【推荐1】The Pop-up Igloo

Polar bears are warm-blooded animals with heavy fat and fur that can survive in freezing Arctic temperatures. They have two types of fur—the long oily hairs and short thick hairs. By _________ the characteristics of these two hairs and their black skin underneath, the polar bears can keep themselves warm. _________ by polar bears, a team of students from the Royal Danish Academy designed a pop-up igloo(弹出式冰屋)—an emergency tent that might make survival in sub-zero areas much more manageable.

Led by Henry Glogau, the team said that their design aims to _________ those lost or stranded in extreme conditions. With little visibility and no phone coverage, people may face severe _________ while waiting for rescue in cold polar areas. Rather than fight against the extreme conditions, the team looked to use them to its _________. “Inspired by snow caves and the conventional winter-used tents, we treat snow as a(n) _________ material rather than a burden,” the team told Vigour Times website.

The pop-up igloo adopts a mylar(聚酯薄膜) material, which works _________ to polar bears’ skin. Besides their thick fat and fur, polar bears have black skin underneath, which is ideal for absorbing rays from the Arctic sun to keep themselves warm. The mylar material gives _________ to its inhabitants in the same way by reflecting sunlight into the space inside the tent. The pop-up igloo also features an origami-like(像折纸的) design, which helps to _________ the snow and secure the tent. The origami pockets create areas where snow can __________ on the outside. It prevents heat from escaping from the tent, while holding the tent to the ground. Researchers ensured that the tent could withstand the weight of a 70kg human standing on top to remain __________ in extreme conditions. This adds another__________ layer to everything inside.

The team put the tent through __________ testing for one month in Alaska to see its capability. The results showed that at 11.8 to 15 inches of snow cover, a 37℃__________ in temperature between inside and outside could be maintained on average. In the future, the pop-up igloos could be __________ along hiking routes in cold areas like the Arctic, where they could be set up in seconds when needed.

When Billy went outside, he saw a car with no _______ waiting for him. The car said, “Hello, I will be ______ you to school every day. Now would you please _______ your school ID card?” said the car. So Billy showed the car his school ID card and got in. The _______ began to talk to Billy about his school and his schoolwork. After that the car said, “I will _______ your homework today _________ you will have a very, very important lesson to _________ in school today. Please put your homework on the blackboard.” Billy did so.

The car checked Billy’s homework and then said, “You are a(n) ________ student. All of your homework is ________.” When they ________ the school, Billy said to the car, “Goodbye. See you later.” The car said to Billy, “Good luck in your school.” Billy got into the classroom and _______ his seat at the front of the room. Then his teacher came in and said, “Welcome, children! Today we will have a hard but _________ lesson — ‘How do robots help a human being?’...”

【推荐1】I was born a girl full of adventurous ideas.I spent many childhood afternoons looking at airplanes passing over my house. I ________ what the pilots were doing in those silver ________. I hoped to fly an airplane one day, but people said that was only men's job . Despite all these words，I still couldn’t give up my dream of becoming a pilot one day.

After earning my driver's license, I drove to a local ________. For twenty dollars, I took an introductory flying lesson and flew up into the sky with an instructor.

Such lessons were ________, though. I was only a student. Then, I had an ________. I applied to the school owner to ________ for them in exchange(交换) for flying lessons. Much to my astonishment ,he ________. Soon, I was busy behind the front desk after school, working hard to ________ my time in the air. Flying airplanes made me feel alive in a way I never knew was ________. But away from the airport, I was so afraid of being ________ that I kept my flying lessons a secret. ________, everyone knew girls couldn't be pilots; it would be ________ to even try.

I fell in deeper love with flight with every trip into the sky, but that joy was not what ________ permitted me to break free from both the________ and self-imposed(自我强加的) limits I had long ________. What freed me to believe I could do anything was the way I was ________ at the airport. There, I was surrounded by people who believed in me and supported me, and for the first time I believed in myself, too.

One simple ________ to the airport led me to the unexpected journey to become a woman ________, whose number is small in the man-charged airline industry.

Decades have passed,and I realised the decision that I made many years ago was right, and all the efforts finally ________. Meanwhile ,I was also really grateful to those people who chose to stand by me all the way. “ Nothing is impossible to a willing heart”,as for those young people who are in a dilemma in making decisions about their future jobs or dreams nowadays, this is ________ I just want to tell them.So, right now ,follow your heart and pursue your dream! NEVER SAY NEVER!

【推荐3】Saul and Keon have never felt bored with a day of work picking up trash in Miami Beach. They were especially ______ when they were covering their route this week as a beautiful ______ awaited them. When their   huge truck rolled down the street into the North Bay Road community, they found most residents (居民) lining the street with signs and balloons, all to ______ say “we love you”.

Jennifer Elegant wanted to show her family’s appreciation ______ she organized the socially-distancing surprise “thank you” ______ to honor the workers. Even the Miami Beach mayor, Dan Gelber showed up to ______ the two heroes-because Saul Scruggs and Keon Richardson do so much more than ______ trash. “They bring incredible energy to the ______ neighborhood,” Jennifer said. “In a word, they spread ______.”

What is ______ about the two men is the positive energy that they bring with them. They always have ______ on their faces and never ______ a chance to say hello and ______ someone’s day. They also go out of their way to help others and ______ nothing in return. One day, Saul spent 45 minutes helping a neighbor dig through her trash to ______ her lost wedding ring. He also waited for over an hour with another ______ who was having heart problems and needed a(n)______.

Jennifer has had “meaningful discussions” with the amazing workers about their inspiring levels of happiness and often shares their ______ with her students. “Every day we are ______ by heroes who bring us inspiration but too often we are unable to ______ these great people. I want Saul and Keon to know that we are thankful.”