1 . While astronauts in space get to do many exciting things，they miss out on ordinary things that we all take for granted—being able to walk on firm ground，hanging out with family and digging into a slice of hot steaming pizza． Though not much can be done about the first two things，there may soon be a solution to the third one，thanks to this cool 3-D pizza printer！
About a year ago，NASA offered $125 ,000 to Anjan Contractor， a 3-D technology expert，to build a device（设备）that would allow astronauts to make pizza on demand． The mechanical engineer promised that his invention would produce pies in large quantities that looked， tasted and even smelled like pizza made in common ovens．
Late last year， the engineer presented a video of his first prototype（原型）that begins by creating a single slice of dough（面团）that is cooked and printed at the same time．Then comes the tomato “sauce” — a mix of tomato powder，oil and water and finally，a protein slice that resembles cheese．While the video doesn’t show the baking process，the inventor says that once the pizza is printed，it can be ready to be consumed in 7 seconds．
While the pie in the video looks delicious enough to attract any pizza lover，Anjan Contractor is far from ready for astronauts．That’s because he still has to find a solution to make the food container in the printer last for 30 years．Though that may sound unrealistic，actually it is not．
Anjan Contractor believes that the only way that is possible is that the water is removed from all the ingredients（配料）and then they are reduced to the powder form．This，as you can imagine，will not be so easy．But，while the printer may not be ready for space，it certainly looks ready enough for people on earth．Hopefully，NASA and Contractor will consider selling it to those not fortunate enough to go to Mars！
1. Why does the author mention the things that astronauts in space cannot do？

A．To ask us not to take common things for granted．

B．To show they live a difficult life there．

C．To show their life is boring in space．

D．To introduce the topic of the text．

2. NASA offered $ 125，000 to Anjan Contractor mainly to _______．

A．create some new type of 3-D printer

B．attract more companies to work for NASA

C．help astronauts in space enjoy fresh pizza one day

D．produce pizza in large quantities to earn great profits

3. The biggest challenge that Anjan Contractor is faced with now is probably that _______．

A．he has no money left to go on with his research

B．the pizza doesn’t seem appetizing to pizza lovers

C．he has no way to make pizza that can last for thirty years

D．he cannot make the food container last for decades

4. What’s the best title of the passage？

A．NASA is trying its best to help astronauts eat better

B．Astronauts may soon be able to enjoy steaming hot pizza

C．NASA is working on making pizza for common people

D．A 3-D pizza printer has been used to make pizza

2 . The Boy Made It!

One Sunday, Nicholas, a teenager, went skiing at Sugarloaf Mountain in Maine. In the early afternoon, when he was planning to go home, a fierce snowstorm swept into the area. Unable to see far, he accidentally turned off the path. Before he knew it, Nicholas was lost, all alone! He didn’t have food, water, a phone, or other supplies. He was getting colder by the minute.

Nicholas had no idea where he was. He tried not to panic. He thought about all of the survival shows he had watched on TV. It was time to put the tips he had learned to use.

He decided to stop skiing. There was a better chance of someone finding him if he stayed put. The first thing he did was to find shelter from the freezing wind and snow. If he didn’t, his body temperature would get very low, which could quickly kill him.

Using his skis, Nicholas built a snow cave. He gathered a huge mass of snow and dug out a hole in the middle. Then he piled branches on top of himself, like a blanket, to stay as warm as he could.

By that evening, Nicholas was really hungry. He ate snow and drank water from a nearby stream so that his body wouldn’t lose too much water. Not knowing how much longer he could last, Nicholas did the only thing he could he huddled (蜷缩) in his cave and slept.

The next day, Nicholas went out to look for help, but he couldn’t find anyone. He followed his tracks and returned to the snow cave, because without shelter, he could die that night. On Tuesday, Nicholas went out again to find help. He had walked for about a mile when a volunteer searcher found him. After two days stuck in the snow, Nicholas was saved.

Nicholas might not have survived this snowstorm had it not been for TV. He had often watched Grylls’ survival show Man vs. Wild. That’s where he learned the tips that saved his life. In each episode (一期节目) of Man vs. Wild, Grylls is abandoned in a wild area and has to find his way out.

When Gxrylls heard about Nicholas’ amazing deeds, he was super impressed that Nicholas had made it since he knew better than anyone how hard Nicholas had to work to stay alive.

1. What happened to Nicholas one Sunday afternoon?

A．He got lost.	B．He broke his skis.
C．He hurt his eyes.	D．He caught a cold.

2. How did Nicholas keep himself warm?

A．He found a shelter.	B．He lighted some branches.
C．He kept on skiing.	D．He built a snow cave.

3. On Tuesday’ Nicholas       .

A．returned to his shelter safely	B．was saved by a searcher
C．got stuck in the snow	D．stayed where he was

4. Nicholas left Grylls a very deep impression because he       .

A．did the right things in the dangerous situation

B．watched Grylls’ TV program regularly

C．created some tips for survival

D．was very hard-working