Please tell me________. I have some gifts for him.

A. how has Robert come     B. where Robert is  

C. when will Robert leave  D. what does Robert like

The rockets take astronauts and man-made satellites into space. The satellites are used for communication, weather monitoring and research. But how do satellites stay up without falling down?

There are two opposite forces (力量) acting on the satellite. One of them is the force of gravitation (地心引力), which tries to pull the satellite towards the earth. The other force is created by the rotation (旋转) of the satellite around the earth. This force tries to take the satellite away from the earth. With these two forces, the satellite goes round and round. The gravitational pull of the earth (the force which pulls everything towards the ground) is like a rope which keeps the satellite from flying away.

Everything that goes up has to come down. It is only a matter of time before a satellite comes back to the earth. As time goes by, the satellite loses its speed, which makes the gravitational pull stronger than the force pulling it away. This makes the satellite crash (坠落) down to the earth.

1.Which of the following uses of satellites is NOT mentioned?

A. communication                   

B. monitoring the weather condition

C. doing some research             

D. taking pictures

2.The force that pulls the satellite towards the earth is created by ________.

A. the earth                       

B. the satellite itself

C. the rotation of the satellite           

D. the rope 

3.Why can’t the satellites fly away?

A. Because of the force from the earth.

B. Because the satellite is too big.

C. Because of the force created by the rotation of the satellite around the earth.

D. Because people on earth have made ropes to tie the satellites tightly.

4.The satellite will finally crashes down to the earth ________.

A. when it flies faster            

B. when its speed slows down

C. when people cut the rope        

D. when there is no electricity in it

5.Which of the following is TRUE according to the passage?

A. There are four forces acting on the satellite.

B. The force of gravitation makes the satellite go round and round.

C. As time goes by, the satellite will finally fall down.

D. The satellite will stay in space forever.

Please tell me________. I have some gifts for him.

A. how has Robert come   B. where Robert is  

C. when will Robert leave  D. what does Robert like

As we know, Meizhou Island is a famous place of interest in Putian. My pen pal from Australia, Sam, would like to visit it very much. He is coming here for a holiday next week. He is planning to stay here for seven days. He has never come to Putian before, so he needs to know something about it. The weather is the most important thing that he would like to know. He wants to know what he should get ready for the trip and what kinds of clothes he has to take with him. Here is the seven-day weather report for Putian.

【小题1】How long will Sam stay in Putian?