第二课时第一题答案
1 | 2 | 3 | 4 | 5 | 6 | 7 |
A | B | C | A | B | B | B |
第二课时第二题答案
1 | 2 | 3 | 4 | 5 |
T | F | F | T | F |
第二课时第三题答案
1. excited
2. are, make
3. is cooking
4. are talking
5. to see
6. useful, use, to clean
7. many, is, much, waste
8. to make
9. reuse, to make
10. makes
第二课时第四题答案
1. What does that sign mean?
2. What makes the streets messy and dirty?
3. What can we do to keep our city clean?
4. How to protect the Earth?
5. What makes the air dirty?
6. What are you going to do this afternoon?
第二课时第五题答案
1 | 2 | 3 | 4 | 5 | 6 | 7 |
F | G | B | E | C | B | A |