Unit 5 Amazing nature Understanding ideas(Grammar)课件2024-2025学年外研版英语七年级下册

Amazing nature Unit 5 After completing the unit, you will be able to: use words and expressions in the unit to talk about natural wonders. use comparatives and superlatives to describe natural places. explain the importance of the natural world. 思维品质 学习能力 文化意识 语言能力 教学目标 学生能够用本课时的核心词汇和句型，能够正确使用形容词比较级和最高级对对事物进行对比和描述。 通过教学活动的开展，能锻炼学生的逻辑思维能力；引导学生主动发现语法规律，提升逻辑思维能力。 运用对比、归纳等方法自主学习形容词比较级和最高级的语法知识，培养独立思考和自主探究的学习能力。 通过本节课的学习，学生能够了解祖国的大好河山，了解自然的雄伟壮丽，拓展视野，增强自豪感。 学生能够发现并总结比较级与最高级的语法规则；能够正确使用本课时语法完成练习。 学生能够在活动中，用所给句式和形容词、副词的原级、比较级、最高级描述自然风景。 01 02 教学重难点 01 Warming up Read the sentences from the reading passage and summarise the grammar rules. (a) It is famous for the world’s highest mountain. (b) But this area is also full of the most amazing colours in nature. (c) The plateau is quieter than the big cities. 5 What can you find? Read the sentences from the reading passage and summarise the grammar rules. (a) It is famous for the world’s highest mountain. (b) But this area is also full of the most amazing colours in nature. (c) The plateau is quieter than the big cities. 5 Now find more sentences with these structures in the reading passage. superlative forms superlative forms 02 Grammar 比较级表示“更………”,用于两者之间的比较 英语中，表示比较时,将形容词或副词变成比较级的形式,然后在后面用than引出所比较的对象。 This book is more interesting than that one. 这本书比那本书更有趣。 My sister is taller than me. 我姐姐比我高。 形容词的比较级和最高级的构成规则 形容词的比较级和最高级的构成 1) 规则变化 构成 原级 比较级 最高级 一般单音节词和部分双音节词在词尾加-er或-est high高的 great巨大的 slow慢的 higher greater slower highest greatest slowest 以不发音的e结尾的单音节词和少数以le结尾的双音节词，只在词尾加-r或-st nice 好的 large大的 able有能力的 nicer larger abler nicest largest ablest 形容词的比较级和最高级的构成 1) 规则变化 以"辅音字母+y"结尾的双音节单词，将词尾的y变为i，再 加-er或-est easy容易的 busy忙的 early早的 easier busier earlier easiest busiest earliest 重读闭音节词，只有一个辅音字母结尾时，要双写该辅音字母，再加-er或-est big大的 hot 热的 thin细的；瘦的 bigger hotter thinner biggest hottest thinnest 多音节词和部分双音节词在原级前加more, most careful细心的 beautiful漂亮的 more careful more beautiful most careful most beautiful 副词的比较级和最高级的构成 单音节副词的比较级是在副词后面加上-er构成的，最高级是在副词后面加上-est构成的。 near nearer nearest 多音节副词（多以-ly结尾）的比较级是在副词的前面加上-more构成的。最高级是在副词前面加上-most构成的。 warmly, more warmly, most warmly 副词的比较级和最高级的构成 有些副词的比较级和最高级形式是不规则的： well-better-best little-less-least much-more-most badly-worse-worst far-farther (further)-farthest(furthest) 最高级用于三者或三者以上的人或物进行比较，副词最高级前面的the可省可不省，并且在句尾往往加上介词in或of短语。 Jack studies (the) hardest in his class. 杰克在他班上学习最努力。 常见形容词、副词最高级不规则变化 原级 比较级 最高级 good 好的/well健康的；好 better best bad坏的/badly坏/ill有病的 worse worst old老的 older/elder oldest/eldest much/many 许多 more most little少的 less least far远的/地 farther/further farthest/furthest A比B...... “A+be+形容词比较级 +than + B” “A+实义动词+副词比较级+than+B” I am older than you. 我比你大。 I run faster than Jim. 我跑得比吉姆快。。 比较级常用句型 在某一范围内A比其他任何一个人/物都…… A+be+形容词比较级+than+any other+可数名词单数+in... Tom is thinner than any other boy in his class. 汤姆比他班里的其他任何男孩都瘦。 比较级常用句型 A是两者中较……的 A+be+the+形容词比较级+of the two... Tom is the taller of the two boys. 汤姆是这两个男孩中较高的那个。 This book is the more interesting of the two. 这本书是两本中更有趣的那本。 比较级常用句型 越……,就越…… the + 比较级…, the + 比较级… The more careful you are , the fewer mistakes you will make. 你越仔细，你犯的错误就越少。 