Unit4 What do we buy？ Extend（讲义）-2025-2026学年沪教版英语四年级上册

Unit 4 What do we buy? ⭐Extend知识点清单 一、核心词汇 1. 故事角色与场景 · farmer（农民）、cow（奶牛）、wife（妻子） · dance（舞会）、dress（连衣裙） · milk（牛奶，名词 / 动词）、sell（卖）、buy（买） · food（食物）、need（需要）、want（想要） 2. 动作与状态词 · give（给予）、every day（每天） · have an idea（想出一个主意） · angry（生气的） · buy back（买回） 二、核心句型 1. 故事主线句型（叙事） · Farmer Thomas has a cow. It gives milk every day. （农民托马斯有一头奶牛，它每天产奶。） · His wife, Rosa, sells the milk. （他的妻子罗莎卖牛奶。） · One day, Thomas asks Rosa to go to a dance. （一天，托马斯邀请罗莎去参加舞会。） · "No," says Rosa, "I don't have a dress." （“不，” 罗莎说，“我没有连衣裙。”） · Thomas has an idea. He sells the cow and buys a beautiful dress for Rosa. （托马斯有了一个主意。他卖掉奶牛，给罗莎买了一条漂亮的连衣裙。） · "Look at the new dress, Rosa. We can go to the dance now," he says. Rosa is angry! （“看这条新裙子，罗莎。我们现在可以去舞会了，” 他说。罗莎很生气！） · "Our cow gives us milk every day. We sell the milk and buy food! We can't eat the dress. We need our cow!" （“我们的奶牛每天给我们产奶。我们卖牛奶买食物！我们不能吃裙子。我们需要我们的奶牛！”） · Thomas buys his cow back. （托马斯把奶牛买了回来。） 2. 单元大主题呼应句型 · Do you buy things you need or things you want? Why? （你买你需要的东西还是想要的东西？为什么？） 参考回答：I buy things I need, because they are necessary for my life. / I buy both, but I buy needs first. 三、语法知识点 1. 一般现在时（描述日常 / 客观事实） · 主语为第三人称单数时，动词变 -s/-es 形式： · give → gives, sell → sells, ask → asks, say → says, buy → buys 例：It gives milk every day. / He sells the cow. 2. 一般现在时的否定句 · 主语 + don't/doesn't + 动词原形 例：I don't have a dress. / We can't eat the dress. 3. 并列句与因果逻辑 · 用 and 连接并列动作：He sells the cow and buys a dress. · 用 because 表达原因（拓展）：We need the cow because it gives us milk. 4. 购物核心语法（单元回顾） · buy sth. for sb.（给某人买某物）：buys a beautiful dress for Rosa · need/want 区分：need（需要，必需品） vs want（想要，非必需品） ⭐Extend同步练 一、选词填空（每空 3 分，共 30 分） 从方框中选择合适的单词，补全句子，每词限用一次。 farmer, cow, sell, buy, dress, milk, need, want, angry, idea 1. Farmer Thomas has a ______. It gives ______ every day. 2. Rosa ______ the milk to buy food. 3. Rosa doesn't have a ______, so she can't go to the dance. 4. Thomas has an ______. He sells the cow and ______ a beautiful dress for Rosa. 5. Rosa is ______ because they ______ the cow, not the dress. 6. We should buy things we ______, not just things we ______. 二、单项选择（每题 4 分，共 20 分） ( ) 1. The cow ______ milk every day. A. give B. gives C. giving ( ) 2. Thomas sells the cow and buys a dress ______ Rosa. A. for B. to C. with ( ) 3. —______ does Rosa say? —She says, "I don't have a dress." A. What B. How C. Why ( ) 4. We can't ______ the dress. We need our cow. A. eat B. eats C. eating ( ) 5. Thomas ______ his cow back at last. A. buy B. buys C. buying 三、情景交际（每题 5 分，共 20 分） 从方框中选择合适的句子，补全对话，每句限用一次。 A. We need our cow. B. I don't have a dress. C. He sells the cow and buys a dress. D. Do you buy things you need or want? 1. —Why can't Rosa go to the dance? —______ 2. —What does Thomas do? —______ 3. —Why is Rosa angry? —______ 4. —______ —I buy things I need, because they're important for life. 四、课文填空（每空 3 分，共 30 分） 根据课文内容，补全短文，每空一词。 Farmer Thomas has a ______. It ______ milk every day. His wife Rosa ______ the milk. One day, Thomas asks Rosa to go to a dance. Rosa says, "I ______ have a dress." Thomas has an ______. He ______ the cow and ______ a dress for Rosa. Rosa is angry. She says, "We ______ the milk to buy food. We can't eat the dress. We ______ our cow!" Thomas buys his cow ______. 参考答案 一、选词填空（每空 3 分，共 30 分） 1. cow; milk 2. sells 3. dress 4. idea; buys 5. angry; need 6. need; want 二、单项选择（每题 4 分，共 20 分） 1. B 2. A 3. A 4. A 5. B 三、情景交际（每题 5 分，共 20 分） 1. B 2. C 3. A 4. D 四、课文填空（每空 3 分，共 30 分） 1. cow 2. gives 3. sells 4. don't 5. idea 6. sells 7. buys 8. sell 9. need 10. back 学科网（北京）股份有限公司 $