阅读下列短文,在空白处填入一个适当的单词或填入括号内单词的正确形式。
A
Many people love outdoor hobbies, but accidents can happen if we’re not careful. Last weekend, my friends and I went on 1. outing to climb a mountain. I was 2. (scare) at first, but everyone encouraged me. However, I became 3. (care) when I got closer to the top. While taking a photo, I didn’t notice a loose stone and fell down. My knee hurt 4. (badly) than I thought, and blood started running down.
Luckily, one friend knew first aid. She said, “Don’t move yourself too much!” She used a scarf to stop the blood 5. running and called for help. Another friend gave me some 6. (suggest) on how to stay calm. “Remember this point,” she said. “More 7. (important), never take risks alone.”
Hobbies like hiking are fun, but they can be 8. (harm) if we don’t prepare well. Next time, we are certain 9. (check) the route, bring a first-aid kit, and never leave anyone behind. After all, hobbies should help us enjoy 10. (we), not cause injuries!
B
The Yellow River runs from the mountains
1. the sea. It gave birth to one of 2. oldest and most famous cultures in the world—the Yellow River culture. In the hearts of 3. (China) people, the Yellow River is the mother river. It is expected to play a more important role in our country’s 4. (develop).
The river got its name Huanghe in Chinese 5. its water is yellow. It took lots of yellow sand to the water when it ran through the Loess Plateau(黄土高原).
The river starts from Qinghai Province in northwestern China. It runs through a lot of places before 6. (run) into the Bohai Sea. The 5,464-kilometre-long river 7. (feed) about 12% of China’s population and provides water for about 15% of fields and more than 60 8. (city).
So far, our country has made great efforts in the environmental 9. (protect) of the river. Each year over 400 million tons of sand is prevented from being washed into it. Our mother river has become much 10. (clear) than before.

A 1. an 2. scared 3. careless 4. worse 5. from 6. suggestions 7. importantly 8. harmful 9. to check 10. ourselves
B 1. to 2. the 3. Chinese 4. development 5. because 6. running 7. feeds 8. cities 9. protection 10. clearer

C
How to Stay Healthy in Nature
Spending time in nature is a great way to
keep fit, but sometimes small things can make us
1. (scare)—like sudden rain or tricky paths. Don’t worry! Here are some 2. (suggest): First, always prepare for the 3. (change) weather. Bring a raincoat and wear comfortable shoes. Second, never go alone. Invite friends so that we can enjoy nature and protect 4. (we) together.
When we went hiking last weekend, we walked 5. (happy) but carefully. However, one boy ran too fast and 6. (throw) stones carelessly—luckily, no one got hurt. The guide told us to always stay safe on the path. If a path looks 7. (usual) (like it’s too narrow), stop and find another way. Remember: Safety comes first!
Nature also offers fun ways to exercise. Try biking or jogging in the park. Not only will you move your body, 8. you’ll also breathe fresh air. If you’ve never tried a sport before, just give it 9. go! For example, turn 10. your favourite music and dance in the garden—it’s a great way to stay active.
So go outside, enjoy nature, and stay healthy every day!

C 1. scared 2. suggestions 3. changeable 4. ourselves 5. happily 6. threw 7. unusual 8. but 9. a 10. on