What do you know about the sea? We know that it looks very pretty when the sun is shining on it. We also know that it can be very rough when there is a strong wind. What other things do we know about it?
The first thing to remember is that the sea is very big. When you look at the map of the world you will find there is more water than land. The sea covers three quarters of the world.
The sea is also very deep in some places. It is not deep everywhere. Some parts of the sea are very shallow. But in some places the depth of the sea is very great. There is one spot, near Japan, where the sea is nearly 11 kilometers deep! The highest mountain in the world is about 9 kilometers high. If that mountain were put into the sea at that place, there would be 2 kilometers of water above it! What a deep place!
If you have swum in the sea, you know that it is salty. You can taste the salt. Rivers, which flow into the sea, carry salt from the land into the sea. Some parts of the sea are saltier than other parts. There is one sea, called the Dead Sea, which is very salty. It is so salty that swimmers cannot sink! Fish cannot live in the Dead Sea!
In most parts of the sea, there are plenty of fishes and plants. Some live near the top of the sea. Others live deep down. There are also millions of tiny living things that float in the sea. These floating things are so small that it is hard to see them. Many fish live by eating these.
The sea can be very cold Divers who go deep down in the sea, know this. On the top the water may be warm. When the diver goes downwards, the sea becomes colder and colder. Another thing happens. When the diver goes deeper, the water above presses down on him. It squeezes him. Then the diver has to wear clothes made of metal. But he cannot go very deep. Some people who wanted to go very deep used a very strong diving ship! They went down to the deepest part of the sea in it. They went down to a depth of eleven kilometers!
练习:
1. When does the sea look beautiful?
A) When it is calm
B) When the weather is fine
C) When there is a strong wind
D) When there is a storm
2. How much of the earths surface does land cover?
A) 15%
B) 25%
C) 30%
D) 45%
3. Why does the author cite the sea somewhere near Japan?
A) To show that the sea in some places is very deep.
B) To show that the sea in some places is very shallow
C) To show that its depth is 9 kilometers greater than the height of the highest mountain
D) To show that its depth is 11 kilometers greater than the height of the highest mountain
4. Which of the following statements about the Dead Sea is NOT true?
A) There are plenty of fishes in it.
B) It is a safe place for swimmers.
C) It is extremely salty.
D) No fish can be found in it.
5. Why cant people go very deep in the sea?
A) Because the deepest part of the sea is very cold.
B) Because the deepest part of the sea is very rough.
C) Because the pressure of the water at great depths is unendurable.
D) Because fierce fish usually live there.
Key: BBAAC
2015年职称英语考试备考:六读三练四注意
Tips:2015年职称英语考试记忆单词小窍门
职称英语考试如何快速复习通过2015年考试
美国的国旗日(Flag Day)中英文介绍
职称英语理工类A级完型填空例题解析
2015年职称英语考试技巧—“小”技巧也可争高分
2013年职称英语考试理工类完形填空练习2
2015职称英语6种题型学习方法详解
Happy Father's Day (父亲节英语介绍)
Marmoset(绒猴)
2015年职称英语考试冲刺阶段必备攻略
职称英语考试经验及心得
2015年职称英语考试答题顺序及答题时间控制
Meet the Cast 我们的演员和动画角色
2015年职称英语考试通关重要法宝:温故知新
Dragon Boat Festival(端午节)特色英文介绍
抓住一切零散时间备考2015年职称英语考试
动物们的奇趣“父亲”节(中英文)
攻克2015年职称英语完形填空的最佳解题思路
国际儿童节的由来(中英文)
The Chingles 英语小精灵 Episode 1 第一集
2015年职称英语考试备考实用技巧五则
The Chingles Episode Two 英语小精灵第二集
各国的儿童节(中英文)
2013职称英语理工类A级完形填空练习3
牛人分享:2015年职称英语考场答题必看21点
World Environment Day(世界环境日)中英文详细介绍
Emperor penguin(皇企鹅)
International Children' Day in Czechoslovakia in 1959
2015职称英语考前半个月:做好6件事 轻松进考场
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |