题目内容：

Japan’s youth are losing interest in science and as a result, threatening the nation’s industrial progress. According to Japan Science and Technology Agency, young Japanese are surrounded by high-tech devices(设备), but are not interested in how they work.

Japanese businesses have succeeded partly because they’ve a great many engineers. A drop in interest could lead to a decline(减少) in their numbers and quality. "In the past, the young had a big interest in science and technology," said Hirano, director of the agency’s policy department.

There are two main reasons for the problem. The first is known as "black box syndrome" of modern technology.

Electronic devices depend on tiny silicon chips（芯片）, which can only be made in big factories, whose workings can’t be seen by the eyes. The devices, unlike machines of the past driven by gears and wheels, are simply boxes.

Young Japanese, brought up on video games and at home with computers, enjoy using modern technology, but this is a passive interest and different from the interest in how things work. "You need an active interest to get interested in science. This is declining in the young," said Hirano.

About two-thirds of Japanese in their 20s use PCs, twice the number of those in their 50s. But only 40% of those in their 20s say they are interested in news about science and technology, compared to 60% of the 50 to 60 year olds.

"Another reason for it is that life in modern Japan is too comfortable," he said. "A wealthy society reduces people’s desire to modernize and develop their country. To a degree, you can’t avoid this when the fruits of science and technology are fully developed." Similarly, science in Europe and the US has also suffered a lack of interest.

1.Japanese youth’s interest in science is dropping probably because ________.

A. scientists don’t make much money in Japan

B. there are too many scientists in Japan already

C. they’re not interested in how high-tech devices work

D. science is more difficult for young people to learn

2.The underlined word "their" (in Para. 2) refers to ________.

A. Japanese engineers’

B. Japanese businesses’

C. Japan’s young people’s

D. high-tech devices’

3.Why does science meet the same problem in Japan, the US and Europe?

A. People believe they don’t need to develop their science any more.

B. People are satisfied with the comfortable life high-tech devices bring to them.

C. People think high-tech devices destroy the environment.

D. People don’t want to live the modernized life.

4.Which of the following is NOT true according to the passage?

A. Older people are probably more interested in science in Japan.

B. About one-third of Japanese people in their 50s use computers.

C. Japan’s youth live too comfortably to take interest in science.

D. Electronic devices are made of parts that can not be seen at all.