Using too much water or throwing rubbish into our rivers are clear ways that humans can put our water supply in danger , but we also affect our water supply in less obvious ways. You may wonder how paving(铺砌) a road can lead to less useable fresh water. A major part of the water we use every day is groundwater. Groundwater does not come from lakes or rivers. It comes from underground. The more roads and parking lots we pave ，the less water can flow into the ground to become groundwater.

    Human activity is not responsible for all water shortages(短缺). Drier climates are of course more likely to have droughts(干旱) than areas with more rainfall, but in any case, good management can help to make sure there is enough water to meet our basic needs.

    Thinking about the way we use water every day can make a big difference, too In the United States , a family of four can use 1.5 tons of water a day! This shows how much we depend on water to live, but there's a lot we can do to lower the number.

    You can take steps to save water in your home. To start with use the same glass for your drinking water all day. Wash it only once a day. Run your dishwasher (洗碗机)only when it is full 。Help your parents fix any leaks in your home. You can even help to keep our water supply clean by recycling batteries instead of throwing them away.

    With the rapid development of China's economy, more and more foreigners begin to learn Chinese because they are beginning to realize the importance and growing influence of China. Pupils in Warwickshire will soon be learning Mandarin after new links were forged(建立联系) with a region in China.

    Head teachers from the county spent a week in Shenzhen in South-east China, making links with schools and touring different education establishments.

    Schools that took part are now looking to introduce Mandarin lessons. Pupils from schools in Warwickshire and Shenzhen are starting to write and e-mail each other and plans are being made to share lessons over the Internet.

The trip was arranged by Warwickshire County Council and funded by the British Council as the first stage of development of a range of ties with the economically booming city.

    International development officer Judith Young said: “We are entering an exciting period of school relation between Warwickshire and Shenzhen. There is a real appetite for sharing ideas among the Chinese. We were able to see the differences and similarities between the education systems and there are many areas in which our schools, teachers and pupils will be able to benefit from a different cultural perspective(观点) and links with a country that is becoming very important on the world stage.

    Throughout the high profile(引人注目) visit led by our county education officer, Eric Wood, our group was made to feel very welcome and attracted a great deal of interest. Our visit to a primary school was featured as the main news item on television that night. A mark of how highly the visit was valued is that plans are being made for a return visit to Warwickshire of civic leaders, senior education officials and school principals.”

    From American Express, wedding guests will, on average, spend $673 on each wedding they attend this year. It includes airfare （$225）, hotel （$170）, dining out （$116）and dressing up （$95）and the gift. If you have weddings to attend this year, here are some tips for you to avoid breaking the bank.

    ⒈Book flights in advance

    The moment you decide to attend a wedding is the time to check flight prices at the best time. Plane fares are higher in the summer, especially in July and August. Booking in advance will save you money, as will watch for sales on lower﹣cost carriers like JetBlue and Frontier. You can check Google Flights for a calendar of prices showing the cheapest days to fly from apps like Hopper to get real﹣time alerts when a fare is at its lowest price point.

    ⒉Don't blow your budget on the gift

    If you've got the money, an expensive gift is lovely. But there's no need to take out loans to prove your love for the happy couple. Skip an expensive necklace by giving （an appropriate amount of） cash instead. To save on the gift, consider making one： A photo album or scrapbook of memories with the bride and groom shows how much you care. You could also share the gift with other guest(s) or even make gifts with DIY ideas by yourself to save money.

    ⒊Use old dresses and suits

    You don't always have to be on a new dress for a wedding. While men have the option of repeating their suits, women are more likely to spend money on new clothes for the special occasion. But before you take out your wallet, consider reinventing something already in your closet. Belts, colorful scarves, shoes can bring life to any outfit.

    They're in restaurants, hotels and homes all over the world. The saltwater aquarium, with its colour fish, bring a piece of the wild into your living room.

    But do you really know where those saltwater fish come from? A full 97 percent, yes, almost all kinds of saltwater fish can't be bred in captivity (人工养殖). They must instead be taken from the ocean. And how is that done?

    Most of the time, with sodium cyanide, it is a harmful chemical compound that many fish collectors in the Philippines, Sri Lanka, and Indonesia use to catch fish. They mix it with water and use it on the fish. Stunned, the fish can then be easily caught.

