高考英语一轮复习 每日一题（第18周）虚拟条件句（含解析）.doc

虚拟条件句高考频度： 难易程度： 1.(2017北京卷单项填空) if the new safety system _ to use, the accident would never have happened. a. had been put b. were put c. should be put d. would be put【参考答案】a2.(2016天津卷单项填空)i was wearing a seatbelt. if i hadnt been wearing one, i _. a. were injured b. would be injured c. had been injured d. would have been injured【参考答案】d【答案解析】句意：我当时系着安全带。如果我没有系安全带，我就会受伤了。使用虚拟语气，根据if条件句用的had done，可知，主句用would have done表示对过去情况的虚拟，而且i和injure是被动关系。故选d。【考点解读】 if条件句中的虚拟语气if条件从句从句的谓语形式主句的谓语形式表示现在情况动词过去式(be的过去式用were)should/would/could/might动词原形表示过去情况had过去分词should/would/could/mighthave过去分词表示将来情况should动词原形should/would/could/might动词原形动词过去式were to动词原形if i were you，i would take an umbrella.如果我是你，我会带把伞。we would have called a taxi yesterday if harold hadnt offered us a ride home.如果昨天哈罗德没送我们回家，我们会打出租车回家的。【巧学妙记】虚拟语气记忆口诀虚拟语气表愿望；if句中三情况；与现事实若相反；从过全were 主would原；过从had过分连；would have过分键；从过were to should原；would动原主将反。1. (2017江苏卷单项填空)_ not for the support of the teachers, the student could not overcome her difficulty.a. it were b. were it c. it was d. was it2. (2016北京卷单项填空)why didnt you tell me about your trouble last week? if you _ me, i could have helped.a. told b. had toldc. were to tell d. would tell3. (2016天津卷单项填空) had the governments and scientists not worked together , aids-related deaths _ since their highest in 2005.a. had not fallen b. would not fall c. did not fall d. would not have fallen4.if you _ yourself to doing everything in the order given, you would miss an opportunity to be a unique indivi