答案：1. museum 2. trip 3. piece 4. waste
5. machine 6. step 7. road 8. create
9. record 10. explore

答案：1. Did you see anything at the science museum
yesterday?
2. There was a space exhibition.
3. Did Teng Fei give the tourist the right
directions last week?
4. Did you go on a school trip a week ago?
5. How was your weekend?

答案：1. We went to the theatre to watch a show.
2. We saw the plant make dirty water clean again.
3. I got on the wrong bus. I left my book on the
bus too.
4. Many people back then worked hard to
create what we have today.
5. Every grain comes from hard work.

答案：One possible version:
Saturday, 20 June
Today my parents drove me to my
grandmother's home in the countryside. The
weather was fine. We sang and laughed all
the way.
In front of my grandmother's house, there
were many flowers. We enjoyed the flowers and
took pictures there. I also fed the animals and
picked the peaches. The peaches there were really
delicious. Finally we helped my grandmother cook.
Although we were tired this day, we
were very happy.