As space science develops, man has learned more and more about space. Space is not only amazing but also dangerous. While working in space, spacemen are facing danger as well as success.

Scientists have found out that the radiation（辐射） is the greatest danger to spacemen in space. When spacemen are working in space, they are in danger of the radiation from the sun and other stars, which is bad for their health. The harm of the radiation won’t be found until their children even grandchildren are born. Some special medicine may work a little, but no really effective medicine has been found so far.
Space rubbish is also thought to be a great danger to spacemen. It’s reported that there were 9,000 man-made things flying in space. About 30% of these are satellites, 10% are spaceships, and the rest are space rubbish. An explosion（爆炸）in space in 1999 made a cloud of 300,000 fragments, each at least 4mm in size. A small piece of these even knocked a spaceship window and caused some damage（损坏）.
Scientists are watching and reporting any possible danger all the time. They are working to deal with space rubbish. Although space is really dangerous, it interests many people on the earth. In the near future, it may become possible for people to spend a few days in a space hotel. We may even choose to leave the earth and live in space in a few years. So we should do something to help improve the space environment.
【小题1】 ______ shows the man-made things in space in the correct way.
   

Dear Sir,
I am writing to you about my stay at your hotel.
My wife and I  1 on Saturday, 15^th, May and stayed   2 a week. Though we were treated __3 and found the service(服务) excellent, we  4 there are one or two matters we   5 bring your attention.
First, we had hoped for a nice  6 from our busy work lives, and your ad   7  "Comfortable and qui­et". We want to have a chance to enjoy ourselves. How­ever,  we were  8 to find that repairs are sometimes needed,  but is it  9 necessary to start early in the morning?
Second, we had hoped to  10 in your "wonderful pool". To our disappointment (失望)， we found that it was   11 for the whole time of our stay.
I   12 you do not mind me writing to you   13 these things,  but I would be happy  14__  you could give me some explanation(解释). As I  15__ at the start, it is a pity,  and your service is so well in other fields.
I hope to hear from you.
Mr. Hector Bradley

As a single parent of four children, money was always tight .It was Christmas time, and although  there wasn’t money for a lot of gifts, we planned to celebrate with a family party . But the big excitement for the kids was the fun of Christmas (36).
They planned weeks ahead of time , asking (37) what they wanted for Christmas. luckily, I have saved $120 for (38) to share by all five of us .
The big (39) arrived. I gave each kid a twenty-dollar bill and (40) them to look for gifts of about four dollars each. Then everyone scattered(散开). We had two hours to shop. Then we would (41) back at the “Santa’s Workshop.”
Driving home, everyone was in high Christmas spirits (42) my younger daughter, Tina, who was unusual (43). She had only one small, flat bag with a few candies—fifty-cent candies! I was so angry, but I didn’t say anything (44) we got home. I called her into my bedroom and closed the door，(45) to be angry again. This is what he told me:
“ I was looking (46) thinking of what to buy , and I (47) to read the title cards on the ‘Giving Trees.’ One was for a little girl, four years old. And all she (48) for Christmas was a doll .So I took the card off the tree and (49) the doll for her. We have so much and she doesn’t have anything.”
I never felt so (50) as I did that day.

　It was very late when we came out of the cinema. We knew the last train would leave      11:15 , so we ran as      as we could to the station. It was just after 11: 15 when we      the station, but the trains often leave a little       and there was a train standing at Platform 1(第一站台) , so we got in. We        for half an hour, then we got       . We found the ticket collector and asked him      the train was going to leave.

　　“Tomorrow morning at six o clock,” he told us.

　　There were       taxis outside the station.       we walked home. It        us nearly two hours. The next morning we felt very tired.

1.A. in           B. for         C. at          D. on

2.A.fast          B. faster       C. fastest       D. fastly

3.A. reached to    B. got         C. arrived in    D. arrived at

4.A. later         B. early        C. earlier      D. late

5.A. wait          B. are waiting  C. waited      D. waits

6.A. out          B. in           C. off        D. on

7.A. how          B. when       C. why        D .that

8.A. no           B. not         C. none        D. nothing

9.A. but           B. or          C. so          D. and

10.A. spent        B. cost         C. paid        D. took

There are about 80,000,000 mines*  under the ground in more . than 60 countries. It is difficult and dangerous to clear these rnines, About 50  people including many children were’ killed ‘or htirt each iay.  In 2003,  APOPO,  a Dutch research com pan y that uains the an imals, came up with the-idea of s\ng rats to search for the mines.

The animal trainers ‘found that a kind of rats from Africa were clever and had.a sharp*  sense of smell.  The rats were about 75 cm long and.weighed about l.35 kg, light enough to run across a minefield without setting off the mines.

  In January 2004, the APOPO started this project. First, the trainers let the 4-week-old baby rats get familiar with humans. A few weeks later, the rats were no Ionger afraid of people and ‘the things around them. Then they were trained to connect a click* sound with food. After the rats had leamed that, the trainers then taught them to tell the difference between the smell of mines and other smells. When the rats could do it, the click was sounded and they were given a bit of banana.  The method was called clicker training. “The training isn’t easy, said trainer Abdullah Mchomvu.  “You have to be patient. Sometimes I get angry, but then again, I tell myself these are animals.”

  After nine months’  training, the rats were taken to a minefiel山  They’ran across the minefield, stopped, sat and scratched the ground to tell the deminers*  that they smelt out’a mine.  Then the mine was cleared. It had  taken two ‘deminers  a day to clear a 200㎡ . minefield,  but with the help of two rats ‘they could finish it in two hours.

  The rats and ~he deminers saved thousands of lives,  “The rats did this job much better than we expected. So far they have helped to make almost 2,000,000㎡ of land safe. They are heroes,” said Bart Weeqens, the head of the APOPO.

1. The APOPO trained the rats to search for     .

A. children    B. animals      C. mines     D. bananas

2. While training the rats, the trainers have to be

A. patient     B. clever        C. brave         D. serious

3. How long did the training last?

A. Two hours.    B. One day.    C. Four weeks.    D. Nine months.

4.Which of the following is NOT TRUE according to the passage?

A. Each day about 200 people were killed or hurt by mines,

B.The APOPO started to train the rats in January 2004.

C. The trainers gave the rats food after they smelt out a mine.

D.The rats and the deminers saved thousands of lives.