Unit 7 Celebrate New Year's day——The understanding of hour、minutes and seconds 庆元旦——时、分、秒的认识 The party begins now! 联欢会现在开始！ The beginning of the first program 第1个节目开始时刻 The beginning of the tenth program 第10个节目开始时刻 What questions can you ask? 你能提出什么问题？ Cooperative exploration 合作探索 1. When did the party start? 2. 联欢会什么时间开始的？ It started at 8:15. 8时15分开始的。 The clock face has 12 large squares and 60 small squares. 钟面上有12个大格，60个小格。 A minute hand makes one minute, and the hour hand makes one hour. The minute hand goes 60 small grid, the hour hand goes a big grid. 分针走1小格是1分钟，时针走1 大格是1小时。分针走60个小格，时针走一大格。 1 hour = 60 minutes 1时＝60分 I know! Look at the hour hand first, then the minute hand. When the hour hand has passed 8, the minute hand has gone 15 squares, so it is 8:15 我知道啦！先看时针，再看分针。时针过了8，分针走了15个小格，就是8时15分。 Eight fifteen could also be written as 8:15 8时15分也可以写成8:15 2. When did the first program begin? How many minutes later than the start of the party? 1. 第1个节目什么时间开始的？与联欢会开始的时间相差几分钟？ The first program began at 8:16, and the get-together began a minute later. 第一个节目8时16分开始的，与联欢会开始的时间相差1分钟。 How long is a minute? 1分钟有多长？ It takes me about a minute to write 12 equations. 我写12道算式大约需要1分钟。 My pulse beats 86 per minute. 我的脉搏1分钟跳86下。 3. What time does the fourth program begin? 1. 第4个节目什么时间开始的？ The fourth programme starts at 8:30. 第4个节目8时30分开始的。 Eight thirty can also be called half past eight. 8时30分也可以说成8时半。 4. Can you write down the beginning time of the tenth program and the beginning time of the twentieth? Compare that, and what do you find? 1. 你能写出第10个节目与第20个节目开始的时间吗？比较一下，你发现了什么？ I found that there was exactly an hour between the tenth programme and the twentieth. 我发现第10个节目与第20个节目正好间隔1小时。 How long is an hour? 1小时有多长？ The time of Windmill is about 40 minutes...... 《大风车》的时间大约是40分钟...... "News Network" is 30 minutes, plus 30 minutes is an hour 《新闻联播》的时间是30分钟，再加上30分钟就是1小时。 Lesson 2 The last show: a school song chorus. 最后一个节目：校园歌曲大联唱。 The wonderful song is over...... 精彩的歌曲联唱结束了...... What questions can you ask? 你能提出什么问题？ Cooperative exploration 合作探索 1. How long did it take to sing the campus songs? 1. 校园歌曲大联唱一共用了多长时间？ It starts at 10:35 and ends at 10:55 10：35 开始 10:55结束 The minute hand went 4 big squares...... 分针走了4个大格...... Fifty five minus thirty five is twenty twenty minutes . 55－35＝20 共20分钟。 Lesson 3 Ten seconds to go. 还差10秒。 The New Year bell is about to ring! 10, 9, 8, 7...... 新年的钟声就要敲响了！10、9、8、7...... What questions can you ask? 你能提出 什么问题？ Cooperative exploration 合作探索 How long is 1 second? 1. 1秒有多长？ Let's discuss it. 让我们讨论一下吧。 The time to say "hello" is about one second. 问声“你好”的时间大约是1秒。 I run 5 meters in time is about one second. 我跑5米的时间大约是1秒。 The ticking time of the alarm clock is about one second. 闹钟“嘀嗒”一声的时间大约是1秒。 The minute hand goes 1 small grid, the second hand goes how much? 1. 分针走1小格，秒针走多少？ I found that the minute hand went 1 small grid, the second hand went 60 small grid, is just a circle. 我发现，分针走1小格，秒针走了60小格，正好是一圈。 The second hand moves 1 square is 1 second. 秒针走1小格是1秒。 I know that a minute is as long as 60 seconds. 我知道1分和60秒一样长。 1 minute = 60 seconds 1分＝60秒 |
Powered by Discuz! X3.4
Copyright © 2001-2020, Tencent Cloud.
