TOKYO, JAPAN--What do you do when you see a cockroach (蟑螂）？ Do you hit it with a newspaper? Do you step on it?

When researchers at Tokyo University see a cockroach, they take the remote control and make the cockroach turn around, run left or right, or go forward. These scientists are changing the cockroaches into robots. Each cockroach has a very small pack that has in it a microprocessor(微处理器）.Then researchers can send signals from the remote control to the pack. The signals control the movements of the cockroaches.

Why does anyone want to control a cockroach? “Insects can do many things that people can’t,” says Isao Shimoyama, head of robot research at Tokyo University. In a few years, he says, these robot insects will carry very small cameras. They will be able to move through earthquake rubble(瓦砾）to look for people or move under doors to find information about someone.

This may seem strange, but the Japanese government thinks the research is very important. The government is giving the scientists $ 5 million for this research.

First, the researchers breed (培育)hundreds of cockroaches. They use only the American cockroach because it is bigger and stronger than other cockroaches. Then they choose the best cockroaches and remove their wings and antennae(触须）. They put small packs where the antennae were. The packs weigh about three grams, or about two times the weight of the cockroaches themselves. “Cockroaches are very strong,” says Ralph Holzer, who is a researcher at Tokyo University. “They can lift 20 times their own weight. ”

With a remote control, the scientists send signals to the packs. When a cockroach gets the signal, it moves. The problem is that the cockroaches don’t always move in the right direction.

1.The scientists are changing the cockroaches into robots because ______.

2.What can cockroaches do to help people?

3.Scientists control cockroaches’ movements ______.

4.What problem do the rcscarchcrs meet with?

Choose the best answer to complete the passage.

You've just finished with middle school and you may start wondering, “What is high school like? Is high school a lot  32  middle school? Is it going to be hard to start out in a new place?"

Most high schools in America hold a freshman class  33  school actually starts. When you talk to people in the freshman class, you  34  that a lot of them are feeling just like you are, excited, maybe  35  afraid. Talking about a question of common interest with your classmates could start a new   36  .

The work in high school builds on what you  37  in middle school, and gives you more knowledge of many subjects. So you  38   feel that it's a bit more challenging. But these challenges can make you feel   39  . And there are many resources (资源）to use if you feel that the work is too much.

At the beginning of high school, you'll get to know it has more activities than middle school, such as clubs, music groups, and sports teams. These activities may      40   before or after school, or during your free time. 41  this, time management is an important skill in your 42  year.

Middle school teaches you the  43  of study and social skills while high school gives you the chance to learn 44  to be more independent (独立的).It's all right if you're nervous 45  . Just be patient and keep  46  . Once you've got used to your new independence, you can go farther than you ever imagined.

1.A. the same as       B. different from      C. helpful to

2.A. before           B. after              C. since

3. A. found           B. will find           C. have found

4. A. too             B. so                C. a little

5. A. hobby           B. friendship         C. topic

6.A. are learning      B. will learn          C. have learned

7.A. have to          B. should            C. may

8.A. more bored       B. less bored         C. less excited

9.A. take part         B. take up           C. take place

10.A. Because of       B. Thanks to         C. Instead of

11.A. first             B. second           C. third

12.A. aims           B. pleasure           C. ways

13.A. what           B. how              C. whether

14.A. at first          B. at last             C. at that moment

15.A. doing           B. studying           C. trying

Choose the best answer (根据短文内容，选择最恰当的答案)
You probably know you should say “please” and “thank you” at restaurants. You probably know the rules of a library. You know you should respect and be nice to your classmates. But do you have music manners?
Keep It Down! You have to notice the volume of your music. You should not play your music so loud that everyone around you can hear it. Some people might even get angry. Usually, when you play the music loud on an MP3 player, other people can’t hear the words of the song. They just hear a loud sound. No one wants to listen to this. Very loud music can also be bad for your ears. So even if you are alone when listening to our MP3 players, you shouldn’t turn it up too high.
Take Them Off! You need to know when to turn your MP3 off and put it away. Libraries, and schools don’t allow MP3 players. There are other places, like museums, that don’t have rules, but it would be rude to have your MP3 player on. Sometimes, it doesn’t make sense to listen on your MP3 player at event. Why would you listen to music at a play, a movie or a sporting event? You would miss what is going on and others would wonder why you even came.
Take One Out! Once in a while it’s okay just to take out one earphone and not other. Imagine you are listening on your MP3 player when someone asks you the way. It would not be rude to take out one earphone, tell him the way, and put back the earphone and continue listening. You can also do this when you order food at a fast-food restaurant or when you answer the telephone and it’s not for you.
It’s Your Choice! There are times when you need to decide what is best. For example, some people can listen to music on their MP3 players when reading books, while others think it is disturbing. In cases like this, you need to do what seems right for you.
【小题1】The underlined word “volume” in Paragraph Two probably means “_______”

Choose the best answer to complete the passage.
You’ve just finished with middle school and you may start wondering, “What is high school like? Is high school a lot  32  middle school? Is it going to be hard to start out in a new place?"
Most high schools in America hold a freshman class  33  school actually starts. When you talk to people in the freshman class, you  34  that a lot of them are feeling just like you are, excited, maybe  35  afraid. Talking about a question of common interest with your classmates could start a new   36  .
The work in high school builds on what you  37  in middle school, and gives you more knowledge of many subjects. So you  38  feel that it’s a bit more challenging. But these challenges can make you feel   39  . And there are many resources (资源）to use if you feel that the work is too much.
At the beginning of high school, you’ll get to know it has more activities than middle school, such as clubs, music groups, and sports teams. These activities may      40  before or after school, or during your free time. 41  this, time management is an important skill in your 42  year.
Middle school teaches you the 43  of study and social skills while high school gives you the chance to learn 44  to be more independent (独立的).It’s all right if you’re nervous 45  . Just be patient and keep  46  . Once you’ve got used to your new independence, you can go farther than you ever imagined.
【小题1】A. the same as       B. different from      C. helpful to
【小题2】A. before           B. after              C. since
【小题3】   A. found           B. will find           C. have found
【小题4】   A. too             B. so                C. a little
【小题5】   A. hobby           B. friendship         C. topic
【小题6】A. are learning      B. will learn          C. have learned
【小题7】A. have to          B. should            C. may
【小题8】A. more bored       B. less bored         C. less excited
【小题9】A. take part         B. take up           C. take place
【小题10】A. Because of       B. Thanks to         C. Instead of
【小题11】A. first             B. second           C. third
【小题12】A. aims           B. pleasure           C. ways
【小题13】A. what           B. how              C. whether
【小题14】A. at first          B. at last            C. at that moment
【小题15】A. doing           B. studying           C. trying