1 . The endangered pandas in the Qinling Mountains might face a new threat: the loss of their food, bamboo, which makes up 99% of their meals.

Adult pandas spend most part of the day eating bamboo and have to take in at least 40 pounds a day to stay healthy. However, a new study published in Nature Climate Change warned that they may soon find their food gone because most of the bamboo in the Qinling Mountains might disappear by the end of the century as a result of rising temperature worldwide.

A team made up of researchers from Michigan State University and the Chinese Academy of Sciences has studied the effects of climate change on the bamboo in the Qinling Mountains. They have found that bamboo is very sensitive to climate changes. “80% to 100% of the bamboo would be gone if the average temperature rises 3.5 degrees worldwide by the end of the century,” said Liu Jianguo, one of the report’s authors.

He added, “This is how much the temperature would rise by 2100 even if all countries will keep their promises in the Paris Agreement. But you know what is happening all around the world.”

In recent years, China has been trying its best to protect the endangered pandas by setting up more and bigger natural reserves.

“But it is far from enough and the endangered pandas need cooperation from the rest of the world, because their future is not just in the hands of the Chinese,” said Shirley Martin from the World Wildlife Fund but not a member of the team.

The Qinling Mountains, in the southwest of China, are home to about 260 pandas. That is about 13% of China’s wild panda population. In addition, about 375 are living in research centers and zoos in China.

4 . Garbage sorting (分类) has become a hot topic around China, especially after Shanghai began carrying out a regulation (规章) on July 1.

Beijing has been expected to do the same. At present the regulation gives garbage sorting responsibilities to government departments, property management groups and other organizations. It also gives rules for companies, explaining how they’re responsible for waste collection, transportation and treatment. Citizens are free of responsibilities for the moment.

The long-awaited revision will soon change the situation. “Taking out the trash without sorting it properly will be illegal,” said Sun Xinjun, director of the Beijing Commission of Urban Management. In Shanghai, violators (违背者) are now fined up to 200 yuan for trash-sorting violations. “The maximum fine in Beijing will not be less than that,” he said.

The Beijing city government first promoted garbage sorting in 2009. Authorities have since called on citizens to sort their household waste into four types—recyclable waste, kitchen trash, dangerous waste and others , and leave it in a colored dustbin or trash can. Blue-colored dustbins are for recyclable items, green for kitchen trash, red for dangerous materials and grey for other waste.

To promote the awareness of garbage sorting and expand the base of participants, authorities have employed workers to help citizens. With intelligent devices, those who throw in recyclable waste at given places will be rewarded with bonus points, which can be used to buy daily goods. At some communities, there are no color-coded dustbins. Instead, a scheduled garbage collection service is offered to help improve the environment. In other communities, workers offer a door-to-door service to collect recyclable or kitchen waste.

Beijing Environmental Sanitation Engineering Group has been promoting new garbage sorting facilities such as recycling cabinets and smart kitchen waste trash cans since 2016, Xinhua News Agency reported.

5 . My name is Miranda Gibson. I have been at the top of a tree for five months now. Some people might wonder________on earth I would choose to do that.

I have walked through this forest many times. On December 12, 2011, ________rolled into the forest and the destruction (摧毁) began. I couldn’t________the thought that these forests would be________ forever. So, on December 14, 2011, I packed up my life, ________of my job plans, and climbed 60 meters to the top of this tree. I have been here ever since.

Life in the tree top can be________at times. I have times when I feel frustrated (沮丧的) and wish I could________, to anywhere, just have a ________of scenery for a minute! There are times too, when I feel terribly________.I miss my friends and family.________these times, I find myself loving the________.

Living on the tree has been inspiring. I am willing to________ here for as long as it takes,________I honestly hope it won’t be too________before I can put my feet on the ground below and stand in a forest that will never be________.

7 . In my everyday life, I am on an ongoing journey to figure out different ways to reduce my carbon footprint on the planet. A carbon footprint is the measure of influence our activities have on the environment, in particular climate change. It is calculated by the amount of greenhouse gas we produce in our daily lives. Fortunately, nowadays it is much easier to make eco-friendly lifestyle choices than, let’s say, 20 years ago. But one question has been on my mind a lot lately: is it better to buy new eco-friendly products or used traditionally produced goods?

After doing some research, I have decided that some things are better new and others are better used. Let me try to explain.

A carbon footprint is made up of two parts, the primary footprint and the secondary footprint. The primary footprint is a measure of our direct emissions(排放)of carbon dioxide (CO2) from the burning of fuels, including household energy consumption and transportation. The secondary footprint is a measure of the indirect CO2 emissions from the whole life cycle of products we use-those related to their production and breakdown.

Based on this understanding, we have a good deal of control and responsibility over our carbon footprint. Things like dishes, clothes and furniture fall into the “secondary footprint” group, so less is more and we can focus on finding used goods to avoid the added production. However, for the car and the other appliances(设备) that we need we can go with new, energy-saving models. I heard somewhere that electronics and appliances give off 90% of their carbon footprint after they leave the factory. So it seems most reasonable to go for the energy-saving models. The main concern here is the amount of energy that goes into the making of new products and whether or not that extra carbon is worth the footprint the product will make once it gets to you.

8 . Natural disasters take many different forms and can happen without warning. Earthquakes, floods, vol-canoes, droughts, typhoons, and hurricanes are all natural disasters.

The earthquake of 26 December 2004 resulted in one of the worst natural disasters in living memory. It was a massive underwater quake and occurred in the Indian Ocean. This caused a huge tsunami (海啸) to cross the Indian Ocean. It destroyed coastlines and communities and brought death and destruction to many people. The survivors needed fresh water, food and shelter as well as medical help. People from all over the world gave money to help the people survive.

The surface of the Earth has not always looked as it does today; it is moving continuously (although very slowly) and has done so for billions of years. This is one cause of earthquakes, when one section of the Earth crashes with another. Scientists can predict where this might happen and the area between plates is called a fault line. However, earthquakes do not always happen on fault lines, which is why they are so dangerous and unpredictable.

All the disasters are very dangerous and continue to kill thousands of people each year,but they are nowhere near the most dangerous disaster to ever happen on earth. One type of event in the earth’s history has regularly killed millions of beings: asteroid (小行星) impacts (撞击). About once every million years the Earth is hit by a piece of rock and ice from space large enough to cause massive destruction (including earthquakes, volcanoes and ice ages) and sometimes to kill entire species. Sixty-five million years ago more than half the earth’s species were killed by such a disaster,including all the dinosaurs (恐龙). Disasters on the Earth may seem dangerous, but the biggest threat to humans is likely to come from space.

10 . Universities are doing everything they can to become a green campus. But there are also items students can do to make your campus more eco-friendly.

Recycle everything, especially paper!

There is a large amount of paper a college student goes through every term.     1     We know that these things can’t be avoided, but the way you handle the use of all the paper can really help create a better green campus.

Buy green.

    2     Paper, cleaning products and water are products that can be bought as recycled goods. They’re slightly more expensive than the normal products, but they’re worth buying to make a green campus.

Walk and bike to school.

Most campuses, especially those that are trying to become a more eco-friendly campus,have pretty good public transit (公共交通系统).     3     Walking or biking will help make your campus a green university.

    4    

A water bottle can be refilled at any water fountain and can easily be drunk in class or while riding a bike. This will protect the environment by decreasing the amount of plastic waste on your campus.

Buy used clothing.

It is usually thought of as something to do to save money.     5     Recycling clothes minimizes the amount of resources to make clothing and puts a dent in the problem of worldwide sweatshops.