视频目录：
7.1 酸性溶液和碱性溶液（第1课时）
7.1 酸性溶液和碱性溶液（第2课时）
7.2 几种常见的酸和碱（第1课时）
7.2 几种常见的酸和碱（第2课时）
7.2 几种常见的酸和碱（第3课时）
7.3 盐 化学肥料（第1课时）
7.3 盐 化学肥料（第2课时）
7.3 盐 化学肥料（第3课时）
8.1 金属矿物与金属冶炼（第1课时）
8.1 金属矿物与金属冶炼（...
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视频目录：
1.3 走进化学殿堂（第1课时）
1.3 走进化学殿堂（第2课时）
2.2 组成物质的元素（第1课时）
2.2 组成物质的元素（第2课时）
2.3 构成物质的微粒（第1课时）
2.3 构成物质的微粒（第2课时）
2.4 纯净物组成的表达方式（第1课时）
2.4 纯净物组成的表达方式（第2课时）
2.4 纯净物组成的表达方式（第3课时）
3.1 多组分的空气
3....
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小学英语6年级上册科普版课堂教学视频
视频目录
Lesson1 Are you going to have a birthday party
Lesson2 What are you going to do tomorrow
Lesson3 It will be sunny this Sunday
Lesson4 What kind of books will you buy
Lesson5 Revision
Lesson6 It's on the fifth floor
Lesson7 What's the date today
Lesson8 Merry Christmas
...
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小学英语5年级上册科普版课堂教学视频
视频目录
Lesson 1 What is she doing
Lesson 2 Don't be late next time
Lesson 3 A computer has a keyboard
Lesson 4 Does Jim like swimming
Lesson 5 What does he like
Lesson 6 Revision
Lesson 7 What would you like
Lesson 8 Would you like some potatoes
Lesson 9 How many cakes do yo...
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小学英语4年级上册科普版课堂教学视频
视频目录
Lesson1 We can dance
Lesson2 What's on the desk
Lesson3 Is this your bag
Lesson4 Is he your brother
Lesson5 What can you see
Lesson6 Revision
Lesson7 Is she a doctor or a nurse
Lesson8 What's the time
Lesson9 How many horses can you see
Lesson10 Where is my dog
Less...
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小学英语3年级上册科普版课堂教学视频
视频目录
Lesson1 I am a cat
Lesson2 Are you Mr Dog
Lesson3 Nice to meet you
Lesson4 What's your name
Lesson5 How old are you
Lesson6 Revision
Lesson7 Is it a bird
Lesson8 What's this
Lesson9 What colour is the cap
Lesson10 How are you
Lesson11 How do you do
Lesson12 Revision
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小学英语2年级上册科普版课堂教学视频
视频目录
Lesson1 Where is my dress
Lesson2 How many pens
Lesson3 How old are you
Lesson4 Revision
Lesson5 Are these chicks
Lesson6 What are these
Lesson7 She has two big eyes
Lesson8 Revision
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小学英语1年级上册科普版课堂教学视频
视频目录
Lesson1 Hello
Lesson2 Good morning
Lesson3 Stand up,please
Lesson4 Revision
Lesson5 Are you Tom
Lesson6 What's your name
Lesson7 How are you
Lesson8 Revision
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小学英语六年级下册科普版课堂教学视频
视频目录
Lesson1 I'm not feeling well
Lesson2 Did you play basketball yesterday
Lesson3 Did you go boating last Sunday
Lesson4 What did you do last Saturday
Lesson5 Revision
Lesson6 Is there a library near here
Lesson7 Where do the tigers come from
Lesson8 who are you going to...
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小学英语五年级下册科普版课堂教学视频
视频目录
Lesson1 May I spsak to Mary
Lesson2 We mustn't cross the street now
Lesson3 How many pupils are there
Lesson4 Where do you live
Lesson5 What do you do
Lesson6 Revision
Lesson7 It's seven thirty-five
Lesson8 What day is it today
Lesson9 Do you always have lunch at twe...
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