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    Pollution inside homes and other buildings kills more than 4 million people each year. Many people die as a result of breathing smoke or from cooking over wood-powered or coal-powered stoves.

    One way to reduce the number of deaths is through cooking equipment powered by the sun. Crosby Menzies, a solar power expert in a South African company, described his latest solar cooker called the "Sol-4". "It is four square meters of mirrors, six to eight meters in length. It is quite a large cooker. "

    The "Sol-4" works by reflecting (反射) light from the sun off large mirrors. The mirrors direct (把……对准) the light at a cooking pan. Then the light heats the pan with solar energy. Within two minutes, the pan is hot enough to cook sausages and onions. In just four minutes, water can be boiled. That is as fast as cooking with natural gas or electricity.

    The cooker is also much "friendlier" than other models because people do not have to stand in the sun to use it. And people can prepare meals without having to collect firewood or spend money on coal. Such individuals would be less likely to have breathing illnesses from harmful smoke.

    At present, the cooker only works when the sun is shining. But engineers are working on a way to make it work without sunlight.

    Each cooker costs about $ 2,000, which is a large amount of money for most Africans. To solve that problem, Crosby Menzies has created a non-governmental organization called Solar Cookers for Africa.  It plans to raise money through donations to provide poor people with solar cooking equipment.

    No Car Day was first started by 34 cities in France on September 22, 1998. It was started to protect the environment. By now, more than 1,000 cities around the world have had a No Car Day.

    The first No Car Day in China was in Chengdu in 2001. Other cities, including Taipei, Shanghai and Wuhan, also support the day.

    In Beijing, more and more people are joining the campaign. It asks drivers to leave their cars at home for one day each month and walk or ride a bike to work. It also calls on Beijingers not to use cars on June 5(World Environment Day). The slogan for the day is, “If we drive for one less day, we can have one more nice day.”

    So far, more than 200,000 drivers have shown their support. “We can't control the weather, but we can choose not to drive,” said Wu Zonghua, a car club chairman. Beijing is trying to have 238 blue sky days this year. In the first quarter of 2012, Beijing only had 52 blue sky days. This was 11 days less than the number for the same period the year before. Much of the dust comes from the desert, but cars cause most of the air pollution. We must do more for No Car Day.

    The kangaroo is the world's largest living marsupial (有袋动物). It was first found on the island of southwestern Australia. The animal was given its name by a famous English tourist in the 18th century.

    The kangaroo may be 7 feet(2.1m) tall when standing upright and the male can weigh as heavy as 200 pounds(90kg). The female (雌性) is smaller and lighter than the male. The kangaroo's head is small, but its ears are large, and its fore feet are really small. The animal has strong back legs and long tail.

    The kangaroo usually covers from 5 to 10 feet(1.5 to 3m) with each jump. The female is usually faster than the male. The mother kangaroo has a pouch (育儿袋) in its abdomen (腹部). The baby kangaroo grows up in the mother's pouch slowly.

    The kangaroo lives on grass and other plants. It is always moving from one place to another, lying down to sleep on the ground during the night. It likes to enjoy the warm sunshine. When it's in danger, it can use its back legs and strong tail to protect itself.

    Answer the following questions with No more than 6 words.

Nowadays the TikTok app  is welcome in many countries. In China, it's {#blank#}1{#/blank#} app called Douyin. Over 1 billion people use the app, not only adults but also children. It's easy {#blank#}2{#/blank#}(see) people watch short videos everywhere, at home, on the bus, on the train…People do many kinds of {#blank#}3{#/blank#}(thing) on Douyin, such as shopping, singing songs, dancing, cooking, making funny short videos and so on. More and more {#blank#}4{#/blank#}(famous) TV or film stars join them, they sell a lot of products on Douyin. Are you a {#blank#}5{#/blank#}(fan) of them? Do you want toknow {#blank#}6{#/blank#} to shop on Douyin? Here are some steps.

●Come into a live stream.

●Choose which products you want.

●Pay for {#blank#}7{#/blank#}(this) products.

●Wait for 2—3 days, and you'll receive them.

Most people are able to do Douyin shopping. It can {#blank#}8{#/blank#}(change) our life. But many people still worry {#blank#}9{#/blank#} the quality of the products. Also, people will buy too many things that are useless for them.{#blank#}10{#/blank#} it's important to shop on Douyi n properly*.

PE classes are becoming more interesting in China. Students can do many kinds of sports at school now.

T'ai chi

Gao Yuxiang from Yantai No,1 Middle School of Shandong Province enjoys t'ai chi at school. At first students do t'ai chi during breaks. And students fall in love with it soon. There is a t'ai chi match for Senior 2 students every year. "T'ai chi is different from ball games. It makes me calm down and become peaceful. It gets me ready for the next class," said Gao. After t'ai chi classes are over, Gao practises t'ai chi by himself in his free time.

Hip-hop dance

Ren Jianing is a hip-hop fan, and she has hip-hop classes in her high school this year. Every class they practise a new movement and in the next class they will learn to make a complete(整个的) dance."Our shirts are all wet after class, but I feel very happy. I join the hip-hop team. I learn teamwork and also make many good friends." said Ren.

Dragon boat race

The Dragon boat race is a tradition of Shenzhen Hongshan Middle School. Students hold the race in the playground instead of in the water.