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??????? ? ? Unit?7?The?unknown?world??语法练习 一．?基础巩固。? (??)1.?I?hate?travelling?by?air_____?you?usually?have?to?wait?for?hours?before?the? plane?takes?off.????A.?because???B.?though???C.?until???D.?Unless (??)2.?Because?it?is?hot,?_____?we?decide?to?go?swimming.????? ?--Can?I?join?you???? ?A.?so????B.?thus????C./?????D.?for? (??)3.—Why?you?are?absent?????? --_____?I?am?ill.???? A.?Since????B.?For?????C.?As????D.?Because? (??)4.____?everyone?is?here,?let’s?begin.??? ?But????B.?Since????C.?So????D.?If? ?(??)5.She?was?praised______?she?often?helped?others.??? ?but????B.?for????C.?or????D.?if? (??)6.______?the?heavy?snow,?we?didn’t?go?to?school.??? ?Because???B.?Because?of??C.?For????D.?Since? (??)7.Because?it?is?raining,_____?we?have?to?put?off?the?sports?meeting.?? ?A.?so?????B./?????C.?and????D.?then? (??)8.--_______it?is?late?,?I?should?go?home?now.? --Oh,?do?you?have?to???? ?Since????B.?Or????C.?Because?of??D.?But? (??)9.—The?sun?must?have?set,____?it?is?growing?dark.? ---?Yes,?and?it’s?6?o’clock?now.??? ?for?????B./?????C.?however???D.?thus? (??)10.---?I?will?go?to?the?party?alone?____?you?don’t?want?to?go.??? ?until????B.?since????C.?however???D.?whether? (??)12.?The?man?can’t?get?on?the?bus?______?there?is?no?room?on?it.??? ?though?????B.?because??????C.?until??????D?so?that?? (??)13.?______?her?daughter?hadn’t?come?back,?______?she?looked?worried.??? ?Because,?/???B.?Because,?so????C.?Though,?but??D.?Though,?/? (??)14._______?you’ve?got?a?chance,?you?might?make?full?use?of?it.???? A.?Now?that?????B.?After??????C.?Although????D.?As?soon?as? (??)15.?He?found?it?difficult?to?read,?_______?his?eyesight?was?beginning?to?fail.??? A.?and??????B.?for???????C.?but??????D.?or? (??)16.?A?man?cannot?smile?like?a?child,?________?a?child?smiles?with?his?eyes,?while?a?man?smiles?with?his?lips?alone.???A.?so???????B.?but???????C.?and??????D.?For 形容词、副词综合复习与训练 ( )1．Water is the cheapest drink. And its also ________. A．healthier B．healthiest C．the healthier D．the hea