九年级英语情态动词专项练习题（含答案）

情态动词专项练习题
一、核心知识点总结
（一）can
表体力/智力上的“能够、会”，可与be able to互换；将来时表能力用will be able to。
表口语化许可，否定式为can’t；提建议时用could语气更婉转。
仅用于否定句表推测，意为“一定不是”。
（二）may
表许可，比can更正式，否定式may not（按规定不许可）；回答May I... 否定用mustn’t（明确禁止）。
肯定句中表“可能”的推测，否定式may not；疑问句表“可能”需用can。
（三）must
表主观“必须”，否定式为needn’t/don’t have to（不必），而非mustn’t。
仅用于肯定句表极肯定推测，意为“一定、准是”。
与have to区别：must强调主观意愿，have to强调客观需求，有has to（三单）、had to（过去式）、will have to（将来时）变化。
（四）should
表建议、劝告，意为“应该”，可与ought to互换。
表义务、职责，强调“应当”做的正确之事。
（五）need
情态动词：仅用于疑问句、否定句，后接动词原形，否定式为needn’t，无人称和时态变化。
实义动词：后接名词、动名词（表被动，相当于need to be done）或to do，否定式为don’t/doesn’t/didn’t need to do。
二、专项练习题
（一）can相关
( ) 1．—______ you speak French I need someone to help with translation.
—Sorry, I can only speak Chinese and English.
A．Can B．Must C．Should
( ) 2．With the new software, we ______ finish the data analysis in half an hour.
A．can B．may C．need
( ) 3．This book ______ be Mike’s. He doesn’t like science fiction at all.
A．must B．can’t C．may
( ) 4．—Could we put off the meeting till next Monday
—Yes, we ______, but we have to inform everyone in advance.
A．can B．must C．should
( ) 5．If you keep practicing, you ______ be able to play the guitar very well.
A．will B．can C．may
( ) 6．You ______ park here. The sign says “No Parking”.
A．can’t B．mustn’t C．needn’t
( ) 7．—______ I use your phone to make a quick call Mine is out of power.
—Sure, here you are.
A．Must B．Can C．May
( ) 8．The little boy ______ swim across the river when he was only 8 years old.
A．can B．could C．may
( ) 9．This task ______ not be as difficult as it seems. Let’s try our best.
A．can B．must C．should
( ) 10．—Who sent this gift
—It ______ be Lily. She mentioned she would send me something.
A．can B．must C．may
（二）may相关
( ) 1．—______ I leave the classroom early I have a doctor’s appointment.
—Yes, you may, but please tell the teacher first.
A．Must B．May C．Should
( ) 2．The weather forecast says it ______ rain this afternoon, so take an umbrella with you.
A．may B．must C．can’t
( ) 3．You ______ not take photos in the museum. It’s against the rules.
A．may B．must C．need
( ) 4．—Is Tom coming to the party
—I’m not sure. He ______ have to work overtime.
A．may B．must C．should
( ) 5．______ it be true that the famous singer will visit our city next month
A．Can B．May C．Must
( ) 6．She ______ not be happy about the decision. Let’s talk to her gently.
A．may B．must C．can’t
( ) 7．—May I borrow your notebook for a few days
—No, you ______. I need it for my own study.
A．needn’t B．mustn’t C．can’t
( ) 8．You ______ choose any book from the shelf—they are all available for borrowing.
A．may B．must C．should
( ) 9．The missing cat ______ be hiding in the garden. Let’s look for it there.
A．may B．must C．can’t
( ) 10．—______ we use the office printer for personal documents
—No, you mustn’t. It’s only for work purposes.
A．May B．Can C．Must
（三）must相关
( ) 1．—Must I hand in the report tomorrow morning
—No, you ______. You can submit it by the end of the week.
A．needn’t B．can’t C．shouldn’t
( ) 2．You ______ obey the traffic rules when driving. It’s important for safety.
A．may B．must C．can
( ) 3．He ______ be at home now. His car is still in the garage.
A．must B．may C．can’t
( ) 4．We ______ finish the project on time. The client is waiting for the result.
A．must B．may C．should
( ) 5．—Must we attend the meeting this evening
—Yes, you ______. It’s a very important meeting.
A．must B．can C．may
( ) 6．She ______ be very tired after running a marathon. Let’s let her rest.
A．must B．may C．can’t
( ) 7．You ______ not tell lies to your parents. They always care about you.
A．must B．may C．need
( ) 8．—Who broke the window
—It ______ be Jack. He was playing football near the window just now.
A．must B．may C．can’t
( ) 9．We ______ not waste water. It’s a precious resource.
A．must B．may C．need
( ) 10．He ______ have to take the train because his flight was canceled.
A．must B．has to C．should
（四）should相关
( ) 1．You ______ eat more vegetables and fruits. They are good for your health.
A．should B．can C．may
( ) 2．We ______ respect the elderly and offer them help when they need it.
A．should B．must C．can
( ) 3．You ______ not spend too much time playing video games. It’s bad for your eyes.
A．should B．must C．need
( ) 4．—I don’t know how to solve this problem.
—You ______ ask your teacher for help. He is always ready to help students.
A．should B．can C．may
( ) 5．Children ______ learn to be independent from an early age.
A．should B．must C．may
( ) 6．We ______ protect the environment. It’s our responsibility to make the earth greener.
A．should B．can C．need
( ) 7．You ______ apologize to her. It was your mistake that made her angry.
A．should B．must C．may
( ) 8．He ______ work harder if he wants to pass the exam.
A．should B．can C．may
( ) 9．We ______ not litter in public places. Let’s keep the city clean.
A．should B．must C．need
( ) 10．You ______ arrive on time for the interview. Being late will leave a bad impression.
A．should B．can C．may
（五）need相关
( ) 1．You ______ worry about the exam. You have prepared very well.
A．needn’t B．mustn’t C．can’t
( ) 2．—______ we bring our own towels to the hotel
—No, the hotel provides clean towels for guests.
A．Need B．Must C．Can
( ) 3．The machine ______ to be checked regularly to ensure it works properly.
A．needs B．need C．must
( ) 4．He ______ come to the party tonight. He has to finish his homework.
A．needn’t B．doesn’t need to C．mustn’t
( ) 5．You ______ not buy any milk. There is still a lot in the fridge.
A．need B．must C．should
( ) 6．—Need I finish all the work today
—Yes, you ______. The deadline is today.
A．must B．need C．can
( ) 7．The garden ______ watered every day in summer. It’s too hot.
A．needs to be B．needn’t be C．mustn’t be
( ) 8．She ______ any help. She can solve the problem by herself.
A．doesn’t need B．needn’t C．both A and B
( ) 9．We ______ hurry. The train will leave in two hours.
A．needn’t B．mustn’t C．can’t
( ) 10．This shirt ______ washed by hand. It’s made of silk.
A．needs to be B．needn’t be C．mustn’t be
参考答案
（一）can相关
1．A 2．A 3．B 4．A 5．A 6．A 7．B 8．B 9．A 10．C
（二）may相关
1．B 2．A 3．A 4．A 5．A 6．A 7．B 8．A 9．A 10．A
（三）must相关
1．A 2．B 3．A 4．A 5．A 6．A 7．A 8．A 9．A 10．B
（四）should相关
1．A 2．A 3．A 4．A 5．A 6．A 7．A 8．A 9．A 10．A
（五）need相关
1．A 2．A 3．A 4．B 5．A 6．A 7．A 8．C 9．A 10．A