2、近年來受中東戰(zhàn)亂以及世界金融危機(jī)的影響,世界油價波動變化很大,下列物質(zhì)受石油價格影響最小的是( )
A.聚乙烯 B.煤氣 C.煤油 D.石蠟
1、化學(xué)在自然資源的開發(fā)和利用中具有重要的意義,下列對其認(rèn)識中不正確的是( )
A.利用化學(xué)知識和化學(xué)規(guī)律,人們可以更好的開發(fā)和利用資源
B.利用化學(xué)知識和化學(xué)規(guī)律,人們可以制取更多物質(zhì),豐富物質(zhì)世界
C.人們在開發(fā)和利用資源的過程中,對環(huán)境造成了污染,化學(xué)對此無能為力
D.人們對資源的開發(fā)和利用過程中,時刻不能忘記資源的可持續(xù)性發(fā)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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