一、根据提示写单词。
1. v. 改进；改善→(三单)
2. n. 习惯→(复数)
3. n. 盐→adj. 咸的；含盐的
4. n. 体重；重量→v. 称……的重量
5. v. 造成；导致→(三单)
6. adj. 均衡的；平衡的→v. 使……平衡→n. 平衡
7. adj. 困倦的；想睡的→v. 睡觉→n. 睡眠

1. improve improves
2. habit habits
3. salt salty
4. weight weigh
5. cause causes
6. balanced balance balance
7. sleepy sleep sleep

二、用括号中所给单词的适当形式填空。
1. Chinese people have special feelings to (dragon).
2. There are always many sweet (moment) when we think of the life in our school.
3. It's not good to visit your friend first without (hold) a gift.
4. Now people like to send (message) through WeChat.
5. What you (buy) for your mother when you were in Beijing?
6. He often (have) supper at home. Yesterday he (have) supper at school.
7. I (cook) food for my family yesterday.
8. I used to (think) it was easy to get clean water.
9. I got on the wrong bus. I (leave) my book on the bus, too.
10. We walked along the mountain roads and (think) about the past.

1. dragons
2. moments
3. holding
4. messages
5. did buy
6. has had
7. cooked
8. think
9. left
10. thought