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【简答题】
常温下有碳酸钠、氢氧化钙、氢氧化钠、镁条、硝酸铵、氧化钙、食盐七种固体物质； （1）从中选出三种物质分别加入稀盐酸，产生的现象如下表所示： 固体A 固体B 固体C 水 固体不溶解 形成白色悬浊液 固体溶解，并吸收热量． 稀盐酸 固体逐渐消失，有气泡产生，并放出大量的热 白色固体逐渐消失，无气泡产生，并放出热． 白色固体逐渐消失，无气泡产生． 由以上实验确定：固体A是：______，固体B是：______，固体C是：______． （2）象征着“和平、友谊、进步”的奥运会五环旗，同学们都非常熟悉．如图“五环旗”中的每一环表示一种物质，相互连环的物质间能发生反应．请从以上七种物质中选出符合要求的三种物质将其名称填入环内．
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举一反三
【简答题】['wɜːkʃɒp]---work_ _ _ _ n.车间
【单选题】What did Jonathan do when the burglar attempted to escape from the window?
A.
He called the police by shouting at the top of his voice.
B.
He immediately locked the door and rushed to the police station.
C.
He hit the burglar with the point of his umbrella.
D.
He had expected that the burglar would hit him.
【单选题】. The prisoner _____ to escape from the prison. But he couldn’t find anybody to help him.
A.
attempted
B.
managed
C.
advised
D.
offered
【简答题】['wɜːkʃɒp] ________________________________
【单选题】Anyone in my position would have been ruined if he had attempted to ________ depths which not even a lifetime of study could plumb (探索)． [ ]
A.
dive into
B.
look up
C.
agree on
D.
date back
【简答题】He attempted _______ to set up a company of his own. A. with vain B. on vain C. in vain D. of vain
【单选题】The man, ______ of an attempted robbery, insisted that he was innocent and be set free. [ ]
A.
charged
B.
blamed
C.
ashamed
D.
accused
【单选题】He attempted _____ the exam in this term.
A.
passing
B.
pass
C.
to pass
D.
in passing
【简答题】The newspaper reported that Williams would face life in prison if he were convicted ______ attempted murder.
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