（ ）4. Bad luck! My arm _______ and my fingers _______ too.
A. hurts；hurt B. hurts；hurts C. hurt；hurts

4. A

（ ）5. —Doctor，I have a bad cold. What should I do?
—You should _______.
A. drink some cold water B. go to hospital C. take some medicine

5. C

（ ）6. The boy _______ a headache and I _______ a cough.
A. has；has B. has；have C. have；has

6. B

五 看图，完成对话。
Dentist：What’s wrong with you?
Mike：I _______________________.
Dentist：Do you like eating _______?
Mike：Yes，I do.
Dentist：You _______ eat too many sweets. You _______
brush your _______ every day.
Mike：OK. Thanks.

have a toothache; sweets; shouldn't; should; teeth

六 新趋势 学科融合 阅读短文，选择正确的答案。
Teeth have a big job. They help us chew food. They help us talk. Some teeth are round(圆的). Some are sharp(尖的). We use round back teeth to grind(磨碎) food. This makes the food easy to swallow(吞咽). We use sharp front teeth to bite into food. Brushing keeps teeth clean. We should brush teeth in the morning and before bedtime. Visit the dentist twice a year. Dentists clean our teeth. They check for cavities. A cavity is a part of a tooth that is not healthy(健康的). A dentist can fix that. Kids have 20 teeth. They fall out. New ones grow in. Adults have about 32 teeth. It is important to take good care of our teeth.
（ ）1. Teeth can’t help us _______.
A. chew food B. look C. talk
（ ）2. We use round back teeth to grind food because _______.
A. this makes the food easy to eat
B. this makes the food bad to swallow
C. this makes the food easy to swallow
（ ）3. How many times should we brush teeth a day?
A. 1. B. 2. C. 3.
（ ）4. The underlined word “cavity” means “_______” in Chinese.
A. 生病 B. 牙龈 C. （龋齿的）洞
（ ）5. Kids’ _______ teeth fall out. About _______ new ones will grow in.
A. 32；32 B. 32；20 C. 20；32

1. B 2. C 3. B 4. C 5. C