The Sea 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. 答案: BBAAC
剩女怎么了?单身妹子最讨厌的五句话
科比告别赛票价刷新历史 没有800美元别想看
科比退役信
泰国酒驾司机将被送往太平间工作
关于英语写作措辞的建议
阿里巴巴拟将橄榄球引进中国
老外直播试吃中国方便面全程:你喜欢哪款?
每周锻炼2.5小时可抵消终日久坐的危害
处女座适合什么工作?
美国独生子写给世界的一封信
装B神器 莎士比亚名句信手拈来
囧研究:这世界上到底是胖子多还是瘦子多?
点餐抓瞎?中国人学英语爆笑囧事
应对谷歌烧脑招聘面试题 你够聪明吗
养猫或引发心理健康问题
抖森以Loki身份客串天气预报:天都萌哭了
科比谢幕:看了家嫂写给他的信我们都哭了
牛津词典网站发布“愚人节新词”
英18岁情侣因战乱分离 72年后重逢前缘再续
你造吗?春天出生的你原来有这么多好处
赶走烦恼!教你如何摆脱负能量
福岛放射性野猪泛滥成灾
8句话告诉你:你是困在成人身体里的小盆宇
你的音乐偏好是如何体现个性特质的?
娶个聪明老婆防痴呆
日本隐形列车将于2018年问世
过来人给年轻人的11个人生忠告
自测:你有多少小心机?看看中了几枪
乐极生悲? 过度快乐 可能真的会心碎
女性单独外出的十大注意事项
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |