I was asked in an e­mail about learning idioms in a foreign language. Maybe I am different from most people，but I do not bother with them. To me they are kind of dessert of language learning. They come at the end of a meal. Once you have filled up with the key words and phrases that are used in a variety of situations，then you can add a few idioms. And by that time, you will be able to pick them up naturally anyway.

    I find that many learners have trouble with idioms，as if repeating some very colloquial expressions is going to upgrade how they sound in a language. In fact, it is the opposite. Idioms are difficult to use correctly.

    Yes，occasionally you hear idioms and do not understand. But，in my experience，there are always situations where you do not understand. It is best to focus on the most important words，what they mean and how they are used. Certainly，it is best for a non­native speaker to stick to standard speech.

    Some teachers even try to teach the “real language”．Then you hear non­native speakers saying things like “I goanna”, “You wane” etc.

    You will learn all the idioms you need just by exposing yourself to the language. In general，you can save any phrase that you find interesting，and if that includes idioms，go to it. But I would not make any special effort to go after idioms. I，in fact，avoid them. If I come across something in Russian that strikes me as a particularly idiomatic use of words，I just leave it aside; do not even bother trying to learn it. If it keeps on appearing，then I will learn it.

    Opened in 1847, the London Zoo is the world's oldest scientific zoo. Today it houses over 760 different species of animal and is the only zoo in London where you can experience big animals.

    Explore the “Into Africa” exhibit (展览) where you can come face to face with some of Africa's most unusual animals including hunting dogs, or try “Meet The Monkeys” an exciting walk-through experience. Other top exhibits include the Butterfly Paradise, where you can enjoy many species of butterfly as they fly around you.

    Make sure you don't miss feeding time at the Penguin Beach and find out more about these popular creatures from the zoo's experienced keepers. Penguin Beach, with a very large pool and underwater viewing areas, allows visitors to be close to the penguins like never before.

    Built in 2013, Tiger Territory is a great experience taking visitors deep into the world of these wonderful creatures.

    Rainforest Life is London's only living rainforest, where visitors can meet a variety of beautiful rainforest species including. In the all-new “Night Life” area you will discover the bats, and rats.

    With over 12,000 animals to see and incredible animal displays taking place throughout the day (including feeds and keeper talks), no visitor leaves disappointed. Learn more about London Zoo in our Interview with a Zoo Keeper on our London Pass Blog.

    You can visit the London Zoo for free with a London Pass—a fantastic saving of £23 for adults and over £16 for children. Children aged 3-4 will be charged on entrance fee for London Zoo.

    It is sad to learn that fewer of us now own pets. According to Mintel, just 56% of UK households（家庭）today include a pet, compared with 63% in 2012. It is down to our smaller homes. The housing crisis（危机）is taking away one of our life's joys: pets.

    Pets can help us get over serious illness. Pets lessen our anxiety. Pets can be a godsend for people experiencing various forms of mental disorders. As if all that were not enough, pets also help their owners get a date because of complex psychological reasons.

    There do, of course, remain oppositions to the very idea of pets. The charity PET A puts it thus: “This selfish desire to own animals and receive love from them causes immeasurable suffering, which results from selling or giving them away casually, and taking away their opportunity to enjoy their natural behavior.” This is undoubtedly true in some situations. But seen from a different point of view, there's something quite lovely about the story of people and their companion animals.

    What was once a relationship based only on the animal's functional effects—its ability to kill pests（害虫）, guard houses, and the like—has developed into something much more about care and love.

    We share 84% of our DNA with dogs. We share 90% of our DNA with mice, for good ness sake. I have no idea how that works. But still pets remind（提醒）us we're part something bigger. Pets break down the barriers between us and the animal kingdom. We may teach pets to roll over, stand up, order takeaways and so on. But they teach us much more: that life is actually really quite short and so should be filled as much as possible with life-giving experiences.

    When asked about her childhood in the documentary Alive Inside, a 90-year-old woman with dementia(痴呆) replies, "I've forgotten so much." Filmmaker Michael Rossato-Bennett then plays music from her past for her. “That's Louis Armstrong,” she says. “He's singing When the Saints Go Marching In and it takes me back to my school days.” She then recalls exact details from her life.

