初中英语语法知识—情态动词的综合练习(1)
初中英语语法之情态动词用法及练习题(含答案)
情态动词用法及练习题一、情态动词的概念：情态动词主要用以表明说话者对某一行为的态度和观点，主要包括揣测、判断、需要及各种意愿。
常见的情态动词有can、may、could、must、have to、should、would等。
二、情态动词的特征(1)情态动词本身有词义，但词义不完整，因此不能独立作谓语，只能和主要动词一起构成谓语。
例如：I can play the piano.（ can play整体为谓语）(2)其后动词使用原形。
例如：You should lie down.(3)情态动词一般没有人称和数的变化(即不管是何人称，后面接的情态动词都不变)。
例如：I/She can sing.(4)它的否定式一般是在其后加 not构成，在一般疑问句中通常将其提到句首。
结构如下：①肯定句：主语+情态动词+动词原形+其他。
例如：He can swim.②否定句：主语+情态动词+not+动词原形+其他。
例如：He can't swim.③一般疑问句：情态动词+主语+动词原形+其他？Yes，主语+情态动词. No,主语+情态动词+not.例如：-Can he swim?-Yes, he can. No,he can’t.④特殊疑问句：特殊疑问词+情态动词+主语+动词原形+其他? 例如： -What can he do ?-He can swim.三.情态动词的用法(1)can的用法①表示“能力”Can you sing?你会唱歌吗?②表示客观条件允许You can listen to music here.你可以在这里听音乐。
You can’t park your car here. 你不能在此停车③can用在否定句和疑问句中时，有时表示说话人的怀疑、惊异、或猜测：It can’t be true.这不可能是事实Can it be true?这可能是真的吗？④.can的搭配用法：A.as +adj./adv.+as one can/could “尽可能，尽量……”，如：The man took his child to the hospital as quickly as he could.这个男人尽可能快地将孩子送去医院。
最新初中英语语法知识—情态动词的经典测试题及解析(1)
一、选择题1．—Look! Mrs. Smith is standing in front of the teaching building.—It______ her. She has gone to Egypt for her holiday.A．must be B．mustn’t be C．can be D．can’t be2．The designer has tried every possible way to make the robot light, so you _____ worry about its weight.A．must B．may C．can’t D．needn’t3．All passengers_____ go through safety check before they take a plane.A．may B．can C．must D．need4．—________your house be cleaned right now？—No,it needn't.It may be cleaned this afternoon．（）A．Must B．May C．Can5．A: Is Jim coming by train?B: I’m not sure. He _______ drive his car.A．must B．may C．need D．should6．You look quite tired. You'd better ________ a good rest.A．stop to have B．stop having C．to stop to have D．to stop having 7．—Hi, Lucy, may I sit here?—No, ________. The seats are for teachers and parents.A．you needn't B．you aren't C．you mustn't D．you don't 8．（江苏省无锡市锡北片2017届九年级下学期期中考试）—Where are you going for your summer holiday?—We go to Yun Nan, but we haven’t decided yet.A．should B．will C．may D．must 9．—Doesn’t Frank like staying at home and looking after his little sister?—_______, but he ________ because both of his parents work.A．Yes; has to B．No; has toC．Yes; doesn’t have to D．No; doesn’t have to10．-Listen! A wolf is crying!-It _______ be a wolf, because a wolf never comes out at this time.A．mustn’t B．needn’t C．can’t D．don’t11．You should________ the teacher________being late for school.A．apology to, about B．apologize to, forC．apologies to, for D．apologize to, on12．Even the top student can't work out this problem, so it________ be too difficult. A．must B．may C．can D．need 13．—Jenny, we buy Mom presents. We can clean the house from top to bottom.—Good idea! It’s a special present for Mother’s Day.A．can’t B．mustn’tC．shouldn’t D．needn’t14．—________ I borrow the books from the library, Miss Yang?—Sorry, you________. These books are only for members of the English Club. A．Can; couldn’t B．Could; can’tC．Could; couldn’t D．Can; needn’t15．Since the road is muddy,it ________last night, ________?A．must be rained; wasn’t it B．must have rained; didn’t it C．must rained; didn’t it D．must have rained; wasn’t it 16．—Must I start now?—No, you_______________.A．mustn't B．can't C．