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Can food be free, fresh and easily accessible? That¡¯s the bold (´óµ¨) question that the city of Seattle is hoping to answer with a new experimental farm not far from the city¡¯s downtown area that will have fruits and vegetables for anyone to harvest this fall.

On Beacon Hill, just south of central Seattle, landscape developers and a few affordable-food advocates are building an eatable food forest. Everything grown in the area will be eatable. And it¡¯ll be open around the clock to anyone who wants to come and pick some fresh blueberries or pears.

Organizers shared with National Geographic a list of the crop offerings. Many are expected: apples, berries and tomatoes. But others are pretty far-out. A large Asian community in the area suggested things like Asian pears and honeyberries. A European influence led to the planting of medlar trees.

The concept is modeled on permaculture, a design system and school of thought emphasizing the use of renewable nature resources and the enrichment of local ecosystems. Offering people free, fresh food is one motivation, but making the land useful and ecologically enriched is the larger goal.

That being said, some potential problems come to mind. What if all of one fruit is gone the first weekend when it¡¯s ripe? What if people pick things too early and spoil the potential for everyone?

Organizers aren¡¯t concerned about those questions. ¡°We¡¯ve had many discussions about what would happen if someone comes and picks all the blueberries,¡± says Margarett Harrison, the landscape architect designing the project.¡± But that¡¯s been considered as a good thing. We¡¯ll just plant more.¡±

Anything related to agriculture and good food ¡ª in large quantities ¡ª takes time. Most of the trees won¡¯t be mature enough for a few more years. But a few decades could make the area impressively productive.

Idealistic? Perhaps. But it¡¯s the kind of idealism that anyone who likes to eat fresh things from time to time can get behind. And that¡¯s the type of motivation that organizers hope will keep going.

1. Paragraph 3 is mainly about _______.

A. the crops that will be harvested this fall

B. people¡¯s attitude towards the project

C. which communities live in the area

D. how the food selection was made

2.What¡¯s Margarett Hrrison¡¯s attitude towards the potential problems the forest may face?

A. Concerned. B. Cautious.

C. Optimistic. D. Uninterested

3.The text is mainly about ______.

A. Seattle¡¯s free food experiment

B. what the future of forests will be

C. agricultural development in Seattle

D. how to keep in harmony with nature

Humans may not have landed on Mars £¨»ðÐÇ£© just yet, but that isn¡¯t stopping a European company from devising a plan to send four people to the Red Planet within the next few years. This project, called Mars One, aims to send a small group of people to Mars in 2022 and eventually establish a permanent colony on the planet.

¡°Everything we need to go to Mars exists,¡± said Mars One co-founder Bas Lansdorp in March 2014. ¡°We have the rockets to send people to Mars, the equipment to land on Mars, the robots to prepare the settlement for humans. For a one-way mission, all the technology exists.¡± Yet the four astronauts chosen for the trip will be stuck on Mars¡ªforever. And despite Mars One¡¯s thorough planning, there are a number of challenges that may prevent the mission from ever taking place. The biggest road block could be the mission's huge cost £¨$6 billion£©. However, Lansdorp is confident that Mars One will be able to fund the project by selling the broadcast rights for the mission and subsequent experiences living on the planet.

Those broadcast rights will also play a part in helping to select the people who will be sent to Mars. Lansdorp said the company will hold a selection process similar to a reality show. Lansdorp is expecting at least 1 million applications from people around the world. In addition to the cost, several other potential problems could inhibit £¨×èÖ¹£© the mission to Mars.

¡°It¡¯s even more challenging to send people there with life support, with food, with air, with all the other things like books, entertainment, means of communication and of providing for their own resources for a long stay on Mars,¡± said Adam Baker, senior lecturer in space engineering at Kingston University in London. ¡°The size of the rockets you¡¯d need to do this would be absolutely colossal.¡±

1.According to Project Mars One, humans could send four people to Mars within the next ________years.

A£®seven B£®eight C£®ten D£®six

2.According to Bas Lansdorp, which of the following is NOT TRUE?

A£®Robots are prepared for the settlement for humans.

B£®He could not come up with the fund for Mars One.

C£®We humans have the rockets to send people to Mars.

D£®The equipment is ready for humans to land on Mars£®

3.The word ¡°colossal¡± in the last paragraph is closest in meaning to ___________.

A£®very large B£®very small

C£®medium D£®average

4.Which of the following is an appropriate title for this passage?

A£®Ready for a Round Trip to Mars

B£®Ready for a Short Visit to Mars

C£®Ready for a One-way Trip to Mars

D£®Ready for a Walk on Mars

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