1、-Each passenger is allowed to bring one bag onto the plane.-Weight limit: Each carry-on bag may weigh up to 10 kilos. -Size limit: Each carry-on bag can be up to 110cm long, 60cm high and 30cm wide.-Additional bags and oversized/overweight bags may be allowed on the plane if there is enough room. Th
2、ere will be a fee for such bags （see the table below）. Please note that if your bag breaks more than one rule then you must pay a fee for each rule broken.Safety RulesFor the safety of our passengers, the following items must not be taken onto the plane:-Bottles containing gas （e.g. cigarette lighte
3、r）-Bottles containing any cream, oil or other liquid that are over 100ml.Note:If you have any liquid medicines over 100ml that you must use during your flight, please contact our customer service manager on 34533566 to make arrangements at least 24 hours before your departure. You will need to have
4、a doctors letter explaining why you need the medicine.Bag Fees*No bag over 15 kilos will be allowed on the plane. *No bag over 150cm long or 80cm high may be taken on the plane. Passengers must put such bags in the planes storage.RuleFeeOverweight*Bags heavier than 10 kilos￥100 per kilo over limitOv
5、ersized*Bags larger than 110cmX60cmX30cm￥250 per bagExtra bags￥400 per extra bag21. What is not allowed to be taken onto the plane by a passenger?A. A gas bottle B. Medical equipmentC. A 100ml bottle of cream D. A bag that is 120cm long22. When must a passenger speak with the manager about taking ov
6、er 100ml of liquid medicine onto their flight?A. After they get on the plane B. Six hours before their flightC. When they arrive at the airport D. At least one day before their flight23. How much will a passenger pay for a carry-on bag that is 110cmX50cmX25cm in size and weighs 13 kilos?A. 250yuan B
7、. 300yuan C. 550yuan D. 850yuanBThe sun was rising when Daryls delivery truck reached the highway. This was the best time of day to drive, when the roads were wide open and empty. He felt sure he was going to make it to Los Angeles before midnight. It looked like it was going to be a good day.Then h
8、e saw it, a large lump in the middle of the road. Daryl often passed dead animals on the roadside but he knew then this was something different. He slammed on his brakes and the truck screeched to a halt.The lump was a girl. He tried shaking her awake but she wouldnt move, so he picked her up and ca
9、rried her to the side of the road. At least she wouldnt be run over there.Now she was someone elses problem. He had to make it to Los Angeles by midnight and didnt have time to be a here. He climbed back into his truck but as he looked in his mirror and saw the girl lying still by the side of the ro
10、ad, he knew he couldnt leave her. Daryl put her into his truck and drove to the next town.An hour later he pulled up at the police station. After explaining what had happened, he prepared to leave, only for the policeman to say that he needed to make a report. Daryl knew this would take several hour
11、s, but he had no choice. There was no way hed get to Los Angeles on time now.Three hours later the report was done and the girl had recovered somewhat. She explained that she had fallen on the highway, weak from hunger, but could remember nothing else. She also thanked Daryl for saving her life. Dar
12、yl told her that he had been happy to help, but as he got back into his truck he knew his boss wouldnt be.Just as he was about to pull back onto the road, his mother called. “Have you seen?” she said, “A bridge collapsed two hours ago, the one that you drive over on the way to Los Angeles.”Daryls bl
13、ood run cold. If he had been on time, he would have been on that fallen bridge about two hours ago. Daryl realized how lucky he was.24. What did Daryl plan to do in Los Angeles?A. Go on holiday. B. Deliver some goods.C. Visit his mum. D. Report to his boss.25. Why did Daryl first leave the girl by t
14、he side of the road?A. He didnt want to be late. B. He thought the girl would be fine.C. He knew that someone else would help. D. He worried the police would blame him.26. How did Daryl feel after he left the police station?A. Confident that he would be on time. B. Angry that he had to make the repo
15、rt.C. Proud that he had saved the girls life. D. Worried that his boss would be angry.27. What does the underlined expression “Daryl blood ran cold” in the last paragraph suggest?A. Daryl was now feeling more relaxed. B. Daryl thought he would be in trouble.C. Daryl was greatly shocked by the news.
