B. a bamboo plant may grow 4.5 meters in three days

　　C. the bamboo plant changes its colors when it grows

　　D. a bridge held by bamboo cable was built thousands of years ago

　　44. Why did the engineers teach the poor farmers in Africa to make use of bamboo?

　　A. Because it is cheap. B. Because it is colorful.

　　C. Because it drills fast. D. Because it is used by Asians.

　　45. Which of the following is NOT true?

　　A. There are many different kinds of bamboo with different colors.

　　B. Cables made of bamboo can last for over a thousand years.

　　C. Bamboo can be used for buildings, bridges and watering projects(工程).

　　D. Bamboo plants are able to grow well in any part of the world.

　　 C

在第46-50题中，Henry一家, Peter和同学Maria, Michael, Dick, Jack夫妇分别都计划出游一次。阅读下面六则旅游广告（选项A、B、C、D、E和F），选出符合他们各自要求的最佳选项。选项中有一项是多余的。

______46. Henry and Kate, both teachers, and their two sons, have to take their holiday during the summer holidays. There must be plenty of things for the boys to do, although Henry and Kate just want to enjoy beautiful scenery, good food, wine and peace.

______47 Peter and Maria, university students, want to travel as far as possible on a little money, and would like to get to know a country by working there for three months with other young people.

______48. Michael, a young computer programmer, has been working hard and needs a holiday to relax in winter. He would like to go somewhere warmer and sunny, where he can swim in the sea, enjoy sports and dancing.

______49. Dick, a promising senior clerk, is a camping lover. He is planning to make use of his ten days leave to enjoy nature.

______50. Jack and his wife Mary, who have recently retired, want to see places of cultural and historic interest abroad, but Mary hates flying.

HOLIDAY HOMES IN MALLORCA

Holiday apartments in Mallorca sailing and fishing port-quiet even in summer season. Beautifully situated apartments with views of sea and mountains, yet near to shops and restaurants. Cars and bicycles for hire. Sailing and sports clubs nearby.

ITALY IN COMFORT

Luxury carriage tours of Italy, out of normal holiday season. Three week's leisurely time to visit five Italian cities starting from London 1st May-1st September. The tours are guided by Professor Martin Davis, formal head of Italian studies, London University. See the arts and culture of historic Italy.

KIBBUTZ HOLIDAY IN ISRAEL

Working holidays on a kibbutz (co-operative farm) in Israel. All nationalities