:A. asleep
小題8:A. dealing
小題9:A. quarrel
小題10:A. find
小題11:A. made
小題12:A. quickly
小題13:A. In
小題14:A. come
小題15:A. added
小題16:A. missed
小題17:A. forever
小題18:A. fire
小題19:A. loss
小題20:A. pass
B. sorry
B. knowing
B. So
B. regard
B. turned
B. clearly
B. still
B. meeting
B. excite
B. take
B. bought
B. eagerly
B. By
B. form
B. cried
B. lost
B. anyway
B. pay
B. trouble
B. lead 
C. sad
C. following
C. As
C. treat
C. began
C. difficultly
C. awake
C. talking
C. shout
C. enjoy
C. prepared
C. quietly
C. For
C. fall
C. smiled
C. destroyed
C. however
C. remember
C. problem
C. run
D. unlucky
D. understanding
D. But
D. show
D. worked
D. cruelly
D. upset
D. traveling
D. mistake
D. need
D. picked
D. nervously
D. After
D. flow
D. agreed
D. forgot
D. therefore
D. replace
D. care
D. pour
                   

查看答案和解析>>

科目：高中英語 來源：不詳 題型：完形填空

My grandparents were married for over half a century, and played their own special game from the time they had met each other. The goal of their game was to write the word "shmily" in a     31    place for the other to find. They took turns leaving "shmily" around the house, and as soon as one of them     32    it, it was their turn to hide it once more.
There was no     33    to the places where "shmily" would appear. Sometimes, "Shmily" was written in the     34    left on the mirror after a hot shower, where it would reappear bath after bath.     35   , my grandmother even unrolled an entire roll of toilet paper to     36    "shmily" on the very last sheet.
It took me a long time before I was able to fully     37    my grandparents' game. It was     38    their funny little game; it was a way of life. Grandma and Grandpa held hands every chance they could. They    39    kisses as they ran into each other in their tiny kitchen. Before every meal they bowed their heads and gave their     40   : a wonderful family, good fortune, and     41  .
But there was a    42   cloud in my grandparents' life: my grandmother had breast cancer, which had first appeared ten years earlier. As always, Grandpa was with her every
    43    of the way. He comforted her in their yellow room, painted that way     44____    she could always be surrounded by sunshine, even when she was too     45    to go outside.   Then one day, what we all     46    finally happened. Grandma was gone.
"Shmily." It was written in yellow on the pink ribbons of my grandmother's funeral bouquet. As the crowd     47    and the last mourners (哀悼者) turned to leave, my aunts, uncles, cousins and other family members     48    and gathered around Grandma     49   . Grandpa stepped up to my grand-mother's casket and,     50    with sorrow, he began to sing to her. Through his tears and grief, the song came, a deep and throaty lullaby (搖籃曲).
SHMILY: See how much I love you.
小題1:
A．exact
B．surprising
C．usual
D．regular
小題2:
A．discovered
B．defeated
C．folded
D．a(chǎn)nnounced
小題3:
A．start
B．point
C．doubt
D．end
小題4:
A．steam
B．water
C．a(chǎn)ir
D．dust
小題5:
A．In an instant
B．As a result
C．At one point
D．Once for all
小題6:
A．link
B．leave
C．find
D．a(chǎn)ttract
小題7:
A．enjoy
B．a(chǎn)ttend
C．handle
D．a(chǎn)ppreciate
小題8:
A．similar to
B．due to
C．rather than
D．more than
小題9:
A．rejected
B．lacked
C．stole
D．a(chǎn)ssessed
小題10:
A．blessings
B．orders
C．guides
D．treats
小題11:
A．a(chǎn) peaceful world
B．each other
C．delicious food
D．happy time
小題12:
A．colorful
B．dark
C．strange
D．splendid
小題13:
A．step
B．minute
C．time
D．moment
小題14:
A．in case
B．even if
C．a(chǎn)s well as
D．so that
小題15:
A．comfortable
B．sick
C．cautious
D．thrilled
小題16:
A．hoped
B．dreamed
C．feared
D．loved
小題17:
A．thinned
B．increased
C．swelled
D．a(chǎn)pproached
小題18:
A．came forward
B．set off
C．broke away
D．sat down
小題19:
A．over and over again
B．for one thing
C．one last time
D．here and there
小題20:
A．shaking
B．smiling
C．leaving
D．praying

