Unit 5 Meeting your ancestors课时作业
第一节:单项填空(共15小题;每小题1分,满分15分)
从每题所给的A、B、C、D四个选项中,选出可以填入空白处的最佳选项。
1.You should be ________ for your appointment with your friends.
A.compulsory B.punctual
C.optional D.unpunctual
解析:选B 句意:和朋友约会,你应该准时。compulsory "必须的,强制的";punctual "准时的";optional "选修的";unpunctual "不守时的"。根据语境可知B项正确。
2.-Shall we go to see the new film?
-________? Let's make it tonight.
A.Why not B.Why
C.What for D.What
解析:选A 句意:"我们去看新电影怎么样?""为什么不呢?咱们今晚就去。"此处表示同意对方意见,故要用Why not, 意为"当然可以"。
3.Let's put our heads together and ________ a plan of action.
A.decide to B.decide in
C.decide on D.decide at
解析:选C 句意:咱们一起商量一下确定一个行动计划吧。decide on "就......作出决定"。decide to后接动词原形。
4.The chemical industry ________ most responsibility for the local pollution accidents.
A.concerns B.tolerates
C.undertakes D.ignores
解析:选C 句意:化工产业对当地的污染事件负大部分责任。undertake "承担";concern "关注";tolerate "容忍";ignore "忽略"。根据句意可知,C项正确。
5.-Who shall I turn to?
-Why not consult Mr Wang? He is a(n) ________ on this kind of matter.
A.ability B.authority
C.right D.power
解析:选B 句意:"我应该向谁求助呢?""为什么不咨询王先生呢?他是这种问题上的权威。"authority on sth.意为"某方面的权威",固定短语,故B项正确。ability "能力";right "权力"; power "政权,权力"。
6.Visitors are not permitted ________, sometimes because the flashlight can damage the