coast

coast的音标是[ˈkəʊst]。基本意思是“岸，滨”，通常指海、河等的边缘。速记技巧是：注意字母o和s的发音。o通常发/əʊ/，s通常发/s/。当s位于词首或词中，且前面元音发音时值较长或重读时，s一般也发/ʊ/。记住这个发音规律，就能更快速地记住单词的拼写。

coast的英文词源：

coast这个词源自于古英语，其词根可以追溯到古日耳曼语中的“kost”，意为“海岸”。

变化形式：

coast作为名词时，其复数形式为“coasts”，形容词形式为“coastal”。

相关单词：

1. coastline：海岸线，表示海岸的长度和宽度。

2. beach：海滩，指的是靠近海岸的沙滩。

3. seacoast：海滨，指的是靠近海洋的地方。

4. coastal：沿海的，表示与海岸相关的。

5. costal：同上，表示与海岸相关的形容词。

6. coastalguard：海岸警卫队，负责保护海岸线和防止非法捕鱼等行为。

7. coastalzone：海岸带，指的是海洋和陆地之间的交界区域。

8. coastalengineering：海岸工程学，指的是研究海岸地形变化和海平面上升等问题的学科。

9. coastalreservoir：海岸水库，指的是在海岸线附近修建的水库，用于调节水资源。

10. coastalprotection：海岸保护，指的是通过修建堤坝等方式来保护海岸线的措施。

以上这些单词都与coast有着密切的联系，反映了其作为海岸相关词汇的含义和用法。

常用短语：

1. on the coast

2. by the coast

3. along the coast

4. off the coast

5. in the coastal area

6. coastal town

7. coastal environment

例句：

1. We can see the ocean on the coast from here.

2. She likes to walk along the coast on Sundays.

3. The ship was lost off the coast of Africa.

4. The coastal area is rich in natural resources.

5. The coastal town is famous for its beautiful beaches.

6. The destruction of the coastal environment is a serious problem.

7. We must protect the coastline from further erosion.

英文小作文：

Coastal Life

Living by the coast is a unique experience, with its beautiful beaches, clear waters and unique marine life. People in coastal towns and villages enjoy a relaxed and leisurely lifestyle, with plenty of time to enjoy the sea, sunshine and nature. From fishing to beachcombing, there is always something to do along the coast.

However, the coastal environment is also under threat from human activities, such as pollution, development and climate change. We must protect our coastline and marine life to ensure that future generations can also enjoy this wonderful natural resource. With proper conservation measures in place, the coastal environment can be preserved for future generations to enjoy and explore.