1 . Tired of your ordinary earthly vacations? Some day soon you might be able to board a rocket and get a room with a view of the whole planet — from a hotel in space.

At least, that is the sales pitch(高调) of several companies racing to become the first to host guests in orbit on purpose-built space stations.

“It sounds kind of crazy to us today because it is not a reality yet,” said Frank Bunger, founder of U.S. aerospace firm Orion Span, one of the companies vying to take travellers out of this world. “But that’s the nature of these things, it sounds crazy until it is normal.”

U.S. multimillionaire Dennis Tito became the world's first paying space tourist in 2001, travelling to the International Space Station (ISS) aboard a Russian Soyuz rocket for a reported $20 million. A few others have followed. Since then, companies like Boeing, SpaceX and Blue Origin have been working on ways to bring the stars into reach for more people — opening up a new business frontier for would-be space hoteliers.

U.S. space agency NASA announced in June that it plans to allow two private citizens a year to stay at the ISS at a cost of about $35,000 per night for up to a month. The first mission could be as early as 2020.

But the growing movement has raised questions about the adequacy of current space laws, which mainly deal with exploration and keeping space free of weapons, not hotels and holidaymakers.

“It is difficult now to want to do things in space and get a clear answer from space law,” said Christopher Johnson, a space law adviser at the Secure World Foundation, a space advocacy group. “For something as advanced as hotels in space there is no clear guidance.”

1. What does the underlined word “vying” in Para. 3 mean?

A．Promising.	B．Competing.
C．Hesitating.	D．Risking.

2. Why was Tito mentioned in Para. 4?

A．To show he was wealthy enough.

B．To praise his contribution.

C．To tell us he was very brave.

D．To emphasize he took the lead.

3. How does the fifth paragraph develop?

A．By summary.	B．By comparison.
C．By listing figures.	D．By giving examples.

4. What can we learn from Christopher Johnson?

A．He opposes space travel.

B．He is in charge of a space law.

C．It’s urgent to make a space law.

D．Space hotels are badly needed.