U6 How do we measure time 寒假预习（讲义）-2025-2026学年沪教版英语四年级下册

U6 How do we measure time? 单元核心知识点讲解 （一）重点单词 1. 时间单位类：day 天；白昼；白天、night 夜晚；晚上、hour 小时、minute 分钟、second 秒、month 月；月份、year 年 2. 相关动作与物品类：measure 测量、tell 告诉；辨别、know 知道；了解、travel 旅行、exercise 运动；锻炼、dream 梦想；做梦、clock 时钟、watch 手表、sundial 日晷、hourglass 沙漏 3. 描述类：busy 忙碌的、different 不同的、same 相同的、around 围绕；环绕 4. 常用表达类：question 问题、time 时间、moment 时刻、activity 活动 （二）重点短语 1. measure time 测量时间2. tell the time 看时间；报时3. at the same time 同时 4. get ready for 为……做准备5. do exercise 做运动6. go to work 去上班 7. have breakfast/lunch/dinner 吃早/午/晚餐8. around the world 全世界 9. keep up with time 跟上时间节奏 （三）重点句型 1. 询问时间：--What time is it? --It's... 例：—What time is it in Beijing? 北京现在几点了？ —It's seven o'clock in the morning. 早上七点。 解析：这是询问具体时间的常用句型，回答用“It's + 时间”，时间表达可直接用数字或“数字 + o'clock”（整点）、“half past + 数字”（半点）等。 2. 询问他人正在做什么：--What are you doing? --I am (doing)... / --What is he/she doing? --He/She is (doing)... 例：—What are you doing now? 你现在正在做什么？ —I am having lunch. 我正在吃午饭。 —What is your father doing? 你爸爸正在做什么？ —He is going to work. 他正在去上班的路上。 解析：现在进行时用于询问和描述正在进行的动作，结构为“be动词（am/is/are）+ 动词-ing形式”，第一人称用am，第三人称单数用is，第二人称和复数用are。 3. 表达不同地方的时间差异：People in different countries may have different time. 例：It's morning in Beijing, but it's night in London. 北京是早上，而伦敦是晚上。 解析：用“but”连接两个对比分句，体现不同地区的时间差异，“may”表示“可能”，增加表述的委婉性。 4. 描述过去的计时方式：People used to use... to tell the time. 例：People used to use sundials to tell the time. 过去人们常用日晷来计时。 解析：“used to do sth.”表示“过去常常做某事”，“use sth. to do sth.”表示“用某物做某事”。 （四）语音重点 发音组合：tr, dr 例词：tr：tree 树、train 火车、travel 旅行、triangle 三角形；dr：drink 喝、drive 驾驶、dream 梦想、drum 鼓 单元练习题 一、将下列单词按划线部分发音归类（填序号）。 A. tree B. drink C. train D. drive E. travel F. dream G. drum H. triangle 1. trip：________________ 2. dress：________________ 二、根据句意及首字母提示填空。 1. There are 24 h______ in a day and 60 minutes in an hour. 2. We can use a clock or a watch to t______ the time. 3. People in different countries have d______ time at the same moment. 4. My family is very b______ in the evening. We all have many things to do. 5. A y______ has 12 months. Spring, summer, autumn and winter are four seasons in a year. 三、短语翻译。 1. measure time ______ 2. tell the time ______ 3. at the same time ______ 4. around the world ______ 5. do exercise ______ 四、选择合适的单词/短语填空（注意形式变化）。measure tell travel exercise busy different same dream 1. Can you ______ me what time it is now? 2. People use clocks to ______ time in daily life. 3. My parents ______ to work by bus every day. 4. We usually ______ in the park in the morning to keep healthy. 5. Our school life is ______ but happy. 6. The twins look the ______, but their hobbies are ______. 7. His ______ is to travel around the world when he grows up. 五、单项选择。 （ ）1. —What time ______ it now? —It's three o'clock in the afternoon. A. am B. is C. are （ ）2. My mother ______ breakfast in the kitchen now. A. makes B. making C. is making （ ）3. People in different countries may have ______ time. A. Same B. different C. the same （ ）4. —What ______ your sister doing? —She is doing her homework. A. does B. is C. are （ ）5. We used to ______ sundials to tell the time. A. use B. using C. used （ ）6. It's seven o'clock in Beijing. ______ it's eleven o'clock in London. A. And B. But C. So 六、用所给单词的适当形式填空。 