Unit 2 Stay Healthy - Grammar Focus同步练习2025-2026学年人教版英语八年级下册

Unit 2 Stay Healthy — Section A Grammar Focus

Ⅰ. 单项选择（共15小题，每小题1分，共15分）

 

从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。

 

1. —I’ve got a toothache, Mum.

—Oh, you ______ eat too many sweets. It’s bad for your teeth.

A. shouldn’t  B. needn’t  C. should  D. need

 

2. To live a healthier life, we ______ not only study hard but also do regular exercise to keep strong.

A. mustn’t  B. may  C. needn’t  D. should

 

3. —The movie is really boring. ______ we go for a walk in the park instead?

—Good idea! Fresh air will make us feel better.

A. Could  B. Must  C. Might  D. Should

 

4. —______ I take this seat by the window, madam?

—Sorry, I’m afraid you ______. It’s reserved for an elderly passenger.

A. Can; couldn’t  B. Could; couldn’t  C. Could; can’t  D. Could; can

 

5. David ______ a bad stomachache after eating cold food. He ______ lie down and rest at once instead of working.

A. has; shouldn’t  B. have; should  C. have; shouldn’t  D. has; should

 

6. —I feel dizzy and tired these days.

—You ______ stay up late anymore. You need at least 8 hours’ sleep every night.

A. must  B. mustn’t  C. should  D. can

 

7. —______ we wear masks in crowded places now?

—No, you don’t have to, but it’s still a good habit to protect yourself.

A. Must  B. Can  C. May  D. Should

 

8. You ______ touch the broken glass with your bare hands. It’s sharp and may cut your fingers.

A. must  B. mustn’t  C. should  D. can

 

9. —I forgot to take my umbrella. It’s raining heavily outside.

—Don’t worry. You ______ borrow mine. I don’t need it right now.

A. can  B. must  C. should  D. need

 

10. —______ I help you carry the heavy box, Grandma?

—That’s very kind of you, dear. I really need a hand.

A. Must  B. Can  C. Should  D. Need

 

11. Teenagers ______ spend too much time on mobile phones. It’s bad for their eyes and study.

A. should  B. shouldn’t  C. must  D. can

 

12. You ______ finish the homework today. The deadline is tomorrow morning, so you can do it after dinner.

A. mustn’t  B. needn’t  C. can’t  D. shouldn’t

 

13. —I have a fever and a sore throat. What should I do?

—You ______ go to see a doctor and take some medicine on time.

A. can  B. may  C. should  D. must

 

14. —______ I use your dictionary for a while? I need to look up a new word.

—Sure, go ahead. But please return it to me before class.

A. Must  B. Should  C. May  D. Need

 

15. We ______ wash our hands frequently to prevent the spread of viruses, especially before meals.

A. should  B. shouldn’t  C. mustn’t  D. can

Ⅱ. 用括号中所给单词的适当形式填空（共10小题，每小题1分，共10分）

 

1. Lily has a runny nose and a cough, so she decides to go to the hospital by ______ (she) after school.

 

2. When Jimmy has a high fever, his mother always takes ______ (he) temperature first before giving him medicine.

 

3. Jenny cut ______ (she) left hand with a knife yesterday, and she put some medicine and a bandage on the cut at once.

 

4. Mike thinks he should take good care of ______ (him) by eating healthy food and doing exercise every day.

 

5. Although Leo and Tom’s parents aren’t at home on weekends, the two boys can still look after ______ (they) well.

 

6. You should learn to solve problems by ______ (you) instead of asking others for help all the time.

 

7. The little girl can dress ______ (she) without her mother’s help now. She’s growing up fast.