一、假设今天是世界奇观探索日,为了今天的“世界奇观”主题课,老师要求同学们先完成一份词汇练习。请阅读下面句子,用方框中所给单词的适当形式填空。每个单词限用一次。
deep below bottom research surface
1. Scientists are doing to find out why this ancient forest can grow so well.
2. The of the Mariana Trench is about 11,000 metres.
3. In winter, the temperature the ground is much higher than that on the surface.
4. Many unusual and wonderful animals live at the of the Mariana Trench, the deepest point in the ocean.
5. The Dead Sea's is 416 metres below sea level, which is the lowest place on earth.

1. research
2. depth
3. below
4. bottom
5. surface

二、开始上课了,老师组织了一场“世界之最”知识抢答赛。Peter 和 Emma 代表他们小组参赛。请阅读下面对话,在空白处填入一个适当的句子,使对话通顺、合理,意思完整。
(H=Host, P=Peter, E=Emma)
H: Welcome back to Amazing Places on Earth! Are you both ready?
P: Yes!
E: Of course!
H: Question one: 1.
P: That's the Nile River in Africa.
H: Good! 2.
E: It's 6,671 kilometres long.
H: Yes! Next question: 3.
E: Is it Angel Falls?
H: That's right! Do you know how high it is?
P: I think it's about 979 metres high.
H: Great! Now, 4.
P: I know! It's Lake Baikal.
H: Correct! 5.
E: It's more than 1,600 metres deep. It's still getting deeper.
H: Excellent!

1. What's the longest river in the world?
2. How long is it?
3. What's the highest waterfall in the world?
4. What's the deepest lake in the world?
5. How deep is it?

三、因为在抢答中表现出色,老师推荐了 Peter 参加全年级的英语听力竞赛。请听下面一段独白,根据独白内容完成下列句子,每个空格不超过 3 个单词。独白读两遍。
1. When the water of Angel Falls , it forms a cloud of fine spray(水雾).
2. Angel Falls was named after called Jimmy Angel.
3. To see Angel Falls, you need to and then walk through the green forest.
4. The best time to visit Angel Falls is from when there is more rain.
5. We need to protect this wonderful waterfall and for future generations(后代).

1. hits the rocks
2. a pilot
3. take a boat
4. June to December
5. its environment