Page I
Page 2:
分层作业一：1-3 CCA
分层作业二：
1. found 2. owner 3. pay 4. police
5. spend 6. return
Page 6：
分层作业一：
1. If you talk about her family, she will talk up a storm.
2. Although he’s nearly 80, he is still very active.
3. Actually, it is not snowing now.
分层作业二：1-4 ACDB
Page II
小试牛刀：
1. Before we move to Mars, we need to solve these problems.
2. In order to survive on Mars, humans need different kinds of food.
3. It is not easy to build warm houses on Mars.
4. I will research how to have enough water to drink on Mars.
5. Without enough water and food, humans can’t live on another planet.
6. I will work hard to make my dream come true.
Page III
1-4 BDBD
5. Every night he had a sound sleep.
6. You don’t have to work hard for food and clothes.
7. Even so, he still could not sleep well.
8. As soon as the day broke, he got up and started to study.
9. He started to doubt whether he locked the front door before leaving for work.
Page IV
Day 1: CCCA Day 2: BBCD Day 3: CAC
Day 4:
1. They might have been lip-synching during their concert in Shanghai.
2. At least five of the songs in the concert were lip-synched.
3. A half-open microphone.
4. They should feel shameful.
5. No, it doesn’t.
Day 5: 1-5 DCAAD 6-10 CBBBD
