内容正文:
人教版(PEP)五年级上册英语 Unit 4 Healthy habits
语法专项易错点练习
情态动词 should / shouldn’t / can / can’t 与祈使句(健康习惯)
2026—2027学年上学期英语五年级上册(人教版PEP)
【语法易错点速览】
(1) 情态动词“三不变”:should / shouldn’t / can / can’t 后必须接动词原形,没有人称和数的变化。如 He should go to bed.(√),不能说 He should goes to bed.;She can swim.(√),不能说 She can swims.。
(2) should 表示建议,意为“应该”,否定式 shouldn’t = should not,意为“不应该”;can 表示能力或许可,意为“能;可以”,否定式 can’t = cannot,意为“不能;不可以”。
(3) 请求许可用 Can I ...?,肯定回答 Yes, you can. / Sure.,否定回答 No, you can’t. / I’m afraid not.;给别人提建议用 You should / shouldn’t ...。
(4) 祈使句表示建议或命令,以动词原形开头(Brush your teeth twice a day.);否定祈使句用 Don’t + 动词原形(Don’t check your phone in bed.),please 可放在句首或句末。
(5) 一般现在时表示习惯:频率副词 always(总是)> usually(通常)> often(经常)> sometimes(有时)> never(从不),常与 every day、twice a day、at the weekend 等连用;like doing sth. 表示“喜欢做某事”。
(6) too many 后接可数名词复数(too many sweet drinks),too much 后接不可数名词(too much honey / too much time);be good for 表示“对……有好处”;keep + 宾语 + 形容词表示“使……保持某种状态”,如 It keeps your teeth healthy.。
一、用 should / shouldn’t / can / can’t 填空(每小题1分,共15分)
1. You ________ eat more green vegetables. They are good for you.
2. You ________ eat too much candy. It’s bad for your teeth.
3. —________ I watch a TV show now, Mum? —No, I’m afraid not.
4. My eyes are tired. I ________ see the words on the blackboard clearly.
5. You ________ brush your teeth twice a day, in the morning and in the evening.
6. Mike has a bad cold. He ________ go to school today.
7. Students ________ check their phones in class.
8. —________ you swim? —Yes, I can. I swim every week.
9. You ________ rest your eyes between classes.
10. Don’t worry. You ________ ask the doctor for help.
11. We ________ drink enough water every day.
12. You ________ play on the phone so often. It hurts your eyes.
13. I’m free this afternoon, so I ________ play football with you.
14. If you don’t feel well, you ________ see a doctor.
15. Sam ________ go to bed late. He needs enough sleep.
二、用括号中动词的正确形式完成下列健康建议(每小题1分,共10分)
提示:肯定祈使句以动词原形开头(句首大写);否定祈使句用 Don’t + 动词原形。
1. ________ (eat) healthy food every day.
2. ________ (not check) your phone in bed.
3. ________ (drink) enough water, please.
4. ________ (not eat) too much candy before going to bed.
5. ________ (brush) your teeth twice a day.
6. ________ (not drink) too many sweet drinks.
7. ________ (rest) your eyes after reading for a long time.
8. ________ (wash) your hands before meals.
9. ________ (not watch) TV for too long.
10. ________ (take) a walk after dinner with your family.
三、用所给词的适当形式填空(每小题1分,共15分)
1. You should ______________ (exercise) every day to stay healthy.
2. Don’t ______________ (check) your phone so often.
3. Sam can’t ______________ (play) computer games on weekdays.
4. Mike should ______________ (go) to bed before ten o’clock.
5. David likes ______________ (watch) TV, but he doesn’t spend too much time on it.
6. You should brush your teeth ______________ (two) a day.
7. Brushing your teeth every day ______________ (keep) your teeth healthy.
8. You shouldn’t ______________ (eat) too much honey.
9. ______________ (not drink) too many sweet drinks.
10. What do you usually ______________ (have) for breakfast?
11. David usually ______________ (sleep) about eight hours a day.
12. Sometimes I only ______________ (get) six hours’ sleep at night.
13. We often ______________ (play) football together after school.
14. You should eat ______________ (little) candy and more green vegetables.
15. Eating green vegetables ______________ (be) good for our health.
四、单项选择(每小题2分,共30分)
( )1. You ______ eat less candy. It’s bad for your teeth.
A. shouldn’t B. should C. can’t D. don’t
( )2. —Can I play on Mum’s phone? —No, you ______.
A. can B. should C. can’t D. aren’t
( )3. ______ your hands before meals, please.
A. Wash B. Washes C. Washing D. To wash
( )4. You ______ check your phone in bed.
A. don’t B. shouldn’t C. aren’t D. doesn’t
( )5. —What should I do then? —You should ______ your eyes.
A. rest B. rests C. resting D. to rest
( )6. David ______ often eat green vegetables.
