Page I
Pages 4-5:
I. 1-3 bac
III. 1. The streets soon emptied once/
when the rain started.
2. I struggled to keep my balance on my new skates.
3. She runs about 15 kilometers a day on average, no matter the weather.
Page 6:
III. 1. due to 2. longer 3. produce
4. sticking to 5. change 6. factors
Page II
任务型阅读：AGBDC
Page III
Comprehension test:
1-3 DBC
Vocabulary in use:
1. Let’s host some events to celebrate your birthday.
2. Watching science shows can spark his curiosity about the world.
3. In studies, it’s best to work hard rather than take shortcuts.
4. I want to sign up for the book club because it can broaden my understanding of different stories and characters.
Page IV
Day 1: ABB
Day 2: BADB
Day 3: CABCC
Day 4:
1. widely discussed; easy to understand
2. (the study of) solar wind and solar storms
3. he contributed to its creation
4. with little astronomy knowledge
5. space; science
Day 5: 1-5 CBACB
6-10 CADDB
11-12 AD