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Loma just had to get in touch with someone：“I had to tell my best friend something important. I tried calling her but I couldn’t get through. So I sent her an e-mail and then I spoke to her on MSN. Without technology I would not have been able to tell her. ”
Staying connected with friends and family is important for us. That’s why we asked our readers to tell us how cell-phones, e-mail, blogs, text messaging, and personal pages help them keep in touch. More than 1,500 responded.
Most of them told us they couldn’t live without technology：80％of teens said they need technology to stay in touch. Almost 30％said they’d be completely out of their friends without their cell-phones and other methods of communication.
What do they do when they’ve got news they need to share now? Most teens say they try to reach their friends by phone. But if they don’t reach them, they use QQ, e-mails, and text messaging to get the words out.
Lots of people use one way of communication—like text messaging—to get a friend’s attention and then use another where they can talk more. “My friends and I always tell each other everything that happens. So I send them text messages to tell them to come online so we can talk about it,” said Sabeiha.
“When planning to get together with friends”, Julian said, “the easiest and fastest way I know is to send a text message to my contact group.”Jocelyn said. “If I want to go to see a movie with a few friends, I usually send text message to them. By telephone, you have to call every single friend one by one. But text messaging allows you to send the same message to as many as you’d like, which saves a lot of time. ”
小題1: Which of the following is NOT mentioned in the passage?
A．E-mails.B．Blogs.C．Personal pages.D．Personal letters.
小題2:What do most young people use first when they have news to tell their friends?
A．MSN.B．QQ.C．Phones.D．Text message.
小題3: The underlined part “get the words out” means“     ”.
A．send the messageB．send the e-mail
C．talk with their friendsD．meet their friends
小題4: In which part of a newspaper can you find this passage?
A．Sport.B．Education.C．Technology.D．Culture.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

STRANGERS parties go wild these days. The main idea of them is to never let the people know who their matches are until the last minute. These are some popular practices that are storming the world’s youth on this V-day.
Speed dating
It’s exactly what the name implies. Complete with a timer, a whistle and 50 willing singles, speed dating is not the traditional dinner and a movie type of first date. Singles pay US $35 for three minutes with more than two dozen future dates. They ask questions and try to get to know each other. At the sound of a whistle, they do the same thing all over again―25 times in all.
Lock and key party
Women are given a lock and men are given a key, upon arriving at the party. Each key and lock has several matches. One can hunt for his/her later-to-be sweetheart in various groups, and try out the key or lock. Each time a lock and key match the pair are entered into a ballot (票數(shù)） for top prizes!
Dinner in the dark
Waiters wearing night vision glasses guide the guests through the pitch-black dining room. They are seated at the table and familiarized with the wine glass and plate. Food is handled with the fingers. People will not see the food they are eating or the guests at their table until the dessert course. At that moment, dining partners will appear.
Message party
Have A Cocktail, Leave A Message! When you arrive, you get a tag with a number and a pad of post-it notes. If you see someone you like, write a message on the message board. But wait… You’ve got a message… Go and collect it! You can make new friends and win lots of gifts. The more messages you leave on the bulletin board, the more chances you have of winning prizes.
小題1:What do you think the similarities of these parties are?
A．All the parties have very strict rules for their members.
B．If you want to go to any of the parties, you have to buy a ticket.
C．All the parties are aimed at strangers who want to be lovers.
D．All the parties are suitable not only for the young but for the old.
小題2:In which party does a participant have to be careful with the time?
A．Speed dating.B．Lock and key party.
C．Dinner in the dark.D．Message party.
小題3:If you go to the Dinner in the dark, ____________.
A．you have to wear night vision glasses
B．you have to eat with your hands
C．guests eat all the courses in the darkness
D．your dining partners will help you choose the food
小題4: How many of the parties offer gifts or prizes?
A．1.B．2.C．3.D．4.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

                                             79 Mayfair Road
Plumton, Kent
October 10th
Dear Rosemary,
I was very glad to get your letter this morning. I really ought to have written to you---it was my turn, I know----but I have been terribly busy. The children seem to take up all my time. I am thinking of sending Ann to a nursery school. She’ll be four next month. Baby has just started to walk and doesn’t give me a moment’s peace. But you know what it is like! How are all your children? I’m sure they love living in the country.
I’m afraid we can’t come over to see you next Sunday, as you suggest. Tom’s mother is coming to spend the day with us. What about the Sunday after that----- the twenty-second? We are free that day and should love to come. We’re longing to see your house.
Let me know, then, if the Sunday after next suits you. May we come for lunch? We’d like to leave fairly early in the evening to avoid the heavy traffic on the roads.
Love from us all,
Edna
小題1: Edna can not see Rosemary the following Sunday because_____.
A．she is afraid of the traffic　　　　　B．Tom’s mother is coming to see them that day
C．she prefers to come on 22nd　　　　　　　　D．she is terribly busy with the children
小題2:What doesn’t give Edna a moment’s peace?
A．That she has been thinking of sending Ann to a nursery school
B．That Tom’s mother will come soon
C．That she has been thinking of going to see Rosemary’s new house
D．That her baby has just started to walk
小題3:We can infer from the letter that Tom is_________.
A．Edna’s husbandB．Edna’s sonC．Edna’s neighborD．Edna’s father

查看答案和解析>>

同步練習冊答案