16、D. Daryl felt the sudden change in temperature.CHave you ever wondered when dogs first became “mans best friend” and the worlds favourite pet? If you have, then youre not alone. When and where dogs first began living side-side with humans are questions that have stirred hot debate among scientists.
17、There are a few hard facts that all agree on. These include that dogs were once wolves and they were the first animal to be domesticated（驯养） by humans. They came into lives some 15000 years ago, before the dawn of agriculture.Beyond that, there is little agreement. The earliest bones found that are
18、unquestionable dogs and not wolves date from 14,000 years ago. However, 30,000-year-old skulls have been discovered in France and Belgium that are not pure wolf and some scientists think could be dogs.With such puzzling evidence, many scientists are now turning to DNA to find out when and where dogs
19、 were first domesticated. In one research project, tens of thousands of blood samples have been taken from street dogs around the world. The plan is to compare them with those of wolves. Its even possible to analyse DNA from ancient bones. Tiny pieces of the 30,000-year-old skulls mentioned earlier
20、are currently being studied, and another DNA study has already shown that ancient dogs preserved in the Alaskan ice-fields evolved from Asian wolves, not American ones.Indeed, the ancient DNA may turn out to be more informative than the DNA of living dogs. Because dogs have accompanied humans around
21、 the world for thousands of years, their current distribution may tell us very little of their origins. This is why different groups of scientists believe that dogs variously originated in eastern Asia, Mongolia, Siberia, Europe or Africa.But why were the animals domesticated in the first place? The
22、 most recent theory is that dogs domesticated themselves, initially living in and around our ancient villages to eat any food thrown out. Today, this is a way of life still shared by three -quarters of a billion unowned dogs worldwide.28. Which is the only statement generally agreed on by scientists
23、 studying dogs?A. They originally were used as farm animalB. They evolved from wolves found in Europe C. They helped the development of agricultureD. They were the first animal to be kept as pets29. Why does the writer first mention the 30,000-year-old animals skulls?A. To show that dogs were much l
24、arger in the pastB. To prove that dogs developed from Asian wolvesC. To suggest that dogs may have evolved much earlierD. To argue that dogs were first kept in France and Belgium30. How did scientists determine the origins of the ancient dogs found in Alaska?A. By analyzing the age of their bones B.
25、 B. By examine the animals DNA C. By studying the shape of their skulls D. D. By comparing them with modern dogs31. Why did dogs start living with humans?A. Because they were attracted by food B. B. Because they were trapped by humansC. Because they couldnt survive in the wild D. D. Because they wer
26、e trained to protect villages DSpace is a dangerous place, not only because of meteors（流星） but also because of rays from the sun and others stars. The atmosphere again acts as our protective blanket on earth. Light gets through, and this is essential for plants to make the food which we eat. Heat, t
27、oo, makes our environment endurable. Various kinds of rays come through the air from outer space, but enormous quantities of radiation from the sun are screened off. As soon as men leave the atmosphere they are exposed to this radiation but their spacesuits or the walls of their spacecraft, if they
28、are inside, do prevent a lot of radiation damage. Radiation is the greatest known danger to explorers in space. The unit of radiation is called “rem”. Scientists have reason to think that a man can put up with far more radiation than 0.1 rem without being damaged; the figure of 60 rems has been agre
29、ed on. The trouble is that it is extremely difficult to be sure about radiation damage - a person may feel perfectly well, but the cells of his or her physical organs may be damaged, and this will not be discovered until the birth of deformed children or even grandchildren.Missions of the Apollo fli
30、ght have had to cross belts of high amount of rems. So far, no dangerous amounts of radiation have been reported, but the Apollo missions have been quite short. We simply do not know yet how men are going to get on when they spend weeks and months outside the protection of the atmosphere, working in
31、 a space laboratory. Drugs might help to decrease the damage done by radiation, but no really effective ones have been found so far.32. According to the first paragraph, the atmosphere is essential to man in that _ A. it provides enough light for plant growth. B. it protects man against the harmful rays from space. C. it supplies the heat necessary for human survival. D. it screens off the falling meteors.33. Why is it difficult to iden