needn't D．must 17．—I feel tired.—You ________ go to bed so late.A．must B．shouldn’t C．should18．This book _____ Lucy’s. Look! Her name is on the book cover.A．must be B．may be C．can’t be D．mustn’t be 19．—Is Wilson on duty in class today?—It________be him. It's his turn tomorrow.A．must B．can't C．should D．needn't 20．—We've prepared all kinds of foods for the picnic.—Do you mean I___ bring anything?A．can't B．needn't C．mustn't D．won't 21．—Who is the lady over there? Is it Miss Wang?—It __________be her. Miss Wang is much taller.A．needn't B．mustn't C．shouldn't D．can't 22．The milk tastes bad. You’d better_______.A．throw it away B．to throw it awayC．throw them away D．to throw them away【参考答案】***试卷处理标记，请不要删除一、选择题1．D解析：D【解析】【分析】句意：——看！史密斯太太正站在教学楼的前面。
初中情态动词知识点及习题(附答案)
初中情态动词讲解及练习题情态动词表示语气和态度。
有实际词义，但是没有单复数等词形变化。
后面通常加动词原形中考主要考查can，must，may，need四个情态动词。
除此之外，表示必要性的情态动词还有should，应该，这个语气比must弱，还有易考点：一．比较have to和must：1) 两词都是'必须'的意思，have to表示客观的需要，must 表示说话人主观上的看法，既主观上的必要。
My brother was very ill, so I had to call the doctor in the middle of the night.我弟弟病得很厉害，我只得半夜里把医生请来。
(客观上需要做这件事)He said that they must work hard.他说他们必须努力工作。
（主观上要做这件事）2) 在否定结构中：don't have to 表示"不必" mustn't表示"禁止"，You don't have to tell him about it. 你不一定要把此事告诉他。
You mustn't tell him about it. 你一定不要把这件事告诉他。
二．肯定句中，表示推测，语气最强的是must，但在否定句和疑问句中，表示怀疑，猜测，要用can’t. （mustn’t禁止，不允许，不能用来表推测；can’t 不可能）There is someone knocking the door. It must be Tom.It can’t be Tom in the classroom. Because he is ill and he doesn’t come to school today.三．情态动词的回答1. 以can开头的一般疑问句，其肯定和否定回答分别用：can和can’t。
初中英语语法专项练习-情态动词
---- ______ Of course, please.And I’d rather he ______
me the truth.
A. Will;inform
C. dare not tell
D. dare not telling
3 --- would you like to have a cup of tea? ---- ____B____.
A. Yes, I’ll like to
B. Yes, I’d like to
C. No, I wouldn’t D. No, I don’t like that
A. be, should have been B. am, should be
C.should be, be D. have been, should have been 7.___C___ out of season, I would have ordered some from
the fruit stand.
（一）情态动词专项训练
1.let’s go out for a walk,___A____ ?
A. shall we B. don’t you C. will you D. do you
2.He ___C____ his parents about his failure in the exam.
A. dares not tell B. dares not to tell
A. If oranges would have been
B. If oranges have not been
C.Had oranges not been
D.Should oranges not have been
初中英语情态动词专项练习(附答案解析)
初中英语情态动词专项练习（附答案解析）一、单选题1．—Must I hand in the homework right now?—That's the rule.A．Yes, you can.B．No, you can't.C．Yes, you must.D．No, you mustn't.1．答案C解析句意：—我必须现在交作业吗？—这是规则。
是的,，你必须。
A. Yes,you can.“是的,你能”；B. No,you can't.“不,你不能”；C. Yes,you must.“是的,你必须”；D. No,you mustn't.“不,你禁止”。
回答must引导的一般疑问句，肯定用must，表示"必须"。
故选C。
点评考查情态动词引导的一般疑问句的回答，掌握情态动词must的用法。
2．You don't look well, you __________ see the doctor.A．ought to B．may C．can D．Might 2．答案A解析句意：你看起来不好，你应该去看看医生。
根据“看起来不好”可以得知是应该去。
A. ought to “应该”；B. may “可能”；C. can“ 会”；D. might“可能”。
故选A。
点评考查情态动词，区分ought to；may ；can和might的含义和应用。
3．What a beautiful day! You ______ take your umbrella at all.A．needn't B．mustn't C．can't D．may not 3．答案A解析句意：多好的天气啊!你根本不需要带伞。
A. needn't “不必”；B. mustn't“禁止”；C. can't“不可能”；D. may not“或许不会”。
初中英语常用语法知识——情态动词经典练习题(含答案)
一、选择题1．—Don't forget to come to my birthday party tomorrow.— _________.A．I don't B．I won't C．I will D．I'd like to B解析：B【解析】【详解】句意：——明天别忘了来参加我的生日聚会。
