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PITTSBURGH — For most people, snakes seem unpleasant or even threatening. But Howie Choset sees in their delicate movements a way to save lives.

The 37-year-old Carnegie Mellon University professor has spent years developing snake-like robots he hopes will eventually slide through fallen buildings in search of victims trapped after natural disasters or other emergencies.

Dan Kara is president of Robotics Trends, a Northboro, mass-based company that publishes an online industry magazine and runs robotics trade shows. He said there are other snake-like robots being developed, mainly at universities, but didn't know of one that could climb pipes.

The Carnegie Mellon machines are designed to carry cameras and electronic sensors and can be controlled with a joystick (操纵杆). They move smoothly with the help of small electric motors, or servos, commonly used by hobbyists in model airplanes.

Built from lightweight materials, the robots are about the size of a human arm or smaller. They can sense which way is up, but are only as good as their human operators, Choset added.

Sam Stover, a search term manager with the Federal Emergency Management Agency based in Indiana, said snake-type robots would offer greater mobility than equipment currently available, such as cameras attached to extendable roles.

"It just allows us to do something we've not been able to do before," Stover said, "We needed them yesterday."

He said sniffer dogs are still the best search tool for rescue workers, but that they can only be used effectively when workers have access to damaged building.

Stover, among the rescue workers who handled the aftermath (后果) of Hurricane Katrina, said snake robots would have helped rescuers search flooded houses in that disaster.

Choset said the robots may not be ready for use for another five to ten years, depending on funding.

1.Which institution is responsible for the development of Choset's robots?

A. Robotics Trends. B. Pittsburgh City Council.

C. Carnegie Mellon University. D. Federal Emergency Management Agency.

2.Choset believes that his invention _________.

A. can be attached to an electronic arm

B. can be used by hobbyists in model airplanes

C. can find victims more quickly than a sniffer dog

D. can sense its way as well as its operators

3.By saying "We needed them yesterday" (paragraph 7), Stover means that snake-like robots ________.

A. could help handle the aftermath of Hurricane Katrina

B. should have been put to use in past rescue work

C. helped rescuers search flooded houses yesterday

D. were in greater need yesterday than today

4.What is the text mainly about?

A. Snake-like robots used in industries.

B. Snake-like robots made to aid in rescues.

C. The development of snake-like robots.

D. The working principles of snake-like robots.

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1.The above page can most probably be read _________.

A. on the Boston College website B. in the Boston College newspaper

C. on BC Eagle One Card D. at Student Services

2.The information above is particularly useful for those ________.

A. who want to apply for Boston College

B. who want to know about Boston College

C. who’ve been admitted to Boston College

D. who’ve decided to pay a visit to Boston College

3.If you want to study for your master’s degree with funding, you will have to _______.

A. return your Acknowledgment Form by May 31, 2008

B. send back your Acknowledgment Form by April 25, 2008

C. email your Acknowledgment Form to Admissions Office by May 31, 2008

D. return your Acknowledgment Form to Student Services by April 25, 2008

Two men, both seriously ill, were in the same hospital room. One man was allowed to_________up in his bed for an hour each afternoon. His bed was__________the room’s only window. The other man on the other side of the room had to_________all his time lying on his back in bed.

Every afternoon when the man by the window could sit up he_________pass the time by describing to his_________all the things he could see outside the window. “The window overlooked a_________with a lovely lake. Ducks and swans played on the water_________children sailed their model boats. Young lovers walked________among flowers of every color. Grand old trees graced the landscape, and a fine__________of the city skyline could be seen in the distance.” As the man by the window__________all this in detail, the man on the other side of the room would close his eyes and________the scene.

Days and weeks passed. One morning, the day nurse came only to find the man by the window had died_________in his sleep. When the man’s body was__________, the other man asked if he could be moved next to the_________. The nurse agreed and after making sure he was_________, she left. Slowly and painfully, the man raised himself__________to take his first look at the_________world outside by himself. But to his_________, he found it faced nothing__________a blank wall.

In fact the man by the window was_________and could not even see the wall. He just wanted to encourage his roommate.

