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Part ALet's talkThis is our new text. Let's read and understand it.The first ...

Part ALet's talkThis is our new text. Let's read and understand it.The first sentence tells us that the nature park is beautifulThe second sentence tells us that there are many mountains in the nature parkThe third sentence tells us that there are also rivers and forests in the nature parkThe fourth sentence tells us that the mountains are green all year roundThe last sentence tells us that people love to go hiking and camping in the nature parkLet's learnWe will learn some new words in this part.hill 小山、丘陵mountain 山river 河流forest 森林field 田野hiking 徒步旅行、远足camping 野营、露营beautiful 美丽的nature 大自然park 公园Let's spellWe will learn the new sound "ea" in this part.ea 在单词 "head" 中发 [ed] 的音在单词 "bread" 中发 [e] 的音Part BLet's talkWe will read and understand the following text.The first sentence tells us that the nature park is beautifulThe second sentence tells us that there are many mountains in the nature parkThe third sentence tells us that there are also rivers and forests in the nature parkThe fourth sentence tells us that the mountains are green all year roundThe last sentence tells us that people love to go hiking and camping in the nature parkLet's learnWe will learn some new words in this part.hill 小山、丘陵mountain 山river 河流forest 森林field 田野hiking 徒步旅行、远足camping 野营、露营beautiful 美丽的nature 大自然park 公园 "ea" 的发音有两个可能的音比如在 "head" 中发 [ed]，在 "bread" 中发 [e]。在本课中，"sea" 发 [i:] 的音。试着读一读这些词组： "in the sea"， "tea and bread"， "the head of a bed"， "bread and head"。你发现什么规律了吗？在单词中的 "ea" 通常发 [i:] 的音，但在单词的末尾，如 "head"，它通常发 [ed] 的音。但是也有特例，比如 "bread" 中的 "ea" 发 [e] 的音。这些规则可以帮助我们更好地理解和使用英语单词