    What does cyanide do to the fish? There is a scientific study on cyanide's effects. When there is cyanide in water, fish lose their balance and have difficulty breathing. Some fish simply die then and there. Many, many more die on the way to captivity.

    Although cyanide fishing in the Philippines, Sir Lanka, and Indonesia is not allowed, it still happens too often. According to the World wildlife Fund, up to 90 percent of the saltwater fish that enter the US each year are caught this way. The Center for Biological Diversity is calling on the US government to avoid these imports.

    “Compared to many environmental problems now facing the world's oceans, this is one that can easily be solved,” said Nicholas Whipps of the Center. “Because the US is such a powerful market player in this industry, the responsibility to stop this practice falls largely on the United State' shoulders.”

    In the Philippines, private planes bring in cyanide to the fisherman and then take away the live fish. Live fish give the fisherman a better life than dead ones, so more and more fishermen have turned from supplying the fish-for-food trade to the fish-for-aquariums trade.

    The Center for Biological Diversity hopes the government will use the law to turn away cyanide-caught fish and persuade people to buy those only raised in captivity.

    Let's look at the movies we can't wait to watch in 2019

    Dumbo (March 29)

    Dumbo is a 1941 American film produced by Walt Disney Productions. The main character is an elephant who is nicknamed “Dumbo”. Dumbo is always laughed at for his big ears, and he is rejected by the other elephants. With no parent to care for him, he is alone. But in fact, he is capable of flying by using his ears as wings. A live-action adaptation of the film directed by Tim Burton is scheduled to be released on March 29, 2019.

    Shazam! (April 5)

    Shazam is an upcoming American superhero film based on the DC Comics character of the same name. Directed by David F. Sandberg, the film is set to star Asher Angel as Billy Batson, a teenage boy who can transform via the magic word “Shazam” into an adult superhero, played by Zachary Levi. It will be the first film version of the character since the 1941 series Adventures of Captain Marvel (the character's original name).

    Aladdin (May 24)

    Aladdin is a fictional character and the role of the film Aladdin (1992) based on Aladdin, a folk tale of Middle Eastern origin He is voiced by Scott Weinger, while his singing voice is provided by Brad Kane. Aladdin never received a formal education, and has only learned by living on the streets of Agrabah. He has to steal food in the local market in order to survive. Mena Massoud is set to play a live-action version of the character in a live action adaptation of the 1992 film.

    Godzilla, King of the Monsters (May 31)

    Godzilla, King of the Monsters is a 1956 Japanese-American science fiction film, co-directed by Terry O. Morse and Ishiro Honda. It is a heavily re-edited American adaptation. For this new version of Godzilla, some of the original Japanese dialogue was translated into English, and some of the political, social and anti-nuclear themes were removed completely.

    Teenagers who talk on the phone a lot and hold their cell phones up to their right ears score worse on one type of memory test. That's the finding of a new study. That memory damage might be one side-effect of the radiation that phones use to keep us connected while we're on the go.

    Nearly 700 Swiss teens took part in a test of figural memory. This type helps us recall abstract symbols and shapes, explains Milena Foerster. She's an epidemiologist(流行病学家). She worked on the study as part of a team while Foerster was at the Swiss Tropical and Public Health Institute in Basel, Switzerland. Teens participated memory tests twjce, one year apart. Each time, they had one minute to memorize 13 pairs of abstract shapes. Then they were shown one item from each pair and asked to match it with one of five choices.

    The study volunteers also took a test of verbal memory. That's the ability to remember words. The two memory tests are parts of an intelligence test.

    The researchers also surveyed the teens on how they use mobile phones. And they got call records from phone companies. The researchers used those records to estimate how long the teens were using their phones. This allowed the researchers to calculate how big a radiation exposure each person could have gotten while talking.

    All cell phones give off energy in the form of radio frequency electromagnetic fields, or RF-EMFs. Radio and TV broadcasts also use this type of energy. So do microwave ovens and some other gadgets(配件).

    "For a phone, that energy carries information, in the form of calls or texts between phones and cell phone towers. That radiation also can travel into people's bodies as they use their phones. And some of its energy can be absorbed by the body. So far, scientists have not shown that radiation from phones causes harm," says the Federal

    Communications Commission. Research is ongoing, this agency notes.