73. What did Marco do when he was in China?
A. He worked for the emperor. B. He learned to build city streets.
C. He helped to dig for coal. D. He finished a book about his trip.
74. What would be the best title for the passage?
A. Magic “black stones” B. Marco Polo in China
C. Paper money on Daidu D. Kublai Khan—the greatest emperor
B
Robots seem to be getting cleverer and cleverer. Here are four examples. Budgee ·He was created by Five Elements Roboties. ·With two wheels and a little basket, he can carry things for you while you’re at the shops. Paro ·He was made by Takanori Shibata. ·He is used on patients in hospitals. ·He can learn a name and even show feelings such as surprise, happiness and sadness. Simon ·He was developed by the Georgia Institute of Technology. ·He can clean up offices. ·In tests, he could tell whether someone was paying attention to him or not. Rover ·He was created by a team at Sydney University. ·He is used to make cows move together from a field to a diary（牛奶场）. 75. Which robot can help you when you are shopping?
A. Budgee. B. Simon. C. Paro. D. Rover. 76. We can learn from the passage that Paro .
A. can tell whether others pay attention to him B. was created by Five Elements Roboties
C. can help cows produce more milk D. is used on patients in hospitals 77. What can Simon do according to the passage?
A. Show feelings. B. Clean offices. C. Move cows. D. Learn names.
78. Where does the passage probably come from?
A. health report. B. A tourist map. C. A science magazine. D. A medical dictionary.
C
The olive（橄榄）tree probably first grew in southern Asia. And then it spread to Mediterranean（地中海的）countries about 6,000 years ago. Since then, it has been important in Mediterranean people’s lives.
The olive tree grows in rocky places and it doesn’t need much water. Its fruit can be made into olive oil. People have used olive oil to cook dishes for centuries. But they haven’t only used it for cooking. Some ancient cultures believed that it