4.条件状语从句-2025-2026学年高中英语期末语法复习选择性必修3（沪教版）

期末语法复习 选择性必修3·沪教牛津版（上海教育）·条件状语从句 一、考点讲解 考点概述：条件状语从句是高中英语常用语法，用于表示主句动作发生的条件，核心考 点围绕不同条件类型（如真实条件、非真实条件)的引导词使用及谓语动词形式展开。 考点一：真实条件句（主将从现） 结构：f从句用一般现在时，主句用一般将来时(w+动词原形)情态动词 (can/may/.must等)+动词原形 例句：If you study hard,you will pass the exam easily. 真题再现： Ifitsunny tomorrow,we will go hiking in the mountains.【2023沪教牛津版选择性必 修3期末模拟】 A)is B)was C)will be D)would be 答案：A 解析：真实条件句遵循”主将从现”原则，从句用一般现在时 You can get good grades if youcareful enough in the exam.【2022上海市高二期末】 A)are B)were C)will be D)would be 答案：A 解析：主句含情态动词can,从句仍需用一般现在时 考点二：与现在事实相反的虚拟条件句 结构：if从句用一般过去时(be动词统一用were),主句用would/should/could/might+ 动词原形 例句：IfI were you,I would choose the red sweater instead of the blue one. 真题再现： IfI_a bird,I could fly over the mountains and rivers.【2023上海市高三一模】 A)am B)was C)were D)be 答案：C 解析：与现在事实相反，be动词需用were 一What would you do if you_10000 yuan now?【2022沪教牛津版高二调研】 -I would buy a new computer for my study. A)have B)had C)has D)having 答案：B 解析：与现在事实相反，从句用一般过去时 考点三：与过去事实相反的虚拟条件句 结构：if从句用过去完成时(had+过去分词)，主句用would/should/could/might+have +过去分词 例句：If he had told me the truth yesterday,.I wouldn't have been so angry. 真题再现： If you the instructions carefully,you wouldn't have made such a mistake.【2023新高考 IⅡ卷】 A)read B)reads C)had read D)have read 答案：C 解析：与过去事实相反，从句需用过去完成时 She the first prize in the competition,but she gave up halfway.【2022上海市高二期末】 A)could win B)could have won C)must win D)must have won 答案：B 解析：隐含与过去事实相反的虚拟条件，主句用could have won 考点四：与将来事实相反的虚拟条件句 结构：if从句用should+动词原形/were to+动词原形/一般过去时，主句用 would/should/cold/might+动词原形 If we were to start tomorrow,we might anive at the destination next week. 真题再现： Ifhe_to visit us next month,.we would hold a welcome party for him.【2021沪教牛津版 高三模拟】 A)comes B)came C)will come D)would come 答案：B 解析：与将来事实相反，从句可用一般过去时 Ifit_rain this weekend,our plan to go camping would be canceled..【2023上海市高二质 检】 A)should B)would C)will D)is going to 答案：A 解析：与将来事实相反，从句可用should+动词原形 考点五：含蓄虚拟语气（无f从句） 结构：通过介词短语(without//but for)、副词(otherwise/or)或上下文暗示虚拟条件， 主句结构对应相应时间的虚拟形式 例旬：Without your timely support,we couldn't have completed the project on schedule..(暗 含与过去事实相反) 真题再现： I was too busy with my work last week,otherwise,I_your birthday party.【2022全国乙 卷】 A)attended B)had attended C)would attend D)would have attended 答案：D 解析：otherwise暗示与过去事实相反，主句用would have done But for the heavy traffic,.we_the meeting on time yesterday..【2023上海市高三二模】 A)would attend B)would have attended C)attended D)had attended 答案：B 解析：but for暗示与过去事实相反，主句用would have done 考点六：f的省略与倒装】 结构：当if从句中有were/had/should时，可省略if并将were/had/should提到主语前， 构成倒装结构 Should it rain tomorrow,we would stay at home.(If it should rain tomorrow...) 真题再现： I known about this earlier,.I would have told you.【2022新高考I卷】 A)If B)Whether C)Had D)Were 答案：C 解析：Had I known=If I had known it not for your help,I would be in trouble now.【2023上海市高二期末】 A)Was B)Were C)Had D)Should 答案：B 解析：Were it not=If it were not 考点七：混合虚拟条件句（主从句时间不一致） 结构：从句和主句表示的时间不同时，需根据各自时间调整虚拟结构（常见”过去从句 +现在主句”或”现在从句+过去主句) 例句：If you had told me the news yesterday,.I would not be so worried now.