1.A. wake B. climb C. sit D. stand

2.A. well above B. just over C. far from D. next to

3.A. spend B. lose C. waste D. save

4.A. could B. would C. might D. should

5.A. doctor B. nurse C. friend D. roommate

6.A. wall B. street C. fence D. park

7.A. when B. while C. since D. though

8.A. step by step B. arm in arm C. face to face D. one by one

9.A. view B. sign C. symbol D. mark

10.A. explained B. described C. watched D. heard

11.A. think B. expect C. imagine D. guess

12.A. peacefully B. bravely C. helplessly D. sadly

13.A. put away B. taken away C. picked up D. caught up

14.A. wall B. park C. lake D. window

15.A. dead B. amazing C. comfortable D. encouraged

16.A. planning B. trying C. refusing D. wishing

17.A. previous B. embarrassing C. beautiful D. favourite

18.A. horror B. delight C. surprise D. sadness

19.A. like B. as C. but D. and

20.A. dead B. deaf C. pitiful D. blind

A woman in her sixties lived alone in her little cottage with a pear tree at her door. She spent all her time taking care of the tree. But the children nearby drove her ______ by making fun of her. They would climb her tree and then run away with pears, ______ “Aunty Misery” at her.

One evening, a passer-by asked to ______ for the night. Seeing that he had an ______ face, she let him in and gave him a nice ______. The next morning the stranger, actually a sorcerer (巫师), thanked her by granting (允准) her ______ that anyone who climbed up her tree ______ not be able to come back down until she ______ it.

When the children came back to steal her ______, she had them stuck on the tree. They had to beg her long ______ she gave the tree permission to let ______ go. Aunty Misery was free from the ______ at last.

One day another man ______ her door. This one did not look trustworthy to her, ______ she asked who he was. “I am Death. I’ve come to take you ______ me,” said he.

Thinking fast Aunty Misery said, “Fine, but I’d like to ______ some pears from my pear tree to remember the ______ it brought to me in this life. But I am too ______ to climb high to get the best fruit. Will you be so ______ as to do it for me?” With a deep sigh, Mr. Death climbed up the tree ______ and was immediately stuck to it. No matter how much he warned or begged, Aunty Misery would not allow the tree to let Death go.

1.A. hopeless B. painful C. dull D. crazy

2.A. calling B. shouting C. announcing D. whispering

3.A. stay B. live C. hide D. lie

4.A. interesting B. honest C. anxious D. angry

5.A. gift B. kiss C. treat D. smile

6.A. suggestion B. advice C. permission D. wish

7.A. could B. should C. might D. must

8.A. permitted B. promised C. answered D. declared

9.A. branch B. food C. tree D. fruit

10.A. after B. while C. since D. before

11.A. it B. them C. him D. her

12.A. trick B. question C. trouble D. difficulty

13.A. stepped into B. left for C. stopped at D. walked around

14.A. so B. but C. although D. because

15.A. with B. off C. upon D. for

16.A. choose B. pick C. shake D. hit

17.A. honor B. pleasure C. hope D. excitement

18.A. thin B. short C. old D. light

19.A. light B. kind C. fine D. smart

20.A. disappointedly B. cheerfully C. unwillingly D. eagerly

Middle school graduation style may be a bit more casual than formal high school or college ceremonies,but the move from junior to senior high school is still an important occasion that can be celebrated in many ways.

The decision whether students will wear caps and gowns(礼服)for middle school graduation is usually up to the individual school.Some feel that this is the perfect way to commemorate the special occasion,while others feel the cap and gown is unnecessary for a junior high ceremony.

For those schools that choose not to use caps and gowns,it is typically suggested that students wear dress clothes for the occasion.Students may also be encouraged to dress for graduation in a uniform manner,such as white shirts and black pants or skirts,or educators may suggest dressing in the school colors.Schools that choose to have students wear academic regalia(制服)for the ceremony may choose to purchase gowns in a variety of sizes from a store such as Graduate Affairs,and then let students borrow them,and reuse them each year.Caps may be purchased by a Parent-Teacher Organization or by the individual graduates.

Parents may choose to host open house or party when their child graduates from middle school.This is typically an informal affair,such as a barbeque or pool party,or simply appetizers or cake to honor the graduate.Simple backyard games such as volleyball,bocce ball,and Frisbee are a fun way to entertain young teens,tweens,and well-wishers.Other party games and a band might also be considerations for a large or more complicated gathering.

Whether simple or complex,there are many ways to remember a graduation from middle school and make this time a special and wonderful one.Graduation events are perfect for highlighting a student’s achievements during middle school and preparing for his or her future success.

1.Which of the following can replace the underlined word“commemorate”in Paragraph 2?

A. pass B. ease

C. celebrate D. avoid

2.How do students often get the gowns for middle school graduation?

A. They get them from the school.

B. They purchase them from stores.

C. They make them by themselves.

D. They borrow them from the Graduate Affairs.

3.What can we learn from the last two paragraphs?

A. Sports games will be free for students.

B. Parents are less interested in the celebration.

C. Students will exchange gifts at the celebration.

D. There are various ways to honor the graduation.

4.What’s the author’s attitude to the celebration of middle school graduation?

A. Supportive. B. Doubtful.

C. Ambiguous. D. Sympathetic.

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