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C.F ive days.

D.F ive and a half days.

( ) 3. If a student wants to go to a high school in Japan, he or she must ______.

A.p ay a large amount of money

B.s tudy at primary and secondary school for 9 years

C.t ake part in (参加) the exam and pay a little money

D.p ass the exam and pay a little money

( ) 4. What is mentioned in the passage?

A.T ypes of colleges.

B.P erio ds for different schoolings.

C.T he teaching staff (教职员工).

D.T he number of children attending schools.

( ) 5. According to the passage what is true?

A.A lmost all Japa nese children have school education.

B.J apanese schools have three vacations

C.J apanese children have freedom to choose schools.

D.W eekdays are from Monday to Sunday.

B

From a plane we can see the fields, cities, mountains or seas below. If we go into space, we see more and more of the earth. People and man-made satellites have been sent out into space to look at the earth carefully and people have learnt more about the earth in the last few years.

The sea looks very beautiful when the sun is shining on it. But it can be very terrible when there is a strong wind.

The sea is very big. It nearly covers three quarters of the earth. The sea is also very deep in some places. There is one place and at that place the sea is about 11 kilometers deep. The highest mountain in the world is about 9 kilometers high. If that mountain was put into the sea at that place, there would be still 2 kilometers of water above it!

In most parts of the sea, there are many kinds of fishes and plants. Some live near the top of the sea. Others live deep down. There are also a lot of small living things, and lots of fishes live by eating them. The sea can be very cold. When people go down, the sea becomes colder and colder. Only some men can go down into the deep sea. But, in 1970, five women scientists (科学家) lived in the deep sea for fourteen days.

（）6. This passage is_________.

A. a short story

B. for science reading

C. a piece of news

D. a report

（）7. The sea covers about _______of the earth.

A One third B. One fourth

C. Two quarters

D. Three fourths