阅读下面短文, 掌握其大意, 然后从1-25各题所给的四个选项中, 选出一个最佳答案。

(A)

　　    Millions of years ago, whales lived 1 and walked on 2 . Today whales 3 have small bones, 4 can only be seen on the inside of them. No one knows 5 whales left the land to live in the water. 6 , scientists can imagine when the whales changed their 7 conditions, their bodies underwent (经历) a change—showing a 8 fish-like appearance. This new 9 offered less resistance (抵抗) to the water. And the whales could 10 faster.

　　     Whales are not fish. 11 will die, just as a man will, if it stays under water too long. When a whale is under water it closes its 12 and holds its breath. The air in its lungs becomes very hot and its lungs are 13 water vapor. when a whale rises 14 and breathes, its hot breath produces a fountain (喷泉) of water that rises high in the air. A man produces 15 effect when he breathes warm air on a cold morning. 　　

(B)

    Men are the cleverest and most dangerous (危险的) animals on the earth. 16 come second. Men kill many beasts, they've even killed millions of men since very long ago, but rats kill 17 men. Rats carry many diseases (疾病) and these diseases have killed and are still killing thousands and thousands of men 18 in many countries. Rats are dangerous not in only one 19 . They not only carry diseases into men's homes, they also eat up men's food. They eat 33 million tons of 20 every year. Men starve because rats eat their food. Rats are 21 , too. They have good leaders to tell them the food is 22 when men put poison (毒药) in it. There are a lot of rats in our cities and 23 today. We can go to the moon, but we can not kill all these horrible animals. Is it 24 this dangerous enemy is too clever and 25 too fast, or we are not clever enough and not clean enough?

A mobile phone is in fact a small radio.A radio sends a person’s voice over a long way to another radio.A voice that is sent by radio is called a signal.A radio signal travels very quickly.

　 Only a few years ago，mobile phones were very large.They needed large batteries.They had to be powerful to send their signal to faraway places.This was because most cities had only one antenna tower for mobile phones.

　 Today’s mobile phones are small and easy to use.Now most cities have a lot of antenna towers，not just one.This means that each mobile phone doesn’t have to send its signal far away，so they don’t need to be so powerful.Mobile phones today use small batteries.A large city，where lots of mobile phones are used，can have hundreds of towers.

　 Do you know what use a mobile phone has? Yes，you can use it to do a lot of things.

　 Call your friends and family from almost anywhere.

　 Call the police immediately if there is an accident in the street.

　 Send or receive messages.

　 Sending short written messages is a popular way to use your mobile phone.Many people use short forms of words，so the messages are quick to write and read.Can you guess what these messages mean? Try reading them out.What do you hear?

　 RUOK?

　 CUL8r!

　 That’s EZ!

　 Will I C U B4 2moro?

　 That’s Gr8!

1.The writer talks about 　　　　 uses of a mobile phone.

　 A.three 　　　　 B.five 　　　　 C.seven 　　　　 D.nine

2.Why did the mobile phones need large powerful batteries some years ago?

　 A.Because most cities had only one antenna tower.

　 B.Because the mobile phones were too large.

　 C.Because the mobile phones could be used for a long time.

　 D.Because the mobile phones had to send their signal to faraway places.

3.What does the writer think of today’s mobile phones?

　 A.They are small but very powerful.

　 B.They are very popular and cheap.

　 C.They are very easy for us to use.

　 D.They are big enough to send a signal.

4.What does “Will I C U B4 2moro？” probably mean?

　 A.Will I see you before two past four in the morning?

　 B.Will I see you by 4∶02 in the morning?

　 C.Will I see you before tomorrow?

　 D.Will I see you by four tomorrow?

5.What does the writer write the article (文章) for?

　 A.To give us some common knowledge of the mobile phone.

　 B.To introduce how the mobile phone works and what use it has.

　 C.To tell us what short forms of words mean in written messages.

　 D.To show us in what way the mobile phone is expected to develop.

