Lake Victoria is the largest lake in Africa. It is also the second largest lake in the world. It is an important lake because it is one of the sources(源头) for the longest river in the world, the Nile River. Lake Victoria provides a source of water, food, and power(电力) for several African countries. Lake Victoria is a big part of African life.
   Unfortunately, Lake Victoria has a problem. It is shrinking. There are several power stations at Lake Victoria in Uganda. These are on the Nile River, and besides producing power, they keep the water of the lake at a certain level. For the past forty years, that level has been 11.9 meters. Over the last several years, the water level has dropped by about 2.5 meters. There seem to be several reasons for this drop.
   One possible reason is drought(干旱). Drought has been very bad in the area since 2000. Lake Victoria gets all of its water from rain, so the drought means less water in the lake.
   However, some environmentalists believe that the real problem is the power plants(工厂) on Lake Victoria. Uganda depends on those power plants for most of its power, and they made the power plants larger in 2000. Many people believe the power plants have been taking too much water off Lake Victoria. As a result, they have been asked to use less water until Lake Victoria goes back to its old level.
   Whether the low water level is caused by drought or power plants, the result is the same. This is already a poor area of Africa, where many people live a really hard life. People, animals and plants around Lake Victoria will suffer even more from low water levels on the lake. Many people need Lake Victoria for fishing or growing food. Fish need the water to live, and animals need it for water. Plants around the lake will die without the water, and then more animals and people will suffer. Unless the lake fills soon, many people will suffer and die.

    Films provide more than just entertainment．Watching foreign language films is a way to develop language skills．While watching a film，you are immersed（沉浸）in the language and can pick up new expressions that you might not find in a textbook．Some difficulties can arise when watching foreign language films-for example，unfamiliar colloquial language or strong regional accents．With this in mind，here are my tips to help you make progress in English learning while enjoying the films．

    Choose a film type that you enjoy.

    If you like action films，watch an action film-for example Indiana Jones．If you prefer comedies，watch a comedy-anything with Hugh Grant in always provides a laugh！It's simple enough，but if you choose something you enjoy watching in your native language，you're more likely to enjoy it in English．

    Choose something that you are familiar with.

    It's best to start off with something simple because in this way you have a higher chance of understanding the film．Disney films such as The Lion King，or the more recently released Tangled，are classic examples．Other cartoons such as Rango and The Lego Movie are also worth a watch．

    If you need to，use subtitles（字幕）．

    Subtitles are very helpful for beginners．using subtitles in your own language is the easiest choice，but for more advanced learners why not consider using English subtitles？This way，you can match the written subtitles to the words spoken on .screen．It helps you to develop your language further.

    I hope you find these tips useful-if you want to recommend a film to other users，feel free to use the comments section！

    Many people drive their cars to school or work now. So there are lots of cars on the streets. Sometimes, it's not easy for you to get to school or work on time(准时). Then you want to take a plane to school or work. Can your dream come true? Yes!

Four people in Germany(德国) make a new plane—Lilium Jet. It doesn't look like a plane but an egg. Many people think it looks funny. The nice "egg" can take two people and "run" about three hundred kilometers an hour.

    The Lilium Jet is not very big. So it doesn't need an airport(机场). A small place is OK.

    Some people also call the Lilium Jet "a flying car". It's not difficult for you to learn to drive it. You can drive it like driving a car.

    Maybe you can buy one in 2018 if you like it. I'm sure your trip to school or work will be great.