Unit 4 The Earth 地球
第一课时 Vocabulary 词汇
基础作业
1. the solar system
2.the Earth
3. clouds
4.field
5.rice
6. animals
7. pollution
8. mountain
II.
1. amazing/amazed
2. protection
3.reaches
4. solution
5.exploration/explorer
6. freezing/frozen
7. pollution
8. harmful/harmless
9.disappear
10. beginning
拓展作业
III.
1. pollution
2. provides
3. burns4. fields
5.energy
6.important
7. height
8. kilometres
9. catches
10. problems
第二课时 Reading 朗读
基础作业
1. provide sb, with sth
2.on Earth
3. be covered by
4. the solar system
5.as far as I know
6. the North Pole
7.millions of
8. learn about
9. take care of
10. in height
II.
1. planet
2.fields
3. forests
4. deserts
5. ways
6. millions
7. provides
8.energy
9. supports
10. explore
拓展作业
III.
1.C 2.D 3.A 4.B
第三课时 Grammar 语法
基础作业
1. Chinese  Japanese  Americans
2. factories
3. potatoes
4. is  bread
5. mice
II.
1. are  buses
2. aren't any
3. Are there any
4. How many
5. How much
拓展作业
III.
2. There is a set of furniture.
3. There are four bunches of keys.
4. There is a team of football players
5. There are six pairs of socks
6. There are two bowls of soup.
IV.
1. is
2. cities
3. ways
4. are
5. fruit
6. showers
7. Japanese
8. washer
9.is
10. habits
第四课时 Writing 写作
1. People often leave rubbish here and there, and this pollutes the Earth.
2. Driving cars or burning things pollutes the air.
3. If we put polluted water into the rivers or seas, this will kill the animals in the water/this will cause theanimals in the water to die
4. We must stop polluting behaviours and work together to protect the Earth.
II.省略
拓展作业
III
I. Factories put waste into rivers
2. We must stop polluting the Earth
3. It is important to protect the Earth for our future.
4. Don't throw away shopping bags, and you can use them next time
5. There are fewer and fewer fish in the sea each year.
IV.省略
第五课时 Interdisciplinary Learning 跨学科学习
1-5 ACBAC   6-10 AACAC
II.
1-5 BDBCD
拓展作业 省略