D
For generations, people have dreamed of traveling to Mars to explore Earth's closest planetary neighbor. NASA and other space agencies have announced plans to send people to the Red Planet. But such a manned mission is years away.
In the United States, some volunteers are learning how people will react to months of separation from other humans on a Mars base.
What would it be like to live on the planet Mars? Volunteers are spending eight months in an area that looks much like the surface of Mars. But actually, they are living in Hawaii.
Six people are isolated high on top of Mauna Loa, a volcanic mountain on the Big Island of Hawaii. They are living on a simulated, or make-believe, Mars Base. The American Space Agency, NASA, has provided financial support for the work. The project is called HI-SEAS, or Hawaii Space Exploration Analog and Simulation.
The six member HI-SEAS crew is mostly self-sufficient. They take care of themselves. Food and supplies are brought to them. But the individuals bringing those supplies cannot communicate with volunteers inside the habitat, or base.
The current crew has been living in the habitat since October, and will stay until June. Two earlier crews lived there before them. Crew members communicate with the outside world through e-mail and blogs. They also produce videos on the YouTube website.
Crew members also are using a smartphone app, or program, that creates a 20-minute delay for communications. That would be the same as if you were communicating from Mars.
This is not the only group of volunteers with sights set on Mars. A group called Mars One has appealed for would-be Mars astronauts from around the world. Mars One is a private, non-government project based in The Netherlands.
Others believe the American or European space agencies are the most likely to put people on Mars, maybe in the 2030s, or later.
For now, on a mountaintop in Hawaii, volunteers are getting a taste of life on a future Mars base.
What's the main idea of the Paragraph 1__________?

A．people have dreamed of traveling to Mars to explore it

B．ther are plans to send people to the Red Planet

C．such a manned mission is years away

D．people dream of traveling in space

What is HI-SEAS___________?

A．volunteers are spending eight months in an area

B．six people are isolated and are living on a simulated Mars Base

C．six people are living in Hawaii

D．NASA has provided financial support for the work

How do the six member HI-SEAS crew live in the Mar Base__________?

A．they can not communicate with the outside world

B．they are not self-sufficient

C．they take care of themselves

D．individuals can communicate with volunteers

Which of the following is TRUE__________?

A．HI-SEAS is the only group of volunteers with sights set on Mars

B．Mars One has not appealed for would-be Mars astronauts from around the world

C．Mars One is a government project

D．the American or European space agencies are the most likely to put people on Mars

What’s the main idea of the passage__________?

A．a program which allows volunteers to experience the life on Mars

B．people are dreaming of traveling to Mars

C．the life on Mars

D．six member HI-SEAS crew’s life

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