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             ．

“Cool”is a word with many meanings．Its old meaning is used to express a temperature that is a little bit cold．As the world has changed，the word has had many different meanings．
“Cool”can be used to express feelings of interest in almost anything.When you see a famous car in the street，maybe you will say，“It's cool．”You may think，“He's so cool，”when you see your favourite footballer．
We all maximize（扩大） the meaning of“cool”．You can use it instead of many words such as “new” or “surprising”．Here's an interesting story we can use to show the way the word is used．A teacher asked her students to write about the waterfall（瀑布）they had visited．On one student's paper was Just the one sentence，“It's so cool．”Maybe he thought it was the best way to show what he saw and felt．
But the story also shows a scarcity（缺乏）of words．Without “cool”，some people have no words to show the same meaning．So it is quite important to keep some credibility（可信性）．Can you think of many other words that make your life as colourful as the word “cool”？ I can．And I think they are also very cool．
66．We know that the word "cool" has had ________.
A．only one meaning               B．no meanings
C．many different meanings         D．the same meaning
67．In the passage，the word“express”means“________”.  
A．see                 B．show         C．know                   D．feel
68．If you are _______ something，you may say，“It’s cool.”
A．interested in                   B．angry about
C．afraid of                      D．unhappy with
69．The writer takes an example to show he is ________ the way the word is used．
A．pleased with                  B．strange to
C．worried about                  D．careful with
70．In the passage，the writer suggests（暗示）that the word “cool”________．
A．can be used instead of many words
B．usually means something interesting
C．can make your life colourful
D．may not be as cool as it seems

I was very disappointed not to be able to go to the jazz concert last Friday. The announcement in the paper said that you could buy tickets at the theatre box office in Richland Hills any day between 10:30 a.m. and 4:00 p.m. Since I work from 9:00 a.m. to 5:30 p.m., the only time I could go to the theatre was during my 45-minute lunch break. Unluckily, the theatre is on the other side of the town, and the bus service between my office and Richland Hills is not very good. But if you are lucky, you can make the round trip in 45 minutes. Last Monday, I stood at the bus stop for 15 minutes waiting for a bus. By the time I saw one come around the corner, there was not enough time left to make the trip. So I gave up and went back to the office.

The same thing happened on Tuesday, and again on Wednesday. On Thursday, my luck changed. I got on a bus right away and arrived at the theatre in exactly 20 minutes. When I got there, however, I found a long line of people at the box office. I heard one man say he had been waiting in line for over an hour. Realizing I would not have enough time to wait in line, I caught the next bus and went back across the town. By Friday, I realized that my only hope was to make the trip by taxi. It was expensive, but I felt it would be worth to hear the concert. The trip by taxi only took 10 minutes, but it felt like an hour to me. When I got to the theatre, I was relieved to see that nobody was waiting in line. The reason, I quickly discovered, was that they had already sold out all the tickets.

1.The writer could go and buy the ticket __________.

A．any day before work hours

B．both before and after work hours

C．only during lunch time

D．on Saturday and Sunday

2.The writer tried to go to the theatre every day, but was only successful______.

A．twice                                 B．three times

C．four times                             D．five times

3.He failed to get the ticket on Friday because _________.

A．it was impossible to make the round trip to the theatre in 45 minutes

B．the concert wasn’t on Friday

C．it was expensive to take a taxi

D．all the tickets had been sold out

4.The word "______" can be used instead of the underlined(划线的)word "relieved".

A．nervous           B．terrified           C．pleased           D．sad

　In a great many cities, hundreds of people ride bicycles to work everyday. In New City, some bike riders have even formed a group called Bike for a Better City. They declare that if more people rode bicycles to work, there would be fewer automobiles(汽车) in the downtown part of the city and so less dirty air from car engines. For several years this group has been trying to get the city government to help bicycle riders. For example. They want the city to draw special lanes(通道) for bicycles only on some of the main streets, because when bicycle riders must use the same lanes as cars, there are accidents. Bike for a Better city feels that if there were special lanes more people would use bikes.
But no bicycles lanes have been drawn. Not everyone thinks they are a good idea-----they say it will slow traffic. Some store owners on the main streets don't like the idea------they say that if there is less traffic, they will have less business.
The city government has not yet decided what to do. It wants to keep everyone happy. On weekends, Central Park----the largest place of open ground in New York----is closed to cars, and the roads may be used by bicycles only. But Bike for a Better City says that this is not enough and keeps fighting to get bicycle lanes downtown.
73. The bike riders suggest that _____________.
A. bicycles should be used instead of cars    B. bicycle lanes should be drawn
C. fewer buses or cars should be used  D. the number of special lanes should be increased
74. The advantage(好处) of the special lanes is that _______.
A. they will make cars and buses run slowly   B. they will make it easier for bike riders to go to parks
C .they will make the city more beautiful    D. the lanes will prevent accidents
75. The government has not decided whether special lanes should be drawn ______.
A. so that everyone is disappointed      B. because there are different opinions
C. because most people travel by train   D. because Bike for a Better City is not strong enough

As you are students of English, it’s very possible that you’ll be interested in England. That’s where the language was first spoken. But England is often called by other names. This often confuses people and I wonder if you know what these names mean. So, now I would like to tell you about this matter of names. I believe that you have heard people use the names—England, Britain or Great Britain. Let’s see what each of these names means.
If you look at a map of Europe, you’ll see a group of islands--one larger island off the northwest coast, one smaller and many tiny ones. These make up what is called the British Isles. The largest island of the British Isles is Britain. It is also called Great Britain. The smaller island is Ireland.
Britain is divided into three parts: Scotland, Wales and England. But sometimes the word “England” is used instead of “Britain”. Why so?
In ancient times, what is Britain now used to be three different countries. People in these different countries spoke different languages. Over many years the three countries became one. England is the largest and richest of the three and it has the most people. So the English people take it for granted that their own name stands for the whole island.
There’s another thing that confuses people: sometimes you may hear people say “the United Kingdom of Great Britain and Northern Ireland”. That is the official name of the country. Northern Ireland is only one sixth of the island of Ireland. The rest of the island is an independent state, called the Republic of Ireland. So we have the names of “England”, “Britain”, “Great Britain”, and “the United Kingdom of Great Britain and Northern Ireland”. Now do you know what each of them means?
【小题1】English was first spoken in ____.