2、近年来受中东战乱以及世界金融危机的影响,世界油价波动变化很大,下列物质受石油价格影响最小的是( )
A.聚乙烯 B.煤气 C.煤油 D.石蜡
1、化学在自然资源的开发和利用中具有重要的意义,下列对其认识中不正确的是( )
A.利用化学知识和化学规律,人们可以更好的开发和利用资源
B.利用化学知识和化学规律,人们可以制取更多物质,丰富物质世界
C.人们在开发和利用资源的过程中,对环境造成了污染,化学对此无能为力
D.人们对资源的开发和利用过程中,时刻不能忘记资源的可持续性发展
10.(★★★★★)He through the forest alone.
A.dare walk B.dare to walk
C.dares walking D.dares to walk
9.(★★★★★)It’s dark now.We have to stay here for the night, ?
A.don’t we B.haven’t we
C.mustn’t we D.shouldn’t we
8.(★★★★★)You must have seen the film last night, you?
A.mustn’t B.isn’t
C.didn’t D.haven’t
7.(★★★★★)-Do you think he will do me a favour?
-As far as I know,he is the last one to help others.He be prepared to give you a hand,though. (南京二模)
A.might B.must
D.should
6.(★★★★★)-Are you coming to Jeff’s party?
-I’m not sure.I go to the concert intead. (2000年高考)
A.must B.would
C.should D.might
5.(★★★★★)I was really anxious about you________ home without a word.
(2001年高考)
A.musn’t leave B.shouldn’t have left
C.couldn’t have left D.needn’t leave
4.(★★★★★)Better set off at once,________?
A.won’t you B.shall we
C.hadn’t you D.wouldn’t you
3.(★★★★)I’ve tried many times,but the car just________.
A.won’t start B.wouldn’t start
C.doesn’t start D.didn’t start
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