——我不会忘的。
考查否定祈使句的答语。
I don't我不会的，一般回答现在时；I won't我不会的，回答将来时；I will我会的，回答将来时；I'd like to我想要。
分析句子可知，此处表示“我不会”的含义，且用来回答明天的事情，故选B。
2．Don’t________ in the classroom. It’s important ________ quiet when you study. A．talk, keep B．to talk, keep C．talk, to keep D．to talk, to keep C解析：C【解析】【详解】句意：不要在教室里交谈。
当你学习的时候保持安静是重要的。
talk交谈，原形；to talk交谈，动词不定式；keep保持；原形；to keep保持，动词不定式。
第一空是否定祈使句，其结构是Don’t+动词原形。
排除BD；It’s important+to do sth.表示做某事是重要的。
排除A。
根据题意，故选C。
【点睛】祈使句的否定结构是以“Don”t＋动词原形”开头.例如：Don”t go there,please．请别去那儿.Don”t be late．不要迟到.3．Mike, __________ make any noise, your father is sleeping.A．not B．don't C．won't D．can't B解析：B【解析】【详解】句意：麦克，不要吵闹，你父亲正在睡觉。
人教版英语英语情态动词专项练习题及答案详解含答案
人教版英语英语情态动词专项练习题及答案详解含答案一、初中英语情态动词1．— _______ you play tennis?—Yes, and I'm a good player.A. CanB. MayC. MustD. Should【答案】 A【解析】【分析】句意：——你会打网球吗？——会，我是一名优秀的网球员。
Can能，表示能力；may可以，表示允许；must必须，表示要求；should应该，表示建议；结合句意，此处表示能力，故用情态动词can，故选A。
【点评】此题考查情态动词的用法。
2．—Where is Monica? I can't find her anywhere.—She be in the library. She loves reading books when she is free.A. mustB. needC. can't【答案】 A【解析】【分析】句意：——莫妮卡在哪？我到处都找不到她。
——她肯定在图书馆，她喜欢空闲时看书。
A肯定，肯定句中表示推测，B需要，C不可能，否定句中表示推测，根据 She loves reading books when she is free ，可知是肯定句表示推测，故选A。
【点评】考查情态动词，注意情态动词表推测的用法。
3．—Shall we meet at the station at 9 a.m.?—In fact we ______. The train ______until 11a.m.A. needn't; will leaveB. needn't; won't leaveC. mustn't; leavesD. mustn't; doesn't leave【答案】 B【解析】【分析】句意：—我们上午9点在车站见面好吗？—事实上我们不需要。
火车直到11点才离开。
初中英语语法专项习题-情态动词
初中英语语法专项习题-情态动词1( ) 1 John___ come to see us tonight, but he isn't very sure yet.A. mayB. canC. has toD. must( ) 2 They ___ do well in the exam.A. can be able toB. be able toC. can able toD. are able to( ) 3 -May I take this book out?-No, you___.A. can'tB. may notC. needn'tD. aren't( ) 4 You___ go and see a doctor at once because you're got a fever.A. canB. mustC. dareD. would( ) 5 -Can you speak Japanese?-No, I____.A. mustn'tB. can'tC. needn'tD. may not2( ) 1 -He___ be in the classroom, I think.-No, he ___ be in the classroom. I saw him go home a minute ago.A. can; may notB. must; may notC. may; can'tD. may; mustn't( ) 2 -Shall I get one more cake for you, Dad?-Thanks, but you___, I've had enough.A. may notB. must notC. can'tD. needn't( ) 3 Even the top students in our class can't work out this problem, so it be very difficult.A. mayB. mustC. canD. need( ) 4 He isn't at school. I think he ___ be ill.o A. can B. shall C. must D. has to( ) 5 ___ I take this one?A. MayB. WillC. AreD. Do3( ) 1 The children___ play football on the road.A. can'tB. canC. mustn'tD. must( ) 2 You ___ be late for school again next time.A. mustn'tB. needn'tC. don't have toD. don't need to( ) 3 -Must I do my homework at once?-No, you___.A. needn'tB. mustn'tC. can'tD. may not4( ) 1 His arm is all right. He___ go and see the doctor.A. has not toB. don't have toC. haven't toD. doesn't have to( ) 2 He had to give up the plan, ___ he?A. didB. didn'tC. doesD. doesn't( ) 3 They had to walk here, ___ they?A. mustn'tB. didC. didn'tD. hadn't5( ) 1 He had better stay here, ___ he?A. didn'tB. don'tC. hadn'tD. isn't( ) 2 You'd better___late next time.A. not to beB. not beC. won't beD. don't be( ) 3 You'd better ___ your hair ___ once a month.A. had; cutB. had; cuttedC. have; cutD. have; cutted( ) 4 You___ ask that man over there. Maybe he knows the way. A. had better not to B. had not better C. had better D. had better not 6( ) 1 -Shall we go and visit the History Museum next Sunday? A. Here you are B. Sorry, I can't C. Yes, please D. Let me try ( ) 2 -Why don't you ask Mike to go with us?