Believe it or not, have you ever noticed that you feel happier and more relaxed after you eat bread, pasta or fruit? Do you find that you are more energetic and awake after eating yogurt or beans? These things are not accidents. Food affect {#blank#}1{#/blank#} we feel more than we think. Scientists researching {#blank#}2{#/blank#} (it) effect on our moods are beginning to understand that we can influence our feelings with what we eat.

    Although our moods relates {#blank#}3{#/blank#} having various foods, it is not quite as simple as choosing the foods for the right occasions. If that {#blank#}4{#/blank#} (be) the case, athletes would not eat a lot of carbohydrates before a race.

    Another chemical {#blank#}5{#/blank#} (connect) with our mood is caffeine, which {#blank#}6{#/blank#} (find) in coffee, chocolate and many types of tea, is perhaps {#blank#}7{#/blank#} worst thing you can have when you are feeling stressed.

    Of course, {#blank#}8{#/blank#} (enjoy) a nice meal with friends, whatever we eat, can also impact our spirits. Being with friends and family plays a big part in experiencing happiness.

    Most {#blank#}9{#/blank#} (important), though, remember the following old rule: try to eat different food, {#blank#}10{#/blank#} not too much.

    Who built the first canal? Perhaps some people long ago, living in {#blank#}1{#/blank#} dry country, discovered that they could dig ditches (沟壑) {#blank#}2{#/blank#} (irrigate) their fields with the river water. And naturally in the days {#blank#}3{#/blank#} boats were the most important means of transport, canals were the easiest means of reaching a place. Furthermore, a ditch {#blank#}4{#/blank#} (join) two rivers proved efficient for boat travel.

    Today, most countries in the world have canals. Even in the 2lst century, goods can be moved more {#blank#}5{#/blank#} (convenient) by boat than by some other means of transport. Some canals, such as the Suez or the Panama, {#blank#}6{#/blank#} (save) ships weeks of time by making their voyage a thousand miles {#blank#}7{#/blank#} (short). Other canals permit boats to reach cities that {#blank#}8{#/blank#} (situate) inland. Still other canals drain lands where there is too much water. Help farmers irrigate fields without enough water, and provide water power for {#blank#}9{#/blank#} (factory) as well.

    Most of the canals have a long history. Canals existed in Egypt thousands of years ago. And the Grand Canal of China was begun about 2, 500 years ago and took centuries to finish. During the seventeenth century, France built many canals that are still {#blank#}10{#/blank#} use today.

    For the first time in 94 years, the Palace Museum has extended its opening hours, allowing the public to celebrate the Lantern Festival at night in the ancient palace.

    About 3, 000 lucky visitors received free tickets from the government, among {#blank#}1{#/blank#} was Zhang Zhifu, a 77-year-old public security volunteer. It's a mark of gratitude for her volunteer work. "It is {#blank#}2{#/blank#} (true) an honor to be granted this special privilege," Zhang said.

    To guarantee the {#blank#}3{#/blank#} (safe) of the palace, festival organizers {#blank#}4{#/blank#} (plan) this year's Lantern Festival event used LED lights rather than traditional paper lanterns and red candles. It's a fascinating event for visitors to absorb {#blank#}5{#/blank#} (they) in the festive atmosphere in the museum. Discussion of the Palace Museum's new look lit up social media following Tuesday's display.

    Since he became director of the Palace Museum, Shan Jixiang {#blank#}6{#/blank#} (bring) many changes to the world's {#blank#}7{#/blank#} (large) royal complex (建筑群). Once in a speech the 64-year-old director shared his idea about how to make traditional {#blank#}8{#/blank#} (treasure) come alive again. "{#blank#}9{#/blank#} matters to a museum is not how many visitors they have, but how close they are {#blank#}10{#/blank#} people's daily lives," he said.