Ⅱ. 根据中文意思完成句子。
1. 即使在一万一千米深的地方也有垃圾。这让很多人感到震惊。
There is rubbish even . That many people.
2. 死海的湖面低于海平面 416 米。
The Dead Sea's surface is 416 metres .
3. 珠穆朗玛峰高 8,848.86 米。
Mount Qomolangma is 8,848.86 metres .
4. 每秒有 25,768 立方米的水流倾泻而下，汇入英加瀑布。
25,768 pours down Inga Falls each second.
5. 撒哈拉沙漠的面积约为 900 万平方千米。
The Sahara Desert is about 9,000,000 in size.

Ⅱ. 1. at 11,000 metres deep；shocks 2. below sea level 3. high 4. cubic metres of water 5. square kilometres

Ⅲ. 至少选用下列单词中的五个，写一段完整的对话。
wonder, below, level, surface, depth, research, unusual, bottom, development, desert, mile, pool

A: Hi, Jack! I just read some research about an unusual pool in the desert. It's really amazing!
B: Really? I wonder how a pool can exist in such a hot and dry place.
A: The surface of the pool looks calm, and scientists say its depth is more than 12 meters.
B: That's surprising! Have they found anything special at the bottom?
A: Yeah, they found some rare tiny creatures. And the latest development is that they're checking why the water level never goes down quickly.
B: Wow, that's so interesting! I hope we can learn more about it in our science lesson.

选取了wonder, research, unusual, desert, pool, depth, bottom, development这些指定单词，围绕沙漠中特殊水池的话题编写对话，内容符合八年级学生的认知，语言贴合日常交流场景，合理运用了目标词汇，句式简单易懂，符合该年级英语水平要求。