C

There's a new frontier in 3D printing that's beginning to come into focus: food. Recent development has made possible machines that print, cook, and serve foods on a mass scale. And the industry isn't stopping there.

Food production

With a 3D printer, a cook can print complicated chocolate sculptures and beautiful pieces for decoration on a wedding cake. Not everybody can do that-it takes years of experience, but a printer makes it easy. A restaurant in Spain uses a Foodini to" re-create forms and pieces" of food that are" exactly the same,” freeing cooks to complete other tasks. In another restaurant, all of the dishes and desserts it serves are 3D-printed, rather than farm to table.

Sustainability(可持续性)

The global population is expected to grow to 9.6 billion by 2050, and some analysts estimate that food production will need to be raised by 50 percent to maintain current levels. Sustainability is becoming a necessity. 3D food printing could probably contribute to the solution. Some experts believe printers could use hydrocolloids(水解胶体)fom plentiful renewables like algae(藻类) and grass to replace the familiar ingredients(烹饪原料). 3D printing can reduce fuel use and emissions. Grocery stores of the future might stock "food" that lasts years on end, freeing up shelf space and reducing transportation and storage requirements

Nutrition

Future 3D food printers could make processed food healthier. Hod Lipson, a professor at Columbia University, said, "Food printing could allow consumer to print food with customized nutritional content. like vitamins. So instead of eating a piece of yesterday 's bread from the supermarket, you' d eat something baked just for you on demand."

Challenges

Despite recent advancements in 3D food printing，the industry has many challenges to overcome. Currently, most ingredients must be changed to a paste(糊状物)before a printer can use them, and the printing process is quite time-consuming, because ingredients interact with each other in very complex ways. On top of that, most of the 3D food printers now are restricted to dry ingredients，because meat and milk products may easily go bad. Some experts are skeptical about food printers, believing they are better suited for fast food restaurants than homes and high-end restaurants.

46．What benefit does 3D printing bring to food production？

A. It helps cooks to create new dishes.

B. It saves time and effort in cooking.

C. It improves the cooking conditions.

D. It contributes to restaurant decorations.

47．What can we learn about 3D food printing from Paragraph 3？

A. It solves food shortages easily.

B. It quickens the transportation of food.

C. It needs no space for the storage of food.

D. It uses renewable materials as sources of food.

48．According to Paragraph 4，3D-printed food____.

A. is more available to consumers

B. can meet individual nutritional needs

C. is more tasty than food in supermarkets

D. can keep all the nutrition in raw materials

49．What is the main factor that prevents 3D food printing from spreading widely?

A. The printing process is complicated.

B. 3D food printers are too expensive.

C. Food materials have to be dry

D. Some experts doubt 3D food printing

50．What could be the best title of the passage?

A. 3D Food Printing: Delicious New Technology

B. A New Way to Improve 3D Food Printing

C. The Challenges for 3D Food Production

D. 3D Food Printing: From Farm to Table

D

Give yourself a test. Which way is the wind blowing? How many kinds of wildflowers can be seen from your front door? If your awareness is as sharp as it could be, you' ll have no trouble answering these questions。

Most of us observed much more as children than we do as adults. A child's day is filled with fascination, newness and wonder. Curiosity gave us all a natural awareness. But distinctions that were sharp to us as children become unclear, we are numb (麻木的) to new stimulation(刺激), new ideas. Relearning the art of seeing the world around us is quite simple, although it takes practice and requires breaking some bad habits.

The first step in awakening senses is to stop predicting what we are going to see and feel before it occurs. This blocks awareness. One chilly night when I was hiking in the Rocky Mountains with some students, I mentioned that we were going to cross a mountain stream. The students began complaining about how cold it would be. We reached the stream, and they unwillingly walked ahead. They were almost knee-deep when they realized it was a hot spring. Later they all admitted they'd felt cold water at first.

Another block to awareness is the obsession (痴迷) many of us have with naming things. I saw bird watchers who spotted a bird, immediately looked it up in field guides，and said, a "ruby-crowned kinglet" and checked it off. They no longer paid attention to the bird and never learned what it was doing.

The pressures of “time” and “destination” are further blocks to awareness. I encountered many hikers who were headed to a distant camp-ground with just enough time to get there before dark. It seldom occurred to them to wander a bit, to take a moment to see what's around them. I asked them what they'd seen "Oh, a few birds, "they said. They seemed bent on their destinations.

Nature seems to unfold to people who watch and wait. Next time you take a walk, no matter where it is, take in all the sights, sounds and sensations. Wander in this frame of mind and you will open a new dimension to your life.

51．According to Paragraph 2, compared with adults, children are more____.

A. anxious to do wonders

B. sensitive to others' feelings

C. likely to develop unpleasant habits

D. eager to explore the world around them

52．What idea does the author convey in Paragraph 3?

A. To avoid jumping to conclusions.

B. To stop complaining all the time.

C. To follow the teacher's advice.

D. To admit mistakes honestly.

53．The bird watcher’s behavior shows that they____

A. are very patient in their observation

B. are really fascinated by nature

C. care only about the names of birds

D. question the accuracy of the field guides

54．Why do the hikers take no notice of the surroundings during the journey?

A. The natural beauty isn't attractive to them.

B. They focus on arriving at the camp in time.

C. The forest in the dark is dangerous for them.

D. They are keen to see rare birds at the destination.

55．In the passage, the author intends to tell us we should____.

A. fill our senses to feel the wonders of the world

B. get rid of some bad habits in our daily life

C. open our mind to new things and ideas

D. try our best to protect nature

第一节：阅读表达(共5小题：每小题2分，满分10分)

阅读短文，按照题目要求用英语回答问题。

Some people live to climb the highest mountains Some people live only dreaming about it while others live to avoid ever climbing at all. But one thing is certain, all people cncounter mountains in their life.

When I was a little girl, my family moved to a tiny town at the bottom of a big mountain. One day after school, while exploring the green woods of this magnificent mountain, I almost fell on a set of stairs. What could these steps lead to？ Curiosity got the best of me as I knew it would be starting to get dark soon. I started climbing up those strangely mysterious steps.

I climbed and climbed. There was nothing but just green bushes and these steps. I had to reach the top! But it was now getting real dark. If I kept going I might not be able to see my way back. My mum would be worried sick if I didn't come home soon. So I ran back home almost in the dark while trying not to get too scared.

Anxiously I went to bed dreaming about what I would find at the top of this magical mountain. Could there be a castle up there? Maybe I would find a monster（怪物）.Maybe I was taking the risk of never coming back home, Or, maybe all I would find was absolutely nothing! But something inside me was going to climb that mountain at all cost. I could hardly wait to try this adventure again.

Now we live in a world surrounded by the "can't do" "attitudes. ____. We all have doubts and regrets. Still we must climb and dream about what's at the top of our mountain. Monsters may appear or the night will fall. But never ever give up on your dream! Never let anyone tell you,“ You can’t” Dream big and climb high！

56. What made the author start to climb up the stairs to the mountain top？（no more than 5 words）

57. Why did the author hurry back home without reaching the top of the mountain？ Give two reasons.（no more than 15 words）

58. How would you describe the author in terms of personalities according to Paragraph 4？（no more than 10 words）

59. How do you understand the underlined sentence in the last paragraph？（no more than 5 words）

60. what’s your attitude towards the“mountain”in your life？Please explain.（no more than 20 words）