A. don’t B. doesn’t C. isn’t D. not
( )7. ______ too many sweet drinks. They are bad for your teeth.
A. Not drink B. Don’t drink C. Doesn’t drink D. Can’t drink
( )8. I have PE every day ______ Monday to Friday.
A. from B. on C. in D. at
( )9. You should brush your teeth ______ a day.
A. two B. twice C. second D. the second
( )10. There is ______ honey in the jar. Don’t eat too much.
A. too many B. too much C. much too D. a few
( )11. Sam drinks ______ sweet drinks every week.
A. too much B. too many C. much too D. a little
( )12. Eating fish ______ good for your eyes.
A. is B. are C. be D. am
( )13. —______ do you usually spend your free time? —I often read books.
A. What B. How C. When D. Where
( )14. If you don’t feel well, you ______ see a doctor.
A. should B. shouldn’t C. can’t D. aren’t
( )15. —______ I take this seat? —Sure, please.
A. Am B. Do C. Can D. Does
五、句型转换(每小题2分,共20分)
1. You should eat less candy.(改为否定句)
You ______________ ______________ less candy.
2. Sam can play computer games.(改为一般疑问句并作否定回答)
______________ Sam ______________ computer games? —______________, he ______________.
3. Brush your teeth twice a day.(改为否定句)
______________ ______________ your teeth twice a day.
4. You should rest your eyes.(对划线部分提问)
______________ ______________ I ______________?
5. David usually sleeps eight hours a day.(对划线部分提问)
______________ ______________ hours does David usually sleep a day?
6. I usually eat hamburgers.(对划线部分提问)
______________ do you usually ______________?
7. You should check your phone so often.(改为否定句)
You ______________ ______________ your phone so often.
8. We should drink enough water every day.(改为一般疑问句并作肯定回答)
______________ we ______________ enough water every day? —______________, we ______________.
9. Sam watches TV twice a week.(对划线部分提问)
______________ ______________ ______________ Sam watch TV?
10. You can’t play on the phone.(改为意思相同的否定祈使句)
______________ ______________ on the phone.
六、单句改错(每小题2分,共20分)
提示:每句均有一处语法错误,请找出并将正确答案写在横线上。
1. You should eats more vegetables every day.
改正:________________________________________________
2. Sam can plays computer games after dinner.
改正:________________________________________________
3. Doesn’t check your phone in bed.
改正:________________________________________________
4. You should brush your tooth twice a day.
改正:________________________________________________
5. David don’t often eat green vegetables.
改正:________________________________________________
6. Don’t drinks too many sweet drinks.
改正:________________________________________________
7. You shouldn’t to eat too much candy.
改正:________________________________________________
8. There is too many honey in the bottle.
改正:________________________________________________
9. Eating vegetables are good for your health.
改正:________________________________________________
10. Sam watches TV two time a week.
改正:________________________________________________
七、根据汉语提示完成句子(每小题2分,共20分)
1. 你应该每天吃健康的食物。
You ______________ ______________ healthy food every day.
2. 你不应该在床上看手机。
You ______________ ______________ your phone in bed.
3. 请每天刷两次牙。
Please ______________ your ______________ twice a day.
4. ——我现在可以看电视吗?——恐怕不行。
—______________ I watch TV now? —I’m ______________ not.
5. 你应该让眼睛休息一下,我们去散步吧。
You should ______________ your eyes. Let’s ______________ a walk.
6. 不要吃太多糖果,这对你的牙齿不好。
Don’t eat ______________ ______________ candy. It’s bad for your teeth.
7. 大卫有时一天只睡六个小时。
David sometimes ______________ only six ______________ a day.
8. 我喜欢和朋友们一起踢足球。
I like ______________ football ______________ my friends.
9. 吃绿色蔬菜对我们的健康有好处。
______________ green vegetables ______________ good for our health.
10. 你多久刷一次牙?
______________ ______________ do you brush your teeth?
八、完形填空(每空1分,共10分)
阅读短文,从每题所给的 A、B、C 三个选项中选出最佳答案。
Mike is a schoolboy. He likes __1__ TV and computer games very much. He __2__ them for a long time every day. He __3__ eats green vegetables, and he eats too __4__ candy. He goes to bed very late.
Today Mike’s eyes hurt and he __5__ see clearly. His mother takes him to see a __6__. The doctor says, “You __7__ rest your eyes. Don’t __8__ your phone so often. You should __9__ early and exercise every day. Then your eyes will be __10__ soon.”
