【推荐1】①Winter comes after autumn and before spring. It brings snow and ice. Here are different ways to know it’s winter:

②The days are short and the nights are cold. The winter solstice (冬至) is the start of the coldest days in winter, and it is the shortest day of the year!

③The sun isn’t warm in winter. There is lots of snow in winter. People and animals don’t like to go outside.

④In winter, when you look outside, you’ll see a lot of brown things, not the green ones. There are no leaves on most of the trees.

⑤Some animals hibernate. They sleep in winter. But others keep food in autumn to eat in winter, because it is difficult to find food. Many birds fly from the north (北方) to warm places for the winter. They will come back when spring comes.

A．

B．

C．

D．

【推荐2】Autumn is a good time for children to go outside and see the changing colors of nature. The wind is cool, the days are short and the leaves are changing colors. Autumn is a great season for kids to play outside. What outdoor activities do children like?

In China, students often have an autumn school picnic. Usually, they will go to an amusement park or to places that are close to nature.

What kinds of autumn activities are there for children in other countries?

Japanese students often go hiking. It is a perfect way to get exercise while enjoying the outdoors. Mountain climbing in such nice weather is also a good choice.

Children in the US like to go for bike rides in autumn. Take a mountain bike ride and you can explore new trails (小路). Playing in a leaf pile (落叶层) is popular, too. Kids jump into the leaf pile to see the colorful leaves fly all around. They also make leaf beds—all a lot of fun.

In the UK, school kids like to camp outside with their parents. They make snacks over the fire and tell ghost stories.

【推荐3】There are four seasons（季节）in a year. They are spring, summer, autumn and winter.

Spring is a beautiful season. It’s from March to May. In spring, the trees turn green and the flowerscome out.Everything looks new.

Summer is a happy season. It’s from June to August. In summer, we can swim and eat ice cream.

Autumn is a colourful season. It lasts（持续）from September to November. In autumn, the leaves on the trees turn yellow. Sometimes they are yellow and red. The colours are beautiful.

Winter is a cold season. It’s from December to February. In winter, it snows in most places of China. Snow is white, and everything looks white. The children like playing with snow.

【推荐1】Is there a way to quickly recall (回忆) information just before taking an exam? Walking backward might be a solution. Scientists from the University of Roehampton in the UK said this activity can help people improve their short-term memory.

Researchers asked 114 volunteers to watch a video. After watching the video, they were divided into three groups .One group was told to walk 10 meters forward.The second group walked 10 meters backward. The third group stood in one place.All three groups were then asked 20 questions about what they saw in the video.

The scientists found that the backward-walking group got two more answers correct on average (平均) than the other two groups.

This suggests that the link between the concepts (概念) of time and space is important in terms of (从……方面) how our minds form memories. When you walk backward, you see things from a different angle (角度). This difference helps people recall things that happened in the past.

And walking backward is not just good for our brains. It is also good for the rest of our bodies. Compared to walking forward, walking backward is more challenging. This can help us improve our fitness, according to New Scientist. Walking backward uses more energy in a short time and burns more calories (卡路里).

In addition, walking backwards is less stressful for our knees. It could be helpful for people who often have pain in their knees, according to researchers from the University of Oregon in the US. Walking backward also keeps our spines strong, which can help to ease pain in the lower back. This might be why many old people like walking backwards.

【推荐2】An exhibition（展览）about the Grand Canal（大运河）ended at the National Museum of China in Beijing on March 1st.

The Grand Canal is more than 2,500 years old. It is made up of the Beijing-Hangzhou Grand Canal, the Sui and Tang Grand Canal, and the Zhedong Canal. At nearly 3,200 kilometers long, it is the world’s longest man-made waterway. It has influenced the development of China for hundreds of years.

Before it was built, people in ancient China used horses or simply traveled on foot to trade goods（货物）. It was impossible to carry large- sized goods. After the Grand Canal connected the north and the south, business and cultural exchanges were able to develop further.

In fact, the Grand Canal played an important role in the building of the Palace Museum. Materials from different parts of the country were sent to Beijing through the canal, including bricks fired in Shandong and Jiangsu and wood cut in Hunan. People even owe the beginning of Beijing duck to the canal. White lake ducks in the south were shipped to Beijing. They were then kept to make Beijing duck. People from all walks of life preferred to get together along the canal. They shared their experiences, traditions and culture with others.

When you hear the word “shape-shifting (变形的)”, you may think of sci-fi movies, and not the climate (气候). But that’s what animals are doing to deal with climate change.

A new study shows that some animals are gradually growing larger beaks (喙) legs and ears. In this way, they can lose heat more easily to cool themselves down as the earth gets warmer.

“When we talk about climate change, we ask ‘Can humans overcome this?’ or ‘What technology can solve this?’. But we should know that animals also have to adapt to (适应) climate change,” said the study’s researcher, Sara Ryding, from Deakin University, Australia. If animals fail to control their body temperature, they can overheat and die.

In one example, the beaks of some Australian parrot species (鹦鹉物种) have grown 4 to 10 percent larger since 1871. The study says it is closely related (相关的) to rising summer temperatures over the years. Similar examples include wood mice. They have longer tails. Masked shrews (中鼩鼱) are getting longer tails and legs, and bats in warm climates have bigger wings.

Although the changes are still small, Ryding said they could be clearer as the days become hotter. “Body parts like ears are predicted (预测) to be bigger, so we might end up with a live-action Dumbo (a big eared elephant from a Disney cartoon) in the near future,” Ryding said.

Although animals are changing their body shapes, scientists warn that it doesn’t mean everything is fine. It just means they are trying hard to live. Not all animals will succeed. “The climate change that we have created is bringing a whole lot of pressure to bear on them, and while some animals will adapt, others will not,” said Ryding.

【推荐2】In China, safety education is becoming more and more important now. The last Monday in March is for students to learn it at school. It helps students learn more about what they should do to keep themselves safe. What are the accidents at school? Take a look.

A stampede always happens in crowded places. When students around you begin to push, just stand there and try to hold onto something. If you fall down in the crowd, move to one side and protect（保护）your head with your hands around.

When earthquakes happen, you can get under a desk quickly and hold on. It'll protect you from falling things. If you are outdoors, find a place away from buildings, trees, and power lines.

When there's a fire, leave the classroom quickly. It's better to put something wet over your mouth and nose. In this way, you won't breathe in smoke. Many people die in a fire, not because of the fire but smoke. It makes them cough and they can't breathe. That's very dangerous! So when you want to get out, you should make yourself close to the floor. Then you can breathe some fresh air.

Stampedes（踩踏）, earthquakes and fires are the main accidents at school. And next time, if something terrible happens, we are sure you can protect yourself successfully as the above says.

A．

B．

C．

D．