B

    According to the World Health Organization (WHO), environmental pollution kills 1.7 million children under the age of five every year worldwide. The WHO warns that child deaths will increase greatly if pollution continues to worsen. Of all the environmental problems, air pollution is being called the most dangerous.

    Most of these deaths take place in developing countries. However, WHO environment and health chief Maria Neira tells that air pollution is a leveler between rich and poor. Everybody, she says, needs to breathe.

    “You can be a very rich child, your parents very rich, but living in a place, in a city, which is very polluted. Then there is very little you can do because we all need to breathe. Air pollution is everywhere.”

    Maria Neira says one of the most important ways to reduce air pollution is to produce cleaner fuels for cooking and heating.

    “Almost half of the world population is using dirty fuels for cooking, heating, and lighting at home. And, this is affecting very much mothers who are staying and cooking at home, but the children who are around mothers—they are exposed as well.”

    Cleaning up how the world cooks, heats and lights homes and other buildings is a big-picture goal.

    But what can every one of us do to limit our family to air pollution?

    The U.S. Environmental Protection Agency has the following suggestions:

    ● Avoid walking where there is a high volume of vehicle traffic.

    ● Equip homes with air filters and air conditioning units.

    ● Limit your time outside if you live in an area that issues warnings about air quality.

    ● Wear high-grade, rated face masks tightly to the face when air quality is poor.

    ● If you live or commute in a very polluted area, remove your clothes and wash immediately after entering your house.

    However, the WHO stresses that governments around the world need to take the lead on ensuring that children grow up in a clean environment.

When I first went to Britain，a lot of things seemed strange to me. For example，people drove on the left side of the road and many people carried an umbrella all the time. There were also many other things that I found really surprising. 

The first thing I noticed was how polite British people were. When I got on the bus，the driver would greet me；when people got off the bus，they would say "Thank you" to the driver；when I went into a shop，I would be greeted by a smiling salesman. 

The family I stayed with were very nice，but their house was full of peculiar（奇怪的）things. Firstly，there were carpets everywhere，even in the bathroom. Also，the bathroom was full of surprises. The first time I tried to wash my hands I burned myself. The cold and hot water came out of different taps. Then，when I tried to dry my hair，I couldn't find a socket（插座） for my hairdryer. Maybe that wasn't such a big surprise. More surprising was the fact that British people didn't take their shoes off when they went into a house—can you imagine？

I guess that for British people all of these things are normal. It's only when you visit a foreign country that you realize that what you think is normal is not. Normality depends on where you are. 

On April 26, 2024, the Shenzhou XVIII manned spaceship's three astronauts, Ye Guangfu, Li Cong and Li Guangsu successfully entered the space station and met with the Shenzhou XVII astronauts.

The crew (乘组) will carry out more than 90 experiments (实验) in space so that they can study microgravity in space, medicine and many other science topics.

This mission is special because it is China's first space-based study of water ecosystems (生态系统). The astronauts brought a fish tank filled with water to the space station. Four zebra fish and algae (水藻) live in it. The algae can give the fish oxygen, keeping them alive. The tank can also feed the fish, control the temperature and lighting, and collect fish eggs by itself.

Why zebra fish? Because they share 87 percent of their genes (基因) with humans. Next scientists plan to take mice to space. They'll raise them there and then bring them back to Earth for further study. Studying animals in space can help scientists understand how the human body reacts to space conditions.

The Shenzhou XVIII crew will return after six months in space. After that, they will help achieve China's first manned landing on the Moon.

I am Nancy, and my brother is Bob. {#blank#}1{#/blank#}

 In my room, my books and dictionaries are in the bookcase. Where are my keys? {#blank#}2{#/blank#} I havea black schoolbag. It is on the chair. My pens, pencils and erasers are in my pencil box. {#blank#}3{#/blank#}

 In Bob's room, his books and notebooks are everywhere— on his bed and his chair. He has a tape player. {#blank#}4{#/blank#} It's under his bed. And his schoolbag is under his bed, too. Bob always asks," Where are my keys? Where's my ruler? Where's my pen?"{#blank#}5{#/blank#}

The ability (能力) to solve problems is usually important. It's a part of children's life. There are some ways for it. 

Make sure the problems 1 . It means we need to know what the problems are. It seems to be a simple 2 important step. If you can't understand the problem, your 3 can't work well. For example, if your room is in a big mess (杂乱), the problem might be that you don't have enough (足够的) places to 4 everything. 

Make all the problems 5 . If you can turn them into small parts, children can 6 them easily. For example, if we need to do much practice to pass a test, we can make it into many small 7 . 

Prepare enough information. Look for many 8 about the problem, such as its time and place. You can also ask some teachers for some advice. After that, you can think of a way for the problem. Think of different ways and 9 the best one. For the ways, we need to take some tests to 10 . if (是否) they are useful. For example, if you are hungry, you can call for food, cook food at home or go to a restaurant. Choose the best one you like.