Ⅱ.巧思妙解 1.(2011·江西师大附中模拟)________you take part in physical activity________be able to keep fit and stay healthy. A.Only if;you willB.Only if;will you C.Unless;you will D.Unless;will you 解析: 考查部分倒装。句意为:只有参加体育锻炼,你才能保持身体健康。“Only+状语从句”放于句首时,主句要进行部分倒装。此处是“Only+if引导的条件状语从句”,故主句须用倒装形式,因而排除A、C两项,unless不符合语意,故排除D而选B。 答案: B 2.Only at the moment________that only________late for the meeting.Everybody else was seated calmly in their places. A.did I realize;I wasB.did I realize;was I C.I realized;I wasD.I realized;was I 解析: 考查倒装句和语序。当only修饰主语之外的句子成分如状语、宾语并与它所修饰的成分一起放在句首时,句子要用倒装,因此第一空用倒装形式;第二空的only修饰宾语从句的主语,此时句子应用正常语序,因此选A。 答案: A 3.Every one of us must know:________we live can we save the earth. A.by changing the way only B.only by changing the way C.by only changing the way D.by changing only the way 解析: 空格后为倒装语序,判定选项应为only+介词短语。 答案: B 4.________by keeping down costs will PowerData hold its advantage over other companies. A.Only |