Laughter is natural for people. We start to laugh at about four months of age. We start to laugh even 1 we start to speak.

    Laughter connects us with others. We laugh more when we are with other people. It's difficult to pretend to laugh. Laughter is 2. When people pretend to laugh, most people know it's not real.

    When do people laugh?

    Only 10 to 20 percent of laughter is about something 3. Most laughter is about being friendly with other people. Most laughter says, "I don't want to 4 with you. I want to be friendly with you." This kind of laughter brings people together.

    We often laugh when we feel nervous. In movies, there is often a joke at an exciting moment when everyone feels nervous. It is usually a(n) 5 joke, but we laugh a lot. Our laughter helps us 6.

    Why doesn't everyone laugh at the same joke?

    Not everyone has the same sense of 7. Some people think a joke is funny, but other people don't think so. People have different ideas about what is funny.

    Our idea of what is funny changes with 8. For young children, the world is new. They are interested in many things, so they laugh 9. Teenagers often laugh to protect themselves. Adults laugh at themselves and other people with similar problems. They laugh at things that give them stress. Our 10 for laughter change gradually.

下面材料是五则新闻报道。阅读这些新闻，从A-F选项中为每一条新闻选择一个恰当的标题，有一项是多余选项。

{#blank#}1{#/blank#}Drivers to Dapeng for the Qingming Festival holiday between Saturday and Monday will not have to order in advance. However, they will still need to ask for a spot for their vehicles to Shenzhen Fairy Lake Botanical Garden, police warned Thursday.

{#blank#}2{#/blank#}Drinking strong coffee — half an hour before exercise can increase fat-burning, according to a new study published in the Magazine of the International Society of Sports Nutrition(营养).

{#blank#}3{#/blank#}According to meteorological（气象学的） methods for calculating seasons, summer in the city likely began on, what might be the earliest date in this city's history, March 25, the Shenzhen Meteorological Observatory said yesterday.

{#blank#}4{#/blank#}Tokyo 2020 organizing committee(主委会) said that unlike the Olympic torch relay, which covers Japan's all 47 local governments, the Paralympics(残奥会) torch relay will only pass the four hosting regions of Tokyo, Shizuoka, Chiba and Saitama between Aug. 17 and 24.

{#blank#}5{#/blank#}Chinese musician Lyu Kanzhe will give a night of chiba music at the theater in MixC World. The chiba is one of the oldest Chinese woodwind instruments. It is a type of xiao, or flute. The shakuhachi is a Japanese chiba which was originally introduced to Japan from China in the eighth century and grew in the early Edo Period (1603-1868).

I'm forty. I left school 22 years ago. I don't regret many things about my school days but there are a few things I wish I'd known earlier as a girl. So here is my list of three things I'd learned at school.

□As a young child you try many new things. If you fail, you try again until you learn. Then you start school where you are usually only praised for doing things correctly. So what happens? You stop trying new things in case you get it wrong. I always remind myself: I won't give up halfway until I make it.

□I always wanted to be the best and one way of feeling good about myself was to see how much better I was than others. There was only one problem with this. When I saw they were better than me, I felt terrible. Now I compare me with myself. I asked myself if I did things as well as I could.

□How much time do you spend worrying about the future? I used to worry a lot. Now I know most things you fear usually never happen. If they happen, then they will most often not be as bad as you expected. In 6 months you probably won't remember most of the things you worry about now.

If you want to go shopping, think about how much money you can spend for new clothes.Think about the kind of clothes you really need.Then look for those clothes on sale.

There are labels (标签) inside all new clothes.The labels tell you how to take care of your clothes.The label for a shirt may tell you to wash it in warm water. A sweater label may tell you to wash it in cold water.The label on a coat may say "dry clean only". Washing with water may ruin (损坏) this coat. If you do as the directions on the label, you can keep your clothes looking their best.Many clothes today must be dry cleaned.Dry cleaning is expensive. When buying new clothes, check to see if they need to be dry cleaned.You will save money if you buy clothes that can be washed with water.

You can save money if you buy clothes that are well made.Well-made clothes last longer.They look good even after they have been washed many times. However, clothes that cost more money are not always better made.They do not always fit better.Sometimes less expensive clothes look and fit better than more expensive clothes.

Now the Internet has become an important part of our lives. What do you do on the Web? Here are some interesting and useful websites for you.