（从句过去，主 句现在) 真题再现： If youharder at school,you would have a better job now.【2023沪教牛津版高三模拟】 A)study B)studied C)had studied D)have studied 答案：C 解析：从句表示过去（在学校时），主句表示现在 If I were you,I more time on English when I was in high school.【2022上海市高三一 模】 A)spend B)spent C)would spend D)would have spent 答案：D 解析：从句表示现在（假设），主句表示过去（高中时） 二、考点综合训练 (一)单项选择 1.If youthe meeting yesterday,you would know the details now. A)attend B)attended C)had attended D)have attended 2.Without your help,I the project on time last month. A)wouldn't finish B)wouldn't have finished C)didn't finish D)hadn't finished 3.If it rain tomorrow,we might cancel the picnic. A)should B)will C)is D)would 4.My teacher suggested that I more time practicing listening. A)spend B)spends C)spent D)will spend 5.I known about the traffic jam,I would have left earlier. A)If B)Were C)Had D)Should 6.Youthe exam easily if you study hard from now on. A)pass B)passed C)will pass D)would pass 7.If I you,I would accept the job offer immediately. A)am B)was C)were D)be 8.Shethe first prize in the competition,but she was too nervous. A)could win B)could have won C)must win D)must have won (二)语法填空 1.IfI (have)enough money last year,I would have bought a new laptop. 2.The doctor advised that he(take)a rest for a week. 3.Without water,plants(die)quickly. 4.If it_(rain)tomorrow,we will stay at home. 5.She wishes she(not miss)the train yesterday. 6.It is high time we(start)preparing for the exam 7.If he_(arrive)on time,he wouldn't have missed the meeting. (三)句型转换 1.He didn't study hard,so he failed the exam.(改为虚拟语气) Ifhe hard,hethe exam 2.You should take more exercise.(用suggest改写) The doctor suggested that_more exercise. 3.She was late because of the heavy rain.(用含蓄虚拟语气改写) Without the heavy rain,she_late. 4.If I were you,.I would apologize to her.(改为倒装句) -you,I would apologize to her 5.They didn't attend the party,.so they didn't meet Tom.(改为虚拟语气) If they_the party,they_Tom. (四)篇章填空 Have you ever thought about life without the Internet?If there 1._(be)no Intemet,we 2. (not keep)in touch with friends easily.We 3.(have)to write letters or make phone calls instead. Many great inventors changed our lives.If Edison 4.(not invent)the light bulb,we 5. (live)in darkness at night.It is high time we 6.(value)these inventions What would you do if you 7.(win)a million dollars?I wish I 8.(can)travel around the world,but I know I 9.(have)to work hard first.If I 10.(study)harder now,I might have more opportunities in the future. (五)参考答案与解析 1.单项选择答案：1.C2.B3.A4.A5.C6.C7.C8.B 2.语法填空答案： 1.hadhad 2.(should)take 3.would die 4.rains 5.hadn't missed 6.started/should start 7.had arrived 3.句型转换答案： 1.had studied,wouldn't have failed 2.I (should)take 3.wouldn't have been 4.Were I 5.had attended;would have met 4.篇章填空答案： 1.were 2.wouldn't keep 3.would have 4.hadn't invented 5.would live 6.valued/should value 7.won 8.could 9.have 10.study 英语语法复习手册·选择性必修3·沪教牛津版（上海教育）·条件状语从句