（51）处应填（）。

A．learning languages
B．designing s
C．meeting students
D． plans

正确

错误

前列腺癌

前列腺增生伴慢性尿潴留

尿道狭窄

急性尿潴留

前列腺癌伴急性尿潴留

It is always a little sad to say goodbye to a long-time friend you are leaving forever, a (1) you have spent many hours with, in all sorts of (2) . David didn’t think I should be so (3) about the separation. "It’s (4) a car," he said. "And we need a (5) one. "

We were standing in the hot car park outside a car dealer’s office, keys to the new (6) in David’s hand, keys to the old one in mine. David took the keys and handed them to the (7) As we drove away, I (8) to look at my trusty friend, standing silent and alone.

As it turned out, I (9) the new car. It ran beautifully, all the tires were good, (10) I happily stopped buying gas every week. Our teenage children were (11) to ride around in a small green car (12) a smoky van (小型客货车). It began to feel like our family’s car.

Still, I (13) looking in the rear-view mirror (后视镜) and seeing the seats (14) I used to put my little children. I still thought about the family (15) in that car and the fun we had together.

Then one day, I happened to go to a (16) . I parked in a sea of vehicles (车辆). As I (17) through the car park on my way into the store, I saw a (18) blue van coming slowly toward me. A little boy and a girl looked out the window at me as I stared at them in great (19) . The boy smiled at me cheerfully and waved. Then, as I waved back slowly with (20) feelings, and then walked quickly away toward the store’s entrance, I burst into tears.

Kenya Wildlife Safari from ￡ 995

DAY 1 LONDON/NAIROBI

Daylight flight to Nairobi. On arrival, check in at the Holiday Inn Mayfair Court.

DAY 24 SAMBURU AND TREETOPS

Set off on safari, driving north, to the west of Mount Kenya and across the equator (赤道). 2 nights at Samburn Lodge, including afternoon and morning game drives. Continue south to the Aberdare Mountains and the world famous Treetops, where we arrive in time for tea on the rooftop platform, where you can watch the animals come down to the waterhole.

DAY 5 LAKE NAIVASHA

Continue from Thomason’s Falls to Lake Nakuru. As well as the interesting bird life, it is here that you will have the best chance of seeing the black rhino (犀牛). Overnight at the Lake Hotel, Naivasha.

DAY 6-8 MASAI MARA

After a restful morning in this lovely lakeside setting, we drive to the Masai Mara game area for a 3 night-stay at Keekerok Lodge. The vast plains of the Mara reach the Tanzanian border where they joifi the famous Serengeti, covering an area of over 6,000 square miles. The Mara is home to countless thousands of animals. Head out for morning and afternoon game drives.

DAY 9 MASA MARA/NAIROBL/LONDON

Return to Nairobi for your overnight flight back to London.

The California Science Center is open daily from 10 a.m.-5 p.m. except for Thanksgiving, Christmas and New Year’s Day. The IMAX Theater is open daily. Please read our movie times page or call 213-744-7400 for show information.

Admission to the Science Center’s permanent (长期的) exhibition is free. Admission prices for the IMAX Theater are based on age group, and lower-priced tickets are given to groups of 15 or more people. Ticket prices also apply to three Science center attractions: the High Wire Bicycle, the Motion Based Simulator and the Ecology Cliff Climb.

If you’re coming in a group of 15 or more people, please check our group reservations page. Food and bank services are offered for your convenience. For more information about Science Center hours or programs, please contact us.

South of downtown Los Angeles, the California Science Center is built in Historic Exposition Park, just two blocks west of the Harbor (110) Freeway at the Exposition Boulevard Exit. There are buses going to the Science Center. For more information, see Map & Directions.

Don’t miss our Special Exhibits. They change throughout the year, always offering new and interesting ways to learn about science.

When you arrive, be sure to check at the Information Center for the day’s special activities. If you are with children under 7, stop by the Discovery Rooms in Creative World or World of Life for some hands-on learning.

Mobile Phone Manners

Mobile phones have changed the way we communicate (交流); they have also brought about problems in phone manners (礼仪). Gaik Lira, a Singapore-based advisor, has some advice on phone manners.

When dealing with missed calls, the person being called should return the call. "Calls should be returned as soon as possible, and no later than the following day. Anything later than that, and an apology or a reason for the delay should go with the call. "

Text messages should be kept short and to the point. If they go beyond four or five lines, call or e-mail instead. "The use of short forms should be among family members and friends, never in a business situation. "

Speak in a low voice as if you were talking to someone next to you. If the connection is bad, don’t raise your voice in order to be heard, simply move to another place where the connection may be better. And if that doesn’t work, tell the caller to call you back or offer to call at a later time.

When a conversation is cut off due to a bad connection, the person who started the conversation should call back. "It may be inconvenient for the other person to return the call, especially if it’s an unlisted number, or an overseas call. "

When running late for a date or meeting, it is acceptable to text to inform that you’ll be delayed. Messages should be apologetic. "A message like ’ Sorry. Will be about 30 minutes late due to flight delay’ is considered polite and thoughtful. "

Taking calls during meetings is only acceptable if you have informed the chairperson that you are expecting an urgent (紧急的) call. If you get an unexpected but urgent call, apologize to those present and offer a quick explanation as to why you have to take that call. Then leave the room to continue your phone conversation.