-Thanks, ___.A. I willB. I won'tC. leanD. I may( ) 3 -___ I take the newspaper away?-No, you mustn't. You____read it only here.A. Must; canB. May; canC. Need; mustD. Must; must7( ) 1 Excuse me. ___ you please pass me that cup?A. DoB. ShouldC. WouldD. Must( ) 2 ___ you like to have another try?A. CouldB. WillC. WouldD. Do( ) 3 -Would you like to go boating with us?-Yes, ___.A. I'd like B. I want C. I'd like to D. I do8( ) 1 You___ worry about your son. He will get well soon.A. needn'tB. can'tC. mustn'tD. have to( ) 2 The poor man needs our help, ___ he?A. needB. needn'tC. doesD. doesn't( ) 3 -Must we do our homework first?-No, you___. You may have a rest first.A. mustn'tB. needn'tC. may notD. can't参考答案：1. 1-5 A D A B B2. 1-5 C D B C A3. 1-3 C A A4. 1-3 D B C5. 1-4 C B C C6. 1-3 B A B7. 1-3 C C C8. 1-3 A D B。
最新初中英语语法知识—情态动词的经典测试题及答案解析(1)
一、选择题1．—________ I borrow the books from the library, Miss Yang?—Sorry, you________. These books are only for members of the English Club.A．Can; couldn’t B．Could; can’tC．Could; couldn’t D．Can; needn’t2．(2018·山东临沂) Could you please speak a little louder? I ______ hear you very well. A．can’t B．mustn’tC．shouldn’t D．needn’t3．―I didn’t pass the driving test again.―Don't worry. Just like the weather, life be beautiful all the time.A．can't B．needn't C．shouldn't D．mustn't4．You______ worry about your lessons. Be careful next time and you will get a good mark. A．don’t need to B．not need C．needn’t to D．don’t need 5．A: Is Jim coming by train?B: I’m not sure. He _______ drive his car.A．must B．may C．need D．should6．From March 23rd, 2013, anyone under the age of 14 ________ go into Disneyland alone. A．couldn’t B．mustn’t C．needn’t D．mightn’t7．（江苏省无锡市锡北片2017届九年级下学期期中考试）—Where are you going for your summer holiday?—We go to Yun Nan, but we haven’t decided yet.A．should B．will C．may D．must8．You __ drive your car so fast. It's very dangerous.A．wouldn't B．shouldn't C．couldn't D．mightn't9．The milk tastes bad. You’d better_______.A．throw it away B．to throw it awayC．throw them away D．to throw them away10．—Must I finish the work today, Mum?—No, you ________.You can finish it tomorrow.A．mustn't B．can't C．shouldn't D．needn't 11．One ______ easily lose his way when he visits or comes to a new place.A．may B．must C．need D．should12．－Mum, must I stay there the whole day?－No, you__________. You__________ come back after lunch, if you like.A．mustn’t; can B．needn’t; must C．needn’t; may 13．—Could you please hang out with me this afternoon?—______. I have to make a plan for Clean-Up Day.A．Sorry, I couldn’t B．Sorry, I can’tC．Sure, I can D．Sure, I could14．-_________ you help me with my homework?-Of course if I __________.A．Could; could B．Can't; can C．Could; can D．Can; could 15．Everyone______ be polite to their parents.A．could B．may C．should D．can16．