Why does it happen? Music tends to accompany events that arouse emotions or otherwise make strong impressions on us — such as weddings and graduations. These kinds of experiences form strong memories, and the music and memories likely become intertwined(紧密相连) in our neural(神经的) networks, according to Julene Johnson, a professor at the University of California. Movements, such as dancing, also often pair with our experience of music, which can help form memories. Even many years later, hearing the music can bring back memories of these long-past events.

    As Alive Inside shows, music has this power even for many people with dementia. Researchers note that the brain areas that process and remember music are typically less damaged by dementia than other areas, and they think it may explain the phenomenon.

    They also pay attention to elderly people with dementia, especially those in nursing homes. "It's possible those long-term memories are still there," Johnson says, “but people just have a harder time accessing them because they're in a strange place and there are not a lot of circumstances in which someone could pull out those memories.”

    Johnson also notes that music is not universally useful for all people with dementia since there are some people with dementia whose brain area that recognizes music is damaged.

    Despite music's apparent benefits, few studies have explored its influence on memory recall in people with dementia. “It's really an untapped area,” Johnson says. Petr Janata is one researcher investigating the topic of music and memory. He says that scientists still do not have the answers for why and how music reawakens memories in people with dementia, but this phenomenon is real and it's just a matter of time before it's fully borne out by scientific research.

Given the fact that chemical pesticides and artificial fertilisers can fight crop diseases and increase production, they{#blank#}1{#/blank#}(be) in wide-spread use since the 1950s. When they were first introduced,many farmers considered them as a great way.However, with time {#blank#}2{#/blank#}(go) by, they have been proved harmful to the environment and people's health if{#blank#}3{#/blank#}(use) for a long time.{#blank#}4{#/blank#} (tackle) this problem, some farmers have switched to organic farming{#blank#}5{#/blank#}an alternative. And organic food has become{#blank#}6{#/blank#}favorite for many customers. Farmers who grow organic products rely on it that{#blank#}7{#/blank#}(nature) means could keep their soil fertile and free of disease. Different organic methods have come up,{#blank#}8{#/blank#} goal is to grow good food while avoiding damage to the environment or to people's health. However, organic farming cannot replace chemical farming{#blank#}9{#/blank#}(instant) for it's feeding a huge number of people worldwide now. There is still a long way to go before scientists find a suitable{#blank#}10{#/blank#}(solve) that can serve the high demand for food around the world while protecting the environment.

Finger painting is an art that most people have experienced in childhood. But there are still people who know little about this art form. Finger painting is a simple activity that involves dipping fingers in paints and then using fingers to create objects and shapes on a piece of paper. All you need is a table at elbow height, a few sheets of plain paper, and a few bottles of watercolor. 

When engaging kids in this activity, one should use non-toxic (无毒的) paints only. If not available in the market readily, non-toxic paints can be made at home easily. Preferably, the paints should also be eatable. Finger paints come in bright colors and can be purchased relatively inexpensively. Adults can save money by making their own finger paints using a mixture of cornstarch, food coloring and water.

It is a common fallacy that finger painting is for children alone, rather it's an activity that can be enjoyed by adults in equal measure. Adults can use rubber gloves while painting to avoid dirty marks of paints on their hands. When a group of people are gathered for an exercise of finger painting, it can be a great way of creating a bond between the group. Art and painting parties are a popular concept in the West. Organizations can also use finger painting as a team-building activity by making participants paint together on a large canvas (画布).

There's no limit to the expression of feelings in finger painting. All one needs to do is go all out and put all their feelings on a piece of paper by dipping their fingers in paints. While painting, one may unconsciously choose colors that reflect their emotions. For example, you may choose the color red to express your anger or green to express hope. At times you may be confused, and the painting will help you describe your confused state of mind. Once you get your emotions on paper, you are likely to feel relieved.

So what are you waiting for? Plan a finger-painting session soon, and experience the joy.