The Winter Olympics are also called The White Olympics. At this time, many colorful stamps are published to mark the great Games. The first stamps marking the opening came out on January 25th,1932 in the United States for the 3rd White Olympics. From then on, publishing stamps during the White Olympics became a rule. During the 4th Winter Olympics, a group of stamps were published in Germany in November 1936. The five rings of Olympics were drawn on the front of sportswear. It was the first time that the rings appeared on the stamps of the White Olympics.

In the 1950's, stamps of this kind became more colorful. When the White Olympics came, the host countries as well as the non-host(非主办方)countries published stamps to mark those Games. China also published four stamps in February 1980, when the Chinese sportsmen began to take part in the White Olympics.

    Japan is the only Asian country that has ever held the White Olympics. Altogether 14,500 million stamps were sold to raise money for this sports meeting.

    Different kinds of sports were drawn on these small stamps. People can enjoy the beauty of the wonderful movements of some sportsmen.

    A new study of 8,000 young people in the Journal of Health and Social Behavior shows that although love can make adults live healthily and happily, it is a bad thing for young people. Puppy love, (早恋) may bring stress for young people and can lead to depression. The study shows that girls become more depressed than boys, and younger girls are the worst of all.

    The possible reason for the connection between love and higher risk of depression for girls is “loss of self”. According to the study, even though boys would say “lose themselves in a romantic relationship”, this “loss of self” is much more likely to lead to depression when it happens to girls. Young girls who have romantic relationships usually like hiding their feelings and opinions. They won't tell that to their parents.

    Dr Marianm Kaufman, an expert on young people problems, says 15% to 20% young people will have depression during their growing. Trying romance often causes the depression. She advises kids not to jump into romance too early. During growing up, it is important for young people to build strong friendships and a strong sense of self. She also suggests the parents should encourage their kids to keep close to their friends, attend more interesting school activities and spend enough time with family.

    Parents should watch for signs of depression-eating or mood changes-and if they see signs from their daughters or sons, they need to give help. The good news is that the connection between romance and depression seems to become weak with age. Love will always make us feel young, but only maturity gives us a chance to avoid its bad side effects.

    A white elephant gift exchange is a popular holiday party game in, the United States. Generally, the party needs at least six participants, and' the larger the group: is, the more entertaining the game will be{#blank#}1{#/blank#}But it can result in heated competitions between players trying to get the gifts.

    {#blank#}2{#/blank#}Sometimes, the rule is that the item must be previously owned, which means that you can exchange an unwanted item or trinket(小装饰品) with your friends. But sometimes you can buy a new but inexpensive item just for the party.

    Every participant is expected to bring one wrapped(包装好的) gift. A white elephant gift is usually something useless or inconvenient{#blank#}3{#/blank#} Guests are asked to wrap them nicely and leave no identifying markings on the presents.

    To start the game, a participant must act as the first player to choose a gift; this can be decided randomly or by picking numbers out of a hat{#blank#}4{#/blank#}As for the next player? This person can either “steal” the first person's gift or choose an unwrapped item from the pile. Each gift can be stolen only three times before it is considered "dead".

    {#blank#}5{#/blank#}Any person that has to give up a gift can also pick a new gift or steal one from another person. Each turn is only allowed three swaps between the current player and the previous players. The game won't finish until all the presents are opened.

A. It all depends on how the game is organized.

B. This process is repeated until the game is over.

C. Don't forget that the game's purpose is to have fun.

D. The first player then opens the gift in front of everyone.

E. White elephant gift exchange can be run in different ways.

F. The goal of the party is usually entertainment rather than gain.

G. Trinkets, unidentifiable kitchen items and toys are typical “white elephants” .

    Corals (珊瑚) are often described as undersea forests, but they are declining far more quickly than the Amazon. The coral reefs (礁) are likely to be among the first ecosystems to be wiped out by climate change.

    A temperature rise of just 1 to 2℃ can lead to the death of the algae (海藻) upon which corals depend, draining them of color and making the structure more fragile. These bleaching (脱色) events can be temporary if waters cool, but the more frequent they are and the longer they last, the greater the risk of damage is. But that's exactly what is happening. Bleaching was first observed in 1983. It was seen on a global level in 1998, then 2010, and then from 2015 to 2017. Most available scientific evidence tells us that unless we do something to limit warming to 1.5℃, we will lose 99% of the world's coral reefs in coming decades.

