Unit1SectionAGrammarFocus课件～2024-2025学年人教版（2024）七年级英语下册

UNIT 1 Animal Friends In this unit, you will: talk about different animals. introduce your favourite animal. use adjectives to describe animals. explore the meaning of caring for animals. Why do you like animals? SECTION A BIG Question Why are animals important? Grammar: Wh-questions; Plurals; Adjectives Warming up 1 SECTION A Q: When do most lions hunt? a. At dusk during clear weather b. At night and during storms c. In the early hours of the morning when it is foggy outside d. Mid-day when the sun is the brightest Take a quiz to discover how much you know about wild animals! Q: Which animal is the largest land animal on Earth? a. Hippopotamus b. Elephant c. Rhinoceros d. Sun bear Q: Why do spotted hyenas (斑鬣狗) sleep in pools of water at night? a. They can breathe underwater b. They love swimming c. To stay cool d. To hide from predators Q: When do most lions hunt? Q: Which animal is the largest land animal on Earth? Q: Why do spotted hyenas sleep in pools of water at night? Look at the questions. What words are used to ask about specific information? giraffe Find all the animals eagle ox donkey butterfly fish penguin bear snake wolf sheep fox eagle ________ fox ________ giraffe ________ mouse ________ penguin ________ shark ________ sheep ________ snake ________ whale ________ bear ________ bus ________ bench ________ brush ________ box ________ buzz ________ butterfly ________ donkey ________ zoo ________ potato ________ wolf ________ sheep ________ fish ________ deer ________ goose ________ ox ________ eagles foxes giraffes mice penguins sharks sheep snakes whales bears 3c Make the nouns in the box plural. buses benches brushes boxes buzzes butterflies donkeys zoos potatoes wolves sheep fish deer geese oxen Let’s write. 9 How to make plurals? 名词变复数的规则变化： 1. 一般情况下直接加-s。 eagle ________ giraffe ________ penguin ________ shark ________ snake ________ whale ________ bear ________ eagles giraffes penguins sharks snakes whales bears Let’s observe and learn. 10 bus ________ bench ________ brush ________ box ________ buzz ________ buses benches brushes boxes buzzes How to make plurals? 名词变复数的规则变化: 2. 以s，z，x，sh，ch结尾的名词，需在后面加-es。 Let’s observe and learn. 11 butterfly ________ donkey ________ butterflies donkeys How to make plurals? 名词变复数的规则变化： 3. 以辅音字母加y结尾的名词，变y为i再加-es；元音字母加y结尾的名词直接加-s。 Let’s observe and learn. 12 How to make plurals? zoo ________ potato ________ 名词变复数的规则变化: 4. 以o结尾的词多数加-s。元音字母加o结尾的名词一概加-s。少数以o结尾的名词后需加-es，如potato-potatoes(土豆)、tomato-tomato (西红柿)。 zoos potatoes Let’s observe and learn. 13 sheep ________ fish ________ deer ________ mouse ________ goose ________ ox ________ sheep fish deer mice geese oxen 名词变复数的不规则变化 有少数单词单复数同形。 如sheep-sheep (绵羊)、fish-fish (鱼)、deer-deer (鹿)、Chinese-Chinese (中国人)、Japanese-Japanese (日本人)。 2. 特殊变化。 如man-men(男人)，woman-women(女人)，goose-geese(鹅)，foot-feet(脚)，tooth-teeth(牙齿)；child-children(孩子)，ox-oxen(牛)，mouse-mice(鼠)。 How about these ones? Let’s observe and learn. 14 _____ it have sharp teeth? Yes, _____ _____. It's a _____ shark! it does Does Yes, you are right! 15 Review What引导的特殊疑问句 What is the weather like in Shanghai? What does he look like? 句型一 What+一般疑问句? What+助动词+主语+动词原形十其他？ What+be动词+主语? 句型二 What sports do you play? What colour do you like? What+名词+一般疑问句? What+名词+助动词+主语+动词原形十其他？ Review Where引导的特殊疑问句 Where+一般疑问句? Where+助动词+主语+动词原形十其他？ Where+be动词+主语? —Where is my pen?—It's on the desk. —Where do you come from?—I come from China. why引导的特殊疑问句结构是怎样的？该如何回答呢？ Where引导的特殊疑问句 Why don't you like tigers? why对原因进行提问，意为“为什么”。其答语多用because来引导。 结构：Why+助动词+主语+动词原形+其他? Why do you like pandas? Because they're kind of interesting. Because they're really scary. because的用法 —Why can't he sleep? 你为什么睡不着呢？ —Because it’s noisy outside. 因为外面很吵。 because是连词，意为“因为，由于”，表示某个行为发生的原因。 回答why提出的问题 We stay at home because it is raining. =It is raining, so we stay at home. because与so不能同时出现在一句话中 因为下雨了，所以我们待在家里。 Plural Noun 一般情况下，在可数名词后加-s 清辅音后的s读/s/ 浊辅音或元音后的s读/z/ /dɒɡz/ /dɒɡ/ dog dogs shark sharks /ʃɑːk/ /ʃɑːks/ Plural Noun 以s, x, ch, sh结尾的可数名词，加-es watch watches es读/ɪz/ box boxes /wɒtʃ/ /ˈwɒtʃɪz/ /bɒks/ /ˈbɒksɪz/ Plural Noun 以o结尾的可数名词，加-s或者-es /pə'teɪtəʊz/ s/es读/z/ radio /'reɪdiəʊ/ potato /pə'teɪtəʊ/ radios /'reɪdɪəʊz/ potatoes Plural Noun 以f/fe结尾的可数名词，多数是将f/fe变成v，再加-es knives ves读/vz/ leaf /liːf/ leaves /liːvz/ knife /naɪf/ /naɪvz/ Plural Noun 名词复数的不规则变化 fish, deer, sheep, Chinese, Japanese ... child children foot feet tooth teeth man men woman women 单复数同形 Summary 名词复数的构成 规则变化 不规则变化 一般在单数形式后面加-s 以s、x、ch、sh等结尾的词，词尾加-es 以辅音字母加y结尾的词，变y为i，再加-es 以f或fe结尾的词，把f或fe变成v，再加-es 以o结尾的词，无生命的加-s，有生命的加-es man→men, woman→women, child→children, sheep→sheep, mouse→mice, foot→feet book→books, cap→caps, job→jobs, bag→bags, key→keys class→classes, box→boxes, watch→watches family→families, strawberry→strawberries knife→knives, wife→wives, leave→laeves tomato→tomatoes, hero→heroes radio→rdios, photo→photos $$