1. How many shapes does a cylinder cross section have (name three) (you have 10 seconds to answer, please answer) (5 points for the 2008 foreign test)

2. Looking at the fifth floor of the micro tower from a distance, the red light is doubled. Lighting *** 186. How many lights are there at the top of the tower? (In 2008, the test questions outside the city scored 7 points)

The teacher said to the students, "If I give you a dollar, we will have the same amount of money." . If you give me a dollar, I have twice as much money as you. "How much money do teachers and students have? (In 2009, the test questions outside the city scored 7 points)

4. Observe the following items and then answer: (20 10, 10)

The cube of 1 = 1

The third power of 2 =3+5=8

The third power of 3 =7+9+ 1 1=27.

The cube of 4 =13+15+17+19 = 64.

The cube of 5 = 21+23+25+27+29 =125.

……

10 cube =? +……+?

The cubes of Q 1 and 10 are formed by adding several consecutive odd numbers.

2. What is the biggest of these odd numbers?