Because there are no classes tomorrow，so they will go on a picnic.（改正 的方法是去掉as, because或去掉so。）
4．当because用来解释或说明某一动作时，不能用for来代替。Why开头的问句要用 because开头引出原因，而不能用for开头引出原因。
连词考点分析
1．She thought I was talking about her daughter,______in fact I was talking about my daughter.
A.whom B.where C.which D.while
析：空白处需填一个表示转折对比的连词，while可表“而”、“却”意，故答案为D。 2．He hasn?t yet arrived. He may,______, come later. A.but B.though C.or D.however
析：从空白处看，前后都有逗号，however适合填入，又因however意“然而”，“但是”， 填入空白处后，前后两句意思连贯，故D为正确选项 3．— I don?t like fish______ chicken.
— I don?t like fish______ I like chicken very much. A.and; and B.and; but C.or; but D.or; and
析：观察第一句，谓语为否定式，其空白处应该用or来连接并列事物，故可排除A、B。 观察第二句，显然空白处需用一个转折连词，故答案为C。
4．Good technique in medicine means less pain and fewer deaths and,_____ ,it is our duty to master it.
A.altogether B.therefore C.otherwise D.however 析：从上下文看，前后为因果关系，故应选B。
5．Mother was worried because little Alice was ill, especially______ Father was away in France.
A.as B.that C.during D.if
析：首先可排除C。因为during是介词，不能引导从句。that和if虽然可以引导从句， 但不能表述Mother was worried的原因。故只能选A。 6．______ you don?t like him is none of my business. A.What B.Who C.That D.Whether
析：从题干看，需要空白处填一词引出you don?t like him这样一个事实，显然只有选 C.That合适。
7．The day breaks______ the birds are singing. A.because B.as C.since D.for
析：若选A、B、C，则The day breaks(天亮)的原因就是the birds are singing(鸟叫)，
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显然这是不成理的，只有for引出的句子作为一种附加说明才成立。
介词、连词专练
1．—The place isn?t too bad, is it? —______ it?s a bit too crowded.
A.No, but B.Yes, though C.No, because D.Yes, yet 2．Five minutes earlier,_____ we could have caught the last train. A.but B.and C.so D.or 3．They may go to London, but they are not certain______. A.still B.yet C.already D.however 4．This word may be used both as a noun_____as a verb. A.as well as B.nor C.and D.or 5．I have read one of his plays______a lot of his poems. A.but B.while C.as well as D.as well 6．We can?t see air, ______,it does exist.
A.and B.but C.however D.still 7．Do what you have been told,____ you will be punished.
A.and B.but C.or D.after all 8．She was ill,_____she can?t come.
A.for B.therefore C.but D.or 9．—I thought he hated TV.
—You are right,_____he still watches the program. A.besides B.also C.then D.yet 10．_____you are dismissed.
A.Either you go or B.Whether you go or C.Both you go and D.Not only you go but also 11．It is strange, ______ it is true.
A.if B.or C.so D.and 12．I asked her to stay for tea,_____ I had something to tell her. A.but B.for C.or D.and 13．I remember_____ this used to he a quiet village. (NMET) A.when B.how C.where D.what
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14．It will be hours______ she comes back.
A.before B.since C.after D.by 15．I had no idea about it______ he told me.
A.until B.there C.that D.where 16．Air to us is _____ water to fish.
A.what B.that C.which D.of which
17．When you read the book, you?d better make a mark____ you have questions. A.where B.at which C.at where D.the place where 18．I had no idea where he had been_____ he told me.
A.when B.until C.except D.because 19．_____,Mother will wait for him to have dinner together. (NMET) A.However late is he B.However he is late C.However D.However late he is
20．It worried her a bit_____ her hair was turning gray. (NMET) A.while B.that C.if D.for
21．I don?t doubt_____ he can pass the entrance examination. A.whether B.when C.that D.how
22．Never believe anything____ any other person has believed it.Use your own mind. A.that B.when C.because D.nor
23．Don?t stop_____you meet with a word you don?t understand. A.at that time B.each time C.sometimes D.before 24．Take an umbrella______ it rains.
A.in case B.in any case C.because D.for 25．_____the teacher found goodness, he praised it. A.Wherever B.However C.As D.Because 26．I saw a stranger______ a distance of ten yards. A.at B.in C.by D.to 27．She went to Shanghai______ way of Nanjing. A.by B.on C.in D.to 28．Mr.Smith set out_____ USA last week.
A.about B.in C.to D.for
29．______the leadership of the Party,we should not have succeeded. A.Under B.With C.Having not D.But for
30．It?s well-known______ all of us that Taiwan belongs_______ China.
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A.by; to B.to; to C.for; to D.to; of 31．_____what age do children begin to go to school? A.Of B.From C.For D.At 32．My aunt came back______ three days.
A.after B.in C.around D.about 33．What did people say______ me?
A.with B.by C.forward D.of 34．In this company we are paid______the month. A.on B.at C.by D.for
35．Students who live in crowded homes find it difficult to study_____comfort. A.in B.for C.from D.without 36．She looks quite young______her age.
A.at B.of C.by D.for 37．The car went_____the direction of the post office. A.to B.in C.by D.for 38．Children are often named_______ their parents. A.after B.with C.on D.for 39．－Let?s go home.
－Ok. I?m getting tired______ shopping. A.with B.at C.about D.of
40．Kate?s little brother kicked the ball to the river, she took great trouble to get it _____ the water.
A.on B.over C.from on D.from over 41．We are still one mile_____ the destination (目的地). A.in need B.out of C.outside D.short of 42．She worked______ science_______ her life. A.on; throughout B.at; of C.for; for D.out; in 43．The boy is quick______ understanding. A.of B.about C.to D.over
44．The field was full______ sheep feeding____the new grass. A.with; on B.of; in C.with; in D.of; on 45．You unlock the door______ turning the key_____ right. A.by; to B.by; on C.in; on D.in; to
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46．We stopped _____ London_____ the way_____ New York. A.in; or; to B.at; on; of C.at; on; to D.at; to; of 47．In some countries children normally go to school______bikes. A.onto B.on C.by D.in 48．He was listened______ great interest.
A.to B.to with C.with D.in 49．Considered______a building material, wood is very strong. A.for B.upon C.on D.as 50．The mountains look grey_______ the blue sky. A.against B.over C.under D.for
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介词、连词专练答案
1－5 A B B C C 6－10 C C B D A 11－15 D B A A A 16－20 B A B D B 21－25 C C B A A 26－30 A A D D B 31－35 D A D C A 36－40 D B A D C 41－45 D A A D A 46－50 C B B D A
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