Finding the Direction and Location
How can you tell which direction? By day, look for the Sun. It is in the east in the morning and the west in the afternoon. At night, use the Big Dipper to help you find the North Star. It would be better to bring a compass because its needle always points north.
How do you know how far you have gone? You could count every step. Each step is about two feet. Youd better wear a pedometer which is a tool that counts steps. If you know where you started, which direction you are heading, and how far you have gone, you can use a good map to figure out exactly where you are.
Today there is a new way for travelers to figure out where they are. It is the GPS. It has 24 satellites that orbit the earth and constantly broadcast their positions. Someday you may carry a small receiver as you hike and use GPS to find out if you are there yet!
Useful Words and expressions:
1. dipper北斗七星
2. compass 罗盘
3. pedometer 步数计
4. GPS= Global Position System全球定位系统
5. orbit 轨道,绕轨道而行
6. receiver 接收器
2013年人教PEP版三下《Unit 2 My family》word版教学设计1
2013年人教PEP版三下《Unit 5 Where is my ruler》word版教学设计1
2013年人教PEP版三下《Unit 5 Where is my ruler》word版导学案
2013年人教PEP版三下《Unit 4 Do you like pears》word版教案1
2013年人教PEP版三下《Unit 4 Do you like pears》word版导学案
2013年人教PEP版三下《Unit 2 My family 》word版教学设计
2017人教PEP版英语五年级下册Unit 4《When is Easter》word全单元课时教案
2013年人教PEP版三下《Unit 4 Do you like pears》word版教学设计3
2013年人教PEP版三下《Unit 4 Do you like pears》word版教学设计2
2017人教PEP版英语五年级下册Unit 2《My Favourite Season》word全单元课时教案
2017人教PEP版英语四年级下册全册教案(共51页)
2013年人教PEP版三下《Unit 2 My family》word版教学设计
2017人教PEP版英语四年级下册《Recycle 1》导学案
2017人教PEP版英语六年级下册Unit 1《How tall are you》word导学案
2017人教PEP版英语五年级下册全册教案word版(共68页)
2017人教PEP版英语五年级下册全册导学案word版(共86页)
2017人教PEP版英语五年级下册Unit 1《My Day》word全单元课时教案
2013年人教PEP版三下《Unit 4 Do you like pears》教学设计(第二课时)
2013年人教PEP版三下《Unit 3 How many》word版教案 (第一课时)
2013年人教PEP版三下《Unit 1 Welcome back to school》word版导学案
2013年人教PEP版三下《Unit 3 How many》word版教案(第四课时)
2017人教PEP版英语五年级下册Unit 5《Whose dog is it》word全单元课时教案
2013年人教PEP版三下《Unit 2 My family》word版教学设计2
2017人教PEP版英语四年级下册Unit 2《What time is it》单元导学案
2017人教PEP版英语五年级下册Unit 6《Work quietly》word全单元课时教案
新课标人教版小学英语三年级下册全册教案
2013年人教PEP版三下《Unit 3 How many》word版导学案
2013年人教PEP版三下《Unit 2 My Family》word版教案
2017人教PEP版英语四年级下册Unit 5《My clothes》单元导学案
2013年人教PEP版三下《Unit 2 My Family》word版单元测试题及答案