From his own version of Kim Kardashian's "Internet-breaking" picture to rocking the "Leia Buns"look,Mark Udovitch,28,hopes his celebrity impersonations (名人模仿) will help raise money for cancer patients.

    Dressed in a garbage bag,black cleaning gloves and a plastic bag tie,the recreation (娱乐) of Kim Kardashion's picture is one of Mark's favorite celebrity impersonations.

    Game of Throne characters are also a popular choice,and the radiation doctor has cosplayed (角色扮演) many famous figures.Mark says the reaction to the pictures has been positive,with a lot of laugh from his co-workers."I have gotten a very positive response from many other radiation doctors,who privately message me,saying how much respect they have for me,"he said.

    But while the radiation doctor is having fun with his wild and strange creations,the cause behind it is sad.A patient once told him she was more devastated about losing her hair than surgery.It was at that moment that Mark decided to stop getting haircuts and start growing his hair.The radiation doctor will shave his hair off in a "Dry July Shave Off" and donate it to make false hair for cancer patients.

    Mark recalled,"Over the course of 2.5 years,my mates have been absolutely belting me with comments about who I look like with my long hair.I took a photo of me impersonating Scott Stapp,the lead singer of Creed,as a joke last year and posted it on Facebook.It got 150+ likes,which is large for me since I am not very social media savvy(懂行的).Since that image got so much notice that I wonder how many celebrities I could actually impersonate in the lead.Shaving my head may be used as a means of raising awareness."

    The Colonel（上校） asked Ashenden a good many questions and then suggested that he had particular qualifications for the Secret Service. Ashenden knew several European languages and the fact that he was a writer provided excellent cover: on the pretext（借口） that he was writing a book he could, without attracting attention, visit any neutral country.

    It was while they were discussing this point that the Colonel said, "You know you might get material that would be very useful to you in your work. I'll tell you an incident that occurred only recently. Very dramatic. A foreign government minister went down to a Mediterranean resort to recover from a cold and he had some very important documents with him that he kept in a dispatch case（公文箱）. A day or two after he arrived, he picked up a beautiful blonde at some restaurant or other, and he got very friendly with her . He took her back to his hotel, and when he came to himself in the morning, the lady and the dispatch-case had disappeared. They had one or two drinks up in his room and his theory is that when his back was turned the woman slipped a drug in his glass.

    "Do you mean to say that happened the other day?" said Ashenden.

    "The week before last ."

    "Impossible," cried Ashenden. "Why! We've been putting that incident on the stage for sixty years, we've written it in a thousand novels. Do you mean to say that life has only just caught up with us?"

    "Well, I can guarantee the truth of the story." said the Colonel, "And believe me, the government has been put to no end of trouble by the loss of the documents."

    "Well sir, if you can't do better than that in the Secret Service," sighed Ashenden, " I'm afraid that as a source of inspiration to the writer of fiction, it's washout（失败）."

    When I was growing up, I had an old neighbor named Doctor Gibbs. He didn't look like any doctor I'd ever known. He never yelled at us for playing in his yard, but was always very kind.

    When Doctor Gibbs wasn't saving lives, he was planting trees. He had some interesting theories about planting trees. He believed in the principle “No pain, no gain”. He hardly watered his new trees, which flew in the face of conventional(传统的) wisdom. Once I asked why and he told me that watering plants spoiled them because it made them grow weaker. He said you had to make things tough for the trees so that only the strongest could survive. He talked about how watering trees made them develop shallow roots and how, if they were not watered, trees would grow deep roots in search of water. So, instead of watering his trees every morning, he'd beat them with a rolled-up newspaper. I asked him why he did that, and he said it was to get the tree's attention.

    Doctor Gibbs died a couple of years after I left home. Every now and then, I walked by his house and looked at the trees that I'd watched him plant some twenty five years ago. They were all tall and strong.

    I planted a couple of trees myself a few years ago. Two years of attending these trees meant they grew up weak. Whenever a cold wind blew, their branches trembled. Adversity(逆境) seemed to benefit Doctor Gibb's trees in ways comfort and ease never could.

    Every night before I go to bed, I check on my two sons. I often pray that their lives will be easy. But lately I've been thinking that it's time to change my prayer. I know my children are going to meet with hardship. There's always a cold wind blowing somewhere. What we need to do is to pray for deep roots, so when the rains fall and the winds blow, we won't be torn apart.

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    The hemlock(铁杉) trees along the Wappinger Creek, New York, look healthy. However, scientist Gary Lovett says the white balls which provide protection for the bugs are created by a tiny insect. It's hard to believe the tiny bug could kill a tree. However, trees can end up with millions and millions of the pests. When there are that many, it ends up killing the tree.

    The bug from East Asia is slowly killing trees across the USA. The trouble－making bug is just one of many invasive(入侵的) pests that have slipped into the United States. They can hurt other living things in their new home.

    Many invasive pests arrive on wooden pallets piled inside shipping containers. They support and separate goods, and keep them from sliding around. Invasive pests often tunnel into the pallets.  How can we stop pests from riding on pallets? Lovett says new rules are needed. The companies that make pallets don't want more rules. Congress has added an amendment(修正案) in the 2018 Farm Bill to try and prevent this problem. However, Lovett is not hopeful it will make much of a difference. Pallets are checked by inspectors. Many are sprayed with bug－killing pesticide. "I believe in the system，" said Brent McClendon, president of The National Wooden Pallet and Container Association. He also said shipping containers are checked very carefully.

    Still, each year 13 million containers are shipped to the U.S. Each is full of wooden pallets. Lovett says: "Inspectors can't possibly check everything. All it takes are a few bad pallets; we should get rid of wooden pallets." He believes pallets should be made of plastic or eco－composite wood. Eco－composite wood is a mix of wood fiber and plastic. Insects cannot hide into it. One problem is that these choices cost more. They may be worth the extra money, though. Invasive pests cost the U.S. $5 billion a year. Trees don't just die in forests. They also die in cities and our yards. Then, they need to be replaced. That costs money, too.

    At a comedy night at Johns Hopkins Univerity in Maryland, members of the school's comedy(喜剧) club bring lots of laughter to their classmates with funny speeches and humorous body movements. These college student comedian's humour entertains busy, young people and eases their stress.

    Yet the club member Arella Shua says comedy is serious work. Every comedy starts as an individual project-- each member writes their own material. Then they try it out in weekly club meetings where all club members read the material, going joke by joke and seeing what works and what doesnt. Nothing unsatisfactory will be compromised(妥协). In this way comes a satisfying comedy.

    Ariella joined the club last year. Now she does not go anywhere without bringing something on which she can take notes. "Whenever I just have a thought in my head or when I see something or overhear someone saying something in the library, I just put it down, "Arielae explained. "when I'm trying to write my own set, I go through that……to see if there is anything in there that I can use."

    Club president Nicholas Scandura finds writng one of the many skills he has developed since joining the club."Writing jokes takes a lot of critical thinking." he said. The club gives its members a sense of community. When they meet, they share funny experiences. tell jokes and laugh.

    Harry Kuperstein discovered the club was a natural fit. Noticing the funny qualities of different situations improved his way of looking at the world. Becoming an active member also helped him work on the future skills he'll need as a medical doctor. "Having jokes ready to go might help smooth these interactions and make you a better public speaker, " he said.