(六)连词1单项填空。(C)1.Michael tried his best，_ he caught up with the others at last.Abut BorCand Dbecause(B)2.The worlds population will still increase _ we do something to control it.Aor BunlessCbut Dand(B)3.Youd better wake up Tom at 6：30，_ he will be late for the match.Aif BorCand Dbut(A)4.Michael was playing basketball with his friends _ his brother was listening to music.Awhile BafterCuntil Dbecause(B)5.What do you think of this skirt?Its beautiful and it fits me well，_ I like it very much.Asince BsoCbut Dor(C)6.More than five million people have visited Disneyland parks around the world_ American Disneyland opened in July，1955.Aafter BbeforeCsince Dthough(B)7.It is _ a beautiful garden _ we like to play in it.Aso；that Bsuch；thatCtoo；to Dvery；that(B)8._ the soldiers are very tired，_ they keep on working.They are great.We must learn from them.ABecause；/ BThough；/CBecause；so DThough；but(C)9.Mr.Smith has a habit of taking a shower _ he has breakfast.Abecause BwhenCbefore Dsince(B)10.These storybooks for children are awfully written.They are _ interesting _ exciting.Aeither；or Bneither；norCboth；and Dnot only；but also(D)11.You will be late _ you dont hurry up.Dont worry.Ill go to school as quickly as possible.Aafter BwhenCunless Dif(B)12.A Spring Morning is my favorite poem _ its words are beautiful and I can feel the sense of spring in it.Auntil BbecauseCthough Dif(B)13.Mike quickly goes bad _ its put in the fridge.Aif BunlessCwhether Duntil(B)14.My boss is waiting for the report，so I cant leave here _ I finish it.Asince BuntilCthough Dif(D)15._ she couldnt see his face，she could tell by his voice.AUnless BIfCBecause DThough(B)16.Jacks mother was so tired.She fell asleep _ she lay down on the bed.Auntil Bas soon asCunless Dalthough(A)17._ each of us lives a greener life，the world will get better and better.AIf BBeforeCUntil DThough(C)18.How time flies！It has been five years _ I saw my primary school classmates last time.Athough BuntilCsince Dbefore(C)19.Mike，please turn down the music._ Lucy _ Lily are sleeping.Sorry，Ill do it right away.ANeither；nor BEither；orCBoth；and DNot only；but also(C)20.I dont like singing _ dancing.What about you?I dont like dancing，_ I like singing.Aand；and Band；butCor；but Dor；and(D)21.Tell us something about Canada，OK?Im sorry._ Jack _ I have ever been there.AEither；or BNot only；but alsoCBoth；and DNeither；nor