Ⅱ. Complete the following English sentences according to the Chinese. 根据汉语意思完成英语句子,每空一词。
1. The famous mountain in this area is about 3,000 meters (海拔以上), so climbing it needs good physical condition.
2. After training hard for half a year, the athletes finally managed to (到达顶峰) of the competition and won the championship.
3. The brave firefighters are willing to (冒着生命危险) to save people trapped in the burning building.
4. Many children have (……的梦想) becoming astronauts and exploring the mysterious space when they grow up.
5. You can borrow this valuable book from the library (只有) you promise to keep it clean and return it on time.

II. 1. above sea level 2. reach the top 3. risk their life 4. the dream of 5. only if

Ⅲ. Complete the sentences with the given words in their proper forms. 用括号中所给单词的适当形式完成句子。
1. The small village is in a quiet valley, surrounded by green hills. (locate)
2. My uncle is an experienced . (travel)
3. The part of the country is known for its cold winters. (north)
4. This mountain path is quite dangerous, so it's to hike here. (risk)
5. The fire causes the of many animals. (die)
6. A skilled can reach the top of this mountain in less than three hours. (climb)
7. We can find the size of something by means of . (measure)

III. 1. located 2. traveller 3. northern 4. risky 5. death 6. climber 7. measurement

Ⅳ. Complete the passage with the correct forms of the given words. 用所给单词的适当形式完成下面短文,每空一词。
Lucy is a 1 (determine) girl who loves science. She has a strong 2 (curious) about the world around her, especially 3 (nature) phenomena (现象) like 4 (change) weather. Last month, she joined a club to learn about different ecosystems. With the help of a professional 5 (explore), she 6 (successful) observed how plants stay 7 (live) in dry areas.
Lucy's next goal is to learn more about 8 (northeast) forests. She plans to visit a research center there next summer. To prepare for the trip, she is reading books that explain 9 (simple) how forests affect the environment. She hopes her experiences will help her understand how humans can protect these important natural areas better.

IV. 1. determined 2. curiosity 3. natural 4. changeable 5. explorer 6. successfully 7. alive 8. northeastern 9. simply