What do you do if you are hit in the mouth and one of your teeth is knocked out? A dentist(牙医)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(细胞培养液)．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．
【小题1】This passage is mainly about             ．

I was packed and ready to leave for my two days’ trip. My mind had been filled with work and with so many small things to deal with. As I got into the car to leave, my thoughts turned to my children. I’d been preparing for the trip for the last few days, and now I’d be away for a few days.
How to keep in touch with your kids during busy time is often a father’s problem. Men tend to focus on one thing extremely well for long periods, but this can lead to trouble. Shifting(移开) from work to your family life isn't always the easiest thing to do. And if you don’t show your kids that you’re thinking about them, they may think that you are not.
As I started down the road, I suddenly stopped the car and turned around. I drove back to my house, found a couple of cards, and wrote a short message to each of my children. I put each in a “secret” place where I knew they’d find it.
When I called the next night, it was clear that they’d received the cards. “Daddy, I got your card,” they both said excitedly. “When did you do that?”
My heart was warmed when I heard this. It was such a small thing. But it had a big impact(影响) on my kids. It was their “proof” that I was thinking about them. And it was encouragement for me to continue to do the small things that have a big impact.
【小题1】 From the passage we can infer that the author thinks a father should ______.

A．their father had thought highly of them

B．they had found the cards from their father

C．they had done something good at home

D．their father told them he would be back soon

When my son, Mark, was in the third grade, he saved all his pocket money for over three months to buy holiday presents for those he loved. He had  36  twenty dollars.
The third Saturday in December, Mark said he had  37  his list and had his money in his  38  . I drove him to a  39  supermarket. Mark picked up a hand basket and went off on his own  40  I waited patiently reading a book at the front of the store. It  41  Mark over 45 minutes to choose his presents. When he came up to the checkout, the smile on his face was truly  42  . The clerk rang up his purchase as I  43  looked at the other way. Mark kept  44  his budget and  45  into his pocket for his money.  46  was not there! There was a hole in his pocket, but no money. Mark stood  47  the store holding his basket, tears rolling down his cheeks. His whole body was  48  with his sobs. Then a(n)  49  thing happened. A  50  shopping in the store came up to Mark. She knelt down and took him  51  her arms. “You would do me the favor if you let me  52  your money,” said the woman. “It would be the most wonderful present you could ever give me. I only ask you could  53  . One day, when you grow up, I would like you to find someone you can help. I know you feel as good about it  54  I do now when you do help other people.” Mark took the money, tried to dry his  55  and ran to the checkout as fast as he could go.

【小题1】 A．collected B．gathered C．spared D．saved

【小题2】 A．wrote B．made C．had D．shown

【小题3】 A．wallet B．purse C．pocket D．backpack

【小题4】 A．nearby B．close C．near D．distance

【小题5】 A．while B．when C．though D．as

【小题6】 A．spent B．took C．cost D．needed

【小题7】 A．disappointing B．upset C．joyful D．surprising

【小题8】 A．impatiently B．unbelievably C．worriedly D．politely

【小题9】 A．in B．within C．out of D．over

【小题10】 A．put B．reached C．turned into D．stretched

【小题11】 A．It B．There C．They D．That

【小题12】 A．at the front of B．at the back of C．in the middleof D．outside

【小题13】 A．breathing B．worrying C．frightened D．shaking

【小题14】 A．interesting B．happy C．dramatic D．amazing

【小题15】 A．customer B．clerk C．stranger D．guard

【小题16】 A．by B．with C．in D．on

【小题17】 A．reply B．return C．give D．pay

【小题18】 A．pass it on B．pass it down C．continue it D．keep it

【小题19】 A．that B．as C．what D．which

【小题20】 A．sweat B．pocket C．presents D．tears

Dear Michelle,
My mother is not a good example for me and my sister. She smokes, stays out late, and she curses. I love her but I am ashamed of her. I do not want to bring home my friends because she does not act like any of the other mothers. She says I am a loser because I sit at home and I study. I wish I could live in another family that is normal, but that will not be for another 5 years when I am 18 and legal. What am I supposed to do until then?
Prisoner of a Crazy House
Dear 7th Grade,
I am glad that you love your mother because the rest of your feelings about her may change as you mature and get older.
While it is true that your mother’s smoking, partying and cursing bring you shame, the fact that you want to stay separate from her doing is notable and very smart. It shows that you are a winner, not a loser.
I am guessing, therefore, that you do not bring shame to yourself, and that is a good thing. So, keep it that way and keep away from your mother’s habits.
In the meantime, get the best grades as possible and join clubs and after-school activities. Offer social service on weekends and visit with your friends at their homes.
Unfortunately, you are not alone. Many teens live in homes with immature, misguided, selfish parents. Those kids often feel lonely and separate from the rest of their friends because of their parents’ terrible deeds.
Yet, despite this, some of these very teens grow up to be just fine. They develop good friendships with nice kids, do well in school, and often find a teacher of guidance advisor who makes all the difference!
Do it, Miss Winning 13-year-old, and keep looking forward to your own fine future. Maybe by then your mother may even see the light and realize how surprising you really are.
Best luck!
Michelle
【小题1】The kids asks for advice on how to _________.

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【小题1】What does the underlined part “make a killing” in Paragraph 7 mean?