A proverb says, "Time is money". But in my opinion, time is even {#blank#}1{#/blank#} precious than money. Why？ {#blank#}2{#/blank#}when money is spent, we can earn it back. However, when time is {#blank#}3{#/blank#}（go） , it will never return.{#blank#}4{#/blank#} is known to all that the time we can use is limited. Therefore we should make {#blank#}5{#/blank#}use of our time to study hard so as to serve our country in {#blank#}6{#/blank#}future. But it is a pity that there are a lot of people {#blank#}7{#/blank#}do not realize the value of time. They waste their precious time smoking, drinking and playing. In {#blank#}8{#/blank#}word, we should form the good habit of {#blank#}9{#/blank#}(save) time. Do not put off what can be done today {#blank#}10{#/blank#}tomorrow.

    Some time ago, a friend of mine who worked in a part of the city I didn't know very well, invited me to call on him. It took me hours {#blank#}1{#/blank#} (get) there and I took great trouble finding a proper place to park my car. As I was already half an hour late, I parked my car quickly on a non-parking place. At noon, just as I {#blank#}2{#/blank#} (leave) my friend's office suddenly I had no idea {#blank#}3{#/blank#} I had parked my car. I could hardly go up to a policeman and tell him that I had lost a small green car somewhere! I had to walk down street after street and examined each car {#blank#}4{#/blank#} (close). I was very happy to see a small green car just behind an old car. But how {#blank#}5{#/blank#} (disappoint) I was to discover that though the car was exactly {#blank#}6{#/blank#} my own, it belonged to someone else! I was very tired and went off for lunch. About half an hour later, I left the restaurant,{#blank#}7{#/blank#} was nearby, and walked down the street. Turning the corner, I nearly jumped for joy: my car was right in front of me. But soon I felt down because a ticket {#blank#}8{#/blank#}(attach) to my car.

    To tell the {#blank#}9{#/blank#} (true), driving in crowded cities is far from being a pleasure. So walking or cycling{#blank#}10{#/blank#} (be) a good choice.

    Many people may think the Forbidden city, or the Palace Museum as it's also called, is {#blank#}1{#/blank#} great, old-fashioned museum. {#blank#}2{#/blank#}, in recent years, the museum has been working hard {#blank#}3{#/blank#} (promote) Chinese cultural heritage among the young people.

    The museum s online store now offers special cultural and creative {#blank#}4{#/blank#} (product). For example, in 2014, it{#blank#}5{#/blank#} (begin) to sell earphones that look like the necklaces worn by ancient officials , which even brought in {#blank#}6{#/blank#} (rough) 1 billion yuan a year.

    Last year, a documentary {#blank#}7{#/blank#} (name) Masters in the Forbidden City became popular online. It is about the people {#blank#}8{#/blank#} job is to repair the relics in the museum. Many of these workers are very young and some are even {#blank#}9{#/blank#} their 20s.

    Some other museums across the country, such as the National Museum of China, {#blank#}10{#/blank#}(inspire) by the Palace Museum's efforts and are working on similar projects of their own.

    The UN is an international organization which is made up of countries that want to promote world peace. Now I'm a Goodwill Ambassador for {#blank#}1{#/blank#}(they). My job with the UN is voluntary and I visit countries {#blank#}2{#/blank#} the UN has programmes to help people. When I visit these countries, I'm followed by the television and press and my visits {#blank#}3{#/blank#} (record), which will help people know better about the work of the UN.

    Recently, I traveled to South Africa because of my work with the UN. There I met some {#blank#}4{#/blank#} (woman) who have organized themselves into a group. They collect about 1.35 yuan per day {#blank#}5{#/blank#} each member and add it to some money {#blank#}6{#/blank#}(contribute) by the government. With the money, they can afford 3 {#blank#}7{#/blank#}(acquire) materials and make baskets to sell at the market. If they are lucky enough, their group will become {#blank#}8{#/blank#}(large) and maybe set up a shop.

    Such programmes can change people's lives. There are a lot of other worthwhile programmes like this under {#blank#}9{#/blank#} umbrella of the UN that have helped millions of people worldwide.

    Apart from the urgent problems caused by wars and conflicts, the UN helps countries with {#blank#}10{#/blank#}(vary) other problems. To learn more about the work of the UN, you can visit the UN websites.

    A few people have lucid (清醒的) dreams, in {#blank#}1{#/blank#} the dreamer is aware they're dreaming and can control the experience. Some others can learn {#blank#}2{#/blank#} (have) lucid dreams. The practice can be used to deal with frightening dreams. However, its potential has been limited by it often {#blank#}3{#/blank#} (be) so hard to achieve. Now, researchers have developed the most effective method yet for promoting lucid dreams.

    The researchers let 121 adults aged 19 to 75 pick something {#blank#}4{#/blank#} (see)in a previous dream. It was called a "dreamsign" that can serve {#blank#}5{#/blank#} a reminder to become lucid when met again. The {#blank#}6{#/blank#} (volunteer) were then handed capsules. Each person got a high-dose (大剂量的) capsule, a low-dose capsule and a placebo (无效对照剂) capsule, but they couldn't tell which was which. On three occasions, they woke in {#blank#}7{#/blank#} middle of the night, took a capsule, imagined their dreamsign and went back to sleep. The high dose was most effective, causing lucid dreams in 42 per cent of participants. About 27 per cent {#blank#}8{#/blank#} (report) lucid dreams with the low dose and 14 per cent after taking the placebo capsule.

    The potential applications are {#blank#}9{#/blank#} (excite). "This new method has the success rate we need to be able to {#blank#}10{#/blank#} (proper) do research on lucid dreaming," says Denholm Aspy at the University of Adelaide in Australia.