Ⅰ. 用括号内所给单词的适当形式填空。
1. The Great Wall is one of the greatest (wonder) of the world.
2. It's necessary for us (protect) the endangered animals.
3. With the rapid (develop) of science and technology, we can explore more secrets of nature easily.
4. The (die) of the ancient trees made the local people very sad because they had stood there for hundreds of years.
5. The weather in the mountain area is one of the (changeable) in the country, so we need to take different clothes.
6. Many (climb) try to climb Mount Qomolangma every year.
7. The team (successful) crossed the desert after three days of difficult travel.

1. wonders 2. to protect
3. development 4. death
5. most changeable 6. climbers
7. successfully

Ⅱ. 用方框中所给短语的适当形式填空。
sea level in size on earth square kilometre the bottom of
1. The sunlight can hardly reach the deep sea, so it's very dark there.
2. The Sahara Desert is about 9,000,000 .
3. The surface of the Dead Sea is about 400 metres below .
4. Pandas are one of the most lovely animals and they mainly live in China.
5. These two boxes look similar, but they are different —one is much bigger than the other.

1. the bottom of 2. square kilometres
3. sea level 4. on earth 5. in size

Ⅲ. 按要求完成句子。
1. Qomolangma is $\underline{8,848.86\ metres}$ high.（对画线部分提问）
is Qomolangma?
2. He is too young to join the army.（用 so ... that ... 改写句子）
He is young he join the army.
3. The Yangtze River is longer than the Yellow River.（改为同义句）
The Yellow River is not the Yangtze River.
4. Many animals depend on plants for food and shelters in the forest.（改为同义句）
Many animals depend on plants for food shelters in the forest.
5. Town Cinema is the biggest cinema in town.（改为同义句）
Town Cinema is cinema in town.

1. How high 2. so; that; can't 3. as long as
4. as well as 5. bigger than any other