11.情态动词综合-2025-2026学年英语期末语法复习九年级全册（北师大版）

期末语法复习 9上·北师大版·情态动词综合 一、情态动词的核心用法详解 考点一：情态动词can/could的用法 规则：can表示“能、会”，用于现在或将来；could是can的过去式，也可表示委婉请 求。 真题再现（选择，北师大九上期末真题改编）： you swim when you were five?-Yes,I could. A)Can B)Could C)May D)Must 答案：B 解析：描述过去能力用cold。 例题练习： Could you please(open)the window? 答案：open 解析：cold表委婉请求，后接动词原形。 考点二：情态动词may/might的用法 规则：may表示“可以、可能”，might语气更委婉或表示过去的可能。 真题再现（选择）： -I borrow your dictionary?-Sure,here you are. A)Must B)Should C)May D)Need 答案：C 解析：请求许可用may。 例题练习： It rain tomorrow,so take an umbrella. 答案：might 解析：表示可能性用mght。 考点三：情态动词must/have to的用法 规则：must表示“必须”，强调主观；have to表示“不得不”，强调客观。 真题再现（选择）： You_wear a seat belt when driving.It's the law. A)can B)must C)may D)could 答案：B 解析：法律规定必须做用must。 例题练习： She_(go)to work yesterday because her mother was ill. 答案：had to go 解析：过去时客观必须用had to。 考点四：情态动词should/ought to的用法 规则：should和ought to均表示“应该”，ought to语气更强，后接动词原形。 真题再现（选择）： You brush your teeth twice a day. A)should B)can C)will D)would 答案：A 解析：建议应该做某事用should。 例题练习： We ought to (help)the old. 答案：help 解析：ought to后接动词原形。 考点五：情态动词的否定形式 规则：can't表示“不能、不可能”；mustn't表示“禁止”；needn't表示“不必”。 真题再现（选择）： Youplay football in the street.It's dangerous. A)needn't B)mustn't C)won't D)wouldn't 答案：B 解析：禁止做某事用mustn't。 例题练习： -Must I finish it now?-No,you_(need) 答案：needn't 解析：不必做某事用needn't。 考点六：情态动词表示推测的用法 规则：must用于肯定推测“一定”，can't用于否定推测“不可能”，may/might用于不 确定推测“可能”。 真题再现（选择）： The light is on.He_be at home. A)can't B)must C)may D)might 答案：B 解析：肯定推测用must。 例题练习： This book(can)be Lucy's.She likes reading this kind of stories. 答案：may 解析：可能性推测用may。 二、考点综合训练 (一)单项选择 1.-you finish the report by tomorrow?I need it for the meeting. A)Can B)Must C)May D)Should 2.Youpark here.The sign says"No Parking". A)needn't B)mustn't C)won't D)wouldn't 3.The ground is all wet.It rained heavily last night. A)can't B)must C)may D)might 4.-Could I use your computer for a while? -Sorry,you.I need to finish my homework now. A)can't B)mustn't C)needn't D)shouldn't 5.We help the poor and the old.It's our duty. A)can B)may C)should D)would 6.Shestay at home yesterday because she had a bad cold. A)must B)had to C)should D)could (二)语法填空 1.You(should)be late for school.It's important to arrive on time. 2.-Must I return the book today? -No,you_(need).You can keep it for three more days. 3.It(might)snow next week,so remember to take warm clothes 4.Could you please(close)the door?It's windy outside. 5.He_(can)swim very well when he was seven years old. (三)句型转换 1.You must finish your homework before dinner.(改为否定句) You_finish your homework before dinner. 2.They may come to the party tonight.(改为一般疑问句) they to the party tonight? 3.She has to take care of her little sister on weekends.(对划线部分提问) she_to_on weekends? 4.The book must be Lily's.(改为否定句) The book Lily's. (四)篇章填空 Dear Mike, I hope you're doing well.You asked if I 1.-(can)help you with your English exam next month.I'm sorry,but I 2.(can)because I have to visit my grandparents that week.They live in another city,and I 3.-(not see)them for a long time. You 4.(should)ask Tom for help.He is good at English,and he 5.(may)have free time. Also,you 6.(mustn't)stay up late studying.It's bad for your health.You 7.(had better) make a study plan instead. By the way,it 8.(might)rain on the day of the exam,so don't forget your umbrella! Best wishes, Lisa (五)参考答案与解析 1.单项选择答案：1.A2.B3.B4.A5.C6.B 2.语法填空答案： 1.shouldn't 2.needn't 3.might 4.close 5.could 3.句型转换答案： 1.needn't 2.May;come 3.What does;have,do 4.can't be 4.篇章填空答案： 1.could 2.can't 3.haven't seen 4.should 5.may 6.mustn't 7.had better 8. might 英语语法复习手册·9上·北师大版·情态动词综合