What makes 15,000 men and women run for hours, and what makes them run through the streets on a cold day without coats? I was one of those runners.  The race is called marathon (马拉松).
I had never run more than eight miles before, and here I was training.  Since the race is in April, I had to run throughout the winter, and in Boston, winters are cold. For most people, just putting on their shirts, sweaters, jackets, and hats is exercise enough. I found myself out on the dark streets, running along ice sidewalks (人行道). Even in gloves, my fingers got so cold that they looked like red carrots. My nose didn’t get warm until lunchtime !
Finally, the big day arrived. The weather was cold, with ice and rain. Bang! The gun sounded, and we started. I didn’t go anywhere at first because I was standing behind so many people. I had to wait for them to move.
At first, the running was easy.  The other runners just seemed to pull me along. Somewhere around the 20-mile mark I even said to myself, "This is nothing, why did I train so hard?"
Then I hit "the wall". "The wall" is what marathon runners call the special point. I knew my body reached the point and I thought I couldn’t go any more. I was out of breath and my legs turned into pieces of wood.  I was almost falling down.  I can’t remember anything about the last five miles of the race.
I kept running though. At last, I heard a voice at the finishing line.
"You look good," my friend Ted said. "How did it feel?"
"Wonderful !" I replied.
For everything, if you devote yourself into it, there will be a way. I finished the race, at least, in my heart, I was the winner

1. 1.

   Which one best describes the weather on the race day?

   1. A.
      Cold and rainy
   2. B.
      Cold and sunny
   3. C.
      Dry and cloudy
   4. D.
      Wet and foggy
2. 2.

   How did the writer feel about the race during the first 20 miles?

   1. A.
      Difficult
   2. B.
      Boring
   3. C.
      Easy
   4. D.
      Interesting
3. 3.

   According to the article, what must someone do to prepare for a marathon?

   1. A.
      One must eat certain food and get plenty of sleep
   2. B.
      One must be willing to eat, sleep, and train twenty-four hours a day
   3. C.
      One must run along ice sidewalks every day
   4. D.
      One must be willing to train a lot and doesn’t give up easily
4. 4.

   Then I hit "the wall". What do you think "hit the wall" means here?

   1. A.
      撞击墙壁
   2. B.
      到达极限
   3. C.
      抵达终点
   4. D.
      中途加速

 完形填空: 从每小题A、B、C三个选项中，选出能填入空白处的最佳答案。

Some people say they have a solution（解决） to the problems of car crowding and pollution. In many cities, hundreds of people   1  bikes to work every day. In the New York City, some bike riders have even set up a group: Bike for a Better City. They say if more people ride bikes to work, there would be   2  cars and less dirty air.

For several years this group has tried to gather(聚集) help for bike riders. They want to have special roads   3  bikes only, because when bikes and cars use the same road, there may be accidents. Bike for a Better City thinks if there were bike roads, more people would use bikes.

But no bike roads have been established（建立）   4 . Not everyone thinks it is a good   5 . Drivers don’t like it, and some shop owners（主人） don’t like it,   6 . And most people live   7   far from the city to travel by bike. Still, people have done  8  about it. On Saturdays and Sundays, the largest open park in New York is   9  to cars, and the roads may be used by bikes only, but the group still says this is not enough and goes on fighting   10  bike roads. I think there will be more bike roads in the future.

1.A. on              B. ride             C. by 

2.A. fewer           B. less             C. more

3.A. until           B. for              C. of

4.A. yet             B. once             C. just

5.A. hope            B. way              C. help

6.A. too             B. also            C. either

7.A. very           B. quite            C. too

8.A. nothing        B. something        C. anything

9.A. closed          B. open            C. opening

10.A. get            B. to get           C. ask

Look closely at your hands. Are they clean? It doesn't matter how many times you wash your hands, tiny microbes (微生物) still stay on them. But don't worry. Most microbes don't harm you.

Now scientists say the microbes on our hands could be used in a surprising way; fighting crime, According to a recent survey microbes as well as fingerprints(指纹) could be used to indentify the criminal.

Everyone has his own set of microbes on the hands. That is to say, if you and your best friend were able to see and compare all the microbes on your hands, your hands probably would look different. Some microbes only show up on your hands while others live only on your friend's hands.

When you work on a computer you leave the microbes from your hands on the keyboard. The scientists can easily tell the owner of the keyboard by looking at the microbes on it. Even if you don't leave your fingerprints behind, your microbes may give you away.

Noah Fierer, a scientist, says. "You can only clean a fingerprint, but you can't sterilize (使无菌) a surface just by wiping(擦) it off," He says that scientists have a lot more work to do before the microbe is used as a useful tool.

1.According to the passage,_______ could be used to identify the criminal.

A. fingerprints    B. scientists' hands

C. microbes        D. fingerprints and microbes on people's hands

2.Paragraph 3 tells us that________.

A. our hands look similar             B. the microbes will make the keyboard dirty.

C. we should compare hands often     D. we have our own sets of microbes.

3.When you work on computer, the microbes________.

A. just stay on our hands B. also stay on the keyboard

C. will do harm to you D. will disappear

4.From Noah Fierer we know that________.

A. fingerprints are no longer useful in fighting crime

B. microbes can be found on everyone's hands.

C. unlike microbe fingerprints can be cleaned if people wipe them

D. the microbe is used as a useful tool

5.What’s the best title of the passage?

A. Microbes May Tell Who You Are               B. Scientists Say Everyone Has Microbes

C. Noah Fiercer Does Research Into Microbes    D. Fingerprints Help Catch Criminals