My friend Wang Mei has helped me ________ my math homework．

1. A.
   with
2. B.
   to
3. C.
   at
4. D.
   in

Chinese space lover Wang Yuan has been chosen as one of the volunteers for the Mars-500 test project.    1.    Another five volunteers are all space . They are three Russians, an Italy-Colombian and a Frenchman. They will feel what it's like to travel to Mars without leaving the earth. During the whole process (过程), they are locked up for one and a half years under the condition which is similar to the red planet. So the experiment is called Mare-500.

         2.   Although the volunteers won't leave the building, they will feel as if(好像) they are on a real trip to Mars. The most difficult thing is that they will be separated from he people outside.   3.   That will be hard. When reporters asked what they would miss most during the 500-day special life, Charles from France said, "For me, it will be mainly my family, the sun and fresh air."

     The main task is to study "Man and Environment". It will care about the astronauts' physical

effects and the experience of staying there.  4.   So they will have to make decisions by themselves and then report to the earth, and the earth will tell them whether they do the right thing or not.

     Each astronaut is preparing for the great challenge. And people are looking forward to the result of the experiment.

A. Everyone will stay and work there alone.

B. For 18 months, they won't see sunsets or sunrises.

C. The Mars-500 test will be in a special building in Moscow.

D. He was very happy to be chosen and will accept the challenge.

5.According to the passage, which of the following is TRUE?

A. Five space lovers were chosen as volunteers.

B. The Mars-500 test will take place in Paris.

C. The volunteers will face many sorts of difficulties.

D. The Mars-500 test is about a real trip to Mars.

WangXiaojun, a 12-year-old boy, lives in the countryside in Hubei Province. Today is his birthday. His parents have prepared a nice dinner for him, but the boy says, A. I won’t have dinner because after dinner, today is over, and my parents are leaving for Shenzhen tomorrow. I don’t want to let them go.

It is the first birthday that Wang Xiaojun has spent with his parents in three years. In the past three years, his parents have worked in Shenzhen to make money. They B. ______ (not see) their son for three years. Tomorrow they have to leave for Shenzhen again.

Wang is not the only left-behind child (留守儿童). In the countryside of China, there are more than 20 million children C. _______ (stay) at home without their parents. Left-behind children face a lot of problems. Most of them stay with their grandparents. They get less care from their parents. D. 他们常感到孤独。Some of the don’t learn well because their parents can’t help them E. _______ their studies.

The Chinese government cares about the children very much and is trying to solve their problems now.

1.将A处画线句子译成汉语。

                                                 .

2.在B、C两处填入所给词的适当形式。

B:                         C:               

3.将D处画线句子译成英语。

                                                 .

4.在E处填入合适的介词。

E:            

5.根据短文回答问题。

Why don’t many left-behind children learn well?

                                                   .