Idioms(成语) are phrases and sentences that do not mean exactly what they say. Even if you know the meaning of each word you see or hear, you may not understand the idiom because you don't understand the culture behind it.

    For example, if an American boy asks his mother what's for dinner tomorrow, she may say “I'll play it by ear”, that means she doesn't have plans for dinner and she will decide later. “Play by ear” used to mean playing music using the sheet music(活页乐谱), but now people often use it when they're not talking about music.

    There're many idioms in English. If you learn to use them, your English will be more vivid and colorful. English idioms are more common in spoken English. They can be difficult to remember sometimes. Next time when you hear somebody saying to you, “Give me a hand”, you don't necessarily reach out your hand to him/her, but you do need to be helpful. And when the situation is out of hand, you usually can do very little to manage all that. What about a green hand? It's not about the color of your hand! You're a green hand when you are very new at your work and don't have much experience. If you and your partner always work together hand in glove, you two certainly work together very well.

    Can you guess the meanings of some common English idioms to do with parts of your body?

    China is a great country with the largest population in the world．In order to solve the population problem，our government carried out one﹣child policy （政策）before．When it is carried out for some time，many people not only see its advantages but also disadvantages．

    From 2016，two﹣child policy is put into effect．In my opinion，two﹣child policy is good．First of all，two﹣child policy is the gift for some only child．For some families，maybe the parents are only child and they also can have only child．Besides the loneliness of their child，when their child grows up and they grow older，their child marry an only child girl，the burden（负担）on their child and his wife is too heavy．Their child and his wife have to take care of two couples．Usually，a young couple looking after an old couple is a little difficult．But if their parents have two children，they can share the burden of taking care of their parents．It would be much better．Secondly，two﹣child policy can guarantee （保证） the number of Chinese population．

    All in all，one﹣child policy has been out of date．And two﹣child policy is needed and necessary．It can solve the problems of nowadays （现在）and the future．

    People use their mouths for many things. In the English language, there are many expressions using the word "mouth". But some of them are not so nice.

    Sometimes, people say something to a friend or a family member. Later they regret because it hurts that person's feelings. Or they tell the person something they didn't mean to tell. The speaker might say: "I really put my foot in my mouth this time."

    Sometimes when one person is speaking, he says the same thing that his friend is going to say. When this happens, the friend might say: "You took the words right out of my mouth!" Sometimes a person has a bad or sad experience with another person. He might say that experience "left a bad taste in my mouth." Or the person possibly has a very frightening(可怕的）experience, like having an angry dog running after him. He might say: "I had my heart in my mouth."

    Some people have lots of money because they were born into a very rich family. You might say the person "was born with a silver spoon (银勺) in his mouth". He is the opposite of a person living from "hand to mouth". This person is very poor and only has enough money for the most important things in life, like food. 

    Each year on Feb 21, UNESCO (联合国教科文组织) holds an International Mother Language Day (IMLD). The event is to help people to pay attention to the disappearance of the world's languages; many of them are disappearing each year. UNESCO sees this as a terrible fact.

    What happens when a language dies out? Something great is lost-not just sounds and marks but the way that people understand the world and communicate with each other. We keep different cultures and traditions through languages. Kill a language and all these are killed too.

    Through IMLD, more and more people come to realize he terrible situation and try to stop it.

    Google's 2018 Endangered (濒临灭绝的) Languages Project is a good example. Many speakers and protectors of endangered languages upload (上传) texts, audios and videos to the project website. They want to introduce the way that people communicate and express themselves around the world.

    The Myaamia Project is the same kind of effort to revive the language spoken by the Miami tribes (部落) of the United States. Project members work to encourage people to study and communicate with this language, which died out in the 1960s.

    These activities give life to those endangered languages. People who work to keep Languages alive are not limited to the past. Many young people design apps and use social media to support their activities. They "spread the word" to save the world.

    So, while the problem of disappearing languages remains a very serious one, there is hope. We all have a special feeling of our mother language. This is why we should remember the wise words of late president of South Africa, Nelson Mandela: "If you talk to a man in a language he understands, that goes to his head. If you talk to a man in his own language，that goes to his heart."

2019 Beijing International Horticultural Expo

    Time: April 29~October 7

    Theme: Live Green, Live Better.

    Many flowers and herbs from both home and abroad are on display at the expo.  There are also lots of wildflowers.

    Around 110 countries and international organizations take part in the expo.

    The expo has 4l outdoor display centers and about 2, 500 activities.

注: International Horticultural Expo世界园艺博览会