题目

大豆是一种常见的双子叶植物，它在分类学上的显著特征是 A．网状叶脉、须根系                    B．网状叶脉、直根系 C．平行叶脉、直根系                    D．平行叶脉、须根系 答案：B阅读理解。     A couple (夫妇) have travelled around the world in 297 days-without taking any planes. Tom Fewins andLara Lockwood used 78 buses, 61 trains, 34 cars, 18 boats, six bicycles, and even one elephant. They wantedto prove that tourists can still be well travelled without damaging the environment. They aimed to product lessthan 3,000 kg of carbon dioxide (二氧化碳), compared with six times that amount if they had gone by plane.     They spent ten months travelling 44,609 miles through 18 countries on land and sea. The couple's world tour began in June 2008 with a two-hour bus journey to London from their home in Oxfordshire. They took the train, Eurostar, to Brussels and then caught a bus and train to Hamburg before going to Copenhagen.      The couple even rode on an elephant for l 5 miles through the Chinese part of the Mekong River (湄公河). The couple hoped to write a book based on their journey to teach other travelers how to travel without damaging the environment. 1. How long did it take the couple finish their journey? A. About 78 days B. About 34 weeks C. About 10 months D. About a year 2. Where did the couple begin their tour? A. London B. Oxfordshire C. Brussels D. Copenhagen 3. How many ways of transportation did the couple use to travel around the world according to the passage? A. Four B. Five C. Six D. Seven 4. Why did the couple travel like this?. A. They liked to travel in this way. B. They aimed to product 3,000 kg of carbon dioxide.C. They wanted to prove that tourists can still be well travelled only by bike. D. They hoped to write a book and taught the travelers to protect the environment.