The world uses plenty of water a day. Drinking water is a human right and everyone should have their share. However, more than 700 million people around the world have trouble getting clean,     1     (安全的) water.

Treating waste water is a good way to     2     (提供) fresh water for us. And it also helps the environment by keeping     3     (废物) out of rivers and oceans. 80% of waste water around the world is not treated at all, and it is running into oceans. But now we have got the technology to treat and     4     (再利用) the waste water. It can help us save much water.

While 75% of our planet is     5     (覆盖) with water, only about 2% is fresh water-that comes from rivers, lakes, ice and snow. The rest, 98% of the water, is in seas and oceans. It is too salty to drink. Then desalination (海水淡化) businesses come in. More than 19,000     6     (工厂) have been built around the world, mostly in coastal countries. Every day, they     7     (加工) more than 92 million tons of water. But the technology they use requires a lot of     8     (能源).

Scientists are working to create technology that     9     (花费) humans less money and works better. They want to     10     (生产) 20 times more clean water and make sure everyone has enough water. But for now, the world still faces each day with not having enough water for everyone.

【推荐2】“When it comes to Earth, there’s no time to waste,” the Earth Day Network says. And that is true.     1     (protect) our environment is very important. World Earth Day was created in 1970 to raise people’s e    2       awareness.    3       April 22, people around the world celebrate Earth Day.

Every year there is a special theme. The theme was “Trees for Earth” in 2016. Their goal is to     4     7.8 billion trees by 2020.

That’s a big goal, and you might wonder    5       trees are so important. Well for one, they can help stop climate change. Carbon dioxide (二氧化碳) is a chemical in our atmosphere, but humans make too much of it. Each person makes about 2.3 tons a year, which is b    6     for the environment.

Well guess what! Trees take in carbon dioxide and improve air quality. Planting new trees is important because people cut down countless t    7    .

According to Time, the total number of trees in the world has been almost cut in half since human civilization (文明)     8       (begin). So we need to plant more to replenish (补充) the ones we’ve lost. One tree can take in 48 pounds (21.8kg) of carbon dioxide per year. And it’s still one of the    9       (cheap) and best ways to get rid of carbon dioxide.

But don’t forget that you can also help the environment by cutting down on how much energy or w    10     you use every day. Every little bit helps!

【推荐1】At the Chengdu Research Base, Lin Wei and the other panda keepers are making a     1     (prepare) for the baby panda’s breakfast. At 9:00 a.m., most of the babies are already     2     (wake) and hungry. When the babies see the keepers, they run over with     3     (excite) and some of them even walk     4     their friends and fall over. They are so cute and lovely. Many people around the world love these black and white animals. Pandas have become so popular that they are now a     5     (象征) of China.

Scientists say adult pandas spend more than 12 hours a day     6     (eat) about 10 kilos of bamboo. However, as the forests get smaller and other human     7     (activity) cause more problems, pandas cannot find enough to eat and they are having fewer babies. There are now fewer than 2,000 pandas living in the forests.

An education program in Chengdu     8     (teach) children in cities about pandas and other endangered animals. They tell children about the i    9     of saving these animals. And the Chinese     10     (政府) is also planting more bamboo trees so there will be more forests for pandas to live in.

【推荐2】Many have heard of shark in soup. This famous and expensive dish is     1     (especial) popular in southern China.     2     (but) do you realize that you’ re killing a whole shark each time you enjoy a bowl of shark fin soup?

When people catch sharks, they cut off their fins and throw the shark back into the ocean. This is not only cruel, but also     3     (harm) to the environment. Without a fin, a shark     4     (can) swim anymore and slowly dies. Sharks are at the top of the food chain in the     5    (ocean) ecosystem. If their numbers drop too low, it     6     (bring) danger to all ocean life. Many believe that sharks can never be     7     (dangerous) because they are the strongest in their food chain. But in fact, around seventy     8     (million) sharks are caught and traded in this industry every year. The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years.

Environmental protection groups around the world, such as WildAid and the WWF, are teaching the public about “finning”. They have even asked governments     9     (develop) laws to stop the sale of shark fins. So far, no scientific studies have shown that shark fins are good for health, so why eat     10     (they)? Help save the sharks!

Save the Sharks (鲨鱼)!

Many have heard of shark fin (鱼翅) soup. But do you r    1     that you’re killing a whole shark each time you enjoy a bowl of shark fin soup?

When people catch sharks, t    2     cut off their fins and throw the sharks back into the sea. This is not o    3     cruel (残酷的), but also harmful to the environment. Without a fin, a shark can no l    4     swim and slowly dies. Sharks are at the t    5     of the food chain in the sea’s ecosystem. If their numbers drop too low, it will bring danger to all sea life. Many believe that sharks can never be endangered b    6     they are the strongest in their food chain. But in fact, around 70 m    7     sharks are caught and traded (交易) in this industry (工业) every year. The numbers of some kinds of sharks harks have fallen by over 90 percent in the last 20 or 30 years.

Environmental protection groups around the world, s    8     as WildAid and the WWF, are teaching the public about “finning”. They have even asked governments to develop laws (法律) to s    9     the sale of shark fins. So far, no scientific studies have shown that shark fins are good for health, so why eat them? Help s    10     the sharks.