1. Look! They ______ (have) a PE lesson on the playground. 2. My father ______ (not watch) TV now. He is reading a book. 3. We can ______ (travel) to many places around the world. 4. She ______ (dream) of becoming a teacher when she was a little girl. 5. Does your brother often ______ (exercise) in the morning? 七、句图匹配。 A. B. C. D. E. （ ）1. People use a sundial to tell the time. （ ）2. The girl is looking at her watch and telling the time. （ ）3. The family is having dinner together. （ ）4. The boy is doing exercise in the park. （ ）5. The clock shows three o'clock. 八、按要求完成句子。 1. It is eight o'clock in the morning.（对划线部分提问） ______ ______ is it in the morning? 2. She is doing her homework now.（改为一般疑问句） ______ she ______ her homework now? 3. They travel to Beijing every year.（用now改写句子） They ______ ______ to Beijing now. 4. People use clocks to measure time.（改为一般过去时） People ______ clocks to measure time in the past. 5. My sister is reading a book in the room.（对划线部分提问） ______ is your sister ______ in the room? 九、选择合适的句子补全对话。 A: Hi, Mike! Where are you going?A. What time is it there? B. I'm going to visit my pen pal in New York. C. What are they doing now? D. Is it morning there? E. How interesting! B: 1. ______ A: Wow! New York is far from here. 2. ______ B: It's three o'clock in the afternoon in New York now. A: 3. ______ B: No, it's not. It's afternoon. A: 4. ______ B: My pen pal and his family are having afternoon tea. A: 5. ______ I want to have a pen pal too. 十、根据短文内容，完成下列任务。 Time is very important in our life. We use different things to measure and tell time. A day has 24 hours, an hour has 60 minutes and a minute has 60 seconds. People in different countries have different time at the same moment. For example, when it's 7:00 a.m. in Beijing, it's 11:00 p.m. of the previous day in New York, and it's 12:00 noon in London. In the past, people used sundials and hourglasses to tell the time. Sundials use the shadow of the sun to show time, but they don't work on cloudy days. Hourglasses use sand to count time. Now we usually use clocks and watches. They are easy to carry and can tell the time accurately. 任务一：阅读短文，判断正（T）误（F）。 （ ）1. An hour has 60 seconds. （ ）2. Hourglasses use sand to tell the time. 任务二：阅读短文，补全句子（每空一词）。 1. When it's 7:00 a.m. in Beijing, it's 11:00 p.m. in New York and 12:00 noon in ______. 2. Sundials don't work on ______ days because they use the shadow of the sun. 任务三：阅读短文，回答问题。 1. How many hours are there in a day? ___________________________________ 2. What do people use to tell the time now? ___________________________________ 参考答案 一、1. A、C、E、H 2. B、D、F、G 二、1. hours 2. tell 3. different 4. busy 5. year 三、1. 测量时间 2. 看时间；报时 3. 同时 4. 全世界 5. 做运动 四、1. tell 2. measure 3. travel 4. exercise 5. busy 6. same；different 7. dream 五、1. B 2. C 3. B 4. B 5. A 6. B 六、1. are having 2. isn't watching 3. travel 4. dreamed/dreamt 5. exercise 七、1. E 2. D 3. B 4. C 5. A 八、1. What time 2. Is；doing 3. are traveling 4. used 5. What；doing 九、1. B 2. A 3. D 4. C 5. E 十、任务一：1. F 2. T 任务二：1. London 2. cloudy 任务三：1. There are 24 hours in a day. 2. People usually use clocks and watches to tell the time now. 学科网（北京）股份有限公司 $