44. So far the great discovery scientists have made about the function of brain is ______.

A. the weight of brain B. two types of memory

C.30 billion nerve cells D.chemical and physical changes

45. Which of the following is TRUE?

A. The heavier the brain is, the better memory it has.

B. Scientists can open the brain without destroying it.

C. Memory is very important for early men.

D. Early men’s memory was better because they could remember a lot of things.

B

“Passengers for Paris, Berlin, Moscow, Peking, Nanking, Shanghai, Canton and Hong Kong, please go to Platform One.”

The travellers were now getting on the Central Kingdom Express at the Victoria Station. They were going to travel 142 days over 9 000 miles from London to Hong Kong. Among the passengers some were old people. Mrs Baily was the oldest in the party. She was a retired worker. “It’s no good sitting back if you retire,” she said, “One must do things one had no time to do. A trip like this will be very interesting .Won’t you think?”

The trip was organized by Sunquest Holidays. It would cost each traveler almost $ 2600. From Hongkong they would fly back to London.

Many of the passengers were interested in China. “I’ve always wanted to see China,” said Mr Haviland. “So I don’t mind spending six weeks on trains.” Another passenger, Mr Barber, said, “We wanted to go straight to see China and to eat Chinese food, which we love.”

46. The train wouldn’t go to ______.

A. Berlin B. London C. New York D. Nanking

47. Mrs Baily believed that______.

A. the retired people should leave home

B. a long journey would do good to the retired workers

C. she should go on working D. the retired people should have a good rest