    But there are other threats beyond warming. Off the Philippine island of Palawan, its old reefs have been badly damaged by dirty water from the tourist holiday center, pollution from boats and overfishing. The area ought to be a shelter because it's one of the ocean regions most bearable to climate change. "Even here, we are losing our corals," said David Obura, chair of the Global Specialist Group in the International Union for the Conservation of Nature. "We need to reduce stress from overfishing, coastal development, pollution and tourism."

    "I'm a generation of scientists watching them disappear. It's very depressing," Obura said. "Above 1.5℃, in about 50 years, they will be a treasure of historic movies and pictures, but very little to see in real life. Children born today may be the last generation to see coral reefs in all their glory."

    The world's first hydrogen-powered trains have begun running in Germany. They began carrying passengers Monday in Germany's northern Lower Saxony state. The new train will run 100-kilometer trips and can travel up to 140 kilometers an hour.

    A French railroad company called Alstom built the two trains. Team in Germany and France cooperated on the project, which was supported by the German government. The new train model ,called the Coradia ilint, signals the beginning of efforts in Germany and other nations to move away from pollution-producing diesel(柴油) trains.

    The Coradia iLint is designed to run on non-electrified train lines with low levels of noise.

    It uses a process that combines hydrogen and oxygen to produce electrical power. If the system produces more energy than the train needs at that time, it can store the extra energy in batteries. The only emissions (排放物) are water and steam.

    A single tank of hydrogen can run a Coradia iLint train for about 1,000 kilometers. This is very similar to the distance a diesel-powered train can run on with a single tank.

    Hydrogen-powered trains cost more than diesel trains to build. But Alstom officials say the operating costs are much lower. The company plans to provide another 14 Coradia iLint trains to Lower Saxony by 2021.

    The head of railroad operations in the area, Carmen Schwab, praised replacing diesel trains with hydrogen. She said the move was an important first step in using clean-burning technologies to reach climate protection goals.

    Officials say the area's many wind turbines (涡轮机)will produce part of the energy to create the hydrogen to power the trains.

    Alstom says several other European countries have also expressed interest in developing hydrogen train systems. France has already said it wants its first hydrogen train to be operating by 2022.

Reasons You Should Make Time for the Sunset

    Here's why you should consider making time to watch the sunset.

    ⒈It can slow down time.

Seriously. By witnessing the beauty of the sunset, you can slow down your perception (感知)of time. {#blank#}1{#/blank#}Amazingly, by taking the time to look at the vast sky, we're actually empowering ourselves to regain control of the clock.

    ⒉It can provide energy for you.

    Even if you have to go back to the office after you watch that last sliver disappear below the skyline, taking a few minutes out of your day to experience some of the golden hour will be worth it.{#blank#}2{#/blank#}Often when we feel exhausted we reach for a cup of coffee, but research suggests a better way to get energized (给予能量)is to connect with nature.

    ⒊It will force you to put your phone down.

    When we regard the experience of sunsets as special occasions, we feel the urge to document and save them——as if keeping photos of their beauty will help us remember that wonderful feeling.{#blank#}3{#/blank#}

    ⒋It will inspire you.

    There's a reason sunsets are a timeless and constant inspiration to poets, writers and romantics.

    ⒌{#blank#}4{#/blank#}

    All of us are drawn to sunsets, but people in a few special places really regard the sunset as a daily opportunity to give thanks；{#blank#}5{#/blank#}Crowds gather to cheer and applaud it, reinforcing (加强)the idea that we should celebrate and be thankful for each day.

A. Nature is fuel for the soul.

B. It will help you appreciate life's gifts.

C. Do you draw inspiration from the sunset?

D. It will allow you to exercise in a healthy way.

E. Do you feel like there aren't enough hours in the day?

F. But if you experience the sunset more regularly, you'll no longer see it through a screen.

G. In places like Santorini, Greece, and Maui, Hawaii, the sunset is regarded as a nightly celebration.