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It _____ about twenty years since CCTV ____ to broadcast English programs.


  1. A.
    has been; begun
  2. B.
    is; began
  3. C.
    is; has begun
  4. D.
    was; began
B
试题分析:考查固定句型。固定句型:it is/has been 一段时间since从句。句意:自从…以来。已经一段时间了。Since后面使用过去时,指从过去开始到现在,前面可以使用一般现在时,也可以使用现在完成时。句意:自从中央电视台播放英语节目到现在已经有20多年了。故B正确。
考点:考查固定句型。
点评:固定句型:it is/has been 一段时间since从句。句意:自从…以来。已经一段时间了。Since后面使用过去时,指从过去开始到现在,前面可以使用一般现在时,也可以使用现在完成时。
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【小题1】
A.away B.offC.up D.down
【小题2】
A.themB.myselfC.yourselfD.others
【小题3】
A.saidB.spokenC.spreadD.repeated
【小题4】
A.as long asB.as far back asC.as well asD.as much as
【小题5】
A.basisB.plotC.causeD.meaning
【小题6】
A.leadB.improveC.affectD.change
【小题7】
A.encouragedB.demandedC.hopedD.agreed
【小题8】
A.meansB.toolsC.facilitiesD.hammers
【小题9】
A.thereforeB.somehowC.insteadD.however
【小题10】
A.settledB.turnedC.tookD.got
【小题11】
A.passiveB.activeC.negativeD.subjective
【小题12】
A.experiencesB.tripsC.roadsD.paths
【小题13】
A.unexpected B.poorC.excellentD.average
【小题14】
A.WhenB.WhatC.How D.Why
【小题15】
A.complexB.advancedC.common D.primary
【小题16】
A.ariseB.separateC.sufferD.come
【小题17】
A.believeB.suspectC.adoptD.receive
【小题18】
A.weakeningB.strengtheningC.abandoningD.accepting
【小题19】
A.As a resultB.At the same timeC.In additionD.On the contrary
【小题20】
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