Do you know that you can use your watch as compass（指南针）on a sunny day? Look at the watch which is on your hand and point the hour hand in the direction of the sun. Imagine a line which runs from the center of the watch through a point halfway between the hour hand and number one. This line will point south.
In the northern half of the earth the sun is in the south at noon. In our country the real noon is one o’clock. If at that time we point the hour hand at the sun, the hour hand and number one will point south. That’s why you must imagine a line which will run from the center of the watch through a point halfway between the hour hand and number one. It will point south.
If you are in the southern part of our planet, you must point number 12 at the sun. The line which you can imagine between number twelve and the hour hand will then show north.
76. The sun is in the south at noon .
A. in any country in the world
B. in the north of the equator
C. in the south of the globe
D. in some northern places of the earth
77. In the northern half of the earth, if we point the hour hand at the sun at one o’clock then .
A. the minute hand shows north
B. the hour hand shows north
C. number one shows north
D. number twelve shows north
78. If the people in the southern part of the earth point 12 at the sun at 5 o’clock, the minute hand shows .
A. west by north
B. north by west
C. north by east
D. east by north
79. What do you think of the story?
A. It’s interesting. But sometimes it doesn’t work.
B. It’s impossible. I don’t like it.
C. It’s useful. But it isn’t interesting.
D. It’s great. But it isn’t helpful.