Different countries have different cultures. A same gesture may have distinct meanings in different countries. For instance, in Africa, people knock at the table with their fingers to call waiters which is considered as impolite in China. In western countries, if you make a circle with your thumb and the index finger (食指), and then raise the other three fingers, you are suggesting "OK". The same gesture, however, means "money" in Japan while makes Brazilian people feel insulted (受侮辱的). With that in mind, you’d better learn about their custom before travelling to foreign countries.

Greeting is an important part of communication between people. When greeting someone, Americans tend to hold out their hands and look directly into his/her eyes and then smile. However, sometimes such behavior might bring nothing but misunderstanding in other countries. A handshake might not be accepted and looking others right in the eye can have different meanings.

Asian people regard physical contact as embarrassing; therefore, they do not shake hands. They have their own ways of greeting people. For Japanese, a slight bow of the head is enough. In Korea, women do not shake hands or hug with people; while men might shake hands accompanied by nodding the head once. In western Asia, Muslims do not make body contacts with women yet hug is generally accepted among men. Same thing happens on eye contact. In many countries, people avoid direct eye contact to show respect. This can cause misunderstanding, too. In fact, some Asian students have been regarded as lacking respect for their American teachers exactly because they failed to make eye contacts with their teachers.

Though different cultures seem to have different ways of greeting, smiling is taken as the universal gesture of friendliness. Smiling indicates happiness or agreement (同意) and it can also be used to mean "Excuse me" or "Please". So when you are not sure what to do, just smile.

Kenya Wildlife Safari from ￡ 995

DAY 1 LONDON/NAIROBI

Daylight flight to Nairobi. On arrival, check in at the Holiday Inn Mayfair Court.

DAY 24 SAMBURU AND TREETOPS

Set off on safari, driving north, to the west of Mount Kenya and across the equator (赤道). 2 nights at Samburn Lodge, including afternoon and morning game drives. Continue south to the Aberdare Mountains and the world famous Treetops, where we arrive in time for tea on the rooftop platform, where you can watch the animals come down to the waterhole.

DAY 5 LAKE NAIVASHA

Continue from Thomason’s Falls to Lake Nakuru. As well as the interesting bird life, it is here that you will have the best chance of seeing the black rhino (犀牛). Overnight at the Lake Hotel, Naivasha.

DAY 6-8 MASAI MARA

After a restful morning in this lovely lakeside setting, we drive to the Masai Mara game area for a 3 night-stay at Keekerok Lodge. The vast plains of the Mara reach the Tanzanian border where they joifi the famous Serengeti, covering an area of over 6,000 square miles. The Mara is home to countless thousands of animals. Head out for morning and afternoon game drives.

DAY 9 MASA MARA/NAIROBL/LONDON

Return to Nairobi for your overnight flight back to London.

British scientists have been given ￡ 1 million by the European Commission to find out if a robot (机器人) can safely be employed to stir (搅拌) soup.

The research, based at the Bristol Robotics Lab (BRL), will look at the problems of a human and a robot working together in the same space; for example, in a kitchen where the service robot is performing a task such as stirring soup while you add cream.

Professor Chris Melhuish explained, "When we work with other humans, we are trying to understand facial expression, body movements, quality of voice, as well as sharing a goal and understanding and following spoken instructions. "

"For example, in the soup situation, not only does the robot need to know what the goal is ( making the soup) but he also needs to know how hard to stir the soup, what it means when you hold up your hand to say enough, to understand the look of pain on your face if you accidentally get wet with hot soup, and to stop stirring when told. The research aims to develop the rules we need to introduce this level of cleverness into service robots who are working closely with people. "

Professor Melhuish, of the BRL, said robots working in factories at present are kept behind gates for safety reasons--a measure that is not practical in the kitchen.

The research is a joint effort between robotic engineers and scientists from West of England and Bristol universities.

It’s 8.00 am. James Butters gives ]8-month-old Thomas his milk, then breakfast. After getting Thomas into his outdoor clothes, they head for the park to watch birds and play on the grass. With hitch time drawing near, they’re back home for an afternoon of drawing, playing with cars, maybe watching some children’s programs.

James isn’t Thomas’ dad. He is a nanny (保姆)--a man nanny, obviously, interestingly termed a "manny"--specially trained and in his third nannying position. At 27, he cares for Thomas, and another boy of a similar age. "It’s much freer than an office job," he says, "and you’re getting to see children develop and grow. You become very close to them, for sure. I don’t think I’m special or better than a woman nanny; everyone has their own method. But I’m unusual. Friends laughed when I started studying nursery nursing. In my class, I was the only man among 70 women. Somehow, I made it," he said.

Although it’s not yet common to find men in traditional (传统的) nannying courses, things are changing. In the United States, parents are employing young mannies, sometimes to care for babies, but more often as active role models to get junior away from the TV and the computer. From rollerblading (轮滑) friends to summer swimming mannies, these are the big brothers who are always willing to play, largely because they’re paid for it.

It is catching on here in Britain, too. Earlier this year, Nofland nanny college welcomed its first full-time man student, 19-year-old Peter Cummins in Wales. While some families find it difficult to accept the idea of a young man in a traditional nannying role, man nannies are increasingly popular.