When he was a little child, Andrew had a serious bad habit of sucking（吮吸） his fingers all day long, especially when he had nothing interesting to do: when he was sleeping, when watching TV, when sitting on the sofa and so on. At the beginning, his parents didn't think it was a bad habit.

Therefore, as time goes by, the boy couldn't give up his habit. Now, in his twenties, Andrew seems to have developed the bad habit into another one: he always bites his nails(指甲). He cannot stop biting his nails all the time. There're moments when he even doesn't know that he is doing it. He realized it was a problem and this worried him a lot. Some of his friends told him about this bad habit, and he stops for a while. But then, if he isn't busy doing something, he starts biting his nails again!

In fact, there're a lot of bacteria(细菌) in your nails and they can cause some disease. Also, the nails will become ugly and hard to recover. The worst thing is that this bad habit will bring the mental illness（心理疾病）. If people cannot correct it in time, it can affect man's mental health.

In short, bad habits are very worrying, especially when the person with the habit is in public and cannot stop himself or herself doing it. Still, there must be ways to give up these bad habits and these people should try their best to stop doing them.

    On his first day he was inside a church taking photos when he noticed a golden telephone on the wall with a sign that read "$10,000 per call". Jay wasintriguedso he asked a priest (牧师) what the telephone was used for. The priest told him that it was a direct (直接的) line to heaven（天堂） and that for $10,000 you could talk to God. Jay thanked the priest and went along his way.

    Next stop was in Des Moines, and there at a very large church, he saw the same looking golden telephone with the same sign under it. A nearby nun（修女）told him that it was a direct line to heaven and that for $10,000 he could talk to God.

    Jay decided to travel to Australia to see if they had a similar phone. He arrived at Western Australia, and again, in the church he entered, there was the same looking golden telephone, but this time the sign under it read "40 cents per call."

    Jay was a little surprised and asked the priest about the sign. 'Father（神父） Brian, I travelled all over the world and I saw this same golden telephone in many churches. I know it is a direct line to Heaven, but in all of them price was $10,000 per call. Why is it so cheap here?'

    Father Brian smiled and answered, 'My son, you're in Australia now - this is Heaven, so it's only a local call.'

    I travel a lot in my work, and what I dislike about my job is eating alone. It always makes me feel lonely to see others laughing and talking. So, eating in the room is a better choice for me.

    After eating alone in my room for three nights in Houston, I needed to get out of my room. Although the restaurant opened at 6: 30, I arrived at 6: 25. The waiter at the front desk made a comment (评论) about my "being there really early" in surprise. I explained that I hated eating alone in restaurants. He then took me to a lovely table near the window and asked me whether I would mind if he sat down with me for a while.

    I was glad! He sat and talked with me about his career goals (职业目标) and the difficulty of being at work on nights, weekends and holidays. He said he hadn't enough time to be with his family. After 15 minutes, he saw some customers at the front desk and excused himself. I noticed that before he went to the front desk, he stopped in the kitchen for a moment.

    Then another waiter came out of the kitchen and had a wonderful chat with me. Before I left that night, some other waiters, even the cook, came out of the kitchen and sat with me!

    When I asked for my bill about one hour later, all the people who had sat down with me came over in a big group to my table, and gave me a red rose. And I cried! What a beautiful experience!

 {#blank#}1{#/blank#} Can you imagine a sea of sand three times bigger than India? This is the Sahara Desert, the largest desert in the world. It covers 11 countries in North Africa and is over 9 million square kilometers. 

 {#blank#}2{#/blank#} In the Sahara, temperatures are very different during the day and night. It is much hotter during the day than at night. Because of the extreme 极端的) temperature in the desert, it is a very difficult place to survive(幸存). Marco Rivera, our survival expert, has some tips. 

 {#blank#}3{#/blank#} Take warm clothes and a blanket. You will need a hat, long trousers and a thick sweater to keep you warm at night. During the day, cover your body, head and face. Clothes protect you from the sun and keep water in your body. You will also need a warm blanket at night. It can get cold rapidly (迅速地). When the temperature drops, it can make you feel even colder. 

 {#blank#}4{#/blank#} Try to drink some water at least once an hour. You need your water to last as long as possible. Drink only when you need. If you eat, you will get thirsty and your water will run out soon. You can eat a little to stop you from feeling very hungry. Eat small amount of food slowly. 

 {#blank#}5{#/blank#} It's important to stay out of the sun during the day. Make a hole under your car and lie there. This will keep you cool and help you sleep. Find a warm place to sleep at night. A small place near a tree or a rock will be the warmest. But be careful before you decide where to sleep. Dangerous animals like snakes also like to sleep in these places. Look carefully for animals before you lie down. 

(a)根据短文内容，从方框中选出每段的主旨大意。

(b)根据短文内容，补全下面的表格。每空一词。