---I heard they went skating in the mountains last winter.---It ______ true because there was little snow there.A．may not be B．won’t be C．couldn’t be D．will be 17．—The food ________be delicious . You ate it up .—You bet . My mum cooked it for me .A．must B．may C．can D．need18．一Hurry up, Mark! Let's cross the road as quickly as possible.一No，you . Don't you see the light is still red?A．couldn't B．wouldn't C．mustn't D．needn't 19．—Mum, I’ve signed for a big box by Future Express (快递). What’s in it?—I’m not sure. It ________be a present from yo ur brother.A．need B．must C．may D．will 20．（2017 • 湖北省宜昌市中考）—Life is becoming convenient with the Internet.—That’s true! Almost everything be done online.A．must B．would C．should D．can21．—I often see Maria in the library, and she _________ like reading best.—That’s right.A．need B．may C．must D．can 22．—Look! Mrs. Smith is standing in front of the teaching building.—It______ her. She has gone to Egypt for her holiday.A．must be B．mustn’t be C．can be D．can’t be【参考答案】***试卷处理标记，请不要删除一、选择题1．B解析：B【解析】【分析】【详解】句意：——杨小姐，我能从图书馆借这些书吗？——对不起，你不能。
初中英语情态动词专项练习题
初中英语情态动词专项练习题情态动词:can could may might will would must have to need had better should情态动词特点1.情态动词没有人称和数的变化.2.情态动词后必须跟动词原形。
考点一：can，could, may，must 等情态动词的用法：1. can 的用法：（1）.表示能力,译为“能、会”，即有种能力，尤其是生来具备的能力。
She can swim fast, but I can’t . 她能游得很快，但我不能。
I can see with my eyes. 我用眼睛看。
（2）.表示许可，常在口语中。
You can use my dictionary. 你可以用我的字典。
（3）.表示推测，条件: 常用于否定句和疑问句中，此时can’t 译为“ 不可能”。
Can the news be true? 这个消息会是真的吗？—Can it be our teacher?那个人有可能是我们老师吗？—No, it can’t be our teacher. He is on a visit to the G reat Wall.不可能。
咱们老师正在游览长城呢。
【例题】—I think Miss Gao must be in the library. She said she would go there. —No. She __be there, I have just been there. A.can’t B.mustn’t C.needn’t D.wouldn’t【解析】根据下文“我刚去过那儿”可知，应为“ 不可能”，can’t 表示推测[答案] A2. could的用法：（1）.can的过去式，意为“ 能、会”，表示过去的能力。
He could write poems when he was 10. 他十岁时就会写诗。
（2）. could在疑问句中，表示委婉的语气，此时could 没有过去式的意思。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
一、选择题1．You should________ the teacher________being late for school.A．apology to, about B．apologize to, forC．apologies to, for D．apologize to, on2．(2018·山东临沂) Could you please speak a little louder? I ______ hear you very well. A．can’t B．mustn’tC．sho uldn’t D．needn’t3．You have finished most of the work, so you ____ start working so early tomorrow. You may come at 9 :00.A．can't B．mustn't C．needn't D．couldn't 4．Since you are very tired, you ______ finish the work today.A．needn’t B．may not C．mustn’t D．can’t5．―I can't stop smoking, Doctor.―For your health, I'm afraid you .A．must B．can C．need D．have to6．I hope you __________ to my birthday party.A．to come B．can come C．comes D．are come 7．You______ worry about your lessons. Be careful next time and you will get a good mark. A．don’t need to B．not need C．needn’t to D．don’t need 8．From March 23rd, 2013, anyone under the age of 14 ________ go into Disneyland alone. A．couldn’t B．mustn’t C．needn’t D．mightn’t 9．— Mom, I got a big box from express(快递). What is it?—I’m not sure. It ________be a present from your grandmother.A．should B．might C．must D．will10．You run with the train when it is coming. It’s dangerous.A．may not B．mustn’t C．needn’t11．