The harder you study, the better you will perfori in the exams. 你学习越努力，在考试中就会表现得越好。 比较级常用句型 越来越…… 比较级 + and + 比较级 more and more+多音节和部分双音节 It's getting colder and colder. 天气越来越冷了。 The more careful you are, the fewer mistakes you will make. 你越仔细，你犯的错误就越少。 比较级常用句型 A和B,……更…? 疑问词+be+形容词比较级, A or B? 疑问词+行为动词+副词比较级, A or B? Which is bigger, the apple or the orange? 苹果和橙子，哪一个更大？ How does he run faster, John or Peter? 约翰和彼得，他更像谁那样跑得快？ 比较级常用句型 最……的……之一 one of the + 形容词最高级 + 可数名词复数 Tom is one of the most intelligent students in our class. 汤姆是我们班最聪明的学生之一。 第几……的…… the + 序数词 + 形容词最高级 + 可数名词单数 This is the third highest mountain in the world. 这是世界上第三高的山峰。 最高级常用句型 03 Exercises Complete the facts about wonders in China. The Yellow River is ________________ than the Yangtze River. 6 shorter The Yellow River: 5,464 km The Yangtze River: 6,300 km Complete the facts about wonders in China. Mount Taishan is high. Mount Emei is ________________. Mount Qomolangma is the ________________. 6 higher highest Mount Taishan: 1,532.7 m Mount Emei: 3,079.3 m Mount Qomolangma: 8,848.86 m In Zhejiang province, there’s a famous natural wonder with amazing tides. Do you know what it is? The Qiantang River is 1 ______________ (short) than the Yangtze or Yellow rivers. But it’s still one of the 2 ______________ (famous) rivers in China. It’s famous for its tides. Complete the passage with the correct form of the words in brackets. 7 shorter most famous Usually it’s a 3 _____________ (slow) river. But when the tides come, the water runs much 4 _____________ (fast). Many tides are two metres 5 _____________ (high). But the 6 _____________ (high) tides can be ten metres high! Complete the passage with the correct form of the words in brackets. 7 slow faster high highest Work in pairs. 8 Talk about the most beautiful natural place in your opinion. Use the words and expressions from the reading passage and the Useful expressions to help you. Work in pairs. 8 Talk about the most beautiful natural place in your opinion. Use the words and expressions from the reading passage and the Useful expressions to help you. • In my opinion, the most beautiful place is… • It is famous for… • It is like… • Words can’t express my love for… • It is one of… in the world. 1. Lily is ________ than her sister. A. healthy B. healthier C. healthiest D. the healthiest 2. Do ________ exercise, and you'll be much ________. A. much; strongest B. much; stronger C. more; strongest D. more; stronger 3. That was the ________ film of the year. A. exciting B. more exciting C. most exciting D. most excited Exercise 4. It is getting ________ and ________ after June. A. hot; hot B. hot; hotter C. hotter; hotter D. hotter; hottest 5. —The doctor told me not to eat too much junk food, but I find it difficult. —The doctor is right. ________ junk food you eat, ________ you will be. A.The less; the healthier B.The less; the more healthier C.The more; the healthier D.The more; the healthiest Exercise 04 Summary Grammar 副词的比较级和最高级的构成 最高级常用句型 比较级常用句型 形容词的比较级和最高级的构成 比较级和最高级 05 Homework Homework Review the keywords and sentence structures in today’s lesson. 2. Preview the next lesson. SEE YOU NEXT CLASS! Lavf58.29.100 Packed by Bilibili XCoder v2.0.2 $$