【推荐1】Thanksgiving is always on a Thursday. The day after it is famous as Black Friday in America. It is the start of the busiest shopping day of the year in the US since（自从） 2005.

Most stores organize big sales on Black Friday. They open their doors early in the morning. They try to make people visit their stores with big sales.     1     . Stores may even lose money on these items. They hope that the shoppers will buy gifts for other people while they are in the store.

Black Friday is a great time to go shopping. However, there are problems.     2     . Each store may only have a few. These items are in great need, so people may wait three or four hours before a store opens. They may be hoping to get a good price on a TV or a computer, but not everybody can get one. Some people leave, tired and sad.

Some Black Friday events are dangerous. There were shoppers fighting over toys.     3     . But most of them were peaceful and fun. Still, if you plan to go, you will expect large crowds and a little pushing（推挤）.

So where does the name Black Friday come from? It was first used in Philadelphia in the 1950s. The police called it Black Friday because of the heavy traffic it caused（它造成的交通拥挤）.     4     . It didn’t last（持续）long. People around the country went on to call it Black Friday.

Nowadays, people all over the country take part in Black Friday events.     5     . Stores have had Black Friday events in the UK, Australia and Brazil since 2012. I guess people everywhere like to buy things on sale.

【推荐2】All living things on the earth need other living things to live. Nothing lives alone. Most animals must live in a group, and even a plant grows close together with others of the same kind. Sometimes one living thing kills another, one eats and the other is eaten. Each kind of life eats another kind of life in order to live, and together they form a food chain (事物链). Some food chains are simple, while others are not. But all food chains begin with the sun, and all food chains become broken up if one of the links (连环) disappears (消失).

All life needs sunlight to live on. But only plants can use sunlight directly. Plants are “factories”. They make food from sunlight, water and things in the soil and air.

Plants feed all other living things. Animals can only use the sun’s energy (能量) after it has been changed into food by plants. Some animals feed directly on plants, others eat smaller animals. Meat-eating animals are only eating plants indirectly.

What about human beings? We are members of many food chains. We eat wheat, rice, vegetables, and fruits and so on. We also eat meat and drink milk. But men often break up the food chains. They kill wild animals. They also make rivers, lakes and seas dirty. When these rivers, lakes, and seas are polluted, the fish in them can not be eaten. If men eat the fish, they will get strange diseases. Each form of life is linked to all others. Breaking the links puts all life in danger

【推荐3】Why are your study habits different from those of your friends? Why do you seem to learn faster in some classes while more slowly in others? One reason you may not know is that people have different learning types. Scientists say there are three different learning types: visual（视觉型）, auditory（听觉型）, and kinesthetic（动觉型）.

Visual learners learn best by seeing. If you seem to easily remember information from pictures, graphs（图表）, and videos, if you find that works better for you.

Auditory learners learn best by hearing. If you seem to easily remember things by hearing them, then you are probably an auditory learner. You must listen carefully while the teacher is speaking because it’s the easiest way for you to learn. Sometimes you may find that taking notes stops you from listening carefully. After class, you can write down what you remember or borrow your friend’s notes to copy.

Kinesthetic learners learn best by doing. If you seem to learn best by working with your hands, you are probably a kinesthetic learner. Taking notes by writing can make you pay close attention to information as you receive it. Of course, you can learn best by making full use of labs or other class activities.

Hope you learn better by knowing what your personal learning type is.

【推荐1】

Returning home is usually happy and exciting. Is it the same for astronauts (宇航员) returning from space?

On June 17, the Shenzhou XII manned (载人的) spacecraft (飞船) went into space. It took three Chinese astronauts Nie Haisheng, Liu Boming and Tang Hongbo to China’s Tiangong space station. On Sept 17, the astronauts came back to the earth in a return capsule (舱).

The trip home wasn’t easy. Let’s see how it went.

“Real gold fears no fire”

It was a hot journey! When the spacecraft entered the earth’s atmosphere (大气层), its surface temperature rose to more than 2,000 degrees! This is because the spacecraft rubbed (摩擦) against the air. How could the astronauts stay safe? A special material (材料) is used to stop the heat from getting inside. “Real gold fears no fire” Nie joked.

Landing

When the spacecraft was about 10 kilometers above the ground, it prepared to land. It moved at 200 meters per second. That’s twice the speed of high-speed trains! It was too fast to directly land.

Caring for their health

On the way back to the earth, the astronauts’ seats faced backward. Instead of their faces, their backs faced the same direction as the spacecraft. This way, their backs, thighs (大腿) and waists could hold more pressure (压力). It’s better for their health.

The astronauts sat in wheelchairs (轮椅) after landing. In fact, space life had a big influence on their muscles (肌肉) and bones. They must get used to the gravity (重力) of the earth. If they walk too soon, it might be bad for their bodies.