( )1 A. watch B. watching C. watches
( )2 A. plays B. play C. playing
( )3 A. often B. usually C. never
( )4 A. much B. many C. lot
( )5 A. can B. can’t C. isn’t
( )6 A. doctor B. teacher C. farmer
( )7 A. should B. shouldn’t C. can’t
( )8 A. check B. checks C. checking
( )9 A. go to bed B. goes to bed C. going to bed
( )10 A. bad B. fine C. sad
参考答案与解析
一、用 should / shouldn’t / can / can’t 填空
1. should
2. shouldn’t
3. Can
4. can’t
5. should
6. can’t
7. shouldn’t
8. Can
9. should
10. can
11. should
12. shouldn’t
13. can
14. should
15. shouldn’t
二、用括号中动词的正确形式完成下列健康建议
1. Eat
2. Don’t check (否定祈使句用 Don’t + 动词原形。)
3. Drink
4. Don’t eat (否定祈使句,Don’t 后用原形 eat。)
5. Brush
6. Don’t drink (Don’t 后接动词原形 drink。)
7. Rest
8. Wash
9. Don’t watch (否定祈使句 Don’t watch。)
10. Take
三、用所给词的适当形式填空
1. exercise (should 后接动词原形。)
2. check (Don’t 后接动词原形。)
3. play (can’t 后接动词原形。)
4. go (should 后接动词原形。)
5. watching (like doing sth. 喜欢做某事。)
6. twice (twice a day 一天两次,two 变为 twice。)
7. keeps (主语 Brushing your teeth 是单数的动作,谓语用第三人称单数 keeps。)
8. eat (shouldn’t 后接动词原形。)
9. Don’t drink (否定祈使句 Don’t + 动词原形,句首大写。)
10. have (助动词 do 后接动词原形。)
11. sleeps (主语 David 是第三人称单数,usually 提示一般现在时,用 sleeps。)
12. get (主语是 I,sometimes 提示一般现在时,动词用原形 get。)
13. play (主语是 We,often 提示一般现在时,动词用原形 play。)
14. less (与后面的 more 并列,little 的比较级是 less,less candy 更少的糖。)
15. is (动名词短语 Eating green vegetables 作主语,视为单数,be 动词用 is。)
四、单项选择
1. B (表示“应该少吃糖”,用 should。)
2. C (Can I ...? 的否定回答用 No, you can’t.。)
3. A (祈使句以动词原形开头。)
4. B (表示“不应该”,用 shouldn’t。)
5. A (should 后接动词原形 rest。)
6. B (主语 David 是第三人称单数,一般现在时否定用 doesn’t + 动词原形。)
7. B (否定祈使句用 Don’t + 动词原形。)
8. A (from Monday to Friday 从周一到周五。)
9. B (twice a day 一天两次。)
10. B (honey 是不可数名词,用 too much。)
11. B (drinks 是可数名词复数,用 too many。)
12. A (动名词短语作主语视为单数,用 is。)
13. B (How do you spend your free time? 你怎样度过空闲时间?)
14. A (表建议“应该去看医生”用 should。)
15. C (Can I ...? 用来请求许可。)
五、句型转换
1. shouldn’t eat
2. Can; play; No; can’t
3. Don’t brush
4. What should; do(划线部分 rest your eyes 是“做的事”,用 What should I do? 提问)
5. How many(划线部分 eight hours 是数量,hours 可数,用 How many)
6. What; eat(划线部分 hamburgers 是物,用 What 提问,助动词 do 后用原形 eat)
7. shouldn’t check
8. Should; drink; Yes; should
9. How often does(划线部分 twice a week 表频率,用 How often;主语 Sam 三单,借助 does)
10. Don’t play(改为否定祈使句 Don’t + 动词原形)
六、单句改错
1. eats → eat (should 后接动词原形。)
2. plays → play (can 后接动词原形。)
3. Doesn’t → Don’t (否定祈使句用 Don’t + 动词原形,不随人称变化。)
4. tooth → teeth (“刷牙”用复数 teeth,brush one’s teeth。)
5. don’t → doesn’t (主语 David 是第三人称单数,否定用 doesn’t。)
6. drinks → drink (Don’t 后接动词原形。)
7. shouldn’t to eat → shouldn’t eat (情态动词 shouldn’t 后直接接动词原形,不加 to。)
8. many → much (honey 是不可数名词,用 too much。)
9. are → is (动名词短语作主语视为单数,be 动词用 is。)
10. time → times (“两次”用 twice 或 two times,此处 two 后用 times。)
七、根据汉语提示完成句子
1. should; eat
2. shouldn’t check
3. brush; teeth
4. Can; afraid
5. rest; take
6. too; much
7. sleeps; hours
8. playing; with
9. Eating; is
10. How; often
八、完形填空
1. B (like doing sth.。)
2. A (主语 He 三单,every day 用一般现在时 plays。)
3. C (坏习惯是“从不吃蔬菜”,用 never。)
4. A (candy 不可数,用 too much。)
5. B (眼睛疼所以“看不清”,用 can’t。)
6. A (see a doctor 看医生。)
7. A (提建议用 should。)
8. A (Don’t 后接动词原形 check。)
9. A (should 后接动词原形 go to bed。)
10. B (be fine soon 很快好起来。)
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