【導讀】課時作業(yè)(四)Weletotheunit&Reading. Ⅰ.單詞拼寫。Ⅱ.單項填空。A.hasrunoutB.isrunout. C.wasrunoutofD.isrunningout. A.astwiceB.twicemuch. C.twicemuchasD.twiceasmuch. —Didit?A.aslongasB.unless. C.assoonasD.though. A.whereB.how. C.whenD.what. A.operatedB.operatedon. C.tooperateD.operatingon. A.neitherwon'tTom. B.Tomwon'teither. C.Tomwilltoo. D.sowillTom. A.followedB.shouldfollow. C.hadfollowedD.wouldfollow. A.causedB.hadcaused. C.tocauseD.havingcaused. forsafety.A.notallowB.donotallow. C.mustn'tallowD.couldn'tallow. A.thoughB.aswell. C.tooD.either. Ⅲ.閱讀理解。A. sustainable(可支撐的)lifestyles.thepresentmoment.