CCTV reported that every year Chinese people throw away a lot of food which can feed 200 million people for a year.

      Do we have too much food? Of course not. According to the UN World Food Programme, there were 900million hungry people all over the world in 2013. About six million children die of hunger every year.

     So think about it. We should say no to people who waste food every day. An old saying goes, “Every grain on the plate comes from hard work.” It tells us everybody must save food.

      Luckily, a number of people have realized the importance of saving food. Li Hong, a waitress in a restaurant in Jiangsu, once lost her job because she took some leftover(剩余的) food home for her son. But many people were by her side and criticized (批评) the waste of food.

      What should we do in our daily life to stop wasting food? We can do many things to prevent it from happening. Here are some tips:

     Don't order too much food in a restaurant. Only order as much as you can eat. If you can't eat all the food you order, take the rest of it home.

      Don't be too picky(挑剔的) about food. Some food may not be tasty, but put body need it.

Don't keep too much food at home, especially for fruit and vegetables.

    With their long tusks (象牙), elephants look strong. However, it is this feature that makes the animal endangered. Many of them are killed for their tusks. People make elephant tusks into crafts (工艺品) and jewelry and sell them to rich people.
    But can these priceless body parts grow back? The answer is no, Live Science said. The elephants' tusks are actually part of their teeth. Nearly all African elephants and most male Asian elephants have these long teeth. About one-third of the tusk is in the animal's skull (头骨). The tusk has a nerve (神经) running down its center. This makes it similar to your teeth. Once you lose a tooth, you will never grow a new one.
    Elephants use their tusks to protect themselves, lift things, dig water and gather food. But losing the tusk will not kill them. The way in which they lose the tusk is what matters. Usually, people get tusks by culling (限量捕杀), which means killing old and weak elephants. They also take tusks from the elephants that have died naturally.

    However, these sources aren't enough to keep up with the demand for ivory. Therefore, some poachers (偷猎者) kill healthy elephants and cut their faces open to remove the tusks. About 27,000 elephants are killed by poachers each year, according to National Geographic.
    As a result of poaching, some African elephants gradually evolved (进化) without tusks, which has allowed them to survive. In Mozambique, about 90 percent of African elephants were killed for their tusks and meat from 1975 to 1992, National Geographic reported.
    Scientists found that about a third of younger females—the generation born after 1992—never developed tusks.

    For many smart phone users, especially young people, scanning QR Codes(二维码)has become a new and convenient life style these days. In fact, the QR Code was created in Japan in 1994, but until 11 years later, it was first used in China. It soon became popular around the country. The QR Code is much-loved because it provides a way to get to website more quickly. By scanning QR Codes, people can do lots of things, such as adding new friends, getting information, downloading Apps, shopping and so on. As for the shopping websites, there are usually more sales, including coupons(优惠券)for the phone users. The QR code is so common that people can scan them everywhere.

    We live on the earth. We use the sea around us. What do we take from the ocean? And what do we give to it?

    We take fishes from the ocean—millions of kilograms of fish, every year, to feed millions of people. {#blank#}1{#/blank#}We take minerals (矿物) from the ocean. We can get salt by evaporating (蒸发) seawater. {#blank#}2{#/blank#}such as gold. {#blank#}3{#/blank#}Seaweed (海草) becomes food of many kinds—even candy and ice cream—as well as medicine. Believe it or not, fresh water is another gift from the sea. We can't drink ocean water. {#blank#}4{#/blank#}But ocean water becomes fresh water when the salts are removed. In the future, we will find ourselves depending more and more on fresh water from the sea.

    The sea gives us food, fertilizer, minerals, water and other gifts. What do we give the sea? We pollute the ocean all the time. {#blank#}5{#/blank#}Throwing waste into the ocean is killing off sea life. Yet as the world population grows, we may need the sea and its gifts more than ever.

    We are finally learning that if we destroy our sea, we might also destroy ourselves. Hopefully, it is not too late.