据说他要么今天来要么明天来．It is said thathe will come either today or tomorrow．题目和参考答案——青夏教育精英家教网—

题目内容

10．据说他要么今天来要么明天来．
It is said thathe will come either today or tomorrow．

分析 he will come either today or tomorrow．

解答答案：he will come either today or tomorrow．句中It is said that中it是形式主语，that从句是真正主语，主句是一般现在时，从句时态不受限制，这里是说将来的事情用一般将来时will+动词原形，主语he，来come，故he will come，要么…要么…either…or…，连接两个对等成分，这里连接today和tomorrow，故答案是 he will come either today or tomorrow．

点评 either…or…主要用于表示选择，其意为"要么…要么…""或者…或者…"，用于连接两个性质相同的词或短语．如：
You must either go at once or wait till tomorrow．你要么马上走，要么等到明天．
either…or…连接两个成分作主语时，谓语动词通常与其靠近的主语保持一致．如：
Either you or I am to go．你或我必须有人去．
Either he or you are right．要么他对，要么你对．
either…or…除可连接两个词或短语外，有时也可连接两个句子．如：
Either you must improve your work or I shall dismiss you．要么你改进工作，要么我就辞退你．

练习册系列答案

1．In common with many countries，Britain has serious environmental problems．In 1952，more than 4，000 people died in London because of the smog．The governmentintroduced new laws to stop smog from coal fires and factories and thesituation improved a lot．
Today，London is much cleaner but there is a new problem：smog from cars．In December 1991，there was very little wind in London and pollution increased a lot．As a result，about 160 people died from pollution in just four days．
Part of the problem is the new"out of town"shopping centers．In the past，people often walked to shops near their home or went by bus．Now，many people drive to the new shopping centers．As a result，the small shops have disappeared and more people have to travel to do their shopping．
Critics（评论员） say that Britain needs better and cheaper public transport．Transportin Britain is very expensive．An early morning train trip from Glasgowto London（about 600km） can cost about 100 pounds，for example．A short 15-minute bus trip can cost over 1.00 pound．
Many people are trying to reduce the use of cars in Britain．Some cities now have special bicycle paths and many people cycle to work．Some people also travel to work together in one car to reduce the pollution and the cost．

Environmental problems in （91）Britain
Time	Causes	Results	Solutions
In the past	Smog from coal （92）firesand factories．	（93）More than4，000 people died in 1952．	New laws were introduced．
Today	Smog caused by （94）cars．	About 160 people died in a few days in 1991．	●Provide （95）betterand cheaper public transport． ●Build special paths for bicycles ●Travel to work together in one car．