I work in a big factory in a town {#blank#}1{#/blank#} is quite far from my home. One day, after a whole day's work, I {#blank#}2{#/blank#} (go) back home by bus. That day was {#blank#}3{#/blank#} long, hard one for me as the stress from work weighed heavily on my mind.

    A girl, who I didn't know, sat next to me. She asked me some questions {#blank#}4{#/blank#} (casual) and we had a short conversation. I thought to myself that she was just a {#blank#}5{#/blank#} (strange) to me and didn't take much interest.

    After a while, she suddenly handed me some chocolates and said that it was {#blank#}6{#/blank#} (she) birthday. I immediately responded with a smile and my heart felt free {#blank#}7{#/blank#} the stress that I had been carrying. In a single moment I felt the heaviness of the day {#blank#}8{#/blank#} (transform) into lightness of a feather. Her simple act gave me joy {#blank#}9{#/blank#} I didn't particularly enjoy the chocolates as much. The only thing I could do was to wish her a long life. I can't remember her face now but {#blank#}10{#/blank#} (recall) the incident makes me happy.

    I am Adam Rouse. I first{#blank#}1{#/blank#}(buy) cannabis from a man in the street and continued to buy cannabis from{#blank#}2{#/blank#} (he) for six months and as a result, I got addicted{#blank#}3{#/blank#}it. One day, the man offered me some crack cocaine, a more{#blank#}4{#/blank#}（power）addictive. When I went back to the man for more crack cocaine, he asked me for a lot of money. I was in terrible pain when I couldn't afford to buy any drugs.{#blank#}5{#/blank#}(get) money, I broke into{#blank#}6{#/blank#}house and stole something to sell for money. The more drugs I took, the more addicted I became. So I had to steal something every day to pay for the drugs. One day, I{#blank#}7{#/blank#}（catch）stealing and sent to the police station. The next day, a doctor came to see me and told me that I could die {#blank#}8{#/blank#}I couldn't stop taking drugs. I took his advice and stopped{#blank#}9{#/blank#}(immediate). Now I work in a center for drug addicts,{#blank#}10{#/blank#}(help) others to stop taking drugs.

    Why do many of us find {#blank#}1{#/blank#} difficult or impossible to fall asleep in a bed other than our own? Is it because the bed is {#blank#}2{#/blank#} (comfort)? According to a new study published in Current Biology, a significant reason is {#blank#}3{#/blank#} the scientists call "first night effect". They believe that one side of the brain acts as a "night watch" to warn us about potential dangers. It forces us {#blank#}4{#/blank#} (stay) awake on the first night in a new environment.

    For the study, 35 young volunteers {#blank#}5{#/blank#} (ask) to sleep in a sleep lab for several days. Meanwhile, researchers watched their brain activities.

    According to the researchers, on their first night, the left brains were {#blank#}6{#/blank#} (active) than the right brains and people had a hard time sleeping. However, left-brain activity decreased as days went by, {#blank#}7{#/blank#} (fall) even to the point of complete calm. In this process, the participants got an increasingly better sleep experience.

    The {#blank#}8{#/blank#} (finding) suggest that the different rhythms of the sides of the brain affect our sleep. When the two sides work {#blank#}9{#/blank#} (different), the balance between them is broken. Thus, the brain can't relax and is sensitive to anything strange in the surroundings, just {#blank#}10{#/blank#} it is in the daytime.

In China, the history of people planting and using bamboo can date back to as far as 7,000 years. The {#blank#}1{#/blank#} (apply) of bamboo in science and technology is thrilling. In 251 BC, Li Bing, in Sichuan, {#blank#}2{#/blank#} (lead) the local people in building the Dujiang Weirs, in which bamboo played an important role. During the Han Dynasty, the people in Sichuan {#blank#}3{#/blank#} (success) sank a 1,600­-metre-­deep well with thick bamboo ropes. This technology did not spread to Europe until the 19th century, and it was by using the technology {#blank#}4{#/blank#} the Americans drilled(钻) the first oil well in Pennsylvania in 1859.

Bamboo culture contributes to encouraging people to hold on when {#blank#}5{#/blank#}(face) tough situations.