The milk tastes bad. You’d better_______.A．throw it away B．to throw it awayC．throw them away D．to throw them away12．I’m sorry, children over 1.4 meters________pay the full price for the show.A．may B．must C．can D．ought to 13．-Could you help me with my English homework, Nancy?-Of course I____________. Glad to help.A．could B．can C．must D．do14．—________ I borrow the books from the library, Miss Yang?—Sorry, you________. These books are only for members of the English Club.A．Can; couldn’t B．Could; can’tC．Could; couldn’t D．Can; needn’t15．—Jack must be in his office, I think.—No, he be in the office. He flew to Canada this morning.A．needn't B．shouldn't C．can't D．mustn't 16．—Could you please hang out with me this afternoon?—______. I have to make a plan for Clean-Up Day.A．Sorry, I coul dn’t B．Sorry, I can’tC．Sure, I can D．Sure, I could17．Everyone______ be polite to their parents.A．could B．may C．should D．can 18．（2017 • 湖北省宜昌市中考）—Life is becoming convenient with the Internet.—That’s true! Almost everything be done online.A．must B．would C．should D．can19．— May I watch TV for a while?— No, you __________. You have to finish your homework first.A．can’t B．needn’t C．mustn’t D．won’t 20．—Could I call you by the first name?—Yes, you .A．will B．could C．may D．might21．－Mum, must I stay there the whole day?－No, you__________. You__________ come back after lunch, if you like.A．mustn’t; can B．needn’t; must C．needn’t; may 22．—Doesn’t Frank like staying at home and looking after his little sister?—_______, but he ________ because both of his parents work.A．Yes; has to B．No; has toC．Yes; doesn’t have to D．No; doesn’t have to【参考答案】***试卷处理标记，请不要删除一、选择题1．B解析：B【解析】【详解】句意：你应该因为上学迟到向老师道歉。
本题考查动词短语。
apology道歉，是名词；apologize道歉，是动词；about关于，for为了，on在……上面。
apologize to sb fo r sth“因为某事向某人道歉”，位于情态动词should 后，用动词原形，故选B。
2．A解析：A【解析】【详解】句意：请你说大点声好吗？我不能很好地听到你说的话。
考查情态动词辨析。
can't不能，表示不能够；mustn't不许，表禁止；shouldn’t不应该，表劝诫；needn’t无需，表示没必要。
本句表示“不能够”，根据句意语境，可知BCD三项意思都与句意不合，故选A。
3．C解析：C【解析】【详解】句意：你已经完成了大部分工作，所以你明天不必这么早就开始工作。
你可以9点来。
本题考查情态动词。
can't不可能，mustn’t禁止，needn’t不必，couldn’t可能不。
根据You have finished most of the work可知，你已经完成了大部分工作，因此明天不必这么早就开始工作，因此用needn’t，故选C。
4．A解析：A【解析】【详解】句意：既然你很累，今天就不必完成这项工作了。
A. needn’t不必；B. may not 可能不；C. mustn’t禁止；D. can’t不能。
根据上文Since you are very tired,可知，情态动词needn’t表示不需要，后面直接加动词原形。
根据题意，故选A。
5．D解析：D【解析】【详解】句意：——我不能戒烟，医生。
——为了你的健康，恐怕你得这么做。
考查情态动词辨析。
must必须，强调主观意愿；can能，表能力或许可；need需要，指有必要；have to必须，强调客观需要。
根据“For your health为了你的健康”，可知无论愿不愿意戒烟是健康所需，故选D。
6．B解析：B【解析】【分析】考点：考查动词。
【详解】试题分析：句意：我希望你能来参加我的生日聚会。
hope to do sth希望做某事；hope that从句，希望……。
但不能说hope sb to do sth；从句主语you，所以谓语动词不能用comes单数形式；come是实意动词，前面不能用are；所以选B。
7．A解析：A【解析】【详解】句意：你不必担心你的功课。
下次小心点，你会取得好成绩的。
考查动词need用法辨析。
need用作情态动词时常和不带to的不定式一起作谓语，否定式是将not置于其后，并有其否定的缩写形式needn't，在疑问和否定句中不加助动词；可知BCD三项表达错误。
用作行为动词时，need是一个普通的及物动词，用在肯定、否定和疑问句中均可，接不定式时要带to。
本句need用作及物动词，根据句意结构，故选A。
8．B解析：B【解析】【详解】句意：从2013年3月23日开始，14岁以下的人禁止单独去迪士尼乐园。
考查情态动词词义辨析。
couldn’t不能；mustn’t禁止，不允许；needn’t不必；mightn’t可能不。
根据题意可知14岁以下的人禁止单独去迪士尼公园，表达一种强制规定，用mustn’t禁止，不允许。
故选B。
9．B解析：B【解析】【详解】句意：——妈妈，我从快递公司收到了一个大箱子。
它是什么？——我不确定。
可能是你祖母送的礼物。
考查情态动词。
should应该；might可能；must必须； will将，会。
根据“I’m not sure”可知下文是没有把握的肯定推测。
根据题意，故选B。
10．B解析：B【解析】【详解】句意：火车来的时候你不能跟它一起跑，这很危险。