四、从方框中选择适当的单词或短语并用其正确形式填空。每个单词或短语限用一次。
bear, beach volleyball, boat, bag, belong to, body, bite through, bright, bad, because of
1. Look! Some children are ______ on the river.
2. Her ______ smile lights up the room and makes us feel warm.
3. — Where is Jack?
— He is playing ______ with his friends now.
4. This book ______ Mike. His name is on it.
5. ______ the heavy rain, we didn't go hiking last weekend.
6. I saw some animals like pandas, wolves and ______ in the zoo.
7. The boy put some apples into a big ______ just now.
8. Emma is good at English, but she is ______ at maths.
9. The mouse ______ the net and ran away quickly.
10. Listening to music can make your mind and ______ relax.

1. boating 2. bright 3. beach volleyball 4. belongs to 5. Because of 6. bears 7. bag 8. bad 9. bit through 10. body

用括号内所给单词的正确形式填空。
1. Please keep ______ in the room now. If you need to read out, please read ______. (quiet)
2. The girl looks ______. She has a lot of friends at school. (friend)
3. Tom is a very ______ boy. He studies all the subjects ______. However, his brother is a ______ boy, and he always leaves his books at home. (care)
4. — When did you start your trip?
— We were ______ busy last week, so we started it this Monday. (real)
5. Linda has ______ eating habits and she often eats ______. (good)
6. — These days I am very tired. How can I feel ______?
— You can go somewhere ______. (relax)
7. — What do you think of Mary?
— She is a nice and ______ girl. She always answers the phone ______ when I call her. (polite)
8. The boy didn't speak anything. He just walked very ______. (slow)
9. They ______ play ping-pong three times a week. (usual)
10. When he is walking along the road, ______ a cat runs toward him. (sudden)

1. quiet; quietly 2. friendly 3. careful; carefully; careless 4. really 5. good; well 6. relaxed; relaxing 7. polite; politely 8. slowly 9. usually 10. suddenly