Ⅳ.在下面横线上填入适当的句子,补全对话。
A: Welcome to our game show! It's all about geography. 1.
B: It's Mount Qomolangma, and it's the highest mountain in the world.
A: Correct! 2.
B: It's 8848. 86 metres.
A: 3.
B: It's the Sahara Desert.
A: Right! 4. .
B: It's about 9,000,000 square kilometres.
A: That's right! What's the lowest place on earth?
B: 5.
A: Well done!

Ⅳ. 1. What's the highest mountain in the world?
2. How high is it?
3. What's the biggest desert in the world?
4. How big is it?
5. It's the Dead Sea.

Ⅰ.根据句意和首字母提示,用本单元所学单词填空。
1. The lake is very d, and it's too dangerous to swim here.
2. Fish usually swim near the b of the river to find food.
3. We need to r pandas before doing our science project.
4. The little girl loves to d into the swimming pool to swim on hot summer days.
5. It's u to see snow in this warm city during November.

Ⅰ.1.deep 2.bottom 3.research 4.dive 5.unusual

Ⅱ.用括号内所给词的适当形式填空。
1. Fendouzhe, a Chinese submersible, dived (deep) into the Mariana Trench than many others.
2. He is (research) how to protect the environment.
3. I had an (usual) experience of cooking dinner for my family for the first time.
4. I found my lost pen at the (bottom) of my schoolbag.
5. We learned that the (deep) of the Mariana Trench is about 11,000 metres.

Ⅱ.1.deeper 2.researching 3.unusual 4.bottom 5.depth