1. A. can

2. B. wash

3. Fill in each blank with ONE suitable word. (10 points)

Space exploration costs a lot of money. Is it really necessary? Up to now, very few astronauts have had chances to visit space. (11) However, space research has benefited humans in many ways. Satellites in space send information to (12) Earth. Communications satellites mean easy and instant contact (13) with people afar. During the space trips, scientists can (14) learn more about human bodies. Some scientists even (15) dream of finding new homes for mankind on another planet.

1. Rearrange the given phrases to make a complete sentence. (10 points)

2. Robots can help doctors operate on patients.

3. Astronauts have to lock their sleeping bags to the wall.

4. Life can be really interesting as a scientist.

3.fiil in each blank with ONE suitable word
Space exploration costs a lot of money. Is it really necessary? Up to now, very few astronauts have had chances to visit space. (11) However, space research has benefited humans in many ways. Satellites in space send information to (12) Earth. Communications satellites mean easy and instant contact (13) with two people from afar. During the space trips, scientists can (14) learn more about human bodies. Some scientists even (15) dream of finding new homes for mankind on another planet
PART 5

1. .Rearrange the given phrases to make a complete sentence. (10 points)

2. Robots can help doctors operate on patients.

3. Astronauts have to lock their sleeping bags to the wall.

4. Life can be really interesting as a scientist.