高二英语下学期Unit13课件 人教版 课件VIP免费

Period 4Period 4Period 4Period 4Integrating skillsIntegrating skills How much do you know about them? How much do you know about them? Is the economy there well-developed or Is the economy there well-developed or not?not? Which city is the most developed? Why?Which city is the most developed? Why?Can you tell what map it is? Where is it?Can you tell what map it is? Where is it?Is the water here salty or fresh?Is the water here salty or fresh?What’s the place where river and the ocean What’s the place where river and the ocean meet?meet?Find the definition of an Find the definition of an estuaryestuaryAn estuaryAn estuary is the body of water where a river is the body of water where a river meets the ocean. Salt water from the ocean and fresh meets the ocean. Salt water from the ocean and fresh water from the river mix together in an estuary. This water from the river mix together in an estuary. This mixing of fresh and salt water creates a unique mixing of fresh and salt water creates a unique environment filled with life of all kindsenvironment filled with life of all kinds －－ a zone a zone between the land and sea. between the land and sea. An estuaryAn estuary is the body of water where a river is the body of water where a river meets the ocean. Salt water from the ocean and fresh meets the ocean. Salt water from the ocean and fresh water from the river mix together in an estuary. This water from the river mix together in an estuary. This mixing of fresh and salt water creates a unique mixing of fresh and salt water creates a unique environment filled with life of all kindsenvironment filled with life of all kinds －－ a zone a zone between the land and se...