1、1_ the Internet is of great help, I dont think its a good idea to spend too much time on it.AIf BWhileCBecause DAs解析：选 B。考查连词。句意：尽管因特网是很有帮助的， 但我认为在网络上花费太多的时间不是个好主意。while 引导让步状语从句， 意为 “尽管” 。2Maybe if I _ science, and not literature then, I would be able to give you more help.Astudied Bwould studyChad
2、 studied Dwas studying解析：选 C。虚拟语气。句意：或许当初我要是学了理科而不是文科，现在就能给你更多的帮助。then 表示过去的时间，if 引导的从句是对过去的虚拟，因此使用过去完成时。3_ regular exercise is very important; its never a good idea to exercise too close to bedtime.AIt BAsCAlthough DUnless解析：选 C。考查连词。句意：尽管有规律的运动很重要，但是在睡前运动不是一个好主意。although 意为“尽管” ，引导让步状语从句。4It was A
3、pril 29, 2011 _ Prince William and Kate Middleton walked into the palace hall of the wedding ceremony.Athat BwhenCsince Dbefore解析：选 B。考查连词。句意： 2011 年 4 月 29 日，威廉王子和凯特步入了婚姻的殿堂。when“当 时” ，引导时间状语从句。5I am too busy these days. I would rather my brother _ next month for a visit.Acome Bwould comeCcame Dhav
4、e come解析：选 C。考查虚拟语气。句意：这几天我很忙。我宁愿弟弟下个月来玩。would rather 后面的从句要用虚拟语气，根据 next month 可知此句表达的是对将来的虚拟，故用一般过去时。6(2012天津高考)Everything was placed exactly _ he wanted it for the graduation ceremony.Awhile BwhenCwhere Dthough解析：选 C。考查状语从句。句意：在毕业典礼上，一切东西都放在他想放的位置。此处 where 引导地点状语从句。7_ unemployment and crime are h
5、igh, it can be assumed that the latter is due to the former.ABefore BWhereCUnless DUntil解析：选 B。考查连词。句意：在失业率及犯罪率居高不下的地方， 可以推断后者是由前者引发的。where 引导地点状语从句。8My parents dont mind what job I do _ I am happy.Aeven though Bas soon asCas long as Das though解析：选 C。考查连词。句意：只要我开心，父母不介意我的工作。as long as “只要”，符合句意。even
6、 though“即使” ，引导让步状语从句；as soon as“一就” ，引导时间状语从句；as though“仿佛， 好像” ，引导方式状语从句。9Mr. Smith proposed that a new playground _ in the mountain area school.Abe built Bshould buildCwas built Dbeing built解析：选 A。考查虚拟语气。句意：史密斯先生提议在这所山村小学建一个新的操场。propose “建议，提议” ，其后的宾语从句要用 “(should )动词原形”的虚拟语气形式，故 A 项正确。10(2012陕西高考)All the photographs in this book, _ stated otherwise, date from the 1950s.Aunless BuntilConce Dif解析：选 A。考查状语从句。句意：这本书里所有的照片，除非有说明的，否则，都要追溯到 20 世纪 50 年代。所填词表条件，从句用了省略句式。unless “否则” ；until “直到” ；once“一旦 ”；if “如果 ”。