Adventure Vacations
People like different kinds of vacations. Some go camping. They swim, fish, cook over a fire and sleep outside. Others like to stay at a hotel in an exciting city. They go shopping all day and go dancing all night. Or maybe they go sightseeing to places such as Disneyland, the Tai Mahan or the Louver.
Some people are bored with sightseeing trips. They don’t want to be “tourists”. They want to have an adventure--a surprising and exciting trip. They want to learn something and maybe help people too. How can they do this? Some travel companies and environmental groups are planning special adventures. Sometimes these trips are difficult and full of hardships, but they’re a lot of fun. One organization, Earth watch, sends small groups of volunteers to different parts of the world. Some volunteers spend two weeks and study the environment. Others work with animals. Others learn about people of the past.
Would you like an adventure in the Far North? A team of volunteers is leaving from Mormons, Russia. The leader of this trip is a professor from Alaska. He’s worried about chemicals from factories. He and the volunteers will study this pollution in the environment. If you like exercise and cold weather, this is a good trip for you. Volunteers need ski sixteen kilometers every day.
Do you enjoy ocean animals? You can spend two to four weeks in Hawaii. There, you can teach language to dolphins. Dolphins can follow orders such as “Bring me the large ball.” They also understand opposites. How much more can they understand? It will be exciting to learn about these intelligent animals. Another study trip goes to Washington State and follows orcas. We call orcas “killer Whale”, but they’re really dolphins—the largest kind of dolphin. This beautiful animal travels together in family groups. They move through the ocean with their mothers, grandmothers and great-grandmothers. Ocean pollution is chasing their lives. Earth watch is studying how this happens.
Are you interested in history? Then Greece is the place for your adventure. Thirty-five hundred years ago a volcano exploded there, on Santorum. This explosion was more terrible than Karate or Mount Saint Helens. But today we know a lot about the way of life of the people from that time. There are houses, kitchens, and paintings as interesting as those in Pompeii. Today teams of volunteers are learning more about people from the past.
Do you want a very different vacation? Do you want to travel far, work hard and learn a lot? Then an Earth watch vacation is for you.
【小题1】The Tai Mahan may be _______.

People like different kinds of vacations. Some go camping. They swim, fish, cook over a fire and sleep outside. Others like to stay at a hotel in an exciting city. They go shopping all day and go dancing all night. Or maybe they go sightseeing to places such as Disneyland, the Tai Mahan or the Louver.

Some people are bored with sightseeing trips. They don’t want to be “tourists”. They want to have an adventure--a surprising and exciting trip. They want to learn something and maybe help people too. How can they do this? Some travel companies and environmental groups are planning special adventures. Sometimes these trips are difficult and full of hardships, but they’re a lot of fun. One organization, Earth watch, sends small groups of volunteers to different parts of the world. Some volunteers spend two weeks and study the environment. Others work with animals. Others learn about people of the past.

Would you like an adventure in the Far North? A team of volunteers is leaving from Mormons, Russia. The leader of this trip is a professor from Alaska. He’s worried about chemicals from factories. He and the volunteers will study this pollution in the environment. If you like exercise and cold weather, this is a good trip for you. Volunteers need ski sixteen kilometers every day.

Do you enjoy ocean animals? You can spend two to four weeks in Hawaii. There, you can teach language to dolphins. Dolphins can follow orders such as “Bring me the large ball.” They also understand opposites. How much more can they understand? It will be exciting to learn about these intelligent animals. Another study trip goes to Washington State and follows orcas. We call orcas “killer Whale”, but they’re really dolphins—the largest kind of dolphin. This beautiful animal travels together in family groups. They move through the ocean with their mothers, grandmothers and great-grandmothers. Ocean pollution is chasing their lives. Earth watch is studying how this happens.

Are you interested in history? Then Greece is the place for your adventure. Thirty-five hundred years ago a volcano exploded there, on Santorum. This explosion was more terrible than Karate or Mount Saint Helens. But today we know a lot about the way of life of the people from that time. There are houses, kitchens, and paintings as interesting as those in Pompeii. Today teams of volunteers are learning more about people from the past.

Do you want a very different vacation? Do you want to travel far, work hard and learn a lot? Then an Earth watch vacation is for you.

The Tai Mahan may be _______.

A. a shopping center      B. a hotel       　

C. a dancing hall    D. a place of interest

From the passage, on an adventure trip, people ______.

A. may not spend much time on sightseeing

B. won’t meet some difficulties or hardships

C. can’t enjoy them

D. can’t learn something

If you want to learn something about people of the past, you can _______.

A. join the team to Hawaii

B. join the team to the Far North

C. join the team to Washington

D. join the team to Greece

The word intelligent in paragraph 4 means _______.

A. exciting     B. beautiful

C. large   D. clever

Which of the following is false?

A. Some people find sightseeing trips boring.

B. Earth watch is planning all these special adventures.

C. The number of orcas is decreasing.

D. 3 volcano explosions in all broke out 3, 500 years ago in Greece.