(一)
Do you know what a landform is? We use landforms to describe the earth's 1. s，such as a mountain，or an island. The forces of nature shape the land year by year and finally 2. f different landforms. Human activities，such as 3. f，mining(采矿)，and building，also have an influence on landforms. Sometimes the influence is positive(积极的). For example，people can 4. b dams(水坝) to create lakes for water and power using. People can also plant trees to protect the 5. l and create homes for animals. However，some 6. h activities can hurt the landforms and cause problems to the environmental development of cities. People always cut down 7. f. It not only makes animals 8. l their homes but also makes floods happen more often. Landforms are 9. i for many reasons. For our future，10. e should do something to protect them.

(二)
If you want to feel the sense of real Beijing，walk on the main streets and visit a quadrangle(四合院). As traditional buildings，quadrangles are 1. m seen in northern China. A typical(典型的) quadrangle has a big square courtyard 2. w four buildings on its four sides. Usually，one big family lives here. The 3. d of a quadrangle follows Confucian(儒家的) ideas of respecting(尊重) the old. The northern main house gets the most sunshine，4. s the oldest member of the family lives there. The east and west wings(厢房) are for children and grandchildren. The southern building is the closest to the doorway. It is usually for servants(仆人) or guests. Living under the same roof 5. h to form a strong family bond(纽带). All family members stay close by sharing laughs and cries 6. t. Later，quadrangles developed into neighbourhoods for many different families. Strangers became 7. n. Their children became friends. When one family had 8. p，all warm - hearted neighbours came to help.
But nowadays，many 9. m tall buildings have replaced(取代) many of them. The 10. n of quadrangles in Beijing has dropped(减少). In order to protect quadrangles，the government has collected 923 valuable quadrangles in The Records of Beijing Siheyuan.

(三)(2025·南通市启东市模拟)
Do you ever feel like you can't focus on your work? Or do you feel a little down sometimes? Well，why not take a 1. b and go camping?
Going camping is the best fun in the world if we know 2. h to do it. Every healthy boy and girl should enjoy 3. l outdoors for a week or two every year. The 4. f air and camping activities can be good for your body and 5. m.
Four members make a good group for a camping trip. They can do much of the camp work in pairs. Then two members go fishing or hunting while the other two can stay to 6. l after the camp together.
First，choose a leader(领导者)，not because he or she is more important than others，7. b because if someone goes ahead and decides 8. w to go，the life in camp will be easier.
If this is your 9. f time going camping，you should go somewhere near home. After that，you can try the other way. Near every large city，there are some lakes or rivers. You can find a good camping site there. Campers always have more fun if they are near some 10. w.